JPS5511212A - Magnification display device in zoom lens - Google Patents
Magnification display device in zoom lensInfo
- Publication number
- JPS5511212A JPS5511212A JP8369778A JP8369778A JPS5511212A JP S5511212 A JPS5511212 A JP S5511212A JP 8369778 A JP8369778 A JP 8369778A JP 8369778 A JP8369778 A JP 8369778A JP S5511212 A JPS5511212 A JP S5511212A
- Authority
- JP
- Japan
- Prior art keywords
- index
- magnifications
- scale
- magnification
- ring
- 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 enable magnifications to be readily recognized at the closeup photographing by forming a magnification scale to one of an inner barrel or operating ring and providing an index corresponding to this scale to the other.
CONSTITUTION: An index 8 is provided on the scale ring 5 formed integrally with an operating ring 3 and an index line 8a extending in the radial direction from the index 8 is provided at the end face 5a of the ring 5. Magnification scales 9 are respectively formed in correspondence to the index 8 and index line 8a on the outside surface of an inner barrel 2. The scales 9 are obtained through calculation from the lens focal lengths determined by zooming operation and the lens extension quantities determined through focusing operation and are formed by the plural graduation lines indicating equal magnifications. Hence, by reading the correspondence relation of the index 8 or index line 8a and magnification scales 9, the magnifications may be readily recognized in the case of performing closeup photographing with the zoom lens.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8369778A JPS5511212A (en) | 1978-07-10 | 1978-07-10 | Magnification display device in zoom lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8369778A JPS5511212A (en) | 1978-07-10 | 1978-07-10 | Magnification display device in zoom lens |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5511212A true JPS5511212A (en) | 1980-01-26 |
JPS6228450B2 JPS6228450B2 (en) | 1987-06-20 |
Family
ID=13809679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8369778A Granted JPS5511212A (en) | 1978-07-10 | 1978-07-10 | Magnification display device in zoom lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5511212A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821106U (en) * | 1981-07-31 | 1983-02-09 | 株式会社ニコン | Binocular hood display device |
-
1978
- 1978-07-10 JP JP8369778A patent/JPS5511212A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821106U (en) * | 1981-07-31 | 1983-02-09 | 株式会社ニコン | Binocular hood display device |
JPS622572Y2 (en) * | 1981-07-31 | 1987-01-21 |
Also Published As
Publication number | Publication date |
---|---|
JPS6228450B2 (en) | 1987-06-20 |
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