WO2010134011A2 - Light scattering and conversion plate for leds - Google Patents
Light scattering and conversion plate for leds Download PDFInfo
- Publication number
- WO2010134011A2 WO2010134011A2 PCT/IB2010/052167 IB2010052167W WO2010134011A2 WO 2010134011 A2 WO2010134011 A2 WO 2010134011A2 IB 2010052167 W IB2010052167 W IB 2010052167W WO 2010134011 A2 WO2010134011 A2 WO 2010134011A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- systems
- illumination system
- thickness
- lighting systems
- Prior art date
Links
- 238000000149 argon plasma sintering Methods 0.000 title claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 19
- 238000005286 illumination Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 13
- 229910010293 ceramic material Inorganic materials 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 57
- 230000000052 comparative effect Effects 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910017109 AlON Inorganic materials 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910026161 MgAl2O4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical group 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- 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
- F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0091—Scattering means in or on the semiconductor body or semiconductor body package
Definitions
- the present invention is directed to novel luminescent materials and compounds for light emitting devices, especially to the field of LEDs
- an illumination system comprising at least one light scattering and conversion plate comprising a) a first layer having scattering properties and no conversion properties and b) a second layer having conversion properties whereby the thickness A of the first layer and the thickness B of the second layer match
- a and B match A> 4*B, more preferred A> 7*B.
- layer and /or “plate” especially mean and/or include an object which extends in one dimension (i.e. the height) to ⁇ 40%, more preferred ⁇ 20% and most preferred ⁇ 10% than in any of the other dimensions (i.e. width and length).
- scattering especially means and/or includes the change of the propagation direction of light.
- converting especially means and/or includes the physical process of absorption of light and emitting of light in another wavelength area, e.g. due to radiative transitions that involve at least one ground state and at least one excited state and that may be described with a conf ⁇ gurational coordinate diagram showing the potential energy curves of absorbing and emitting centers as a function of the configurational coordinate.
- no conversion properties especially means and/or includes that >95%, more preferred >97%, more preferred >98% and most preferred >99% of all transmitted light passes the plate without being converted.
- Such an illumination system has shown for a wide range of applications within the present invention to have at least one of the following advantages: -
- the surprising result of one of the basic ideas underlying the present invention, i.e. separating scattering and converting is that for most application both a good forward emission together with an angular stability of the emission profile can be found.
- the overall setup of the illumination system can be kept simple and small -
- the lifetime of the illumination system is considerably extended because of improved heat dissipation properties and improved chemical stability additional functional layers can be applied on one layer only eliminating the risk of damaging the more expensive other layer.
- the second layer is in the optical path in between the primary light source and the first layer.
- the primary light source will in most applications be a blue LED; however, any devices known in the field to the skilled person in the art may be used.
- the first and/or second layer are essentially made out of a ceramic material.
- the term "essentially” in the sense of the present invention especially means >90 (wt.)-%, more preferably >95 (wt.)-%, yet more preferably >98 (wt.)-% and most preferred >99 (wt.)-%.
- ceramic material in the sense of the present invention means and/or includes especially a crystalline or polycrystalline compact material or composite material with a controlled amount of pores or which is pore free.
- polycrystalline material in the sense of the present invention means and/or includes especially a material with a volume density larger than 90 percent of the main constituent, consisting of more than 80 percent of single crystal domains, with each domain being larger than 0.5 ⁇ m in diameter and having different crystallographic orientations.
- the single crystal domains may be connected by amorphous or glassy material or by additional crystalline constituents.
- the ceramic material has a volume of > 0.005 mm 3 to ⁇ 8 mm 3 , more preferred > 0.03 mm 3 to ⁇ 1 mm 3 and most preferred > 0.08 mm 3 to ⁇ 0.18 mm 3 .
- the ceramic material has a density of >90% and ⁇ 100% of the theoretical density. This has been shown to be advantageous for a wide range of applications within the present invention since then the luminescent properties of the at least one ceramic material may be increased.
- the ceramic material has a density of >97% and ⁇ 100% of the theoretical density, yet more preferred >98% and ⁇ 100%, even more preferred >98.5% and ⁇ 100% and most preferred >99.0% and ⁇ 100%.
- the surface roughness RMS disruption of the planarity of a surface; measured as the geometric mean of the difference between highest and deepest surface features
- the surface(s) of the ceramic material is > 0.001 ⁇ m and ⁇ 1 ⁇ m.
- the surface roughness of the surface(s) of the at least one ceramic material is >0.005 ⁇ m and ⁇ 0.8 ⁇ m, according to an embodiment of the present invention >0.01 ⁇ m and ⁇ 0.5 ⁇ m, according to an embodiment of the present invention >0.02 ⁇ m and ⁇ 0.2 ⁇ m and according to an embodiment of the present invention >0.03 ⁇ m and ⁇ 0.15 ⁇ m.
- the specific surface area of the ceramic material is >10 "7 m 2 /g and ⁇ 0.1 m 2 /g.
- the thickness B of the second layer is >5 ⁇ m and ⁇ 80 ⁇ m. This has been shown to be advantageous for many applications within the present invention since by doing so the packing efficiency and side emission of the light scattering and conversion plate may greatly be increased and reduced, respectively.
- the thickness B of the second layer is >10 ⁇ m and ⁇ 50 ⁇ m.
- the thickness A of the first layer is
- the thickness A of the first layer is > 100 ⁇ m and ⁇ 300 ⁇ m.
- the scattering coefficient of the first layer is >0 and ⁇ IOOO cm "1 .
- the scattering coefficient s is determined by measurement of the reflectance Ro and/or the transmittance To of a thin layer with thickness A according to the equations:
- the scattering coefficient of the first layer is > 100 and ⁇ 500 cm "1 .
- the mean refractive index n of the first layer is >1.3 and ⁇ 2.5.
- the difference ⁇ n in refractive index between the refractive index of the first layer and the second layer is >0.03 and ⁇ 1. This has been shown to be advantageous for mixing the light from the primary light source and the converted light from the second layer for many applications.
- ⁇ n is >0.3 and ⁇ 0.5.
- the plate comprises a third layer provided in between the first and second layer and essentially made out of an adhesive material, preferably a silicone glue.
- This invention furthermore relates to method of producing a light scattering and conversion plate comprising the steps of a) Providing a first and second layer, whereby the thickness of the second layer is larger than desired b) Connecting the first and second layer, optionally by use of a third layer provided in between the first and second layer and essentially made out of an adhesive material c) Mechanically reducing the thickness of the second layer, e.g. by grinding By doing so, it has been shown for many applications that a light scattering and conversion plate according to the present invention can be made easily and effectfully even for small thicknesses of the second layer.
- An illumination system according to the present invention may be of use in a broad variety of systems and/or applications, amongst them one or more of the following:
- Fig. 1 shows a very schematic setup of an illumination system according to one embodiment of the present invention.
- Fig. 2 shows a detailled very schematic view of the light scattering and converting plate of Fig. 1
- Fig. 3 shows a photograph of a detail of a light scattering and converting plate according to Example I of the present invention.
- Fig.4 shows a photograph of a detail of a light scattering and converting plate according to Example II of the present invention.
- Fig. 5 shows the spatial radiation pattern of two LEDs according to Example I and II of the present invention and a comparative example
- Fig. 6 shows the Emission spectra of the two LEDs according to
- Example I and II of the present invention and the comparative example shows a CIE 1931 Chromaticity chart showing the Planckian locus of the two LEDs according to Example I and II of the present invention and the comparative example
- Fig. 1 shows a very schematic setup of an illumination system according to one embodiment of the present invention. Most of Fig. 1 is prior art and known to the skilled person and will therefore described only briefly. It is apparent that the illumination system of Fig. 1 is exemplarily only and the skilled person may use different parts or replace it at lib.
- the illumination system 1 comprises a thin film chip blue LED 20 upon which a light scattering and converting plate 10 is provided; both are covered by a lens.
- Fig. 2 shows a detailled very schematic view of the light scattering and converting plate of Fig. 1.
- the plate 10 comprises a first layer 12 (with a thickness A), a second layer 14 (with a thickness B) and in between a silicon glue layer 16.
- Fig. 2 is highly schematic and in most applications the actual dimensions will be much different. It is noted that the plate 10 is provided in the illumination system 1 so that the second layer 12 is in the optical path between the blue chip LED 20 and the second layer 14.
- Examples I and II which - in a merely illustrative fashion - shows several illumination systems of the present invention.
- a Y 288 Ce 0012 Al 5 O 12 layer (i.e. the second layer 14) was ground from both sides from a 1.1 mm thick wafer after sintering to 300 ⁇ m thickness.
- a 1 mm thick poly crystalline AI 2 O 3 layer (PCA, the first layer 12) with a mass density of 99.98 percent of the crystalline AI2O3 was ground to 150 ⁇ m.
- the first layer was coated with a Silicone layer (Shin Etsu KJR-9222A and KJR-9222A, mixing ratio 1 :1), the second layer was attached and the silicone layer was hardened at a temperature of 100 0 C for one hour and cured at 150 0 C for 2 hours.
- the second layer 14 was further ground to a thickness of 17 (Example I) and 30 ⁇ m (Example II), respectively. Then both plates were diced to 0.99 x 0.99 mm 2 , mount on a blue TFFC
- Example I was made in analogy to the inventive Examples.
- the second layer was set to a thickness of 120 ⁇ m and made out of Y 2842 Gd 0 15 Ce 0 O08 Al 5 O 12 (i,e. a lower Cerium- Content to match the higher thickness)
- Fig. 3 shows a photograph of a detail of a light scattering and converting plate according to Example I of the present invention.
- the light scattering and converting plate has an overall thickness of about 205 ⁇ m, whereby the first layer is about 140 ⁇ m thick, the second layer about 30 ⁇ m and the silicon layer about 35 ⁇ m.
- Fig.4 shows a photograph of a detail of a light scattering and converting plate according to Example II of the present invention.
- the light scattering and converting plate has also an overall thickness of about 205 ⁇ m; however, here the first layer is about 146 ⁇ m thick, the second layer about 17 ⁇ m and the silicon layer about 42 ⁇ m.
- Fig. 5 shows the spatial radiation pattern of the two LEDs according to Example I and II of the present invention and a comparative example. Due to emission from the faces of the Lumiramic converter plate of the comparative example the radiative flux under large emission angle is higher compared to the flux under large angles emitted by LEDs with converter plates of Example I and Example II of the present invention.
- Fig. 6 shows the Emission spectra of the two LEDs according to
- Example I and II of the present invention and the comparative example.
- the total conversion strength is low and the peak of the emitted blue light is much larger than the maximum of the converted light.
- the 30 ⁇ m Example both peaks are about equal, which shows the high efficacy of the light scattering and conversion plate.
- Fig. 7 shows a CIE 1931 Chromaticity chart showing the Planckian locus and the color points of the two LEDs according to the Example I and II of the present invention and the comparative example. It can be seen that due to the inventive scattering and light emitting plate a low color temperature of about 4000K has been realized with the 30 ⁇ m Example, whereas only a small change in size of the conversion layer 12 (i.e. to 17 ⁇ m) leads to a dramatic increase of color temperature to about 10000K. Variation of thickness and Cerium concentration gives access to white LED production of a color temperature ranging from above 10 00OK to 4000K and below.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Led Device Packages (AREA)
- Optical Elements Other Than Lenses (AREA)
- Luminescent Compositions (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Electroluminescent Light Sources (AREA)
- Planar Illumination Modules (AREA)
- Laminated Bodies (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10726270.1A EP2436047B1 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for leds |
BRPI1007686-7A BRPI1007686B1 (en) | 2009-05-19 | 2010-05-17 | lighting system |
RU2011151606/28A RU2531848C2 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversing plate for light emitting diode |
US13/320,803 US8721098B2 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for LEDs |
KR1020117030162A KR101747688B1 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for leds |
JP2012511387A JP2012527763A (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for LED |
CN201080021909.5A CN102428583B (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for LEDs |
US14/224,120 US9482411B2 (en) | 2009-05-19 | 2014-03-25 | Light scattering and conversion plate for LEDs |
US15/337,435 US9966512B2 (en) | 2009-05-19 | 2016-10-28 | Light scattering and conversion plate for LEDs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09160613 | 2009-05-19 | ||
EP09160613.7 | 2009-05-19 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/320,803 A-371-Of-International US8721098B2 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for LEDs |
US14/224,120 Continuation US9482411B2 (en) | 2009-05-19 | 2014-03-25 | Light scattering and conversion plate for LEDs |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010134011A2 true WO2010134011A2 (en) | 2010-11-25 |
WO2010134011A3 WO2010134011A3 (en) | 2011-01-13 |
Family
ID=42983411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2010/052167 WO2010134011A2 (en) | 2009-05-19 | 2010-05-17 | Light scattering and conversion plate for leds |
Country Status (8)
Country | Link |
---|---|
US (3) | US8721098B2 (en) |
EP (1) | EP2436047B1 (en) |
JP (1) | JP2012527763A (en) |
KR (1) | KR101747688B1 (en) |
CN (1) | CN102428583B (en) |
BR (1) | BRPI1007686B1 (en) |
RU (1) | RU2531848C2 (en) |
WO (1) | WO2010134011A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012089540A1 (en) * | 2010-12-28 | 2012-07-05 | Osram Opto Semiconductors Gmbh | Composite substrate, semiconductor chip having a composite substrate and method for producing composite substrates and semiconductor chips |
EP2482350A1 (en) * | 2011-02-01 | 2012-08-01 | Koninklijke Philips Electronics N.V. | LED assembly comprising a light scattering layer |
WO2012156514A1 (en) * | 2011-05-18 | 2012-11-22 | Osram Opto Semiconductors Gmbh | Optoelectronic semiconductor chip, optoelectronic semiconductor component, and a method for producing an optoelectronic semiconductor component |
EP2955764A4 (en) * | 2013-02-06 | 2016-10-05 | Koito Mfg Co Ltd | Light-emitting module |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI1007686B1 (en) * | 2009-05-19 | 2019-11-05 | Koninl Philips Electronics Nv | lighting system |
CN105776869A (en) * | 2014-12-17 | 2016-07-20 | 黄更生 | Glass ceramics for exciting white-light LED (Light Emitting Diode) lamps |
CN107805496A (en) * | 2017-10-24 | 2018-03-16 | 彩虹集团新能源股份有限公司 | A kind of preparation method of LED diffusion membrane material |
WO2020244857A1 (en) * | 2019-06-05 | 2020-12-10 | Lumileds Holding B.V. | Bonding of phosphor converter emitters |
JP7170917B2 (en) | 2019-06-25 | 2022-11-14 | ルミレッズ リミテッド ライアビリティ カンパニー | Phosphor layer for micro LED |
US11177420B2 (en) | 2019-10-09 | 2021-11-16 | Lumileds Llc | Optical coupling layer to improve output flux in LEDs |
US11362243B2 (en) | 2019-10-09 | 2022-06-14 | Lumileds Llc | Optical coupling layer to improve output flux in LEDs |
US11411146B2 (en) | 2020-10-08 | 2022-08-09 | Lumileds Llc | Protection layer for a light emitting diode |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10349038A1 (en) * | 2002-10-22 | 2004-05-13 | Osram Opto Semiconductors Gmbh | Light source used as a luminescence conversion-LED has a polycrystalline ceramic body acting completely or partially as a phosphor |
WO2006035353A2 (en) * | 2004-09-28 | 2006-04-06 | Philips Intellectual Property & Standards Gmbh | Light emitting device with improved conversion layer |
WO2008007232A2 (en) * | 2006-06-08 | 2008-01-17 | Koninklijke Philips Electronics N.V. | Light-emitting device |
US20080116467A1 (en) * | 2006-11-20 | 2008-05-22 | Philips Lumileds Lighting Company, Llc | Light Emitting Device Including Luminescent Ceramic and Light-Scattering Material |
DE102006061175A1 (en) * | 2006-12-22 | 2008-06-26 | Osram Opto Semiconductors Gmbh | Radiation-emitting semiconductor component has semiconductor chip and luminescence conversion element with luminescent material, which emits electromagnetic radiations |
US20090026908A1 (en) * | 2006-01-24 | 2009-01-29 | Koninklijke Philips Electronics N.V. | Light-emitting device |
US20090066221A1 (en) * | 2006-03-21 | 2009-03-12 | Koninklijke Philips Electronics N.V. | Electroluminescent device |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5695809A (en) | 1995-11-14 | 1997-12-09 | Micron Display Technology, Inc. | Sol-gel phosphors |
US6696703B2 (en) | 1999-09-27 | 2004-02-24 | Lumileds Lighting U.S., Llc | Thin film phosphor-converted light emitting diode device |
DE10351349A1 (en) * | 2003-10-31 | 2005-06-16 | Osram Opto Semiconductors Gmbh | Production of a luminescent diode chip applies a radiation decoupling surface and a semiconductor body with an epitaxial-grown sequence of semiconductor layers with an active zone |
US7361938B2 (en) | 2004-06-03 | 2008-04-22 | Philips Lumileds Lighting Company Llc | Luminescent ceramic for a light emitting device |
CN1988188A (en) | 2005-12-23 | 2007-06-27 | 香港应用科技研究院有限公司 | Light emitting diode crystal particle with fluorescence layer structure and its producing method |
KR100764148B1 (en) * | 2006-01-17 | 2007-10-05 | 루시미아 주식회사 | Sheet type phosphors, preparation method thereof, and light emitting devices using these phosphors |
JP4969119B2 (en) * | 2006-03-20 | 2012-07-04 | 日本碍子株式会社 | Light emitting diode device |
US7285791B2 (en) | 2006-03-24 | 2007-10-23 | Goldeneye, Inc. | Wavelength conversion chip for use in solid-state lighting and method for making same |
JP2007335798A (en) * | 2006-06-19 | 2007-12-27 | Toyoda Gosei Co Ltd | Light-emitting device |
JP2008103599A (en) * | 2006-10-20 | 2008-05-01 | Toyoda Gosei Co Ltd | Light-emitting device |
US20080121911A1 (en) * | 2006-11-28 | 2008-05-29 | Cree, Inc. | Optical preforms for solid state light emitting dice, and methods and systems for fabricating and assembling same |
US7902564B2 (en) * | 2006-12-22 | 2011-03-08 | Koninklijke Philips Electronics N.V. | Multi-grain luminescent ceramics for light emitting devices |
JP5347354B2 (en) | 2007-09-18 | 2013-11-20 | 日亜化学工業株式会社 | Fluorescent material molded body, method for manufacturing the same, and light emitting device |
CN101463975A (en) * | 2007-12-19 | 2009-06-24 | 富士迈半导体精密工业(上海)有限公司 | Solid state light source |
CN101577297A (en) * | 2008-05-09 | 2009-11-11 | 旭丽电子(广州)有限公司 | Luminous package structure and manufacturing method thereof |
RU84626U1 (en) * | 2008-07-23 | 2009-07-10 | Закрытое Акционерное Общество "Протон-Импульс" (ЗАО "Протон-Импульс") | SEMICONDUCTOR RADIATOR |
US8083364B2 (en) * | 2008-12-29 | 2011-12-27 | Osram Sylvania Inc. | Remote phosphor LED illumination system |
BRPI1007686B1 (en) * | 2009-05-19 | 2019-11-05 | Koninl Philips Electronics Nv | lighting system |
US8415692B2 (en) * | 2009-07-06 | 2013-04-09 | Cree, Inc. | LED packages with scattering particle regions |
US8547009B2 (en) * | 2009-07-10 | 2013-10-01 | Cree, Inc. | Lighting structures including diffuser particles comprising phosphor host materials |
US8723409B2 (en) * | 2010-04-07 | 2014-05-13 | Nichia Corporation | Light emitting device |
-
2010
- 2010-05-17 BR BRPI1007686-7A patent/BRPI1007686B1/en active IP Right Grant
- 2010-05-17 JP JP2012511387A patent/JP2012527763A/en active Pending
- 2010-05-17 CN CN201080021909.5A patent/CN102428583B/en active Active
- 2010-05-17 WO PCT/IB2010/052167 patent/WO2010134011A2/en active Application Filing
- 2010-05-17 EP EP10726270.1A patent/EP2436047B1/en active Active
- 2010-05-17 KR KR1020117030162A patent/KR101747688B1/en active IP Right Grant
- 2010-05-17 RU RU2011151606/28A patent/RU2531848C2/en active
- 2010-05-17 US US13/320,803 patent/US8721098B2/en active Active
-
2014
- 2014-03-25 US US14/224,120 patent/US9482411B2/en active Active
-
2016
- 2016-10-28 US US15/337,435 patent/US9966512B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10349038A1 (en) * | 2002-10-22 | 2004-05-13 | Osram Opto Semiconductors Gmbh | Light source used as a luminescence conversion-LED has a polycrystalline ceramic body acting completely or partially as a phosphor |
WO2006035353A2 (en) * | 2004-09-28 | 2006-04-06 | Philips Intellectual Property & Standards Gmbh | Light emitting device with improved conversion layer |
US20090026908A1 (en) * | 2006-01-24 | 2009-01-29 | Koninklijke Philips Electronics N.V. | Light-emitting device |
US20090066221A1 (en) * | 2006-03-21 | 2009-03-12 | Koninklijke Philips Electronics N.V. | Electroluminescent device |
WO2008007232A2 (en) * | 2006-06-08 | 2008-01-17 | Koninklijke Philips Electronics N.V. | Light-emitting device |
US20080116467A1 (en) * | 2006-11-20 | 2008-05-22 | Philips Lumileds Lighting Company, Llc | Light Emitting Device Including Luminescent Ceramic and Light-Scattering Material |
DE102006061175A1 (en) * | 2006-12-22 | 2008-06-26 | Osram Opto Semiconductors Gmbh | Radiation-emitting semiconductor component has semiconductor chip and luminescence conversion element with luminescent material, which emits electromagnetic radiations |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012089540A1 (en) * | 2010-12-28 | 2012-07-05 | Osram Opto Semiconductors Gmbh | Composite substrate, semiconductor chip having a composite substrate and method for producing composite substrates and semiconductor chips |
US9123528B2 (en) | 2010-12-28 | 2015-09-01 | Osram Opto Semiconductors Gmbh | Composite substrate, semiconductor chip having a composite substrate and method for producing composite substrates and semiconductor chips |
US9997671B2 (en) | 2010-12-28 | 2018-06-12 | Osram Opto Semiconductors Gmbh | Composite substrate, semiconductor chip having a composite substrate and method for producing composite substrates and semiconductor chips |
EP2482350A1 (en) * | 2011-02-01 | 2012-08-01 | Koninklijke Philips Electronics N.V. | LED assembly comprising a light scattering layer |
WO2012104744A1 (en) * | 2011-02-01 | 2012-08-09 | Koninklijke Philips Electronics N.V. | Led assembly comprising a light scattering layer |
US9214609B2 (en) | 2011-02-01 | 2015-12-15 | Koninklijke Philips N.V. | LED assembly comprising a light scattering layer |
RU2586268C2 (en) * | 2011-02-01 | 2016-06-10 | Конинклейке Филипс Электроникс Н.В. | Light-emitting diode assembly, including light-scattering layer |
WO2012156514A1 (en) * | 2011-05-18 | 2012-11-22 | Osram Opto Semiconductors Gmbh | Optoelectronic semiconductor chip, optoelectronic semiconductor component, and a method for producing an optoelectronic semiconductor component |
US9444022B2 (en) | 2011-05-18 | 2016-09-13 | Osram Opto Semiconductors Gmbh | Optoelectronic semiconductor chip, optoelectronic semiconductor component, and a method for producing an optoelectronic semiconductor component |
US9882097B2 (en) | 2011-05-18 | 2018-01-30 | Osram Opto Semiconductors Gmbh | Optoelectronic semiconductor chip, optoelectronic semiconductor component, and a method for producing an optoelectronic semiconductor component |
EP2955764A4 (en) * | 2013-02-06 | 2016-10-05 | Koito Mfg Co Ltd | Light-emitting module |
Also Published As
Publication number | Publication date |
---|---|
BRPI1007686B1 (en) | 2019-11-05 |
CN102428583B (en) | 2015-06-03 |
US9482411B2 (en) | 2016-11-01 |
KR20120030425A (en) | 2012-03-28 |
US20120069546A1 (en) | 2012-03-22 |
WO2010134011A3 (en) | 2011-01-13 |
RU2531848C2 (en) | 2014-10-27 |
US20140204593A1 (en) | 2014-07-24 |
US9966512B2 (en) | 2018-05-08 |
BRPI1007686A2 (en) | 2016-12-27 |
EP2436047B1 (en) | 2013-10-09 |
CN102428583A (en) | 2012-04-25 |
US8721098B2 (en) | 2014-05-13 |
RU2011151606A (en) | 2013-06-27 |
US20170047491A1 (en) | 2017-02-16 |
JP2012527763A (en) | 2012-11-08 |
EP2436047A2 (en) | 2012-04-04 |
KR101747688B1 (en) | 2017-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9966512B2 (en) | Light scattering and conversion plate for LEDs | |
RU2436829C2 (en) | Electroluminescent device | |
EP2109652B1 (en) | Red emitting luminescent material | |
JP5833547B2 (en) | Luminescent ceramic and light emitting device using the same | |
CN107109220B (en) | Phosphor converted LED with temperature stable flux and saturated red color point | |
KR101437839B1 (en) | Electroluminescent device | |
US20120068213A1 (en) | Light emissive ceramic laminate and method of making same | |
JP6821655B2 (en) | Fluorescent member and light emitting module | |
WO2008056292A1 (en) | Arrangement for emitting mixed light | |
TW200425531A (en) | Methods of making phosphor based light sources having an interference reflector | |
RU2425433C2 (en) | Optically active composition and light-emitting combined device based on said composition | |
US20100181585A1 (en) | Illumination system comprising a compound with low thermal expansion coefficient | |
TWI823976B (en) | Wavelength conversion elements, methods of making the same, light conversion devices, and methods for generating white light | |
JP6524474B2 (en) | Wavelength conversion member and light emitting device | |
TW201723148A (en) | Stable red ceramic phosphors and technologies including the same | |
WO2008129454A2 (en) | White emitting light source and luminescent material with improved colour stability | |
US11101409B2 (en) | Phosphor converted LED | |
JPWO2020044426A1 (en) | Fluorescent element and lighting device | |
JP7322306B1 (en) | ceramic phosphor array | |
JP6866537B2 (en) | Single-sided lighting of high lumen density lamps | |
JP7143523B2 (en) | Methods for manufacturing conversion elements, conversion elements and radioactive components | |
WO2014010211A1 (en) | Light emitting module |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 201080021909.5 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10726270 Country of ref document: EP Kind code of ref document: A2 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2010726270 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012511387 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13320803 Country of ref document: US |
|
NENP | Non-entry into the national phase in: |
Ref country code: DE |
|
ENP | Entry into the national phase in: |
Ref document number: 20117030162 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 9449/CHENP/2011 Country of ref document: IN |
|
ENP | Entry into the national phase in: |
Ref document number: 2011151606 Country of ref document: RU Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: PI1007686 Country of ref document: BR |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01E Ref document number: PI1007686 Country of ref document: BR Free format text: IDENTIFICAR, EM ATE 60 (SESSENTA) DIAS, E COMPROVAR QUE O SIGNATARIO DO FORMULARIO 1.03 DA PETICAO NO 018110044341 DE 16/11/2011 TEM PODERES PARA ATUAR EM NOME DO DEPOSITANTE, UMA VEZ QUE NAO FOI POSSIVEL IDENTIFICAR O NOME DO RESPONSAVEL PELA ASSINATURA DO FORMULARIO, NAO SENDO, ENTAO, POSSIVEL DETERMINAR SE ELE FAZ PARTE DOS PROCURADORES ELENCADOS NA PROCURACAO E O ARTIGO 216 DA LEI 9.279/1996 DE 14/05/1996 (LPI) DETERMINA QUE OS ATOS PREVISTOS NESTA LEI SERAO PRATICADOS PELAS PARTES OU POR SEUS PROCURADORES, DEVIDAMENTE QUALIFICADOS. |
|
ENP | Entry into the national phase in: |
Ref document number: PI1007686 Country of ref document: BR Kind code of ref document: A2 Effective date: 20111116 |