Photography – Camera detail – Lens mount
Reexamination Certificate
2005-06-28
2005-06-28
Perkey, W. B. (Department: 2851)
Photography
Camera detail
Lens mount
C396S535000, C348S360000, C348S376000
Reexamination Certificate
active
06910814
ABSTRACT:
The present digital camera system includes a camera body and an interchangeable lens barrel. The camera body contains an image pickup device with an imaging range Ri, and the interchangeable lens barrel is removably attached to the camera body. The mount opening portions of the interchangeable lens barrel and camera body includes openings equal to or larger than a square opening range Rm formed by connecting ends of segments Sd tilted outwardly from the four corners of an imaging range Ri diagonally to the outside by 12 degrees to 14 degrees and extended to a flange back FB position. The circumscribed circle diameter Dm of the mount opening portion is 1.8 times or larger of the circumscribed circle diameter Di of the imaging range Ri. The digital camera system can provide an interchangeable lens and digital camera body reducible in size without deterioration in amount of peripheral light.
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Kawai Sumio
Ogata Yasuzi
Olympus Corporation
Perkey W. B.
Volpe and Koenig P.C.
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