JP7193056B2

JP7193056B2 - Linear illumination device

Info

Publication number: JP7193056B2
Application number: JP2018244721A
Authority: JP
Inventors: 和幸森
Original assignee: Kyoto Denkiki Co Ltd
Current assignee: Kyoto Denkiki Co Ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2022-12-20
Anticipated expiration: 2038-12-27
Also published as: JP2020107475A

Description

本発明は、線状照明装置に関する。

The present invention relates to linear illumination devices.

従来より、ＣＣＤカメラ等による撮像を利用した品質検査では、照明装置を用いて被検査物の表面を線状に照明する。例えば、特許文献１に開示の照明装置は、照明装置本体の天板面に固定された複数のＬＥＤと、照明装置本体に収容されてＬＥＤの下方に位置するロッドレンズと、ボルトによって照明装置本体の下端部に取付けられた拡散レンズと、を備え、各ＬＥＤから発せられた光はロッドレンズと拡散レンズを介して照射面に照射される。 Conventionally, in quality inspection using imaging by a CCD camera or the like, a lighting device is used to linearly illuminate the surface of an object to be inspected. For example, the lighting device disclosed in Patent Document 1 includes a plurality of LEDs fixed to the top plate surface of the lighting device main body, a rod lens housed in the lighting device main body and positioned below the LEDs, and bolts that are connected to the lighting device main body. and a diffusing lens attached to the lower end of the LED, and the light emitted from each LED is irradiated onto the irradiation surface via the rod lens and the diffusing lens.

特開２００７－２２５５９１JP 2007-225591

ＬＥＤが劣化してこれを交換する場合、特許文献１の構成では照明装置本体から拡散レンズ及びロッドレンズを取り外さなければＬＥＤにアクセスできず、また拡散レンズやロッドレンズ等の光学部品を照明装置本体に取り付ける際には再度光軸の調整が必要となり、手間がかかるという問題があった。 When the LED deteriorates and needs to be replaced, in the configuration of Patent Document 1, the LED cannot be accessed unless the diffuser lens and the rod lens are removed from the lighting device main body, and optical parts such as the diffusion lens and the rod lens cannot be removed from the lighting device main body. There was a problem that the optical axis had to be adjusted again when attaching it to the camera, which took a lot of time and effort.

また、樹脂製の光学部品を用いた場合には、経年劣化した光学部品を交換する必要が生じる場合があった。 In addition, when optical parts made of resin are used, it may be necessary to replace the optical parts that have deteriorated over time.

本発明は、光源へのアクセスを容易にできる照明装置の提供を目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a lighting device that facilitates access to the light source.

本発明に係る照明装置は、ハウジングと、前記ハウジングに収容された反射鏡と、前記ハウジングに着脱可能に装着される蓋部材と、前記蓋部材の内面に装着された光源ユニットと、を有し、前記ハウジングは、第１面と、前記第１面と直交する方向に延びる第２面と、を有し、前記第１面には保守用開口部が設けられ、前記第２面には光照射口が設けられ、前記蓋部材は前記ハウジングに装着されて前記保守用開口部を覆い、前記光源ユニットは、基板と、前記基板に実装された光源と、を有し、前記光源から発せられた光は、前記反射鏡により前記光照射口に向かう方向へ反射され、前記光照射口を介して外部に照射されることを特徴とする。 A lighting device according to the present invention includes a housing, a reflector housed in the housing, a cover member detachably attached to the housing, and a light source unit attached to the inner surface of the cover member. , the housing has a first surface and a second surface extending in a direction perpendicular to the first surface, the first surface being provided with a maintenance opening, and the second surface being provided with a light source. an irradiation port is provided, the cover member is attached to the housing to cover the maintenance opening, the light source unit has a substrate and a light source mounted on the substrate, and emits light from the light source. The reflected light is reflected in a direction toward the light irradiation port by the reflecting mirror, and is irradiated to the outside through the light irradiation port.

本発明に係る照明装置によれば、蓋部材の内面に光源ユニットが装着されているので、蓋部材をハウジングから取り外すだけで光源ユニットに簡単にアクセスできる。また、蓋部材が装着される保守用開口部は光照射口が設けられた第２面と直交する第１面に設けられているので、第２面の反対側の底面に補強金具が取り付けられた場合であっても、補強金具を取り外すことなく蓋部材を取り外して光源ユニットにアクセスできる。 According to the lighting device of the present invention, since the light source unit is attached to the inner surface of the lid member, the light source unit can be easily accessed by simply removing the lid member from the housing. Further, since the maintenance opening to which the cover member is attached is provided on the first surface orthogonal to the second surface on which the light irradiation port is provided, the reinforcing metal fitting is attached to the bottom surface on the opposite side of the second surface. Even in this case, the light source unit can be accessed by removing the cover member without removing the reinforcing metal fitting.

本発明の実施形態に係る照明装置の正面図。1 is a front view of a lighting device according to an embodiment of the present invention; FIG. （ａ）は図１のＩＩ線断面図、（ｂ）は（ａ）に示す状態から蓋部材を取り外した状態を示す図。(a) is a sectional view taken along line II in FIG. 1, and (b) is a diagram showing a state in which a lid member is removed from the state shown in (a). 図１に示す照明装置が補強金具に装着された状態を示す図であって、（ａ）は側面図、（ｂ）は正面図。1. It is a figure which shows the state with which the illuminating device shown in FIG. 1 was mounted|worn with the reinforcement metal fitting, (a) is a side view, (b) is a front view.

以下、添付図面を参照して、本発明の実施形態に係る照明装置について説明する。図１及び図２を参照して、本実施形態の照明装置１は照射面（図示せず）を線状に照明する線状照明装置であって、ハウジング２と、ハウジング２に収容された反射鏡３と、ハウジング３に着脱可能に装着される蓋部材４と、蓋部材４の内面４１に装着された光源ユニット５と、を有する。 A lighting device according to an embodiment of the present invention will be described below with reference to the accompanying drawings. 1 and 2, a lighting device 1 of the present embodiment is a linear lighting device that linearly illuminates an irradiation surface (not shown), and includes a housing 2 and a reflector housed in the housing 2. It has a mirror 3 , a cover member 4 detachably attached to the housing 3 , and a light source unit 5 attached to an inner surface 41 of the cover member 4 .

ハウジング２は、照明装置１の長手方向Ｄ１に延びて短手方向Ｄ２に相互に対向する一対の長尺な側面２Ａ，２Ｂと、側面２Ａ，２Ｂと直交して長手方向Ｄ１に延びる長尺な表面２Ｃ及び底面２Ｄと、を有する。側面２Ａ（第１面）には保守用開口部Ｈ１が設けられ、表面２Ｃ（第２面）には光照射口Ｈ２が設けられ、光照射口Ｈ２には透明封止板７がはめ込まれている。 The housing 2 includes a pair of long side surfaces 2A and 2B extending in the longitudinal direction D1 of the lighting device 1 and facing each other in the short direction D2, and a long long side surface 2A and 2B extending in the longitudinal direction D1 perpendicular to the side surfaces 2A and 2B. a surface 2C and a bottom surface 2D. A maintenance opening H1 is provided on the side surface 2A (first surface), a light irradiation port H2 is provided on the surface 2C (second surface), and a transparent sealing plate 7 is fitted in the light irradiation port H2. there is

より具体的に、ハウジング２は本体部２０を備え、本体部２０は、側面２Ｂを有する第１側壁２１と、第１側壁２１の下端から垂直に延びて底面２Ｄを有する底壁２２と、を備える。ハウジング２０は更に、第１側壁２１と短手方向Ｄ２に間隔を空けて対向配置された第２側壁２３を備え、第１側壁２１と第２側壁２３の間に光照射口Ｈ２が規定されている。第２側壁２３は側面２Ａを有し、保守用開口部Ｈ１を規定する第２側壁２３の下端縁には断面クランク状の段部２３ａが設けられている。 More specifically, the housing 2 includes a main body portion 20 having a first side wall 21 having a side surface 2B and a bottom wall 22 extending vertically from the lower end of the first side wall 21 and having a bottom surface 2D. Prepare. The housing 20 further includes a second side wall 23 opposed to and spaced from the first side wall 21 in the transverse direction D2. there is The second side wall 23 has a side surface 2A, and a stepped portion 23a having a crank-shaped cross section is provided at the lower edge of the second side wall 23 that defines the maintenance opening H1.

反射鏡３は断面凹状の反射面３０を有し、ハウジング２内に固定されている。蓋部材４は、保守用開口部Ｈ１を覆うものであり、蓋部材４の上端部には第２側壁２３の段部２３ａと嵌合する断面クランク状の段部４ａが設けられている。蓋部材４をハウジング２に取り付ける際には、蓋部材４の段部４ａを第２側壁２３の段部２３ａに当接させて位置決めし、複数個のビス６を用いてハウジング２に固定する。 The reflecting mirror 3 has a reflecting surface 30 with a concave cross section and is fixed within the housing 2 . The lid member 4 covers the maintenance opening H1, and has a stepped portion 4a with a crank-shaped cross section that fits with the stepped portion 23a of the second side wall 23 at the upper end portion of the lid member 4. As shown in FIG. When attaching the lid member 4 to the housing 2 , the stepped portion 4 a of the lid member 4 is brought into contact with the stepped portion 23 a of the second side wall 23 for positioning, and fixed to the housing 2 using a plurality of screws 6 .

光源ユニット５は、蓋部材４の内面４１に装着された基板５１と、基板５１に実装された複数個の光源５２（図２には１個のみ示す）と、を有し、光源５２としてはＬＥＤであるのが好ましい。基板５１は照明装置１の長手方向Ｄ１に沿って延在し、複数個の光源５２は長手方向Ｄ１に沿って一列に配列されている。また、各光源５２は反射鏡３の反射面３０に対向すると共に、各光源５２の光軸は側面２Ａに対して直角（表面２Ｂと平行）となる様に配設されている。各光源５２から発せられた光は反射鏡３の反射面３０により光照射口Ｈ２に向かう方向へ反射され、光照射口Ｈ２を介して外部に照射される。 The light source unit 5 has a substrate 51 mounted on the inner surface 41 of the lid member 4, and a plurality of light sources 52 (only one is shown in FIG. 2) mounted on the substrate 51. The light sources 52 are LEDs are preferred. The substrate 51 extends along the longitudinal direction D1 of the illumination device 1, and the plurality of light sources 52 are arranged in a row along the longitudinal direction D1. Each light source 52 faces the reflecting surface 30 of the reflecting mirror 3, and the optical axis of each light source 52 is arranged perpendicular to the side surface 2A (parallel to the surface 2B). The light emitted from each light source 52 is reflected by the reflecting surface 30 of the reflecting mirror 3 in the direction toward the light irradiation port H2, and is irradiated to the outside through the light irradiation port H2.

このように構成された照明装置１において光源ユニット５にアクセスするには、ビス６を取り外し、蓋部材４を光源ユニット５と共にハウジング２から取り外せばよく、光源ユニット５の交換等を容易に行うことができる。 In order to access the light source unit 5 in the illumination device 1 configured as described above, the screw 6 is removed and the cover member 4 is removed from the housing 2 together with the light source unit 5, so that the light source unit 5 can be easily replaced. can be done.

ここで、長手方向Ｄ１における照明装置１の長さ寸法が数メートル乃至１０メートルにも及ぶような場合には、照明装置１の撓みを防止するために図３に示す様に補強金具Ｋを用いることが多い。このような補強金具Ｋは、ハウジング２の底面２Ｄに当接するように装着されて、照明装置１（ハウジング２）を補強する。なお、補強金具Ｋをハウジング２の底面２Ｄに代えて側面２Ａ又は側面２Ｂに当接させて装着させることも考えられるが、このように補強金具Ｋを装着させると、補強金具Ｋと光照射口Ｈ２との距離が近くなり過ぎて、照明装置１を用いた品質検査の際に補強金具Ｋが邪魔になり好ましくない。 Here, if the length dimension of the illumination device 1 in the longitudinal direction D1 is several meters to 10 meters, a reinforcing metal fitting K is used as shown in FIG. 3 to prevent the illumination device 1 from bending. There are many things. Such a reinforcing metal fitting K is attached so as to abut on the bottom surface 2D of the housing 2 to reinforce the lighting device 1 (housing 2). It is conceivable that the reinforcing metal fitting K is mounted in contact with the side surface 2A or the side surface 2B instead of the bottom surface 2D of the housing 2. If the distance to H2 is too short, the reinforcing metal fitting K will interfere with the quality inspection using the illumination device 1, which is not preferable.

また、保守用開口部Ｈ１を側面２Ａに代えて底面２Ｄに設けることも考えられるが、この場合には蓋部材４の取り外しの際に補強金具Ｋを取り外す必要が生じ、手間がかかる。この点、本実施形態においては、保守用開口部Ｈ１を側面２Ａに設け、蓋部材４を側面２Ａと直交する方向（図２（ｂ）に矢印Ａで示す方向）に取り外せるように構成したため、図３に示す様に補強金具Ｋに照明装置１を装着させても、補強金具Ｋを照明装置１から取り外すことなく蓋部材４をハウジング２から取り外すことができる。 It is also conceivable to provide the maintenance opening H1 on the bottom surface 2D instead of the side surface 2A, but in this case, when removing the lid member 4, it becomes necessary to remove the reinforcing metal fitting K, which is troublesome. In this respect, in the present embodiment, the maintenance opening H1 is provided in the side surface 2A, and the cover member 4 is configured to be removable in the direction perpendicular to the side surface 2A (the direction indicated by the arrow A in FIG. 2B). Even if the lighting device 1 is attached to the reinforcing metal fitting K as shown in FIG.

また、本実施形態では光学部品として反射鏡３を用い、経年劣化しやすい樹脂製の光学部品（拡散レンズやロッドレンズ等）は用いないため、光学部品の交換が不要となる。 In addition, since the present embodiment uses the reflecting mirror 3 as an optical component and does not use a resin-made optical component (diffusing lens, rod lens, etc.) that is likely to deteriorate over time, it is not necessary to replace the optical component.

以上、本発明の実施形態に係る照明装置について添付の図面を参照して説明したが、本発明はかかる実施形態に限定されず、本発明の範囲を逸脱することなく種々の変形、修正が可能である。 Although the illumination device according to the embodiments of the present invention has been described with reference to the accompanying drawings, the present invention is not limited to such embodiments, and various modifications and modifications are possible without departing from the scope of the present invention. is.

例えば、上記実施形態においてはレンズを使用せず、断面凹状の反射面３０を有する反射鏡３を用いたが、反射鏡３０に代えて平面状の反射面を有する反射鏡を用い、当該反射鏡と光照射口Ｈ２の間に集光レンズ等の光学部品を配置させてもよい。この場合にも、集光レンズ等の光学部品を取り外すことなく光源ユニット５へのアクセスが可能となる。 For example, in the above-described embodiment, the reflecting mirror 3 having the reflecting surface 30 with a concave cross section is used without using a lens. and the light irradiation port H2, an optical component such as a condensing lens may be arranged. In this case also, access to the light source unit 5 is possible without removing the optical parts such as the condenser lens.

１照明装置
２ハウジング
２Ａ，２Ｂ側面
２Ｃ表面
３反射鏡
４蓋部材
５光源ユニット（ＬＥＤユニット）
７透明封止板
Ｈ１保守用開口部
Ｈ２光照射口 Reference Signs List 1 illumination device 2 housings 2A, 2B side surface 2C surface 3 reflector 4 lid member 5 light source unit (LED unit)
7 Transparent sealing plate H1 Maintenance opening H2 Light irradiation port

Claims

照射面を線状に照明する線状照明装置であって、
前記線状照明装置の長手方向に沿って延びるハウジングと、
前記ハウジングに収容された反射鏡と、
前記長手方向に沿って延び、前記ハウジングに着脱可能に装着される蓋部材と、
前記蓋部材の内面に装着された光源ユニットと、を有し、
前記ハウジングは、光照射口が設けられた側壁と、保守用開口部が設けられ前記側壁に対し直交する他の側壁と、を備え、
前記ハウジングの前記他の側壁は、前記保守用開口部を規定する側縁を有し、前記側縁には段部が設けられ、
前記蓋部材は、前記段部に当接されて位置決めされ、前記ハウジングに装着されて前記保守用開口部を覆い、
前記光源ユニットは、前記蓋部材の前記内面に装着された基板と、前記基板に実装され、前記長手方向に沿って配列された複数個の光源と、から構成され、
前記蓋部は、前記反射鏡を含む光学部品を取り外すことなく、前記ハウジングから取り外し可能であり、
前記光源から発せられた光は、前記反射鏡により前記光照射口に向かう方向へ反射され、前記光照射口を介して前記照射面を線状に照明することを特徴とする線状照明装置。 A linear lighting device that linearly illuminates an irradiation surface,
a housing extending along the longitudinal direction of the linear illumination device ;
a reflector housed in the housing;
a lid member extending along the longitudinal direction and detachably attached to the housing;
a light source unit attached to the inner surface of the lid member;
The housing includes a side wall provided with a light irradiation port and another side wall provided with a maintenance opening and orthogonal to the side wall,
the other side wall of the housing has a side edge defining the maintenance opening, the side edge being provided with a step;
the lid member is positioned in contact with the stepped portion and is mounted on the housing to cover the maintenance opening;
The light source unit includes a substrate attached to the inner surface of the lid member, and a plurality of light sources mounted on the substrate and arranged along the longitudinal direction ,
the lid is removable from the housing without removing optical components including the reflector;
A linear illumination device, wherein light emitted from the light source is reflected by the reflecting mirror in a direction toward the light irradiation port, and linearly illuminates the irradiation surface through the light irradiation port.

前記蓋部材の端部には、前記段部と嵌合する他の段部が設けられ、前記蓋部材は前記他の段部が前記側壁の前記段部に当接されて位置決めされ、 Another stepped portion that fits with the stepped portion is provided at an end of the lid member, and the other stepped portion of the lid member is positioned by contacting the stepped portion of the side wall,
前記蓋部材の外面は、前記他の側壁と面一であることを特徴とする請求項１に記載の線状照明装置。2. The linear illumination device according to claim 1, wherein the outer surface of the lid member is flush with the other side wall.