Auto-focus camera

Details Auto-focus camera Auto-focus camera

1996-06-28

1999-04-20

Adams, Russell E.

Photography

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

Focus lock

396131, 396137, G03B 310

Patent

active

058951300

ABSTRACT:
An auto-focus camera performs a focusing and a photometry when a shutter button is half depressed in an auto-focus mode. In this case, when an MF button is depressed, a result value of the focusing is held as long as the MF button is depressed even if the shutter button is released. When the shutter button is depressed again, only the photometry is performed. On the other hand, when the MF button is depressed in a manual focus mode, an object distance can be set by an UP/DOWN dial which is also used for setting various kinds of photographing items. The MF button is used for maintaining an AF lock, and is used for instructing the setting of the object distance in the manual-focus mode.

REFERENCES:
patent: 4300823 (1981-11-01), Yamanaka et al.
patent: 4470680 (1984-09-01), Inagaki
patent: 4474447 (1984-10-01), Kawabata et al.
patent: 4750013 (1988-06-01), Yasukawa
patent: 4933701 (1990-06-01), Matsuyama

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