JPS55144214A - Lens barrel capable of adjusting focus automatically and manually - Google Patents
Lens barrel capable of adjusting focus automatically and manuallyInfo
- Publication number
- JPS55144214A JPS55144214A JP5366379A JP5366379A JPS55144214A JP S55144214 A JPS55144214 A JP S55144214A JP 5366379 A JP5366379 A JP 5366379A JP 5366379 A JP5366379 A JP 5366379A JP S55144214 A JPS55144214 A JP S55144214A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- lens group
- group holding
- shift
- 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
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To move the lens groups largely with small driving power, by constituting so that the shift of lens group holding tube to the fixed tube may be the sum of the shift of movable tube to the fixed tube and the shift of lens holding tube to the movable tube.
CONSTITUTION: To change from manual focal adjustment to automatic focal adjustment, a focus ring 2 is adjusted to the infinite focusing position, and an automatic and manual focal adjustment selector button 10 is depressed. Then, a lock member 24 is pushed down, and the second movable tube 8 becomes rotatable, and a power switch for automatic focusing 26 is closed so that a drive lever 30 is rotated around the optical axis. Hence, the second movable tube 8 is rotated and moves in the direction of optical axis. Due to rotation of the second movable tube 8, a pair of pins 8a, 8b planted in this tube respectively push cam grooves 20a and 20b of the second lens group holding tube 30, and the second lens group holding tube 20 moves together with the first lens group holding tube 22, so that the lens groups may be moved largely with a small driving power.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5366379A JPS55144214A (en) | 1979-04-30 | 1979-04-30 | Lens barrel capable of adjusting focus automatically and manually |
US06/097,236 US4272174A (en) | 1978-11-25 | 1979-11-26 | Automatic and manual focus control lens barrel structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5366379A JPS55144214A (en) | 1979-04-30 | 1979-04-30 | Lens barrel capable of adjusting focus automatically and manually |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55144214A true JPS55144214A (en) | 1980-11-11 |
JPS624686B2 JPS624686B2 (en) | 1987-01-31 |
Family
ID=12949085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5366379A Granted JPS55144214A (en) | 1978-11-25 | 1979-04-30 | Lens barrel capable of adjusting focus automatically and manually |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55144214A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165125A (en) * | 1980-05-23 | 1981-12-18 | Kyocera Corp | Automatic manual exchange lens |
JPS58195626A (en) * | 1982-05-11 | 1983-11-14 | Shozo Ogura | Back-filling injection method of sheet pile |
JPS58182903U (en) * | 1982-05-28 | 1983-12-06 | 京セラ株式会社 | Manual autofocus switch for autofocus lenses |
JPS5975229A (en) * | 1982-10-22 | 1984-04-27 | Kyocera Corp | Automatic focus adjusting camera capable of manual focus adjustment |
JPS6346418A (en) * | 1987-05-26 | 1988-02-27 | Olympus Optical Co Ltd | Autofocusing camera |
-
1979
- 1979-04-30 JP JP5366379A patent/JPS55144214A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56165125A (en) * | 1980-05-23 | 1981-12-18 | Kyocera Corp | Automatic manual exchange lens |
JPS6333685B2 (en) * | 1980-05-23 | 1988-07-06 | Kyosera Kk | |
JPS58195626A (en) * | 1982-05-11 | 1983-11-14 | Shozo Ogura | Back-filling injection method of sheet pile |
JPS58182903U (en) * | 1982-05-28 | 1983-12-06 | 京セラ株式会社 | Manual autofocus switch for autofocus lenses |
JPS5975229A (en) * | 1982-10-22 | 1984-04-27 | Kyocera Corp | Automatic focus adjusting camera capable of manual focus adjustment |
JPS6346418A (en) * | 1987-05-26 | 1988-02-27 | Olympus Optical Co Ltd | Autofocusing camera |
Also Published As
Publication number | Publication date |
---|---|
JPS624686B2 (en) | 1987-01-31 |
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