JPH01129958U - - Google Patents
Info
- Publication number
- JPH01129958U JPH01129958U JP2413488U JP2413488U JPH01129958U JP H01129958 U JPH01129958 U JP H01129958U JP 2413488 U JP2413488 U JP 2413488U JP 2413488 U JP2413488 U JP 2413488U JP H01129958 U JPH01129958 U JP H01129958U
- Authority
- JP
- Japan
- Prior art keywords
- photoelectric conversion
- lens system
- conversion element
- image
- wiring board
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図は本考案の一実施例を示す光電変換装置
の概略構成断面図、第２図は従来例の光電変換装
置の概略構成図である。
１１……原稿、１２……送りローラ、１３……
光源、１４……レンズ系、１５……ホルダー、１
６……プリント配線基板、１７……光電変換素子
。
FIG. 1 is a schematic sectional view of a photoelectric conversion device showing an embodiment of the present invention, and FIG. 2 is a schematic structure diagram of a conventional photoelectric conversion device. 11... Original, 12... Feed roller, 13...
Light source, 14... Lens system, 15... Holder, 1
6...Printed wiring board, 17...Photoelectric conversion element.
Claims (1)
た原稿からの反射光を結像させる複数枚のプラス
チツクレンズから成るレンズ系と、該レンズ系を
通過して結像される前記反射光の像を電気信号に
変換する光電変換素子と、該光電変換素子が取り
付けられるプリント配線基板と、該プリント配線
基板上に設置されると共に前記レンズ系と光電変
換素子とを支持するプラスチツク製のホルダーと
を備え、該ホルダーを前記レンズ系の温度による
焦点距離変化を相殺するように熱膨張係数を有す
る材質にて形成したことを特徴とする光電変換装
置。 A lens system consisting of a light source that illuminates the surface of a document, a plurality of plastic lenses that forms an image of light reflected from the document illuminated by the light source, and an image of the reflected light that passes through the lens system and forms an image. a photoelectric conversion element that converts the photoelectric conversion element into an electrical signal, a printed wiring board to which the photoelectric conversion element is attached, and a plastic holder installed on the printed wiring board and supporting the lens system and the photoelectric conversion element. 1. A photoelectric conversion device, wherein the holder is made of a material having a coefficient of thermal expansion so as to offset changes in focal length due to temperature of the lens system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413488U JPH01129958U (en) | 1988-02-25 | 1988-02-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2413488U JPH01129958U (en) | 1988-02-25 | 1988-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01129958U true JPH01129958U (en) | 1989-09-05 |
Family
ID=31243720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2413488U Pending JPH01129958U (en) | 1988-02-25 | 1988-02-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01129958U (en) |
-
1988
- 1988-02-25 JP JP2413488U patent/JPH01129958U/ja active Pending
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