JPS5194224A - - Google Patents
Info
- Publication number
- JPS5194224A JPS5194224A JP75576A JP75576A JPS5194224A JP S5194224 A JPS5194224 A JP S5194224A JP 75576 A JP75576 A JP 75576A JP 75576 A JP75576 A JP 75576A JP S5194224 A JPS5194224 A JP S5194224A
- Authority
- JP
- Japan
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/081—Analogue circuits
- G03B7/087—Analogue circuits for control of both exposure time and aperture
-
- 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
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
- G03B7/091—Digital circuits
- G03B7/097—Digital circuits for control of both exposure time and aperture
-
- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/08—Shutters
- G03B9/36—Sliding rigid plate
- G03B9/40—Double plate
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
- Shutters For Cameras (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/538,108 US3975744A (en) | 1974-08-05 | 1975-01-02 | Automatic exposure control system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5194224A true JPS5194224A (en) | 1976-08-18 |
JPS6148139B2 JPS6148139B2 (en) | 1986-10-22 |
Family
ID=24145529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP75576A Expired JPS6148139B2 (en) | 1975-01-02 | 1976-01-05 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6148139B2 (en) |
CA (1) | CA1061625A (en) |
DE (1) | DE2558253A1 (en) |
FR (1) | FR2296867A1 (en) |
GB (1) | GB1529209A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129424A (en) * | 1980-12-19 | 1982-08-11 | Polaroid Corp | Photographic camera apparatus |
JPS59189328A (en) * | 1983-04-13 | 1984-10-26 | Fuji Photo Optical Co Ltd | Specifying device for maximum aperture diameter of shutter |
US10531176B2 (en) | 2015-03-17 | 2020-01-07 | Koss Corporation | Personal acoustic systems and flexible earpiece mounts for the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3326103A (en) * | 1964-12-09 | 1967-06-20 | Polaroid Corp | Auxiliary shutter timing mechanism |
US3464332A (en) * | 1966-05-12 | 1969-09-02 | Polaroid Corp | Automatic exposure control system |
DE2163294C3 (en) * | 1970-12-24 | 1981-06-11 | Polaroid Corp., 02139 Cambridge, Mass. | Photographic apparatus |
US3832722A (en) * | 1971-08-03 | 1974-08-27 | Polaroid Corp | Apparatus and system for flash photography |
-
1975
- 1975-12-23 DE DE19752558253 patent/DE2558253A1/en not_active Ceased
- 1975-12-24 GB GB5291575A patent/GB1529209A/en not_active Expired
- 1975-12-30 CA CA242,822A patent/CA1061625A/en not_active Expired
- 1975-12-30 FR FR7540127A patent/FR2296867A1/en active Granted
-
1976
- 1976-01-05 JP JP75576A patent/JPS6148139B2/ja not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57129424A (en) * | 1980-12-19 | 1982-08-11 | Polaroid Corp | Photographic camera apparatus |
JPS59189328A (en) * | 1983-04-13 | 1984-10-26 | Fuji Photo Optical Co Ltd | Specifying device for maximum aperture diameter of shutter |
US10531176B2 (en) | 2015-03-17 | 2020-01-07 | Koss Corporation | Personal acoustic systems and flexible earpiece mounts for the same |
Also Published As
Publication number | Publication date |
---|---|
FR2296867A1 (en) | 1976-07-30 |
FR2296867B1 (en) | 1982-11-12 |
DE2558253A1 (en) | 1976-07-08 |
CA1061625A (en) | 1979-09-04 |
JPS6148139B2 (en) | 1986-10-22 |
GB1529209A (en) | 1978-10-18 |