Multipoint autofocus system

Details Multipoint autofocus system Multipoint autofocus system

2006-01-17

2006-01-17

Tran, Thai (Department: 2612)

Television

Camera, system and detail

Optics

C396S096000, C250S208200, C250S201100, C250S201200, C257S213000

Reexamination Certificate

active

06987538

ABSTRACT:
In a multipoint autofocus system in which a focus state of objects at different positions in a plurality of focus detection zones in an image surface is detected, and thereafter, one of pieces of information on the focus state thus detected is selected, so that a focusing optical system is moved in accordance with the selected focus data, provision is made of a judging apparatus for judging the contrast of the detected object in the focus detection zones, and a controller for selecting data representing the shortest focus from among the focus data of the objects in the focus detection zones in which the judged object contrast is higher than a predetermined value.

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