JPS5454648A - Magnification changing method of projecting optical system - Google Patents
Magnification changing method of projecting optical systemInfo
- Publication number
- JPS5454648A JPS5454648A JP12210777A JP12210777A JPS5454648A JP S5454648 A JPS5454648 A JP S5454648A JP 12210777 A JP12210777 A JP 12210777A JP 12210777 A JP12210777 A JP 12210777A JP S5454648 A JPS5454648 A JP S5454648A
- Authority
- JP
- Japan
- Prior art keywords
- magnification
- lens
- formula
- optical system
- changing method
- 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.)
- Granted
Links
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Lenses (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12210777A JPS5832687B2 (ja) | 1977-10-11 | 1977-10-11 | 投影光学系の変倍方法 |
US05/946,831 US4243312A (en) | 1977-10-11 | 1978-09-28 | Electrophotographic copying apparatus |
DE2844166A DE2844166A1 (de) | 1977-10-11 | 1978-10-10 | Elektrophotographische kopieranlage mit veraenderlicher vergroesserungseinrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12210777A JPS5832687B2 (ja) | 1977-10-11 | 1977-10-11 | 投影光学系の変倍方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5454648A true JPS5454648A (en) | 1979-05-01 |
JPS5832687B2 JPS5832687B2 (ja) | 1983-07-14 |
Family
ID=14827804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12210777A Expired JPS5832687B2 (ja) | 1977-10-11 | 1977-10-11 | 投影光学系の変倍方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5832687B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133038U (ja) * | 1984-07-28 | 1986-02-28 | 株式会社トプコン | 複写機用光学ユニツト |
-
1977
- 1977-10-11 JP JP12210777A patent/JPS5832687B2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6133038U (ja) * | 1984-07-28 | 1986-02-28 | 株式会社トプコン | 複写機用光学ユニツト |
JPH0453637Y2 (ja) * | 1984-07-28 | 1992-12-16 |
Also Published As
Publication number | Publication date |
---|---|
JPS5832687B2 (ja) | 1983-07-14 |
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