G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/00 (2006.01) F21V 8/00 (2006.01)
Patent
CA 2507644
A structural shape on the surface of an optical substrate (110) is such that the brightness of diffuse light departing from the surface of the optical substrate (110) at certain off axis angles is reduced, at the expense of a small reduction in peak brightness measured near the viewing axis. The net result is an overall increase in useful illumination. A cross section of a prism as the structural shape has a curved sidewall or facet. A material with a relatively high index of refraction combined with a prismatic structure having a modified prism geometry improves brightness.
Une forme structurelle à la surface d'un substrat optique (110) est conçue de manière que la luminance de lumière diffusée émise depuis la surface du substrat optique (110) à certains angles désaxés est réduite, au détriment d'une faible réduction de la luminance de crête mesurée près de l'axe visualisation. Le résultat net consiste en une augmentation générale de luminosité utile. Une section transversale d'un prisme en tant que forme structurelle présente une paroi ou une face courbée. Un matériau présentant un indice de réfraction relativement élevé combiné à une structure prismatique possédant une géométrie de prisme modifiée améliore la luminance.
Company General Electric
Craig Wilson And Company
Sabic Innovative Plastics Ip B.v.
LandOfFree
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