JPS56155957A - Stopping method of optical device of copying machine - Google Patents
Stopping method of optical device of copying machineInfo
- Publication number
- JPS56155957A JPS56155957A JP5961180A JP5961180A JPS56155957A JP S56155957 A JPS56155957 A JP S56155957A JP 5961180 A JP5961180 A JP 5961180A JP 5961180 A JP5961180 A JP 5961180A JP S56155957 A JPS56155957 A JP S56155957A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- motion
- reciprocation
- bevel
- stopping
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
PURPOSE:To stop a mirror at a constant position and to start its reciprocation smoothly by stopping it with an elastic plate provided to a bracket and by increasing braking force for the return motion of the mirror above that for the going motion. CONSTITUTION:On guide rod 3, the 1st and 2nd mirror brackets 6 and 5 are supported freely slidably. The 1st mirror 7 and 2nd mirror 10 are fixed to brackets 6 and 5 respectively and, after scanned as shown by arrow A, returns to their original positions. Atop of brack 5, member 11 contacting with a curved elastic plate is fitted and at the stop position, stopping member 12 provided with bevel 12a is arranged. Bevel 12a is formed unevenly so that the braking force will be greater in the return motion of bracket 5 than in the going motion. Consequently, since said braking is not caused by repulsion, the mirrors are stopped at nearly constant positions and their reciprocation is started smoothly.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5961180A JPS56155957A (en) | 1980-05-06 | 1980-05-06 | Stopping method of optical device of copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5961180A JPS56155957A (en) | 1980-05-06 | 1980-05-06 | Stopping method of optical device of copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56155957A true JPS56155957A (en) | 1981-12-02 |
Family
ID=13118210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5961180A Pending JPS56155957A (en) | 1980-05-06 | 1980-05-06 | Stopping method of optical device of copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56155957A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0493853U (en) * | 1990-12-29 | 1992-08-14 |
-
1980
- 1980-05-06 JP JP5961180A patent/JPS56155957A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0493853U (en) * | 1990-12-29 | 1992-08-14 |
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