FR2223720B1 - - Google Patents
Info
- Publication number
- FR2223720B1 FR2223720B1 FR7411484A FR7411484A FR2223720B1 FR 2223720 B1 FR2223720 B1 FR 2223720B1 FR 7411484 A FR7411484 A FR 7411484A FR 7411484 A FR7411484 A FR 7411484A FR 2223720 B1 FR2223720 B1 FR 2223720B1
- Authority
- FR
- France
- 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.)
- Expired
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
-
- 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
-
- 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
- G03B7/085—Analogue circuits for control of 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
- G03B7/081—Analogue circuits
- G03B7/089—Analogue circuits for storage of exposure value in mirror reflex cameras
-
- 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
- G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48036287A JPS49123326A (xx) | 1973-03-30 | 1973-03-30 | |
JP48048672A JPS50836A (xx) | 1973-04-28 | 1973-04-28 | |
JP48053296A JPS503626A (xx) | 1973-05-14 | 1973-05-14 | |
JP5499873A JPS507525A (xx) | 1973-05-17 | 1973-05-17 | |
JP5499973A JPS507526A (xx) | 1973-05-17 | 1973-05-17 | |
JP5499773A JPS507524A (xx) | 1973-05-17 | 1973-05-17 | |
JP5733273A JPS509422A (xx) | 1973-05-22 | 1973-05-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2223720A1 FR2223720A1 (xx) | 1974-10-25 |
FR2223720B1 true FR2223720B1 (xx) | 1977-10-21 |
Family
ID=27564424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7411484A Expired FR2223720B1 (xx) | 1973-03-30 | 1974-03-29 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2415615C2 (xx) |
FR (1) | FR2223720B1 (xx) |
NL (1) | NL180960C (xx) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS618414B2 (xx) * | 1973-07-17 | 1986-03-14 | Minolta Camera Kk |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4923779B1 (xx) * | 1970-07-03 | 1974-06-18 | ||
JPS571813B1 (xx) * | 1971-05-31 | 1982-01-13 | ||
JPS5112107Y2 (xx) * | 1971-09-02 | 1976-04-01 |
-
1974
- 1974-03-29 NL NLAANVRAGE7404331,A patent/NL180960C/xx not_active IP Right Cessation
- 1974-03-29 FR FR7411484A patent/FR2223720B1/fr not_active Expired
- 1974-03-30 DE DE2415615A patent/DE2415615C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2415615C2 (de) | 1983-12-01 |
NL7404331A (xx) | 1974-10-02 |
DE2415615A1 (de) | 1974-10-17 |
NL180960C (nl) | 1987-05-18 |
NL180960B (nl) | 1986-12-16 |
FR2223720A1 (xx) | 1974-10-25 |