Lens for low light level lamp

Details Lens for low light level lamp Lens for low light level lamp

1989-08-11

1990-12-04

Lazarus, Ira S.

Illumination

Light modifier

Refractor

362362, F21V 500

Patent

active

049758160

ABSTRACT:
A lens for use in a stand alone lamp utilizing low wattage light bulbs. The lamp is powered through the utilization of photovoltaic cells which charge a battery which then provides power to the bulb in the absence of the sun. The lens is constructed of a hollow body having horizontally disposed ribs formed on the exterior surface thereof with a clear, unobstructed lower portion closing the bottom of the lens.

REFERENCES:
patent: 1588222 (1926-06-01), D'Olier, Jr.
patent: 1778305 (1930-10-01), Blau
patent: 3015720 (1962-01-01), Silverman
patent: 3197631 (1965-07-01), Jensen
patent: 3805055 (1974-04-01), Cassey
patent: 4175661 (1979-11-01), Barnes
patent: 4254405 (1981-03-01), Wenzlaff
patent: 4827389 (1989-05-01), Crum

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