JPS5687011A - Variable magnification optical device - Google Patents
Variable magnification optical deviceInfo
- Publication number
- JPS5687011A JPS5687011A JP16434579A JP16434579A JPS5687011A JP S5687011 A JPS5687011 A JP S5687011A JP 16434579 A JP16434579 A JP 16434579A JP 16434579 A JP16434579 A JP 16434579A JP S5687011 A JPS5687011 A JP S5687011A
- Authority
- JP
- Japan
- Prior art keywords
- copying
- mirror
- base
- unmagnification
- platens
- 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
- Lenses (AREA)
Abstract
PURPOSE: To enable the reduction copying- and magnification copying systems which are mutually in a reciprocal relation, other than unmagnification copying, to be set easily and accurately by the simple constitution of moving in parallel the two base platens each mounted with an in-mirror lens and a reflection surface in one body.
CONSTITUTION: At the unmagnification copying shown in fig. A, the light from an original 1 is reflected by a mirror M5, and the mirror M6b on a base plate 4, and enters the in-mirror lens L2 of a base platen 5 where it is reflected by its mirror surface. This light is imaged from the mirror M6a on the base platen 4 to a photosensitive drum 3. At the magnification copying shown in fig. B, the base platens 4, 5 move in an upward direction perpendicularly to the optical axes of the in-mirror lenses L1, L2 so as to approach to the original surface respectively from the state at the unmagnification copying. Further at the reduction copying in a reciprocal relation, the base platens 4, 5 move in a downward direction perpendicularly to the optical axes of the in-mirror lenses L1, L2 respectively from the positions at the unmagnification copying, and the copying is thus accomplished.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16434579A JPS5687011A (en) | 1979-12-18 | 1979-12-18 | Variable magnification optical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16434579A JPS5687011A (en) | 1979-12-18 | 1979-12-18 | Variable magnification optical device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5687011A true JPS5687011A (en) | 1981-07-15 |
Family
ID=15791397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16434579A Pending JPS5687011A (en) | 1979-12-18 | 1979-12-18 | Variable magnification optical device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5687011A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02198407A (en) * | 1988-10-17 | 1990-08-06 | Hughes Aircraft Co | Continuously variable focus total reflection optical apparatus |
-
1979
- 1979-12-18 JP JP16434579A patent/JPS5687011A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02198407A (en) * | 1988-10-17 | 1990-08-06 | Hughes Aircraft Co | Continuously variable focus total reflection optical apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56133756A (en) | Optical device for variable magnification copying capable of size enlarging and reducing | |
GB1197361A (en) | Replicating Microphotographic Apparatus | |
JPS5687011A (en) | Variable magnification optical device | |
JPS52138924A (en) | Focal detector | |
JPS6410228A (en) | Copying machine | |
JPS5737342A (en) | Variable magnification copying machine | |
JPS5737326A (en) | Imaging device | |
JPS5315144A (en) | Exposure device for variable magnification type electrophotographic copier | |
JPS57197574A (en) | Copying machine | |
JPS5555364A (en) | Slit exposure optical system in electrophotographic copying machine | |
JPS56140301A (en) | Optical device | |
JPS5515119A (en) | Original checking device | |
JPS5622455A (en) | Reciprocating reader | |
JPS51144654A (en) | Microscope image input device | |
JPS5276940A (en) | Scanning optical system | |
JPS53145633A (en) | Multi-color copying apparatus for zerography | |
JPS5654462A (en) | Copying machine | |
JPS55126263A (en) | Variable magnification optical device | |
JPS57198474A (en) | Adjusting device for exposure | |
JPS529436A (en) | Image forming device with variable magnification mechanism | |
JPS55129366A (en) | Variable magnification copying apparatus | |
JPS5425728A (en) | Image projection method for copying lens | |
JPS54116920A (en) | Lens for copier | |
JPS5748753A (en) | Optical device of copying machine or the like | |
JPS5470842A (en) | Scanning exposure device for copying apparatus |