JPS5652742A - Optical device of copying machine - Google Patents
Optical device of copying machineInfo
- Publication number
- JPS5652742A JPS5652742A JP388376A JP388376A JPS5652742A JP S5652742 A JPS5652742 A JP S5652742A JP 388376 A JP388376 A JP 388376A JP 388376 A JP388376 A JP 388376A JP S5652742 A JPS5652742 A JP S5652742A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- optical axis
- original
- variable power
- side end
- 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
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
PURPOSE: To make possible the side end registering of an original on the original platen surface by so constituting the devide that the lens is moved not only in its optical axis direction but also in its perpendicular direction at the variable power.
CONSTITUTION: A rail 23 is extending in a direction inclining at a certain angle to the optical axis of a lens 4 within a horizontal plane. Hence, if a supporting base 22 is moved on the rail 23 for the purpose of variable power, the lens 4 parallel moves in the optical axis direction and in the direction perpendicular to the same while maintaining the direction of its optical axis. If the movement extent Δl in the direction perpendicualr to the optical axis of the lens 4 is so selected as to satisfy the formula I (where L is the distance between the optical axis position of the original and the end part, α1 is the magnification before variable power and α2 is the magnification after variable power), the inner side end of the image on the exposure plane at an exposure part 5 does not move before and after the variable power by the movement of the lens 4. If the relation of the forward side index of the original and the lens are beforehand so set that this inner side end which does not move aligns to the inner side end of the advancing region of photosensitive paper, the side end registering of the original C on the original platen surface 1 may be performed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP388376A JPS5652742A (en) | 1976-01-16 | 1976-01-16 | Optical device of copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP388376A JPS5652742A (en) | 1976-01-16 | 1976-01-16 | Optical device of copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5652742A true JPS5652742A (en) | 1981-05-12 |
Family
ID=11569570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP388376A Pending JPS5652742A (en) | 1976-01-16 | 1976-01-16 | Optical device of copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5652742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59140438A (en) * | 1982-09-21 | 1984-08-11 | ゼロツクス・コ−ポレ−シヨン | Multiplex magnification mode type copying equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1482785A (en) * | 1965-06-11 | 1967-05-26 | Scm Corp | Electrostatic printing machine |
| JPS5112105U (en) * | 1974-07-12 | 1976-01-29 |
-
1976
- 1976-01-16 JP JP388376A patent/JPS5652742A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1482785A (en) * | 1965-06-11 | 1967-05-26 | Scm Corp | Electrostatic printing machine |
| JPS5112105U (en) * | 1974-07-12 | 1976-01-29 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59140438A (en) * | 1982-09-21 | 1984-08-11 | ゼロツクス・コ−ポレ−シヨン | Multiplex magnification mode type copying equipment |
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