Autofocusing camera device

Details Autofocusing camera device Autofocusing camera device

1994-11-03

2000-10-10

Garber, Wendy

Television

Camera, system and detail

Optics

348355, 396121, H04N 5232

Patent

active

061307165

ABSTRACT:
A camera of the type having a lens drive motor for moving a focus lens, an image pick-up device for converting an optical image passed through the optical system including the focus lens into an image signal, a sampling circuit for sampling the high frequency component value of the image signal, and a control circuit for controlling the lens drive motor so as to maximize the high frequency component value. The camera has a high frequency component value memory for storing a history of the high frequency component value sampled by the sampling circuit. The control circuit controls the lens drive motor so as to maximize the high frequency component value after the focus adjustment, in accordance with the stored history of the high frequency component value.

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