JPS5573025A - Changeover device of automatic-manual focus controllable lens-barrel - Google Patents
Changeover device of automatic-manual focus controllable lens-barrelInfo
- Publication number
- JPS5573025A JPS5573025A JP14550278A JP14550278A JPS5573025A JP S5573025 A JPS5573025 A JP S5573025A JP 14550278 A JP14550278 A JP 14550278A JP 14550278 A JP14550278 A JP 14550278A JP S5573025 A JPS5573025 A JP S5573025A
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- automatic
- manual
- helicoid
- 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.)
- Pending
Links
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE: To obviate mutual interference of a manual operating member and automatic operating member by providing a suppressing means which suppresses the other member to the close distance focus position or infinite focus position of itself when either of the members is selected.
CONSTITUTION: There are three helicoid barrels, an outer helicoid barrel 13, middle helicoid barrel and inside helicoid barrel 17. The barrel 15 and distance setting ring 11 are held coupled. Further the cam face and concave face with which a set distance detecting member 31 and automatic focus detecting member 33 make contact are provided to the rear end face of the ring 11. The barrel 13 is secured to a stationary ring 21 and a rectilinear propagation key 19 is secured to the barrel 17. By changing over a manual-automatic focus setting changeover ring 26 to either automatic or manaul, either manual or automatic foucs setting is accomplished and always desired focus controlling is accomplished without mutual interference of the manual operating member and automatic control member.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14550278A JPS5573025A (en) | 1978-11-25 | 1978-11-25 | Changeover device of automatic-manual focus controllable lens-barrel |
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 |
---|---|---|---|
JP14550278A JPS5573025A (en) | 1978-11-25 | 1978-11-25 | Changeover device of automatic-manual focus controllable lens-barrel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5573025A true JPS5573025A (en) | 1980-06-02 |
Family
ID=15386733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14550278A Pending JPS5573025A (en) | 1978-11-25 | 1978-11-25 | Changeover device of automatic-manual focus controllable lens-barrel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5573025A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS575032A (en) * | 1980-06-11 | 1982-01-11 | Asahi Optical Co Ltd | Automatic focusing camera of lens interchangeable type |
JPS579914U (en) * | 1980-06-13 | 1982-01-19 | ||
JPS5754116U (en) * | 1980-09-11 | 1982-03-30 | ||
JPS5794707A (en) * | 1980-12-04 | 1982-06-12 | Canon Inc | Lens barrel capable of automatic focusing operation |
JPS57187433U (en) * | 1981-05-22 | 1982-11-27 | ||
JPS57195224A (en) * | 1981-05-27 | 1982-11-30 | Olympus Optical Co Ltd | Automatic focusing camera |
JPS5975229A (en) * | 1982-10-22 | 1984-04-27 | Kyocera Corp | Automatic focus adjusting camera capable of manual focus adjustment |
US4491396A (en) * | 1980-12-11 | 1985-01-01 | Canon Kabushiki Kaisha | Automatic focusing zoom lens mounting |
JPS6346418A (en) * | 1987-05-26 | 1988-02-27 | Olympus Optical Co Ltd | Autofocusing camera |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5344021A (en) * | 1977-10-26 | 1978-04-20 | Minolta Camera Co Ltd | Safety means for automatic focusing device |
JPS53145503A (en) * | 1977-05-25 | 1978-12-18 | Hitachi Ltd | Voltage switch circuit |
JPS5461525A (en) * | 1977-10-03 | 1979-05-17 | Polaroid Corp | Variable focus lens unit and camera |
-
1978
- 1978-11-25 JP JP14550278A patent/JPS5573025A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53145503A (en) * | 1977-05-25 | 1978-12-18 | Hitachi Ltd | Voltage switch circuit |
JPS5461525A (en) * | 1977-10-03 | 1979-05-17 | Polaroid Corp | Variable focus lens unit and camera |
JPS5344021A (en) * | 1977-10-26 | 1978-04-20 | Minolta Camera Co Ltd | Safety means for automatic focusing device |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS575032A (en) * | 1980-06-11 | 1982-01-11 | Asahi Optical Co Ltd | Automatic focusing camera of lens interchangeable type |
JPS579914U (en) * | 1980-06-13 | 1982-01-19 | ||
JPS5754116U (en) * | 1980-09-11 | 1982-03-30 | ||
JPS644084Y2 (en) * | 1980-09-11 | 1989-02-02 | ||
JPS5794707A (en) * | 1980-12-04 | 1982-06-12 | Canon Inc | Lens barrel capable of automatic focusing operation |
JPS6345563B2 (en) * | 1980-12-04 | 1988-09-09 | Canon Kk | |
US4491396A (en) * | 1980-12-11 | 1985-01-01 | Canon Kabushiki Kaisha | Automatic focusing zoom lens mounting |
JPS57187433U (en) * | 1981-05-22 | 1982-11-27 | ||
JPS57195224A (en) * | 1981-05-27 | 1982-11-30 | Olympus Optical Co Ltd | Automatic focusing camera |
JPH0370211B2 (en) * | 1981-05-27 | 1991-11-06 | Olympus Optical Co | |
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 |
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