Light-emitting device with brightness enhancing layer

Details Light-emitting device with brightness enhancing layer Light-emitting device with brightness enhancing layer

2011-05-17

2011-05-17

Ton, Anabel M (Department: 2875)

Illumination

With polarizer

C362S293000, C362S231000, C362S247000, C362S240000

Reexamination Certificate

active

07942537

ABSTRACT:
A brightness enhancing means (5), comprising a collimating means (6) having a receiving area (61), an output area (62) being larger than said receiving area (61), and sidewalls (63) at least partially extending between said receiving and output areas, is provided. At least a portion of the sidewalls (63) of said collimating means (6) comprises a first filter being arranged to reflect light of a first light property, which light is received via said receiving area (61) of said first collimating means (6), towards said output area (62) of said first collimating means (6), wherein said first filter is a dichroic filter or a polarization filter.

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patent: 1439412 (2004-07-01), None
patent: 2004014365 (2004-01-01), None
patent: 0247915 (2002-06-01), None

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