JPS5646263A - Original lighting device of electronic copying machine - Google Patents
Original lighting device of electronic copying machineInfo
- Publication number
- JPS5646263A JPS5646263A JP12197279A JP12197279A JPS5646263A JP S5646263 A JPS5646263 A JP S5646263A JP 12197279 A JP12197279 A JP 12197279A JP 12197279 A JP12197279 A JP 12197279A JP S5646263 A JPS5646263 A JP S5646263A
- Authority
- JP
- Japan
- Prior art keywords
- light
- original
- opening part
- light source
- unevenness
- 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
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
PURPOSE: To reduce the unevenness of illuminance distribution by irradiating an original surface with luminous flux from a light source in two differnt directions via two reflecting plates and by interposing a light-diffusing film in the optical path of the luminous flux.
CONSTITUTION: In refecting plate 2, light source 1 such as a miniature halogen lamp is provided. Reflecting plate 2 has light-diffusing filter 4 extended at flank opening part 3. Additionally, reflecting plate 5 is provided which focuses light from flank opening part 8 of reflecting plate 2 on the surface of original 7. Namely, the light from light source 1 is projected out in two directions from top opening part 3 and flank opening part 8 and the light from top opening part 8 is diffused by filter 4 and reaches the surface of original 7. Thus, the original is irradiated with light beams in two directions, and consequently the unevenness of illumination distribution due to the unevenness of the surface of original 7 is reduced as well as the glare of the direct light from light source 1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12197279A JPS5646263A (en) | 1979-09-25 | 1979-09-25 | Original lighting device of electronic copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12197279A JPS5646263A (en) | 1979-09-25 | 1979-09-25 | Original lighting device of electronic copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5646263A true JPS5646263A (en) | 1981-04-27 |
Family
ID=14824415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12197279A Pending JPS5646263A (en) | 1979-09-25 | 1979-09-25 | Original lighting device of electronic copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5646263A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59167096A (en) * | 1983-03-11 | 1984-09-20 | 日本電気株式会社 | Circuit board |
JPS6086265A (en) * | 1983-09-09 | 1985-05-15 | ピ−ピ−ジ−・インダストリ−ズ・インコ−ポレ−テツド | Manufacture of products made by cathode sputtering process and products thereby |
JPH0251232A (en) * | 1988-06-29 | 1990-02-21 | Philips Gloeilampenfab:Nv | Manufacture of semiconductor device |
-
1979
- 1979-09-25 JP JP12197279A patent/JPS5646263A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59167096A (en) * | 1983-03-11 | 1984-09-20 | 日本電気株式会社 | Circuit board |
JPH0241192B2 (en) * | 1983-03-11 | 1990-09-14 | Nippon Electric Co | |
JPS6086265A (en) * | 1983-09-09 | 1985-05-15 | ピ−ピ−ジ−・インダストリ−ズ・インコ−ポレ−テツド | Manufacture of products made by cathode sputtering process and products thereby |
JPH0251232A (en) * | 1988-06-29 | 1990-02-21 | Philips Gloeilampenfab:Nv | Manufacture of semiconductor device |
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