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. 31, 2006
Filed:
Jun. 13, 2003
Johannes Marra, Eindhoven, NL;
Harald Glaeser, Freiburg, DE;
Johannes Marra, Eindhoven, NL;
Harald Glaeser, Freiburg, DE;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A light-collimating system for collimating light from a light source has a plurality of elements (', . . . ), each element including at least a first wall (′, . . . ) and at least a second wall (′, . . . ). The first () and second wall (′) of adjacent elements are spaced with respect to each other at a side of the light-collimating system facing the light source, the spacing defining an aperture window (′, . . . ) for admitting light into the light-collimating system. The first and second wall of said adjacent elements form a wedge-shaped structure widening in a direction facing away from the light source. The first and the second wall are provided with a specular reflecting surface at a side facing the wedge-shaped structure. According to the invention, the wedge angle (w of the first and second wall with respect to the normal on the aperture window are adjustable for enabling adjustable collimation.