G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/30 (2006.01) F21V 9/14 (2006.01)
Patent
CA 2261274
A light polarising panel comprises a plurality of layers of translucent material. At least one gap (14, 16) is provided between a pair of adjacent layers and at least.one of the layers is a polarising layer (13) formed of cellular material with layered elliptical cells. The polarising layer (13) is formed firstly by a hot roll calendering process such that the cells become substantially elliptical. The material is then placed under tension and heated and passed to a pair of heated laminating rolls. The effect is to produce material which is glassified on its outer surfaces.
L'invention concerne un panneau de polarisation de la lumière comprenant une pluralité de couches de matériau translucide. Au moins un intervalle rempli d'air (14, 16) est créé entre une paire de couches adjacentes et au moins une des couches est une couche polarisante (13) formée dans un matériau cellulaire constitué de cellules elliptiques superposées. La couche polarisante (13) est d'abord formée par un processus de calandrage mettant en oeuvre des cylindres à chaud. Le matériau est ensuite mis sous tension, chauffé, et passé dans une paire de cylindres de laminage chauffés, ce procédé produisant un effet de vitrification sur les surfaces externes du matériau.
Clearvision International Limited
Marks & Clerk
LandOfFree
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