JPS5466833A - Variable power optical device of copying machines and others - Google Patents
Variable power optical device of copying machines and othersInfo
- Publication number
- JPS5466833A JPS5466833A JP13373377A JP13373377A JPS5466833A JP S5466833 A JPS5466833 A JP S5466833A JP 13373377 A JP13373377 A JP 13373377A JP 13373377 A JP13373377 A JP 13373377A JP S5466833 A JPS5466833 A JP S5466833A
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- original
- lens
- optical device
- variable power
- 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 achieve the simplification of movement of the optical system and the miniaturization of the device by providing a second mirror aside from a first mirror which is integral with a lens.
CONSTITUTION: A second mirror 3 which is inclined at an angle to the original 01, 02 plane is disposed for the first miror 2 of 45° which is integral with a lens 1 consisting of a front group and rear group of optical axes intersecting at 90° and is disposed at the point of intersection of the optical axes. Then, the lens mirror 1, first mirror 2 and second mirror 3 scan U-V-W at the equal magnification thereby exposing the original 01, 02 to the photosensitive surface of a photoreceptor 4 and scan X-Y=Z at the reduction. Since the mirrors 2, 3 can be of a small size and the optical system is required to be moved only in the optical axis direction on the original 01, 02 side and image side optical axis direction, their operations become simpler, the device smaller and simpler.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13373377A JPS5466833A (en) | 1977-11-08 | 1977-11-08 | Variable power optical device of copying machines and others |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13373377A JPS5466833A (en) | 1977-11-08 | 1977-11-08 | Variable power optical device of copying machines and others |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5466833A true JPS5466833A (en) | 1979-05-29 |
Family
ID=15111633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13373377A Pending JPS5466833A (en) | 1977-11-08 | 1977-11-08 | Variable power optical device of copying machines and others |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5466833A (en) |
-
1977
- 1977-11-08 JP JP13373377A patent/JPS5466833A/en active Pending
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