JPS5570168A - Light source for facsimile - Google Patents
Light source for facsimileInfo
- Publication number
- JPS5570168A JPS5570168A JP14466678A JP14466678A JPS5570168A JP S5570168 A JPS5570168 A JP S5570168A JP 14466678 A JP14466678 A JP 14466678A JP 14466678 A JP14466678 A JP 14466678A JP S5570168 A JPS5570168 A JP S5570168A
- Authority
- JP
- Japan
- Prior art keywords
- luminous quantity
- luminous
- scanning direction
- properties
- facsimile
- 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 give an easy correction to the unevenness in the main scanning direction with a simple constitution by using the luminous substance in which the luminous elements capable of controlling each luminous quantity for the light source which illuminates the transmission original of the plane scanning facsimile.
CONSTITUTION: The n-units of light emitting diodes L1∼Ln are arranged in a row in parallel to the reading part and along the main scanning direction. The luminous quantity of these light emitting diodes are controlled by the value of resistances R1∼Rn to give the overall evenness to the luminous quantity. When the luminous quantity properties due to the position of the scanning direction features like (a) in case the image formation is given to the photo detector at the original reading part through a unit of lens and with the above diode group used as the light sources, the luminous quantity of diodes L1∼Ln are controlled to properties (b). As a result, even properties (c) can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14466678A JPS5570168A (en) | 1978-11-22 | 1978-11-22 | Light source for facsimile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14466678A JPS5570168A (en) | 1978-11-22 | 1978-11-22 | Light source for facsimile |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5570168A true JPS5570168A (en) | 1980-05-27 |
Family
ID=15367396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14466678A Pending JPS5570168A (en) | 1978-11-22 | 1978-11-22 | Light source for facsimile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5570168A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587363U (en) * | 1981-07-06 | 1983-01-18 | 日本電信電話株式会社 | Photoelectric reading light source device |
JPS5924383A (en) * | 1982-07-29 | 1984-02-08 | Nippon Denso Co Ltd | Optical information reader |
JPS6055158U (en) * | 1983-09-20 | 1985-04-18 | 日本精密工業株式会社 | reading device |
JPS6148982A (en) * | 1984-08-17 | 1986-03-10 | Oki Electric Ind Co Ltd | Lighting system by light emission diode |
JPS61142857A (en) * | 1984-12-17 | 1986-06-30 | Fuji Xerox Co Ltd | Original reader |
JPS61147666A (en) * | 1984-12-21 | 1986-07-05 | Toshiba Corp | Optical image reader |
JPS6258959U (en) * | 1985-09-30 | 1987-04-11 | ||
JPS62196460U (en) * | 1986-06-03 | 1987-12-14 | ||
US4818847A (en) * | 1982-07-29 | 1989-04-04 | Nippondenso Co., Ltd. | Apparatus for optically reading printed information |
JPH01146460A (en) * | 1987-12-02 | 1989-06-08 | Sharp Corp | Picture reader |
-
1978
- 1978-11-22 JP JP14466678A patent/JPS5570168A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS587363U (en) * | 1981-07-06 | 1983-01-18 | 日本電信電話株式会社 | Photoelectric reading light source device |
JPS6234468Y2 (en) * | 1981-07-06 | 1987-09-02 | ||
JPS5924383A (en) * | 1982-07-29 | 1984-02-08 | Nippon Denso Co Ltd | Optical information reader |
JPS6217270B2 (en) * | 1982-07-29 | 1987-04-16 | Nippon Denso Co | |
US4818847A (en) * | 1982-07-29 | 1989-04-04 | Nippondenso Co., Ltd. | Apparatus for optically reading printed information |
JPS6055158U (en) * | 1983-09-20 | 1985-04-18 | 日本精密工業株式会社 | reading device |
JPS6148982A (en) * | 1984-08-17 | 1986-03-10 | Oki Electric Ind Co Ltd | Lighting system by light emission diode |
JPS61142857A (en) * | 1984-12-17 | 1986-06-30 | Fuji Xerox Co Ltd | Original reader |
JPS61147666A (en) * | 1984-12-21 | 1986-07-05 | Toshiba Corp | Optical image reader |
JPS6258959U (en) * | 1985-09-30 | 1987-04-11 | ||
JPS62196460U (en) * | 1986-06-03 | 1987-12-14 | ||
JPH01146460A (en) * | 1987-12-02 | 1989-06-08 | Sharp Corp | Picture reader |
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