JPS5348728A - Zoom lens - Google Patents
Zoom lensInfo
- Publication number
- JPS5348728A JPS5348728A JP12372676A JP12372676A JPS5348728A JP S5348728 A JPS5348728 A JP S5348728A JP 12372676 A JP12372676 A JP 12372676A JP 12372676 A JP12372676 A JP 12372676A JP S5348728 A JPS5348728 A JP S5348728A
- Authority
- JP
- Japan
- Prior art keywords
- zoom lens
- zoom
- zooming
- telephoto
- determing
- 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
- Lens Barrels (AREA)
- Diaphragms For Cameras (AREA)
Abstract
PURPOSE: Zoom operation amount and zoom movement amount on the telephoto side in telephoto zooming are adjusted and zooming to a zoom ratio range where F-number drops is automatically inhibited by turning an F-number-determing diaphragm ring.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12372676A JPS6037449B2 (en) | 1976-10-15 | 1976-10-15 | zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12372676A JPS6037449B2 (en) | 1976-10-15 | 1976-10-15 | zoom lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5348728A true JPS5348728A (en) | 1978-05-02 |
JPS6037449B2 JPS6037449B2 (en) | 1985-08-26 |
Family
ID=14867833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12372676A Expired JPS6037449B2 (en) | 1976-10-15 | 1976-10-15 | zoom lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6037449B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5879223A (en) * | 1981-11-05 | 1983-05-13 | Fuji Photo Optical Co Ltd | Speed control servo circuit of zoom lens |
JPS61223830A (en) * | 1985-03-29 | 1986-10-04 | Canon Inc | Zoom lens |
-
1976
- 1976-10-15 JP JP12372676A patent/JPS6037449B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5879223A (en) * | 1981-11-05 | 1983-05-13 | Fuji Photo Optical Co Ltd | Speed control servo circuit of zoom lens |
JPS6255768B2 (en) * | 1981-11-05 | 1987-11-20 | Fuji Photo Optical Co Ltd | |
JPS61223830A (en) * | 1985-03-29 | 1986-10-04 | Canon Inc | Zoom lens |
Also Published As
Publication number | Publication date |
---|---|
JPS6037449B2 (en) | 1985-08-26 |
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