EP1456581A1 - Beleuchtbare vorrichtung - Google Patents
Beleuchtbare vorrichtungInfo
- Publication number
- EP1456581A1 EP1456581A1 EP02787757A EP02787757A EP1456581A1 EP 1456581 A1 EP1456581 A1 EP 1456581A1 EP 02787757 A EP02787757 A EP 02787757A EP 02787757 A EP02787757 A EP 02787757A EP 1456581 A1 EP1456581 A1 EP 1456581A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- plastic
- cover
- colored
- scattering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 claims abstract description 55
- 239000004033 plastic Substances 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000000149 argon plasma sintering Methods 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000004793 Polystyrene Substances 0.000 claims description 12
- 229920002223 polystyrene Polymers 0.000 claims description 12
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 11
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 11
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical compound O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 claims description 9
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 claims description 5
- JFGQHAHJWJBOPD-UHFFFAOYSA-N 3-hydroxy-n-phenylnaphthalene-2-carboxamide Chemical compound OC1=CC2=CC=CC=C2C=C1C(=O)NC1=CC=CC=C1 JFGQHAHJWJBOPD-UHFFFAOYSA-N 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 4
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 claims description 3
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 claims description 3
- 235000013799 ultramarine blue Nutrition 0.000 claims description 3
- 239000003086 colorant Substances 0.000 description 18
- 239000000203 mixture Substances 0.000 description 15
- 238000004040 coloring Methods 0.000 description 13
- 230000002349 favourable effect Effects 0.000 description 7
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- -1 polyethylene terephthalate Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 235000019646 color tone Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000002594 fluoroscopy Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 241001248537 Eurema daira Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 235000012745 brilliant blue FCF Nutrition 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- LNCPIMCVTKXXOY-UHFFFAOYSA-N hexyl 2-methylprop-2-enoate Chemical compound CCCCCCOC(=O)C(C)=C LNCPIMCVTKXXOY-UHFFFAOYSA-N 0.000 description 1
- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- WPPDXAHGCGPUPK-UHFFFAOYSA-N red 2 Chemical compound C1=CC=CC=C1C(C1=CC=CC=C11)=C(C=2C=3C4=CC=C5C6=CC=C7C8=C(C=9C=CC=CC=9)C9=CC=CC=C9C(C=9C=CC=CC=9)=C8C8=CC=C(C6=C87)C(C=35)=CC=2)C4=C1C1=CC=CC=C1 WPPDXAHGCGPUPK-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to an illuminable device consisting essentially of a light source made of one or more light-emitting diodes and a light-scattering cover made of colored plastic and assigned to the light source.
- Illuminable devices e.g. B. for billboards consisting essentially of a light source and the light source associated light-scattering cover made of colored plastic are known in principle A2 (see. For example, JP 61159440).
- incandescent lamps or fluorescent tubes are used as light sources, which have good luminosity and emit a broad spectrum of light. Due to the wide light spectrum, corresponding colored plastic covers appear in the non-illuminated state, e.g. B. in daylight, in the same color impression, which can also be perceived with backlighting using the light sources mentioned.
- Light-emitting diodes have a significantly lower luminosity than light sources such as incandescent lamps or fluorescent tubes. However, colored light-emitting diodes can still be perceived very well in the dark, since they emit an almost monochromatic light, which in turn is relatively intense in the respective wavelength range. Corresponding colored light-emitting diodes are available from several manufacturers, e.g. B. available in the colors red, green, blue and yellow. Coloring and coloring processes for plastics such as B. Polymethyl methacrylate are well known z. B. from EP-A 130 576.
- the device should be optically roughly the same color impression with incident light, ie z. B. in daylight, as well as in fluoroscopy.
- the device is intended to enable shallower construction depths than the previously known devices and is distinguished by lower power consumption.
- illuminable device consisting essentially of a light source and a light-scattering cover assigned to the light source and made of colored plastic, characterized in that
- the light source consists of one or more light emitting diodes (LEDs) which emit a colored, essentially monochromatic light and the associated light-scattering cover has a transmission (DIN 5036) of at least 35% and a reflection (DIN 5036) at the wavelength of the relative energy maximum of the light emitting diode of at least 15%.
- the invention is based on the transmission and the reflectance of the light-diffusing cover made of plastic, to adapt to the monochromatic light of the LED used, that almost the same color impression can be obtained in both light and transmitted light. Corresponding advertising or information boards appear almost the same both during the day and in the backlit state.
- This adaptation enables the use of colored or monochromatic light-emitting LEDs for the stated purpose.
- the illuminable device according to the invention require smaller installation depths, since LEDs are smaller than corresponding incandescent lamps or fluorescent tubes. Complicated shapes are also easier to implement.
- the power consumption is lower, with almost the same perception in the backlit state. Since LEDs can be operated with low voltages, the electrical safety of the devices according to the invention can also be regarded as higher or easier to ensure. The maintenance effort is also lower, since LEDs usually have to be replaced less often.
- Plastic covers suitable for a specific colored LED are suitable for a specific colored LED.
- the suitable color locations lie in the part of the resulting rectangle that lies within the standard color table.
- A maximum color locus distance (0.2 units) from the color locus of the LED on the straight line through U and LED
- B maximum color locus distance (0.05 units) on both sides at right angles to the straight line through U and LED.
- T color location of the transmission of the cover
- R color location of the reflection of the cover.
- the invention relates to an illuminable device, consisting essentially of a light source and a light-scattering cover assigned to the light source and made of colored plastic.
- the light source consists of one or more or a large number of light-emitting diodes (LEDs) which emit a colored, essentially monochromatic light. If necessary, LEDs of different colors can also be used at the same time.
- LEDs light-emitting diodes
- the color of the LED depends on the wavelength of its relative energy maximum.
- This relative maximum energy can e.g. B. be determined spectrophotometric and are plotted in a wavelength spectrum. You can use the light source z. B. into an integrating 'sche ball (s. DIN 5036) introduce and measure the emitted light. The highest point (peak) of the curve marks the wavelength of the relative energy maximum.
- LEDs The number of LEDs depends on the size of the device, the luminosity of the LEDs used and the overall desired brightness of the device in the illuminated state. LEDs are e.g. B available as modules of 4 LEDs in a holder, of which a large number can be installed in the device if necessary. Light emitting diodes (LEDs).
- LEDs Light emitting diodes
- Suitable LEDs are e.g. B. red, blue, yellow or green LEDs.
- a red LED has a relative energy maximum in the range of approximately 610 to 640 nm.
- the red LED (Osram LM03-B-A) has e.g. B. a relative energy maximum at about 620 nm.
- a blue LED has a relative energy maximum in the range from about 440 to
- the blue LED (Osram LM03-B-B) has e.g. B an energy maximum at about 460 nm.
- the blue LED (ESS blue) has e.g. B an energy maximum at about 475 nm.
- a yellow LED has a relative energy maximum in the range of about 570 to
- the yellow LED (Osram LM03-B-Y) has e.g. B an energy maximum at about 590 nm.
- a green LED has a relative energy maximum in the range of about 500 to
- the green LED (Osram LM03-BT) has e.g. B an energy maximum at about 520 nm.
- the assigned light-scattering cover made of plastic has a transmission (DIN 5036, see parts 1 and 3) of at least 35%, preferably at least 38%, particularly preferably at least 41% and a reflection (DIN 5036, at the wavelength of the relative energy maximum of the light-emitting diode). Parts 1 and 3, reflection or remission) of at least 15%, preferably at least 20%, particularly preferably at least 30%.
- the transmission of a light-scattering cover assigned to a yellow LED can be at least 50%, preferably at least 60%.
- the corresponding reflection can be at least 25%, preferably at least 30%.
- the transmission of a light-scattering cover assigned to a red LED can be at least 40%, preferably at least 45%.
- the corresponding reflection can be at least 22%, preferably at least 45%.
- the transmission of a light-scattering cover assigned to a green LED can be at least 40%, preferably at least 42%.
- the corresponding reflection can be at least 18%, preferably at least 20%.
- the transmission of a light-scattering cover assigned to a blue LED can be at least 40%, preferably at least 42%.
- the corresponding reflection can be at least 20%, preferably at least 22%.
- the assigned light-diffusing cover made of plastic should at least at the wavelength of the relative energy maximum of one of the light-emitting diodes used, that is, for. B. the yellow or the green LED, the transmission and reflection values required above.
- the assigned light-scattering cover consists of a plastic, which is a plastic that is transparent in the non-colored state and without diffusing agent, or a transmittance (DIN 5036, see parts 1 and 3 / D65) of at least 50%, preferably at least 70 , particularly preferably from 75 to 92%.
- a transmittance can advantageously be at least 40%, particularly preferably at least 50%.
- Suitable plastics are e.g. B. polymethyl methacrylate plastic, impact modified polymethyl methacrylate, polycarbonate plastic, polystyrene plastic, styrene-acrylic-nitrile plastic, polyethylene terephthalate plastic, glycol-modified polyethylene terephthalate plastic, polyvinyl chloride plastic, transparent polyolefin plastic, acrylonitrile-butadiene-stryrene ( ABS) - plastic or mixtures (blends) of different thermoplastics.
- B. polymethyl methacrylate plastic impact modified polymethyl methacrylate
- polycarbonate plastic polystyrene plastic
- styrene-acrylic-nitrile plastic polyethylene terephthalate plastic
- glycol-modified polyethylene terephthalate plastic glycol-modified polyethylene terephthalate plastic
- polyvinyl chloride plastic transparent polyolefin plastic
- ABS acrylonitrile-butadiene-stryrene
- polymethyl methacrylate plastics made of cast or extruded polymethyl methacrylate, e.g. B. with a methyl methacrylate content of 85 to 100 wt .-%, preferred.
- suitable comonomers such as B. esters of methacrylic acid (e.g. ethyl methacrylate, butyl methacrylate, hexyl methacrylate, cyclohexyl methacrylate), Esters of acrylic acid (e.g.
- methyl acrylate, ethyl acrylate, butyl acrylate, hexyl acrylate, cyclohexyl acrylate) or styrene and styrene derivatives, such as, for example, ⁇ -methylstyrene or p-methylstyrene, are polymerized with or contained in the polymer.
- the light scattering capacity of the cover measured according to DIN 5036, can preferably have a value of at least 0.5, particularly preferably at least 0.6, in particular at least 0.7.
- BaSO or polystyrene are preferred and are preferably introduced into the plastic in an amount of 1.5 to 2.5% by weight.
- Light scattering beads made of a cross-linked plastic are preferably introduced into the plastic in an amount of 0.1 to 10% by weight.
- Titanium dioxide ensures a high spreading capacity. However, since this colorant reflects a large part of the light, only low light transmissions are possible.
- Colorless scattering pigments with a refractive index of up to about 0.2 from the refractive index of acrylic glass are more favorable.
- Calcium carbonate, magnesium carbonate, aluminum trihydroxide, magnesium hydroxide, barium sulfate, etc. are suitable, for example.
- Polymers with a suitable refractive index range can also be used. For example, polystyrene can be dissolved in the methyl methacrylate monomer, which then fails during the polymerization and leads to a material with good light scattering.
- crosslinked polymer particles can also be added, for example polymer beads from crosslinked polystyrene or crosslinked copolymers from methyl methacrylate with phenyl (meth) acrylate or benzyl (meth) acrylate.
- Scattering agents and colorants can the plastic in the production by polymerization in the polymerizable mixture or during thermoplastic processing in the melt state, for. B. by extrusion or injection molding, can be added or incorporated in a conventional manner.
- any profiles, such as pipes, rods, etc. can also be manufactured.
- plastic plates e.g. B. with a thickness of z. B. 0.5 to 10, preferably 1 to 5 mm
- Corresponding pieces can also be converted and adapted into practically any shape as required by cutting, milling, sawing or other processing.
- the device can be designed such that the LEDs and the light-scattering cover are associated with one another at a distance of 3 to 1, preferably 4 to 10 cm. Good illumination is achieved at this distance. at at a short distance the position of the LED becomes visible in the form of a bright spot. If the distance is too great, the brightness decreases too much.
- the LEDs can z. B. are in a box or frame that is covered by the light-diffusing cover.
- the cover can be covered with an information-carrying layer, e.g. As a film, are provided or already have the form of information, z. B. in letters or numbers.
- Organic colorants are preferably suitable as colorants for the purposes of the invention, since these have high brilliance and luminosity both in incident light and in transmitted light.
- light stabilizers, UV absorbers, antioxidants etc. can also be added.
- Suitable dyes in plastic are, in particular, soluble dyes or organic pigments, but also less preferably insoluble inorganic color pigments. Examples include:
- red coloring mixtures of pyrazolone yellow and antrachinone red or Naphtol AS and DPP red or mixtures thereof.
- green coloring mixtures of Cu-phthalocyanine green and pyrazolone yellow.
- blue colors anthraquinone blue and ultramarine blue or mixtures thereof.
- the invention is based on the consideration that the closer the color loci of the transmission and the reflectance of the colored cover to the color locus of the LED, the better the match of the color impression in incident light and in fluoroscopy.
- a matching of a coloring with a given LED color locus can practically only be achieved approximately.
- the aim should be that the color locations are located as far as possible on the edge of the color standard table, since the color brilliance is at its maximum here. This also results from the fact that the color locations of the LEDs are also at the edge or close to the edge of the standard color table due to the monochromatic light. It should be noted that the actually ascertainable (measured) color locations can also deviate from the theoretically expected color locations.
- Standard measuring devices are available to the person skilled in the art for measuring color locations.
- the plastic of the cover can be colored with a mixture of 0.075 to 0.09, preferably 0.081 to 0.084% by weight pyrazolone yellow and 0.002 to 0.004, preferably 0.0028 to 0.0032% by weight perinone orange ,
- the plastic of the cover can be mixed with a mixture of 0.13 to 0.17, preferably 0.14 to 0.16% by weight of pyrazolone yellow and 0.01 to 0.03, preferably 0.17 to 0 , 23% by weight of antrachinone red.
- the plastic of the cover can also be mixed with a mixture of 0.055 to 0.07, preferably 0.061 to 0.064% by weight Naphtol AS (2-hydroxy-3-naphthoic acid anilide) and 0.005 to 0.015, preferably 0.008 to 0.012% by weight DPP- Red (dipyrrolopyrrole red) can be colored.
- the plastic of the cover can be made with a mixture 0.01 to 0.025, preferably 0.013 to 0.017% by weight Cu-phthalocyanine green and 0.025 to 0.045, preferably 0.028 to 0.032% by weight pyrazolone yellow.
- the plastic of the cover can be mixed with a mixture of 0.005 to 0.01, preferably 0.006 to 0.008% by weight of anthraquinone blue and 0.05 to 0.1, preferably 0.07 to 0.08% by weight. Be colored ultramarine blue.
- the plastic of the cover can also be colored with 0.007 to 0.013, preferably 0.009 to 0.011% by weight of anthraquinone blue.
- the described, colored plastic elements containing scattering agents are used as a cover and colored LEDs are used as the light source.
- methyl methacrylate e.g. from BASF
- the dyes according to Table 1 are added, dissolved with vigorous stirring, placed in a silicate glass chamber spaced apart with a 3 mm thick cord and polymerized in a water bath at 45 ° C. for about 16 hours. The final polymerization takes place in a tempering cabinet at 115 ° C for about 4 hours.
- the samples described above are placed on this box and assessed in terms of color.
- the incident light test (day effect) is carried out by lighting with a daylight lamp with 150 W (D65 according to DIN 6173, quality class 1, e.g. from Siemens) at a distance of approx. 60cm from above.
- the LEDs are switched off it.
- the transmitted light inspection is carried out in a darkened room when the front LED's according to the above operation is acknowledged.
- the color measurements are carried out with the Chroma-Meter CS-100 from Minolta. This device allows non-contact measurements of light sources and object colors.
- the sample / device distance is 1 m.
- the luminance Y in Cd / m 2 is also measured with this device.
- Table 3 shows corresponding color measurements and luminance values of commercially available covers made of polymethyl methacrylate with standard colors, which are not specifically matched to the LEDs.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Massaging Devices (AREA)
- Switches With Compound Operations (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
- Eye Examination Apparatus (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10162360A DE10162360A1 (de) | 2001-12-18 | 2001-12-18 | Beleuchtbare Vorrichtung |
| DE10162360 | 2001-12-18 | ||
| PCT/EP2002/013057 WO2003052315A1 (de) | 2001-12-18 | 2002-11-21 | Beleuchtbare vorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1456581A1 true EP1456581A1 (de) | 2004-09-15 |
| EP1456581B1 EP1456581B1 (de) | 2006-01-11 |
Family
ID=7709784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02787757A Revoked EP1456581B1 (de) | 2001-12-18 | 2002-11-21 | Beleuchtbare vorrichtung |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US7052161B2 (de) |
| EP (1) | EP1456581B1 (de) |
| JP (1) | JP4148899B2 (de) |
| KR (1) | KR20040063994A (de) |
| CN (1) | CN100458273C (de) |
| AT (1) | ATE315764T1 (de) |
| AU (1) | AU2002352083B2 (de) |
| CA (1) | CA2470140A1 (de) |
| DE (2) | DE10162360A1 (de) |
| ES (1) | ES2253572T3 (de) |
| NO (1) | NO20043020L (de) |
| NZ (1) | NZ531881A (de) |
| RU (1) | RU2295667C2 (de) |
| TW (1) | TWI248503B (de) |
| WO (1) | WO2003052315A1 (de) |
| ZA (1) | ZA200404800B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000567A1 (de) | 2007-06-28 | 2008-12-31 | Evonik Röhm Gmbh | Beleuchtbare vorrichtung |
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| US20070020573A1 (en) * | 1999-12-21 | 2007-01-25 | Furner Paul E | Candle assembly with light emitting system |
| US7699603B2 (en) | 1999-12-21 | 2010-04-20 | S.C. Johnson & Son, Inc. | Multisensory candle assembly |
| DE10156068A1 (de) * | 2001-11-16 | 2003-05-28 | Roehm Gmbh | Lichtleitkörper sowie Verfahren zu dessen Herstellung |
| DE10244706A1 (de) * | 2002-09-24 | 2004-03-25 | Röhm GmbH & Co. KG | Formkörper aus Kunststoff, enthaltend einen Fluoreszenzfarbstoff |
| DE10323789A1 (de) * | 2003-05-23 | 2004-12-09 | Röhm GmbH & Co. KG | Formkörper für die Lichtwerbung und Verfahren zu deren Herstellung |
| DE102004010504B4 (de) * | 2004-03-04 | 2006-05-04 | Degussa Ag | Hochtransparente lasermarkierbare und laserschweißbare Kunststoffmaterialien, deren Verwendung und Herstellung sowie Verwendung von Metallmischoxiden und Verfahren zur Kennzeichnung von Produktionsgütern |
| US7704586B2 (en) * | 2005-03-09 | 2010-04-27 | Degussa Ag | Plastic molded bodies having two-dimensional and three-dimensional image structures produced through laser subsurface engraving |
| EP1864274B1 (de) * | 2005-03-25 | 2019-04-24 | Arkema France | Eine led und ein diffusionsblatt kombinierende beleuchtungseinrichtung |
| US20070022644A1 (en) * | 2005-08-01 | 2007-02-01 | Lynch Peter F | Merchandise display systems |
| DE102005054591A1 (de) * | 2005-11-14 | 2007-05-16 | Roehm Gmbh | Vorrichtung zur Beleuchtung mit blauen, grünen, gelben oder roten Leuchtdioden |
| JP4992250B2 (ja) * | 2006-03-01 | 2012-08-08 | 日亜化学工業株式会社 | 発光装置 |
| US7846492B2 (en) * | 2006-04-27 | 2010-12-07 | Guardian Industries Corp. | Photocatalytic window and method of making same |
| DE102007021199B4 (de) * | 2006-07-17 | 2016-02-11 | Evonik Degussa Gmbh | Zusammensetzungen aus organischem Polymer als Matrix und anorganischen Partikeln als Füllstoff, Verfahren zu deren Herstellung sowie deren Verwendung und damit hergestellte Formkörper |
| US20080015894A1 (en) * | 2006-07-17 | 2008-01-17 | Walgreen Co. | Health Risk Assessment Of A Medication Therapy Regimen |
| JP2008218141A (ja) * | 2007-03-02 | 2008-09-18 | Mori Noriko | Ledランプ |
| US7841741B2 (en) * | 2007-04-02 | 2010-11-30 | Endicott Interconnect Technologies, Inc. | LED lighting assembly and lamp utilizing same |
| CN102812782B (zh) * | 2010-04-02 | 2016-05-04 | 皇家飞利浦电子股份有限公司 | 发光二极管光源 |
| TW201139532A (en) | 2010-04-30 | 2011-11-16 | Styron Europe Gmbh | Improved light diffusing composition |
| US8575836B2 (en) | 2010-06-08 | 2013-11-05 | Cree, Inc. | Lighting devices with differential light transmission regions |
| WO2012126498A1 (de) * | 2011-03-18 | 2012-09-27 | Osram Ag | Led-lichtquelle und zugehörige baueinheit |
| CN102402105A (zh) * | 2011-11-28 | 2012-04-04 | 长江勘测规划设计研究有限责任公司 | 一种提高钻孔电视光照性能的照明装置 |
| CN103456249A (zh) * | 2013-01-17 | 2013-12-18 | 宁波海歌电器有限公司 | 图标发光显示系统 |
| KR101850490B1 (ko) | 2014-11-25 | 2018-04-19 | 사빅 글로벌 테크놀러지스 비.브이. | 표면으로부터 복사선을 방출시키기 위한 방법 및 물품 |
| JP6338785B2 (ja) | 2014-11-25 | 2018-06-06 | サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ | 表面を加熱するための方法および装置 |
| CN107622997B (zh) * | 2017-09-29 | 2019-11-12 | 厦门市启明辉科技有限公司 | 一种led光源器件 |
| FR3087778B1 (fr) * | 2018-10-26 | 2021-07-23 | Arkema France | Composition de polymere adaptee pour moulage par injection comprenant des particules et un colorant, son procede de preparation et son utilisation |
| FR3087776B1 (fr) * | 2018-10-26 | 2021-07-30 | Arkema France | Composition de polymere comprenant des particules et un colorant, son procede de preparation et son utilisation |
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2001
- 2001-12-18 DE DE10162360A patent/DE10162360A1/de not_active Ceased
-
2002
- 2002-10-25 TW TW091124904A patent/TWI248503B/zh not_active IP Right Cessation
- 2002-11-21 DE DE50205608T patent/DE50205608D1/de not_active Expired - Fee Related
- 2002-11-21 EP EP02787757A patent/EP1456581B1/de not_active Revoked
- 2002-11-21 AT AT02787757T patent/ATE315764T1/de not_active IP Right Cessation
- 2002-11-21 KR KR10-2004-7009334A patent/KR20040063994A/ko not_active Ceased
- 2002-11-21 WO PCT/EP2002/013057 patent/WO2003052315A1/de not_active Ceased
- 2002-11-21 CN CNB028204115A patent/CN100458273C/zh not_active Expired - Fee Related
- 2002-11-21 ES ES02787757T patent/ES2253572T3/es not_active Expired - Lifetime
- 2002-11-21 AU AU2002352083A patent/AU2002352083B2/en not_active Ceased
- 2002-11-21 CA CA002470140A patent/CA2470140A1/en not_active Abandoned
- 2002-11-21 RU RU2004108046/28A patent/RU2295667C2/ru not_active IP Right Cessation
- 2002-11-21 JP JP2003553168A patent/JP4148899B2/ja not_active Expired - Fee Related
- 2002-11-21 US US10/492,362 patent/US7052161B2/en not_active Expired - Fee Related
- 2002-11-21 NZ NZ531881A patent/NZ531881A/en unknown
-
2004
- 2004-06-17 ZA ZA200404800A patent/ZA200404800B/xx unknown
- 2004-07-06 NO NO20043020A patent/NO20043020L/no not_active Application Discontinuation
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| See references of WO03052315A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009000567A1 (de) | 2007-06-28 | 2008-12-31 | Evonik Röhm Gmbh | Beleuchtbare vorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1571901A (zh) | 2005-01-26 |
| CA2470140A1 (en) | 2003-06-26 |
| AU2002352083A1 (en) | 2003-06-30 |
| HK1071419A1 (zh) | 2005-07-15 |
| US7052161B2 (en) | 2006-05-30 |
| KR20040063994A (ko) | 2004-07-15 |
| NZ531881A (en) | 2005-09-30 |
| JP2005513715A (ja) | 2005-05-12 |
| ATE315764T1 (de) | 2006-02-15 |
| TWI248503B (en) | 2006-02-01 |
| EP1456581B1 (de) | 2006-01-11 |
| ES2253572T3 (es) | 2006-06-01 |
| DE10162360A1 (de) | 2003-07-03 |
| NO20043020L (no) | 2004-07-06 |
| WO2003052315A1 (de) | 2003-06-26 |
| RU2295667C2 (ru) | 2007-03-20 |
| ZA200404800B (en) | 2005-02-10 |
| CN100458273C (zh) | 2009-02-04 |
| RU2004108046A (ru) | 2005-04-10 |
| AU2002352083B2 (en) | 2006-08-31 |
| US20050002189A1 (en) | 2005-01-06 |
| JP4148899B2 (ja) | 2008-09-10 |
| DE50205608D1 (de) | 2006-04-06 |
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