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:
Feb. 12, 2008
Filed:
Aug. 23, 2006
Roger F. Buelow, Ii, Gates Mills, OH (US);
William J. Cassarly, Wooster, OH (US);
Thomas L. R. Davenport, Tucson, AZ (US);
John M. Davenport, Middleburg Heights, OH (US);
Chris H. Jenson, Twinsburg, OH (US);
Roger F. Buelow, II, Gates Mills, OH (US);
William J. Cassarly, Wooster, OH (US);
Thomas L. R. Davenport, Tucson, AZ (US);
John M. Davenport, Middleburg Heights, OH (US);
Chris H. Jenson, Twinsburg, OH (US);
Energy Focus, Inc., Solon, OH (US);
Optical Research Associates, Pasadena, CA (US);
Abstract
Fiberoptic luminaire with scattering and specular side-light extractor patterns comprises a fiberoptic light pipe with elongated side-fight emitting portion. Such portion illuminates a target area with a scattering, and a specular, light extractor pattern. The extractor patterns are arranged to extract light from the side-light emitting portion over a radial angle, orthogonal to said main axis, of less than 180°. The scattering extractor pattern atone may provide greater than 50% of light on the target area, and light extracted by the specular extractor pattern alone may produce an illuminance on a selected portion of the target area that is greater than 5% of the maximum illuminance produced on the target area by the scattering extractor pattern. Furthermore, the scattering extractor pattern may comprise a Lambertian type of extractor pattern. Each specular extractor pattern may comprise a notch having main faces parallel to within 10° of each other.