Distance measuring apparatus

Details Distance measuring apparatus Distance measuring apparatus

1996-06-07

1997-08-05

Perkey, W. B.

Photography

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

Having auxiliary illumination

G03B 1316

Patent

active

056551606

ABSTRACT:
There is provided a distance measuring apparatus capable of avoiding a situation in which the distance measurement time is prolonged. This apparatus executes distance measurement of an active method and distance measurement of a passive method. When a determining portion detects that the distance measurement of the passive method using a large number of photodiodes exceeds a predetermined time, a distance-value selecting circuit selects the distance measurement result of the active method as a distance measurement value.

REFERENCES:
patent: 4381523 (1983-04-01), Eguchi et al.
patent: 4518242 (1985-05-01), Toyama
patent: 4592638 (1986-06-01), Kaneda et al.

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