JPS57204521A - Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera - Google Patents
Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex cameraInfo
- Publication number
- JPS57204521A JPS57204521A JP9064781A JP9064781A JPS57204521A JP S57204521 A JPS57204521 A JP S57204521A JP 9064781 A JP9064781 A JP 9064781A JP 9064781 A JP9064781 A JP 9064781A JP S57204521 A JPS57204521 A JP S57204521A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- releases
- release lever
- lens reflex
- reflecting mirror
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
- Cameras In General (AREA)
- Diaphragms For Cameras (AREA)
Abstract
PURPOSE:To eliminating irregularity of exposure due to the bounding of a diaphragm by delaying the springing-up operation of a mirror through a speed adjusting device in the diaphragm and mirror driving mechanism of a single-lens reflex camera. CONSTITUTION:When an electromagnet 64 releases an attracted piece 65 in a charging state, an actuation member 61 presses levers 29 and 40. Since a diaphragm release lever 29 releases a diaphragm driving member 9, stopping-down operation starts. On the other hand, a speed adjusting mechanism release lever 40 releases the pin 53 of a sector gear 41, so a speed adjusting mechanism consisting of a pinion 48, an escape wheel 47, and a pallet fork 29 operates. The sector gear rotates at a low speed and after the preset time when the bounding of a diaphragm decreases sufficiently to a suppressed value, a pin 55 presses a release lever 11 to release a reflecting mirror driving member 5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9064781A JPS57204521A (en) | 1981-06-11 | 1981-06-11 | Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9064781A JPS57204521A (en) | 1981-06-11 | 1981-06-11 | Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57204521A true JPS57204521A (en) | 1982-12-15 |
Family
ID=14004296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9064781A Pending JPS57204521A (en) | 1981-06-11 | 1981-06-11 | Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57204521A (en) |
-
1981
- 1981-06-11 JP JP9064781A patent/JPS57204521A/en active Pending
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