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US 5,317,145 AGranted
Radiation source detector and tracker control having a shade pole and radiation responsive surface in the shape of narrow bands
AssigneeWattsun, Inc.
InventorRonald P. Corio
Life of this patent
Estimating the term…
Abstract
A tracker controller system in which a pair of photo-resistive cadmium sulfide sensors mounted in the shadow of a shade pole generate a voltage signal proportional to their resistive values which signal is delivered to a comparator circuit that causes a tracker driver to operate when the voltage signal falls outside of a voltage window established by the comparator circuit.
Claims7
In a radiation source detector the combination comprising:
- a shade pole casting a shadow of the radiation source;
- and
- a first radiation responsive surface in the shape of a narrow band more than 0.00464 times the shade pole length and less than 0.75 inches wide disposed partially in and partially out of the shadow of said shade pole.
Dependencies are inferred from the claim text.