Automatic focusing apparatus in a camera

Details Automatic focusing apparatus in a camera Automatic focusing apparatus in a camera

1998-02-23

1999-10-12

Perkey, W. B.

Photography

Having variable focal length of camera objective

Having focus operation

396104, 396257, G03B 7095, G03B 1336

Patent

active

059665505

ABSTRACT:
An automatic focusing apparatus of a camera includes a photographing lens having a focusing lens group and a focus control mechanism which moves the focusing lens group to a hyper-focal distance position when no effective object distance is obtained.

REFERENCES:
patent: 4043642 (1977-08-01), Hirose et al.
patent: 4247187 (1981-01-01), Tamura
patent: 4465352 (1984-08-01), Hirobe et al.
patent: 4697891 (1987-10-01), Kawai
patent: 4743931 (1988-05-01), Matsuzaki et al.
patent: 4953029 (1990-08-01), Morimoto et al.
patent: 4969006 (1990-11-01), Ishibashi et al.
patent: 5570155 (1996-10-01), Shibayama

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