Fast switching camera aperture

Details Fast switching camera aperture Fast switching camera aperture

2008-05-06

2008-05-06

Perkey, W. B. (Department: 2862)

Photography

Camera detail

Diaphragm

C396S430000

Reexamination Certificate

active

07367723

ABSTRACT:
A camera aperture includes a first polarizer and a second polarizer with a polarization 90° with respect to the first polarizer. The second polarizer has a through hole at a center. A polarizing rotator is disposed between the first polarizer and the second polarizer. A size of the aperture is changed when a voltage is applied selectively to the polarizing rotator.

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