Image pickup apparatus

Details Image pickup apparatus Image pickup apparatus

1995-06-14

1997-01-14

Peng, John K.

Television

Camera, system and detail

Optics

348347, H04N 5232

Patent

active

055945007

ABSTRACT:
An image pickup apparatus, which includes an eye point sensor for detecting an eye point in a frame, a calculation circuit for calculating average coordinates of the eye point in the frame detected by the eye point sensor, a setting circuit for setting a distance measurement frame at the average coordinates output from the calculation circuit, and a control circuit for controlling the size of the distance measurement frame according to the focal length, is disclosed.
An image pickup apparatus, which includes a focus calculation circuit for detecting a focus state by detecting the dispersion range of an eye point, is also disclosed.

REFERENCES:
patent: 4034401 (1977-07-01), Mann
patent: 4075657 (1978-02-01), Weinblatt
patent: 4109145 (1978-08-01), Graf
patent: 4209255 (1980-06-01), Heynau et al.
patent: 4574314 (1986-03-01), Weinblatt
patent: 4872058 (1989-10-01), Baba et al.
patent: 5016282 (1991-05-01), Tomono et al.
patent: 5182443 (1993-01-01), Suda et al.

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