Video camera focusing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 1991
Grant Date -
N/A
app pub date -
Aug 21, 1989
filing date -
Aug 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To focus the video camera, the CCD image pickup device moves relative to the lens mount which is maintained fixed in relation to the camera body. The lens mount includes a cylindrical bearing surface on which symmetrically spaced carrier bearings slide when a focusing ring is turned. Cam followers connected to the carrier ride on ramps incorporated in the focusing ring. When the focusing ring rotates, the cam followers slide along the moving ramp surfaces and cause corresponding motion of the CCD pickup device.
First Claim
Family
International Classification(s)
Cited Art Landscape
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