Illumination – Self powered lamp – Rechargeable electrical source of with external connections
Patent
1991-04-11
1993-06-08
Yeung, James C.
Illumination
Self powered lamp
Rechargeable electrical source of with external connections
362418, 362802, 362250, F21L 700
Patent
active
052172961
ABSTRACT:
A solar powered light adapted to be mounted under the eaves of a building, a wall or the like for use in security applications. In a preferred embodiment of the present invention, the solar powered light comprises an adjustable configuration having a lamp with an infrared detector or sensor rotatably mounted thereto and a photovoltaic or solar cell array rotatably disposed at a remote end of an extension arm movably attached to the lamp. Such a flexible arrangement allows the photovoltaic array to be positioned to receive direct sunlight. The sensor activates the solar powered light upon sensing infrared to illuminate the surrounding areas when a presence is sensed and turn it off when a presence is no longer sensed. In accordance with a second embodiment, the solar powered light does not include an infrared detector and provides continuous illumination for a given period of time. In accordance with a third embodiment, the solar powered light does not include an infrared detector, but includes a battery having a higher capacity configured to provide illumination for extended periods of time. In accordance with a fourth embodiment, the solar powered light is configured to be used directly with a user's battery. The solar powered light utilizes a compact fluorescent bulb and circuitry for providing longer lamp life, instantaneous illumination and eliminating flickering during start up.
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Erickson Mark R.
Frost John S.
Moore Fred A.
Tanner David P.
Siemens Solar Industries L.P.
Yeung James C.
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