Optical: systems and elements – Lens
Patent
1993-06-01
1995-02-07
Sugarman, Scott J.
Optical: systems and elements
Lens
52101, 359507, 362257, G02B 300
Patent
active
053880021
ABSTRACT:
A bird resistant lens for preventing a light from becoming fouled and obscured by bird droppings. The lens is provided with an unstable wobble member mounted to the lens by a spring. The spring supports the wobble member in such an manner so as to provide an area that a bird cannot perch upon. The wobble member includes a gutter and drain holes to channel water over the lens and further includes light dispersing ridges to improve the light's visibility.
REFERENCES:
patent: 4498733 (1985-02-01), Flanagan
Hogg Daniel L.
Smith Thomas V.
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