Automatic focus adjustment device

Details Automatic focus adjustment device Automatic focus adjustment device

1996-11-21

1998-03-10

Perky, W. B.

Photography

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

Reliability of focus/distance signal

396128, G03B 1336

Patent

active

057272387

ABSTRACT:
An automatic focus adjustment device is provided that includes a focus detector that detects focus data of a photographic lens, a storage device that stores the focus data, and a focus adjustment device that performs focus adjustment of the photographic lens, based on the focus data stored in the storage device. The automatic focus adjustment device further includes a selection device that selects whether to store focus data in the storage device based on one of a length of a focus data detection interval in the focus detector; a size of a change in focus data in the focus detector; and reliability data detected by an identification device.

REFERENCES:
patent: 5061951 (1991-10-01), Higashihara et al.
patent: 5469240 (1995-11-01), Uchiyama et al.
patent: 5628036 (1997-05-01), Ozawa et al.

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