Apparatus for delivering distance information of camera

Details Apparatus for delivering distance information of camera Apparatus for delivering distance information of camera

1986-11-25

1988-05-10

Adams, Russell E.

354286, 354402, G03B 300

Patent

active

047439319

ABSTRACT:
Apparatus for delivering distance information of a camera includes counter means which counts a relative distance corresponding to a movement of a taking lens. The counter means is reset when the taking lens reaches a reference position located at infinity. Using stored data (absolute distance factors) which is specific to a taking lens and the count in the counter means, an absolute distance is derived.

REFERENCES:
patent: 4238143 (1980-12-01), Shenk
patent: 4239354 (1980-12-01), Shenk
patent: 4348089 (1982-09-01), Shenk
patent: 4508443 (1985-04-01), Matsuzaki et al.
patent: 4537487 (1985-08-01), Taniguchi et al.
patent: 4557557 (1985-12-01), Shinoda
patent: 4613224 (1986-09-01), Ogasawara

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