JPS55118023A - Program control mirror shutter - Google Patents
Program control mirror shutterInfo
- Publication number
- JPS55118023A JPS55118023A JP2577179A JP2577179A JPS55118023A JP S55118023 A JPS55118023 A JP S55118023A JP 2577179 A JP2577179 A JP 2577179A JP 2577179 A JP2577179 A JP 2577179A JP S55118023 A JPS55118023 A JP S55118023A
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- iris
- arm
- program control
- blade
- 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
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)
- Shutters For Cameras (AREA)
- Cameras In General (AREA)
Abstract
PURPOSE: To obtain the program control mirror shutter which is capable of simultaneously controlling iris and shutter speed with a simple construction by controlling an auxiliary iris member, and a blade serving both as a main iris and shutter through utilization of mirror kick-up motion.
CONSTITUTION: As a shutter release button is depressed, an auxiliary iris member 13 rises until it abuts against the arm 27 of a control member 23 whose oscillation amount is controlled by an exposure control ring 29. Thence, when the shutter release button is pushed further, the detention of a kickup member 20 is released and a blade 6 serving both as main iris and shutter is kicked up by a protruding part 9 until it abuts against the arm 26 of the member 23, thus the program control mirror shutter which is capable of simultaneously controlling the iris opening 22 by the opening 7 in the central part of the blade 6 according to the set position of the arm 27 of the member 23 and the shutter speed according to the set position of the arm 26 of the member 23 with the simple constitution is provided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2577179A JPS55118023A (en) | 1979-03-06 | 1979-03-06 | Program control mirror shutter |
DE19803008504 DE3008504A1 (en) | 1979-03-06 | 1980-03-05 | Aperture control for SLR camera - has curved aperture plate under position controlled mirror |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2577179A JPS55118023A (en) | 1979-03-06 | 1979-03-06 | Program control mirror shutter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55118023A true JPS55118023A (en) | 1980-09-10 |
JPH0157771B2 JPH0157771B2 (en) | 1989-12-07 |
Family
ID=12175100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2577179A Granted JPS55118023A (en) | 1979-03-06 | 1979-03-06 | Program control mirror shutter |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS55118023A (en) |
DE (1) | DE3008504A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271231A (en) * | 1975-12-11 | 1977-06-14 | Fuji Photo Film Co Ltd | Double blade type shutter means |
-
1979
- 1979-03-06 JP JP2577179A patent/JPS55118023A/en active Granted
-
1980
- 1980-03-05 DE DE19803008504 patent/DE3008504A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271231A (en) * | 1975-12-11 | 1977-06-14 | Fuji Photo Film Co Ltd | Double blade type shutter means |
Also Published As
Publication number | Publication date |
---|---|
DE3008504A1 (en) | 1980-09-18 |
JPH0157771B2 (en) | 1989-12-07 |
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