JPS4821842Y1 - - Google Patents
Info
- Publication number
- JPS4821842Y1 JPS4821842Y1 JP1969042382U JP4238269U JPS4821842Y1 JP S4821842 Y1 JPS4821842 Y1 JP S4821842Y1 JP 1969042382 U JP1969042382 U JP 1969042382U JP 4238269 U JP4238269 U JP 4238269U JP S4821842 Y1 JPS4821842 Y1 JP S4821842Y1
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/522—Projection optics
- G03B27/525—Projection optics for slit exposure
- G03B27/526—Projection optics for slit exposure in which the projection optics move
- G03B27/527—Projection optics for slit exposure in which the projection optics move as a whole in a translatory movement
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
- G03G15/0435—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Projection-Type Copiers In General (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1969042382U JPS4821842Y1 (ja) | 1969-05-10 | 1969-05-10 | |
US35477A US3640622A (en) | 1969-05-10 | 1970-05-07 | Exposure-control device in copying machines |
GB1266286D GB1266286A (ja) | 1969-05-10 | 1970-05-08 | |
DE2022808A DE2022808B2 (de) | 1969-05-10 | 1970-05-09 | Vorrichtung zum Steuern der Belichtung bei Kopiermaschinen od.dgl |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1969042382U JPS4821842Y1 (ja) | 1969-05-10 | 1969-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4821842Y1 true JPS4821842Y1 (ja) | 1973-06-26 |
Family
ID=12634494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1969042382U Expired JPS4821842Y1 (ja) | 1969-05-10 | 1969-05-10 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3640622A (ja) |
JP (1) | JPS4821842Y1 (ja) |
DE (1) | DE2022808B2 (ja) |
GB (1) | GB1266286A (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1434102A (en) * | 1972-07-20 | 1976-05-05 | Mita Industrial Co Ltd | Electrophotographic copying machine |
DE2528925A1 (de) * | 1975-06-28 | 1977-01-13 | Agfa Gevaert Ag | Fotokopiergeraet |
JPS5922932B2 (ja) * | 1977-01-24 | 1984-05-30 | 株式会社リコー | 変倍複写機における照度むら補正装置 |
JPS5836889B2 (ja) * | 1978-04-15 | 1983-08-12 | ミノルタ株式会社 | 走査露光型変倍複写機 |
JPS6187125A (ja) * | 1984-09-20 | 1986-05-02 | Canon Inc | スリツト露光投影装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124996A (en) * | 1964-03-17 | Portable micro | ||
DE1597276B1 (de) * | 1966-10-04 | 1970-05-06 | Ricoh Kk | Belichtungswert-Verstelleinrichtung fuer Vervielfaeltigungsgeraete |
-
1969
- 1969-05-10 JP JP1969042382U patent/JPS4821842Y1/ja not_active Expired
-
1970
- 1970-05-07 US US35477A patent/US3640622A/en not_active Expired - Lifetime
- 1970-05-08 GB GB1266286D patent/GB1266286A/en not_active Expired
- 1970-05-09 DE DE2022808A patent/DE2022808B2/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2022808B2 (de) | 1974-12-05 |
DE2022808C3 (ja) | 1975-08-21 |
US3640622A (en) | 1972-02-08 |
GB1266286A (ja) | 1972-03-08 |
DE2022808A1 (de) | 1970-11-19 |