Self-cleaning apparatus for removal of foreign substances from a

Details Self-cleaning apparatus for removal of foreign substances from a Self-cleaning apparatus for removal of foreign substances from a

1991-09-26

1992-12-08

Arnold, Bruce Y.

Optical: systems and elements

Protection from moisture or foreign particle

1525002, 1525013, 152502, 15250003, 310316, 310320, 310323, 310330, 34 1G, 34 69, 318114, B60R 106, G02B 508, F26B 502

Patent

active

051702886

ABSTRACT:
An arrangement is provided for removing foreign substances from a mirror. A vibrator for vibrating the mirror includes a vibration controlling unit for supplying power to the vibrator. As the vibration controlling unit is located close to the vibrator, the length of the conductive wire which transmits the power can be minimized so as to reduce radio noise. The heat generated by the vibration control unit can be radiated sufficiently through a metallic case member and the vibration controlling unit can be disposed in the closed, small space between the mirror and the housing. Therefore, the size of the housing can be reduced so as to minimize the space which surrounds the vibration control unit. Further, the vibration control unit can be protected from contamination due to the closed case member.

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patent: 5025187 (1991-06-01), Fujie et al.
patent: 5037189 (1991-08-01), Fujie et al.

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