Photography – Camera detail – Lens mount
Reexamination Certificate
2006-10-10
2006-10-10
Perkey, W. B. (Department: 2851)
Photography
Camera detail
Lens mount
Reexamination Certificate
active
07118295
ABSTRACT:
An interchangeable lens is disclosed which prevents the camera body and interchangeable lens from being damaged even if an attempt is made to erroneously mount therebetween. The interchangeable lens is a second interchangeable lens whose flange back is the same as that of a first interchangeable lens and includes a protruding portion protruding from a mount reference surface. The protruding amount of the protruding portion is set when the second interchangeable lens has a specific phase relationship with a first camera, so that the protruding portion contacts a first wall portion of the first camera, and is set when the second interchangeable lens has a phase relationship with the first camera other than the specific phase relationship and a bayonet lug of the second interchangeable lens contacts a bayonet lug of the first camera, so that the protruding portion is away from the first wall portion.
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Koyama Atsushi
Sugita Jun
Tamura Masahisa
Canon Kabushiki Kaisha
Cowan Liebowitz & Latman P.C.
Perkey W. B.
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