Camera having a red-eye forecasting and/or preventing device

Details Camera having a red-eye forecasting and/or preventing device Camera having a red-eye forecasting and/or preventing device

1989-11-21

1990-12-18

Brown, Brian W.

35414911, G03B 700

Patent

active

049789899

ABSTRACT:
A camera having a red-eye alarm device which receives a signal representative of a distance l between an object to be photographed and a camera, the focal length f of a taking lens, a signal representative of a distance d between the optical axis of the taking lens and the center of an electronic flash discharge tube, and develops an alarm signal based upon the object distance l, the focal length f and the spacing d, the red-eye alarm signal being developed when a conditional formula ##EQU1## is satisfied.

REFERENCES:
patent: 4100554 (1978-07-01), Iijima
patent: 4847647 (1989-07-01), Ueda

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