The optical element can have scattering particles.
The invention relates to moulded bodies for illuminated advertising, comprising a poly(meth)acrylate matrix, diffusion particles containing plastic and inorganic diffusion particles.
The diffusing particles (4) are of non-activated luminescent material, through which production is simplified.
Said sheath (11) prefabricated by extrusion from a thermoforming material wherein are incorporated diffusing particles, said particles being distributed homogeneously in the thermoforming material.
The overall concentration of the spherical diffusion particles (A) and particles (B) ranges between 1 and 60 % by weight relative to the weight of the light-diffusing polymethylmethacrylate layer.
It occurs when the size of the scattering particles is much smaller than the wavelength of the radiation.
The light scattering additive (20) yields a high ratio of forward to backward scattering and is preferably in the form of diffuser particles.
The light guide plate contains scattering particles that scatter light entering from the entrance surface and propagating in the plate.
The device further has diffusing particles (4) which are able to scatter a part of the radiation sent out by the radiation emitting element, and/or to scatter a part of the light sent out by the luminescent material (3).
The optical element can have scattering particles.
The invention relates to moulded bodies for illuminated advertising, comprising a poly(meth)acrylate matrix, diffusion particles containing plastic and inorganic diffusion particles.
The diffusing particles (4) are of non-activated luminescent material, through which production is simplified.
Allowing the bonding material to solidify will therefore affix the light-diffusing particles to the terminal end of the optical fiber.
Said sheath (11) prefabricated by extrusion from a thermoforming material wherein are incorporated diffusing particles, said particles being distributed homogeneously in the thermoforming material.
The overall concentration of the spherical diffusion particles (A) and particles (B) ranges between 1 and 60 % by weight relative to the weight of the light-diffusing polymethylmethacrylate layer.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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