Solar-powered sun sensitive window
First Claim
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1. A self-contained, sun sensitive window comprising:
- a solar cell which outputs an electric current proportional to incident sunlight;
passive voltage regulator means for converting the electric current output by the solar cell to a high DC voltage output;
a pair of transparent plates placed parallel to each other;
a closure placed between the plates such that the plates form a closed cavity;
a pair of transparent, electrically conductive coatings on a pair of facing sides of the plates, said coatings being electrically connected to the output from the voltage regulator means; and
a quantity of electro-optical modulating material filling the cavity between the plates.
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Abstract
A self-contained sun sensitive window made up of liquid nematic crystals sandwiched between two transparent conductors is powered directly by a solar cell. An increase in light intensity upon the solar cell reduces the transparency of the window, resulting in a constant intensity behind the window.
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Citations
4 Claims
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1. A self-contained, sun sensitive window comprising:
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a solar cell which outputs an electric current proportional to incident sunlight; passive voltage regulator means for converting the electric current output by the solar cell to a high DC voltage output; a pair of transparent plates placed parallel to each other; a closure placed between the plates such that the plates form a closed cavity; a pair of transparent, electrically conductive coatings on a pair of facing sides of the plates, said coatings being electrically connected to the output from the voltage regulator means; and a quantity of electro-optical modulating material filling the cavity between the plates. - View Dependent Claims (2, 3, 4)
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Specification