Camera lens shield

Details Camera lens shield Camera lens shield

1993-06-01

1994-05-24

Gray, David M.

Optical: systems and elements

Prism

With reflecting surface

359508, G03B 1700

Patent

active

053153332

ABSTRACT:
Apparatus to spin a glass window in front of a camera lens so as to centrifugally throw off water and dirt. The window rotates in a pair of parallel bearing races at its circumference. Impeller blades between the bearing races spin with the window to force air through the bearings and prevent entry of contamination into the bearing races. The apparatus is mounted directly to the camera to isolate the lens from gyroscopic and vibrational forces.

REFERENCES:
patent: 1153945 (1915-09-01), Mustin
patent: 1304548 (1919-05-01), DeNormanville
patent: 2298063 (1942-10-01), MacPherson
patent: 3942863 (1976-03-01), Schuwerk
patent: 4414576 (1983-11-01), Randmae

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