Automatic focus adjusting device

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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Details

358227, G03B 300, H04N 538

Patent

active

045926387

ABSTRACT:
The disclosed automatic focus adjusting device includes both an active type range finder and a passive type range finder. A selecting arrangement responds to a signal representing the position of a focusing lens and causes operation of either the first or the second range finder. Preferably, the active type range finder is operative when the system is actuated.

REFERENCES:
patent: 3617633 (1971-11-01), Barr et al.
patent: 3813679 (1974-05-01), Hasegawa et al.
patent: 4410261 (1983-10-01), Masunaga et al.
patent: 4464038 (1984-08-01), Namba et al.

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