DE3034643C2 - Blendensteuerung für eine Kamera - Google Patents
Blendensteuerung für eine KameraInfo
- Publication number
- DE3034643C2 DE3034643C2 DE3034643A DE3034643A DE3034643C2 DE 3034643 C2 DE3034643 C2 DE 3034643C2 DE 3034643 A DE3034643 A DE 3034643A DE 3034643 A DE3034643 A DE 3034643A DE 3034643 C2 DE3034643 C2 DE 3034643C2
- Authority
- DE
- Germany
- Prior art keywords
- signal
- pole pins
- pulse
- control according
- aperture control
- Prior art date
- 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
- 230000005284 excitation Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 description 12
- 238000004804 winding Methods 0.000 description 12
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000005281 excited state Effects 0.000 description 3
- 230000036316 preload Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- G03B7/095—Digital circuits for control of aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shutters For Cameras (AREA)
- Control Of Stepping Motors (AREA)
- Diaphragms For Cameras (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11972379A JPS5643629A (en) | 1979-09-18 | 1979-09-18 | Diaphragm control unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3034643A1 DE3034643A1 (de) | 1981-03-19 |
| DE3034643C2 true DE3034643C2 (de) | 1986-07-24 |
Family
ID=14768519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3034643A Expired DE3034643C2 (de) | 1979-09-18 | 1980-09-13 | Blendensteuerung für eine Kamera |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4344678A (enExample) |
| JP (1) | JPS5643629A (enExample) |
| DE (1) | DE3034643C2 (enExample) |
| FR (1) | FR2466034A1 (enExample) |
| GB (1) | GB2060917B (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56153326A (en) * | 1980-04-30 | 1981-11-27 | Konishiroku Photo Ind Co Ltd | Aperture control method |
| US4657368A (en) * | 1981-12-24 | 1987-04-14 | Canon Kabushiki Kaisha | Automatic exposure control device |
| JPH0667277B2 (ja) * | 1984-05-08 | 1994-08-24 | キヤノン株式会社 | ステッピングモ−タ−制御装置 |
| JPS61240897A (ja) * | 1985-04-16 | 1986-10-27 | Canon Inc | ステツプモ−タ駆動装置 |
| JPH02105121A (ja) * | 1988-10-14 | 1990-04-17 | Olympus Optical Co Ltd | 絞り制御装置 |
| JP2520491B2 (ja) * | 1989-12-12 | 1996-07-31 | キヤノン電子株式会社 | 光学機器 |
| US5150149A (en) * | 1991-07-25 | 1992-09-22 | Eastman Kodak Company | Multi-aperture electromagnetic camera shutter |
| JP5136203B2 (ja) * | 2008-05-20 | 2013-02-06 | 京セラドキュメントソリューションズ株式会社 | 画像形成システム |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1278226B (de) * | 1960-10-20 | 1968-09-19 | Naoyuki Ohara | Einaeugige Spiegelreflexkamera mit eingebautem Belichtungsmesser |
| AT325944B (de) * | 1972-03-25 | 1975-11-10 | Agfa Gevaert Ag | Photographische oder kinematographische kamera |
| AU6012173A (en) * | 1972-09-14 | 1975-03-13 | Koike Seiki K K | Diaphragm-assisted exposure control device and electro- magnetic rotary motion device |
| DE2353703C3 (de) * | 1973-10-26 | 1981-06-11 | Agfa-Gevaert Ag, 5090 Leverkusen | Fotografische oder kinematografische Kamera |
| GB1476144A (en) * | 1973-11-05 | 1977-06-10 | West Electric Co | Programmed shutters |
| JPS50138829A (enExample) | 1974-04-23 | 1975-11-06 | ||
| US4057810A (en) * | 1974-08-20 | 1977-11-08 | West Electric Co., Ltd. | Exposure control system |
| JPS5146939A (en) | 1974-10-18 | 1976-04-22 | West Electric Co | Roshutsuseigyosochi |
| DE2518675B2 (de) * | 1975-04-26 | 1977-07-28 | Braun Ag, 6000 Frankfurt | Belichtungsregler fuer filmkameras |
-
1979
- 1979-09-18 JP JP11972379A patent/JPS5643629A/ja active Granted
-
1980
- 1980-09-11 GB GB8029446A patent/GB2060917B/en not_active Expired
- 1980-09-13 DE DE3034643A patent/DE3034643C2/de not_active Expired
- 1980-09-16 US US06/187,763 patent/US4344678A/en not_active Expired - Lifetime
- 1980-09-17 FR FR8020045A patent/FR2466034A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| US4344678A (en) | 1982-08-17 |
| JPS6339885B2 (enExample) | 1988-08-08 |
| JPS5643629A (en) | 1981-04-22 |
| GB2060917A (en) | 1981-05-07 |
| FR2466034A1 (fr) | 1981-03-27 |
| DE3034643A1 (de) | 1981-03-19 |
| GB2060917B (en) | 1983-08-17 |
| FR2466034B1 (enExample) | 1983-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8128 | New person/name/address of the agent |
Representative=s name: KUHNEN, R., DIPL.-ING. WACKER, P., DIPL.-ING. DIPL |
|
| 8125 | Change of the main classification |
Ipc: G03B 9/02 |
|
| 8128 | New person/name/address of the agent |
Representative=s name: KUHNEN, R., DIPL.-ING. WACKER, P., DIPL.-ING. DIPL |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |