JPS6397957U - - Google Patents
Info
- Publication number
- JPS6397957U JPS6397957U JP19261386U JP19261386U JPS6397957U JP S6397957 U JPS6397957 U JP S6397957U JP 19261386 U JP19261386 U JP 19261386U JP 19261386 U JP19261386 U JP 19261386U JP S6397957 U JPS6397957 U JP S6397957U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- photoelectric conversion
- conversion section
- body case
- main body
- 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 5
- 230000003287 optical effect Effects 0.000 claims 1
- 238000003705 background correction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Systems Of Projection Type Copiers (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図ないし第４図はこの考案の一実施例を示
すもので、第１図は縦断側面図、第２図は分解斜
視図、第３図はレンズの一端に対向するシエーデ
イング補正片の形状を示す一部の背面図、第４図
はシエーデイング補正片の倒れにともなう光線の
拡散状態を示す側面図、第５図ないし第９図は従
来例を示すもので、第５図は読み取り動作の原理
を示す説明図、第６図は光電変換部の出力の変化
を示すグラフ、第７図及び第８図はシエーデイン
グ補正手段を示す斜視図、第９図はシエーデイン
グ補正片の倒れにともなう光線の拡散状態を示す
側面図である。
１……本体ケース、８……ＣＣＤイメージセン
サ（光電変換部）、１０……レンズ、１２……シ
エーデイング補正片。
Figures 1 to 4 show an embodiment of this invention, in which Figure 1 is a longitudinal side view, Figure 2 is an exploded perspective view, and Figure 3 is the shape of a shedding correction piece facing one end of the lens. FIG. 4 is a side view showing the state of diffusion of light rays as the shading correction piece falls down, FIGS. 5 to 9 show conventional examples, and FIG. 5 shows the reading operation. An explanatory diagram showing the principle, FIG. 6 is a graph showing changes in the output of the photoelectric conversion section, FIGS. 7 and 8 are perspective views showing the shedding correction means, and FIG. It is a side view showing a diffusion state. 1... Body case, 8... CCD image sensor (photoelectric conversion section), 10... Lens, 12... Shading correction piece.
Claims (1)
保持された本体ケースに画像記録面からの反射光
を通すレンズを前記光電変換部に対して接離する
方向に移動自在及び任意位置固定自在に設け、前
記本体ケースに、前記光電変換部の反対側で前記
レンズの端面に対向してこのレンズの移動方向と
同方向に移動自在及び任意位置固定自在に装着さ
れた少なくとも一片のシエーデイング補正片を設
けたことを特徴とする光学読取装置。 A lens for passing reflected light from an image recording surface is attached to a main body case holding a photoelectric conversion section that converts the brightness and darkness of a light beam into an electrical signal, and is movable toward and away from the photoelectric conversion section and can be fixed at any position. and at least one shedding correction piece is mounted on the main body case so as to be movable in the same direction as the moving direction of the lens and to be fixed at any position, facing the end surface of the lens on the opposite side of the photoelectric conversion section. An optical reading device characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19261386U JPS6397957U (en) | 1986-12-15 | 1986-12-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19261386U JPS6397957U (en) | 1986-12-15 | 1986-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6397957U true JPS6397957U (en) | 1988-06-24 |
Family
ID=31147859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19261386U Pending JPS6397957U (en) | 1986-12-15 | 1986-12-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6397957U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006119481A (en) * | 2004-10-25 | 2006-05-11 | Ricoh Co Ltd | Image reading unit, image forming apparatus equipped with the image reading unit, and method for assembling the image reading unit |
-
1986
- 1986-12-15 JP JP19261386U patent/JPS6397957U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006119481A (en) * | 2004-10-25 | 2006-05-11 | Ricoh Co Ltd | Image reading unit, image forming apparatus equipped with the image reading unit, and method for assembling the image reading unit |