Television – Camera – system and detail – Optics
Reexamination Certificate
2007-08-07
2009-10-27
Chan, Jason (Department: 2622)
Television
Camera, system and detail
Optics
C348S340000, C348S372000
Reexamination Certificate
active
07609314
ABSTRACT:
An image pickup apparatus which is capable of removing foreign substance, such as dust, attached to an optical member disposed in front of an image pickup element, even when accessories are exchanged in a power-off state of the image pickup apparatus. The type or state of an accessory mounted on the image pickup apparatus, which is detected immediately before a power-off of the image pickup apparatus are stored. When a type or state of a mounted accessory, which is detected immediately after the power-on, is different from the stored type or state of the accessory mounted on the image pickup apparatus, an operation for removing foreign substance attached to the optical member is carried out.
REFERENCES:
patent: 6940554 (2005-09-01), Robins et al.
patent: 7339623 (2008-03-01), Kawai
patent: 7355649 (2008-04-01), Takai
patent: 7492408 (2009-02-01), Ito
patent: 2002-204379 (2002-07-01), None
patent: 2003-330082 (2003-11-01), None
Canon Kabushiki Kaisha
Chan Jason
Prabhakher Pritham
Rossi Kimms & McDowell LLP
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