Television – Camera – system and detail – Optics
Reexamination Certificate
2005-11-21
2008-12-30
Ho, Tuan V (Department: 2622)
Television
Camera, system and detail
Optics
C348S360000
Reexamination Certificate
active
07471331
ABSTRACT:
This invention discloses an optical apparatus including an image pickup optical unit, a light quantity adjustment unit inserted in the optical axis of the image pickup optical unit, the light quantity adjustment unit changing the aperture diameter to change the light quantity, and a controller for controlling a change of the aperture diameter by the light quantity adjustment unit. The controller changes the set value for the minimum aperture diameter of the aperture diameter of the light quantity adjustment unit in accordance with the form of the image pickup device of the image pickup apparatus on which the lens apparatus is mounted.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Ho Tuan V
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