JPH0324761U - - Google Patents
Info
- Publication number
- JPH0324761U JPH0324761U JP8550489U JP8550489U JPH0324761U JP H0324761 U JPH0324761 U JP H0324761U JP 8550489 U JP8550489 U JP 8550489U JP 8550489 U JP8550489 U JP 8550489U JP H0324761 U JPH0324761 U JP H0324761U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light receiving
- receiving
- sensor
- sections
- 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)
Description
第１図は、この考案の一実施例に係るイメージ
センサのホトダイオードアレイを説明する図、第
２図は、同イメージセンサの電圧変換回路を説明
する図、第３図は、同イメージセンサの信号処理
回路を説明するブロツク図、第４図は、一般的な
イメージセンサの縦断面図、第５図ａ及び第５図
ｂは、同イメージセンサにおけるホトダイオード
アレイの配置を説明する図である。
２……ホトダイオードアレイ、４−６４，…，
４−１……電圧変換回路、ＰＤ−６４，…，ＰＤ
−１……受光部。
FIG. 1 is a diagram for explaining a photodiode array of an image sensor according to an embodiment of the invention, FIG. 2 is a diagram for explaining a voltage conversion circuit of the image sensor, and FIG. 3 is a diagram for explaining the signal of the image sensor. FIG. 4 is a block diagram illustrating a processing circuit, FIG. 4 is a vertical sectional view of a general image sensor, and FIGS. 5a and 5b are diagrams illustrating the arrangement of a photodiode array in the same image sensor. 2...Photodiode array, 4-64 ,...,
4-1 ...Voltage conversion circuit, PD -64 ,...,PD
-1 ... Light receiving section.
Claims (1)
してなる複数の受光センサと、前記原稿上の像を
それぞれの受光部上に結ばせる光学系と、前記受
光センサの各受光部よりの信号を処理する信号処
理回路とを備えてなるイメージセンサにおいて、 前記受光センサ端部の受光部の面積は、他の受
光部の面積よりも小さくし、前記信号処理回路で
は受光センサ端部の受光部に対するゲインを他の
受光部に対するゲインより大きくしたことを特徴
とするイメージセンサ。[Claims for Utility Model Registration] A light-emitting element that irradiates light onto a document, a plurality of light-receiving sensors formed by arranging light-receiving sections, an optical system that focuses an image on the document onto each of the light-receiving sections, and In an image sensor comprising a signal processing circuit that processes signals from each light receiving part of the light receiving sensor, the area of the light receiving part at the end of the light receiving sensor is smaller than the area of the other light receiving parts, and the signal processing circuit An image sensor characterized in that, in the circuit, a gain for a light receiving section at an end of the light receiving sensor is made larger than a gain for other light receiving sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8550489U JPH0324761U (en) | 1989-07-20 | 1989-07-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8550489U JPH0324761U (en) | 1989-07-20 | 1989-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0324761U true JPH0324761U (en) | 1991-03-14 |
Family
ID=31634674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8550489U Pending JPH0324761U (en) | 1989-07-20 | 1989-07-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0324761U (en) |
-
1989
- 1989-07-20 JP JP8550489U patent/JPH0324761U/ja active Pending
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