EP2660503A1 - Lampe - Google Patents
Lampe Download PDFInfo
- Publication number
- EP2660503A1 EP2660503A1 EP20120166723 EP12166723A EP2660503A1 EP 2660503 A1 EP2660503 A1 EP 2660503A1 EP 20120166723 EP20120166723 EP 20120166723 EP 12166723 A EP12166723 A EP 12166723A EP 2660503 A1 EP2660503 A1 EP 2660503A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- light
- color conversion
- screen
- luminaire according
- 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
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 19
- 238000000149 argon plasma sintering Methods 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 5
- 239000012876 carrier material Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract 3
- 239000011575 calcium Substances 0.000 description 8
- 229910052791 calcium Inorganic materials 0.000 description 7
- 229910052712 strontium Inorganic materials 0.000 description 7
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 5
- 229910052788 barium Inorganic materials 0.000 description 4
- 229910052693 Europium Inorganic materials 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000010428 baryte Substances 0.000 description 2
- 229910052601 baryte Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 102100032047 Alsin Human genes 0.000 description 1
- 101710187109 Alsin Proteins 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 229910004122 SrSi Inorganic materials 0.000 description 1
- 229910004412 SrSi2 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
- 229910000164 yttrium(III) phosphate Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
-
- 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
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
-
- 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
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
- F21V9/38—Combination of two or more photoluminescent elements of different materials
-
- 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
- F21V3/061—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being glass
-
- 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
-
- 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 a luminaire, in particular a luminaire, using at least one light-emitting diode (LED), which forms the light source.
- LED light-emitting diode
- LED-based luminaires have numerous advantages over conventional luminaires, such as incandescent lamps. In addition to the lower energy consumption to achieve a specific light intensity, these semiconductors can emit light of different colors.
- phosphors are often used.
- the term "phosphor” is used here more generally for color conversion phosphors. These materials absorb at least a portion of the light emitted by an LED chip and emit light at a different wavelength. Often the phosphors are applied in one layer on the LED chip. The white light is then produced, for example, by the additive mixture of the blue LED radiation and a yellow emission of the corresponding phosphor.
- Such an arrangement is from the US 7,972,030 B2 known.
- a screen which is arranged at a distance from the light source (LED), coated with corresponding phosphors on at least one surface.
- the phosphor can also be integrated into the screen.
- the invention is based on the object to offer a lamp of the type mentioned, which is easy to manufacture, also allows the use of sensitive phosphors, in particular sensitive to moisture phosphors and preferably has advantages in terms of brightness and / or light distribution ,
- the last two layers not only physically protect the color conversion layer but protect it, for example, from moisture and chemical attack.
- the light source in particular a light-emitting diode, emits, for example, light of wavelength up to 500 nm, ie in particular blue light.
- the selection of corresponding color conversion phosphors makes it possible to emit light of green color (500 to 550 nm) or yellow color (> 550 to 570 nm), orange light (> 570 to 610 nm) to red light (> 610 to 660 nm).
- the screen of a lamp according to the invention may have at least one layer in the form of a film.
- the first and third layer may be designed as a film, but also the color conversion layer.
- the plates or foils of the first and third layers may have coatings with certain reflective properties.
- the first layer foil, plate
- the first layer may have a coating that reflects light of first and second wavelength backscattered by the color conversion layer. This measure increases the overall efficiency of the luminaire.
- the color conversion layer may be applied to a support material.
- This carrier material may be a discrete film. However, the carrier material can also be formed by the first or third layer.
- the described sandwich construction can be implemented in particular as a composite element in which the first layer and the third layer consist of plastic and the color conversion layer between the first Layer and the third layer is laminated. In this way, the color conversion layer can be hermetically sealed on all sides with respect to the first layer and the third layer.
- the screen consists of a composite element in which the first layer and the third layer consist of glass.
- the color conversion layer running in between may, for example, be a coating of the first and / or second glass layer or consist of a discrete layer, for example a film.
- the sensitive color conversion layer can be optimally protected against moisture, for example, by the first and third layers.
- the surfaces of the first and third layers are larger than the surface of the color conversion layer so that the first and third layers can be connected directly to one another at the edge in order to optimize the tightness of the entire device ..
- the glass embodiment meets particularly high quality and luminous efficacy requirements.
- the color conversion layer (phosphor layer) consists for example of one or more color conversion phosphors and an organic binder or support material.
- the color conversion layer may contain additives, for example from the group: light-scattering particles, color pigments.
- light-scattering particles for example, colorless inorganic or organic particles can be used.
- the grain size of these particles may be in the range of the wavelength of the light or above.
- the task of the light-scattering particles is to scatter the light emitted by the color conversion layer, that is, to create a uniform distribution of the light intensity in the area and to optimize the light emission.
- the invention proposes to use light-scattering particles whose refractive index is different from the refractive index of the environment.
- the refractive index also called the refractive index, is a dimensionless quantity that characterizes the optical material property and indicates by what factor the wavelength and the phase velocity of the light are smaller than in a vacuum.
- Suitable light-scattering particles are: barium sulfate, barium titanate, magnesium carbonate, magnesium hydroxide, calcium carbonate, zinc oxide, aluminum oxide, yttrium aluminum oxide, titanium dioxide, boron nitride, aluminum nitride, silicone resin. These materials are used, for example, as powders with particle sizes in the range up to 60 ⁇ m, for example in the range from 0.1 to 50 ⁇ m, in particular from 0.4 to 20 ⁇ m.
- the self-absorption of these particles should be as low as possible.
- the so-called color factor L * (L * a * b * color space, determined in accordance with DIN EN ISO 11644-4) should, for example, be between 90 and 100 with lower alternative limit values, for example at 95 or 97.
- the addition of the light-scattering particles has the further advantage that they reduce the erfoderlichen proportion of phosphors, thereby reducing the cost be lowered.
- the main advantage is the ability to increase the overall brightness of the luminaire by using these particles (scattering agent) within the second layer of the screen.
- the screen heats up. Also, the property of the phosphors is known that the efficiency of their light emission decreases with increasing temperature. This effect is called temperature quenching.
- the invention makes it possible to reduce this problem in two directions.
- the light output per unit area can be limited, or in other words: for the same light output, the area of the screen of the remote light is increased.
- the associated additional costs are compensated by the possibility of reducing the proportion of expensive phosphors, if at the same time the said light-scattering particles are used.
- the brightness of the luminaire as a whole can be increased.
- the increase in efficiency causes a corresponding reduction in the loss of light energy. Losses are always released in the form of heat to the environment. The heat development within the second layer is reduced accordingly.
- the sandwich structure of the screen and the hermetic encapsulation of the color conversion layer make it possible, for example, to use phosphors with limited climatic resistance or reduced moisture resistance.
- low cost siliceous phosphors can be used even when the luminaire is used in a humid environment.
- a further embodiment of the invention provides that the third layer is designed in such a way or in which between the color conversion layer and the third layer, an intermediate layer is designed and arranged so that the color conversion layer is not recognizable or changed in color for a viewer from the outside.
- the often yellow color of the color conversion layer may interfere, especially when the luminaire is off.
- the third layer can be frosted, structured and / or colored, for example.
- Corresponding properties may also include any intermediate layer. In function and effect, these measures are similar to a "diffuser" or a "diffuser element”.
- the luminaire according to the invention offers the possibility of forming the screen with structured surfaces (profilings), so that almost any designs can be produced.
- the screen and correspondingly the layers may be planar.
- the screen can also assume any three-dimensional geometric shapes.
- the multilayer structure of the screen remains unchanged.
- the lamp shown consists of a cylindrical housing 10 with a bottom 12 and a circumferential cylinder wall 14. Inside, a light-imitating diode 16 is arranged on the bottom 12, which emits short-wave, blue light having a wavelength of about 450 to 470 nm.
- the lamp 10 Opposite the floor 12 and at a distance from the floor 12, the lamp 10 has a screen 20 which consists of three layers. A first layer S1, adjacent to the bottom 12. A second layer S2 and an outer layer S3.
- the layers S1, S3 are made of glass.
- the layer S2 consists of several color conversion phosphors (phosphors), which are assembled on a film.
- the selection of the color conversion phosphors is such that the luminaire 10 emits white light in total of a wavelength> 500 nm when the diode 16 directs blue light onto the layer S2.
- FIG. 1 is schematically illustrated the encapsulation of the layer S2 through the layers S1, S3, characterized in that the layer S2 also edge of the layers S1, S3 is included.
- a hermetic seal of the layer S2 is achieved by the layers S1, S3, whereby the technical effects and advantages described above are achieved.
- the layer S2 contains about 3% by weight of baryte, which consists of 90% particles whose particle size is between 1 and 10 ⁇ m.
- the baryte forms the mentioned light-scattering particles within the umbrella structure. It is evenly distributed in the layer S2.
- To adjust the light emission of the barite portion can be lowered, for example, up to 1% by mass or up to 6% by mass.
- the described remote configuration in the composite embodiment serves to emit light of the wavelength L2 from the screen scattered and uniformly outward, the wavelength L2 being greater than the wavelength L1 is.
- a further layer may be arranged, which covers the color conversion layer S2 and which is formed such that the color of the layer S2 for the Betrahcter is no longer recognizable from the outside.
- the embodiment according to FIG. 2 differs from the embodiment according to FIG. 1 in that the screen 20 is not planar, but designed in the manner of a hemisphere.
- An external profiling 20s is partial and only schematically indicated.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Luminescent Compositions (AREA)
- Led Device Packages (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12166723.2A EP2660503B1 (fr) | 2012-05-04 | 2012-05-04 | Lampe |
| EP13722350.9A EP2844909A1 (fr) | 2012-05-04 | 2013-05-03 | Lampadaire |
| PCT/EP2013/059257 WO2013164451A1 (fr) | 2012-05-04 | 2013-05-03 | Lampadaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP12166723.2A EP2660503B1 (fr) | 2012-05-04 | 2012-05-04 | Lampe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2660503A1 true EP2660503A1 (fr) | 2013-11-06 |
| EP2660503B1 EP2660503B1 (fr) | 2015-12-30 |
Family
ID=48430710
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12166723.2A Not-in-force EP2660503B1 (fr) | 2012-05-04 | 2012-05-04 | Lampe |
| EP13722350.9A Withdrawn EP2844909A1 (fr) | 2012-05-04 | 2013-05-03 | Lampadaire |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13722350.9A Withdrawn EP2844909A1 (fr) | 2012-05-04 | 2013-05-03 | Lampadaire |
Country Status (2)
| Country | Link |
|---|---|
| EP (2) | EP2660503B1 (fr) |
| WO (1) | WO2013164451A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016079023A1 (fr) * | 2014-11-17 | 2016-05-26 | Osram Opto Semiconductors Gmbh | Élément de conversion et son procédé de fabrication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070273274A1 (en) * | 2006-05-24 | 2007-11-29 | Citizen Electronics | Translucent laminate sheet and light-emitting device using the translucent laminate sheet |
| US20080111145A1 (en) * | 2006-11-09 | 2008-05-15 | Yuan Lin | White light emitting diode device |
| US20100232133A1 (en) * | 2009-03-10 | 2010-09-16 | Nepes Led, Inc. | Lamp-cover structure containing luminescent material |
| US7972030B2 (en) | 2007-03-05 | 2011-07-05 | Intematix Corporation | Light emitting diode (LED) based lighting systems |
| WO2012046175A1 (fr) * | 2010-10-06 | 2012-04-12 | Koninklijke Philips Electronics N.V. | Dispositif émettant de la lumière comprenant un luminophore organique |
| US20120087124A1 (en) * | 2010-12-30 | 2012-04-12 | Xicato, Inc. | Led-based illumination modules with thin color converting layers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8604678B2 (en) * | 2010-10-05 | 2013-12-10 | Intematix Corporation | Wavelength conversion component with a diffusing layer |
-
2012
- 2012-05-04 EP EP12166723.2A patent/EP2660503B1/fr not_active Not-in-force
-
2013
- 2013-05-03 WO PCT/EP2013/059257 patent/WO2013164451A1/fr not_active Ceased
- 2013-05-03 EP EP13722350.9A patent/EP2844909A1/fr not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070273274A1 (en) * | 2006-05-24 | 2007-11-29 | Citizen Electronics | Translucent laminate sheet and light-emitting device using the translucent laminate sheet |
| US20080111145A1 (en) * | 2006-11-09 | 2008-05-15 | Yuan Lin | White light emitting diode device |
| US7972030B2 (en) | 2007-03-05 | 2011-07-05 | Intematix Corporation | Light emitting diode (LED) based lighting systems |
| US20100232133A1 (en) * | 2009-03-10 | 2010-09-16 | Nepes Led, Inc. | Lamp-cover structure containing luminescent material |
| WO2012046175A1 (fr) * | 2010-10-06 | 2012-04-12 | Koninklijke Philips Electronics N.V. | Dispositif émettant de la lumière comprenant un luminophore organique |
| US20120087124A1 (en) * | 2010-12-30 | 2012-04-12 | Xicato, Inc. | Led-based illumination modules with thin color converting layers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016079023A1 (fr) * | 2014-11-17 | 2016-05-26 | Osram Opto Semiconductors Gmbh | Élément de conversion et son procédé de fabrication |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013164451A1 (fr) | 2013-11-07 |
| EP2660503B1 (fr) | 2015-12-30 |
| EP2844909A1 (fr) | 2015-03-11 |
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