JPS6486665A - Picture reader - Google Patents
Picture readerInfo
- Publication number
- JPS6486665A JPS6486665A JP62242742A JP24274287A JPS6486665A JP S6486665 A JPS6486665 A JP S6486665A JP 62242742 A JP62242742 A JP 62242742A JP 24274287 A JP24274287 A JP 24274287A JP S6486665 A JPS6486665 A JP S6486665A
- Authority
- JP
- Japan
- Prior art keywords
- time
- point
- charge storage
- goes
- light emitting
- 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 Scanning Arrangements (AREA)
Abstract
PURPOSE:To remarkably reduce after-image even at high speed reading by stopping the lighting from a prescribed point of time before the end of a charge storage period of a photoelectric conversion means till the start of next electric charge storage. CONSTITUTION:When a one-shot circuit MN restores to the stable state at a point of time t4 and a base voltage TB goes to a high level, a transistor TR 2 is turned on to goes off a light emitting element LD. The extinguished state continues till the next charge transfer pulse phish descends (point of time t3). The extinguished period Td (=t3-t4) is provided to reduce the after-image remarkably and to extend the service life of, the light emitting element LD. The minimum value of the Td is decided on the time of the charge generated at a photosensitive section at a point of time t4 required to be reached to the electric charge storage section with drifting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242742A JPS6486665A (en) | 1987-09-29 | 1987-09-29 | Picture reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62242742A JPS6486665A (en) | 1987-09-29 | 1987-09-29 | Picture reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486665A true JPS6486665A (en) | 1989-03-31 |
Family
ID=17093581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62242742A Pending JPS6486665A (en) | 1987-09-29 | 1987-09-29 | Picture reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486665A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0646206A (en) * | 1992-06-15 | 1994-02-18 | Matsushita Graphic Commun Syst Inc | Picture reader |
US11091939B2 (en) | 2016-10-25 | 2021-08-17 | Mitsui Kinzoku Act Corporation | Door lock apparatus |
-
1987
- 1987-09-29 JP JP62242742A patent/JPS6486665A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0646206A (en) * | 1992-06-15 | 1994-02-18 | Matsushita Graphic Commun Syst Inc | Picture reader |
US11091939B2 (en) | 2016-10-25 | 2021-08-17 | Mitsui Kinzoku Act Corporation | Door lock apparatus |
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