JPS5498616A - Lens barrel for zoom lens - Google Patents
Lens barrel for zoom lensInfo
- Publication number
- JPS5498616A JPS5498616A JP15717878A JP15717878A JPS5498616A JP S5498616 A JPS5498616 A JP S5498616A JP 15717878 A JP15717878 A JP 15717878A JP 15717878 A JP15717878 A JP 15717878A JP S5498616 A JPS5498616 A JP S5498616A
- Authority
- JP
- Japan
- Prior art keywords
- zoom
- lens barrel
- cam groove
- supporting
- stationary lens
- 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
Abstract
PURPOSE: To smooth the movement of moving lens groups for zoom, by slidably fitting the supporting frame of moving lens group for zoom to the inner and outer sides of a stationary lens barrel.
CONSTITUTION: A supporting sleeve 4 is slidably fitted to the outside of a stationary lens barrel 1 mounted on a camera, and the arm thereof is projected into the stationary lens barrel 1 through a cam groove 12 which penetrates through the stationary lens barrel 1, thereby securing a first moving lens group for zoom Z1. At the same time, a supporting ring 9 to which is secured a second moving lens group for zoom Z2 is slidably fitted to the inside of the stationary lens barrel 1. In this setting, when an operating ring 3 is moved back and forth, the supporting sleeve 4 rotates along the cam groove 12 through balls 5, and the supporting ring 9 also turns along the cam groove 14 through the engagement of the cam groove 13 and pin 10. Thus, without risk of collision of the supporting sleeve 4 and the supporting ring 9, the variable power may be possible in a wide range.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15717878A JPS5498616A (en) | 1978-12-18 | 1978-12-18 | Lens barrel for zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15717878A JPS5498616A (en) | 1978-12-18 | 1978-12-18 | Lens barrel for zoom lens |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP241972A Division JPS5429888B2 (en) | 1971-12-31 | 1971-12-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5498616A true JPS5498616A (en) | 1979-08-03 |
JPS5629242B2 JPS5629242B2 (en) | 1981-07-07 |
Family
ID=15643882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15717878A Granted JPS5498616A (en) | 1978-12-18 | 1978-12-18 | Lens barrel for zoom lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5498616A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4340280A (en) * | 1979-03-24 | 1982-07-20 | Canon Kabushiki Kaisha | Drive connection mechanism for adjustable lens system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04116647U (en) * | 1991-03-28 | 1992-10-19 | 財団法人石油産業活性化センター | Oil-cooled engine cylinder liner seal device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4121315Y1 (en) * | 1965-07-09 | 1966-10-19 |
-
1978
- 1978-12-18 JP JP15717878A patent/JPS5498616A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4121315Y1 (en) * | 1965-07-09 | 1966-10-19 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4340280A (en) * | 1979-03-24 | 1982-07-20 | Canon Kabushiki Kaisha | Drive connection mechanism for adjustable lens system |
Also Published As
Publication number | Publication date |
---|---|
JPS5629242B2 (en) | 1981-07-07 |
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