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. 08, 2010
Filed:
Mar. 22, 2006
Applicants:
Hans Baaijens, Eindhoven, NL;
Willem Potze, Eindhoven, NL;
David Copplestone Payne, Virginia Water, GB;
Paul Philip Thursfield, Eindhoven, NL;
Inventors:
Hans Baaijens, Eindhoven, NL;
Willem Potze, Eindhoven, NL;
David Copplestone Payne, Virginia Water, GB;
Paul Philip Thursfield, Eindhoven, NL;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a lighting unit for operating lamps (LA, LA) of a different color temperature, a number of predetermined color points can be adjusted. The color points are chosen so that the color difference calculated in the CIELAB space is the same for subsequent adjustable color points.