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. 17, 2014
Filed:
Sep. 18, 2009
Giorgia Tordini, Lyons, FR;
Giorgia Tordini, Lyons, FR;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The invention relates to an illumination system (), a luminaire (), a collimator () and a display device (). The illumination system according to the invention comprises a light source () and the collimator. The light source is configured for emitting a substantially Lambertian light distribution around a symmetry axis (). The refractive collimator is configured for redirecting light from the light source to at least partially illuminate an illuminating surface () in which at least a part of the illuminating surface being substantially parallel to the symmetry axis. The refractive collimator comprises a concave input window () and an at least partially convex output window () for refracting light towards the illuminating surface. The effect of the illumination system according to the invention is that a height of the illumination system may be reduced due to the use of the refractive collimator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile