JPH02147965U - - Google Patents
Info
- Publication number
- JPH02147965U JPH02147965U JP5632289U JP5632289U JPH02147965U JP H02147965 U JPH02147965 U JP H02147965U JP 5632289 U JP5632289 U JP 5632289U JP 5632289 U JP5632289 U JP 5632289U JP H02147965 U JPH02147965 U JP H02147965U
- Authority
- JP
- Japan
- Prior art keywords
- light
- amount
- light source
- emitted
- sensor
- 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.)
- Granted
Links
- 238000005286 illumination Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
- Image Input (AREA)
Description
第１図は本考案の一実施例を示すブロツク図で
ある。
１ａ，１ｂ……光源、２……プラテンガラス、
３……原稿、４……結像光学系、５……イメージ
センサ、６……白色プラテンローラ、７……光量
センサ、９……穴、１０，１５……ＡＤ変換器、
１１……不揮発性メモリ、１２……中央処理装置
、１３……ランプコントローラ、１４……操作パ
ネル、１６，１８……ラインメモリ。
FIG. 1 is a block diagram showing one embodiment of the present invention. 1a, 1b... light source, 2... platen glass,
3... Document, 4... Imaging optical system, 5... Image sensor, 6... White platen roller, 7... Light amount sensor, 9... Hole, 10, 15... AD converter,
11...Nonvolatile memory, 12...Central processing unit, 13...Lamp controller, 14...Operation panel, 16, 18...Line memory.
Claims (1)
記画像形成面からの反射光を読み取るイメージセ
ンサとを備えた画像読取り装置において、 前記光源の発光光量を検出する光量センサと、 適正読取り状態において前記光量センサで検出
した発光光量の値を記憶する不揮発性メモリと、 原稿画像の読取り中における光源の発光光量を
前記光量センサで検出し、この検出した発光光量
が前記不揮発性メモリに記憶された値の許容範囲
になるように前記光源の発光光量を制御する光源
制御手段と を備える画像読取り装置。[Claims for Utility Model Registration] An image reading device comprising a light source that provides illumination light to an image forming surface of a document, and an image sensor that reads reflected light from the image forming surface, which detects the amount of light emitted from the light source. a light amount sensor; a non-volatile memory that stores a value of the amount of emitted light detected by the light amount sensor in a proper reading state; and a light source control means for controlling the amount of light emitted from the light source so that the amount of light emitted from the light source falls within an allowable range of the value stored in the nonvolatile memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989056322U JPH0724851Y2 (en) | 1989-05-16 | 1989-05-16 | Image reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989056322U JPH0724851Y2 (en) | 1989-05-16 | 1989-05-16 | Image reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02147965U true JPH02147965U (en) | 1990-12-17 |
| JPH0724851Y2 JPH0724851Y2 (en) | 1995-06-05 |
Family
ID=31580041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989056322U Expired - Lifetime JPH0724851Y2 (en) | 1989-05-16 | 1989-05-16 | Image reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724851Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07219088A (en) * | 1994-01-31 | 1995-08-18 | Hitachi Cable Ltd | X-ray film inspection device and power cable X-ray inspection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268362A (en) * | 1985-09-20 | 1987-03-28 | Fuji Xerox Co Ltd | Light source device using fluorescent tube |
| JPS62279777A (en) * | 1986-05-28 | 1987-12-04 | Nec Corp | Facsimile equipment |
-
1989
- 1989-05-16 JP JP1989056322U patent/JPH0724851Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6268362A (en) * | 1985-09-20 | 1987-03-28 | Fuji Xerox Co Ltd | Light source device using fluorescent tube |
| JPS62279777A (en) * | 1986-05-28 | 1987-12-04 | Nec Corp | Facsimile equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07219088A (en) * | 1994-01-31 | 1995-08-18 | Hitachi Cable Ltd | X-ray film inspection device and power cable X-ray inspection method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724851Y2 (en) | 1995-06-05 |