A light housing provided with an afterglowing coating, the...

F - Mech Eng,Light,Heat,Weapons – 21 – V

Patent

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Details

F21V 9/16 (2006.01) C09K 11/02 (2006.01)

Patent

CA 2331521

A light housing, such as a light box or a light source of an at least partially transparent material, characterized in that at least part of said light housing is provided with an illuminating coating. In a preferred embodiment, the coating is a dispersion with a base of cellulose, acrylate, epoxy or polyurethane, or is a foil, for example a shrink foil provided with an afterglowing pigment of an alkaline-earth metal-containing aluminate, which is doped with one or more transition metals.

L'invention concerne une lanterne, telle qu'une enveloppe pour lampe ou une source lumineuse faite d'un matériau au moins partiellement transparent, qui se caractérise en ce qu'une partie dudit matériau au moins partiellement transparent est munie d'un revêtement lumineux. Dans une forme de réalisation préférée, ce revêtement est une dispersion à base de cellulose, d'acrylate, d'époxy ou de polyuréthane, ou une feuille (par exemple une feuille rétrécissable enduite d'un pigment luminescent obtenu à partir d'un aluminate à base de métal alcalino-terreux) dopée avec un ou plusieurs métaux de transition.

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