Automatic focusing apparatus for use in video camera and the lik

Details Automatic focusing apparatus for use in video camera and the lik Automatic focusing apparatus for use in video camera and the lik

1988-02-03

1989-06-27

Arnold, Bruce Y.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

354404, 358227, G02B 704

Patent

active

048423874

ABSTRACT:
An automatic focusing apparatus for use in a video camera and the like wherein one optical element other than a focusing lens means of an optical system is moved for focusing in the in-focus direction while being vibrated slightly by means of a motor capable of being driven by pulses.

REFERENCES:
patent: 3950764 (1976-04-01), Hosoe et al.
patent: 3953729 (1976-04-01), Hosoe et al.
patent: 3961178 (1976-06-01), Hosoe et al.
patent: 4161756 (1979-07-01), Thomas
patent: 4611244 (1986-09-01), Hanma et al.
National Technical Report vol. 31, No. 6, Dec. 1985, pp. 65-67.

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