JPS563564B2 - - Google Patents
Info
- Publication number
- JPS563564B2 JPS563564B2 JP10069573A JP10069573A JPS563564B2 JP S563564 B2 JPS563564 B2 JP S563564B2 JP 10069573 A JP10069573 A JP 10069573A JP 10069573 A JP10069573 A JP 10069573A JP S563564 B2 JPS563564 B2 JP S563564B2
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10069573A JPS563564B2 (US08087162-20120103-C00010.png) | 1973-09-06 | 1973-09-06 | |
| US05/503,528 US3963970A (en) | 1973-09-06 | 1974-09-04 | Control circuit for servo-motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10069573A JPS563564B2 (US08087162-20120103-C00010.png) | 1973-09-06 | 1973-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5050575A JPS5050575A (US08087162-20120103-C00010.png) | 1975-05-07 |
| JPS563564B2 true JPS563564B2 (US08087162-20120103-C00010.png) | 1981-01-26 |
Family
ID=14280851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10069573A Expired JPS563564B2 (US08087162-20120103-C00010.png) | 1973-09-06 | 1973-09-06 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3963970A (US08087162-20120103-C00010.png) |
| JP (1) | JPS563564B2 (US08087162-20120103-C00010.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220981A (ja) * | 1986-03-20 | 1987-09-29 | Katsuragawa Denki Kk | クリ−ニング装置 |
| JPS63249185A (ja) * | 1987-04-03 | 1988-10-17 | Konica Corp | 画像形成装置のクリ−ニング装置 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5170640A (en) * | 1974-12-16 | 1976-06-18 | Fuji Photo Optical Co Ltd | Kamerano jidoroshutsuseigyokiko |
| US4178087A (en) * | 1978-10-02 | 1979-12-11 | Polaroid Corporation | Autofocus movie camera having focus correction means |
| US4309098A (en) * | 1978-12-01 | 1982-01-05 | Polaroid Corporation | Autofocus cine camera having automatic variable speed focusing |
| US4239354A (en) * | 1979-01-02 | 1980-12-16 | Polaroid Corporation | Autofocus movie camera having improved focus response |
| US4238143A (en) * | 1979-01-02 | 1980-12-09 | Polaroid Corporation | Autofocus movie camera having pulsed terminal drive means |
| USRE31362E (en) * | 1979-01-02 | 1983-08-30 | Polaroid Corporation | Autofocus movie camera having pulsed terminal drive means |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1497371C3 (de) * | 1965-03-10 | 1974-01-10 | Agfa-Gevaert Ag, 5090 Leverkusen | Verfahren zur Regelung der Belichtungszeit von Kopiergeräten |
| US3394642A (en) * | 1965-06-01 | 1968-07-30 | Elmo Co Ltd | Electrical circuit for automatically controlling an aperture device for a photographic camera |
| CH446878A (de) * | 1965-12-01 | 1967-11-15 | Compur Werk Gmbh & Co | Lichtbildaufnahmegerät mit elektronischer Einrichtung zur Belichtungsfaktor-Einstellung |
| 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 |
| US3641891A (en) * | 1969-06-30 | 1972-02-15 | Polaroid Corp | Exposure control system |
| JPS4837605B1 (US08087162-20120103-C00010.png) * | 1970-04-14 | 1973-11-12 | ||
| JPS5112107Y2 (US08087162-20120103-C00010.png) * | 1971-09-02 | 1976-04-01 |
-
1973
- 1973-09-06 JP JP10069573A patent/JPS563564B2/ja not_active Expired
-
1974
- 1974-09-04 US US05/503,528 patent/US3963970A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220981A (ja) * | 1986-03-20 | 1987-09-29 | Katsuragawa Denki Kk | クリ−ニング装置 |
| JPS63249185A (ja) * | 1987-04-03 | 1988-10-17 | Konica Corp | 画像形成装置のクリ−ニング装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5050575A (US08087162-20120103-C00010.png) | 1975-05-07 |
| US3963970A (en) | 1976-06-15 |
