Distance detector

Details Distance detector Distance detector

1998-11-19

2000-10-03

Perkey, W. B.

Photography

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

Plural focusing or rangefinding areas

356 314, G03B 1336, G01C 308

Patent

active

061284459

ABSTRACT:
A distance detector has an optical system, a distance sensor, and a distance calculating circuit. The optical system forms an image of a subject. The distance sensor has at least three line sensors that are disposed substantially on the imaging plane of the optical system and are arranged at partially uneven intervals. The distance calculating circuit calculates the distance to the subject in accordance with the output from the distance sensor.

REFERENCES:
patent: 4910548 (1990-03-01), Taniguchi et al.
patent: 5597999 (1997-01-01), Kinba et al.
patent: 5692222 (1997-11-01), Yamada et al.
patent: 5731864 (1998-03-01), Hamada et al.

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