JP2014007464A - Light source device and reflector plate support structure - Google Patents

Light source device and reflector plate support structure Download PDF

Info

Publication number
JP2014007464A
JP2014007464A JP2012140062A JP2012140062A JP2014007464A JP 2014007464 A JP2014007464 A JP 2014007464A JP 2012140062 A JP2012140062 A JP 2012140062A JP 2012140062 A JP2012140062 A JP 2012140062A JP 2014007464 A JP2014007464 A JP 2014007464A
Authority
JP
Japan
Prior art keywords
plate
light source
light guide
light
scanning direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2012140062A
Other languages
Japanese (ja)
Other versions
JP5853879B2 (en
Inventor
Akiko Tonai
亜紀子 藤内
Daisuke Ohama
大輔 大濱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2012140062A priority Critical patent/JP5853879B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to CN201280069159.8A priority patent/CN104094045B/en
Priority to US14/367,044 priority patent/US9151465B2/en
Priority to PCT/JP2012/083524 priority patent/WO2013118414A1/en
Priority to EP12867829.9A priority patent/EP2813748B1/en
Priority to EP15162476.4A priority patent/EP2916064B1/en
Priority to KR20147020800A priority patent/KR20140113991A/en
Priority to TW102104328A priority patent/TW201351955A/en
Publication of JP2014007464A publication Critical patent/JP2014007464A/en
Application granted granted Critical
Publication of JP5853879B2 publication Critical patent/JP5853879B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Facsimile Scanning Arrangements (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Facsimile Heads (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a light source device and a reflector plate support structure, having a small number of components and having a high precision reflector plate.SOLUTION: The light source device or the reflector plate support structure includes a reflector plate extending in a primary scanning direction and a plurality of reflector plate support parts that are intermittently disposed along the primary scanning direction to support the reflector plate. Otherwise, the light source device or the reflector plate support structure includes the reflector plate extending in the primary scanning direction and the plurality of reflector plate support parts that are disposed by being mutually separated in a predetermined interval along the primary scanning direction to support the reflector plate.

Description

この発明は、画像読取装置(画像形成装置)の照明に使用される光源装置及び画像読取装置(画像形成装置)に使用される及び反射板支持構造に関するものである。   The present invention relates to a light source device used for illumination of an image reading apparatus (image forming apparatus) and a reflector support structure used for an image reading apparatus (image forming apparatus).

従来、画像読取装置の照明に使用される光源装置としては、画像読取装置の主走査方向に延在する透明な導光体の端部にLEDなどの光源を配置し、光を入射させて、光が入射された導光体の側面から光を出射させるものがある(例えば、特許文献1〜3参照)。所謂サイドライト方式の光源装置である。   Conventionally, as a light source device used for illumination of an image reading device, a light source such as an LED is disposed at the end of a transparent light guide extending in the main scanning direction of the image reading device, and light is incident thereon. Some emit light from the side surface of the light guide into which light is incident (see, for example, Patent Documents 1 to 3). This is a so-called side light type light source device.

特許文献1に記載のような光源装置は、導光体の端面に光学フィルタを対向させて配置している。また、特許文献2及び3に記載のような光源装置は、導光体の周囲の温度変化による膨脹や収縮に対する対策を施している。なお、特許文献1及び2に記載のように導光体の両端面に光源を配置するものや、特許文献3に記載のように導光体の片方の端面に光源を配置するものがある。   In a light source device as described in Patent Document 1, an optical filter is disposed opposite to an end face of a light guide. Further, the light source devices as described in Patent Documents 2 and 3 take measures against expansion and contraction due to temperature changes around the light guide. There are a light source disposed on both end faces of the light guide as described in Patent Documents 1 and 2, and a light source disposed on one end face of the light guide as described in Patent Document 3.

導光体の片方の端面に光源を配置する光源装置の例としては、他に特許文献4〜8が挙げられる。特許文献4に記載のような導光体に対して、特許文献5〜8に記載のような導光体の端部が屈曲したものもある。もちろん、特許文献8の図10に記載されているように、導光体の両端部が屈曲し、その屈曲した導光体の両端面に光源を配置するものもある。   Other examples of the light source device in which the light source is disposed on one end face of the light guide include Patent Documents 4 to 8. In contrast to the light guide as described in Patent Document 4, there are some in which the ends of the light guide as described in Patent Documents 5 to 8 are bent. Of course, as described in FIG. 10 of Patent Document 8, there is a type in which both ends of the light guide are bent and light sources are arranged on both ends of the bent light guide.

また、他の画像読取装置の照明に使用される光源装置としては、画像読取装置の主走査方向に複数のLEDなどの光源を配列したものがある(例えば、特許文献9,10,11参照)。特許文献9及び10には、LEDから出射した光を導光部材によって導光し、反射板へ照射するものが記載されている。また、特許文献11には、LEDから出射した光を反射板へ照射するものが記載されている。所謂LEDアレイ方式の光源装置である。   Further, as a light source device used for illumination of another image reading device, there is one in which light sources such as a plurality of LEDs are arranged in the main scanning direction of the image reading device (see, for example, Patent Documents 9, 10, and 11). . Patent Documents 9 and 10 describe light that is emitted from an LED, guided by a light guide member, and applied to a reflecting plate. Japanese Patent Application Laid-Open No. H11-228688 describes a technique for irradiating a reflector with light emitted from an LED. This is a so-called LED array type light source device.

また、特許文献9,10,11には、画像読取装置の結像光学系を構成する反射板(第1ミラー)に関する記載もある。特に、特許文献10の図5には、画像読取装置のキャリッジに支持された反射板(第1ミラー)が開示されている。   Patent Documents 9, 10, and 11 also describe a reflector (first mirror) that constitutes the imaging optical system of the image reading apparatus. In particular, FIG. 5 of Patent Document 10 discloses a reflecting plate (first mirror) supported by a carriage of an image reading apparatus.

画像読取装置のキャリッジに支持された反射板(第1ミラー)には、特許文献12及び13に記載のものがある。特許文献12及び13では、反射板(第1ミラー)の両端部が支持されている。   Japanese Patent Application Laid-Open Nos. 2004-133 and 2004-0897 include reflection plates (first mirrors) supported by the carriage of the image reading apparatus. In Patent Documents 12 and 13, both end portions of the reflection plate (first mirror) are supported.

特開2008−28617号公報(第1図及び第5図)JP 2008-28617 A (FIGS. 1 and 5) 特開2010−103742号公報(第1図)JP 2010-103742 A (FIG. 1) 特開2011−61411号公報(第3図)Japanese Patent Laying-Open No. 2011-61411 (FIG. 3) 特開2006−85975号公報(第2図及び第7図)JP-A-2006-85975 (FIGS. 2 and 7) 特開2010−21983号公報(第5図,第8図,第11図)JP 2010-21983 (FIGS. 5, 8, 11) 特開2007−201845号公報(第7図)Japanese Patent Laid-Open No. 2007-201845 (FIG. 7) 特開2004−266313号公報(第1図及び第5図)JP 2004-266313 A (FIGS. 1 and 5) 特開平11−55476号公報(第4図、第10図)Japanese Patent Laid-Open No. 11-55476 (FIGS. 4 and 10) 特開2011−211464号公報(段落番号[0023],第3図〜第6図)Japanese Unexamined Patent Publication No. 2011-211144 (paragraph number [0023], FIGS. 3 to 6) 特開2011−49808号公報(段落番号[0037],第3図,第4図,第5図)Japanese Patent Laying-Open No. 2011-49808 (paragraph number [0037], FIG. 3, FIG. 4, FIG. 5) 特開2007−318406号公報(第4図,第8図〜第11図)Japanese Unexamined Patent Publication No. 2007-318406 (FIGS. 4 and 8 to 11) 特開2002−135533号公報(第3図)JP 2002-135533 A (FIG. 3) 特開2004−279663号公報(第2図〜第7図)JP 2004-279663 A (FIGS. 2 to 7)

18の課題
画像読取装置用の光源装置は、画像読取装置の高速化と高解像度化に伴い、光源の高輝度化と長手方向かつ高さ方向に均一な光を供給することが求められている。また、画像読取装置の読取対象が厚みのある本を画像読取装置の載置台(天板)から離間して載置した時に、読み取った画像データに影の部分が生じる。そのため、従来から、特許文献9,10,11に記載のように、反射板と導光体を用いて、二つ光路から読取対象を照射していた。
Problem 18 Light source devices for image reading devices are required to increase the brightness of the light source and to supply uniform light in the longitudinal direction and the height direction as the image reading devices increase in speed and resolution. . Further, when a book whose thickness is to be read by the image reading apparatus is placed apart from the mounting table (top plate) of the image reading apparatus, a shadow portion is generated in the read image data. Therefore, conventionally, as described in Patent Documents 9, 10, and 11, the reading target is irradiated from two optical paths using a reflector and a light guide.

しかし、特許文献9,10,11に開示される反射板は、反射板の背面の大部分を支持していたり、反射板の端部で支持したりしているので、前者は反射板の支持する部材の撓みや反りが反射板に影響を与える可能性があるという課題や、後者は反射板の自重による撓みや支持部材の変形による反射板の反りが生じる可能性があるという課題があった。   However, since the reflecting plate disclosed in Patent Documents 9, 10, and 11 supports most of the back surface of the reflecting plate or supports at the end of the reflecting plate, the former supports the reflecting plate. There is a problem that bending or warping of the member to be affected may affect the reflecting plate, and the latter has a problem that bending of the reflecting plate due to its own weight or warping of the reflecting plate due to deformation of the supporting member may occur. .

例えば、特許文献9では、反射板54が反射板ブラケット59に保持され、反射板ブラケット59と導光体53と別に第1枠体58に設置されており、反射板(ミラー)取り付け面が全長に渡っており、板金曲げ精度が悪くなる可能性があるという課題があった。また、構造が複雑になるという課題もあった。   For example, in Patent Document 9, the reflection plate 54 is held by the reflection plate bracket 59 and is installed on the first frame 58 separately from the reflection plate bracket 59 and the light guide 53, and the reflection plate (mirror) mounting surface is the full length. There is a problem that the sheet metal bending accuracy may be deteriorated. There is also a problem that the structure becomes complicated.

また、同種の課題が、特許文献10,12,13に開示される画像読取装置のキャリッジに支持された反射板(第1ミラー)にもあった。   Further, the same kind of problem is also present in the reflector (first mirror) supported by the carriage of the image reading apparatus disclosed in Patent Documents 10, 12, and 13.

この発明は、上記のような課題を解消するためになされたもので、部品点数が少なく、精度のよい反射板を有する光源装置及び反射板支持構造を提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a light source device and a reflecting plate support structure having a reflecting plate with a small number of parts and high accuracy.

請求項1の発明に係る光源装置は、画像読取装置に使用する光源装置であって、主走査方向に延在する棒状光源又はアレイ光源と、この棒状光源又はアレイ光源と対向して配置され、前記主走査方向に延在し、前記棒状光源又はアレイ光源の側面から出射した光を反射する反射板と、前記主走査方向に沿って間欠的に配列され、前記反射板を支持する複数の反射板支持部とを備えたことを特徴とするものである。   A light source device according to a first aspect of the present invention is a light source device used for an image reading device, and is arranged to face a rod-like light source or array light source extending in the main scanning direction, and the rod-like light source or array light source, A reflector that extends in the main scanning direction and reflects light emitted from the side surface of the rod-shaped light source or array light source, and a plurality of reflections that are intermittently arranged along the main scanning direction and support the reflector And a plate support portion.

請求項2の発明に係る光源装置は、画像読取装置に使用する光源装置であって、主走査方向に延在する棒状光源又はアレイ光源と、この棒状光源又はアレイ光源と対向して配置され、前記主走査方向に延在し、前記棒状光源又はアレイ光源の側面から出射した光を反射する反射板と、前記主走査方向に沿って、互いに所定の間隔を空けて配列され、前記反射板を支持する複数の反射板支持部とを備えたことを特徴とするものである。   A light source device according to a second aspect of the present invention is a light source device used in an image reading device, and is arranged to face a rod-like light source or array light source extending in the main scanning direction, and the rod-like light source or array light source, A reflector that extends in the main scanning direction and reflects light emitted from a side surface of the rod-shaped light source or the array light source, and is arranged at a predetermined interval along the main scanning direction; And a plurality of reflecting plate supporting portions to be supported.

請求項3の発明に係る光源装置は、前記複数の反射板支持部が、前記反射板における前記棒状光源又はアレイ光源の側面から出射した光を反射する面と反対の面側に配置されたものである請求項1又は2に記載のものである。   The light source device according to a third aspect of the present invention is such that the plurality of reflecting plate support portions are arranged on the surface opposite to the surface that reflects the light emitted from the side surface of the rod-shaped light source or the array light source in the reflecting plate. It is a thing of Claim 1 or 2.

請求項4の発明に係る光源装置は、前記複数の反射鏡支持部が、前記複数の反射鏡支持部を支持する板状部材に対して、前記主走査方向を対する副走査方向に対して角度を有して起立しているものである請求項1〜3のいずれかに記載のものである。   In the light source device according to a fourth aspect of the invention, the plurality of reflecting mirror support portions are at an angle with respect to the sub-scanning direction with respect to the main scanning direction with respect to the plate-like member that supports the plurality of reflecting mirror support portions. It is a thing in any one of Claims 1-3 which has it.

請求項5の発明に係る光源装置は、前記複数の反射鏡支持部が、前記板状部材と一体である請求項4に記載のものである。   The light source device according to a fifth aspect of the present invention is the light source device according to the fourth aspect, wherein the plurality of reflecting mirror support portions are integrated with the plate-like member.

請求項6の発明に係る光源装置は、前記複数の反射鏡支持部が、それぞれ前記板状部材の前記主走査方向に沿った一端を折り曲げて形成されたものである請求項5に記載のものである。   6. The light source device according to claim 6, wherein each of the plurality of reflecting mirror support portions is formed by bending one end of the plate-like member along the main scanning direction. It is.

請求項7の発明に係る光源装置は、前記板状部材が、前記主走査方向に沿った一端のうち、前記複数の反射鏡支持部以外の部分が、それぞれ前記板状部材と連続する複数の板状端部を有する請求項6に記載のものである。   In the light source device according to the seventh aspect of the invention, the plate-shaped member has a plurality of portions other than the plurality of reflecting mirror support portions that are continuous with the plate-shaped member, at one end along the main scanning direction. It is a thing of Claim 6 which has a plate-shaped edge part.

請求項8の発明に係る光源装置は、前記板状端部が、前記主走査方向の長さが、前記反射鏡支持部の前記主走査方向の長さよりも長いものである請求項7に記載のものである。   The light source device according to an eighth aspect of the present invention is the light source device according to the seventh aspect, wherein the plate-like end portion has a length in the main scanning direction that is longer than a length of the reflecting mirror support portion in the main scanning direction. Is.

請求項9の発明に係る光源装置は、前記複数の板状端部が、前記画像読取装置のキャリッジとの接続インターフェース手段を有する請求項7又8に記載のものである。   A light source device according to a ninth aspect of the present invention is the light source device according to the seventh or eighth aspect, wherein the plurality of plate-like end portions have connection interface means with a carriage of the image reading device.

請求項10の発明に係る光源装置は、前記複数の板状端部が、前記複数の反射鏡支持部と連続する基端側から前記副走査方向に沿った先端側が、それぞれ接続されて一体となっているものである請求項7、8、9のいずれかに記載のものである。   In the light source device according to the invention of claim 10, the plurality of plate-like end portions are integrally connected to a distal end side along the sub-scanning direction from a base end side continuous with the plurality of reflector support portions. It is a thing in any one of Claim 7,8,9.

請求項11の発明に係る光源装置は、前記板状部材が、前記板状部材の他端で前記棒状光源又はアレイ光源を保持するものである請求項6〜10のいずれかに記載のものである。   The light source device according to the invention of claim 11 is the light source device according to any one of claims 6 to 10, wherein the plate-like member holds the rod-like light source or the array light source at the other end of the plate-like member. is there.

請求項12の発明に係る光源装置は、前記複数の反射板支持部が、前記板状部材に対して角度を有している基端部分以外に、前記副走査方向に対して屈曲した部分を有するものである請求項4〜11のいずれかに記載のものである。   The light source device according to the invention of claim 12 is characterized in that the plurality of reflecting plate support portions are bent with respect to the sub-scanning direction in addition to the base end portion having an angle with respect to the plate-like member. It has what is in any one of Claims 4-11.

請求項13の発明に係る光源装置は、前記複数の反射板支持部が、前記主走査方向を対する副走査方向に対して屈曲した部分を有するものである請求項1又は2に記載のものである。   A light source device according to a thirteenth aspect of the present invention is the light source device according to the first or second aspect, wherein the plurality of reflecting plate support portions have portions bent with respect to the sub-scanning direction with respect to the main scanning direction. is there.

請求項14の発明に係る反射板支持構造は、画像読取装置に使用する反射板支持構造であって、主走査方向に延在する反射板と、前記主走査方向に沿って間欠的に配列され、前記反射板を支持する複数の反射板支持部とを備えたことを特徴とするものである。   A reflecting plate supporting structure according to a fourteenth aspect of the present invention is a reflecting plate supporting structure used in an image reading apparatus, and is arranged intermittently along the reflecting plate extending in the main scanning direction and the main scanning direction. And a plurality of reflecting plate support portions for supporting the reflecting plate.

請求項15の発明に係る反射板支持構造は、画像読取装置に使用する反射板支持構造であって、主走査方向に延在する反射板と、前記主走査方向に沿って、互いに所定の間隔を空けて配列され、前記反射板を支持する複数の反射板支持部とを備えたことを特徴とするものである。   A reflector support structure according to a fifteenth aspect of the invention is a reflector support structure used in an image reading apparatus, and a reflector extending in the main scanning direction and a predetermined distance from each other along the main scanning direction. And a plurality of reflecting plate support portions that support the reflecting plate.

請求項16の発明に係る反射板支持構造は、前記複数の反射板支持部が、前記反射板の反射面と反対の面側に配置され、
前記複数の反射鏡支持部を支持する板状部材と一体であり、
前記板状部材に対して、前記主走査方向を対する副走査方向に対して角度を有して起立し、
それぞれ前記板状部材の前記主走査方向に沿った一端を折り曲げて形成されたものである請求項14又は15に記載のものである。
In the reflector support structure according to the invention of claim 16, the plurality of reflector support parts are arranged on the surface side opposite to the reflective surface of the reflector,
It is integral with the plate-like member that supports the plurality of reflector support parts,
With respect to the plate-like member, it stands up with an angle with respect to the sub-scanning direction with respect to the main scanning direction,
The one according to claim 14 or 15, wherein each of the plate-like members is formed by bending one end along the main scanning direction.

請求項17の発明に係る反射板支持構造は、前記複数の反射板支持部が、前記板状部材に対して角度を有している基端部分以外に、前記副走査方向に対して屈曲した部分を有するものである請求項16に記載のものである。   In the reflection plate support structure according to the invention of claim 17, the plurality of reflection plate support portions are bent with respect to the sub-scanning direction other than a base end portion having an angle with respect to the plate-like member. It is a thing of Claim 16 which has a part.

請求項18の発明に係る反射板支持構造は、前記複数の反射板支持部が、前記主走査方向を対する副走査方向に対して屈曲した部分を有するものである請求項14又は15に記載のものである。   The reflecting plate supporting structure according to an eighteenth aspect of the present invention is the reflecting plate supporting structure according to claim 14 or 15, wherein the plurality of reflecting plate supporting portions have a bent portion with respect to the sub-scanning direction with respect to the main scanning direction. Is.

請求項19の発明に係る光源装置は、前記棒状光源が、放電灯であり、
前記アレイ光源が、発光部が前記主走査方向に複数配列され、前記副走査方向に光を放射するものである請求項1〜13のいずれかに記載のものである。
In the light source device according to the invention of claim 19, the rod-shaped light source is a discharge lamp,
The array light source according to any one of claims 1 to 13, wherein a plurality of light emitting sections are arranged in the main scanning direction and emit light in the sub scanning direction.

請求項20の発明に係る光源装置は、前記棒状光源が、発光部と、端面から入射された前記発光部からの光を長手方向に導光して、側面から出射する柱状の導光体とからなるものであり、
前記アレイ光源が、前記発光部が前記主走査方向に複数配列され、導光部材又は反射部材によって、前記副走査方向に光を放射するものである請求項1〜13のいずれかに記載のものである。
The light source device according to the invention of claim 20 is characterized in that the rod-shaped light source includes a light emitting portion, a columnar light guide that guides light from the light emitting portion incident from the end face in the longitudinal direction and emits the light from the side surface It consists of
14. The array light source according to claim 1, wherein a plurality of the light emitting units are arranged in the main scanning direction, and light is emitted in the sub scanning direction by a light guide member or a reflecting member. It is.

以上のように、請求項1〜13,19,20に係る発明によれば、複数の反射板支持部によって、反射板を支持しているので、部品点数が少なく、精度のよい反射板を有する光源装置を得ることができる。   As described above, according to the inventions according to claims 1 to 13, 19 and 20, since the reflecting plate is supported by the plurality of reflecting plate support portions, the number of components is small, and the reflecting plate is accurate. A light source device can be obtained.

請求項14〜18に係る発明によれば、複数の反射板支持部によって、反射板を支持しているので、部品点数が少なく、精度のよい反射板を有する反射板支持構造を得ることができる。   According to the invention which concerns on Claims 14-18, since the reflecting plate is supported by the several reflecting plate support part, there can be obtained the reflecting plate support structure which has a small number of parts and has a precise reflecting plate. .

この発明の実施の形態1に係る光源装置の導光体とその周辺の分解斜視図である。It is a disassembled perspective view of the light guide of the light source device which concerns on Embodiment 1 of this invention, and its periphery. この発明の実施の形態1に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の分解斜視図である。It is a disassembled perspective view of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の斜視図である。It is a perspective view of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の平面図(上面図)である。It is a top view (top view) of the light source device according to Embodiment 1 of the present invention. この発明の実施の形態1に係る光源装置の側面図(長手方向)である。It is a side view (longitudinal direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の側面図(短手方向)である。It is a side view (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(長手方向)である。It is sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の発光部周辺断面図(長手方向,光軸(主要な光路)付き)である。It is a light emission part periphery sectional drawing (longitudinal direction, with an optical axis (main optical path)) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向,光軸(主要な光路)付き)である。It is sectional drawing (with a transversal direction and an optical axis (main optical path)) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向)である。It is sectional drawing (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向)である。It is sectional drawing (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向)である。It is sectional drawing (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向)である。It is sectional drawing (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の断面図(短手方向)である。It is sectional drawing (short direction) of the light source device which concerns on Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置(反射板支持構造)の筐体となる板状部材の平面図(折り曲げ前)と光源装置(反射板支持構造)の断面図(短手方向)である。In the top view (before bending) of the plate-shaped member used as the housing | casing of the light source device (reflector support structure) which concerns on Embodiment 1 of this invention, and sectional drawing (short direction) of a light source device (reflector support structure) is there. この発明の実施の形態1に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device concerning Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 1 of this invention, and a light guide center vicinity sectional view (longitudinal direction). この発明の実施の形態1に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device concerning Embodiment 1 of this invention. この発明の実施の形態1に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device concerning Embodiment 1 of this invention. この発明の実施の形態2に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である(仮想的に、導光体,導光体ホルダー,ホルダーを載置)。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 2 of this invention (a light guide, a light guide holder, and a holder are mounted virtually). この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である(仮想的に、導光体,導光体ホルダー,ホルダーを載置)。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 2 of this invention (a light guide, a light guide holder, and a holder are mounted virtually). この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である(仮想的に、導光体,導光体ホルダー,ホルダーを載置)。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 2 of this invention (a light guide, a light guide holder, and a holder are mounted virtually). この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置のホルダーの断面図(長手方向)である。It is sectional drawing (longitudinal direction) of the holder of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置のホルダーの断面図(長手方向)である。It is sectional drawing (longitudinal direction) of the holder of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)と導光体中央付近断面図(長手方向)である。It is the light emission part periphery sectional drawing (longitudinal direction) and light guide center vicinity sectional drawing (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態2に係る光源装置の発光部周辺断面図(長手方向)である。It is a light emission part periphery sectional view (longitudinal direction) of the light source device which concerns on Embodiment 2 of this invention. この発明の実施の形態3に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である(仮想的に、導光体,導光体ホルダー,ホルダーを載置)。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 3 of this invention (a light guide, a light guide holder, and a holder are mounted virtually). この発明の実施の形態3に係る光源装置の発光部周辺断面図(短手方向)である。It is a light emission part periphery sectional view (short direction) of the light source device which concerns on Embodiment 3 of this invention. この発明の実施の形態3に係る光源装置のホルダー周辺側面図である。It is a holder periphery side view of the light source device which concerns on Embodiment 3 of this invention. この発明の実施の形態3に係る光源装置のホルダー周辺側面図である。It is a holder periphery side view of the light source device which concerns on Embodiment 3 of this invention. この発明の実施の形態3に係る光源装置の発光部周辺断面図(短手方向)である。It is a light emission part periphery sectional view (short direction) of the light source device which concerns on Embodiment 3 of this invention. この発明の実施の形態3に係る光源装置のホルダー周辺側面図である。It is a holder periphery side view of the light source device which concerns on Embodiment 3 of this invention. この発明の実施の形態3に係る光源装置の筐体となる板状部材の平面図(折り曲げ前)である(仮想的に、導光体,導光体ホルダー,ホルダーを載置)。It is a top view (before bending) of the plate-shaped member used as the housing | casing of the light source device which concerns on Embodiment 3 of this invention (a light guide, a light guide holder, and a holder are mounted virtually).

本願においては、本願に係る光源装置及び反射板支持構造を組み込む画像読取装置(画像形成装置)の主走査方向と副走査方向(搬送方向)とを、それぞれ、光源装置及び反射板支持構造の長手方向と短手方向とする。なお、光源装置及び反射板支持構造の筐体の長辺方向が長手方向に対応し、光源装置及び反射板支持構造の筐体の短辺方向が短手方向に対応する。主走査方向は、本願に係る光源装置が線状光源として延びる方向ともいえる。つまり、主走査方向(長手方向,長辺方向)、副走査方向(短手方向,短辺方向)である。これは、光源装置及び反射板支持構造の筐体が正方形である場合を考慮しているためである。なお、本願における図1〜図47に示す矢印Xが主走査方向(長手方向,長辺方向)を指し、矢印Yが副走査方向(短手方向,短辺方向)を指し、矢印Yが光源装置及び反射板支持構造の厚み方向(高さ方向)を指している。但し、図17においては、反射板支持構造の設置位置の一例として矢印X,Y,Zを付している。また、図30及び図31においては、実施の形態3に対応する矢印X,Y,Zを括弧内に付している。つまり、括弧外の矢印X,Y,Zが、実施の形態2に対応するものである。   In the present application, the main scanning direction and the sub-scanning direction (conveying direction) of the image reading apparatus (image forming apparatus) incorporating the light source device and the reflecting plate support structure according to the present application are respectively defined as the lengths of the light source device and the reflecting plate support structure. Direction and short direction. The long side direction of the casing of the light source device and the reflector support structure corresponds to the longitudinal direction, and the short side direction of the casing of the light source device and the reflector support structure corresponds to the short direction. The main scanning direction can also be said to be a direction in which the light source device according to the present application extends as a linear light source. That is, the main scanning direction (longitudinal direction, long side direction) and the sub-scanning direction (short side direction, short side direction). This is because the case where the casing of the light source device and the reflector support structure is square is taken into consideration. 1 to 47 in the present application, the arrow X indicates the main scanning direction (longitudinal direction, long side direction), the arrow Y indicates the sub scanning direction (short direction, short side direction), and the arrow Y indicates the light source. It refers to the thickness direction (height direction) of the device and the reflector support structure. However, in FIG. 17, arrows X, Y, and Z are attached as an example of the installation position of the reflector support structure. In FIGS. 30 and 31, arrows X, Y, and Z corresponding to the third embodiment are given in parentheses. That is, the arrows X, Y, and Z outside the parentheses correspond to the second embodiment.

実施の形態1.
以下、この発明の実施の形態1について図1〜図21を用いて説明する。図6(a)は図5の点線矢印Aから見た光源装置の側面図、図6(b)は図5の点線矢印Bから見た光源装置の側面図、図7(a)は図5の点線矢印Cから見た光源装置の側面図、図7(b)は図5の点線矢印Dから見た光源装置の側面図、図8は図5の一点鎖線EFによる光源装置の断面図、図9は図5の一点鎖線EFによる光源装置の発光部周辺断面図、図11は図5の一点鎖線GHによる光源装置の断面図、図11(a)は図5の一点鎖線GHによる光源装置の断面図、図11(b)は図5の一点鎖線IJによる光源装置の断面図である。
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIGS. 6A is a side view of the light source device viewed from the dotted arrow A in FIG. 5, FIG. 6B is a side view of the light source device viewed from the dotted arrow B in FIG. 5, and FIG. FIG. 7B is a side view of the light source device viewed from the dotted line arrow D in FIG. 5, FIG. 8 is a cross-sectional view of the light source device along the dashed line EF in FIG. 9 is a cross-sectional view of the periphery of the light emitting unit of the light source device taken along the dashed-dotted line EF in FIG. 5, FIG. 11 is a cross-sectional view of the light source device taken along the dashed-dotted line GH in FIG. FIG. 11B is a cross-sectional view of the light source device taken along one-dot chain line IJ in FIG.

図1〜図21において、1は可視光又は可視光外の波長の光若しくはその両方を発するLEDなど点光源によって構成される発光素子、2は上面に発光素子が少なくとも一つ形成された基板(LED基板)、3は発光素子1及び基板からなる発光部、4は端面4a(光入射部4a)から入射された発光部3(発光素子1)からの光を長手方向(画像読取装置の主走査方向、単に、主走査方向と称する)に導光して、側面4b(光出射部4b)から出射する柱状の導光体である。導光体4は透明な樹脂製のものが好適である。導光体4には主走査方向に亘って少なくとも一列の光散乱パターン4cが、連続的又は間欠的に形成されている。本願では、二列の場合を用いて説明する。なお、光出射部4bは、導光体4における光散乱パターン4cと対向する位置を示すものである。よって、光散乱パターン4cが二列形成された場合は、光出射部4bも主走査方向に二列並ぶことになるが、光散乱パターン4c同士の位置関係によっては、二列の光出射部4bの領域の一部又は全部が重複することもある。本願では、光出射部4bへ符号の添付を省略している図、光散乱パターン4cの図示を省略している図がある。光散乱パターン4cは少なくとも画像読取装置の主走査方向の有効読取領域に対応する部分に少なくとも形成されている。4dは導光体4の中央付近の下部に形成された突起部である。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   1 to 21, reference numeral 1 denotes a light emitting element constituted by a point light source such as an LED that emits visible light or light having a wavelength outside visible light, or both, and 2 denotes a substrate on which at least one light emitting element is formed on an upper surface ( LED substrate), 3 is a light-emitting unit composed of the light-emitting element 1 and the substrate, and 4 is a light beam from the light-emitting unit 3 (light-emitting element 1) incident from the end face 4a (light incident unit 4a) in the longitudinal direction (main of the image reading apparatus) It is a columnar light guide that is guided in the scanning direction (simply referred to as the main scanning direction) and emitted from the side surface 4b (light emitting portion 4b). The light guide 4 is preferably made of a transparent resin. The light guide 4 is formed with at least one row of light scattering patterns 4c continuously or intermittently in the main scanning direction. In the present application, the case of two rows will be described. In addition, the light emission part 4b shows the position facing the light-scattering pattern 4c in the light guide 4. FIG. Therefore, when the light scattering patterns 4c are formed in two rows, the light emitting portions 4b are also arranged in two rows in the main scanning direction. However, depending on the positional relationship between the light scattering patterns 4c, the two rows of light emitting portions 4b are arranged. Some or all of these areas may overlap. In the present application, there are a diagram in which the reference numeral is omitted from the light emitting portion 4b and a diagram in which the illustration of the light scattering pattern 4c is omitted. The light scattering pattern 4c is formed at least in a portion corresponding to an effective reading area in the main scanning direction of the image reading apparatus. Reference numeral 4 d denotes a protrusion formed at the lower portion near the center of the light guide 4. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図1〜図21において、5は端面4aを含む導光体4の端部を端面4aの少なくとも一部(発光素子1からの光が入射するために必要な部分)と光が出射する部分の側面とを除き、覆う導光体ホルダーである。導光体ホルダー5における導光体4と対向する部分は白色などの反射率がよい色を有していることが望ましいが、これに限るものではない。5aは導光体ホルダー5が導光体4を係止する導光体係止部、5bは導光体ホルダー5の長手方向の両端部にそれぞれ形成された第1突起部、5cは導光体ホルダー5の長手方向の中央付近に形成された第2突起部、5dは突起部4dが挿入される嵌合孔(導光体4用)、6は発光部3(発光素子1)からの光をフィルタリングする、又は、発光部3(発光素子1)からの光から励起光(変換されなかった波長の光も含む複合光であってもよい)を生成する光学フィルタである。光学フィルタ6は、ガラスやPET樹脂シートなどを基材として光学特性を変換するものである。例えば、光学フィルタ6は、蛍光体などを用いて励起光を得るものや、バンドパスフィルタなどの不要な波長を除去するものである。光学フィルタ6はホルダー7に接着などにより固定されている。発光素子1が目的とする波長以外の副次的光学波長を持つ場合は、不要な波長帯域を阻止する働きを持つ光学フィルタ6を光路に挿入する必要がある。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   1 to 21, reference numeral 5 denotes an end of the light guide 4 including the end face 4 a, at least a part of the end face 4 a (a part necessary for the light from the light emitting element 1 to enter) and a part from which the light is emitted. The light guide holder is covered except for the side surface. The portion of the light guide holder 5 that faces the light guide 4 desirably has a color with good reflectance such as white, but is not limited thereto. 5a is a light guide locking portion where the light guide holder 5 locks the light guide 4, and 5b is a first protrusion formed at both ends in the longitudinal direction of the light guide holder 5, and 5c is a light guide. Second projections formed near the center of the body holder 5 in the longitudinal direction, 5d is a fitting hole (for the light guide 4) into which the projection 4d is inserted, and 6 is from the light emitting unit 3 (light emitting element 1). It is an optical filter that filters light or generates excitation light (may be composite light including light having a wavelength that has not been converted) from light from the light emitting unit 3 (light emitting element 1). The optical filter 6 converts optical characteristics using glass or a PET resin sheet as a base material. For example, the optical filter 6 is for obtaining excitation light using a phosphor or the like, or for removing unnecessary wavelengths such as a bandpass filter. The optical filter 6 is fixed to the holder 7 by adhesion or the like. When the light emitting element 1 has a secondary optical wavelength other than the target wavelength, it is necessary to insert an optical filter 6 having a function of blocking an unnecessary wavelength band into the optical path. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図1〜図21において、8は導光体ホルダー5及びホルダー7を支持する板状部材(板金加工によるものが好適)である。板状部材8は、間接的に導光体4及び光学フィルタ6を支持している(基板2が板状部材8に接触していない場合は、基板2も板状部材8に間接的に支持されているといえる)。8aは板状部材8が折り曲げられる前の平板状の板状部材(金属製)、8bは第1突起部5bが挿入される長孔(長手方向に延びる孔)、8cは第2突起部5cが挿入される嵌合孔(導光体ホルダー5用)、9は基板2の熱を板状部材8へ伝える伝熱体(シート状以外のグリース状のものも含む、例えば熱伝導性のコンパウンドなど)、10は板状部材8とホルダー7とを間に基板2と伝熱体9とを挟みこんで締結するネジである。ネジ10の図示を省略した図もある。ホルダー7,基板2,伝熱体9(シート状のものの場合)にはネジ10用のネジ穴が穿たれている。基板2,伝熱体9におけるネジ穴は溝を切っていない単なる連通孔でもよい。伝熱体9を省略してもよい。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   1 to 21, reference numeral 8 denotes a plate-like member (preferably made by sheet metal processing) that supports the light guide holder 5 and the holder 7. The plate-like member 8 indirectly supports the light guide 4 and the optical filter 6 (if the substrate 2 is not in contact with the plate-like member 8, the substrate 2 is also indirectly supported by the plate-like member 8. It can be said that. 8a is a flat plate-like member (made of metal) before the plate-like member 8 is bent, 8b is a long hole (a hole extending in the longitudinal direction) into which the first protrusion 5b is inserted, and 8c is a second protrusion 5c. Fitting hole (for light guide holder 5), 9 is a heat transfer body (including a grease-like material other than a sheet, for example) that transfers the heat of substrate 2 to plate-like member 8, for example, a heat conductive compound 10 is a screw that fastens the plate-like member 8 and the holder 7 with the substrate 2 and the heat transfer body 9 interposed therebetween. In some cases, the screw 10 is not shown. The holder 7, the substrate 2, and the heat transfer body 9 (in the case of a sheet) are provided with screw holes for screws 10. The screw holes in the substrate 2 and the heat transfer body 9 may be simple communication holes that are not cut. The heat transfer body 9 may be omitted. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図1〜図21において、11は導光体4と長手方向に平行に配列され、導光体4から出射される副光(詳細は後述する)を反射し、画像読取装置の原稿設置台方向(原稿や紙幣などの画像読取装置の読取対象が存在する方向)に照射するものであって、金属蒸着面などで構成され、長手方向に延在し、薄い板状あるいはシート状のものである反射板(ミラー)、801は反射板11を支持する板状部材8が折り曲げられ形成された反射板支持部である。反射板支持部801は、主走査方向に沿って間欠的に複数配列され、反射板11を支持している。反射板支持部801は傾斜しているので斜面部801ともいえる。反射板11は反射板支持部801に接着などにより固定されており、導光体4及び原稿設置台(原稿や紙幣などの画像読取装置の読取対象が存在する位置)に対して適切な距離と角度を保っている。802は導光体ホルダー5を押える板状部材8が折り曲げられ形成された導光体ホルダー固定部である。導光体ホルダー固定部802は、主走査方向(長手方向)に沿って間欠的に複数配列される(一つでもよい。導光体ホルダー固定部802と板状部材8の底面(矩形形状を有する底部)とにより、板状部材8は導光体ホルダー5を挟み込んで保持する。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   1 to 21, 11 is arranged in parallel with the light guide 4 in the longitudinal direction, reflects the secondary light (details will be described later) emitted from the light guide 4, and is directed to the document placement table of the image reading apparatus. Irradiate (in the direction in which a reading target of an image reading device such as a document or banknote exists), which is composed of a metal vapor deposition surface or the like, extends in the longitudinal direction, and is a thin plate or sheet. A reflecting plate (mirror) 801 is a reflecting plate support portion formed by bending a plate-like member 8 that supports the reflecting plate 11. A plurality of reflector support parts 801 are intermittently arranged along the main scanning direction and support the reflector 11. Since the reflector support part 801 is inclined, it can be said to be an inclined part 801. The reflecting plate 11 is fixed to the reflecting plate support portion 801 by bonding or the like, and has an appropriate distance from the light guide 4 and the document setting table (a position where a reading target of an image reading device such as a document or a bill exists). Keeping the angle. Reference numeral 802 denotes a light guide holder fixing portion formed by bending a plate-like member 8 that holds the light guide holder 5. A plurality of light guide holder fixing portions 802 are intermittently arranged along the main scanning direction (longitudinal direction) (there may be one. The light guide holder fixing portion 802 and the bottom surface of the plate-like member 8 (with a rectangular shape). Plate-like member 8 sandwiches and holds the light guide holder 5. In the figure, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図1〜図21において、803は板状部材8の主走査方向(長手方向)に沿った一端のうち、複数の反射鏡支持部801以外の部分が、それぞれ板状部材8と連続する複数の板状端部(反射板11側)、804は板状部材8の主走査方向(長手方向)に沿った一端のうち、導光体ホルダー固定部802以外の部分が、それぞれ板状部材8と連続する複数の板状端部(導光体ホルダー5側)、805は光源装置の筐体である板状部材8を画像読取装置本体(或いは、画像読取装置のキャリッジ)に取り付けるための接続インターフェース手段であるネジ穴、806はネジ10を通すネジ穴を有し、板状部材8に形成され、導光体ホルダー5,発光部3,伝熱体9がネジ10によって締結される締結部である。キャリッジの図示は省略する。なお、ネジ穴805の周辺の板状部材8とネジ穴805とを廃して、締結部806を板状部材8の端部(短手方向の側面)としてもよい。807は板状部材8に形成された画像読取装置の読取対象(原稿、紙幣など)に照射された光の反射光が通過する反射光通過孔(アパーチャ)である。なお、読取対象の搬送方向は、光源装置の短手方向(画像読み取り装置の副走査方向、単に、副走査方向と称する)である。主走査方向と副走査方向は交差しており、一般的には直交していることが多い。808は板状端部803の先端が一体となった一体端部である。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   1 to 21, reference numeral 803 denotes a plurality of portions of the one end along the main scanning direction (longitudinal direction) of the plate-like member 8, and portions other than the plurality of reflecting mirror support portions 801 are respectively continuous with the plate-like member 8. The plate-like end portion (reflecting plate 11 side) and 804 are the ends of the plate-like member 8 along the main scanning direction (longitudinal direction) except for the light guide holder fixing portion 802, respectively. A plurality of continuous plate-like end portions (on the light guide holder 5 side), 805 is a connection interface for attaching the plate-like member 8 which is a housing of the light source device to the image reading device main body (or the carriage of the image reading device). A screw hole 806 as a means has a screw hole through which the screw 10 is passed, is formed in the plate-like member 8, and is a fastening part to which the light guide holder 5, the light emitting part 3, and the heat transfer body 9 are fastened by the screw 10. is there. The illustration of the carriage is omitted. The plate member 8 and the screw hole 805 around the screw hole 805 may be eliminated, and the fastening portion 806 may be used as an end portion (side surface in the short direction) of the plate member 8. Reference numeral 807 denotes a reflected light passage hole (aperture) through which reflected light of light irradiated to a reading target (original, bill, etc.) of the image reading apparatus formed on the plate-like member 8 passes. The conveyance direction of the reading target is the short direction of the light source device (the sub-scanning direction of the image reading device, simply referred to as the sub-scanning direction). The main scanning direction and the sub-scanning direction intersect each other and are generally orthogonal. Reference numeral 808 denotes an integral end portion in which the tips of the plate-like end portions 803 are integrated. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

実施の形態1に係る光源装置における導光体4の端面4aの形状や導光体4の長手方向の断面の形状は、図1〜図21に示すような円柱状のものでなくても、多角形状でもひょうたん状でもよいし、歪な形でもよい。もちろん、これらの組み合わせでもよい。同じく、ホルダー7に挿入する部分の導光体ホルダー5の外形や、導光体ホルダー5が挿入される部分のホルダー7の内形も、円柱状のものでなくても、多角形状でもひょうたん状でもよいし、歪な形でもよい。もちろん、これらの組み合わせでもよい。導光体ホルダー5とホルダー7との関係は、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触して導光体ホルダー5が摺動可能であるか、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触せずに、導光体ホルダー5が伸縮可能であるかのいずれかであればよい。詳細は後述するが、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触しない場合でも、発光部3からの発せられた光の大部分は、ホルダー7と導光体ホルダー5との隙間から漏れないようにする必要がある。   Even if the shape of the end surface 4a of the light guide 4 and the shape of the longitudinal section of the light guide 4 in the light source device according to Embodiment 1 are not cylindrical as shown in FIGS. It may be polygonal, gourd or distorted. Of course, a combination of these may be used. Similarly, the outer shape of the light guide holder 5 at the portion to be inserted into the holder 7 and the inner shape of the holder 7 at the portion into which the light guide holder 5 is inserted are not cylindrical, but are polygonal or gourd. However, it may be a distorted shape. Of course, a combination of these may be used. The relationship between the light guide holder 5 and the holder 7 is that the portion of the light guide holder 5 inserted into the holder 7 is in contact with the holder 7 so that the light guide holder 5 can be slid. The light guide holder 5 can be expanded or contracted without the portion inserted into the holder 7 being in contact with the holder 7. Although details will be described later, even if the portion of the light guide holder 5 inserted into the holder 7 does not come into contact with the holder 7, most of the light emitted from the light emitting unit 3 is the holder 7 and the light guide holder 5. It is necessary not to leak from the gap.

導光体ホルダー5は、導光体4を保持するだけなく、発光部3及び導光体4からの意図しない光を抑制する働きを持つ。導光体ホルダー5は板状部材8に次の3点で筐体(板状部材8)と適切な位置をとる。3点とは、すなわち、二つの第1突起部5bと二つの長孔8b,第2突起部5cと嵌合孔8cである。導光体ホルダー5は板状部材8の全長より短く、導光体ホルダー5の端面とホルダー7の端面は対向しており、そのギャップ長は導光体ホルダー5の温度特性による伸び分より広い。前述のとおり、導光体4は長手方向には完全に固定されていないため、導光体ホルダー5が温度変化による伸縮をした場合も反りがなく短手方向に導光体4が保持される。導光体ホルダー5は端部で導光体4の全周囲を保持し、中央部では光出射部4bを露出させる開口(導光体ホルダー5)を持つ。導光体ホルダー5は端部における導光体4の全周囲を保持する部分がホルダー7に挿入される。   The light guide holder 5 not only holds the light guide 4 but also functions to suppress unintended light from the light emitting unit 3 and the light guide 4. The light guide holder 5 is positioned on the plate-like member 8 at an appropriate position with respect to the housing (plate-like member 8) at the following three points. The three points are the two first protrusions 5b, the two long holes 8b, the second protrusion 5c, and the fitting hole 8c. The light guide holder 5 is shorter than the total length of the plate-like member 8, the end face of the light guide holder 5 is opposed to the end face of the holder 7, and the gap length is wider than the elongation due to the temperature characteristics of the light guide holder 5. . As described above, since the light guide 4 is not completely fixed in the longitudinal direction, the light guide 4 is held in the short direction without warping even when the light guide holder 5 expands and contracts due to temperature change. . The light guide holder 5 holds the entire periphery of the light guide 4 at the end, and has an opening (light guide holder 5) that exposes the light emitting portion 4b at the center. A portion of the light guide holder 5 that holds the entire periphery of the light guide 4 at the end is inserted into the holder 7.

図1は実施の形態1に係る光源装置において、光源装置の筐体である板状部材8に導光体ホルダー5を載置する前の光源装置を示している。図1に示すように、導光体ホルダー5は、導光体4の端面4aの周囲を覆う孔が長手方向の両端部に形成されている。この端面4aを覆う孔の部分の導光体ホルダー5がホルダー7に挿入することができる(実施の形態1の場合)。ホルダー7は、連通する第1開口と第2開口とを有し、ホルダー7の第1開口側に導光体ホルダー5の端部及び導光体ホルダー5に支持された導光体4を長手方向で摺動可能に保持するものといえる。なお、本願では、導光体4及び導光体ホルダー5は、膨脹率が同じ又は同程度の樹脂を使用する場合を前提に説明を行う。   FIG. 1 shows a light source device before the light guide holder 5 is placed on a plate-like member 8 that is a housing of the light source device in the light source device according to the first embodiment. As shown in FIG. 1, the light guide holder 5 is formed with holes covering the periphery of the end face 4 a of the light guide 4 at both ends in the longitudinal direction. The light guide holder 5 in the hole covering the end face 4a can be inserted into the holder 7 (in the case of the first embodiment). The holder 7 has a first opening and a second opening that communicate with each other, and the light guide 4 supported by the end of the light guide holder 5 and the light guide holder 5 is elongated on the first opening side of the holder 7. It can be said that it is slidable in the direction. In the present application, the light guide 4 and the light guide holder 5 will be described on the assumption that resins having the same or similar expansion rate are used.

実施の形態1に係る光源装置の導光体4は、突起部4dが、導光体ホルダー5の嵌合孔5dに挿入されて嵌合され、両端部が、それぞれ導光体ホルダー5の両端部にある孔の内部に配置される。また、導光体係止部5aは導光体4の長手方向の伸縮を固定するものではなく、導光体4の長手方向の反りや撓みを制限するものであり、導光体4が導光体ホルダー5から外れないようにするためのものである。導光体4及び導光体ホルダー5は、互いに嵌合しあえる機構があればよいので、突起部4dと嵌合孔5dとの関係が逆転させて、導光体4に嵌合孔を形成し、導光体ホルダー5に突起部を形成してもよい。   In the light guide 4 of the light source device according to Embodiment 1, the protrusions 4d are inserted and fitted into the fitting holes 5d of the light guide holder 5, and both ends are both ends of the light guide holder 5. It is arranged inside the hole in the part. Further, the light guide locking portion 5a does not fix the expansion and contraction of the light guide 4 in the longitudinal direction, but restricts the warping and bending of the light guide 4 in the longitudinal direction. This is to prevent the light body holder 5 from coming off. Since the light guide 4 and the light guide holder 5 only need to have a mechanism that can be fitted to each other, the relationship between the protrusion 4d and the fitting hole 5d is reversed to form a fitting hole in the light guide 4. However, a protrusion may be formed on the light guide holder 5.

図1に示すように、ホルダー7における導光体ホルダー5が挿入される面(第1開口側)の反対の面(第2開口側)に基板2と伝熱体9の保持するピンが二つ形成され、これらのピンに対応するように、基板2と伝熱体9とにそれぞれピン穴が形成されている。基板2と伝熱体9とを重ねて、ピン穴に、ホルダー7のピンを通して、板状部材8の締結部6にネジ10で、基板2,伝熱体9,ホルダー7を固定することで、実施の形態1に係る光源装置は、ホルダー7の第2開口に発光素子1(発光部3)を配置し、ホルダー7の第1開口及び第2開口の間に光学フィルタ6を発光素子1(発光部3)と所定の間隔を維持して支持している状態となる。詳細は、後述の図3を用いた説明にて行なう。本願では、導光体4の両端面側に発光部3及びホルダー7が形成されたものを用いて説明するが、導光体4の片方の端面側にのみ発光部3及びホルダー7を形成してよい。この場合、もちろん発光部3がない方の導光体4の端部に、第2開口が封鎖され、発光部3がない状態のホルダー7を配置してもよい。また、この状態のホルダー7の内部(導光体4の端面を含む)に、光学フィルタ10の代わりに反射部材を形成してもよい。   As shown in FIG. 1, there are two pins held by the substrate 2 and the heat transfer body 9 on the surface (second opening side) opposite to the surface (first opening side) where the light guide holder 5 is inserted in the holder 7. Pin holes are respectively formed in the substrate 2 and the heat transfer body 9 so as to correspond to these pins. By stacking the substrate 2 and the heat transfer body 9, passing the pins of the holder 7 through the pin holes, and fixing the substrate 2, the heat transfer body 9, and the holder 7 to the fastening portion 6 of the plate-like member 8 with the screws 10. In the light source device according to the first embodiment, the light emitting element 1 (light emitting unit 3) is disposed in the second opening of the holder 7, and the optical filter 6 is disposed between the first opening and the second opening of the holder 7. The light emitting unit 3 and the light emitting unit 3 are supported while maintaining a predetermined distance. Details will be described with reference to FIG. In the present application, the light guide 4 is described using the light emitting section 3 and the holder 7 formed on both end faces. However, the light emitting section 3 and the holder 7 are formed only on one end face of the light guide 4. It's okay. In this case, of course, the holder 7 in a state in which the second opening is blocked and the light emitting unit 3 is not provided may be disposed at the end of the light guide 4 that does not have the light emitting unit 3. In addition, a reflecting member may be formed inside the holder 7 in this state (including the end face of the light guide 4) instead of the optical filter 10.

図2は実施の形態1に係る光源装置の筐体となる板状部材8の折り曲げ前の板状部材8aを示している。板状部材8はアルミニウムなどの放熱性のよい板金によって形成されている。板状部材8aには、長孔8b,嵌合孔8c,反射板支持部801(板状端部803),導光体ホルダー固定部802(板状端部804),ネジ穴805,締結部806,反射光通過孔807を形成するための切り欠きや穴(孔)が設けられている。図2に記載の一点鎖線及び二点鎖線に沿って板状部材8aを折り曲げることで、実施の形態1に係る光源装置の筐体となる板状部材8となる。詳しくは、図2に示す板状部材8aを二点鎖線に沿って谷折りする。同じく、図2に示す板状部材8aを一点鎖線に沿って谷折りするが、反射板支持部801に相当する部分は、反射板11を支持するために、板状部材8aの外周寄り側の一点鎖線は山折りとする。谷折り及び山折りという表現は、図2に示す板状部材8aの面(表面)側に対しての相対的な表現であるので、図2に示す板状部材8aの面(表面)の反対面(裏面)から見た場合は、谷折りと山折りとの折り方が逆転する。   FIG. 2 shows a plate-like member 8a before bending of the plate-like member 8 that becomes the casing of the light source device according to the first embodiment. The plate-like member 8 is formed of a sheet metal with good heat dissipation such as aluminum. The plate-like member 8a includes a long hole 8b, a fitting hole 8c, a reflector support portion 801 (plate-like end portion 803), a light guide holder fixing portion 802 (plate-like end portion 804), a screw hole 805, and a fastening portion. 806, notches and holes (holes) for forming the reflected light passage hole 807 are provided. By bending the plate member 8a along the one-dot chain line and the two-dot chain line shown in FIG. 2, the plate member 8 serving as the casing of the light source device according to the first embodiment is obtained. Specifically, the plate-like member 8a shown in FIG. 2 is valley-folded along the two-dot chain line. Similarly, the plate-like member 8a shown in FIG. 2 is valley-folded along the alternate long and short dash line, but the portion corresponding to the reflector support portion 801 is located on the outer peripheral side of the plate-like member 8a in order to support the reflector 11. The alternate long and short dash line is a mountain fold. Since the expressions “valley fold” and “mountain fold” are relative expressions to the surface (front surface) side of the plate-like member 8a shown in FIG. 2, they are opposite to the surface (front surface) of the plate-like member 8a shown in FIG. When viewed from the front surface (back surface), the folding method between the valley fold and the mountain fold is reversed.

さらに、詳細に説明すると、図2に示す二点鎖線部で板状部材8aを内側(図面に対して手前側)に折り曲げることにより、箱型で、副走査方向(短辺方向)の断面が、コ字状の筐体(板状部材8)が形成される。すなわち、折り曲げることにより、矩形形状を有する底部(底面)と、この底部の一方の長辺に、内側に折り曲げられた長辺側壁部(板状端部803,板状端部804,一体端部808)を有し、底部の他方の長辺に、底部の短手方向から所定の角度で内側に折り曲げられ、底部の短辺に内側に折り曲げられた短辺側壁部(締結部806)を有する。なお、この短辺側壁部に連続し、長手方向に折り曲げられ、斜面部801(反射板支持部801)に対し長辺側壁部と反対の方向に対向して長手方向に延在する放熱板を形成してもよい(図示は省略するが、反射板11の反射面の反対の面側に放熱板を形成する)。また、前述のとおり、ネジ穴805の周辺の板状部材8とネジ穴805とを廃して、短辺側壁部(締結部806)を板状部材8の端部(短手方向の側面)としてもよい(図示は省略)。   More specifically, by bending the plate-like member 8a inward (front side with respect to the drawing) at the two-dot chain line portion shown in FIG. 2, the cross section in the sub-scanning direction (short side direction) is box-shaped. A U-shaped casing (plate-like member 8) is formed. That is, by bending, a bottom portion (bottom surface) having a rectangular shape and a long side wall portion (plate-like end portion 803, plate-like end portion 804, integral end portion) bent inwardly on one long side of the bottom portion 808), and has a short side wall portion (fastening portion 806) which is bent inward at a predetermined angle from the short side direction of the bottom portion and is bent inward to the short side of the bottom portion on the other long side of the bottom portion. . A heat radiating plate which is continuous with the short side wall portion, is bent in the longitudinal direction, and extends in the longitudinal direction so as to face the slope portion 801 (reflecting plate support portion 801) in a direction opposite to the long side wall portion. It may be formed (not shown, but a heat radiating plate is formed on the side opposite to the reflecting surface of the reflecting plate 11). Further, as described above, the plate-like member 8 and the screw hole 805 around the screw hole 805 are eliminated, and the short side wall portion (fastening portion 806) is used as the end portion (side surface in the short direction) of the plate-like member 8. (The illustration is omitted).

図3を用いて、導光体ホルダー5及びホルダー7を折り曲げ後の板状部材8へ固定する説明を行う。まず、図3においては、導光体ホルダー5の陰になって直接的には図示されていない導光体ホルダー5の第2突起部5cを板状部材8の嵌合孔8cに挿入して嵌合させる。その際に、同時に導光体ホルダー5の第1突起部5bを板状部材8の長孔8bに挿入する。なお、第1突起部5bは、長手方向に移動可能に長孔8bへ挿入されている。これにより、導光体ホルダー5の長手方向の位置が光源装置の主走査方向に沿った状態で保持することができる。導光体ホルダー5及び板状部材8は、互いに嵌合しあえる機構があればよいので、第2突起部5cと嵌合孔8cとの関係が逆転させて、導光体ホルダー5に嵌合孔を形成し、板状部材8に第2突起部を形成してもよい。これは、第1突起部5bと長孔8bとの関係においても同じことがいえる。   A description will be given of fixing the light guide holder 5 and the holder 7 to the bent plate-like member 8 with reference to FIG. First, in FIG. 3, the second protrusion 5 c of the light guide holder 5, which is not shown directly behind the light guide holder 5, is inserted into the fitting hole 8 c of the plate-like member 8. Fit. At that time, the first protrusion 5 b of the light guide holder 5 is simultaneously inserted into the long hole 8 b of the plate-like member 8. In addition, the 1st projection part 5b is inserted in the long hole 8b so that the movement to a longitudinal direction is possible. Thereby, the position of the light guide holder 5 in the longitudinal direction can be held in a state along the main scanning direction of the light source device. Since the light guide holder 5 and the plate-like member 8 only need to have a mechanism that can be fitted to each other, the relationship between the second protrusion 5c and the fitting hole 8c is reversed to fit the light guide holder 5. A hole may be formed to form the second protrusion on the plate-like member 8. The same applies to the relationship between the first protrusion 5b and the long hole 8b.

そして、ネジ10を用いて、ホルダー7を板状部材8の締結部806に固定する。この際、基板2及び伝熱体9もホルダー7とネジ10によって共締めされる。よって、基板2で生じた熱が、伝熱体9を介して効率よく板状部材8(締結部806)へ伝わり、基板2で生じた熱が排熱される。例えば、伝熱体9は熱を伝える働きを持つシート状のシリコーンシートのようなもので形成され、密着性と熱伝導性が良いものである。前述のとおり、伝熱体9は基板2と締結部806の間に配置する。板状部材8は発光部3(発光素子1,基板2)の熱を逃がす役割を持つ。発光部3から発生した熱は基板2を通じて伝熱体9を介し、締結部806に伝えられる。締結部806からは板状部材8全体に熱が分散される。締結部806からは板状部材8全体に熱が分散される。   Then, the holder 7 is fixed to the fastening portion 806 of the plate-like member 8 using the screw 10. At this time, the substrate 2 and the heat transfer body 9 are also fastened together with the holder 7 and the screw 10. Therefore, the heat generated in the substrate 2 is efficiently transmitted to the plate-like member 8 (fastening portion 806) through the heat transfer body 9, and the heat generated in the substrate 2 is exhausted. For example, the heat transfer body 9 is formed of a sheet-like silicone sheet having a function of transferring heat, and has good adhesion and thermal conductivity. As described above, the heat transfer body 9 is disposed between the substrate 2 and the fastening portion 806. The plate-like member 8 has a role of releasing heat of the light emitting unit 3 (light emitting element 1, substrate 2). The heat generated from the light emitting unit 3 is transmitted to the fastening unit 806 through the substrate 2 and the heat transfer body 9. Heat is dispersed from the fastening portion 806 to the entire plate member 8. Heat is dispersed from the fastening portion 806 to the entire plate member 8.

図4〜図7は、実施の形態1に係る光源装置を示している。つまり、図4〜図7は導光体ホルダー5及びホルダー7を折り曲げ後の板状部材8へ固定した後を示している。なお、発光部3(基板2)が締結される締結部806は、板状部材8(板状部材8a)の長手方向に折れ曲がった部分に、直接又は伝熱体9を介して締結されるものであるといえる。図4〜図7では、厚み方向(高さ方向)において、板状端部803と板状端部804とが導光体ホルダー5,ホルダー7,反射板11よりも低背であるが、板状部材8(板状部材8a)の寸法を変更して、板状端部803と板状端部804を導光体ホルダー5,ホルダー7,反射板11よりも高くしてよい。   4 to 7 show the light source device according to the first embodiment. That is, FIGS. 4 to 7 show the light guide holder 5 and the holder 7 after being fixed to the plate member 8 after being bent. In addition, the fastening part 806 to which the light emission part 3 (board | substrate 2) is fastened is fastened to the part bent in the longitudinal direction of the plate-shaped member 8 (plate-shaped member 8a) directly or via the heat exchanger 9. You can say that. 4 to 7, in the thickness direction (height direction), the plate-like end portion 803 and the plate-like end portion 804 are shorter than the light guide holder 5, the holder 7, and the reflection plate 11. The size of the plate-like member 8 (plate-like member 8a) may be changed so that the plate-like end portion 803 and the plate-like end portion 804 are higher than the light guide holder 5, the holder 7, and the reflecting plate 11.

図8は、実施の形態1に係る光源装置における導光体4の長手方向の中心付近の断面図である。図8に示すように、導光体4は突起部4dにより導光体4の中心付近を導光体ホルダー5(嵌合孔5d)によって固定されているが、導光体4の両端部は導光体ホルダー5の孔に挿入されているので、温度変化による導光体4の長手方向に伸縮は導光体ホルダー5によって制限されない。導光体ホルダー5は、第2突起部5cを介して導光体ホルダー5の中心付近を板状部材8(嵌合孔8c)によって固定されているが、第1突起部5bが長孔8bに挿入されているために、温度変化による導光体ホルダー5の長手方向に伸縮は板状部材8によって制限されない。   FIG. 8 is a cross-sectional view around the center in the longitudinal direction of the light guide 4 in the light source device according to Embodiment 1. FIG. As shown in FIG. 8, the light guide 4 is fixed in the vicinity of the center of the light guide 4 by the light guide holder 5 (fitting hole 5d) by the protrusion 4d. Since it is inserted into the hole of the light guide holder 5, expansion and contraction in the longitudinal direction of the light guide 4 due to temperature change is not limited by the light guide holder 5. The light guide holder 5 is fixed around the center of the light guide holder 5 by the plate-like member 8 (fitting hole 8c) via the second protrusion 5c, but the first protrusion 5b is a long hole 8b. Therefore, expansion and contraction in the longitudinal direction of the light guide holder 5 due to temperature change is not limited by the plate-like member 8.

図4〜図8から、導光体ホルダー5は、少なくとも導光体4が光を出射する側面4b(光出射部4b)を除き、長手方向に亘って、導光体4を覆うものであることが分かる。特に、図8から、導光体ホルダー5は、二つの第1突起部5bを有し、長手方向に延在する板状部材8上に載置され、板状部材8は、長手方向に形成された二つの長孔8bを有し、長孔8bは、第1突起部5bが挿入されていることが分かる。同じく、導光体ホルダー5は、第2突起部5cを有し、板状部材8は、長手方向に沿い、長孔8bに対して発光部3側と反対側に形成された嵌合孔8cを有し、嵌合孔8cは、前記第2突起部5cが挿入されていることが分かる。第2突起部5cは、長手方向における導光体4の中央部に形成すると、導光体4が周囲の温度変化により、膨脹や収縮した場合でも、導光体4の中央部を基点に伸び縮みすることになる。特に、導光体ホルダー5の第2突起部5cと嵌合孔5dとを副走査方向(短手方向)の同じ断面にくるように配置するとよい。   4 to 8, the light guide holder 5 covers the light guide 4 in the longitudinal direction except at least the side surface 4b (light emitting portion 4b) from which the light guide 4 emits light. I understand that. In particular, from FIG. 8, the light guide holder 5 has two first protrusions 5b and is placed on a plate-like member 8 extending in the longitudinal direction, and the plate-like member 8 is formed in the longitudinal direction. It can be seen that the first protrusion 5b is inserted into the long hole 8b. Similarly, the light guide holder 5 has a second protrusion 5c, and the plate-like member 8 has a fitting hole 8c formed on the side opposite to the light emitting part 3 with respect to the long hole 8b along the longitudinal direction. It can be seen that the second protrusion 5c is inserted into the fitting hole 8c. When the second protrusion 5c is formed at the center of the light guide 4 in the longitudinal direction, the second protrusion 5c extends from the center of the light guide 4 even when the light guide 4 expands or contracts due to a change in ambient temperature. It will shrink. In particular, the second protrusion 5c and the fitting hole 5d of the light guide holder 5 may be arranged so as to be in the same cross section in the sub-scanning direction (short direction).

よって、前述の前提のとおり、導光体4と導光体ホルダー5とに膨脹率が近い材質を使う場合は、第2突起部5cを長手方向における導光体4の中央部に形成することで、導光体4が導光体ホルダー5から突出することはない。もちろん、導光体4の膨脹率が導光体ホルダー5の膨脹率よりも大きい場合でも、第2突起部5cを長手方向における導光体4の中央部に形成することで、導光体4が導光体ホルダー5から突出しない長手方向の長さを調整することは容易である。この場合、長手方向の両端部に形成された導光体ホルダー5における導光体4の端面4aの周囲を覆う孔の厚みを、導光体4が孔(導光体ホルダー5)から抜け落ちないようにする必要がある。もちろん、孔(導光体ホルダー5)から抜けてしまう場合でも、導光体4の姿勢を、導光体4と導光体ホルダー5との嵌合状態や導光体係止部5aによって維持できるのであれば問題はない。   Therefore, as described above, when the light guide 4 and the light guide holder 5 are made of a material having a similar expansion rate, the second protrusion 5c is formed at the center of the light guide 4 in the longitudinal direction. Thus, the light guide 4 does not protrude from the light guide holder 5. Of course, even when the expansion rate of the light guide 4 is larger than the expansion rate of the light guide holder 5, the light guide 4 is formed by forming the second protrusion 5c at the center of the light guide 4 in the longitudinal direction. It is easy to adjust the length in the longitudinal direction that does not protrude from the light guide holder 5. In this case, the thickness of the hole covering the periphery of the end surface 4a of the light guide 4 in the light guide holder 5 formed at both ends in the longitudinal direction is not dropped from the hole (light guide holder 5). It is necessary to do so. Of course, even when the light guide 4 comes out of the hole (light guide holder 5), the posture of the light guide 4 is maintained by the fitting state between the light guide 4 and the light guide holder 5 and the light guide locking portion 5a. There is no problem if you can.

また、導光体4の膨脹により、導光体4(導光体4の端面4a)が導光体ホルダー5から突出する寸法に導光体4を設定した場合でも、第2突起部5cが長手方向における導光体4の中央部に形成されているので、導光体ホルダー5から突出する導光体4の長さが両端部の導光体ホルダー5で同じ長さとなる。そこで、突出する導光体4の長さを考慮して、導光体4とホルダー7(光学フィルタ6)とが接触しないように、導光体ホルダー5とホルダー7(ホルダー7内の光学フィルタ6の位置)との位置関係を設定すればよい。   Further, even when the light guide 4 is set to a dimension in which the light guide 4 (the end surface 4a of the light guide 4) protrudes from the light guide holder 5 due to the expansion of the light guide 4, the second protrusion 5c is Since the light guide 4 is formed at the center of the light guide 4 in the longitudinal direction, the length of the light guide 4 protruding from the light guide holder 5 is the same in the light guide holders 5 at both ends. Therefore, in consideration of the length of the protruding light guide 4, the light guide holder 5 and the holder 7 (the optical filter in the holder 7 are prevented from contacting the light guide 4 and the holder 7 (the optical filter 6)). 6 position) may be set.

次に、実施の形態1に係る光源装置の照明としての動作について図9及び図10により説明する。光源装置は画像読取装置の照明として使用されるものであり、図10には、読取装置の天板(原稿設置台)と画像読取装置の読取対象が記載されている。図9に示すように、発光素子1(発光部3)から発せられた光は、光学フィルタ6によって、特定の波長の光が選択されて(特定の波長の光が遮断されて)、光入射部4a(端面4a)から導光体4に入射される。或いは、光学フィルタ6によって生じた励起光(変換されなかった波長の光も含む複合光であってもよい)が光入射部4a(端面4a)から導光体4に入射される。入射された光学フィルタ6を介した発光素子1からの光は、導光体4内部の壁面を反射しながら、長手方向に導光される。図9の実線矢印が発光素子1から発した光の光路の一例を示している。なお、発光部3は導光体4の端面4aから光を入射するLED光源などの光源素子(発光素子1)であり、基板2に、はんだ接合などにより固定され、基板2により電流駆動され発光するものである。本願では、基板2の内外の配線の図示は省略する。   Next, the operation of the light source device according to Embodiment 1 as illumination will be described with reference to FIGS. The light source device is used as illumination of the image reading device, and FIG. 10 shows a top plate (document setting table) of the reading device and a reading target of the image reading device. As shown in FIG. 9, light emitted from the light emitting element 1 (light emitting unit 3) is selected by the optical filter 6 as light having a specific wavelength (light having a specific wavelength is blocked), and is incident on the light. The light enters the light guide 4 from the portion 4a (end surface 4a). Alternatively, excitation light generated by the optical filter 6 (may be composite light including light having a wavelength that has not been converted) is incident on the light guide 4 from the light incident portion 4a (end surface 4a). The incident light from the light emitting element 1 through the optical filter 6 is guided in the longitudinal direction while reflecting the wall surface inside the light guide 4. A solid line arrow in FIG. 9 shows an example of an optical path of light emitted from the light emitting element 1. The light-emitting unit 3 is a light source element (light-emitting element 1) such as an LED light source that receives light from the end face 4a of the light guide 4. The light-emitting unit 3 is fixed to the substrate 2 by soldering or the like, and is driven by the substrate 2 to drive light. To do. In the present application, illustration of wiring inside and outside the substrate 2 is omitted.

このように、導光体4の内部を反射しながら導光される光が、導光体4に形成された光散乱パターン4cに当ると、光散乱パターン4cと対向する側面4b(光出射部4b)から出射される。なお、光散乱パターン4cは、導光体4上に印刷されるものでもよいし、導光体4の表面に凹凸をつけたプリズムパターンでもよい。また、光散乱パターン4cの形状を主走査方向において変化させてもよいのはいうまでもない。つまり、導光体4は、透明な樹脂で形成され、長手方向に延在し、側面形状が円筒状で長手方向全域に伸びる二箇所の光散乱パターン4cを持つ柱状のものである。前述のとおり、導光体4の側面形状は円筒に限ったものではなく、導光体4の端面は円形に限らない。   As described above, when the light guided while reflecting the inside of the light guide 4 hits the light scattering pattern 4c formed on the light guide 4, the side surface 4b (light emitting portion) facing the light scattering pattern 4c. 4b). The light scattering pattern 4c may be printed on the light guide 4 or may be a prism pattern having irregularities on the surface of the light guide 4. Needless to say, the shape of the light scattering pattern 4c may be changed in the main scanning direction. That is, the light guide 4 is formed of a transparent resin, extends in the longitudinal direction, has a cylindrical shape, and has a columnar shape having two light scattering patterns 4c extending in the entire longitudinal direction. As described above, the side surface shape of the light guide 4 is not limited to a cylinder, and the end surface of the light guide 4 is not limited to a circle.

図10においては、一方の光出射部4bから出射された光(主光)は、副走査方向に対して斜めに進み、読取装置の天板(透明板)を介して、読取対象に照射される。他方の光出射部4bから出射された光(副光)は、副走査方向に対して「ほぼ平行」又は「一方の光出射部4bから出射された光に対して浅い角度」で進み、反射板11で反射して、読取装置の天板(透明板)を介して、読取対象に照射される。つまり、反射板11は、導光体4と長手方向に平行に配列され、導光体4から出射される副光を反射し、読取対象方向に照射するものであって、金属蒸着面などで構成され、長手方向に延在し、薄い板状あるいはシート状のものである。反射板11は導光体4,読取装置の天板(透明板)及び読取対象に対して適切な距離と角度を保っている。光路によって、「主光」と「副光」とを言い分けているが、これは光量や輝度などの光の各種条件の優劣を示すものではない。   In FIG. 10, the light (main light) emitted from one light emitting unit 4 b travels obliquely with respect to the sub-scanning direction, and is irradiated to the reading target via the top plate (transparent plate) of the reading device. The The light (secondary light) emitted from the other light emitting part 4b travels at a “substantially parallel” or “shallow angle with respect to the light emitted from one light emitting part 4b” and reflected. The light is reflected by the plate 11 and irradiated to the reading object via the top plate (transparent plate) of the reading device. That is, the reflector 11 is arranged in parallel with the light guide 4 in the longitudinal direction, reflects the secondary light emitted from the light guide 4 and irradiates it in the reading target direction. It is configured, extends in the longitudinal direction, and is a thin plate or sheet. The reflecting plate 11 maintains an appropriate distance and angle with respect to the light guide 4, the top plate (transparent plate) of the reading device, and the reading target. Depending on the optical path, “main light” and “sub-light” are distinguished, but this does not indicate the superiority or inferiority of various conditions of light such as light quantity and luminance.

導光体4から出射して読取対象に照射された光は、読取対象で反射されて、反射光通過孔807を介して、読取装置の結像光学系(縮小光学系,正立等倍光学系,オフアキシャル光学系,テレセントリック(両テレセントリック)光学系など)にて結像されて受光部によってデータ化される。なお、読取装置の天板は、必須の構成ではないが、天板が存在する場合は天板の屈折率を考慮して、光源装置の光出射部4bと光散乱パターン4cとの配置を決定する必要がある。また、読取対象の搬送は、読取対象自体を搬送(副走査方向に移動)してもよいし、光源装置を搭載したキャリッジ(画像読取装置)が搬送(副走査方向に移動)してもよい。図示は省略するが、実施の形態1(本願)に係る光源装置を適用する結像光学系が正立等倍光学系である場合は、主走査方向に延びる反射光通過孔807が、ロッドレンズ(ロッドレンズアレイ)を保持するロッドレンズ保持部807としてもよい。この場合、図10に示す一点鎖線がロッドレンズの光軸となる。さらに、ロッドレンズ保持部807の下部(反射光通過孔807にロッドレンズを保持させていない場合は、ロッドレンズの片方の焦点に受光部(センサ)が形成された基板(センサ基板)を配置して、このセンサ基板を板状部材8で直接又は間接的に保持するようにしてもよい。この場合、板状部材8が画像読取装置の筐体も兼ねることになる。   The light emitted from the light guide 4 and applied to the reading object is reflected by the reading object, and passes through the reflected light passage hole 807 to form an imaging optical system (reduction optical system, erecting equal magnification optical system) of the reading apparatus. System, off-axial optical system, telecentric (both telecentric) optical system, etc.) and imaged by the light receiving unit. The top plate of the reading device is not an essential component, but when the top plate is present, the arrangement of the light emitting unit 4b and the light scattering pattern 4c of the light source device is determined in consideration of the refractive index of the top plate. There is a need to. Further, the reading target may be transported (moved in the sub-scanning direction) or the carriage (image reading device) on which the light source device is mounted may be transported (moved in the sub-scanning direction). . Although illustration is omitted, when the imaging optical system to which the light source device according to Embodiment 1 (this application) is an erecting equal-magnification optical system, the reflected light passage hole 807 extending in the main scanning direction is a rod lens. It is good also as the rod lens holding | maintenance part 807 holding (rod lens array). In this case, the one-dot chain line shown in FIG. 10 is the optical axis of the rod lens. Further, a substrate (sensor substrate) having a light receiving portion (sensor) formed at one focal point of the rod lens is disposed below the rod lens holding portion 807 (if the rod lens is not held in the reflected light passage hole 807). The sensor substrate may be directly or indirectly held by the plate-like member 8. In this case, the plate-like member 8 also serves as a housing of the image reading apparatus.

実施の形態1に係る光源装置(反射板支持構造)の板状部材の詳細構成や変形例ついて図12〜図17により説明する。図13(a)は図5の一点鎖線GHによる光源装置の断面に相当する図、図13(b)は図5の一点鎖線IJによる光源装置の断面に相当する図、図14(a)は図5の一点鎖線GHによる光源装置の断面に相当する図、図14(b)は図5の一点鎖線IJによる光源装置の断面に相当する図、図14(a)は図5の一点鎖線GHによる光源装置の断面に相当する図、図14(b)は図5の一点鎖線IJによる光源装置の断面に相当する図である。   Detailed configurations and modifications of the plate-like member of the light source device (reflecting plate support structure) according to Embodiment 1 will be described with reference to FIGS. 13A is a diagram corresponding to the cross section of the light source device taken along the dashed-dotted line GH in FIG. 5, FIG. 13B is a diagram equivalent to the cross section of the light source device taken along the dashed-dotted line IJ in FIG. FIG. 14B is a diagram corresponding to the cross section of the light source device taken along the alternate long and short dash line IJ of FIG. 5, and FIG. 14A is the dashed line GH shown in FIG. FIG. 14B is a diagram corresponding to the cross section of the light source device taken along the alternate long and short dash line IJ in FIG.

図15(a)は図5の一点鎖線GHによる光源装置の断面に相当する図、図15(b)は図5の一点鎖線IJによる光源装置の断面に相当する図、図15(c)は図5の一点鎖線IJによる光源装置の断面に相当する図、図16(a)は図5の一点鎖線GHによる光源装置の断面に相当する図、図16(b)は図5の一点鎖線IJによる光源装置の断面に相当する図である。図17(a)は光源装置(反射板支持構造)の筐体となる板状部材の平面図(折り曲げ前)、図17(b)は図5の一点鎖線GHによる光源装置(反射板支持構造)の断面に相当する図、図17(c)は図5の一点鎖線IJによる光源装置(反射板支持構造)の断面に相当する図である。   15A is a diagram corresponding to the cross section of the light source device taken along the dashed-dotted line GH in FIG. 5, FIG. 15B is a diagram equivalent to the cross section of the light source device taken along the dashed-dotted line IJ in FIG. FIG. 16A is a diagram corresponding to a cross section of the light source device taken along the alternate long and short dash line GH of FIG. 5, FIG. 16B is a diagram corresponding to a cross section of the light source device taken along the alternate long and short dash line GH of FIG. It is a figure corresponded in the cross section of the light source device by. FIG. 17A is a plan view (before bending) of a plate-like member that serves as a housing of the light source device (reflecting plate support structure), and FIG. 17B is a light source device (reflecting plate support structure) shown by a one-dot chain line GH in FIG. FIG. 17C is a diagram corresponding to the cross section of the light source device (reflecting plate support structure) taken along the alternate long and short dash line IJ in FIG.

図14,図15,図16において、801eは反射板支持部801の先端部分が延長され、主走査方向を対する副走査方向に対して屈曲して接続された延長反射板支持部、802eは導光体ホルダー固定部802の先端部分が延長され、主走査方向を対する副走査方向に対して屈曲して接続された延長導光体ホルダー固定部、803eは延長板状端部803(反射板11側)の先端部分が延長され、主走査方向を対する副走査方向に対して屈曲して接続された延長板状端部(反射板11側)、804eは延長板状端部804(導光体ホルダー5側)の先端部分が延長され、主走査方向を対する副走査方向に対して屈曲して接続された延長板状端部(導光体ホルダー5側)である。801bは反射板支持部801は、主走査方向を対する副走査方向に対して一箇所屈曲した部分を有する反射板支持部(斜面部)である。反射板支持部801b(斜面部801b)に対して、反射板支持部801(斜面部801)は主走査方向を対する副走査方向に対して二箇所屈曲した部分を有するものである。8sは板状部材8が折り曲げられる前の平板状の板状部材である。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   14, 15, and 16, 801 e is an extended reflector support portion that is connected to the tip portion of the reflector support portion 801 that is extended and bent with respect to the sub-scan direction with respect to the main scan direction, and 802 e is a guide. An extended light guide holder fixing portion 803e, in which the distal end portion of the optical body holder fixing portion 802 is extended and is bent and connected with respect to the sub-scanning direction with respect to the main scanning direction, is provided with an extended plate-like end portion 803 (reflecting plate 11 The extended plate-like end portion (reflecting plate 11 side) is extended and connected to the main scanning direction with respect to the sub-scanning direction, and 804e is the extended plate-like end portion 804 (light guide). This is an extended plate-like end portion (on the light guide holder 5 side) that is extended and connected to the sub-scanning direction with respect to the main scanning direction. Reference numeral 801b denotes a reflection plate support portion 801 that is a reflection plate support portion (slope portion) having a portion bent at one place with respect to the sub-scanning direction with respect to the main scanning direction. With respect to the reflector support part 801b (slope part 801b), the reflector support part 801 (slope part 801) has two bent portions with respect to the sub-scanning direction with respect to the main scanning direction. 8s is a flat plate-like member before the plate-like member 8 is bent. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図11(a)に示すように、反射板支持部801は、反射板11における導光体4の側面4bから出射した光を反射する面と反対の面側に配置され、主走査方向に沿って、互いに所定の間隔を空けて配列され、反射板11を支持する複数の部材である。また、複数の反射鏡支持部801は、それぞれ板状部材8の主走査方向に沿った一端を折り曲げて形成されたものである。よって、複数の反射鏡支持部801は、反射鏡支持部801を支持する板状部材8が折り曲げられたものであるので、板状部材8と一体であり、板状部材8に対して、主走査方向を対する副走査方向に対して角度を有して起立しているものであるといえる。さらに、反射板支持部801は、主走査方向を対する副走査方向に対して屈曲した部分を有するものであるともいえる。   As shown in FIG. 11A, the reflecting plate support portion 801 is disposed on the surface of the reflecting plate 11 opposite to the surface that reflects the light emitted from the side surface 4b of the light guide 4 and extends along the main scanning direction. Thus, the plurality of members are arranged at predetermined intervals and support the reflecting plate 11. The plurality of reflecting mirror support portions 801 are each formed by bending one end of the plate-like member 8 along the main scanning direction. Therefore, the plurality of reflecting mirror support portions 801 are formed by bending the plate-like member 8 that supports the reflecting mirror support portion 801, and thus are integral with the plate-like member 8, and are It can be said that it stands up with an angle with respect to the sub-scanning direction with respect to the scanning direction. Further, it can be said that the reflection plate support 801 has a portion bent with respect to the sub-scanning direction with respect to the main scanning direction.

実施の形態1に係る光源装置(反射板支持構造)の反射鏡支持部801が複数形成されているので、それぞれの反射鏡支持部801ごとに配置や傾斜角度を設定するだけで、主走査方向及び副走査方向における反射鏡11の設置精度を容易に得ることができる。つまり、一枚の板を反射鏡11の支持部とした場合に生じる主走査方向及び副走査方向における一枚の板の反りや撓みによる反射鏡11の設置精度の悪化を防ぐことが可能となる。また、複数の反射板支持部801は、主走査方向に沿って間欠的に配列され、反射板11を支持しているので、反射鏡11の端部のみで反射鏡11を支持する場合に起こりうる、反射鏡11の自重での反射鏡11の撓みも生じにくいものである。なお、複数の反射板支持部801は、板状部材8に対して角度を有している基端部分以外に、副走査方向に対して屈曲した部分を有するものである。つまり、板状部材8が二箇所折り曲げられている。   Since a plurality of reflecting mirror support portions 801 of the light source device (reflecting plate support structure) according to Embodiment 1 are formed, the main scanning direction can be simply set for each reflecting mirror support portion 801 by setting the arrangement and the inclination angle. And the installation accuracy of the reflecting mirror 11 in the sub-scanning direction can be easily obtained. That is, it is possible to prevent deterioration of the installation accuracy of the reflecting mirror 11 due to warping or bending of one plate in the main scanning direction and the sub-scanning direction, which occurs when a single plate is used as the support portion of the reflecting mirror 11. . Further, since the plurality of reflecting plate support portions 801 are intermittently arranged along the main scanning direction and support the reflecting plate 11, this occurs when the reflecting mirror 11 is supported only by the end portion of the reflecting mirror 11. In addition, it is difficult for the reflecting mirror 11 to be bent by its own weight. The plurality of reflecting plate support portions 801 have a portion bent with respect to the sub-scanning direction in addition to the base end portion having an angle with respect to the plate-like member 8. That is, the plate-like member 8 is bent at two places.

図11(a)(b)に示す板状部材8は、主走査方向に沿った一端のうち、複数の反射鏡支持部801以外の部分が、それぞれ板状部材と連続する複数の板状端部803を有する。折り曲げられた板状端部803によって、実施の形態1に係る光源装置(反射板支持構造)の強度が高まり、反りや撓みが生じにくくなる。また、板状端部803の主走査方向の長さを、反射鏡支持部801の主走査方向の長さよりも長いものとすることで、画像読取装置のキャリッジ(画像読取装置)との接続インターフェース手段としてのネジ穴(ネジ穴805と同じような機能を有するネジ穴)の形成面積を増加するだけではなく、接続インターフェース手段としての板状端部803の強度も高まる。もちろん、実施の形態1に係る光源装置(反射板支持構造)の強度もより高まる。なお、板状端部803は、主走査方向を対する副走査方向に対して屈曲した部分を有するものであるともいえる。   The plate-like member 8 shown in FIGS. 11A and 11B has a plurality of plate-like ends where portions other than the plurality of reflecting mirror support portions 801 are continuous with the plate-like member among one ends along the main scanning direction. Part 803. The bent plate-like end portion 803 increases the strength of the light source device (reflecting plate support structure) according to Embodiment 1, and is less likely to warp or bend. Further, the length of the plate-like end portion 803 in the main scanning direction is longer than the length of the reflecting mirror support portion 801 in the main scanning direction, so that a connection interface with the carriage (image reading device) of the image reading device is provided. In addition to increasing the formation area of a screw hole as a means (a screw hole having the same function as the screw hole 805), the strength of the plate-like end 803 as a connection interface means is also increased. Of course, the strength of the light source device (reflection plate support structure) according to Embodiment 1 is further increased. It can be said that the plate-like end portion 803 has a portion bent with respect to the sub-scanning direction with respect to the main scanning direction.

図11(b)に示すように、導光体ホルダー固定部802は、主走査方向に沿って、互いに所定の間隔を空けて配列され、導光体ホルダー5を固定する複数の部材である。導光体ホルダー固定部802は一つでもよい。また、複数の導光体ホルダー固定部802は、それぞれ板状部材8の主走査方向に沿った他端を二箇所折り曲げて形成されたものである。よって、複数の導光体ホルダー固定部802は、板状部材8が折り曲げられたものであるので、反射鏡支持部801同様に、板状部材8と一体であり、板状部材8に対して、主走査方向を対する副走査方向に対して角度を有して起立しているものであるといえる。さらに、導光体ホルダー固定部802は、主走査方向を対する副走査方向に対して屈曲した部分を有するものであるともいえる。   As shown in FIG. 11B, the light guide holder fixing portion 802 is a plurality of members that are arranged at predetermined intervals along the main scanning direction and fix the light guide holder 5. One light guide holder fixing portion 802 may be provided. The plurality of light guide holder fixing portions 802 are formed by bending the other end of the plate-like member 8 along the main scanning direction in two places. Therefore, since the plurality of light guide holder fixing portions 802 are formed by bending the plate-like member 8, like the reflector support portion 801, they are integrated with the plate-like member 8, and are attached to the plate-like member 8. It can be said that it stands up with an angle with respect to the sub-scanning direction with respect to the main scanning direction. Furthermore, it can be said that the light guide holder fixing portion 802 has a portion bent with respect to the sub-scanning direction with respect to the main scanning direction.

図11(a)(b)に示す板状部材8は、主走査方向に沿った他端のうち、複数の導光体ホルダー固定部802以外の部分が、それぞれ板状部材と連続する複数の板状端部804を有する。折り曲げられた板状端部804によって、実施の形態1に係る光源装置(反射板支持構造)の強度が高まり、反りや撓みが生じにくくなる。また、板状端部804の主走査方向の長さを、導光体ホルダー固定部802の主走査方向の長さよりも長いものとすることで、板状端部803と同様に、画像読取装置のキャリッジ(画像読取装置)との接続インターフェース手段としてのネジ穴(ネジ穴805と同じような機能を有するネジ穴)の形成面積を増加するだけではなく、接続インターフェース手段としての板状端部804の強度も高まる。もちろん、実施の形態1に係る光源装置(反射板支持構造)の強度もより高まる。なお、板状端部804は、主走査方向を対する副走査方向に対して屈曲した部分を有するものであるともいえる。   The plate-like member 8 shown in FIGS. 11A and 11B has a plurality of portions other than the plurality of light guide holder fixing portions 802, which are continuous with the plate-like member, at the other end along the main scanning direction. It has a plate-like end 804. The bent plate-like end portion 804 increases the strength of the light source device (reflecting plate support structure) according to Embodiment 1, and is less likely to warp or bend. Further, the length of the plate-shaped end portion 804 in the main scanning direction is longer than the length of the light guide holder fixing portion 802 in the main scanning direction, so that the image reading apparatus is similar to the plate-shaped end portion 803. In addition to increasing the formation area of screw holes (screw holes having the same function as the screw holes 805) as connection interface means with the carriage (image reading apparatus), a plate-like end 804 as connection interface means The strength of is also increased. Of course, the strength of the light source device (reflection plate support structure) according to Embodiment 1 is further increased. It can be said that the plate-like end portion 804 has a portion bent with respect to the sub-scanning direction with respect to the main scanning direction.

図12及び図13に記載の板状部材8a(板状部材8)は、実施の形態1に係る光源装置(反射板支持構造)における板状部材8a(板状部材8)の変形例である。図12及び図13に記載の板状部材8a(板状部材8)は、複数の板状端部803の複数の反射鏡支持部801と連続する基端側から副走査方向に沿った先端側が、それぞれ接続されて一体となっている一体端部808が形成されている。一体端部808によって、複数の板状端部803の強度が高まる。また、一体端部808に、画像読取装置のキャリッジ(画像読取装置)との接続インターフェース手段としてのネジ穴(ネジ穴805と同じような機能を有するネジ穴)を形成してもよい。   A plate-like member 8a (plate-like member 8) shown in FIGS. 12 and 13 is a modification of the plate-like member 8a (plate-like member 8) in the light source device (reflecting plate support structure) according to the first embodiment. . The plate-like member 8a (plate-like member 8) shown in FIGS. 12 and 13 has a distal end side along the sub-scanning direction from the base end side that is continuous with the plurality of reflector support portions 801 of the plurality of plate-like end portions 803. , Integrated end portions 808 that are connected and integrated are formed. The integrated end portion 808 increases the strength of the plurality of plate-shaped end portions 803. Further, a screw hole (a screw hole having a function similar to that of the screw hole 805) as a connection interface unit with the carriage (image reading apparatus) of the image reading apparatus may be formed in the integrated end portion 808.

図14(a)(b)に記載の光源装置(反射板支持構造)は、実施の形態1に係る光源装置(反射板支持構造)における反射板支持部801の変形例である。図14(a)に記載の反射板支持部801は、板状部材8に対して角度を有している基端部分に対する先端部分が延長された延長反射板支持部801eを有するものである。反射板支持部801と延長反射板支持部801eとの間が屈曲しているので、反射板支持部801の強度が高くなる。また、延長反射板支持部801eは、板状部材8(板状部材8a)と反射板11との寸法差から板状部材8(板状部材8a)に生じた余剰分を当てることができる。図14(b)に記載の板状端部803は、板状部材8に対して角度を有している基端部分に対する先端部分が延長された延長板状端部803eを有するものである。板状端部803と延長板状端部803eとの間が屈曲しているので、板状端部803の強度が高くなる。なお、延長反射板支持部801eや延長板状端部803eに、画像読取装置のキャリッジ(画像読取装置)との接続インターフェース手段としてのネジ穴(ネジ穴805と同じような機能を有するネジ穴)を形成してもよい。   The light source device (reflector support structure) described in FIGS. 14A and 14B is a modification of the reflector support portion 801 in the light source device (reflector support structure) according to the first embodiment. The reflector support portion 801 shown in FIG. 14A has an extended reflector support portion 801 e in which a distal end portion is extended with respect to a base end portion having an angle with respect to the plate-like member 8. Since the reflection plate support portion 801 and the extended reflection plate support portion 801e are bent, the strength of the reflection plate support portion 801 is increased. Further, the extended reflecting plate support portion 801e can apply a surplus generated in the plate member 8 (plate member 8a) due to a dimensional difference between the plate member 8 (plate member 8a) and the reflecting plate 11. A plate-like end portion 803 shown in FIG. 14B has an extended plate-like end portion 803 e in which a distal end portion is extended with respect to a base end portion having an angle with respect to the plate-like member 8. Since the portion between the plate-like end portion 803 and the extended plate-like end portion 803e is bent, the strength of the plate-like end portion 803 is increased. A screw hole (a screw hole having a function similar to that of the screw hole 805) as a connection interface means with the carriage (image reading device) of the image reading device is provided in the extended reflecting plate support portion 801e and the extended plate-like end portion 803e. May be formed.

図15(a)(b)(c)に記載の光源装置(反射板支持構造)は、実施の形態1に係る光源装置(反射板支持構造)における反射板支持部801,導光体ホルダー固定部802,板状端部803,板状端部804の変形例である。図15に記載の光源装置(反射板支持構造)は、図14に記載の光源装置(反射板支持構造)に、延長導光体ホルダー固定部802e,延長板状端部804eが追加された構成となっているので、延長導光体ホルダー固定部802eと延長板状端部804eとの説明を行う。延長反射板支持部801e及び延長板状端部803eの説明は前述のとおりである。   The light source device (reflector support structure) shown in FIGS. 15A, 15B, and 15C is the reflector support portion 801 and the light guide holder fixing in the light source device (reflector support structure) according to the first embodiment. This is a modification of the portion 802, the plate-like end portion 803, and the plate-like end portion 804. The light source device (reflecting plate support structure) shown in FIG. 15 has a configuration in which an extended light guide holder fixing portion 802e and an extended plate-like end portion 804e are added to the light source device (reflecting plate support structure) shown in FIG. Therefore, the extension light guide holder fixing portion 802e and the extension plate end portion 804e will be described. The explanation of the extended reflector support portion 801e and the extended plate-like end portion 803e is as described above.

図15(a)に記載の板状端部804は、板状部材8に対して角度を有している基端部分に対する先端部分が延長された延長板状端部804eを有するものである。板状端部804と延長板状端部804eとの間が屈曲しているので、板状端部804の強度が高くなる。図15(b)に記載の導光体ホルダー固定部802は、板状部材8に対して角度を有している基端部分に対して、さらに屈曲した先端部分が延長された延長導光体ホルダー固定部802eを有するものである。導光体ホルダー固定部802と延長導光体ホルダー固定部802eとの間が、導光体ホルダー5側と反対に屈曲しているので、導光体ホルダー固定部802の強度が高くなる。図15(c)に記載の導光体ホルダー固定部802は、板状部材8に対して角度を有している基端部分に対して、さらに屈曲した先端部分が延長された延長導光体ホルダー固定部802eを有するものである。導光体ホルダー固定部802と延長導光体ホルダー固定部802eとの間が、導光体ホルダー5側に屈曲しているので、導光体ホルダー固定部802の強度が高くなるだけでなく、導光体ホルダー5の固定が、より強固なものとなる。   The plate-like end portion 804 shown in FIG. 15A has an extended plate-like end portion 804 e in which a distal end portion is extended with respect to a base end portion having an angle with respect to the plate-like member 8. Since the portion between the plate-like end portion 804 and the extended plate-like end portion 804e is bent, the strength of the plate-like end portion 804 is increased. The light guide holder fixing portion 802 illustrated in FIG. 15B is an extended light guide in which a bent distal end portion is extended with respect to a base end portion having an angle with respect to the plate-like member 8. It has a holder fixing part 802e. Since the space between the light guide holder fixing portion 802 and the extended light guide holder fixing portion 802e is bent opposite to the light guide holder 5 side, the strength of the light guide holder fixing portion 802 is increased. The light guide holder fixing portion 802 illustrated in FIG. 15C is an extended light guide in which a bent distal end portion is extended with respect to a base end portion having an angle with respect to the plate-like member 8. It has a holder fixing part 802e. Since the space between the light guide holder fixing portion 802 and the extended light guide holder fixing portion 802e is bent toward the light guide holder 5 side, not only the strength of the light guide holder fixing portion 802 is increased, The light guide holder 5 is more firmly fixed.

図15(b)と図15(c)との違いは、延長導光体ホルダー固定部802eの導光体ホルダー固定部802に対する屈曲方向の違いである。図15に記載の延長導光体ホルダー固定部802eは、板状部材8(板状部材8a)と導光体ホルダー5との寸法差から板状部材8(板状部材8a)に生じた余剰分を当てることができる。なお、延長反射板支持部801e及び延長板状端部803eと同様に、延長板状端部804eに、画像読取装置のキャリッジ(画像読取装置)との接続インターフェース手段としてのネジ穴(ネジ穴805と同じような機能を有するネジ穴)を形成してもよい。また、反射板支持部801部分の断面は、図15(b)及び図15(c)ともに図15(a)となる。   The difference between FIG. 15B and FIG. 15C is the difference in the bending direction of the extended light guide holder fixing portion 802e with respect to the light guide holder fixing portion 802. The extended light guide holder fixing portion 802e shown in FIG. 15 is a surplus produced in the plate member 8 (plate member 8a) due to the difference in dimensions between the plate member 8 (plate member 8a) and the light guide holder 5. You can count on minutes. Similar to the extension reflector support 801e and the extension plate end 803e, the extension plate end 804e has a screw hole (screw hole 805) serving as a connection interface with the carriage (image reading device) of the image reading device. A screw hole having a function similar to that in FIG. Moreover, the cross section of the reflecting plate supporting portion 801 is as shown in FIG. 15A for both FIG. 15B and FIG.

図16(a)(b)に記載の光源装置(反射板支持構造)は、実施の形態1に係る光源装置(反射板支持構造)における反射板支持部801の変形例である。図11,図13,図14,図15に記載の反射板支持部801は、主走査方向を対する副走査方向に対して二箇所屈曲した部分を有するものである。具体的には、反射板支持部801は、互いに異なる方向に屈曲している。なお、図14及び図15では、さらに、反射板支持部801eと反射板支持部801との間が屈曲している。一方、図16(a)に記載の反射板支持部801bは、主走査方向を対する副走査方向に対して一箇所屈曲した部分を有するものである。反射板支持部801bに、一箇所だけの屈曲が存在するので、板状部材8aの加工の工程を減ずることができる。また、反射板11を支持する角度の調整も一度済むことになる。もちろん、図16(a)(b)に記載の光源装置(反射板支持構造)に、図12〜図15で示すように、一体端部808,延長反射板支持部801e,延長導光体ホルダー固定部802e,延長板状端部803e,延長板状端部804eの少なくとも一つを付加してもよい。   The light source device (reflector support structure) described in FIGS. 16A and 16B is a modification of the reflector support portion 801 in the light source device (reflector support structure) according to the first embodiment. The reflecting plate support portion 801 described in FIGS. 11, 13, 14 and 15 has a portion bent at two places with respect to the sub-scanning direction with respect to the main scanning direction. Specifically, the reflector support part 801 is bent in different directions. In FIGS. 14 and 15, the space between the reflecting plate support portion 801e and the reflecting plate support portion 801 is further bent. On the other hand, the reflector support portion 801b shown in FIG. 16A has a portion bent at one place with respect to the sub-scanning direction with respect to the main scanning direction. Since the reflector support portion 801b has only one bend, the process of processing the plate-like member 8a can be reduced. In addition, the angle for supporting the reflecting plate 11 is adjusted only once. Of course, in the light source device (reflector support structure) shown in FIGS. 16A and 16B, as shown in FIGS. 12 to 15, the integrated end 808, the extended reflector support 801e, and the extended light guide holder You may add at least one of the fixing | fixed part 802e, the extended plate-shaped edge part 803e, and the extended plate-shaped edge part 804e.

実施の形態1に係る光源装置は、導光体4,導光体ホルダー5,ホルダー7,基板2,反射板11の端部偏差が少なく、かつ照明効率のよいものを得ることができる。実施の形態1に係る反射板支持構造は、反射板11の端部偏差が少ないものを得ることができる。また、これまでは(図1〜図16)、実施の形態1に係る反射板支持構造は、光源装置に組み込まれている要素として説明していたが、反射板支持構造のみでも実施可能であることを説明する。図17は実施の形態1に係る反射板支持構造を示すものである。図17(a)は、反射板支持構造の筐体となる板状部材8の折り曲げ前の板状部材8sを示している。板状部材8sと板状部材8aとの相違点は、導光体ホルダー5,ホルダー7を支持する機構がないことと、反射光通過孔807がないことである。但し、図17に示す反射板支持構造を、実施の形態1に係る光源装置と同じ用途に使う場合は、反射光通過孔807を形成してもよいし、もちろん形成しなくてもよい。これは、換言すると、実施の形態1に係る反射板支持構造は、画像読取装置の結像光学系における反射板(反射鏡,凹面鏡,凸面鏡)を支持する構造に適用することができること意味している。なお、この場合は、ネジ穴805は、画像読取装置のキャリッジ以外の部材との接続に用いてもよい。   The light source device according to the first embodiment can obtain a light source device with a small illumination at the end portion of the light guide 4, the light guide holder 5, the holder 7, the substrate 2, and the reflection plate 11 and with good illumination efficiency. The reflector support structure according to Embodiment 1 can be obtained with a small end deviation of the reflector 11. Moreover, until now (FIGS. 1 to 16), the reflector support structure according to Embodiment 1 has been described as an element incorporated in the light source device, but the reflector support structure alone can also be implemented. Explain that. FIG. 17 shows a reflector support structure according to the first embodiment. FIG. 17A shows a plate-like member 8s before the plate-like member 8 serving as a casing of the reflector support structure is bent. The difference between the plate-like member 8s and the plate-like member 8a is that there is no mechanism for supporting the light guide holder 5 and the holder 7 and there is no reflected light passage hole 807. However, when the reflector support structure shown in FIG. 17 is used for the same application as that of the light source device according to Embodiment 1, the reflected light passage hole 807 may or may not be formed. In other words, this means that the reflector support structure according to Embodiment 1 can be applied to a structure that supports the reflector (reflector, concave mirror, convex mirror) in the imaging optical system of the image reading apparatus. Yes. In this case, the screw hole 805 may be used for connection with a member other than the carriage of the image reading apparatus.

図17(b)(c)は、反射板支持構造の断面図を示している。複数の反射板支持部801は、反射板11の反射面と反対の面側に配置され、複数の反射鏡支持部801を支持する板状部材8と一体である。また、複数の反射板支持部801は、板状部材8に対して、主走査方向を対する副走査方向に対して角度を有して起立し、それぞれ板状部材8の主走査方向に沿った一端を折り曲げて形成されたものである。   FIGS. 17B and 17C are cross-sectional views of the reflector support structure. The plurality of reflection plate support portions 801 are disposed on the surface opposite to the reflection surface of the reflection plate 11 and are integrated with the plate-like member 8 that supports the plurality of reflection mirror support portions 801. Further, the plurality of reflecting plate support portions 801 stand with an angle with respect to the plate-like member 8 with respect to the sub-scanning direction with respect to the main-scanning direction, and each follow the main-scanning direction of the plate-like member 8. It is formed by bending one end.

図17(b)(c)に示す反射板支持構造は、図4〜図8,図10,図11に示す反射板支持構造(光源装置)の反射板11側のみであるといえる。よって、図4〜図8,図10,図11に示す反射板支持構造(光源装置)と同様に、図17(b)(c)に示す反射板支持構造は、一体端部808,延長反射板支持部801e,延長板状端部803eの少なくとも一つを付加してもよい。また、反射板支持部801を反射板支持部801bに置換してもよい。さらに、置換した上で、一体端部808,延長反射板支持部801e,延長板状端部803eの少なくとも一つを付加してもよい。   It can be said that the reflector support structure shown in FIGS. 17B and 17C is only on the reflector 11 side of the reflector support structure (light source device) shown in FIGS. 4 to 8, 10, and 11. Therefore, like the reflector support structure (light source device) shown in FIGS. 4 to 8, 10, and 11, the reflector support structure shown in FIGS. At least one of the plate support portion 801e and the extended plate-like end portion 803e may be added. Moreover, you may substitute the reflecting plate support part 801 with the reflecting plate support part 801b. Further, after replacement, at least one of the integrated end portion 808, the extended reflector support portion 801e, and the extended plate-like end portion 803e may be added.

このような構造のため、実施の形態1に係る光源装置(反射板支持構造)は、画像読取装置の結像光学系内の反射板(第1ミラー、第2ミラー・・など)の支持構造としてのみでも実施可能である。この場合は、図17の矢印X,Y,Zで示す方向は参考情報となる。また、前述の副光を反射させる反射板の支持構造としてのみでも実施可能である。よって、反射板支持構造を光源装置(画像読取装置に使用する光源装置)の構成として使用する場合は、反射板11が反射する光の到来元が、反射板11と対向して配置され、主走査方向に延在する棒状光源又はアレイ光源でもよい。もちろん、棒状光源には、発光部3と、端面4aから入射された発光部3からの光を長手方向に導光して、側面4bから出射する柱状の導光体4とからなるものを含んでいる。さらに、実施の形態1に係る光源装置における棒状光源は、放電灯であってもよい。放電灯は、ネオン管などのグロー放電による放電灯,蛍光灯やキセノンランプ(Xeランプ)などのアーク放電による放電灯などの一般的なものでよい。   Due to such a structure, the light source device (reflector support structure) according to the first embodiment is a support structure for a reflector (first mirror, second mirror,...) In the imaging optical system of the image reading apparatus. It is possible to implement only as well. In this case, directions indicated by arrows X, Y, and Z in FIG. 17 are reference information. Further, the present invention can be implemented only as a support structure for the reflection plate that reflects the above-mentioned sub-light. Therefore, when the reflection plate support structure is used as a configuration of a light source device (a light source device used for an image reading device), the arrival source of light reflected by the reflection plate 11 is disposed to face the reflection plate 11 and is mainly used. It may be a rod-shaped light source or an array light source extending in the scanning direction. Of course, the rod-shaped light source includes a light emitting unit 3 and a columnar light guide 4 that guides light from the light emitting unit 3 incident from the end surface 4a in the longitudinal direction and emits the light from the side surface 4b. It is out. Furthermore, the rod-shaped light source in the light source device according to Embodiment 1 may be a discharge lamp. The discharge lamp may be a general one such as a discharge lamp using glow discharge such as a neon tube, or a discharge lamp using arc discharge such as a fluorescent lamp or a xenon lamp (Xe lamp).

実施の形態1に係る光源装置におけるアレイ光源は、発光部3(発光素子1)が主走査方向に複数配列され、副走査方向に光(副光)を放射するものでもよいし、発光部3(発光素子1)が主走査方向に複数配列され、導光部材又は反射部材によって、副走査方向に光(副光)を放射するものでもよい。もちろん、アレイ光源は副光だけではなく、主光も放射するものでもよいし、その両方を放射するものでもよい。さらに、主光と副光と得るために、別の配列で並べたアレイ光源を採用してよい。つまり、主光用に配列されたアレイ光源と副光用に配列されたアレイ光源とが主走査方向に沿って二列並んでいる状態となる(ここでいう二列は、千鳥配列を含む)。   The array light source in the light source device according to Embodiment 1 may be one in which a plurality of light emitting units 3 (light emitting elements 1) are arranged in the main scanning direction and emit light (sub light) in the sub scanning direction. A plurality of (light emitting elements 1) may be arranged in the main scanning direction, and light (sub light) may be emitted in the sub scanning direction by a light guide member or a reflecting member. Of course, the array light source may emit not only the secondary light but also the main light, or may emit both. Furthermore, in order to obtain main light and sub light, an array light source arranged in a different arrangement may be employed. That is, the array light source arranged for the main light and the array light source arranged for the sub-light are arranged in two rows along the main scanning direction (the two rows here include a staggered arrangement). .

実施の形態1に係る光源装置の導光体ホルダー5及びホルダー7の詳細構成や変形例ついて図18〜図21により説明する。具体的には、実施の形態1に係る光源装置を構成する導光体4の温度特性に依らず、導光体4などの端部偏差が少ないことを説明する。なお、実施の形態1に係る光源装置の導光体4及び導光体ホルダー5の厚み方向の膨脹と収縮とを考慮して、導光体4,導光体ホルダー5,ホルダー7を配置していることはいうまでもない。例えば、膨脹が最大のときに、導光体ホルダー5がホルダー7を破損させないように、導光体ホルダー5及びホルダー7の寸法を設定するなどが想定される。しかし、導光体4及び導光体ホルダー5の長手方向の膨脹と収縮とに比べて影響が非常に少ないので、詳細説明は省略する。図18(a)は図5の一点鎖線EFによる光源装置の発光部周辺断面図、図18(b)は図18(a)のホルダー7部分のみの断面イメージ図、図19(a)は図5の一点鎖線EFによる光源装置の発光部周辺断面図、図19(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面図、図19(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面図、図20(a)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図20(b)は図20(a)のホルダー7部分のみの断面イメージ図、図21(a)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図21(b)は図21(a)のホルダー7部分のみの断面イメージ図である。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   Detailed configurations and modifications of the light guide holder 5 and the holder 7 of the light source device according to Embodiment 1 will be described with reference to FIGS. Specifically, it will be described that the end portion deviation of the light guide 4 or the like is small regardless of the temperature characteristics of the light guide 4 constituting the light source device according to Embodiment 1. In consideration of expansion and contraction in the thickness direction of the light guide 4 and the light guide holder 5 of the light source device according to Embodiment 1, the light guide 4, the light guide holder 5, and the holder 7 are arranged. Needless to say. For example, it is assumed that the dimensions of the light guide holder 5 and the holder 7 are set so that the light guide holder 5 does not damage the holder 7 when the expansion is maximum. However, since the influence is very small compared with the expansion and contraction of the light guide 4 and the light guide holder 5 in the longitudinal direction, the detailed description is omitted. 18A is a cross-sectional view of the periphery of the light emitting unit of the light source device taken along the alternate long and short dash line EF of FIG. 5, FIG. 18B is a cross-sectional image of only the holder 7 portion of FIG. 18A, and FIG. FIG. 19B is a cross-sectional view around the light-emitting portion of the light source device taken along the alternate long and short dash line EF of FIG. 5, and FIG. 19C is a light source taken along the dashed-dotted line EF of FIG. FIG. 20A is a cross-sectional view of the vicinity of the center of the light guide of the device, FIG. 20A is a view corresponding to a cross-section of the light-emitting device periphery of the light source device along the alternate long and short dash line EF of FIG. 21 (a) is a diagram corresponding to a cross section around the light emitting unit of the light source device taken along one-dot chain line EF in FIG. 5, and FIG. 21 (b) is a sectional image diagram of only the holder 7 portion in FIG. 21 (a). is there. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図18及び図19に示すように、ホルダー7は連通する第1開口(図18(b)の点線矢印で示す部分)と第2開口(図18(b)の点線矢印で示す部分)とを有している。ホルダー7は、第1開口側に導光体ホルダー5の端部を前記長手方向で摺動可能に保持している。一方、ホルダー7は、第2開口に発光部3を配置している。さらに、ホルダー7は、第1開口と第2開口との間に光学フィルタ6を発光部3と所定の間隔を維持して支持している。光学フィルタ6は、導光体ホルダー5の端部の摺動によって導光体の端面が移動する範囲外でホルダー7によって支持されている。なお、図18及び図19では、発光部3、特に、発光素子1は、ホルダー7の第2開口に配置されているが、この配置に限定する必要はなく、発光素子1(発光部3)から発せられた光が、ホルダー7の第2開口と第1開口とを介して導光体4に入射するように、発光部3を配置すればよい。   As shown in FIGS. 18 and 19, the holder 7 has a first opening (a portion indicated by a dotted arrow in FIG. 18B) and a second opening (a portion indicated by a dotted arrow in FIG. 18B) communicating with each other. Have. The holder 7 holds the end of the light guide holder 5 slidably in the longitudinal direction on the first opening side. On the other hand, the holder 7 has the light emitting unit 3 disposed in the second opening. Further, the holder 7 supports the optical filter 6 between the first opening and the second opening while maintaining a predetermined distance from the light emitting unit 3. The optical filter 6 is supported by the holder 7 outside the range in which the end face of the light guide moves by sliding of the end of the light guide holder 5. In FIG. 18 and FIG. 19, the light emitting unit 3, in particular, the light emitting element 1 is disposed in the second opening of the holder 7. However, the present invention is not limited to this arrangement. The light emitting unit 3 may be arranged so that the light emitted from the light enters the light guide 4 through the second opening and the first opening of the holder 7.

なお、導光体ホルダー5は、白色樹脂や反射性の良い金属などで成形され、長手方向に長溝で構成した溝部を有し、この溝部に導光体4が配置されて、長手方向に導光体4を保持する。この溝部の開口側が導光体4から光が出射される出射領域(光出射部4b)となる。導光体ホルダー5は、導光体4を反射板11と板状部材8に対して適切な位置に導光体4を保持し、側面や光散乱パターン4cの裏面からの漏れ光を導光体4内に反射により押し戻し、光出射部4b以外からの意図しない光の出射を抑制する役割を果たす。   The light guide holder 5 is formed of a white resin or a metal having good reflectivity, and has a groove portion formed by a long groove in the longitudinal direction. The light guide body 4 is disposed in the groove portion and guided in the longitudinal direction. The light body 4 is held. The opening side of the groove portion is an emission region (light emission portion 4b) from which light is emitted from the light guide 4. The light guide holder 5 holds the light guide 4 at an appropriate position with respect to the reflector 11 and the plate-like member 8 and guides light leaked from the side surface and the back surface of the light scattering pattern 4c. It pushes back into the body 4 by reflection and plays a role of suppressing unintended light emission from other than the light emitting part 4b.

次に、図19を用いて、実施の形態1に係る光源装置は、ホルダー7の第1開口及び第2開口の間に光学フィルタ6を発光部3と所定の間隔を維持して支持するものであること、つまり、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないものであること説明する。図19(a)は導光体4の長手方向の長さが最も短い場合を示している。図19(b)は導光体4の長手方向の長さが最も長い場合を示している。図19(図18(b)に位置関係を明示している)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部,第3中空部を有し、第2中空部内で光学フィルタ6を支持している。詳しくは、第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、段差部分の厚みは光学フィルタ6の厚み以上とする。図19(c)は、導光体ホルダー5の第2突起部5cと嵌合孔5dとを副走査方向(短手方向)の同じ断面に配置されるように設定していること示している。少なくとも、第1中空部の内壁形状は、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触して導光体ホルダー5が摺動可能である、若しくは、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触せずに、導光体ホルダー5が伸縮可能である必要がある。後者の説明は後述する。   Next, referring to FIG. 19, the light source device according to Embodiment 1 supports the optical filter 6 between the first opening and the second opening of the holder 7 while maintaining a predetermined distance from the light emitting unit 3. That is, the end surface 4a (light incident portion 4a) of the light guide 4 and the light emitting portion 3 (optical filter 6) are not in contact with each other. FIG. 19A shows a case where the length of the light guide 4 in the longitudinal direction is the shortest. FIG. 19B shows a case where the length of the light guide 4 in the longitudinal direction is the longest. The holder 7 shown in FIG. 19 (the positional relationship is clearly shown in FIG. 18B) includes a first hollow portion, a first hollow portion, and a first hollow portion, the diameter of which decreases in order from the first opening side to the second opening side. There are two hollow portions and a third hollow portion, and the optical filter 6 is supported in the second hollow portion. Specifically, the optical filter 6 is formed in a step portion generated between the second hollow portion and the third hollow portion. Note that the thickness of the stepped portion is equal to or greater than the thickness of the optical filter 6. FIG. 19C shows that the second protrusion 5c and the fitting hole 5d of the light guide holder 5 are set to be arranged in the same cross section in the sub-scanning direction (short direction). . At least the inner wall shape of the first hollow portion is such that the portion of the light guide holder 5 inserted into the holder 7 is in contact with the holder 7 so that the light guide holder 5 can slide, or the light guide holder 5 The light guide holder 5 needs to be extendable without the portion inserted into the holder 7 coming into contact with the holder 7. The latter will be described later.

図19(b)に示すように、導光体4(導光体ホルダー5)の膨脹が最大となった場合に、第1中空部と第2中空部に生じた段差部分に、導光体4の端面4a及び導光体ホルダー5の端面が接触するか若しくは接触直前となるように、導光体ホルダー5とホルダー7とを配置することで、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないようにすることができる。この関係は、第1突起部5bと長孔8bも同じである。また、図19(a)(b)に示すように、導光体ホルダー5は、第1開口の縁に対向する押し当て面部を有し、この押し当て面部は、導光体ホルダー5の摺動範囲(移動範囲)を制限するようにしてもよい(図19(b))。なお、導光体4の膨脹が最大となったときに押し当て面部が第1開口の縁に接触直前となるようにしてもよい。この場合、押し当て面部は押し当て面部ではなく対向面部となる。   As shown in FIG. 19B, when the expansion of the light guide 4 (the light guide holder 5) is maximized, the light guide is formed in the step portion generated in the first hollow portion and the second hollow portion. By arranging the light guide holder 5 and the holder 7 so that the end face 4a of the light guide 4 and the end face of the light guide holder 5 are in contact or just before contact, the end face 4a of the light guide 4 (light incident portion 4a) and the light emission part 3 (optical filter 6) can be prevented from contacting. This relationship is the same for the first protrusion 5b and the long hole 8b. In addition, as shown in FIGS. 19A and 19B, the light guide holder 5 has a pressing surface portion facing the edge of the first opening, and the pressing surface portion is slid on the light guide holder 5. You may make it restrict | limit a moving range (movement range) (FIG.19 (b)). In addition, when the expansion of the light guide 4 becomes maximum, the pressing surface portion may be immediately before contacting the edge of the first opening. In this case, the pressing surface portion is not the pressing surface portion but the facing surface portion.

ホルダー7は、基板2と導光体ホルダー5と光学フィルタ6を保持し、発光部3からの意図しない光を抑制するものであるともいえる。実施の形態1に係る光源装置では、ホルダー7の一方の端面にある第1開口へ導光体ホルダー5の一方の端面を含む端部が挿入され、ホルダー7の逆側の端面にある第2開口に発光部3を固定した基板2を発光部3と導光体4が対向するように配置されている。また、前述のとおり、ホルダー7は、第1開口に挿入された導光体ホルダー5の端部の端面4aと光学フィルタ6との距離は、導光体4(導光体ホルダー5)の膨脹又は収縮により変動するが、光学フィルタ6を保持する面と、逆側の面(第2開口)に基板2を固定する面とを持ち、光学フィルタ6と基板2との距離を一定に保ち、導光体4(導光体ホルダー5)の伸縮(膨脹又は収縮)の影響を受けないものとなっている。よって、光学フィルタ6の調光特性が安定する。   It can be said that the holder 7 holds the substrate 2, the light guide holder 5, and the optical filter 6, and suppresses unintended light from the light emitting unit 3. In the light source device according to Embodiment 1, an end including one end face of the light guide holder 5 is inserted into the first opening on one end face of the holder 7, and the second end face on the opposite end face of the holder 7 is inserted. The board | substrate 2 which fixed the light emission part 3 to opening is arrange | positioned so that the light emission part 3 and the light guide 4 may oppose. In addition, as described above, the distance between the end face 4a of the end portion of the light guide holder 5 inserted into the first opening and the optical filter 6 is determined by the expansion of the light guide 4 (light guide holder 5). Or, although it fluctuates due to shrinkage, it has a surface for holding the optical filter 6 and a surface for fixing the substrate 2 to the opposite surface (second opening), and keeps the distance between the optical filter 6 and the substrate 2 constant, The light guide 4 (light guide holder 5) is not affected by expansion / contraction (expansion or contraction). Therefore, the dimming characteristics of the optical filter 6 are stabilized.

つまり、実施の形態1に係る光源装置は、導光体4とホルダー7の嵌合深さ(挿入深さ)及び導光体ホルダー5とホルダー7の相対位置は変動するが、板状部材8の長孔8bには、長手方向に対して導光体ホルダー5の温度特性伸縮分のギャップ(間隙)を設けておくことで、導光体ホルダー5は長手方向に対して伸縮可能である。よって、導光体4と導光体ホルダー5を高さ方向と短手方向は変動させない、すなわち照明特性は変えない構成となる。また、ホルダー7はネジ10によって板状部材8上の締結部806に長手方向に固定されているため、放熱効果も変わらない。さらに、常温時においても高温時においても、板状部材8,伝熱体9,基板2,発光素子1,ホルダー,光学フィルタ6の距離は一定であり、導光体4と導光体ホルダー5の距離は一定である(膨脹率が近い場合)。   That is, in the light source device according to Embodiment 1, the fitting depth (insertion depth) of the light guide 4 and the holder 7 and the relative position of the light guide holder 5 and the holder 7 vary, but the plate-like member 8 The light guide holder 5 can be expanded and contracted in the longitudinal direction by providing a gap (gap) corresponding to the temperature characteristic expansion and contraction of the light guide holder 5 in the longitudinal direction. Therefore, the light guide 4 and the light guide holder 5 are not changed in the height direction and the short direction, that is, the illumination characteristics are not changed. Further, since the holder 7 is fixed in the longitudinal direction to the fastening portion 806 on the plate-like member 8 by the screw 10, the heat dissipation effect does not change. Furthermore, the distance between the plate-like member 8, the heat transfer body 9, the substrate 2, the light emitting element 1, the holder, and the optical filter 6 is constant at both normal temperature and high temperature. The distance is constant (when the expansion rate is close).

すなわち、実施の形態1に係る光源装置は、導光体ホルダー5によって遮光される部分は一定であり、導光体4の端部に発生する不要な迷光の抑制効果は一定に保たれる。一方、発光部3及び光学フィルタ6の相対距離も一定に保たれていることにより、発光部3からの光の変換機能は一定に保たれる。この構造によって、温度変化による導光体4の伸縮による照明特性や放熱特性の変化は生じない。   That is, in the light source device according to Embodiment 1, the portion shielded by the light guide holder 5 is constant, and the effect of suppressing unnecessary stray light generated at the end of the light guide 4 is kept constant. On the other hand, since the relative distance between the light emitting unit 3 and the optical filter 6 is also kept constant, the function of converting light from the light emitting unit 3 is kept constant. With this structure, changes in illumination characteristics and heat dissipation characteristics due to expansion and contraction of the light guide 4 due to temperature changes do not occur.

また、実施の形態1に係る光源装置は、図示は省略するが、導光体ホルダー5の端部とホルダー7とを接触させずに、ホルダー7が、第1開口の内部で若しくは第1開口の上で導光体ホルダー5の端部が長手方向に伸縮し、ホルダー7が、導光体ホルダー5の端部の伸縮によって導光体4の端面4aが移動する範囲外で、光学フィルタ6を支持するようにしてもよい。換言すると、実施の形態1に係る光源装置は、ホルダー7が、第1中空部内で導光体ホルダー5の端部を摺動可能に保持する、又は、導光体ホルダー5の端部が、第1中空部内で長手方向に伸縮するといえる。次の図20及び図21に示す光源装置も同様である。   Although the light source device according to Embodiment 1 is not illustrated, the holder 7 can be placed inside the first opening or the first opening without bringing the end of the light guide holder 5 into contact with the holder 7. The end of the light guide holder 5 expands and contracts in the longitudinal direction, and the optical filter 6 is outside the range in which the end surface 4a of the light guide 4 moves due to the expansion and contraction of the end of the light guide holder 5. May be supported. In other words, in the light source device according to Embodiment 1, the holder 7 slidably holds the end of the light guide holder 5 in the first hollow portion, or the end of the light guide holder 5 is It can be said that it expands and contracts in the longitudinal direction within the first hollow portion. The same applies to the light source devices shown in FIGS.

図20及び図21に示す光源装置は、ホルダー7が、その内部に、第1開口側から第2開口側に向かって順に径が大きくなる第1中空部,第2中空部を有し、この第2中空部内で光学フィルタ6を支持している。詳しくは、図20では第1中空部と第2中空部との間に生じた段差部分、若しくは、第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。図21では第1中空部と第2中空部との間に生じた段差部分に光学フィルタ6が形成されている。   The light source device shown in FIGS. 20 and 21 has a holder 7 having a first hollow portion and a second hollow portion in which the diameter increases in order from the first opening side to the second opening side. The optical filter 6 is supported in the second hollow portion. Specifically, in FIG. 20, the optical filter 6 is formed in the stepped portion generated between the first hollow portion and the second hollow portion, or the stepped portion generated between the second hollow portion and the third hollow portion. ing. In FIG. 21, the optical filter 6 is formed in a step portion generated between the first hollow portion and the second hollow portion.

図20及び図21に示す光源装置は、図18及び図19に示す光源装置のように、導光体4(導光体ホルダー5)の膨脹が最大となった場合に、第1中空部と第2中空部に生じた段差部分に、導光体4の端面4a及び導光体ホルダー5の端面が接触するか若しくは接触直前となるように、導光体ホルダー5とホルダー7とを配置することはできないが、最大の膨張時に、導光体4の端面4a及び導光体ホルダー5の端面を第2中空部に進入しないように、導光体ホルダー5とホルダー7とを配置すればよい(図20)。なお、図21の場合は、導光体4の端面4a及び導光体ホルダー5の端面を第2中空部に進入してもよいが、光学フィルタ6と接触しないようにする必要がある。   The light source device shown in FIGS. 20 and 21 is similar to the light source device shown in FIGS. 18 and 19 when the expansion of the light guide 4 (light guide holder 5) is maximized. The light guide holder 5 and the holder 7 are arranged so that the end face 4a of the light guide 4 and the end face of the light guide holder 5 are in contact with or just before the step formed in the second hollow portion. However, the light guide holder 5 and the holder 7 may be arranged so that the end face 4a of the light guide 4 and the end face of the light guide holder 5 do not enter the second hollow portion at the time of maximum expansion. (FIG. 20). In the case of FIG. 21, the end surface 4 a of the light guide 4 and the end surface of the light guide holder 5 may enter the second hollow portion, but it is necessary not to contact the optical filter 6.

図1〜図21を用いて説明した実施の形態1に係る光源装置及び実施の形態1に係る反射板支持構造は、各構成を適宜入れ替えて実施することは可能である。この入れ替えは、後述の実施の形態2に係る光源装置(反射板支持構造)及び実施の形態3に係る光源装置(反射板支持構造)と実施の形態1に係る光源装置及び実施の形態1に係る反射板支持構造との間でも成立する。もちろん、後述の実施の形態2に係る光源装置(反射板支持構造)と後述の実施の形態3に係る光源装置(反射板支持構造)との間でも成立する。   The light source device according to Embodiment 1 and the reflector support structure according to Embodiment 1 described with reference to FIGS. 1 to 21 can be implemented by appropriately replacing each configuration. This replacement is applied to the light source device (reflector support structure) according to the second embodiment and the light source device (reflector support structure) according to the third embodiment and the light source device according to the first embodiment and the first embodiment. This also holds true with such a reflector support structure. Of course, this also holds between a light source device (reflector support structure) according to a second embodiment described later and a light source apparatus (reflector support structure) according to third embodiment described later.

実施の形態1では、ホルダー7が、第1中空部内で導光体ホルダー5の端部を摺動可能に保持しているものの図を用いて説明したが、導光体ホルダー5は板状部材8に載置されており、ホルダー7によらずに自立しているので、ホルダー7と導光体ホルダー5とを接触させずに、導光体ホルダー5の端部を、ホルダー7の第1中空部内で若しくはホルダー7の第1中空部上で長手方向に伸縮するようにしてもよい。   In the first embodiment, the holder 7 has been described with reference to the drawing in which the end portion of the light guide holder 5 is slidably held in the first hollow portion. However, the light guide holder 5 is a plate-like member. Since the holder 7 and the light guide holder 5 are not brought into contact with each other, the end of the light guide holder 5 is attached to the first of the holder 7. You may make it expand-contract in a longitudinal direction within a hollow part or on the 1st hollow part of the holder 7. FIG.

ここで、実施の形態1に係る光源装置の板状部材8に関して特化した説明を行う。板状部材8(筐体)は、矩形形状を有する底部(底面)の短手方向の中央部に形成された二つの長孔8bと、二つの長孔8bの間に形成された嵌合孔8cと、底面に長手方向に沿って形成された反射光通過孔807(アパーチャ)と、ネジ穴805と導光体ホルダー固定部802と反射板支持部801と、締結部806と、締結部806とを備え、導光体ホルダー5及び反射板11を長手方向かつ短手方向かつ高さ方向に固定し、ホルダー7及び伝熱体9を長手方向かつ短手方向かつ高さ方向に固定する。   Here, a specialized description will be given regarding the plate-like member 8 of the light source device according to the first embodiment. The plate-like member 8 (housing) has two elongated holes 8b formed at the center in the short direction of the bottom (bottom surface) having a rectangular shape, and a fitting hole formed between the two elongated holes 8b. 8c, a reflected light passage hole 807 (aperture) formed in the bottom surface along the longitudinal direction, a screw hole 805, a light guide holder fixing portion 802, a reflector support portion 801, a fastening portion 806, and a fastening portion 806 The light guide holder 5 and the reflector 11 are fixed in the longitudinal direction, the lateral direction, and the height direction, and the holder 7 and the heat transfer body 9 are fixed in the longitudinal direction, the lateral direction, and the height direction.

長孔8bは板状部材8底面にあり、長手方向の片側端部かつ短手方向で反射光通過孔807と締結部806の間かつ導光体ホルダー5底面の短手方向中央に位置する長手方向に長い長孔であり、導光体ホルダー5の第1突起部5bが挿入されることにより、導光体ホルダー5を短手方向の位置を固定するものである。嵌合孔8cは板状部材8底面にあり、長手方向の長孔8bがある側と逆側端部かつ短手方向で反射光通過孔807と締結部806の間かつ導光体ホルダー5底面の短手方向中央位置に位置するものであり、導光体ホルダー5の第2突起部5cが挿入されることにより、導光体ホルダー5を短手方向と長手方向の位置を固定するものである(図8)。   The long hole 8b is located on the bottom surface of the plate-like member 8 and is located at one side end in the longitudinal direction and in the short direction, between the reflected light passage hole 807 and the fastening portion 806 and at the center in the short direction of the bottom surface of the light guide holder 5. It is a long hole in the direction, and the light guide holder 5 is fixed at the position in the short direction by inserting the first protrusion 5b of the light guide holder 5. The fitting hole 8c is on the bottom surface of the plate-like member 8, and is located between the reflected light passing hole 807 and the fastening portion 806 in the end opposite to the side having the long hole 8b in the longitudinal direction and in the short direction, and the bottom surface of the light guide holder 5 The light guide holder 5 is fixed at the position in the short side and the long side by inserting the second protrusion 5c of the light guide holder 5. Yes (Fig. 8).

反射光通過孔807は板状部材8底面の長手方向に沿って形成された穴であり、読取対象の画像情報(照射した光の読取対象における散乱反射光)を撮像体(レンズなどの結像光学系及びイメージセンサなどの受光部)に伝え(図10)、それ以外の不要な光を抑制する働きを持つ。導光体ホルダー固定部802は板状部材8側側面に伸び、反射光通過孔807に対して反射板11の逆側に位置し、導光体ホルダー5を高さ方向に固定する働きを持つ。反射板支持部801は長手方向に複数設けられ、短手方向に反射光通過孔807の外側に位置し、反射板11を精度良く保持する働きを持つ。締結部806は反射光通過孔807に対して筐体の長手方向の外側に位置し、ネジ10により、基板2及びホルダー7及び伝熱体9を板状部材8に固定するものである。   The reflected light passage hole 807 is a hole formed along the longitudinal direction of the bottom surface of the plate-like member 8, and the image information (scattered reflected light in the read target of the irradiated light) of the reading target is imaged on the imaging body (lens or the like). This is transmitted to a light receiving unit such as an optical system and an image sensor (FIG. 10), and functions to suppress other unnecessary light. The light guide holder fixing portion 802 extends to the side surface of the plate-like member 8 and is located on the opposite side of the reflection plate 11 with respect to the reflected light passage hole 807 and has a function of fixing the light guide holder 5 in the height direction. . A plurality of reflecting plate support portions 801 are provided in the longitudinal direction, are positioned outside the reflected light passage hole 807 in the short direction, and have a function of holding the reflecting plate 11 with high accuracy. The fastening portion 806 is located outside the longitudinal direction of the housing with respect to the reflected light passage hole 807, and fixes the substrate 2, the holder 7, and the heat transfer body 9 to the plate-like member 8 with the screw 10.

板状部材8における反射板支持部801,導光体ホルダー固定部802,板状端部803,板状端部804,締結部806,一体端部808は、放熱板として機能も果たしている。特に、板状端部803,板状端部804,締結部806,一体端部808は、板状部材8の短辺側壁部(締結部806)の側壁部分で連続していてもよい。また、短辺側壁部(締結部806)を延長して長手方向に折り曲げ、長辺側壁部(板状端部803)に対し斜面部801と反対の方向に対向して長手方向に延在してもよい。また、長辺側壁部に連続し、端辺方向に折り曲げされ、板状部材8の底面と対向する方向に延在して(折り曲げて)もよい。   The reflection plate support portion 801, the light guide holder fixing portion 802, the plate-like end portion 803, the plate-like end portion 804, the fastening portion 806, and the integral end portion 808 in the plate-like member 8 also function as a heat sink. In particular, the plate-like end portion 803, the plate-like end portion 804, the fastening portion 806, and the integral end portion 808 may be continuous at the side wall portion of the short side wall portion (fastening portion 806) of the plate-like member 8. Further, the short side wall portion (fastening portion 806) is extended and bent in the longitudinal direction, and the long side wall portion (plate-shaped end portion 803) extends in the longitudinal direction so as to face the direction opposite to the inclined surface portion 801. May be. Further, it may be continuous with the long side wall portion, bent in the end side direction, and extended (folded) in a direction facing the bottom surface of the plate-like member 8.

実施の形態2.
この発明の実施の形態2について図22〜図40を用いて説明する。実施の形態2は、導光体4の端部が屈曲したものを説明する。特に、導光体4の端部が板状部材8(板状部材8a)側に屈曲し、発光部3が、板状部材8(板状部材8a)上に、直接又は伝熱体9を介して締結されるものと、発光部3が、板状部材8(板状部材8a)に形成された孔(後述の発光部用孔809や発光部用切り欠き)を介して取り付けられたものとを説明する。実施の形態2では、実施の形態1と異なる部分を中心に説明を行う。実施の形態2に係る光源装置の導光体4及び導光体ホルダー5の厚み方向の膨脹と収縮とを考慮して、導光体4,導光体ホルダー5,ホルダー7を配置していることはいうまでもない。例えば、膨脹が最大のときに、導光体ホルダー5(導光体4)がホルダー7を破損させないように、導光体ホルダー5(導光体4)及びホルダー7の寸法を設定するなどが想定される。しかし、導光体4及び導光体ホルダー5の長手方向の膨脹と収縮とに比べて影響が非常に少ないので、詳細説明は省略する。
Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIGS. Embodiment 2 explains what the edge part of the light guide 4 bent. In particular, the end of the light guide 4 is bent toward the plate-like member 8 (plate-like member 8a), and the light-emitting portion 3 is directly or directly disposed on the plate-like member 8 (plate-like member 8a). And the light-emitting portion 3 attached through holes formed in the plate-like member 8 (plate-like member 8a) (light-emitting portion holes 809 and light-emitting portion notches described later). Will be explained. In the second embodiment, the description will focus on the parts different from the first embodiment. In consideration of expansion and contraction in the thickness direction of the light guide 4 and the light guide holder 5 of the light source device according to Embodiment 2, the light guide 4, the light guide holder 5, and the holder 7 are arranged. Needless to say. For example, the dimensions of the light guide holder 5 (light guide 4) and the holder 7 are set so that the light guide holder 5 (light guide 4) does not damage the holder 7 when the expansion is maximum. is assumed. However, since the influence is very small compared with the expansion and contraction of the light guide 4 and the light guide holder 5 in the longitudinal direction, the detailed description is omitted.

図23(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図23(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図25(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図25(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図27(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図29(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図である。   23 (a) and 23 (b) are diagrams corresponding to a cross section around the light emitting unit of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIG. FIGS. 25 (a) and 25 (b) are diagrams corresponding to a cross section around the light emitting unit of the light source device taken along the dashed line EF in FIG. 5, and FIG. 25 (c) is a diagram of the light source device guided along the dashed line EF in FIG. FIGS. 27A and 27B are diagrams corresponding to a cross section near the center of the light body, FIGS. 27A and 27B are diagrams corresponding to a cross section around the light-emitting portion of the light source device along the alternate long and short dash line EF in FIGS. It is a figure equivalent to the light emission part periphery cross section of the light source device by the dashed-dotted line EF.

図30(a)〜図30(d)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当するホルダー7部分のみの断面イメージ図、図31(a)〜図31(d)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当するホルダー7部分のみの断面イメージ図である。図32(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図32(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図33(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図33(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図である。図23,図25,図27,図29,図32,図33は、ホルダー7の第1開口上に導光体ホルダー5が配置された形状のバリエーションを示すものである。   30 (a) to 30 (d) are cross-sectional image views of only the holder 7 portion corresponding to a cross section of the periphery of the light emitting unit of the light source device taken along one-dot chain line EF of FIG. 5, and FIGS. 5 is a cross-sectional image view of only the holder 7 portion corresponding to the light-emitting portion peripheral cross-section of the light source device by a one-dot chain line EF. 32 (a) and 32 (b) are diagrams corresponding to a cross section around the light emitting unit of the light source device taken along the alternate long and short dash line EF of FIG. 5, and FIG. 33 (a) and 33 (b) are diagrams corresponding to a cross-section around the light emitting unit of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIG. It is a figure equivalent to a light body center vicinity cross section. FIGS. 23, 25, 27, 29, 32, and 33 show variations in the shape in which the light guide holder 5 is disposed on the first opening of the holder 7.

図34(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図34(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図35(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図35(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図36(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図36(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図、図37(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図37(c)は図5の一点鎖線EFによる光源装置の導光体中央付近断面に相当する図である。図34〜図37は、ホルダー7の第1開口に導光体ホルダー5が挿入された形状のバリエーションを示すものである。   34 (a) and 34 (b) are views corresponding to a cross section around the light emitting unit of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIG. FIGS. 35 (a) and 35 (b) are diagrams corresponding to a cross section around the light emitting unit of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIG. FIGS. 36 (a) and 36 (b) are diagrams corresponding to a cross section around the light emitting unit of the light source device along the dashed line EF in FIG. 5, and FIG. 36 (c) is a dashed line EF in FIG. FIG. 37A and FIG. 37B are diagrams corresponding to the cross section around the light emitting portion of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIG. 5 is a view corresponding to a cross section near the center of the light guide of the light source device taken along the five-dot chain line EF. 34 to 37 show variations of the shape in which the light guide holder 5 is inserted into the first opening of the holder 7.

図38(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図39(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図、図40(a)(b)は図5の一点鎖線EFによる光源装置の発光部周辺断面に相当する図である。図38,図39,図40は、導光体4の端面4aの形状のバリエーションを示すものである。   38 (a) and 38 (b) are diagrams corresponding to a cross-section around the light emitting unit of the light source device taken along the alternate long and short dash line EF in FIG. 5, and FIGS. FIGS. 40A and 40B are views corresponding to a cross section of the light emitting unit and a cross section of the light source unit taken along the alternate long and short dash line EF in FIG. 38, 39, and 40 show variations in the shape of the end face 4a of the light guide 4. FIG.

図22〜図40において、806gは直接又は伝熱体9を介して発光部3(基板2)が締結される板状部材8(板状部材8a)上の領域である締結部、809は、板状部材8(板状部材8a)に形成された発光部用孔である。発光部3(基板2)は、発光部用孔809を介して板状部材8に取り付けられる。なお、発光部用孔809は、発光部用孔809の周囲が板状部材8に囲まれた完全な孔である必要はなく、板状部材8の外形から内側に切り欠かれた発光部用切り欠き809でもよい。本願では、発光部用孔809は発光部用切り欠き809を含むものとして説明を行う。発光部用切り欠き809の図示は省略する。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   22 to 40, 806 g is a fastening portion that is an area on the plate-like member 8 (plate-like member 8 a) to which the light-emitting portion 3 (substrate 2) is fastened directly or via the heat transfer body 9, It is the hole for light emission parts formed in the plate-shaped member 8 (plate-shaped member 8a). The light emitting unit 3 (substrate 2) is attached to the plate-like member 8 through the light emitting unit hole 809. The light emitting portion hole 809 does not have to be a complete hole surrounded by the plate member 8 around the light emitting portion hole 809, and is for the light emitting portion that is cut out inward from the outer shape of the plate member 8. A notch 809 may be used. In the present application, the light emitting portion hole 809 is described as including the light emitting portion notch 809. The illustration of the light emitting portion notch 809 is omitted. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図22は、実施の形態2に係る光源装置の筐体となる板状部材8aを示している。図22には、板状部材8aの折り曲げ後の板状部材8に、仮想的に、導光体4,導光体ホルダー5,ホルダー7を載置した場合のイメージを示している。図23に示すように、実施の形態2に係る光源装置は、導光体4の端部が板状部材8(板状部材8g)側に屈曲しており、板状部材8g(板状部材8)上に形成(締結)された発光部3(発光素子1)から出た光が、板状部材8(板状部材8g)側に端部が屈曲した導光体4の端面4a(光入射部4a)から入射される。この後の基本動作は、実施の形態1に係る光源装置と同様である。   FIG. 22 shows a plate-like member 8a that serves as a casing of the light source device according to the second embodiment. FIG. 22 shows an image when the light guide 4, the light guide holder 5, and the holder 7 are virtually placed on the plate-like member 8 after the plate-like member 8 a is bent. As shown in FIG. 23, in the light source device according to Embodiment 2, the end portion of the light guide 4 is bent toward the plate-like member 8 (plate-like member 8g), and the plate-like member 8g (plate-like member). 8) The light emitted from the light emitting portion 3 (light emitting element 1) formed (fastened) on the end surface 4a (light) of the light guide 4 whose end is bent toward the plate member 8 (plate member 8g) side Incident from the incident part 4a). Subsequent basic operations are the same as those of the light source device according to the first embodiment.

次に、図23を用いて、実施の形態2に係る光源装置は、ホルダー7の第1開口及び第2開口の間に光学フィルタ6を発光部3と所定の間隔を維持して支持するものであること、さらに、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないものであること説明する。図23(a)は導光体4の長手方向の長さが最も短い場合を示している。図23(b)は導光体4の長手方向の長さが最も長い場合を示している。図23に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部を有し、第1中空部内で光学フィルタ6を支持している。詳しくは、第1中空部と第2中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、段差部分の厚みは光学フィルタ6の厚み以上とする。図23(c)は、導光体ホルダー5の第2突起部5cと嵌合孔5dとを副走査方向(短手方向)の同じ断面に配置されるように設定していること示している。   Next, referring to FIG. 23, the light source device according to Embodiment 2 supports the optical filter 6 between the first opening and the second opening of the holder 7 while maintaining a predetermined distance from the light emitting unit 3. Furthermore, it will be described that the end face 4a (light incident portion 4a) of the light guide 4 and the light emitting portion 3 (optical filter 6) do not contact each other. FIG. 23A shows a case where the length of the light guide 4 in the longitudinal direction is the shortest. FIG. 23B shows a case where the length of the light guide 4 in the longitudinal direction is the longest. The holder 7 shown in FIG. 23 has a first hollow portion and a second hollow portion in which the diameter decreases in order from the first opening side to the second opening side, and the optical filter 6 is provided in the first hollow portion. Support. Specifically, the optical filter 6 is formed in a step portion generated between the first hollow portion and the second hollow portion. Note that the thickness of the stepped portion is equal to or greater than the thickness of the optical filter 6. FIG. 23C shows that the second protrusion 5c and the fitting hole 5d of the light guide holder 5 are set so as to be arranged in the same cross section in the sub-scanning direction (short direction). .

図23(b)に示すように、導光体4(導光体ホルダー5)の膨脹が最大となった場合に、第1開口に、導光体4の端面4a及び導光体ホルダー5の端面が接触するか若しくは接触直前となるように、導光体ホルダー5とホルダー7とを配置することで、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないようにすることができる。また、図23(a)(b)に示すように、導光体ホルダー5は、第1開口の縁とホルダー7に対向する押し当て面部をそれぞれ有し、これらの押し当て面部は、導光体ホルダー5の摺動範囲(移動範囲)を制限するようにしてもよい(図23(b))。なお、導光体4の膨脹が最大となったときに押し当て面部が第1開口の縁に接触直前となるようにしてもよい。この場合、押し当て面部は押し当て面部ではなく対向面部となる。   As shown in FIG. 23B, when the expansion of the light guide 4 (light guide holder 5) is maximized, the end face 4a of the light guide 4 and the light guide holder 5 are formed in the first opening. By arranging the light guide holder 5 and the holder 7 so that the end faces come into contact or just before contact, the end face 4a (light incident part 4a) and the light emitting part 3 (optical filter 6) of the light guide 4 are arranged. Can be kept out of contact. As shown in FIGS. 23 (a) and 23 (b), the light guide holder 5 has a pressing surface portion facing the edge of the first opening and the holder 7, respectively. You may make it restrict | limit the sliding range (movement range) of the body holder 5 (FIG.23 (b)). In addition, when the expansion of the light guide 4 becomes maximum, the pressing surface portion may be immediately before contacting the edge of the first opening. In this case, the pressing surface portion is not the pressing surface portion but the facing surface portion.

図24は、実施の形態2に係る光源装置の筐体となる板状部材8aを示している。図24の板状部材8aには、発光部用孔809(発光部用切り欠き809)が形成されている。図25に示すように、実施の形態2に係る光源装置は、導光体4の端部が板状部材8(発光部用孔809)側に屈曲しており、発光部用孔809(板状部材8)を介して発光部3(発光素子1)から出た光が、板状部材8(発光部用孔809)側に端部が屈曲した導光体4の端面4a(光入射部4a)から入射される。この後の基本動作は、実施の形態1に係る光源装置と同様である。導光体4の屈曲の主要部分は、実施の形態2ではXZ平面上に存在している。実施の形態2に係る光源装置の導光体4においても、光散乱パターン4cは少なくとも画像読取装置の主走査方向の有効読取領域に対応する部分に少なくとも形成されておればよい。また、導光体4の屈曲部分から、他の部分よりも多め又は少なめに光を出射させるようにすることで、有効読取領域の端部(ホルダー7の近傍)における輝度などの調整を行ってもよい。   FIG. 24 shows a plate-like member 8a that serves as a casing of the light source device according to the second embodiment. 24 is formed with a light emitting portion hole 809 (light emitting portion notch 809). As shown in FIG. 25, in the light source device according to Embodiment 2, the end portion of the light guide 4 is bent toward the plate-like member 8 (light emitting portion hole 809), and the light emitting portion hole 809 (plate) The light emitted from the light emitting part 3 (light emitting element 1) via the shaped member 8) has an end face 4a (light incident part) of the light guide 4 whose end is bent toward the plate shaped member 8 (light emitting part hole 809) side. 4a). Subsequent basic operations are the same as those of the light source device according to the first embodiment. The main part of the bending of the light guide 4 exists on the XZ plane in the second embodiment. Also in the light guide 4 of the light source device according to Embodiment 2, the light scattering pattern 4c only needs to be formed at least in a portion corresponding to the effective reading region in the main scanning direction of the image reading device. Further, by adjusting the light intensity at the end of the effective reading area (in the vicinity of the holder 7) by emitting more or less light from the bent portion of the light guide 4 than other portions. Also good.

図24及び図25における実施の形態2に係る光源装置は、ホルダー7の第1開口及び第2開口の間に光学フィルタ6を発光部3と所定の間隔を維持して支持するものである。さらに、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないものである。この説明に関しては、図23を用いて説明したものと基本的には同じであるので、詳細説明は省略する。図25(a)(b)(c)は、それぞれ図23(a)(b)(c)に相当する。相違点は、図23では、発光部3が板状部材8g上に形成されていたが、図25では、発光部3(発光素子1)が、発光部用孔809に挿入されたものとなっている。図25と図23との対比を容易にするために、伝熱体9が筐体である板状部材8(発光部用孔809)と接触していないように図示しているが、実際は、伝熱体9と板状部材8とを直接又は間接的に接触させて熱を伝導させてもよいし、伝熱体9を設けなくてもよい。   The light source device according to Embodiment 2 in FIGS. 24 and 25 supports the optical filter 6 between the first opening and the second opening of the holder 7 while maintaining a predetermined distance from the light emitting unit 3. Furthermore, the end surface 4a (light incident part 4a) of the light guide 4 and the light emitting part 3 (optical filter 6) do not come into contact with each other. Since this description is basically the same as that described with reference to FIG. 23, detailed description thereof is omitted. FIGS. 25A, 25B, and 25C correspond to FIGS. 23A, 23B, and 23C, respectively. 23 is different from FIG. 23 in that the light emitting portion 3 is formed on the plate-like member 8g. In FIG. 25, the light emitting portion 3 (light emitting element 1) is inserted into the light emitting portion hole 809. ing. In order to facilitate the comparison between FIG. 25 and FIG. 23, the heat transfer body 9 is illustrated so as not to be in contact with the plate-like member 8 (light emitting part hole 809) that is a housing. The heat transfer body 9 and the plate-like member 8 may be brought into direct or indirect contact to conduct heat, or the heat transfer body 9 may not be provided.

図26は、実施の形態2に係る光源装置の筐体となる板状部材8aを示している。図26には、板状部材8aの折り曲げ後の板状部材8に、仮想的に、導光体4,導光体ホルダー5,ホルダー7を載置した場合のイメージを示している。図27に示すように、実施の形態2に係る光源装置は、導光体4の端部が板状部材8(板状部材8g又は発光部用孔809)側に屈曲している。図26及び図27は、それぞれ図22及び図23,図24及び図25に対応するものであり、ホルダー7と反対側における導光体4の屈曲部分にも導光体ホルダー5で覆われている場合を示している。図27(a)は板状部材8が板状部材8gの領域を有する場合(図22及び図23に相当)である。図27(b)は板状部材8が発光部用孔809を有する場合(図22及び図23に相当)である。   FIG. 26 shows a plate-like member 8a that serves as a casing of the light source device according to the second embodiment. FIG. 26 shows an image when the light guide 4, the light guide holder 5, and the holder 7 are virtually placed on the plate-like member 8 after the plate-like member 8 a is bent. As shown in FIG. 27, in the light source device according to Embodiment 2, the end portion of the light guide 4 is bent toward the plate-like member 8 (plate-like member 8g or light emitting portion hole 809). 26 and 27 correspond to FIGS. 22, 23, 24, and 25, respectively, and the bent portion of the light guide 4 on the side opposite to the holder 7 is also covered with the light guide holder 5. Shows the case. FIG. 27A shows a case where the plate-like member 8 has a region of the plate-like member 8g (corresponding to FIGS. 22 and 23). FIG. 27B shows a case where the plate-like member 8 has a light emitting portion hole 809 (corresponding to FIGS. 22 and 23).

図28は、実施の形態2に係る光源装置の筐体となる板状部材8aを示している。図28には、板状部材8aの折り曲げ後の板状部材8に、仮想的に、導光体4,導光体ホルダー5,ホルダー7を載置した場合のイメージを示している。図29に示すように、実施の形態2に係る光源装置は、導光体4の端部が板状部材8(板状部材8g又は発光部用孔809)側に屈曲している。図28及び図29は、図26及び図27に対応するものであり、ホルダー7と反対側における導光体4の屈曲部分にも導光体ホルダー5で覆われ、さらに、その部分の導光体ホルダー5がホルダー7に覆われ、接近、又は、摺動可能に接触している場合を示している。換言すると、ホルダー7の第1中空部に導光体ホルダー5(導光体4)の端部が挿入され、導光体ホルダー5(導光体4)がホルダー7へ摺動可能(伸縮)に接触している場合を示しているといえる。図29(a)は板状部材8が板状部材8gの領域を有する場合(図27(a)に相当)である。図29(b)は板状部材8が発光部用孔809を有する場合(図27(b)に相当)である。   FIG. 28 shows a plate-like member 8a that serves as a casing of the light source device according to the second embodiment. FIG. 28 shows an image when the light guide 4, the light guide holder 5, and the holder 7 are virtually placed on the plate-like member 8 after the plate-like member 8 a is bent. As shown in FIG. 29, in the light source device according to Embodiment 2, the end portion of the light guide 4 is bent toward the plate-like member 8 (plate-like member 8g or light emitting portion hole 809). FIG. 28 and FIG. 29 correspond to FIG. 26 and FIG. 27, the bent portion of the light guide 4 on the side opposite to the holder 7 is also covered with the light guide holder 5, and the light guide of that portion is also provided. The case where the body holder 5 is covered with the holder 7 and is in close contact or slidable is shown. In other words, the end of the light guide holder 5 (light guide 4) is inserted into the first hollow portion of the holder 7, and the light guide holder 5 (light guide 4) is slidable (expandable) to the holder 7. It can be said that it shows the case where it touches. FIG. 29A shows a case where the plate-like member 8 has a region of the plate-like member 8g (corresponding to FIG. 27A). FIG. 29B shows a case where the plate-like member 8 has a light emitting portion hole 809 (corresponding to FIG. 27B).

図30及び図31を用いて、図22〜図29に記載のホルダー7の説明とその変形例の説明を行う。図30(a)(b)は、図22〜図29に記載のホルダー7を示している。図30(a)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部,第3中空部を有し、第2中空部内で光学フィルタ6を支持している。詳しくは、第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、第1中空部及び第2中空部は、それぞれの径の中心軸が交差する位置に配置されている。段差部分の厚みは光学フィルタ6の厚み以上とする。   The holder 7 described in FIGS. 22 to 29 and its modification will be described with reference to FIGS. 30 and 31. 30 (a) and 30 (b) show the holder 7 described in FIGS. The holder 7 shown in FIG. 30 (a) has a first hollow portion, a second hollow portion, and a third hollow portion, the diameter of which decreases in order from the first opening side to the second opening side, The optical filter 6 is supported in the second hollow portion. Specifically, the optical filter 6 is formed in a step portion generated between the second hollow portion and the third hollow portion. In addition, the 1st hollow part and the 2nd hollow part are arrange | positioned in the position where the central axis of each diameter cross | intersects. The thickness of the step portion is equal to or greater than the thickness of the optical filter 6.

図30(b)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部を有し、第1中空部内で光学フィルタ6を支持している。詳しくは、第1中空部と第2中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、段差部分の厚みは光学フィルタ6の厚み以上とする。   The holder 7 shown in FIG. 30 (b) has a first hollow portion and a second hollow portion, the diameters of which decrease in order from the first opening side to the second opening side. The optical filter 6 is supported. Specifically, the optical filter 6 is formed in a step portion generated between the first hollow portion and the second hollow portion. Note that the thickness of the stepped portion is equal to or greater than the thickness of the optical filter 6.

図30(c)(d)に示すホルダー7は、それぞれ、図30(a)(b)に示すホルダー7の変形例である。図30(c)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部,第3中空部,第4中空部を有し、第2中空部又は第3中空部内で光学フィルタ6を支持している。詳しくは、第2中空部と第3中空部との間に生じた段差部分又は第3中空部と第4中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、第1中空部及び第2中空部は、それぞれの径の中心軸が交差する位置に配置されている。段差部分の厚みは光学フィルタ6の厚み以上とする。   The holders 7 shown in FIGS. 30 (c) and 30 (d) are modifications of the holder 7 shown in FIGS. 30 (a) and 30 (b). The holder 7 shown in FIG. 30 (c) has a first hollow portion, a second hollow portion, a third hollow portion, and a fourth hollow in the inside thereof, the diameter of which decreases in order from the first opening side toward the second opening side. The optical filter 6 is supported in the second hollow portion or the third hollow portion. Specifically, the optical filter 6 is formed in a stepped portion generated between the second hollow portion and the third hollow portion or a stepped portion generated between the third hollow portion and the fourth hollow portion. In addition, the 1st hollow part and the 2nd hollow part are arrange | positioned in the position where the central axis of each diameter cross | intersects. The thickness of the step portion is equal to or greater than the thickness of the optical filter 6.

図30(d)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が小さくなる第1中空部,第2中空部,第3中空部を有し、第1中空部又は第2中空部内で光学フィルタ6を支持している。詳しくは、第1中空部と第2中空部との間に生じた段差部分又は第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、少なくとも、第1中空部と第2中空部との間に生じた段差部分の厚みは光学フィルタ6の厚み以上とする。なお、図30(a)(c)に示す第1中空部の内壁形状は、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触して導光体ホルダー5が摺動可能である、若しくは、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触せずに、導光体ホルダー5が伸縮可能である形状である必要がある。   The holder 7 shown in FIG. 30 (d) has a first hollow portion, a second hollow portion, and a third hollow portion, the diameter of which decreases in order from the first opening side to the second opening side, The optical filter 6 is supported in the first hollow portion or the second hollow portion. Specifically, the optical filter 6 is formed in a stepped portion generated between the first hollow portion and the second hollow portion or a stepped portion generated between the second hollow portion and the third hollow portion. Note that at least the thickness of the step formed between the first hollow portion and the second hollow portion is equal to or greater than the thickness of the optical filter 6. The inner wall shape of the first hollow portion shown in FIGS. 30A and 30C is such that the portion of the light guide holder 5 inserted into the holder 7 comes into contact with the holder 7 so that the light guide holder 5 can slide. Alternatively, the light guide holder 5 needs to have a shape that allows the light guide holder 5 to be expanded and contracted without the portion inserted into the holder 7 of the light guide holder 5 being in contact with the holder 7.

図31(a)(b),図31(c)(d)に示すホルダー7は、それぞれ、図30(a)(b)に示すホルダー7の変形例である。図31(a)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が大きくなる第1中空部,第2中空部,第3中空部を有し、この第3中空部内で光学フィルタ6を支持している。詳しくは、図31(a)では第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、第1中空部及び第2中空部は、それぞれの径の中心軸が交差する位置に配置されている。なお、図31(a)(c)に示す第1中空部の内壁形状は、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触して導光体ホルダー5が摺動可能である、若しくは、導光体ホルダー5のホルダー7に挿入された部分がホルダー7と接触せずに、導光体ホルダー5が伸縮可能である形状である必要がある。   The holders 7 shown in FIGS. 31 (a), 31 (b), 31 (c) and 31 (d) are modifications of the holder 7 shown in FIGS. 30 (a) and 30 (b), respectively. The holder 7 shown in FIG. 31 (a) has a first hollow portion, a second hollow portion, and a third hollow portion, the diameters of which increase in order from the first opening side toward the second opening side, The optical filter 6 is supported in the third hollow portion. Specifically, in FIG. 31A, the optical filter 6 is formed at a step portion generated between the second hollow portion and the third hollow portion. In addition, the 1st hollow part and the 2nd hollow part are arrange | positioned in the position where the central axis of each diameter cross | intersects. The inner wall shape of the first hollow portion shown in FIGS. 31 (a) and 31 (c) is such that the portion of the light guide holder 5 inserted into the holder 7 comes into contact with the holder 7 so that the light guide holder 5 can slide. Alternatively, the light guide holder 5 needs to have a shape that allows the light guide holder 5 to be expanded and contracted without the portion inserted into the holder 7 of the light guide holder 5 being in contact with the holder 7.

図31(b)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が大きくなる第1中空部,第2中空部を有し、この第2中空部内で光学フィルタ6を支持している。詳しくは、図31(a)では第1中空部と第2中空部との間に生じた段差部分に光学フィルタ6が形成されている。   The holder 7 shown in FIG. 31 (b) has a first hollow portion and a second hollow portion, the diameters of which increase in order from the first opening side toward the second opening side, and the inside of the second hollow portion. The optical filter 6 is supported. Specifically, in FIG. 31A, the optical filter 6 is formed at a step portion generated between the first hollow portion and the second hollow portion.

図31(c)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が大きくなる第1中空部,第2中空部,第3中空部を有し、第3中空部よりも径が小さい第4中空部が第3中空部と連通している。第3中空部内で光学フィルタ6を支持している。詳しくは、図31(c)では第2中空部と第3中空部との間に生じた段差部分又は第3中空部と第4中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、第1中空部及び第2中空部は、それぞれの径の中心軸が交差する位置に配置されている。   The holder 7 shown in FIG. 31 (c) has a first hollow portion, a second hollow portion, and a third hollow portion, the diameters of which increase in order from the first opening side toward the second opening side, A fourth hollow portion having a smaller diameter than the third hollow portion communicates with the third hollow portion. The optical filter 6 is supported in the third hollow portion. Specifically, in FIG. 31 (c), the optical filter 6 is formed in the stepped portion generated between the second hollow portion and the third hollow portion or the stepped portion generated between the third hollow portion and the fourth hollow portion. Has been. In addition, the 1st hollow part and the 2nd hollow part are arrange | positioned in the position where the central axis of each diameter cross | intersects.

図31(d)に示すホルダー7は、その内部に、第1開口側から第2開口側に向かって順に径が大きくなる第1中空部,第2中空部を有し、第2中空部よりも径が小さい第3中空部が第2中空部と連通している。第2中空部内で光学フィルタ6を支持している。詳しくは、図31(d)では第1中空部と第2中空部との間に生じた段差部分又は第2中空部と第3中空部との間に生じた段差部分に光学フィルタ6が形成されている。なお、図30(a)(c)及び図31(a)(c)に示す第1中空部以外の中空部(第1中空部,第2中空部,第3中空部,第4中空部)の内壁形状は、筒状の形状であれば発光部2からの光を遮らない限り、特に制限はない。   The holder 7 shown in FIG. 31 (d) has a first hollow portion and a second hollow portion whose diameters increase in order from the first opening side to the second opening side. The third hollow portion having a small diameter communicates with the second hollow portion. The optical filter 6 is supported in the second hollow portion. Specifically, in FIG. 31 (d), the optical filter 6 is formed in the stepped portion generated between the first hollow portion and the second hollow portion or the stepped portion generated between the second hollow portion and the third hollow portion. Has been. In addition, hollow parts other than the first hollow part shown in FIGS. 30 (a) (c) and 31 (a) (c) (first hollow part, second hollow part, third hollow part, fourth hollow part) As long as the inner wall shape is a cylindrical shape, there is no particular limitation as long as the light from the light emitting portion 2 is not blocked.

図32及び図33を用いて、ホルダー7と反対側における導光体4の屈曲部分から導光体4の端面4a(光入射部4a)まで露出させた場合を説明する。図32(a)(b)(c)は、それぞれ、図23(a)(b)(c)に対応し、図33(a)(b)(c)は、それぞれ、図25(a)(b)(c)に対応するので、共通部分の詳細説明は省略する。図32及び図33に記載の光源装置は、ホルダー7と反対側における導光体4の屈曲部分から導光体4の端面4a(光入射部4a)まで露出しているので、図32(b)及び図33(b)に示すように、導光体4の膨脹が最大のときに、導光体4の側面がホルダー7と接近又は接触することになるので、導光体4のこの部分を、対向面部又は押し当て面部としてもよい。   The case where it exposes from the bending part of the light guide 4 in the opposite side to the holder 7 to the end surface 4a (light incident part 4a) of the light guide 4 is demonstrated using FIG.32 and FIG.33. FIGS. 32 (a), (b), and (c) correspond to FIGS. 23 (a), (b), and (c), respectively, and FIGS. 33 (a), (b), and (c) respectively correspond to FIGS. (B) Since it corresponds to (c), detailed description of the common part is omitted. 32 and 33 are exposed from the bent portion of the light guide 4 on the side opposite to the holder 7 to the end surface 4a (light incident portion 4a) of the light guide 4, so that FIG. ) And FIG. 33 (b), when the expansion of the light guide 4 is maximum, the side surface of the light guide 4 approaches or comes into contact with the holder 7. It is good also as an opposing surface part or a pressing surface part.

図34及び図35を用いて、ホルダー7側における導光体4の屈曲部分から導光体4の端面4a(光入射部4a)までも導光体ホルダー5で覆い、第1中空部に挿入した場合を説明する。図34(a)(b)(c)は、それぞれ、図23(a)(b)(c)に対応し、図35(a)(b)(c)は、それぞれ、図25(a)(b)(c)に対応するので、共通部分の詳細説明は省略する。図34及び図35に記載の光源装置は、導光体4の屈曲部分のホルダー7側に沿って、図23及び図25に記載のものよりも薄い導光体ホルダー5が導光体4を覆っているので、ホルダー7に実施の形態1に係るものと同じ形状のものを使用することができる。   34 and 35, the bent portion of the light guide 4 on the holder 7 side to the end surface 4a (light incident portion 4a) of the light guide 4 are also covered with the light guide holder 5 and inserted into the first hollow portion. The case will be described. FIGS. 34 (a), (b), and (c) correspond to FIGS. 23 (a), (b), and (c), respectively, and FIGS. 35 (a), (b), and (c) respectively correspond to FIGS. (B) Since it corresponds to (c), detailed description of the common part is omitted. In the light source device described in FIGS. 34 and 35, the light guide holder 5 thinner than that shown in FIGS. 23 and 25 is provided with the light guide 4 along the holder 7 side of the bent portion of the light guide 4. Since it covers, the holder 7 having the same shape as that of the first embodiment can be used.

図36及び図37を用いて、ホルダー7と反対側における導光体4の屈曲部分から導光体4の端面4a(光入射部4a)まで露出させ、ホルダー7側における導光体4の屈曲部分から導光体4の端面4a(光入射部4a)までも導光体ホルダー5で覆い、第1中空部に挿入した場合を説明する。図36(a)(b)(c)は、それぞれ、図23(a)(b)(c)に対応し、図37(a)(b)(c)は、それぞれ、図25(a)(b)(c)に対応するので、共通部分の詳細説明は省略する。また、図36に記載の光源装置は、図32に記載の光源装置と図34に記載の光源装置と組み合わせたものであり、図37に記載の光源装置は、図33に記載の光源装置と図35に記載の光源装置と組み合わせたものである。   36 and 37, the light guide 4 is exposed from the bent portion of the light guide 4 on the side opposite to the holder 7 to the end surface 4a (light incident portion 4a) of the light guide 4, and the light guide 4 is bent on the holder 7 side. The case where the portion to the end face 4a (light incident portion 4a) of the light guide 4 is also covered with the light guide holder 5 and inserted into the first hollow portion will be described. FIGS. 36 (a), (b), and (c) correspond to FIGS. 23 (a), (b), and (c), respectively, and FIGS. 37 (a), (b), and (c) respectively correspond to FIGS. (B) Since it corresponds to (c), detailed description of the common part is omitted. 36 is a combination of the light source device shown in FIG. 32 and the light source device shown in FIG. 34. The light source device shown in FIG. 37 is the same as the light source device shown in FIG. This is a combination with the light source device shown in FIG.

よって、図36及び図37に記載の光源装置は、導光体4の膨脹が最大のときに、導光体4の側面がホルダー7と接近又は接触することになるので、導光体4のこの部分を、対向面部又は押し当て面部としてもよい。また、導光体4の屈曲部分のホルダー7側に沿って、図23及び図25に記載のものよりも薄い導光体ホルダー5が導光体4を覆っているので、ホルダー7に実施の形態1に係るものと同じ形状のものを使用することができる。   Therefore, in the light source device described in FIGS. 36 and 37, when the expansion of the light guide 4 is maximum, the side surface of the light guide 4 approaches or contacts the holder 7. This portion may be an opposing surface portion or a pressing surface portion. Further, since the light guide holder 5 thinner than the one shown in FIGS. 23 and 25 covers the light guide 4 along the holder 7 side of the bent portion of the light guide 4, The thing of the same shape as what concerns on the form 1 can be used.

図38,図39,図40を用いて、実施の形態2に係る光源装置の導光体4の形状のバリエーションを説明する。図38(a)(b),図39(a)(b),図40(a)(b)にいける導光体4の形状以外は、それぞれ図29(a)(b)に記載のものと共通の構造を用いて説明する。共通部分の詳細説明は省略する。   Variations of the shape of the light guide 4 of the light source device according to Embodiment 2 will be described with reference to FIGS. 38, 39, and 40. Other than the shape of the light guide 4 in FIGS. 38 (a) (b), 39 (a) (b), 40 (a) (b), those shown in FIGS. 29 (a) (b), respectively. And will be described using a common structure. Detailed description of common parts is omitted.

図38(a)(b)に記載の導光体4は、端面4a(光入射部4a)面が延在する位置が導光体4の長手方向に延びる部分の底面の位置とほぼ同じ高さに設定されたものである。このような導光体4を実施の形態2に係る光源装置に用いることで、厚み方向(高さ方向)において導光体4や導光体ホルダー5の低背化を図ることができる。また、導光体ホルダー5及びホルダー7の形状も簡略化することができる。   In the light guide 4 shown in FIGS. 38A and 38B, the position where the end face 4a (light incident portion 4a) extends is substantially the same as the position of the bottom of the portion extending in the longitudinal direction of the light guide 4. Is set. By using such a light guide 4 in the light source device according to Embodiment 2, the light guide 4 and the light guide holder 5 can be reduced in height in the thickness direction (height direction). Further, the shapes of the light guide holder 5 and the holder 7 can be simplified.

図39(a)(b)に記載の導光体4は、端面4a(光入射部4a)面が延在する位置が導光体4の長手方向に延びる部分の底面の位置よりも高い位置に設定されたものである。このような導光体4を実施の形態2に係る光源装置に用いることで、図38(a)(b)に記載の導光体4よりも、厚み方向(高さ方向)において、より導光体4や導光体ホルダー5の低背化を図ることができる。また、導光体ホルダー5及びホルダー7の形状も、さらに簡略化することができる。   In the light guide 4 shown in FIGS. 39A and 39B, the position where the end face 4 a (light incident portion 4 a) surface extends is higher than the position of the bottom surface of the portion extending in the longitudinal direction of the light guide 4. Is set. By using such a light guide 4 in the light source device according to Embodiment 2, the light guide 4 is more guided in the thickness direction (height direction) than the light guide 4 shown in FIGS. The height of the light body 4 and the light guide holder 5 can be reduced. Further, the shapes of the light guide holder 5 and the holder 7 can be further simplified.

図39(a)(b)に記載の導光体4は、端面4a(光入射部4a)面の一部が突起しており、その突起が導光体ホルダー5と接触している。よって、厚み方向(高さ方向)において導光体4や導光体ホルダー5の低背化を図りつつ、導光体4と導光体ホルダー5との嵌合がより強固なものにすることができる。   In the light guide 4 shown in FIGS. 39A and 39B, a part of the end face 4 a (light incident portion 4 a) surface protrudes, and the protrusion is in contact with the light guide holder 5. Therefore, the light guide 4 and the light guide holder 5 are reduced in height in the thickness direction (height direction), and the fitting between the light guide 4 and the light guide holder 5 is made stronger. Can do.

図22〜図40を用いて説明した実施の形態2に係る光源装置は、各構成を適宜入れ替えて実施することは可能である。この入れ替えは、後述の実施の形態3に係る光源装置(反射板支持構造)及び前述の実施の形態1に係る光源装置(反射板支持構造)との間でも成立する。   The light source device according to the second embodiment described with reference to FIGS. 22 to 40 can be implemented by appropriately replacing each configuration. This replacement is also established between the light source device (reflector support structure) according to Embodiment 3 described later and the light source apparatus (reflector support structure) according to Embodiment 1 described above.

実施の形態3.
この発明の実施の形態3について図41〜図47を用いて説明する。実施の形態3は、導光体4の端部が屈曲したものを説明する。特に、導光体4の端部が板状部材8(板状部材8a)側に屈曲し、発光部3が、板状部材8(板状部材8a)の長手方向に交差する方向に折れ曲がった部分(後述の締結部806s)に、直接又は伝熱体9を介して締結されるものと、発光部3が、板状部材8(板状部材8a)の長手方向に交差する方向に折れ曲がった部分に、形成された発光部用孔又は発光部用切り欠きを介して取り付けられたものとを説明する。実施の形態3では、実施の形態1及び2と異なる部分を中心に説明を行う。また、実施の形態3に係る光源装置の導光体4及び導光体ホルダー5の厚み方向の膨脹と収縮とを考慮して、導光体4,導光体ホルダー5,ホルダー7を配置していることはいうまでもない。例えば、膨脹が最大のときに、導光体ホルダー5(導光体4)がホルダー7を破損させないように、導光体ホルダー5(導光体4)及びホルダー7の寸法を設定するなどが想定される。しかし、導光体4及び導光体ホルダー5の長手方向の膨脹と収縮とに比べて影響が非常に少ないので、詳細説明は省略する。
Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIGS. Embodiment 3 explains what the edge part of the light guide 4 bent. In particular, the end portion of the light guide 4 is bent toward the plate-like member 8 (plate-like member 8a), and the light-emitting portion 3 is bent in a direction intersecting the longitudinal direction of the plate-like member 8 (plate-like member 8a). The light emitting part 3 is bent in a direction intersecting with the longitudinal direction of the plate-like member 8 (plate-like member 8a) and the part fastened to the portion (a fastening portion 806s described later) directly or via the heat transfer body 9. The part attached to the part through the formed light emitting part hole or light emitting part notch will be described. In the third embodiment, the description will focus on the parts different from the first and second embodiments. In consideration of expansion and contraction in the thickness direction of the light guide 4 and the light guide holder 5 of the light source device according to Embodiment 3, the light guide 4, the light guide holder 5, and the holder 7 are arranged. Needless to say. For example, the dimensions of the light guide holder 5 (light guide 4) and the holder 7 are set so that the light guide holder 5 (light guide 4) does not damage the holder 7 when the expansion is maximum. is assumed. However, since the influence is very small compared with the expansion and contraction of the light guide 4 and the light guide holder 5 in the longitudinal direction, the detailed description is omitted.

図41及び図47は、実施の形態3に係る光源装置の筐体となる板状部材8aを示している。図41及び図47には、板状部材8aの折り曲げ後の板状部材8に、仮想的に、導光体4,導光体ホルダー5,ホルダー7を載置した場合のイメージを示している。なお、図41及び図47では、ホルダー7内を透視した状態を図示しており、導光体4の一部,光学フィルタ6,発光素子1が点線で示している。図42(a)は図41に記載の板状部材8aが延在している面と平行な面で見た断面図、図42(b)は図42(a)から導光体4と導光体ホルダー5を排除した仮想断面図、図43は図41に記載の点線矢印Aから見た光源装置の側面図、図44(a)は図41に記載の板状部材8aが延在している面と垂直な面で見た断面図、図44(b)は図44(a)から導光体4と導光体ホルダー5を排除した仮想断面図である。図45(a)は図41に記載の板状部材8aが延在している面と平行な面で見た断面図、図45(b)は図45(a)から導光体4と導光体ホルダー5を排除した仮想断面図、図46は図41に記載の点線矢印Aから見た光源装置の側面図である。   41 and 47 show a plate-like member 8a serving as a housing of the light source device according to Embodiment 3. FIG. 41 and 47 show an image when the light guide 4, the light guide holder 5, and the holder 7 are virtually placed on the plate-like member 8 after the plate-like member 8 a is bent. . 41 and 47 show a state in which the inside of the holder 7 is seen through, and a part of the light guide 4, the optical filter 6, and the light emitting element 1 are indicated by dotted lines. 42 (a) is a cross-sectional view taken along a plane parallel to the surface on which the plate-like member 8a shown in FIG. 41 extends, and FIG. 42 (b) is a plan view of the light guide 4 and the guide from FIG. 42 (a). FIG. 43 is a side view of the light source device seen from the dotted arrow A shown in FIG. 41, and FIG. 44 (a) is an extension of the plate-like member 8a shown in FIG. 44B is a virtual sectional view in which the light guide 4 and the light guide holder 5 are excluded from FIG. 44A. 45 (a) is a cross-sectional view taken along a plane parallel to the surface on which the plate-like member 8a shown in FIG. 41 extends, and FIG. 45 (b) is a guide from the light guide 4 to FIG. 45 (a). FIG. 46 is a side view of the light source device viewed from the dotted arrow A shown in FIG.

図40〜図47において、806sは、板状端部804(導光体ホルダー5側)における領域で、ネジ10を通すネジ穴を有し、板状部材8に形成され、導光体ホルダー5,発光部3,伝熱体9がネジ10によって締結される締結部、809sは、板状端部804(板状部材8a)に形成された発光部用孔である。発光部3(基板2)は、発光部用孔809sを介して板状部材8(板状端部804)に取り付けられる。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   40 to 47, 806 s is a region at the plate-like end 804 (light guide holder 5 side), has a screw hole through which the screw 10 is passed, is formed in the plate-like member 8, and the light guide holder 5 , The light emitting part 3, the fastening part to which the heat transfer body 9 is fastened by the screw 10, and 809 s are light emitting part holes formed in the plate-like end part 804 (plate-like member 8 a). The light emitting unit 3 (substrate 2) is attached to the plate-like member 8 (plate-like end portion 804) through the light emitting unit hole 809s. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

なお、発光部用孔809sは、発光部用孔809sの周囲が板状端部804(板状部材8)に囲まれた完全な孔である必要なく、板状端部804(板状部材8)の外形から内側に切り欠かれた発光部用切り欠き809sでもよい。本願では、発光部用切り欠き809sは発光部用孔809sを含むものとして説明を行う。発光部用孔809sの図示は省略する。なお、発光部用切り欠き809s(発光部用孔809s)は、「板状部材8が主走査方向(長手方向)に沿った一端のうち、導光体ホルダー固定部802以外の部分が、それぞれ板状部材8と連続する複数の板状端部804」のうち、導光体ホルダー固定部802を挟み込む位置の二つの板状端部804にそれぞれ形成されている。図中、同一符号は、同一又は相当部分を示しそれらについての詳細な説明は省略する。   The light emitting portion hole 809s does not need to be a complete hole surrounded by the plate end portion 804 (plate member 8), and the light emitting portion hole 809s does not need to be a complete hole. ) Of the light emitting part cut out inward from the outer shape of). In the present application, description will be made assuming that the light-emitting portion notch 809s includes the light-emitting portion hole 809s. The illustration of the light emitting portion hole 809s is omitted. The light emitting part notch 809s (light emitting part hole 809s) indicates that “the plate-like member 8 has one end along the main scanning direction (longitudinal direction) other than the light guide holder fixing part 802. Of the plurality of plate-like end portions 804 continuous with the plate-like member 8, two plate-like end portions 804 at positions where the light guide holder fixing portion 802 is sandwiched are formed. In the drawings, the same reference numerals denote the same or corresponding parts, and detailed descriptions thereof are omitted.

図42及び図43と図45及び図46との違いは、特に、図42(b)と図45(b)とから明らかなとおり、図42及び図43に記載の光源装置は、導光体ホルダー5と板状部材8との間に、ホルダー7がなく、図45及び図46に記載の光源装置は、導光体ホルダー5と板状部材8との間に、ホルダー7が存在することである。詳しくは、図42及び図43に示すホルダー7は、第1中空部(光学フィルタ6が形成)上では、実施の形態3に係る光源装置の厚み方向にて、ホルダー7(第1中空部の縁から延びた壁面),導光体ホルダー5,板状部材8の順で配列されている。一方、図45及び図46に示すホルダー7は、第1中空部(光学フィルタ6が形成)上では、実施の形態3に係る光源装置の厚み方向にて、ホルダー7(第1中空部の縁から延びた壁面),導光体ホルダー5,ホルダー7(第1中空部の縁から延びた壁面),板状部材8の順で配列されている。つまり、図45及び図46に示すホルダー7は、実施の形態2における図30(b)に示すホルダー7にするものである。但し、ホルダー7の配置は、図30(b)の括弧内に示すものとなる。よって、図30及び図31に示すホルダー7においても、図42及び図43に示すホルダー7と同様の構成として、光源装置の厚み方向にて、ホルダー7(第1中空部の縁から延びた壁面),導光体ホルダー5,板状部材8の順で配列したものとしてもよい。図44(a)(b)は両者共通の構造を示す断面図である。   The difference between FIGS. 42 and 43 and FIGS. 45 and 46 is particularly clear from FIGS. 42 (b) and 45 (b). As shown in FIGS. 42 and 43, the light source device shown in FIGS. There is no holder 7 between the holder 5 and the plate-like member 8, and the light source device shown in FIGS. 45 and 46 has the holder 7 between the light guide holder 5 and the plate-like member 8. It is. Specifically, the holder 7 shown in FIGS. 42 and 43 has a holder 7 (of the first hollow portion) in the thickness direction of the light source device according to Embodiment 3 on the first hollow portion (formed by the optical filter 6). Wall surface extending from the edge), light guide holder 5 and plate member 8 are arranged in this order. On the other hand, the holder 7 shown in FIGS. 45 and 46 has the holder 7 (the edge of the first hollow portion) in the thickness direction of the light source device according to Embodiment 3 on the first hollow portion (formed by the optical filter 6). Wall surface extending from), light guide holder 5, holder 7 (wall surface extending from the edge of the first hollow portion), and plate-like member 8 are arranged in this order. That is, the holder 7 shown in FIGS. 45 and 46 is the holder 7 shown in FIG. 30B in the second embodiment. However, the arrangement of the holder 7 is as shown in parentheses in FIG. Therefore, the holder 7 shown in FIGS. 30 and 31 also has the same configuration as the holder 7 shown in FIGS. 42 and 43, and the holder 7 (wall surface extending from the edge of the first hollow portion) in the thickness direction of the light source device. ), The light guide holder 5 and the plate-like member 8 may be arranged in this order. 44 (a) and 44 (b) are cross-sectional views showing a structure common to both.

実施の形態3に係る光源装置は、図42(a)及び図43(図45(a)及び図46も同じ)に記載の光源装置の導光体ホルダー5は、ホルダー7の第1開口の縁に対向する押し当て面部を有している。具体的には、押し当て面部は、導光体4の屈曲部分の外周側を覆う導光体ホルダー5の部分に相当する。この押し当て面部は、導光体ホルダー5の摺動範囲(移動範囲)を制限するようにしてもよい。なお、導光体4の膨脹が最大となったときに押し当て面部が第1開口の縁に接触直前となるようにしてもよい。この場合、押し当て面部は押し当て面部ではなく対向面部となる。   In the light source device according to Embodiment 3, the light guide holder 5 of the light source device described in FIGS. 42A and 43 (the same applies to FIGS. 45A and 46) is the first opening of the holder 7. A pressing surface portion facing the edge is provided. Specifically, the pressing surface portion corresponds to a portion of the light guide holder 5 that covers the outer peripheral side of the bent portion of the light guide 4. The pressing surface portion may limit the sliding range (movement range) of the light guide holder 5. In addition, when the expansion of the light guide 4 becomes maximum, the pressing surface portion may be immediately before contacting the edge of the first opening. In this case, the pressing surface portion is not the pressing surface portion but the facing surface portion.

図42及び図43に記載の導光体ホルダー5の端部は、ホルダー7が(導光体ホルダー5の端部を)摺動可能に保持する、又は、導光体ホルダーの端部5は、第1中空部上で長手方向に伸縮するものである。同じく、図45及び図46に記載の導光体ホルダー5の端部は、ホルダー7が(導光体ホルダー5の端部を)摺動可能に保持する、又は、導光体ホルダーの端部5は、第1中空部上で長手方向に伸縮するものである。但し、図42及び図43に記載の導光体ホルダー5と図45及び図46に記載の導光体ホルダー5とでは、ホルダー7と接触する可能性ある部位が異なる。詳しくは、図42及び図43に記載の導光体ホルダー5の端部の一部は、板状部材8と接触して摺動、又は、板状部材8上で長手方向に伸縮することになる。   42 and 43, the end of the light guide holder 5 is slidably held by the holder 7 (the end of the light guide holder 5), or the end 5 of the light guide holder is The first hollow portion expands and contracts in the longitudinal direction. Similarly, the end of the light guide holder 5 shown in FIGS. 45 and 46 is slidably held by the holder 7 (the end of the light guide holder 5) or the end of the light guide holder. 5 expands and contracts in the longitudinal direction on the first hollow portion. However, the light guide holder 5 shown in FIGS. 42 and 43 and the light guide holder 5 shown in FIGS. Specifically, a part of the end of the light guide holder 5 described in FIGS. 42 and 43 slides in contact with the plate member 8 or expands or contracts in the longitudinal direction on the plate member 8. Become.

実施の形態3に係る光源装置は、導光体4の端部が板状端部804(締結部809s)側に屈曲しており、締結部809sに締結された発光部3(発光素子1)から出た光が、板状端部804(締結部809s)側に端部が屈曲した導光体4の端面4a(光入射部4a)から入射される。この後の基本動作は、実施の形態1及び2に係る光源装置と同様である。導光体4の屈曲の主要部分は、実施の形態2ではXZ平面上に存在したが、実施の形態3ではXY平面上に存在している。実施の形態3に係る光源装置の導光体4においても、光散乱パターン4cは少なくとも画像読取装置の主走査方向の有効読取領域に対応する部分に少なくとも形成されておればよい。また、導光体4の屈曲部分から、他の部分よりも多め又は少なめに光を出射させるようにすることで、有効読取領域の端部(ホルダー7の近傍)における輝度などの調整を行ってもよい。   In the light source device according to Embodiment 3, the end of the light guide 4 is bent toward the plate-like end 804 (fastening portion 809s), and the light emitting portion 3 (light emitting element 1) fastened to the fastening portion 809s. The light emitted from the light enters from the end face 4a (light incident portion 4a) of the light guide 4 whose end is bent toward the plate-like end 804 (fastening portion 809s). Subsequent basic operations are the same as those of the light source device according to the first and second embodiments. The main part of the bending of the light guide 4 exists on the XZ plane in the second embodiment, but exists on the XY plane in the third embodiment. Also in the light guide 4 of the light source device according to Embodiment 3, the light scattering pattern 4c only needs to be formed at least in a portion corresponding to the effective reading region in the main scanning direction of the image reading device. Further, by adjusting the light intensity at the end of the effective reading area (in the vicinity of the holder 7) by emitting more or less light from the bent portion of the light guide 4 than other portions. Also good.

図47に記載の光源装置は、図41〜図46に記載の光源装置では発光部3(基板2)が締結部806sにネジ10(図示省略)で締結していたことに対して、発光部3(基板2)が発光部用切り欠き809sを介して板状部材8に取り付けられるものである。前述のとおり、発光部用切り欠き809sは、板状端部804に周囲を完全に囲まれた発光部用孔809sでもよい。   The light source device shown in FIG. 47 is different from the light source device shown in FIGS. 41 to 46 in that the light emitting unit 3 (substrate 2) is fastened to the fastening portion 806s with a screw 10 (not shown). 3 (substrate 2) is attached to the plate-like member 8 through the light emitting portion notch 809s. As described above, the light emitting portion notch 809s may be the light emitting portion hole 809s completely surrounded by the plate-like end portion 804.

図47に加え、図41における実施の形態3に係る光源装置の板状部材8a(板状部材8)は、発光部3が接触する板状端部804を長手方向(導光体4に対してネジ穴805の外側の空間側)に延長して、折り曲げて、短手方向、又は、長手方向及び短手方向に延在するL字状又はコ字状の放熱板を形成してもよい(図示は省略する)。長手方向及び短手方向に折り曲げる場合は、板状端部804と平行となるようにする場合と、板状端部803と平行となるようにする場合とがある。板状端部803と平行となるようにする場合は、斜面部801(反射板支持部801)に対し長辺側壁部と反対の側で対向して長手方向に延在する放熱板を形成することになる(図示は省略するが、反射板11の反射面の反対の面側に放熱板を形成することになる)。もちろん、放熱板を板状部材8の底面側に延在させて形成してよい。同じく、図41及び図47における実施の形態3に係る光源装置の板状部材8a(板状部材8)は、図14及び図15に示す延長導光体ホルダー固定部802eや延長板状端部804eを放熱板として形成してもよい。放熱板に関しては、実施の形態2に係る光源装置における板状部材8でも同様である。   In addition to FIG. 47, the plate-like member 8a (plate-like member 8) of the light source device according to Embodiment 3 in FIG. To the outside of the screw hole 805) and bent to form an L-shaped or U-shaped heat radiating plate extending in the short direction or in the long and short directions. (The illustration is omitted). In the case of bending in the longitudinal direction and the short direction, there are a case where it is made parallel to the plate-like end portion 804 and a case where it is made parallel to the plate-like end portion 803. In the case of being parallel to the plate-like end portion 803, a heat radiating plate extending in the longitudinal direction is formed facing the slope portion 801 (reflecting plate support portion 801) on the side opposite to the long side wall portion. (Although not shown, a heat radiating plate is formed on the surface opposite to the reflecting surface of the reflecting plate 11). Of course, the heat radiating plate may be formed to extend to the bottom surface side of the plate-like member 8. Similarly, the plate-like member 8a (plate-like member 8) of the light source device according to Embodiment 3 in FIGS. 41 and 47 is the extended light guide holder fixing portion 802e and the extended plate-like end portion shown in FIGS. You may form 804e as a heat sink. The same applies to the plate-like member 8 in the light source device according to Embodiment 2 with respect to the heat sink.

実施の形態3に係る光源装置は、ホルダー7の第1開口及び第2開口の間に光学フィルタ6を発光部3と所定の間隔を維持して支持するものである。さらに、導光体4の端面4a(光入射部4a)と発光部3(光学フィルタ6)とが接触しないものである。なお、図41と図47との対比を容易にするために、図47では伝熱体9が筐体である板状端部804(発光部用切り欠き809s)と側面の一部だけ接触しているように図示しているが、実際は、伝熱体9の側面以外の部分と板状端部804とを直接又は間接的に接触させて熱を伝導させてもよいし、伝熱体9を設けなくてもよい。   The light source device according to Embodiment 3 supports the optical filter 6 between the first opening and the second opening of the holder 7 while maintaining a predetermined distance from the light emitting unit 3. Furthermore, the end surface 4a (light incident part 4a) of the light guide 4 and the light emitting part 3 (optical filter 6) do not come into contact with each other. In order to facilitate the comparison between FIG. 41 and FIG. 47, in FIG. 47, the heat transfer body 9 is in contact with the plate-shaped end portion 804 (notch 809s for the light emitting portion) that is the casing and only a part of the side surface. However, in actuality, the heat transfer body 9 may be made to conduct heat by directly or indirectly contacting a portion other than the side surface of the heat transfer body 9 and the plate-like end portion 804, or the heat transfer body 9. May not be provided.

実施の形態3に係る光源装置における締結部806s及び発光部用切り欠き809s(発光部用孔809s)は板状端部804(導光体ホルダー5側)以外にも、板状端部803(反射板11側)に形成してもよい。この場合は、導光体4の屈曲方向が反対となる(図41及び図47上では屈曲方向の上下が反対となる)。また、板状端部803,板状端部804以外に、締結部806s及び発光部用切り欠き809s(発光部用孔809s)を形成してもよい。例えば、板状部材8(板状部材8a)の長手方向に折れ曲がった部分に形成された締結部806と同じように、板状部材8(板状部材8a)の短手方向に折れ曲がった部分に、締結部806s及び発光部用切り欠き809s(発光部用孔809s)を形成してもよい。   The fastening portion 806s and the light emitting portion notch 809s (light emitting portion hole 809s) in the light source device according to Embodiment 3 are not limited to the plate-shaped end portion 804 (light guide holder 5 side), but the plate-shaped end portion 803 ( You may form in the reflecting plate 11 side. In this case, the bending direction of the light guide 4 is opposite (in FIG. 41 and FIG. 47, the upper and lower sides in the bending direction are opposite). In addition to the plate-like end portion 803 and the plate-like end portion 804, a fastening portion 806s and a light-emitting portion notch 809s (light-emitting portion hole 809s) may be formed. For example, in the same manner as the fastening portion 806 formed in the portion bent in the longitudinal direction of the plate member 8 (plate member 8a), the portion bent in the short direction of the plate member 8 (plate member 8a). The fastening portion 806s and the light emitting portion notch 809s (light emitting portion hole 809s) may be formed.

1・・発光素子、2・・基板(LED基板)、3・・発光部、4・・導光体、4a・・光入射部(導光体4の端面)、4b・・光出射部(導光体4の側面)、4c・・光散乱パターン、4d・・突起部、5・・導光体ホルダー、5a・・導光体係止部、5b・・第1突起部、5c・・第2突起部、5d・・嵌合孔(導光体4用)、6・・光学フィルタ、7・・ホルダー7・・板状部材、8a・・板状部材(折り曲げ前)、8b・・長孔(導光体ホルダー5用)、8c・・嵌合孔(導光体ホルダー5用)、8s・・板状部材(折り曲げ前)、801・・反射板支持部(二箇所折り曲げ,斜面部)、801e・・延長反射板支持部、801b・・反射板支持部(一箇所折り曲げ,斜面部)、802・・導光体ホルダー固定部、802e・・延長導光体ホルダー固定部、803・・板状端部(反射板11側)、803e・・延長板状端部(反射板11側)、804・・板状端部(導光体ホルダー5側)、804e・・延長板状端部(導光体ホルダー5側)、805・・ネジ穴、806・・締結部、806g・・締結部、806s・・締結部、807・・反射光通過孔(ロッドレンズ保持部)、808・・一体端部、809・・発光部用孔(発光部用切り欠き)、809s・・発光部用切り欠き(発光部用孔)、9・・伝熱体、10・・ネジ、11・・反射板(ミラー)。 1 .... light emitting element 2 .... substrate (LED substrate) 3 .... light emitting part 4 .... light guide 4a ... light incident part (end face of light guide 4) 4b ... light emitting part ( Side surface of the light guide 4), 4c... Light scattering pattern, 4d .. Projection part 5,. Light guide holder, 5a ... Light guide locking part, 5b ... First projection part, 5c ... 2nd projection, 5d .. fitting hole (for light guide 4), 6 ... optical filter, 7 holder 7 ... plate member, 8a ... plate member (before bending), 8b ... Long hole (for light guide holder 5), 8c ·· Fitting hole (for light guide holder 5), 8s · · Plate-like member (before bending), 801 · · Reflector support (folded in two places, slope Part), 801e..extended reflector support part, 801b..reflector support part (one-folded, inclined part), 802..light guide holder fixing part, 802e..extension guide Body holder fixing portion, 803... Plate-like end (reflecting plate 11 side), 803e .. extension plate-like end (reflecting plate 11 side), 804... Plate-like end (light guide holder 5 side), 804e ... Extension plate-like end (light guide holder 5 side), 805 ... Screw hole, 806 ... Fastening part, 806g ... Fastening part, 806s ... Fastening part, 807 ... Reflected light passage hole (rod) Lens holding part), 808 ..Integral end part, 809 ..Light emitting part hole (light emitting part notch), 809 s ..Light emitting part notch (light emitting part hole), 9.・ ・ Screw, 11 ・ ・ Reflector (mirror).

Claims (20)

画像読取装置に使用する光源装置であって、主走査方向に延在する棒状光源又はアレイ光源と、この棒状光源又はアレイ光源と対向して配置され、前記主走査方向に延在し、前記棒状光源又はアレイ光源の側面から出射した光を反射する反射板と、前記主走査方向に沿って間欠的に配列され、前記反射板を支持する複数の反射板支持部とを備えた光源装置。   A light source device for use in an image reading device, which is arranged in a main scanning direction, a rod-shaped light source or an array light source, and is disposed to face the rod-shaped light source or the array light source, extends in the main scanning direction, and is in the rod shape A light source device comprising: a reflection plate that reflects light emitted from a side surface of a light source or an array light source; and a plurality of reflection plate support portions that are intermittently arranged along the main scanning direction and support the reflection plate. 画像読取装置に使用する光源装置であって、主走査方向に延在する棒状光源又はアレイ光源と、この棒状光源又はアレイ光源と対向して配置され、前記主走査方向に延在し、前記棒状光源又はアレイ光源の側面から出射した光を反射する反射板と、前記主走査方向に沿って、互いに所定の間隔を空けて配列され、前記反射板を支持する複数の反射板支持部とを備えた光源装置。   A light source device for use in an image reading device, which is arranged in a main scanning direction, a rod-shaped light source or an array light source, and is disposed to face the rod-shaped light source or the array light source, extends in the main scanning direction, and is in the rod shape A reflection plate that reflects light emitted from the side surface of the light source or the array light source, and a plurality of reflection plate support portions that are arranged at predetermined intervals along the main scanning direction and support the reflection plate. Light source device. 前記複数の反射板支持部は、前記反射板における前記棒状光源又はアレイ光源の側面から出射した光を反射する面と反対の面側に配置されたものである請求項1又は2に記載の光源装置。   3. The light source according to claim 1, wherein the plurality of reflection plate support portions are arranged on a surface side opposite to a surface that reflects light emitted from a side surface of the rod-shaped light source or the array light source in the reflection plate. apparatus. 前記複数の反射鏡支持部は、前記複数の反射鏡支持部を支持する板状部材に対して、前記主走査方向を対する副走査方向に対して角度を有して起立しているものである請求項1〜3のいずれかに記載の光源装置。   The plurality of reflecting mirror support portions are erected with an angle with respect to the sub-scanning direction with respect to the main scanning direction with respect to the plate-like member that supports the plurality of reflecting mirror support portions. The light source device according to claim 1. 前記複数の反射鏡支持部は、前記板状部材と一体である請求項4に記載の光源装置。   The light source device according to claim 4, wherein the plurality of reflecting mirror support portions are integrated with the plate-like member. 前記複数の反射鏡支持部は、それぞれ前記板状部材の前記主走査方向に沿った一端を折り曲げて形成されたものである請求項5に記載の光源装置。   6. The light source device according to claim 5, wherein each of the plurality of reflecting mirror support portions is formed by bending one end of the plate-shaped member along the main scanning direction. 前記板状部材は、前記主走査方向に沿った一端のうち、前記複数の反射鏡支持部以外の部分が、それぞれ前記板状部材と連続する複数の板状端部を有する請求項6に記載の光源装置。   The plate-like member has a plurality of plate-like end portions, each of which is continuous with the plate-like member, except for the plurality of reflecting mirror support portions, at one end along the main scanning direction. Light source device. 前記板状端部は、前記主走査方向の長さが、前記反射鏡支持部の前記主走査方向の長さよりも長いものである請求項7に記載の光源装置。   The light source device according to claim 7, wherein the plate-like end portion has a length in the main scanning direction that is longer than a length of the reflecting mirror support portion in the main scanning direction. 前記複数の板状端部は、前記画像読取装置のキャリッジとの接続インターフェース手段を有する請求項7又8に記載の光源装置。   9. The light source device according to claim 7, wherein the plurality of plate-like end portions have connection interface means with a carriage of the image reading device. 前記複数の板状端部は、前記複数の反射鏡支持部と連続する基端側から前記副走査方向に沿った先端側が、それぞれ接続されて一体となっているものである請求項7、8、9のいずれかに記載の光源装置。   9. The plurality of plate-like end portions are integrally formed by connecting the base end side continuous with the plurality of reflecting mirror support portions from the distal end side along the sub-scanning direction, respectively. , 9. The light source device according to claim 9. 前記板状部材は、前記板状部材の他端で前記棒状光源又はアレイ光源を保持するものである請求項6〜10のいずれかに記載の光源装置。   The light source device according to claim 6, wherein the plate-like member holds the rod-like light source or the array light source at the other end of the plate-like member. 前記複数の反射板支持部は、前記板状部材に対して角度を有している基端部分以外に、前記副走査方向に対して屈曲した部分を有するものである請求項4〜11のいずれかに記載の光源装置。   The plurality of reflecting plate support portions have a portion bent with respect to the sub-scanning direction in addition to a base end portion having an angle with respect to the plate-like member. A light source device according to claim 1. 前記複数の反射板支持部は、前記主走査方向を対する副走査方向に対して屈曲した部分を有するものである請求項1又は2に記載の光源装置。   3. The light source device according to claim 1, wherein the plurality of reflecting plate support portions have a portion bent with respect to the sub-scanning direction with respect to the main scanning direction. 画像読取装置に使用する反射板支持構造であって、主走査方向に延在する反射板と、前記主走査方向に沿って間欠的に配列され、前記反射板を支持する複数の反射板支持部とを備えた反射板支持構造。   A reflector support structure used in an image reading apparatus, the reflector extending in the main scanning direction, and a plurality of reflector support parts that are intermittently arranged along the main scanning direction and support the reflector And a reflector support structure. 画像読取装置に使用する反射板支持構造であって、主走査方向に延在する反射板と、前記主走査方向に沿って、互いに所定の間隔を空けて配列され、前記反射板を支持する複数の反射板支持部とを備えた反射板支持構造。   A reflecting plate support structure used in an image reading apparatus, and a plurality of reflecting plates that extend in the main scanning direction and are arranged at predetermined intervals along the main scanning direction and support the reflecting plate The reflector support structure provided with the reflector support part. 前記複数の反射板支持部は、前記反射板の反射面と反対の面側に配置され、
前記複数の反射鏡支持部を支持する板状部材と一体であり、
前記板状部材に対して、前記主走査方向を対する副走査方向に対して角度を有して起立し、
それぞれ前記板状部材の前記主走査方向に沿った一端を折り曲げて形成されたものである請求項14又は15に記載の反射板支持構造。
The plurality of reflection plate support portions are disposed on a surface side opposite to the reflection surface of the reflection plate,
It is integral with the plate-like member that supports the plurality of reflector support parts,
With respect to the plate-like member, it stands up with an angle with respect to the sub-scanning direction with respect to the main scanning direction,
The reflector support structure according to claim 14 or 15, wherein each of the plate-like members is formed by bending one end along the main scanning direction.
前記複数の反射板支持部は、前記板状部材に対して角度を有している基端部分以外に、前記副走査方向に対して屈曲した部分を有するものである請求項16に記載の反射板支持構造。   17. The reflection according to claim 16, wherein the plurality of reflecting plate support portions have a portion bent with respect to the sub-scanning direction in addition to a base end portion having an angle with respect to the plate-like member. Board support structure. 前記複数の反射板支持部は、前記主走査方向を対する副走査方向に対して屈曲した部分を有するものである請求項14又は15に記載の反射板支持構造。   The reflecting plate support structure according to claim 14 or 15, wherein the plurality of reflecting plate support portions have a portion bent with respect to the sub-scanning direction with respect to the main scanning direction. 前記棒状光源は、放電灯であり、
前記アレイ光源は、発光部が前記主走査方向に複数配列され、前記副走査方向に光を放射するものである請求項1〜13のいずれかに記載の光源装置。
The rod-shaped light source is a discharge lamp,
The light source device according to claim 1, wherein the array light source has a plurality of light emitting units arranged in the main scanning direction and emits light in the sub scanning direction.
前記棒状光源は、発光部と、端面から入射された前記発光部からの光を長手方向に導光して、側面から出射する柱状の導光体とからなるものであり、
前記アレイ光源は、前記発光部が前記主走査方向に複数配列され、導光部材又は反射部材によって、前記副走査方向に光を放射するものである請求項1〜13のいずれかに記載の光源装置。
The rod-shaped light source is composed of a light emitting portion and a columnar light guide that guides light from the light emitting portion incident from the end face in the longitudinal direction and emits the light from the side surface.
The light source according to any one of claims 1 to 13, wherein the array light source has a plurality of light emitting units arranged in the main scanning direction, and emits light in the sub scanning direction by a light guide member or a reflecting member. apparatus.
JP2012140062A 2012-02-07 2012-06-21 Light source device and reflector support structure Active JP5853879B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP2012140062A JP5853879B2 (en) 2012-06-21 2012-06-21 Light source device and reflector support structure
US14/367,044 US9151465B2 (en) 2012-02-07 2012-12-25 Light-source device and reflector-support structure
PCT/JP2012/083524 WO2013118414A1 (en) 2012-02-07 2012-12-25 Light-source device and reflector-support structure
EP12867829.9A EP2813748B1 (en) 2012-02-07 2012-12-25 Light-source device and reflector-support structure
CN201280069159.8A CN104094045B (en) 2012-02-07 2012-12-25 Light supply apparatus and reflecting plate supporting structure
EP15162476.4A EP2916064B1 (en) 2012-02-07 2012-12-25 Light source device and reflector support structure
KR20147020800A KR20140113991A (en) 2012-02-07 2012-12-25 Light-source device and reflector-support structure
TW102104328A TW201351955A (en) 2012-02-07 2013-02-05 Light-source device and reflector-support structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012140062A JP5853879B2 (en) 2012-06-21 2012-06-21 Light source device and reflector support structure

Publications (2)

Publication Number Publication Date
JP2014007464A true JP2014007464A (en) 2014-01-16
JP5853879B2 JP5853879B2 (en) 2016-02-09

Family

ID=50104864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012140062A Active JP5853879B2 (en) 2012-02-07 2012-06-21 Light source device and reflector support structure

Country Status (1)

Country Link
JP (1) JP5853879B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016075835A (en) * 2014-10-08 2016-05-12 ウシオ電機株式会社 Linear light source device for reading
JP2018037760A (en) * 2016-08-30 2018-03-08 セイコーエプソン株式会社 Luminaire and image reading device
JP2019117973A (en) * 2017-12-26 2019-07-18 富士ゼロックス株式会社 Light-emitting device, image reading device, and image forming apparatus
JP2020182165A (en) * 2019-04-26 2020-11-05 三菱電機株式会社 Image reading device
CN114143409A (en) * 2017-02-22 2022-03-04 三菱电机株式会社 Illumination device and image reading device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03274855A (en) * 1990-03-23 1991-12-05 Matsushita Graphic Commun Syst Inc Original illuminator
JP2008205843A (en) * 2007-02-20 2008-09-04 Kyocera Mita Corp Image reader and image forming apparatus
JP2010147592A (en) * 2008-12-16 2010-07-01 Sharp Corp Original reader and image forming apparatus equipped with the same
JP2011014976A (en) * 2009-06-30 2011-01-20 Kyocera Mita Corp Photoirradiation apparatus
JP2011024043A (en) * 2009-07-16 2011-02-03 Fuji Xerox Co Ltd Image reading device, and image forming apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03274855A (en) * 1990-03-23 1991-12-05 Matsushita Graphic Commun Syst Inc Original illuminator
JP2008205843A (en) * 2007-02-20 2008-09-04 Kyocera Mita Corp Image reader and image forming apparatus
JP2010147592A (en) * 2008-12-16 2010-07-01 Sharp Corp Original reader and image forming apparatus equipped with the same
JP2011014976A (en) * 2009-06-30 2011-01-20 Kyocera Mita Corp Photoirradiation apparatus
JP2011024043A (en) * 2009-07-16 2011-02-03 Fuji Xerox Co Ltd Image reading device, and image forming apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016075835A (en) * 2014-10-08 2016-05-12 ウシオ電機株式会社 Linear light source device for reading
JP2018037760A (en) * 2016-08-30 2018-03-08 セイコーエプソン株式会社 Luminaire and image reading device
CN114143409A (en) * 2017-02-22 2022-03-04 三菱电机株式会社 Illumination device and image reading device
CN114143409B (en) * 2017-02-22 2024-01-30 三菱电机株式会社 Lighting device and image reading device
JP2019117973A (en) * 2017-12-26 2019-07-18 富士ゼロックス株式会社 Light-emitting device, image reading device, and image forming apparatus
JP7003646B2 (en) 2017-12-26 2022-01-20 富士フイルムビジネスイノベーション株式会社 Light emitting device, image reading device, image forming device
JP2020182165A (en) * 2019-04-26 2020-11-05 三菱電機株式会社 Image reading device
JP7283210B2 (en) 2019-04-26 2023-05-30 三菱電機株式会社 Image reader

Also Published As

Publication number Publication date
JP5853879B2 (en) 2016-02-09

Similar Documents

Publication Publication Date Title
WO2013118388A1 (en) Light-source device
WO2013118414A1 (en) Light-source device and reflector-support structure
TWI518372B (en) A light guide, a light source device and an image reading device
TWI523483B (en) A lighting device, an image sensor, and a method of manufacturing the same
JP5853879B2 (en) Light source device and reflector support structure
TWI461636B (en) Light source device
JP5835122B2 (en) Light source device
JP5903950B2 (en) Line light source for image reading
US10911632B2 (en) Image scanning device
US10536603B2 (en) Light guide and image reading apparatus
US7973983B2 (en) Light guide device and illumination module using the same
JP6035761B2 (en) Light source device
JP6479286B2 (en) Illumination device and image reading device
JP6395988B1 (en) Light guide and image reading apparatus
JP5821351B2 (en) LIGHTING DEVICE, IMAGE SENSOR USING THE SAME, AND IMAGE SENSOR MANUFACTURING METHOD
JP5835121B2 (en) Light source device
JP4830804B2 (en) Planar light source device and display device
JP2015159446A (en) Image reading apparatus
JP2015159444A (en) image reader
JP2007150748A (en) Line light source unit
JP2014017662A (en) Luminaire for image reading and image reader

Legal Events

Date Code Title Description
RD01 Notification of change of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7421

Effective date: 20140326

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20150113

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150825

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20151020

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20151110

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20151123

R151 Written notification of patent or utility model registration

Ref document number: 5853879

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250