Television – Special applications – Combined electronic sensing and photographic film cameras
Patent
1994-04-29
1996-08-13
Gray, David M.
Television
Special applications
Combined electronic sensing and photographic film cameras
348371, 354 75, 354 76, 354129, G03B 2900, G03B 1502
Patent
active
055461212
ABSTRACT:
A picture-taking system includes a film camera for capturing a photographic image of a subject on photosensitive film, and a video camera having a solid-state electronic image sensing device 12, for outputting a video signal representing the photographic image of the subject. Essentially the same photographic image of the subject is photographed by both the film camera and the video camera under a single strobe flash generated by a strobe light-emission device 40. To achieve this synchronized photography and simplify the synchronized photography control system, it is arranged so that the video camera responds to a photographic trigger signal from a shutter switch by generating, and applying to the film camera, a shutter release signal the vertical synchronizing signal of the video camera as a reference. The shutter of the film camera starts opening in response to the shutter release signal. Upon passage of a fixed time up to the moment at which the shutter is opened fully, the video camera generates an electronic-shutter control signal using its vertical synchronizing signal as a reference and initiates exposure of the solid-state electronic image sensing device. Immediately thereafter, the video camera applies a strobe fire-permitting signal to the strobe light-emission device to fire a strobe flash.
REFERENCES:
patent: 4805037 (1989-02-01), Noble et al.
patent: 4920371 (1990-04-01), Kaneko
patent: 5006871 (1991-04-01), Noble
patent: 5008697 (1991-04-01), Noble
patent: 5307168 (1994-04-01), Tashiro
patent: 5389984 (1995-02-01), Lovenheim
Arai Minoru
Gotanda Yoshiharu
Miyake Izumi
Chapik Daniel
Fuji Photo Film Co. , Ltd.
Gray David M.
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