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1. WO2006100127 - ILLUMINATING DEVICE COMBINING A WHITE LED AND A DIFFUSING SHEET

Publication Number WO/2006/100127
Publication Date 28.09.2006
International Application No. PCT/EP2006/003310
International Filing Date 23.03.2006
IPC
G09F 13/04 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
13Illuminated signs; Luminous advertising
04Signs, boards, or panels, illuminated from behind the insignia
G02B 5/02 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
F21V 7/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
7Reflectors for light sources
CPC
B60R 13/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
13Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
B60R 13/005
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
13Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
005Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor
C08F 265/06
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
265Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
04on to polymers of esters
06Polymerisation of acrylate or methacrylate esters on to polymers thereof
C08F 279/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
279Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
02on to polymers of conjugated dienes
C08F 279/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
279Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
02on to polymers of conjugated dienes
04Vinyl aromatic monomers and nitriles as the only monomers
C08L 2205/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
02containing two or more polymers of the same C08L -group
Applicants
  • ARKEMA FRANCE [FR]/[FR] (AllExceptUS)
  • VLOTTES, Peter [NL]/[NL] (UsOnly)
Inventors
  • VLOTTES, Peter
Agents
  • SENNINGER, Thierry
Priority Data
05.0298525.03.2005FR
60/686,84102.06.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ILLUMINATING DEVICE COMBINING A WHITE LED AND A DIFFUSING SHEET
(FR) DISPOSITIF ILLUMINE A DEL BLANCHE ET FEUILLE DE DIFFUSION
Abstract
(EN)
The invention relates to a luminous device, in particular an illuminated sign, comprising at least one white LED having a luminous flux of greater than 3 Lm, advantageously greater than 5 Lm, preferably greater than 10 Lm and even more preferably greater than 50 Lm, and to a cover made of a transparent plastic in which scattering particles with a content of 0.3 to 5%, preferably 0.3 to 4%, are dispersed, and having, when the LED is off, a luminosity L of less than 40, preferably less than 35, and when the LED is lit, a luminosity L of greater than 55, an a* value of between -7.5 and +7.5 and a b* value of between -7.5 and +7.5. The scattering particles may be of organic nature. In which case they may be polyamide or PTFE particles, methyl-methacrylate-based crosslinked particles, crosslinked styrene-based particles or silicone particles. The scattering particles may be of mineral nature. In this case they may be BaSO4, Ti02, ZnO, CaCO3, MgO or AI2O3 particles or hollow glass microspheres .
(FR)
Dispositif lumineux, en particulier signe illuminé, qui comprend au moins une DEL blanche à flux lumineux dépassant 3 Lm, de préférence dépassant 5 Lm, de préférence encore dépassant 10 Lm, et même de préférence enfin dépassant 50 Lm, et couvercle en plastique transparent dans lequel sont dispersées des particules de diffusion selon une teneur comprise entre 0,3 et 5 %, de préférence entre 0,3 et 4 %, pour une luminosité, lorsque la DEL est éteinte, inférieure à 40, de préférence à 35, et lorsque la DEL est allumée, supérieure à 55, et pour une valeur a* comprise entre -7,5 et +7,5 et une valeur b* comprise entre 7,5 et +7,5. Les particules peuvent être de nature organique, et il peut alors s'agir de particules de polyamide ou de PTFE, de particules réticulées à base de méthyle-méthacrylate, de particules réticulées à base de styrène ou de particules de silicone. Les particules de diffusion peuvent être de nature minérale. Dans ce cas, il peut s'agir de particules de BaSO4, Ti02, ZnO, CaCO3, MgO ou de AI2O3 ou bien encore de microsphères de verre creuses.
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