The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 2015
Filed:
Apr. 26, 2010
Bahman Taheri, Shaker Heights, OH (US);
Tamas Kosa, Hudson, OH (US);
Christine Martincic, Cuyahoga Falls, OH (US);
Volodymyr Bodnar, Kent, OH (US);
Bahman Taheri, Shaker Heights, OH (US);
Tamas Kosa, Hudson, OH (US);
Christine Martincic, Cuyahoga Falls, OH (US);
Volodymyr Bodnar, Kent, OH (US);
ALPHAMICRON INCORPORATED, Kent, OH (US);
Abstract
A solar powered variable light attenuating device includes a liquid crystal cell, a photovoltaic cell in electrical communication with the liquid crystal cell, and a light concentrator having a light absorbing surface and a light emitting surface optically coupled to the photovoltaic cell. At least a portion of light impinging on the light absorbing surface of the light concentrator is concentrated and directed through the light emitting surface to a photon-absorbing portion of the photovoltaic cell to generate a voltage. The generated voltage is used to change the liquid crystal cell from a de-energized state to an energized state in response to sunlight directed toward the photovoltaic cell.