FR2393336B1 - - Google Patents
Info
- Publication number
- FR2393336B1 FR2393336B1 FR7816263A FR7816263A FR2393336B1 FR 2393336 B1 FR2393336 B1 FR 2393336B1 FR 7816263 A FR7816263 A FR 7816263A FR 7816263 A FR7816263 A FR 7816263A FR 2393336 B1 FR2393336 B1 FR 2393336B1
- Authority
- FR
- France
- 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
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Control For Cameras (AREA)
- Shutters For Cameras (AREA)
- Stroboscope Apparatuses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/801,477 US4104653A (en) | 1977-05-31 | 1977-05-31 | Scanning shutter blade arrangement with ambient and flash ranges |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2393336A1 FR2393336A1 (fr) | 1978-12-29 |
FR2393336B1 true FR2393336B1 (fr) | 1984-12-14 |
Family
ID=25181209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7816263A Granted FR2393336A1 (fr) | 1977-05-31 | 1978-05-31 | Systeme de commande d'exposition pour un appareil de prise de vues photographiques |
Country Status (6)
Country | Link |
---|---|
US (1) | US4104653A (fr) |
JP (1) | JPS5916254B2 (fr) |
CA (1) | CA1105757A (fr) |
DE (1) | DE2823636C2 (fr) |
FR (1) | FR2393336A1 (fr) |
GB (1) | GB1596087A (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4191462A (en) * | 1978-04-24 | 1980-03-04 | Polaroid Corporation | Fixed focus exposure control apparatus with reverse spherical aberration corrective characteristic |
US4255030A (en) * | 1979-09-13 | 1981-03-10 | Polaroid Corporation | Camera with proportional fill flash quench strobe |
US4358186A (en) * | 1979-12-31 | 1982-11-09 | Polaroid Corporation | Method and apparatus for controlling exposure by selective use of blocking visible filter |
US4351593A (en) * | 1979-12-31 | 1982-09-28 | Polaroid Corporation | Method and apparatus for selective positioning of spectral filter during exposure control |
US4315675A (en) * | 1979-12-31 | 1982-02-16 | Polaroid Corporation | Method and apparatus for selectively positioning spectral filter |
US4491406A (en) * | 1979-12-31 | 1985-01-01 | Polaroid Corporation | Method and apparatus employing dual photocells for removing spectral filter during strobe pulse |
US4325616A (en) * | 1980-01-10 | 1982-04-20 | Polaroid Corporation | Apparatus for varying the spectral filter over the photocell as a function of blade position |
US4474441A (en) * | 1980-03-04 | 1984-10-02 | Polaroid Corporation | Method and apparatus for controlling exposure by selective use of blocking visible filter |
US4297016A (en) * | 1980-07-07 | 1981-10-27 | Polaroid Corporation | Scanning shutter blade arrangement with dynamic apertures for ambient and flash exposures |
US4542973A (en) * | 1980-10-06 | 1985-09-24 | Polaroid Corporation | Dynamically controlled scene radiation leakage for exposure control |
US4444479A (en) * | 1981-01-05 | 1984-04-24 | Polaroid Corporation | Photographic system with slow burn flash bulb |
US4410250A (en) * | 1981-04-03 | 1983-10-18 | Vivitar Corporation | Flash adapater and system |
US4431286A (en) * | 1981-10-13 | 1984-02-14 | Polaroid Corporation | Photographic exposure control system having selectable ambient and flash modes |
JPS61203431A (ja) * | 1985-03-05 | 1986-09-09 | Asahi Optical Co Ltd | 自動焦点式カメラ |
US4797700A (en) * | 1985-06-28 | 1989-01-10 | Canon Kabushiki Kaisha | Diaphragm device |
JP2525804B2 (ja) * | 1987-04-15 | 1996-08-21 | コニカ株式会社 | 露出調節機構を有するスチルビデオカメラ |
US8275091B2 (en) | 2002-07-23 | 2012-09-25 | Rapiscan Systems, Inc. | Compact mobile cargo scanning system |
GB0803644D0 (en) | 2008-02-28 | 2008-04-02 | Rapiscan Security Products Inc | Scanning systems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3318215A (en) * | 1966-03-23 | 1967-05-09 | Agfa Ag | Flash-exposure structure for cameras |
DE2163294C3 (de) * | 1970-12-24 | 1981-06-11 | Polaroid Corp., 02139 Cambridge, Mass. | Photographischer Apparat |
US3750543A (en) * | 1971-04-19 | 1973-08-07 | Polaroid Corp | Focus responsive exposure control system |
JPS492527A (fr) * | 1972-04-18 | 1974-01-10 | ||
GB1450633A (en) * | 1973-07-05 | 1976-09-22 | Polaroid Corp | Exposure control system |
US3942183A (en) * | 1974-07-02 | 1976-03-02 | Polaroid Corporation | Camera with pivoting blades |
US3972058A (en) * | 1975-03-03 | 1976-07-27 | Polaroid Corporation | Follow focus intercept actuating system for photographic apparatus |
US3972057A (en) * | 1975-03-03 | 1976-07-27 | Polaroid Corporation | Exposure control system with follow focus capability |
US4023187A (en) * | 1975-10-03 | 1977-05-10 | Polaroid Corporation | Exposure control system with fill flash race condition |
-
1977
- 1977-05-31 US US05/801,477 patent/US4104653A/en not_active Expired - Lifetime
-
1978
- 1978-05-23 GB GB21579/78A patent/GB1596087A/en not_active Expired
- 1978-05-29 JP JP53064198A patent/JPS5916254B2/ja not_active Expired
- 1978-05-30 DE DE2823636A patent/DE2823636C2/de not_active Expired
- 1978-05-30 CA CA304,424A patent/CA1105757A/fr not_active Expired
- 1978-05-31 FR FR7816263A patent/FR2393336A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2823636A1 (de) | 1978-12-07 |
JPS5916254B2 (ja) | 1984-04-14 |
FR2393336A1 (fr) | 1978-12-29 |
GB1596087A (en) | 1981-08-19 |
JPS542121A (en) | 1979-01-09 |
DE2823636C2 (de) | 1983-02-24 |
CA1105757A (fr) | 1981-07-28 |
US4104653A (en) | 1978-08-01 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |