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. 27, 2015
Filed:
Sep. 05, 2011
Ralph Kurt, Eindhoven, NL;
Teunis Willem Tukker, Eindhoven, NL;
Mark Eduard Johan Sipkes, Waalre, NL;
Ralph Kurt, Eindhoven, NL;
Teunis Willem Tukker, Eindhoven, NL;
Mark Eduard Johan Sipkes, Waalre, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
There is provided an arrangement for spot illumination (). The arrangement provides an improved collimation and color mixing unit comprising a LED array (), a convex shaped reflector (), a field lens () and an additional cylindrical reflector () at the exit aperture of the system. In combination with an optical projection system which may comprise at least two additional zoom lenses and a gate (in which several maskers, gobos or shutters could be inserted) the system allows color mixing in an extended operational range including out of focus zoom settings often used to get soft edge spots.