JPS6239469Y2 - - Google Patents
Info
- Publication number
- JPS6239469Y2 JPS6239469Y2 JP1982130601U JP13060182U JPS6239469Y2 JP S6239469 Y2 JPS6239469 Y2 JP S6239469Y2 JP 1982130601 U JP1982130601 U JP 1982130601U JP 13060182 U JP13060182 U JP 13060182U JP S6239469 Y2 JPS6239469 Y2 JP S6239469Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- light
- receiving element
- light receiving
- light emitting
- 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.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 claims description 24
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Lenses (AREA)
Description
【考案の詳細な説明】
本考案は、簡単な構成の反射型の光学センサー
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reflective optical sensor device having a simple configuration.
従来特開昭55−159273号公報のように発光部と
受光部とを並列に配置して複眼レンズと円偏光素
子などを用いた反射型の光学センサー装置が提案
されているが、設計及び製作が非常に複雑でコス
ト高となり、発光部と受光部が並列に配置されて
いるので両者間の遮光が必要である等の欠点があ
る。 A reflective optical sensor device has been proposed in which a light emitting part and a light receiving part are arranged in parallel and a compound eye lens and a circularly polarizing element are used, as disclosed in Japanese Patent Application Laid-Open No. 55-159273, but the design and manufacturing process However, it is very complicated and costly, and since the light emitting part and the light receiving part are arranged in parallel, there are drawbacks such as the need to shield light between them.
本考案の目的は、上述した欠点を解消して一枚
レンズを用いて簡単な構成で高い分解能が得られ
る反射型の光学センサー装置を提案することであ
る。 An object of the present invention is to solve the above-mentioned drawbacks and to propose a reflective optical sensor device that can obtain high resolution with a simple configuration using a single lens.
本考案の特徴は、同一の支持体に受光素子と発
光素子を配設し、上記受光素子をレンズの光軸上
に配設する一方、上記発光素子をレンズの光軸外
にかつ上記受光素子よりも上記レンズに接近する
ように形成した上記支持体に設けた段差部上に配
設し、上記発光素子の上記レンズによる合焦位置
を光学センサー装置の先端部の位置即ち被写体面
の位置よりも上記レンズに対して遠く離して配設
すると共に上記被写体面上の反射光が上記受光素
子上に結像するようにしたことである。 A feature of the present invention is that a light receiving element and a light emitting element are disposed on the same support, and the light receiving element is disposed on the optical axis of the lens, while the light emitting element is disposed off the optical axis of the lens, and the light receiving element is disposed on the optical axis of the lens. The light emitting element is arranged on a stepped portion provided on the support body formed to be closer to the lens, and the focusing position of the light emitting element by the lens is set from the position of the tip of the optical sensor device, that is, the position of the object surface. The light receiving element is arranged far away from the lens, and the reflected light on the subject surface is imaged on the light receiving element.
以下、図示の実施例で本考案を説明する。反射
型の光学センサー装置は第１図で筒状ケース１の
先端内側に筒状スペーサー２が嵌合突出され、ス
ペーサー２の先端外周に有底筒状のレンズ押え３
が嵌合されてその前面に絞り板４が挾み込まれる
ように筒状ケース１の先端とレンズ押え３と絞り
板４の外周に中空筒状カバー５の後側筒部５ａが
嵌合固定され、中空筒状カバー５の先端５ｂ外周
は尖頭形に形成されて中心に小径の透孔５ｃが穿
設され、中空筒状カバー５の前側筒部５ｄ内に反
射筒６が嵌合され、上記スペーサー２の先端には
レンズ７が取り付けられ、スペーサー２の後端に
は支持体８が嵌合固定されて支持体８の表面中心
光軸Ｌ上に受光素子９が、受光素子９の周囲にリ
ング状の段差部１０が夫々固定されて段差部１０
上に第１図、第２図のように複数個の発光素子１
１が固定され、支持体８に固定された端子１２，
１３と上記受光素子９、発光素子１１間には夫々
リード線１４，１５が接続されている。 The present invention will be explained below with reference to illustrated embodiments. In the reflective optical sensor device shown in FIG. 1, a cylindrical spacer 2 is fitted and projected inside the tip of a cylindrical case 1, and a bottomed cylindrical lens holder 3 is attached to the outer periphery of the tip of the spacer 2.
The rear cylinder part 5a of the hollow cylindrical cover 5 is fitted and fixed to the tip of the cylindrical case 1, the lens holder 3, and the outer periphery of the diaphragm plate 4 so that the diaphragm plate 4 is inserted into the front surface of the cylindrical case 1. The outer periphery of the tip 5b of the hollow cylindrical cover 5 is formed into a pointed shape, and a small diameter through hole 5c is bored in the center, and the reflective tube 6 is fitted into the front cylindrical portion 5d of the hollow cylindrical cover 5. A lens 7 is attached to the tip of the spacer 2, a support 8 is fitted and fixed to the rear end of the spacer 2, and a light receiving element 9 is placed on the optical axis L at the center of the surface of the support 8. A ring-shaped stepped portion 10 is fixed around each of the stepped portions 10.
As shown in FIGS. 1 and 2, a plurality of light emitting elements 1 are shown above.
1 is fixed and a terminal 12 fixed to a support 8,
Lead wires 14 and 15 are connected between the light receiving element 13, the light receiving element 9, and the light emitting element 11, respectively.
上記カバー５の先端５ｂは被写体１６上に当接
され、被写体１６面には例えばバーコードが印刷
されている。 The tip 5b of the cover 5 is brought into contact with the subject 16, and a bar code, for example, is printed on the surface of the subject 16.
上記レンズ７の合焦距離Ｆは該レンズ７と被写
体１６の面までの距離Ｄよりも長く、かつ被写体
１６の面上からの反射光が受光素子９上に結像す
るように構成されている。即ち、発光素子１１の
上記レンズ７による合焦位置を光学センサー装置
の先端５ｂの位置即ち被写体１６の面の位置より
も上記レンズ７に対して遠く離して配設すると共
に、上記被写体１６の面上の反射光が上記受光素
子９に結像するように構成されている。 The focusing distance F of the lens 7 is longer than the distance D between the lens 7 and the surface of the subject 16, and the lens 7 is configured so that the reflected light from the surface of the subject 16 forms an image on the light receiving element 9. . That is, the focusing position of the light emitting element 11 by the lens 7 is arranged farther away from the lens 7 than the position of the tip 5b of the optical sensor device, that is, the position of the surface of the object 16, and The structure is such that the reflected light above is imaged on the light receiving element 9.
反射型の光学センサー装置が上述のように構成
されて発光素子１１から出た光はレンズ７と絞り
板４の絞り孔４ａと中空筒状カバー５の透孔５ｃ
を通して被写体１６の面上を照射し、面上からの
反射光は透孔５ｃ、絞り孔４ａ、レンズ７を通し
て受光素子９に入射され、中空筒状カバー５又は
被写体１６を移動することで検出信号が受光素子
９から出力される。 The reflective optical sensor device is configured as described above, and the light emitted from the light emitting element 11 passes through the lens 7, the aperture hole 4a of the aperture plate 4, and the through hole 5c of the hollow cylindrical cover 5.
The reflected light from the surface is incident on the light receiving element 9 through the through hole 5c, the aperture hole 4a, and the lens 7, and by moving the hollow cylindrical cover 5 or the object 16, a detection signal is generated. is output from the light receiving element 9.
上記絞り板４を用いることで周辺光がカツトさ
れてレンズ収差の影響がのぞかれ、被写界深度が
深くなつてＳ／Ｎ比が改善されて分解能が向上さ
れる。 By using the aperture plate 4, peripheral light is cut out, the effects of lens aberrations are removed, the depth of field is deepened, the S/N ratio is improved, and the resolution is improved.
上記反射筒６を用いると発光素子１１から出る
ごく僅かな照射光が反射筒による反射照射光で補
光されて被写体１６に達し光が有効に利用され
る。 When the reflector tube 6 is used, the very small amount of light emitted from the light emitting element 11 is supplemented by the reflected light from the reflector tube and reaches the subject 16, making effective use of the light.
上記受光素子９と発光素子１１を同一の支持体
８に配設し、上記受光素子９をレンズの光軸Ｌ上
に配設する一方、上記発光素子１１を上記レンズ
の光軸Ｌ外にかつ上記受光素子９よりも上記レン
ズに接近するように形成した上記支持体８に設け
た段差部１０上に配設するようにしたので、受光
素子９と発光素子１１とが同一の支持体８に配設
されることにより組み立て及び配線が簡単になる
ことに加えて、発光素子１１の光が直接受光素子
９に入射されないのでＳ／Ｎ比が向上されて分解
能の向上に寄与される。 The light-receiving element 9 and the light-emitting element 11 are arranged on the same support 8, and the light-receiving element 9 is arranged on the optical axis L of the lens, while the light-emitting element 11 is arranged outside the optical axis L of the lens. Since the light receiving element 9 and the light emitting element 11 are disposed on the stepped portion 10 provided on the support 8 which is formed closer to the lens than the light receiving element 9, the light receiving element 9 and the light emitting element 11 are placed on the same support 8. This arrangement not only simplifies assembly and wiring, but also improves the S/N ratio because the light from the light emitting element 11 is not directly incident on the light receiving element 9, contributing to improved resolution.
上記発光素子１１の上記レンズ７による合焦位
置を光学センサー装置の先端５ｂの位置即ち被写
体１６の面の位置よりも上記レンズ７に対して遠
く離して配設すると被写体１６面上では広い範囲
に、より一様に光が照射される。発光素子は１個
で構成してもよい。 If the focusing position of the light emitting element 11 by the lens 7 is placed farther away from the lens 7 than the position of the tip 5b of the optical sensor device, that is, the position of the surface of the object 16, a wider range will be formed on the surface of the object 16. , the light is irradiated more uniformly. The number of light emitting elements may be one.
上記被写体面上からの反射光が受光素子９上に
結像されると高い分解能で精度の高い読み取り検
出信号が得られる。 When the reflected light from the subject surface is imaged on the light receiving element 9, a highly accurate reading detection signal with high resolution can be obtained.
上記説明では被写体面上のバーコードのセンサ
ー部として用い、バーコードを読み取ることで述
べたが他のカードのエツジやテープエツジなどの
検出や、エンコーダの検出部としてもよく汎用性
をもつた反射型の光学センサー装置である。 In the above explanation, it is used as a barcode sensor section on the subject surface to read barcodes, but it is also a versatile reflective type that can be used to detect edges of other cards, tape edges, etc., and can also be used as a detection section for encoders. This is an optical sensor device.
本考案は上述のように構成されたから、発光素
子の光が段差部で直接受光素子に入射されず簡単
に遮光され、又受光素子と発光素子とが同一の支
持体に配設されることにより組み立て及び配線が
簡単になる他、受光素子の上記レンズによる合焦
位置を光学センサー装置の先端の位置即ち被写体
の面の位置よりも上記レンズに対して遠く離して
配設することにより被写体面上では広い範囲に、
被写体面上に広い範囲に、より一様に光が照射さ
れ、かつ被写体面上からの反射光は受光素子上に
結像されるのでＳ／Ｎ比が高く、分解能が極めて
優れ、構成が簡単である等実用上優れた効果を奏
する反射型の光学センサー装置を提供することが
できる。 Since the present invention is constructed as described above, the light from the light emitting element is not directly incident on the light receiving element at the stepped portion and is easily blocked, and the light receiving element and the light emitting element are disposed on the same support. In addition to simplifying assembly and wiring, by arranging the focusing position of the light-receiving element by the lens further away from the lens than the position of the tip of the optical sensor device, that is, the position of the object surface, the focus position can be placed on the object surface. Then, in a wide range,
Light is illuminated more uniformly over a wide area on the subject surface, and the reflected light from the subject surface is imaged onto the light-receiving element, resulting in a high S/N ratio, extremely excellent resolution, and simple configuration. It is possible to provide a reflective optical sensor device that has excellent practical effects such as.
図面は本考案の一実施例が示され、第１図は反
射型の光学センサー装置の断面側面図、第２図は
受光素子と発光素子の配置を示す正面図である。
７……レンズ、９……受光素子、１０……段差
部、１１……発光素子、１６……被写体、Ｆ……
合焦距離、Ｄ……レンズから被写体までの距離、
Ｌ……光軸。
The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional side view of a reflective optical sensor device, and FIG. 2 is a front view showing the arrangement of a light receiving element and a light emitting element. 7... Lens, 9... Light receiving element, 10... Step portion, 11... Light emitting element, 16... Subject, F...
Focusing distance, D...Distance from the lens to the subject,
L...Optical axis.
Claims (1)
上記受光素子をレンズの光軸上に配設する一方、
上記発光素子をレンズの光軸外にかつ上記受光素
子よりも上記レンズに接近するように形成した上
記支持体に設けた段差部上に配設し、上記発光素
子の上記レンズによる合焦位置を光学センサー装
置の先端部の位置即ち被写体面の位置よりも上記
レンズに対して遠く離して配設すると共に上記被
写体面上の反射光が上記受光素子上に結像するよ
うに構成した反射型の光学センサー装置。 A light receiving element and a light emitting element are arranged on the same support,
While disposing the light receiving element on the optical axis of the lens,
The light emitting element is disposed on a stepped portion of the support formed outside the optical axis of the lens and closer to the lens than the light receiving element, and the focusing position of the light emitting element by the lens is adjusted. A reflective type optical sensor, which is arranged at a distance from the lens further than the position of the tip of the optical sensor device, that is, the position of the object surface, and configured so that the reflected light on the object surface is imaged on the light receiving element. Optical sensor device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13060182U JPS5937648U (en) | 1982-08-31 | 1982-08-31 | Reflective optical sensor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13060182U JPS5937648U (en) | 1982-08-31 | 1982-08-31 | Reflective optical sensor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937648U JPS5937648U (en) | 1984-03-09 |
| JPS6239469Y2 true JPS6239469Y2 (en) | 1987-10-08 |
Family
ID=30295539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13060182U Granted JPS5937648U (en) | 1982-08-31 | 1982-08-31 | Reflective optical sensor device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937648U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4675531A (en) * | 1985-03-28 | 1987-06-23 | Polaroid Corporation | Optical scanner having a multi-surfaced lens arrangement for producing a rotationally symmetric beam |
| JPS629064U (en) * | 1985-07-01 | 1987-01-20 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5679368A (en) * | 1979-11-30 | 1981-06-29 | Mekano Kk | Pen type bar-code reader |
-
1982
- 1982-08-31 JP JP13060182U patent/JPS5937648U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5679368A (en) * | 1979-11-30 | 1981-06-29 | Mekano Kk | Pen type bar-code reader |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5937648U (en) | 1984-03-09 |
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