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:
Oct. 28, 2014
Filed:
Jun. 20, 2012
Blair L. Unger, Rochester, NY (US);
Gregory P. Frankiewicz, Mayfield Heights, OH (US);
Joseph G. Kaveski, Leawood, KS (US);
Roger F. Buelow, Ii, Pepper Pike, OH (US);
John M. Davenport, Middleburg Heights, OH (US);
Blair L. Unger, Rochester, NY (US);
Gregory P. Frankiewicz, Mayfield Heights, OH (US);
Joseph G. Kaveski, Leawood, KS (US);
Roger F. Buelow, II, Pepper Pike, OH (US);
John M. Davenport, Middleburg Heights, OH (US);
Energy Focus, Inc., Solon, OH (US);
Abstract
An elongated LED lighting arrangement comprises an elongated fiberoptic light pipe having an exteriorly facing sidewall between its ends. The light pipe is constructed to promote TIR of light between the ends. A first LED light source is tuned to efficiently provide light within a wavelength range to the pipe. Light-extracting means are applied along the light pipe along the main path of TIR light propagation, and comprise down-converting means tuned to efficiently convert light rays from the LED light source within the wavelength range to lower-energy light rays at respectively longer wavelengths and light-scattering means for extracting from the pipe some light rays within the wavelength range without changing the wavelengths of the foregoing light. The light emitted by the down-converting means and the light-scattering means intermix to produce light, the majority of which has a composite color determined by the foregoing light emitted and the foregoing light extracted.