Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1983-10-18
1985-10-22
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
126425, G01J 120
Patent
active
045490783
ABSTRACT:
An automatic tracking system for tracking the sun on a path across the sky, comprising a reflector, a pre-programmed, automatic timed drive mechanism connected to the reflector for driving it on a given path, both ultraviolet and infrared sensors positioned on the reflector, means for comparing the amount of light detected by opposing sensors, and means for tilting the reflector about a horizontal and a vertical axis until the amount of light detected by each pair of sensors is equalized.
REFERENCES:
patent: 4086485 (1978-04-01), Kaplow et al.
patent: 4424801 (1984-01-01), Mori
Dougherty Ralph H.
Nelms David C.
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