JPH0326591B2 - - Google Patents
Info
- Publication number
- JPH0326591B2 JPH0326591B2 JP58152296A JP15229683A JPH0326591B2 JP H0326591 B2 JPH0326591 B2 JP H0326591B2 JP 58152296 A JP58152296 A JP 58152296A JP 15229683 A JP15229683 A JP 15229683A JP H0326591 B2 JPH0326591 B2 JP H0326591B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- image
- level
- display surface
- light amount
- 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 - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Character Input (AREA)
- Image Input (AREA)
- Facsimile Scanning Arrangements (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58152296A JPS6043962A (ja) | 1983-08-20 | 1983-08-20 | イメージリーダの光量低下検出方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58152296A JPS6043962A (ja) | 1983-08-20 | 1983-08-20 | イメージリーダの光量低下検出方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6043962A JPS6043962A (ja) | 1985-03-08 |
JPH0326591B2 true JPH0326591B2 (da) | 1991-04-11 |
Family
ID=15537421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58152296A Granted JPS6043962A (ja) | 1983-08-20 | 1983-08-20 | イメージリーダの光量低下検出方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6043962A (da) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61221884A (ja) * | 1985-03-14 | 1986-10-02 | Fujitsu Ltd | 画像読取り装置 |
JPH0722314B2 (ja) * | 1985-11-13 | 1995-03-08 | 株式会社リコー | 原稿照明用光源の劣化検出方式 |
JPH01300670A (ja) * | 1988-05-28 | 1989-12-05 | Fuji Xerox Co Ltd | 読取装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171877A (en) * | 1981-04-16 | 1982-10-22 | Canon Inc | Detecting device for degradation of light source in facsimile device |
-
1983
- 1983-08-20 JP JP58152296A patent/JPS6043962A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57171877A (en) * | 1981-04-16 | 1982-10-22 | Canon Inc | Detecting device for degradation of light source in facsimile device |
Also Published As
Publication number | Publication date |
---|---|
JPS6043962A (ja) | 1985-03-08 |
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