DE2131007B2 - Belichtungssteuerung für eine Kamera - Google Patents
Belichtungssteuerung für eine KameraInfo
- Publication number
- DE2131007B2 DE2131007B2 DE2131007A DE2131007A DE2131007B2 DE 2131007 B2 DE2131007 B2 DE 2131007B2 DE 2131007 A DE2131007 A DE 2131007A DE 2131007 A DE2131007 A DE 2131007A DE 2131007 B2 DE2131007 B2 DE 2131007B2
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- shutter
- exposure
- camera
- opening
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 17
- 241000446313 Lamella Species 0.000 description 14
- 230000007246 mechanism Effects 0.000 description 14
- 239000003990 capacitor Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 208000025865 Ulcer Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- 238000004804 winding Methods 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
- G03B7/081—Analogue circuits
- G03B7/087—Analogue circuits for control of both exposure time and aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4836470A | 1970-06-22 | 1970-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2131007A1 DE2131007A1 (de) | 1971-12-23 |
| DE2131007B2 true DE2131007B2 (de) | 1979-09-20 |
Family
ID=21954185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2131007A Withdrawn DE2131007B2 (de) | 1970-06-22 | 1971-06-22 | Belichtungssteuerung für eine Kamera |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3664245A (cg-RX-API-DMAC10.html) |
| CA (1) | CA961330A (cg-RX-API-DMAC10.html) |
| DE (1) | DE2131007B2 (cg-RX-API-DMAC10.html) |
| FR (1) | FR2099779A5 (cg-RX-API-DMAC10.html) |
| GB (1) | GB1357223A (cg-RX-API-DMAC10.html) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762299A (en) * | 1972-04-21 | 1973-10-02 | Polaroid Corp | Exposure control mechanism |
| JPS4928337A (cg-RX-API-DMAC10.html) * | 1972-07-04 | 1974-03-13 | ||
| JPS5613930B2 (cg-RX-API-DMAC10.html) * | 1972-07-18 | 1981-04-01 | ||
| JPS5013038A (cg-RX-API-DMAC10.html) * | 1973-06-04 | 1975-02-10 | ||
| JPS5146944A (ja) * | 1974-10-18 | 1976-04-22 | West Electric Co | Puroguramushatsuta |
| JPS5146941A (ja) * | 1974-10-18 | 1976-04-22 | West Electric Co | Puroguramushatsuta |
| US4112443A (en) * | 1976-01-26 | 1978-09-05 | Ricoh Co., Ltd. | Shutter and low-light indicator actuating device for a camera |
| JPS59228636A (ja) * | 1983-06-10 | 1984-12-22 | Konishiroku Photo Ind Co Ltd | 自動焦点調節装置付カメラのプログラム自動露出制御装置 |
| US4996551A (en) * | 1989-02-20 | 1991-02-26 | Fuji Photo Film Co., Ltd. | Exposure control apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232192A (en) * | 1963-02-20 | 1966-02-01 | Eastman Kodak Co | Photographic exposure measuring device |
| US3292516A (en) * | 1963-05-17 | 1966-12-20 | Copal Co Ltd | Photographic camera with automatic exposure control |
| US3464332A (en) * | 1966-05-12 | 1969-09-02 | Polaroid Corp | Automatic exposure control system |
| US3427941A (en) * | 1966-07-28 | 1969-02-18 | Eastman Kodak Co | Automatic exposure control |
| DE1597247A1 (de) * | 1967-04-05 | 1970-10-01 | Kodak Ag | Photographische Kamera mit elektronischer Verschlusszeitsteuerung und Belichtungszeit-Anzeige |
| US3554104A (en) * | 1967-05-05 | 1971-01-12 | Agfa Gevaert Ag | Exposure control for photographic cameras |
| DE1597049A1 (de) * | 1967-05-05 | 1970-03-26 | Agfa Gevaert Ag | Fotografische Kamera mit einem durch einen Verzoegerungsschaltkreis gesteuerten Verschluss |
-
1970
- 1970-06-22 US US48364A patent/US3664245A/en not_active Expired - Lifetime
-
1971
- 1971-05-26 CA CA113,912A patent/CA961330A/en not_active Expired
- 1971-06-22 DE DE2131007A patent/DE2131007B2/de not_active Withdrawn
- 1971-06-22 FR FR7122642A patent/FR2099779A5/fr not_active Expired
- 1971-06-22 GB GB2918171A patent/GB1357223A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA961330A (en) | 1975-01-21 |
| DE2131007A1 (de) | 1971-12-23 |
| US3664245A (en) | 1972-05-23 |
| GB1357223A (en) | 1974-06-19 |
| FR2099779A5 (cg-RX-API-DMAC10.html) | 1972-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| BHN | Withdrawal |