Video camera focusing system

Details Video camera focusing system Video camera focusing system

1989-08-21

1991-07-16

Peng, John K.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358225, 358229, H04N 5232

Patent

active

050329197

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.

REFERENCES:
patent: 2380829 (1945-07-01), Eddy
patent: 4369470 (1983-01-01), Contant
patent: 4413278 (1983-11-01), Feinbloom
patent: 4600938 (1986-07-01), Sluyter et al.
patent: 4600939 (1986-07-01), Sluyter et al.
patent: 4764783 (1988-08-01), Tanaka

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