Patent Number: 7,733,033

Title: Lighting unit with multiple light sources of a different color temperature

Abstract: In a lighting unit for operating lamps (LA1, LA2) 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.

Inventors: Baaijens; Hans (Eindhoven, NL), Potze; Willem (Eindhoven, NL), Payne; David Copplestone (Virginia Water, GB), Thursfield; Paul Philip (Eindhoven, NL)

Assignee: Koninklijke Philips Electronics N.V.

International Classification: H05B 37/02 (20060101)

Expiration Date: 2022-06-08 0:00:00