Automatic focusing device for video camera

Details Automatic focusing device for video camera Automatic focusing device for video camera

1982-09-30

1985-12-10

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

352140, 354400, H04N 928

Patent

active

045583676

ABSTRACT:
An automatic focusing device for video camera in which the distance between a lens mounting section of a camera body and the imaging plane of an imaging unit is varied for focusing by moving at least either a lens mounting section or the imaging plane along the optical axis. The device comprises focus detector for receiving the data about an object through a light splitter and driving circuit for varying the distance between lens mounting section and imaging plane according to the output of the focus detector.

REFERENCES:
patent: 4041505 (1977-08-01), Hartmann
patent: 4382665 (1983-05-01), Eguchi
patent: 4414575 (1983-11-01), Yamamoto
patent: 4422097 (1983-12-01), Injiya

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