JPS5723971A - Mechanism for variable power - Google Patents
Mechanism for variable powerInfo
- Publication number
- JPS5723971A JPS5723971A JP9762080A JP9762080A JPS5723971A JP S5723971 A JPS5723971 A JP S5723971A JP 9762080 A JP9762080 A JP 9762080A JP 9762080 A JP9762080 A JP 9762080A JP S5723971 A JPS5723971 A JP S5723971A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- lens
- variable power
- angle
- mirror lens
- 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
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)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Lenses (AREA)
Abstract
PURPOSE:To enable variable power simply, by moving an in-mirror lens in parallel with an optical path so that the radiated angle from the 2nd mirror to the in-miller lens can be changed in moving the 2nd mirror and the in-mirror lens at variable power. CONSTITUTION:An original image is projected on a photoreceptor 1 via the 1st mirror 2, the 2nd mirror 2', an in-mirror lens 1, and the 4th mirror 6. Thus, to achive variable power, the 2nd mirror 2' is moved to the P-P' position and the in-mirror lens 1 is to the Q-Q' position respectively to change the radiation angle from the 2nd mirror 2' to the in-mirror lens 1, from angle theta1 to theta2(theta1 theta2). In this case, the in-mirror lens 1 is moved in parallel with the optical axis and the variable power can be made without any complicated operation and components, through the movement of the 2nd mirror 2' and the in-mirror lens 1 only.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9762080A JPS5723971A (en) | 1980-07-18 | 1980-07-18 | Mechanism for variable power |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9762080A JPS5723971A (en) | 1980-07-18 | 1980-07-18 | Mechanism for variable power |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5723971A true JPS5723971A (en) | 1982-02-08 |
Family
ID=14197239
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9762080A Pending JPS5723971A (en) | 1980-07-18 | 1980-07-18 | Mechanism for variable power |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5723971A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076563A (en) * | 1989-05-16 | 1991-12-31 | Sharp Kabushiki Kaisha | Apparatus for controlling a sheet supplying device |
-
1980
- 1980-07-18 JP JP9762080A patent/JPS5723971A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5076563A (en) * | 1989-05-16 | 1991-12-31 | Sharp Kabushiki Kaisha | Apparatus for controlling a sheet supplying device |
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