Television – Camera – system and detail – With object or scene illumination
Patent
1997-01-22
1999-08-31
Garber, Wendy
Television
Camera, system and detail
With object or scene illumination
396155, H04N 5232
Patent
active
059460350
ABSTRACT:
A flash control method for an interline charge coupled device (CCD) camera, in which two photographic fields of an object are used to form one frame, is disclosed. The method comprises the step of storing an equation defining the relationship between a light emission amount of a flash, a flash voltage, and a light emission time for the flash. The target light emission amount is then set according to photographic conditions of the object. A first flash voltage is then measured, and a first light emission time is calculated using the stored equation according to the set target light emission amount and the measured first flash voltage. Light is then emitted for a duration corresponding to the calculated first light emission time in sync with a first period of the vertical sync signal. A second flash voltage is then measured, and a second light emission time is calculated using the stored equation according to the set target light emission amount and the measured second flash voltage. Finally, the camera emits light for a duration corresponding to the calculated second light emission time in sync with a second period of the vertical sync signal.
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Garber Wendy
Samsung Aerospace Industries Ltd.
White Mitchell L.
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