Autofocus camera and method

Details Autofocus camera and method Autofocus camera and method

1995-06-19

1997-01-14

Metjahic, Safet

Photography

With exposure objective focusing means, focusing aid, or...

Having pursuit mode

396265, G03B 700

Patent

active

055949282

ABSTRACT:
An automatic focus camera conducts automatic focus when the photographic preparation sequence in continuous photography automatic focussing are not completed in a fixed time. The photographic preparation sequence includes the shutter action preparation and film supply preparation. The automatic focus camera includes a shooting lens, a photographic mode switch that selects whether or not to conduct continuous photography, a photoelectric conversion device that performs focus state detection, a driving motor that drives the shooting lens, and a microcomputer. The microcomputer predictively determines the photographic preparation sequence completion time. When the photographic mode switch is set to continuous photography, the microcomputer determines the subject image plane position at the time of the next exposure based on the focus state detection results and the predicted computation results.

REFERENCES:
patent: 4918538 (1990-04-01), Saito et al.
patent: 4974003 (1990-11-01), Ohnuki et al.
patent: 5057859 (1991-10-01), Ishimaru
patent: 5319412 (1994-06-01), Hamada et al.
patent: 5408290 (1995-04-01), Haraguchi

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