Red eye prevent control device in an automatic focus adjustment

Details Red eye prevent control device in an automatic focus adjustment Red eye prevent control device in an automatic focus adjustment

1992-09-01

1993-08-03

Adams, Russell E.

354415, 354137, G03B 1336, G03B 1503

Patent

active

052333744

ABSTRACT:
The present invention is designed such that during flash photographing which involves pre-light emission for preventing red eye, focus adjustment is effected on the basis of focus adjustment information detected during the time from after the pre-light emission is effected until shutter release is effected and therefore, the time lag from the detection of the focus adjustment information until the shutter release can be minimized and a photo-taking lens can be reliably focused to a desired object even during flash photographing which involves the pre-light emission.

REFERENCES:
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patent: 4299464 (1981-11-01), Cushman
patent: 4305647 (1981-12-01), Ishida
patent: 4457611 (1984-07-01), Ishida et al.
patent: 4978989 (1990-12-01), Nakano et al.
patent: 4999663 (1991-03-01), Nakamura
Piper, Floyd G., psa Journal, Jul., 1952, vol. 18, No. 7A, pp. 425-426 & 444.

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