Illumination – Self powered lamp – Rechargeable electrical source of with external connections
Patent
1989-08-11
1991-11-12
Husar, Stephen F.
Illumination
Self powered lamp
Rechargeable electrical source of with external connections
362431, 362 31, 362800, 362145, 136291, F21L 700
Patent
active
050652915
ABSTRACT:
A self-contained solar powered marking light. The marking light may be utilized to delineate certain predetermined boundaries without effectively illuminating the areas. The marking light automatically illuminates when output power from the photovoltaic cells contained therein fall below a predetermined level and automatically extinguishes when the voltage from the photovoltaic cells reaches a predetermined level. The marking light includes a lens which is closely coupled to a source of light and which includes a textured surface for diffusing the light to cause the lens to appear to glow when the source of light is illuminated. An electrical circuit is coupled between the photovoltaic cells and a battery and includes the source of light and switching means for automatically illuminating the light dependent upon the relative relationship between the voltage of the photovoltaic cells and the battery voltage.
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Joan Cook Gift Catalog, Apr., 1987, p. 15, Advertising a Solar Powered Garden Light.
Boyer Brent P.
Erickson Mark R.
Frost John S.
Seegan Kimberly E.
Atlantic Richfield Company
Cox D. M.
Husar Stephen F.
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