Distance measuring device for a camera

Details Distance measuring device for a camera Distance measuring device for a camera

1993-03-30

1994-10-18

Perkey, W. B.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 1, G03B 1336, G01C 308

Patent

active

053573099

ABSTRACT:
A camera distance measuring device in which center, left and right peripheral beams for illuminating a subject are emitted from the center, left and right infrared-emitting diodes, respectively. First and second intermediate electrodes are provided between a pair of electrodes of a position sensitive device. An arithmetic circuit calculates center, left and right distance data from a composite output of a plurality of amplifiers delivered synchronously with each of the center, left and right peripheral beams incident on the position sensitive device.

REFERENCES:
patent: 4615616 (1986-10-01), Shiomi
patent: 4849781 (1989-07-01), Nakazawa et al.
patent: 5184168 (1993-02-01), Nonaka

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