Photography – With exposure objective focusing means – focusing aid – or... – Ambient light compensating
Patent
1996-06-07
1998-04-07
Pham, Hoa Q.
Photography
With exposure objective focusing means, focusing aid, or...
Ambient light compensating
396104, 396106, G03B 1336
Patent
active
057376450
ABSTRACT:
A distance measuring apparatus uses both active and passive distance measuring methods. A preferable distance measuring method is selected based upon the luminance of the field and the distance to the object unless a focus lock switch is switched. When the focus lock switch is switched, then a distance measurement using the active distance measuring method is selected.
REFERENCES:
patent: 4518242 (1985-05-01), Toyama
patent: 4592638 (1986-06-01), Kaneda et al.
patent: 4777504 (1988-10-01), Akada et al.
patent: 5537180 (1996-07-01), Matsumoto et al.
patent: 5589910 (1996-12-01), Saito et al.
patent: 5652926 (1997-07-01), Saito
patent: 5655160 (1997-08-01), Saito
Fuji Photo Optical Co., Ltd.
Pham Hoa Q.
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