F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
F21V 8/00 (2006.01) G09F 13/18 (2006.01)
Patent
CA 2339603
An edge-lit illumination system comprising a light transmitting sheet (10) and a light source (13, 14); the light source (13, 14) be-ing positioned in proximity to and adjacent to an edge of said light transmitting sheet (10), char-acterised in that at least one of the two opposing surfaces (11, 12) of said light transmitting sheet (10) carries markings such that said markings are disposed randomly within each of at least one nominal area of said at least one surface. If this novel surface treatment is disturbed or disrupted, for example by staining or abrasion, the disrup-tion to the illumination of the system is less than would be expected.
Ce système d'éclairage par la tranche, qui comprend une feuille photoémettrice (10) et une source de lumière (13, 14) montée au voisinage de la tranche de cette feuille photoémettrice (10) ou contre elle, se caractérise en ce que l'une au moins des deux faces opposées (11, 12) de la feuille photoémettrice (10) porte des marques réalisées de façon telle qu'elles sont disposées de façon aléatoire à l'intérieur de l'une au moins des surfaces nominales de la face considérée. Si le traitement de surface de l'invention est perturbé ou interrompu, par exemple par des taches ou de l'abrasion, la rupture d'éclairage du système n'atteint pas ce à quoi l'on pourrait s'attendre.
Allinson Heather
Forster John Henry
Gowan Intellectual Property
Ineos Acrylics Uk Limited
Lucite International Uk Limited
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