DE2463382C2 - Elektronische Belichtungssteuereinrichtung - Google Patents
Elektronische BelichtungssteuereinrichtungInfo
- Publication number
- DE2463382C2 DE2463382C2 DE2463382A DE2463382A DE2463382C2 DE 2463382 C2 DE2463382 C2 DE 2463382C2 DE 2463382 A DE2463382 A DE 2463382A DE 2463382 A DE2463382 A DE 2463382A DE 2463382 C2 DE2463382 C2 DE 2463382C2
- Authority
- DE
- Germany
- Prior art keywords
- exposure
- value
- setting
- circuit
- aperture
- 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
- 238000004364 calculation method Methods 0.000 description 26
- 230000007246 mechanism Effects 0.000 description 13
- 238000013500 data storage Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000011514 reflex Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- ZIFGWWCUONMOLI-UHFFFAOYSA-N 7-methyl-1,8-naphthyridin-2-amine Chemical compound C1=CC(N)=NC2=NC(C)=CC=C21 ZIFGWWCUONMOLI-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000007723 transport mechanism 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
-
- 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
- G03B7/097—Digital circuits for control of both exposure time and aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48080087A JPS5028831A (enrdf_load_stackoverflow) | 1973-07-16 | 1973-07-16 | |
| JP9591673A JPS5710411B2 (enrdf_load_stackoverflow) | 1973-08-27 | 1973-08-27 | |
| JP48096502A JPS5046131A (enrdf_load_stackoverflow) | 1973-08-28 | 1973-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2463382C2 true DE2463382C2 (de) | 1986-09-04 |
Family
ID=27303203
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2463382A Expired DE2463382C2 (de) | 1973-07-16 | 1974-07-16 | Elektronische Belichtungssteuereinrichtung |
| DE2434152A Expired DE2434152C2 (de) | 1973-07-16 | 1974-07-16 | Elektronische Programmsteuereinrichtung für eine Kamera |
| DE19742463393 Expired DE2463393C2 (enrdf_load_stackoverflow) | 1973-07-16 | 1974-07-16 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2434152A Expired DE2434152C2 (de) | 1973-07-16 | 1974-07-16 | Elektronische Programmsteuereinrichtung für eine Kamera |
| DE19742463393 Expired DE2463393C2 (enrdf_load_stackoverflow) | 1973-07-16 | 1974-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| DE (3) | DE2463382C2 (enrdf_load_stackoverflow) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028712A (en) * | 1974-11-27 | 1977-06-07 | Kanon Kabushiki Kaisha | Display system for photographic camera |
| DE2553695C2 (de) * | 1974-11-30 | 1985-08-29 | Canon K.K., Tokio/Tokyo | Kamera mit automatischer Belichtungssteuerung |
| JPS5184437U (enrdf_load_stackoverflow) * | 1974-12-26 | 1976-07-07 | ||
| JPS5177229A (enrdf_load_stackoverflow) * | 1974-12-26 | 1976-07-05 | Asahi Optical Co Ltd | |
| JPS5177286A (en) * | 1974-12-26 | 1976-07-05 | Asahi Optical Co Ltd | Roshutsuseigyosochi |
| JPS5199517A (enrdf_load_stackoverflow) * | 1975-02-28 | 1976-09-02 | Canon Kk | |
| JPS51121328A (en) * | 1975-04-16 | 1976-10-23 | Canon Inc | Photograph data desplay device for camera |
| US4079387A (en) * | 1975-05-27 | 1978-03-14 | Canon Kabushiki Kaisha | Counter circuit for a camera |
| US4167312A (en) * | 1975-06-24 | 1979-09-11 | Canon Kabushiki Kaisha | Exposure control circuit for a camera |
| JPS5842451B2 (ja) * | 1975-07-29 | 1983-09-20 | 日本電気株式会社 | ロシユツキコウオセイギヨスルデ−タオ デイジタルサンシユツスルカイロ |
| JPS5258529A (en) * | 1975-11-08 | 1977-05-14 | Canon Inc | Camera system |
| FR2364479A1 (fr) * | 1976-09-09 | 1978-04-07 | Canon Kk | Camera cinematographique automatique |
| US4286849A (en) * | 1978-02-09 | 1981-09-01 | Canon Kabushiki Kaisha | Digital camera |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2031978A1 (de) * | 1969-06-30 | 1971-01-28 | Polaroid Corp Cambridge, Mass (V St A) | Belichtungsregeleinrichtung fur photo graphische Kameras oder dergl |
| DE2133212A1 (de) * | 1970-07-03 | 1972-01-05 | Nippon Kogaku Kk | Kamera mit automatischer Steuereinrichtung fuer die Belichtung |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3094051A (en) | 1961-12-28 | 1963-06-18 | Eastman Kodak Co | Photographic exposure control system |
| DE1522215A1 (de) * | 1966-03-12 | 1969-08-14 | Prontor Werk Gauthier Gmbh | Photo?ashische Kamera mit selbsttaetiger,lichtabhaengiger Belichtungseinstellung |
| DE2141943A1 (de) * | 1970-08-24 | 1972-03-02 | Kabushiki Kaisha Koparu, Tokio | Elektronischer Verschluß für photo grafische Kameras |
| US3748979A (en) * | 1970-12-28 | 1973-07-31 | Copal Co Ltd | Electronic shutter apparatus for cameras |
| DE2240920C3 (de) | 1972-08-19 | 1980-01-03 | Rollei-Werke Franke & Heidecke, 3300 Braunschweig | Fotografische Kamera mit einer Programmsteuereinrichtung |
-
1974
- 1974-07-16 DE DE2463382A patent/DE2463382C2/de not_active Expired
- 1974-07-16 DE DE2434152A patent/DE2434152C2/de not_active Expired
- 1974-07-16 DE DE19742463393 patent/DE2463393C2/de not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2031978A1 (de) * | 1969-06-30 | 1971-01-28 | Polaroid Corp Cambridge, Mass (V St A) | Belichtungsregeleinrichtung fur photo graphische Kameras oder dergl |
| DE2133212A1 (de) * | 1970-07-03 | 1972-01-05 | Nippon Kogaku Kk | Kamera mit automatischer Steuereinrichtung fuer die Belichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2434152C2 (de) | 1984-07-12 |
| DE2463393C2 (enrdf_load_stackoverflow) | 1987-11-19 |
| DE2434152A1 (de) | 1975-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 2434152 |
|
| 8110 | Request for examination paragraph 44 | ||
| 8181 | Inventor (new situation) |
Free format text: SHINODA, NOBUHIRO, TOKYO, JP ITO, TADASHI, YOKOHAMA, KANAGAWA, JP NAKAMOTO, SOICHI, MACHIDA, TOKYO,JP ITO, FUMIO, YOKOHAMA, KANAGAWA, JP |
|
| AC | Divided out of |
Ref country code: DE Ref document number: 2434152 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |