Automatic focusing device capable of detecting panning

Details Automatic focusing device capable of detecting panning Automatic focusing device capable of detecting panning

1997-05-27

1998-08-25

Shalwala, Bipin

Television

Camera, system and detail

Optics

348353, 348365, 396 89, G03B 1300, H04N 5232, H04N 5238

Patent

active

057987939

ABSTRACT:
An automatic focusing device includes an image pickup device for outputting an image signal by performing photoelectric conversion of an image of an object, a band-pass filter for extracting a sharpness signal corresponding to the sharpness from among the image signal, a diaphragm for controlling the amount of light incident upon the image pickup device, and a control circuit for controlling prohibition of the drive of a focusing lens based on a change in the sharpness signal output from the band-pass filter and a change in the state of the diaphragm. It is thereby possible to exactly detect an operation, such as panning or the like, and to prevent the stop of the focusing lens at a defocused position caused by an erroneous operation by prohibiting the drive of the focusing lens when panning has been detected.

REFERENCES:
patent: 4531158 (1985-07-01), Murakami et al.
patent: 4672456 (1987-06-01), Murai et al.
patent: 4833541 (1989-05-01), Takuma et al.
patent: 4912493 (1990-03-01), Tanaka
patent: 4967280 (1990-10-01), Takuma et al.
patent: 5053798 (1991-10-01), Ohara et al.
patent: 5057927 (1991-10-01), Hieda
patent: 5072250 (1991-12-01), Makino
patent: 5194888 (1993-03-01), Akashi et al.
patent: 5212598 (1993-05-01), Kikuchi
patent: 5247326 (1993-09-01), Taniguchi et al.

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