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:
Dec. 25, 2012
Filed:
Sep. 09, 2009
Stefano Bernard, Orbassano, IT;
Stefano Bernard, Orbassano, IT;
C.R.F. Società Consortile per Azioni, Orbassano (Torino), IT;
Abstract
A lighting device, suitable for example for urban lighting of interiors or exteriors, or for lighting of interiors and exteriors of motor vehicles, said device comprising a substantially plane substrate and one or more LED or chip-LED semiconductor light sources distributed over the substrate and electrically connected to conductive supply paths, an optical means associated to the semiconductor source or sources, designed to modify the direction of the rays of light emitted by said semiconductor source, said device being characterized in that said optical means is of a substantially semicylindrical shape and consequently has a substantially plane base, two side faces and a substantially cylindrical outer surface, said optical means has a cavity obtained starting from said base within the body of said optical means and designed to house the source or sources, said side faces and said cavity are obtained by means of a rotation about a longitudinal axis of a two-dimensional profile and are designed to reduce the transverse divergence of the beam of light at output from said device, said outer surface is of a substantially cylindrical shape and is designed to reduce the longitudinal divergence of the beam of light at output from said device; the lighting device forming the subject of the patent being characterized in that it is designed to generate an illuminance pattern or luminous-intensity pattern that is substantially uniform and has a substantially rectangular shape.