LIGHT DIFFUSER PLATE AND USE THEREOF

• Main Authors: HYAKUTA, KENTAROU, IYAMA, HIRONOBU
• Format: Patent
• Language: English; French; Japanese
• Published: 14.05.2010
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GENERAL PROCESSES OF COMPOUNDING; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS; WORKING-UP

Disclosed is a light diffuser plate (3) comprising a transparent resin and light-diffusing particles, wherein the transparent resin has a light transmittance of 65% or greater when light having a wavelength of 600 nm is transmitted through an optical path length of 200 mm.  Preferably, the transparent resin has a zinc content of 150 ppm or less. La présente invention concerne une plaque de diffuseur de lumière (3). Ladite plaque comprend une résine transparente et des particules de diffusion de lumière. La résine transparente présente un facteur de transmission supérieur ou égal à 65 % lors de la transmission d'une lumière présentant une longueur d'onde de 600 nm via un trajet optique d'une longueur de 200 mm. De préférence, la résine transparente présente une teneur en zinc de 150 ppm ou moins.