JPH05122453A - Image reader - Google Patents
Image readerInfo
- Publication number
- JPH05122453A JPH05122453A JP3281190A JP28119091A JPH05122453A JP H05122453 A JPH05122453 A JP H05122453A JP 3281190 A JP3281190 A JP 3281190A JP 28119091 A JP28119091 A JP 28119091A JP H05122453 A JPH05122453 A JP H05122453A
- Authority
- JP
- Japan
- Prior art keywords
- document
- original
- transmission document
- transparent
- protective sheet
- 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.)
- Pending
Links
Landscapes
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は画像入力に用いる画像読
み取り装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading device used for image input.
【０００２】[0002]
【従来の技術】従来から画像読み取り装置として、図６
（ａ）に示すように反射原稿読み取りを行う場合には、
反射原稿１３を読み取り装置本体１上部に配置し、読み
取り装置本体１内の反射原稿用ランプ１１、ミラー１
２、レンズ１４、イメージセンサ１５から構成される反
射原稿読み取り光学系を使用して画像読み取りを行うも
のが知られていた。また、透過原稿読み取りを行う場合
には、図６（ｂ）に示す通り、前記読み取り装置本体１
上部に透過原稿７を配置し、さらに透過原稿７上部に透
過原稿証明ユニット１６を配置し、透過原稿照明ユニッ
ト内の透過原稿用ランプ４、読み取り装置本体１内のミ
ラー１２、レンズ１４、イメージセンサ１５を使用して
いた。2. Description of the Related Art A conventional image reading apparatus is shown in FIG.
When reading a reflective original as shown in (a),
The reflection original 13 is arranged on the upper portion of the reading apparatus main body 1, and the reflection original lamp 11 and the mirror 1 in the reading apparatus main body 1 are arranged.
It has been known that an image is read using a reflection original reading optical system including a lens 14, an image sensor 15, and a lens 14. Further, when the transparent original is read, as shown in FIG.
A transparent original 7 is arranged on the upper part, and a transparent original certifying unit 16 is arranged on the upper part of the transparent original 7, a transparent original lamp 4 in the transparent original illumination unit, a mirror 12, a lens 14 and an image sensor in the reading apparatus main body 1. I was using 15.
【０００３】また、前記の例では透過原稿照明ユニット
１６内の透過原稿用ランプ４は線状光源を使用し、読み
取り装置本体１内部のミラー１２の移動に同期させて透
過原稿の読み取りを行っていたが、透過原稿全体に照射
する面状光源を使用するものも知られていた。Further, in the above example, the transparent original lamp 4 in the transparent original illuminating unit 16 uses a linear light source, and the transparent original is read in synchronization with the movement of the mirror 12 inside the reading apparatus main body 1. However, it is also known to use a planar light source that illuminates the entire transparent original.
【０００４】[0004]
【発明が解決しようとする課題】前述したような画像読
み取り装置で透過原稿の読み取りを行う場合、原稿上部
に面状光源、あるいは線状の光源を移動させる装置を配
置しなければならない。しかし、一般的に前記の装置は
大型で、重量があり、反射原稿を所定の場所に配置する
ために開閉、あるいは着脱するのは非常な困難を伴っ
た。When a transparent original is read by the image reading apparatus as described above, a device for moving a surface light source or a linear light source must be arranged above the original. However, in general, the above-mentioned device is large and heavy, and it is very difficult to open / close or attach / detach the reflection original in order to arrange it at a predetermined place.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するた
め、本発明の画像読み取り装置は、（１）反射原稿用の
光学系一式を持つ読み取り装置本体と、透過原稿用照明
と、白色拡散板と、透過原稿用原稿搬送手段と、透過原
稿に密着し透過原稿と同速度で搬送される薄肉軟質透明
樹脂部材から構成し、（２）前記透過原稿用照明、白色
拡散板、透過原稿用原稿搬送部材、薄肉軟質透明部材か
らなる透過原稿読み取り手段を、前記読み取り装置本体
外に位置する１つのフレーム上に設けたユニットとして
構成し、当該ユニットを前記読み取り装置本体に着脱自
在に取り付けるように構成することを特徴とする。In order to solve the above-mentioned problems, an image reading apparatus according to the present invention comprises: (1) a reading apparatus main body having a set of optical systems for reflective originals, a transparent original illumination, and a white diffuser plate. And a transparent original transporting means, and a thin soft transparent resin member that is in close contact with the transparent original and is transported at the same speed as the transparent original. (2) The transparent original illumination, white diffuser plate, transparent original A transparent original reading means composed of a conveying member and a thin soft transparent member is configured as a unit provided on one frame located outside the reading device body, and the unit is detachably attached to the reading device body. It is characterized by doing.
【０００６】[0006]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。図１は本発明の画像読み取り装置の外観図であ
る。図１（ａ）において、読み取り装置本体１の原稿ガ
ラス９上部に透過原稿ユニット２を配置する。透過原稿
ユニット２は読み取り装置本体１に対して、ヒンジ、あ
るいは位置決めピン等により、所定の場所に設置が可能
であり、また、読み取り装置本体１より容易に着脱可能
な構成になっている。図１（ｂ）は透過原稿ユニット２
を読み取り装置本体１に完全にセットした状態であり、
透過原稿挿入部２ａより透過原稿７を挿入し、読み取り
を行う。読み取り装置本体１の内部は従来の原稿読み取
り装置と変わらず、図６（ａ）に示す通りである。ま
た、図２は透過原稿ユニット２と一部読み取り装置本体
１の断面図を表している。透過原稿用ランプ４から照射
された光は白色拡散板５により均一拡散され、ミラー１
２を通って読み取り装置本体１内の図示はしないイメー
ジセンサ１５に結像する。今、透過原稿７を白色拡散板
５と原稿ガラス９の間隙を通過させることで透過原稿７
の読み取りを行う。透過原稿７は原稿送りローラー３、
６により搬送され、イメージセンサの主走査と同期させ
ることで面状の読み取りが可能になるのである。また、
反射原稿読み取りの場合は反射原稿用ランプ１１を使用
するが、この場合の焦点位置は原稿ガラス９上面であ
る。従って、透過原稿読み取りの場合においても原稿ガ
ラス９と透過原稿７は密着していなければならない。し
かし、一般的に透過原稿は表面が傷付きやすく、原稿送
り時に原稿ガラス９と透過原稿７を摺動させることは原
稿破損につながる。そこで図２に表したように、透過原
稿下面に薄肉軟質透明樹脂製フィルムである原稿保護シ
ート８を重ね、透過原稿挿入部２ａから挿入し読み取り
を行う。透過原稿７と保護シート８は同速度で搬送され
るため、原稿ガラス９と保護シート８は摺動するが、透
過原稿７は直接原稿ガラス９と接触しない。従って、透
過原稿７は摺動による破損を回避することが可能であ
る。また、透過原稿ユニット２は透過原稿７を搬送させ
て読み取りを行うので、大型の面光源や、線光源を移動
させる必要がなく、装置の小型化が可能であり、かつ、
原稿の設置が容易である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of the image reading apparatus of the present invention. In FIG. 1A, the transparent original unit 2 is arranged above the original glass 9 of the reading apparatus main body 1. The transparent original unit 2 can be installed in a predetermined place with respect to the reading apparatus main body 1 by a hinge, a positioning pin, or the like, and can be easily attached to and detached from the reading apparatus main body 1. FIG. 1B shows a transparent original unit 2
Is completely set in the reading device body 1,
The transparent original 7 is inserted through the transparent original inserting section 2a and read. The inside of the reading device body 1 is the same as that of the conventional document reading device, as shown in FIG. Further, FIG. 2 shows a cross-sectional view of the transparent original unit 2 and the partial reading apparatus main body 1. The light emitted from the transparent original lamp 4 is uniformly diffused by the white diffuser plate 5, and the mirror 1
An image is formed on an image sensor 15 (not shown) in the reading device main body 1 through the image pickup device 2. The transparent original 7 is now passed through the gap between the white diffuser plate 5 and the original glass 9
Read. The transparent original 7 is the original feed roller 3,
The sheet is conveyed by 6 and can be read in a plane by synchronizing with the main scanning of the image sensor. Also,
When reading a reflective original, the reflective original lamp 11 is used, and the focus position in this case is the upper surface of the original glass 9. Therefore, even when reading a transparent original, the original glass 9 and the transparent original 7 must be in close contact with each other. However, in general, the surface of a transparent original is easily scratched, and sliding the original glass 9 and the transparent original 7 at the time of feeding the original leads to damage of the original. Therefore, as shown in FIG. 2, the original protective sheet 8 which is a thin soft transparent resin film is superposed on the lower surface of the transparent original, and is inserted from the transparent original inserting section 2a for reading. Since the transparent original 7 and the protective sheet 8 are conveyed at the same speed, the original glass 9 and the protective sheet 8 slide, but the transparent original 7 does not directly contact the original glass 9. Therefore, the transparent original 7 can be prevented from being damaged by sliding. Further, since the transparent original unit 2 conveys the transparent original 7 for reading, it is not necessary to move a large surface light source or a line light source, and the apparatus can be downsized, and
The manuscript can be set easily.
【０００７】図３は本発明のその他の具体例を示したも
ので、前記保護シート８は透過原稿７とは独立して駆動
されているが、速度は透過原稿７と同じである。本実施
例の保護シート８の巻き取り部８ａ、供給部８ｂを一体
型のカートリッジ形状とすることで交換が簡単になる。FIG. 3 shows another embodiment of the present invention. The protective sheet 8 is driven independently of the transparent original 7, but the speed is the same as that of the transparent original 7. The take-up part 8a and the supply part 8b of the protective sheet 8 of the present embodiment can be replaced easily by forming them into an integrated cartridge shape.
【０００８】図４は本発明のさらに別の実施例である。
ループ状の保護シート８は原稿送りローラ３、６によっ
て駆動されている。FIG. 4 shows another embodiment of the present invention.
The loop-shaped protective sheet 8 is driven by the document feed rollers 3 and 6.
【０００９】図５は本発明の更に別の実施例であり、白
色拡散板の代わりにループ状で薄肉軟質の白色均一拡散
面を持つ白色拡散シート１７を透過原稿７の上面に密着
させ、原稿送りローラー３、６によって原稿と同速度で
搬送されている。透過原稿７は同速度で搬送されている
原稿保護シート８と白色拡散シート１７によって上面下
面とも保護されるので、破損を完全に回避することが可
能である。FIG. 5 shows still another embodiment of the present invention. Instead of the white diffuser plate, a white diffuser sheet 17 having a loop-shaped, thin and soft white uniform diffuser surface is brought into close contact with the upper surface of the transparent original 7, and the original is The feed rollers 3 and 6 convey the document at the same speed. The transparent original 7 is protected on both the upper surface and the lower surface by the original protective sheet 8 and the white diffusion sheet 17 which are conveyed at the same speed, so that the damage can be completely avoided.
【００１０】[0010]
【発明の効果】以上のように本発明の構成によれば、破
損しやすい透過原稿を痛めることなく読み取りができ、
装置も小型軽量で、原稿の扱いを簡単にすることが可能
になる。As described above, according to the configuration of the present invention, it is possible to read a transparent original that is easily damaged without damaging it.
The device is also small and lightweight, which makes it easy to handle documents.
【図１】本発明にかかる画像読み取り装置の外観図を表
したもので、（ａ）は設置中を表し、（ｂ）は設置後、
読み取りを行う際の説明図である。FIG. 1 is an external view of an image reading apparatus according to the present invention, in which (a) shows during installation and (b) shows after installation.
It is explanatory drawing at the time of reading.
【図２】前記実施例のうち、透過原稿ユニットと一部読
み取り設置本体の断面図である。FIG. 2 is a cross-sectional view of a transparent original unit and a partial scanning installation main body in the embodiment.
【図３】本発明のその他の実施例の説明図である。FIG. 3 is an explanatory diagram of another embodiment of the present invention.
【図４】本発明の更に別な実施例の説明図である。FIG. 4 is an explanatory diagram of yet another embodiment of the present invention.
【図５】本発明の更に別な実施例の説明図である。FIG. 5 is an explanatory diagram of yet another embodiment of the present invention.
【図６】従来の画像読み取り装置の断面図を表してお
り、（ａ）は反射原稿読み取りの場合、（ｂ）は透過原
稿読み取りの場合を示す図である。6A and 6B are cross-sectional views of a conventional image reading apparatus, in which FIG. 6A is a diagram showing a reflective original reading, and FIG. 6B is a diagram showing a transparent original reading.
１ 読み取り装置本体 ２ 透過原稿ユニット ３ 原稿送りローラー ４ 透過原稿用ランプ ５ 白色拡散板 ６ 原稿送りローラ ７ 透過原稿 ８ 原稿保護シート ９ 原稿ガラス １０ 反射原稿ユニット １１ 反射原稿用ランプ １２ ミラー １３ 反射原稿 １４ レンズ １５ イメージセンサ １６ 透過原稿用照明ユニット １７ 白色拡散シート 1 Reading Device Main Body 2 Transparent Original Document Unit 3 Original Document Feeding Roller 4 Transparent Original Document Lamp 5 White Diffusing Plate 6 Original Document Feeding Roller 7 Transparent Original Document 8 Original Protective Sheet 9 Original Glass 10 Reflective Original Document Unit 11 Reflective Original Document Lamp 12 Mirror 13 Reflective Original Document 14 Lens 15 Image sensor 16 Transparent original illumination unit 17 White diffusion sheet
Claims (2)
装置本体と、透過原稿用照明と、白色拡散板と、透過原
稿用原稿搬送手段と、透過原稿に密着し透過原稿と同速
度で搬送される薄肉軟質透明樹脂部材から構成すること
を特徴とする画像読み取り装置。1. A reading device body having a set of optical systems for reflective originals, a transparent originals illumination, a white diffuser, an originals conveying means for transparent originals, and an original which is in close contact with the original and is conveyed at the same speed as the original. And an image reading device comprising a thin soft transparent resin member.
過原稿用原稿搬送部材、薄肉軟質透明部材からなる透過
原稿読み取り手段を、前記読み取り装置本体外に位置す
る１つのフレーム上に設けたユニットとして構成し、当
該ユニットを前記読み取り装置本体に着脱自在に取り付
けるように構成することを特徴とする請求項１記載の画
像読み取り装置。2. The transparent original reading means comprising the transparent original illumination, the white diffusion plate, the transparent original original conveying member and the thin soft transparent member is provided on one frame located outside the reading apparatus main body. The image reading apparatus according to claim 1, wherein the image reading apparatus is configured as a unit, and the unit is detachably attached to the reading apparatus main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281190A JPH05122453A (en) | 1991-10-28 | 1991-10-28 | Image reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3281190A JPH05122453A (en) | 1991-10-28 | 1991-10-28 | Image reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05122453A true JPH05122453A (en) | 1993-05-18 |
Family
ID=17635604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3281190A Pending JPH05122453A (en) | 1991-10-28 | 1991-10-28 | Image reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05122453A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7034967B2 (en) * | 1997-04-14 | 2006-04-25 | Nikon Corporation | Image reading apparatus and transparent original adapter |
| US7193752B2 (en) * | 2003-11-21 | 2007-03-20 | Benq Corporation | Automatic feeding apparatus |
-
1991
- 1991-10-28 JP JP3281190A patent/JPH05122453A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7034967B2 (en) * | 1997-04-14 | 2006-04-25 | Nikon Corporation | Image reading apparatus and transparent original adapter |
| US7193752B2 (en) * | 2003-11-21 | 2007-03-20 | Benq Corporation | Automatic feeding apparatus |
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