JPS5116291Y2 - - Google Patents
Info
- Publication number
- JPS5116291Y2 JPS5116291Y2 JP11175771U JP11175771U JPS5116291Y2 JP S5116291 Y2 JPS5116291 Y2 JP S5116291Y2 JP 11175771 U JP11175771 U JP 11175771U JP 11175771 U JP11175771 U JP 11175771U JP S5116291 Y2 JPS5116291 Y2 JP S5116291Y2
- 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.)
- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Direct Current Motors (AREA)
- Exposure Control For Cameras (AREA)
- Control Of Non-Electrical Variables (AREA)
- Shutters For Cameras (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175771U JPS5116291Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-11-30 | 1971-11-30 | |
| US3776111D US3776111A (en) | 1971-11-30 | 1972-11-17 | Automatic exposure determining device |
| GB5475272A GB1373735A (en) | 1971-11-30 | 1972-11-27 | Automatic exposure control device |
| DE2258119A DE2258119B2 (de) | 1971-11-30 | 1972-11-28 | Automatische Belichtungseinstellvorrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175771U JPS5116291Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-11-30 | 1971-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4867738U JPS4867738U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-28 |
| JPS5116291Y2 true JPS5116291Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-04-28 |
Family
ID=14569403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11175771U Expired JPS5116291Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-11-30 | 1971-11-30 |
Country Status (4)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100558A (en) * | 1972-09-14 | 1978-07-11 | Hiroshi Koike | Automatic-exposure control device for optical instruments |
| JPS5250689B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1972-12-29 | 1977-12-27 | ||
| JPS49126328A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1973-04-04 | 1974-12-03 | ||
| US3978384A (en) * | 1974-04-24 | 1976-08-31 | Potter Instrument Company, Inc. | Bidirectional motor drive using switched amplitude controlled current |
| JPS5846406Y2 (ja) * | 1974-05-16 | 1983-10-22 | ニホンセイミツソツキ カブシキガイシヤ | サ−ボロコウリヨウセイギヨソウチ |
| US4010480A (en) * | 1974-08-19 | 1977-03-01 | Yugenkaisha Sato Kenkyusho | Control circuit for automatically controlling a diaphragm of a camera |
| US4072962A (en) * | 1975-07-03 | 1978-02-07 | Nippon Kogaku K.K. | Metering device |
| JPS5620395U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1979-07-23 | 1981-02-23 | ||
| JPS56157289A (en) * | 1980-05-01 | 1981-12-04 | Olympus Optical Co Ltd | Braking device for motor |
| US4545004A (en) * | 1984-03-22 | 1985-10-01 | General Motors Corporation | Bridge driver circuit for a DC electric motor |
| US5666036A (en) * | 1995-05-31 | 1997-09-09 | Sgs-Thomson Microelectronics, Inc. | Circuit for driving the motor of a temperature blend door |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935695B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1965-10-07 | 1974-09-25 | ||
| US3476028A (en) * | 1966-03-08 | 1969-11-04 | Minolta Camera Kk | Monocular narrow angle exposure meter |
| US3427941A (en) * | 1966-07-28 | 1969-02-18 | Eastman Kodak Co | Automatic exposure control |
| FR1500299A (fr) * | 1966-09-20 | 1967-11-03 | Optique Prec Soc D | Dispositif de commande automatique du diaphragme d'un appareil de prise de vues |
| US3430053A (en) * | 1967-08-24 | 1969-02-25 | Lawrence A Westhaver | Method for aperture control in which the loop gain is caused to vanish when the absolute value of the error is less than a given value and is caused to assume its nominal value when the absolute value of the error is greater than a second given value |
| US3611894A (en) * | 1969-04-22 | 1971-10-12 | Bell & Howell Co | Automatic exposure control system |
| US3696719A (en) * | 1970-02-26 | 1972-10-10 | Canon Kk | Automatic exposure control device |
-
1971
- 1971-11-30 JP JP11175771U patent/JPS5116291Y2/ja not_active Expired
-
1972
- 1972-11-17 US US3776111D patent/US3776111A/en not_active Expired - Lifetime
- 1972-11-27 GB GB5475272A patent/GB1373735A/en not_active Expired
- 1972-11-28 DE DE2258119A patent/DE2258119B2/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4867738U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-08-28 |
| DE2258119B2 (de) | 1975-02-06 |
| DE2258119A1 (de) | 1973-06-07 |
| GB1373735A (en) | 1974-11-13 |
| US3776111A (en) | 1973-12-04 |