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:
Jun. 25, 2013
Filed:
Mar. 28, 2011
Benjamin P. Williams, Houlton, WI (US);
Benjamin P. Williams, Houlton, WI (US);
Target Brands, Inc., Minneapolis, MN (US);
Abstract
An edge-lit lighting product or luminaire includes a light guide made of a single, transparent material and demonstrates properties of total internal reflection with respect to a surrounding environment. The light guide has a thickness and includes a proximal edge, a distal edge and a boundary surface. The proximal edge receives light from a light source. The distal edge is spaced apart from the proximal edge, is configured to emit at least a portion of the light from the light source, spans across a first distance and has a substantially axial symmetric surface. The first distance is greater than the thickness of the light guide. The boundary surface extends between the proximal edge and the distal edge and defines a boundary between the single, transparent material of the light guide and the surrounding environment of the light guide. At least a portion of the boundary surface is curved.