DE2803180C2 - - Google Patents
Info
- Publication number
- DE2803180C2 DE2803180C2 DE2803180A DE2803180A DE2803180C2 DE 2803180 C2 DE2803180 C2 DE 2803180C2 DE 2803180 A DE2803180 A DE 2803180A DE 2803180 A DE2803180 A DE 2803180A DE 2803180 C2 DE2803180 C2 DE 2803180C2
- Authority
- DE
- Germany
- Prior art keywords
- original
- lens
- reflector
- imaging
- width
- 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
Links
Classifications
-
- 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
- G03G15/041—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 variable magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Control Or Security For Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP634677A JPS5392126A (en) | 1977-01-25 | 1977-01-25 | Exposure regulator for variable magnification copying machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2803180A1 DE2803180A1 (de) | 1978-07-27 |
DE2803180C2 true DE2803180C2 (US07714131-20100511-C00024.png) | 1987-06-04 |
Family
ID=11635805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782803180 Granted DE2803180A1 (de) | 1977-01-25 | 1978-01-25 | Abbildungseinrichtung fuer ein kopiergeraet mit einer veraenderlichen kopiegroesse |
Country Status (4)
Country | Link |
---|---|
US (1) | US4171904A (US07714131-20100511-C00024.png) |
JP (1) | JPS5392126A (US07714131-20100511-C00024.png) |
DE (1) | DE2803180A1 (US07714131-20100511-C00024.png) |
GB (1) | GB1599134A (US07714131-20100511-C00024.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915024A1 (de) * | 1988-05-07 | 1989-11-16 | Fuji Xerox Co Ltd | Informationen speichernde vorrichtung und verfahren zum systematischen entwurf einer derartigen vorrichtung |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55126263A (en) * | 1979-03-23 | 1980-09-29 | Canon Inc | Variable magnification optical device |
US4260249A (en) * | 1979-09-17 | 1981-04-07 | International Business Machines | Two slit illumination aperture |
JPS57198474A (en) * | 1981-06-01 | 1982-12-06 | Canon Inc | Adjusting device for exposure |
JPS58214144A (ja) * | 1982-06-08 | 1983-12-13 | Canon Inc | 変倍式複写機の原稿濃度検出装置 |
JPS5964810A (ja) * | 1982-10-05 | 1984-04-12 | Canon Inc | 変倍投影装置 |
JPS5977433A (ja) * | 1982-10-26 | 1984-05-02 | Dainippon Screen Mfg Co Ltd | 複写カメラ |
JPS59200227A (ja) * | 1983-04-27 | 1984-11-13 | Fuji Photo Film Co Ltd | レンズ選択時における露光量補正方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3476478A (en) * | 1967-01-03 | 1969-11-04 | Xerox Corp | Apparatus for changing the magnification of a photocopier without changing the conjugate length of the optical system |
DE2039336A1 (de) * | 1969-08-13 | 1971-02-25 | Minolta Camera Kk | Vorrichtung zur Einstellung der Belichtungsmenge in einem Kopiergeraet |
JPS541178B1 (US07714131-20100511-C00024.png) * | 1970-11-06 | 1979-01-22 | ||
JPS4918539U (US07714131-20100511-C00024.png) * | 1972-05-19 | 1974-02-16 | ||
JPS5010124A (US07714131-20100511-C00024.png) * | 1973-05-24 | 1975-02-01 | ||
US3917393A (en) * | 1973-09-21 | 1975-11-04 | Rank Xerox Ltd | Varioslit |
NL168342C (nl) * | 1974-06-28 | 1982-03-16 | Oce Van Der Grinten Nv | Reproductie-inrichting |
JPS6014345B2 (ja) * | 1974-12-25 | 1985-04-12 | 株式会社リコー | 電子複写機における変倍スリツト露光方法 |
US4084897A (en) * | 1976-12-27 | 1978-04-18 | International Business Machines Corporation | Half-lens/mirror copier providing original-to-copy image reduction |
-
1977
- 1977-01-25 JP JP634677A patent/JPS5392126A/ja active Granted
-
1978
- 1978-01-19 GB GB2135/78A patent/GB1599134A/en not_active Expired
- 1978-01-23 US US05/871,250 patent/US4171904A/en not_active Expired - Lifetime
- 1978-01-25 DE DE19782803180 patent/DE2803180A1/de active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915024A1 (de) * | 1988-05-07 | 1989-11-16 | Fuji Xerox Co Ltd | Informationen speichernde vorrichtung und verfahren zum systematischen entwurf einer derartigen vorrichtung |
Also Published As
Publication number | Publication date |
---|---|
JPS6339887B2 (US07714131-20100511-C00024.png) | 1988-08-08 |
US4171904A (en) | 1979-10-23 |
JPS5392126A (en) | 1978-08-12 |
DE2803180A1 (de) | 1978-07-27 |
GB1599134A (en) | 1981-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8125 | Change of the main classification |
Ipc: G03B 27/72 |
|
8128 | New person/name/address of the agent |
Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM. |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition |