JPS5387723A - Lens shift device with focus posiion correcting mechanism - Google Patents
Lens shift device with focus posiion correcting mechanismInfo
- Publication number
- JPS5387723A JPS5387723A JP215577A JP215577A JPS5387723A JP S5387723 A JPS5387723 A JP S5387723A JP 215577 A JP215577 A JP 215577A JP 215577 A JP215577 A JP 215577A JP S5387723 A JPS5387723 A JP S5387723A
- Authority
- JP
- Japan
- Prior art keywords
- focus
- posiion
- shift device
- correcting mechanism
- lens shift
- 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
- Mounting And Adjusting Of Optical Elements (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
PURPOSE: To maintain the focus to be constant over the whole range of zooming by shifting the holding mount of a partical lens of the lens system with a helical cam.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP215577A JPS5387723A (en) | 1977-01-12 | 1977-01-12 | Lens shift device with focus posiion correcting mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP215577A JPS5387723A (en) | 1977-01-12 | 1977-01-12 | Lens shift device with focus posiion correcting mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5387723A true JPS5387723A (en) | 1978-08-02 |
Family
ID=11521451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP215577A Pending JPS5387723A (en) | 1977-01-12 | 1977-01-12 | Lens shift device with focus posiion correcting mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5387723A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57150844U (en) * | 1981-03-16 | 1982-09-21 | ||
JPS57150841U (en) * | 1981-03-14 | 1982-09-21 | ||
JPS57173861A (en) * | 1981-04-21 | 1982-10-26 | Fuji Xerox Co Ltd | Lens moving device of copier |
JPS5817463A (en) * | 1981-07-24 | 1983-02-01 | Asahi Optical Co Ltd | 2 stage variable magnification device of copying machine |
JPS5882274A (en) * | 1981-11-11 | 1983-05-17 | Canon Inc | Variable magnification forming device |
JPS58144852A (en) * | 1982-02-22 | 1983-08-29 | Toshiba Corp | Transfer device of optical system |
JPS59168709U (en) * | 1983-04-26 | 1984-11-12 | 株式会社ニコン | Lens barrel that can be attached to bellows |
JPS6096656U (en) * | 1983-12-09 | 1985-07-01 | 株式会社リコー | Copying machine lens aperture drive device |
JPS60260935A (en) * | 1984-06-07 | 1985-12-24 | Minolta Camera Co Ltd | Variable power mechanism of copying machine |
JPS6153746U (en) * | 1984-09-14 | 1986-04-11 | ||
JPH02230134A (en) * | 1989-03-02 | 1990-09-12 | Konica Corp | Variable power device for copying machine |
-
1977
- 1977-01-12 JP JP215577A patent/JPS5387723A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57150841U (en) * | 1981-03-14 | 1982-09-21 | ||
JPS57150844U (en) * | 1981-03-16 | 1982-09-21 | ||
JPS57173861A (en) * | 1981-04-21 | 1982-10-26 | Fuji Xerox Co Ltd | Lens moving device of copier |
JPS5817463A (en) * | 1981-07-24 | 1983-02-01 | Asahi Optical Co Ltd | 2 stage variable magnification device of copying machine |
JPS6227700B2 (en) * | 1981-07-24 | 1987-06-16 | Asahi Optical Co Ltd | |
JPS5882274A (en) * | 1981-11-11 | 1983-05-17 | Canon Inc | Variable magnification forming device |
JPS58144852A (en) * | 1982-02-22 | 1983-08-29 | Toshiba Corp | Transfer device of optical system |
JPS59168709U (en) * | 1983-04-26 | 1984-11-12 | 株式会社ニコン | Lens barrel that can be attached to bellows |
JPS6096656U (en) * | 1983-12-09 | 1985-07-01 | 株式会社リコー | Copying machine lens aperture drive device |
JPS60260935A (en) * | 1984-06-07 | 1985-12-24 | Minolta Camera Co Ltd | Variable power mechanism of copying machine |
JPS6153746U (en) * | 1984-09-14 | 1986-04-11 | ||
JPH02230134A (en) * | 1989-03-02 | 1990-09-12 | Konica Corp | Variable power device for copying machine |
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