TV Camera with focus detecting means

Details TV Camera with focus detecting means TV Camera with focus detecting means

1979-11-27

1981-11-17

Bookbinder, Marc E.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358225, H04N 326

Patent

active

043014780

ABSTRACT:
In the disclosed TV camera, a focus detecting device detects the focus of the image optical system by evaluating the image of the object whose image is to be picked up, on the basis of the picture image signal obtained at a predetermined position in the image pick up surface of the image pick up device. At least a part of the image to be evaluated is formed at a position within the scanning area of the image pick up device but outside of the effective image pick up area for TV signals. The image is evaluated on the basis of the picture image signal obtained at this position to detect the focus.

REFERENCES:
patent: 3708619 (1973-01-01), Martin
patent: 3883689 (1975-05-01), Mansour
patent: 3967056 (1976-06-01), Yata

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