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:
Apr. 06, 2010
Filed:
Feb. 15, 2007
Martin Hillebrand Blees, Eindhoven, NL;
Ferry Barrois, Eindhoven, NL;
Wilhelmus Frederik Laurens Maria Hoeben, Eindhoven, NL;
Mikhail Sorokin, Eindhoven, NL;
Ludo Haenen, Eindhoven, NL;
Bennie Simpelaar, Eindhoven, NL;
Nebojsa Fisekovic, Eindhoven, NL;
Martin Hillebrand Blees, Eindhoven, NL;
Ferry Barrois, Eindhoven, NL;
Wilhelmus Frederik Laurens Maria Hoeben, Eindhoven, NL;
Mikhail Sorokin, Eindhoven, NL;
Ludo Haenen, Eindhoven, NL;
Bennie Simpelaar, Eindhoven, NL;
Nebojsa Fisekovic, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A portable illumination device, for illuminating an object through a medium having an absorption coefficient, has a lighting unit including at least two differently colored light sources for emitting light having a color distribution and a control unit for adjusting the color distribution. The control unit is adapted to receive a distance estimate corresponding to the distance between the illumination device and the object, and adjust the color distribution depending on the distance estimate, such that light reflected from the object is perceived to have substantially correct color reproduction.