JPS50115032A - - Google Patents
Info
- Publication number
- JPS50115032A JPS50115032A JP49019271A JP1927174A JPS50115032A JP S50115032 A JPS50115032 A JP S50115032A JP 49019271 A JP49019271 A JP 49019271A JP 1927174 A JP1927174 A JP 1927174A JP S50115032 A JPS50115032 A JP S50115032A
- 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
- G03B7/08—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
- G03B7/093—Digital circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1927174A JPS576565B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-02-18 | 1974-02-18 | |
| DE19752504573 DE2504573A1 (de) | 1974-02-18 | 1975-02-04 | Belichtungszeit-steuervorrichtung fuer einen elektronischen verschluss einer kamera |
| GB6445/75A GB1479705A (en) | 1974-02-18 | 1975-02-14 | Photographic cameras |
| FR7504974A FR2261550B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-02-18 | 1975-02-18 | |
| US05/550,591 US4048642A (en) | 1974-02-18 | 1975-02-18 | Exposure time control device of electric shutter for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1927174A JPS576565B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-02-18 | 1974-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50115032A true JPS50115032A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-09 |
| JPS576565B2 JPS576565B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-02-05 |
Family
ID=11994767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1927174A Expired JPS576565B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-02-18 | 1974-02-18 |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306785A (en) * | 1979-02-01 | 1981-12-22 | Asahi Kogaku Kogyo Kabushiki Kaisha | Camera exposure time control circuit |
| JPS55155337A (en) * | 1979-05-23 | 1980-12-03 | Canon Inc | Focus adjuster |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831941A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-08-27 | 1973-04-26 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2006025A1 (de) * | 1970-02-11 | 1971-08-26 | Leitz Ernst Gmbh | Schaltungsanordnung fur Behchtungs messer |
| JPS4963430A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-10-17 | 1974-06-19 | ||
| JPS5640811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-12-29 | 1981-09-24 |
-
1974
- 1974-02-18 JP JP1927174A patent/JPS576565B2/ja not_active Expired
-
1975
- 1975-02-04 DE DE19752504573 patent/DE2504573A1/de not_active Withdrawn
- 1975-02-14 GB GB6445/75A patent/GB1479705A/en not_active Expired
- 1975-02-18 FR FR7504974A patent/FR2261550B1/fr not_active Expired
- 1975-02-18 US US05/550,591 patent/US4048642A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831941A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-08-27 | 1973-04-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS576565B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-02-05 |
| GB1479705A (en) | 1977-07-13 |
| FR2261550B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-10-06 |
| US4048642A (en) | 1977-09-13 |
| DE2504573A1 (de) | 1975-08-21 |
| FR2261550A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-12 |