FR2409530A1 - Dispositif d'avertissement pour un appareil photographique a mise au point automatique - Google Patents
Dispositif d'avertissement pour un appareil photographique a mise au point automatiqueInfo
- Publication number
- FR2409530A1 FR2409530A1 FR7832264A FR7832264A FR2409530A1 FR 2409530 A1 FR2409530 A1 FR 2409530A1 FR 7832264 A FR7832264 A FR 7832264A FR 7832264 A FR7832264 A FR 7832264A FR 2409530 A1 FR2409530 A1 FR 2409530A1
- Authority
- FR
- France
- Prior art keywords
- warning device
- automatic focus
- focus camera
- automatic
- trigger
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/30—Systems for automatic generation of focusing signals using parallactic triangle with a base line
-
- 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
- G03B7/081—Analogue circuits
- G03B7/083—Analogue circuits for control of exposure time
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Shutters For Cameras (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Abstract
L'INVENTION CONCERNE LA PHOTOGRAPHIE. UN DISPOSITIF D'AVERTISSEMENT POUR UN APPAREIL PHOTOGRAPHIQUE A MISE AU POINT AUTOMATIQUE COMPORTE NOTAMMENT UN LEVIER DE RETENUE16 DONT LA POSITION EST COMMANDEE PAR UN ELECTRO-AIMANTM2. LORSQUE LES CONDITIONS D'ECLAIRAGE DE L'OBJET A PHOTOGRAPHIER RENDENT IMPOSSIBLE LA MISE AU POINT AUTOMATIQUE, LE LEVIER DE RETENUE16 PEUT PENETRER DANS L'UNE DES ENCOCHES 12A, 12B D'UNE PLAQUE DE DECLENCHEMENT12, CE QUI BLOQUE CETTE PLAQUE ET EMPECHE LE DECLENCHEMENT DE L'OBTURATEUR. APPLICATION AUX APPAREILS PHOTOGRAPHIQUES AUTOMATIQUES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13873477A JPS5471631A (en) | 1977-11-18 | 1977-11-18 | Device for warning automatic focusing control camera |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2409530A1 true FR2409530A1 (fr) | 1979-06-15 |
Family
ID=15228911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7832264A Pending FR2409530A1 (fr) | 1977-11-18 | 1978-11-15 | Dispositif d'avertissement pour un appareil photographique a mise au point automatique |
Country Status (5)
Country | Link |
---|---|
US (1) | US4304475A (fr) |
JP (1) | JPS5471631A (fr) |
DE (1) | DE2849799A1 (fr) |
FR (1) | FR2409530A1 (fr) |
GB (1) | GB2010504B (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5622522U (fr) * | 1979-07-25 | 1981-02-28 | ||
JPS57192936A (en) * | 1981-05-25 | 1982-11-27 | Canon Inc | Photographing inhibiting device for camera |
US4571051A (en) * | 1984-02-06 | 1986-02-18 | Nippon Kogaku K.K. | Display device of a camera |
US4690530A (en) * | 1984-11-26 | 1987-09-01 | Minolta Camera Kabushiki Kaisha | Camera with release control and automatic film sensitivity setting |
US4754296A (en) * | 1985-11-21 | 1988-06-28 | Polaroid Corporation | Method of and apparatus for displaying alphanumeric range in camera viewfinder |
JP2526572B2 (ja) * | 1987-03-20 | 1996-08-21 | 株式会社精工舎 | カメラ用電源回路 |
JPH042535Y2 (fr) * | 1989-09-01 | 1992-01-28 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925792A (en) * | 1974-06-17 | 1975-12-09 | Eastman Kodak Co | Battery test apparatus for use in a photographic camera |
DE2612743A1 (de) * | 1975-03-27 | 1976-09-30 | Fuji Photo Optical Co Ltd | Warnsystem fuer eine kamera |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3442193A (en) * | 1966-05-31 | 1969-05-06 | Eastman Kodak Co | Automatic focusing system |
DE1522162C3 (de) * | 1966-12-06 | 1975-08-21 | Ernst Leitz Gmbh, 6330 Wetzlar | Verfahren zur Entfernungseinstellung von photographischen Objektiven |
US3605590A (en) * | 1968-12-20 | 1971-09-20 | Kiyoshi Kitai | Electronic shutter for automatic exposure control |
JPS542665Y2 (fr) * | 1973-04-11 | 1979-02-05 | ||
JPS6027004B2 (ja) * | 1973-08-17 | 1985-06-26 | セイコ−光機株式会社 | 警告ロツク装置を有する電気シヤツタ |
JPS5319054Y2 (fr) * | 1973-10-11 | 1978-05-20 | ||
JPS568335B2 (fr) * | 1973-12-31 | 1981-02-23 |
-
1977
- 1977-11-18 JP JP13873477A patent/JPS5471631A/ja active Pending
-
1978
- 1978-11-09 GB GB7843788A patent/GB2010504B/en not_active Expired
- 1978-11-15 FR FR7832264A patent/FR2409530A1/fr active Pending
- 1978-11-16 DE DE19782849799 patent/DE2849799A1/de not_active Withdrawn
-
1980
- 1980-06-30 US US06/164,578 patent/US4304475A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925792A (en) * | 1974-06-17 | 1975-12-09 | Eastman Kodak Co | Battery test apparatus for use in a photographic camera |
DE2612743A1 (de) * | 1975-03-27 | 1976-09-30 | Fuji Photo Optical Co Ltd | Warnsystem fuer eine kamera |
Also Published As
Publication number | Publication date |
---|---|
GB2010504A (en) | 1979-06-27 |
DE2849799A1 (de) | 1979-05-23 |
JPS5471631A (en) | 1979-06-08 |
US4304475A (en) | 1981-12-08 |
GB2010504B (en) | 1982-06-23 |
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