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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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Filing date
Publication date
Application filed by Bell and Howell CofiledCriticalBell and Howell Co
Application grantedgrantedCritical
Publication of FR1195959ApublicationCriticalpatent/FR1195959A/fr
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
G03B7/099—Arrangement of photoelectric elements in or on the camera
G03B7/0993—Arrangement of photoelectric elements in or on the camera in the camera
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Photometry And Measurement Of Optical Pulse Characteristics
(AREA)
Exposure Control For Cameras
(AREA)
FR1195959D1958-02-211958-05-16Dispositif de réglage automatique d'exposition pour des cameras
ExpiredFR1195959A
(fr)