Solar panel unit and solar lamp including same
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United States of America Patent
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Nov 14, 1995
Issued Date -
N/A
app pub date -
May 4, 1994
filing date -
Nov 4, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A solar panel unit includes a solar panel (10) supported for rotation about a frame (13) and driven around the frame (13) by an electric motor (14). Radiation sensors (22) and (23) have their planar axes equally and oppositely off-set from the planar axis of the panel (10). Signals from the sensors (22) and (23) are monitored and used to control the operation of the motor (14) such that the panel (10) moves as the sun moves during daylight hours and the panel remains with its planar axis at right angles to rays of the sun throughout the day.
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