Koninklijke Philips Corporation N.v.

Philips Lumileds Lighting Company LLC

Wilhelmus Adrianus Gerardus Timmers

Teunis Willem Tukker

Denis Joseph Carel Van Oers

Edwin Van Lier

Gibbo Johannes Abrahamse

Youri Martynov

Johannes Willem Herman Sillevis Smitt

An elongated luminaire for illuminating objects in front of the luminaire, comprising a plurality of side emitting LEDs () in only one straight array mounted on an elongated base plate (). The base plate () carries two elongated reflectors () extending on either side of the array of LEDs () and parallel to the array of LEDs (). Each reflector () has a reflecting surface () directed towards the array of LEDs ().

Elongated luminaire comprising LEDs for illuminating objects in front of the luminaire

A backlight illumination system for illuminating a large area with light of a uniform color has a set of a pre-determined number of light emitters arranged along a straight line. The set is divided in a plurality of subsets, each subset including at least two light emitters. Each subset comprises light emitters with substantially the same light-emission color point, the respective subsets having color points different from each other. As a first step, the light emitters of the subset with a smallest number of light emitters are assigned to respective substantially equidistant positions. The light emitters of the set are assigned to the respective positions by iteratively starting with the subset with the smallest number of light emitters, assigning the light emitters of the subset to substantially equidistant positions which are not yet occupied. The backlight illumination system according to the invention has a uniform light and color distribution.

Illumination system and display device

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Eindhoven, Netherlands

Wilhelmus Adrianus Gerardus Timmers