Video camera apparatus

Details Video camera apparatus Video camera apparatus

1992-08-10

1994-05-24

Adams, Russell E.

354402, 3541951, G03B 1336

Patent

active

053153405

ABSTRACT:
A lens control apparatus, which includes a lens drive section for driving a focus adjustment lens group, a lens drive controller for supplying a drive signal to the lens drive section, an automatic focus adjustment circuit for controlling the lens drive controller in an automatic focus adjustment mode, and a manual focus adjustment circuit for controlling the lens drive controller in a manual focus adjustment mode on the basis of a manual focus operation, has a selection circuit for, when a manual focus operation is performed, selecting the manual focus adjustment circuit to execute the drive control of the lens group.

REFERENCES:
patent: 4609274 (1986-09-01), Iwashita et al.
patent: 4777505 (1988-10-01), Hata et al.
patent: 4845521 (1989-07-01), Akashi
patent: 4933701 (1990-06-01), Matsuyama
patent: 4985723 (1991-01-01), Egawa et al.
patent: 5144491 (1992-09-01), Ushiro et al.
patent: 5164756 (1992-11-01), Hirasawa

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