US20080029720A1 - LED lighting arrangement including light emitting phosphor - Google Patents

LED lighting arrangement including light emitting phosphor Download PDF

Info

Publication number
US20080029720A1
US20080029720A1 US11640533 US64053306A US2008029720A1 US 20080029720 A1 US20080029720 A1 US 20080029720A1 US 11640533 US11640533 US 11640533 US 64053306 A US64053306 A US 64053306A US 2008029720 A1 US2008029720 A1 US 2008029720A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
phosphor
optical component
surface
comprises
lighting arrangement
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.)
Abandoned
Application number
US11640533
Inventor
Yi-Qun Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intematix Corp
Original Assignee
Intematix Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L33/00Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48Semiconductor devices with at least one potential-jump barrier or surface barrier 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
    • H01L33/50Wavelength conversion elements
    • H01L33/501Wavelength conversion elements characterised by the materials, e.g. binder
    • H01L33/502Wavelength conversion materials
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0883Arsenides; Nitrides; Phosphides
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals comprising europium
    • C09K11/7734Aluminates; Silicates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals comprising europium
    • C09K11/7741Sulfates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; MISCELLANEOUS COMPOSITIONS; MISCELLANEOUS APPLICATIONS OF MATERIALS
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/7774Aluminates; Silicates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00Globes; Bowls; Cover glasses
    • F21V3/04Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/10Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings
    • F21V3/12Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by coatings the coatings comprising photoluminescent substances
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • F21V5/041Ball lenses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30Elements containing photoluminescent material distinct from or spaced from the light source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2101/00Point-like light sources
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/30Semiconductor lasers
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L2933/00Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0008Processes
    • H01L2933/0041Processes relating to wavelength conversion elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264Up to 3 mils
    • Y10T428/2651 mil or less
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31511Of epoxy ether
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31652Of asbestos
    • Y10T428/31663As siloxane, silicone or silane

Abstract

A lighting arrangement (20) comprises: a radiation source, LED chip, (22) configured to emit radiation having a first wavelength range; a phosphor, photoluminescent material, (30) configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and an optical component, lens, (26) through which at least said first wavelength range radiation passes. The LED is characterized in that the phosphor is provided on a surface (28) of the optical component.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • This invention relates to solid-state lighting applications which comprise light emitting diodes (LEDs) which include a light emitting phosphor, photoluminescent material, to generate light of a desired color, that is in a different part of the wavelength spectrum from the LEDs. In particular, although not exclusively, the invention concerns LED-based lighting arrangements which generate light in the visible part of the spectrum and in particular, although not exclusively white light. Moreover the invention provides an optical component for such a lighting arrangement and methods of fabricating a lighting arrangement and an optical component. Furthermore the invention provides a phosphor material for coating an optical component or as a part of optical designs in lighting arrangements.
  • 2. State of the Art
  • In the context of this patent application light is defined as electromagnetic radiation in a wavelength range 300 nm (Ultraviolet) to 1000 nm (Infrared). Primarily, although not exclusively the invention concerns lighting arrangements which emit light in the visible part of the spectrum that is 380 to 750 nm.
  • White light emitting diodes (LEDs) are known in the art and are a relatively recent innovation. It was not until LEDs emitting in the blue/ultraviolet of the electromagnetic spectrum were developed that it became practical to develop white light sources based on LEDs. As is known white light generating LEDs (“white LEDs”) include a phosphor, that is a photoluminescent material, which absorbs a portion of the radiation emitted by the LED and re-emits radiation of a different color (wavelength). For example the LED emits blue light in the visible part of the spectrum and the phosphor re-emits yellow light. Alternatively the phosphor can emit a combination of green and red light, green and yellow or yellow and red light. The portion of the visible blue light emitted by the LED which is not absorbed by the phosphor mixes with the yellow light emitted to provide light which appears to the eye as being white. A known yellow phosphor is a YAG-based phosphor having a main emission wavelength peak that varies in wavelength range from 530 to 590 nm depending on the composition of the phosphors. Further examples of phosphors are described in our co-pending patent application U.S. 2006/0028122 in which the photoluminescent materials have a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N. Such phosphors emit light of intensities that are greater than either known YAG compounds or silicate-based phosphors.
  • It is predicted that white LEDs could potentially replace incandescent light sources due to their long operating lifetimes, typically many 100,000 of hours, and their high efficiency. Already high brightness LEDs are used in vehicle brake lights and indicators as well as traffic lights and flash lights.
  • To increase the intensity of light emitted from an LED it is known to include a lens made of a plastics material or glass to focus the light emission and to thereby increase intensity. Referring to FIG. 1 a high brightness white LED 2 is shown. The LED 2 comprises an LED chip 4 which is mounted within a plastic or metal reflection cup 6 and the LED chip is then encapsulated within an encapsulating material, typically an epoxy resin 8. The encapsulation material includes the phosphor material for providing color conversion. Typically the inner surface of the cup 6 is silvered to reflect stray light towards a lens 10 which is mounted on the surface of the encapsulating epoxy resin 8.
  • The inventor has appreciated that such an arrangement has limitations and the present invention arose in an endeavor to mitigate, at least in part, these limitations. For example for high intensity LEDs having a high intensity output larger than 1 W, the high temperature at the output of the LED combined with its close proximity the phosphor material can give rise to a light characteristic which is temperature dependent and in some cases thermal degradation of the phosphor material can occur. Moreover the uniformity of color of light emitted by such LEDs can be difficult to maintain with the phosphor distributed within the epoxy resin since light passing through different path lengths will encounter and be absorbed by differing amounts of phosphor. Furthermore the fabrication of such LEDs is time consuming due to the encapsulation and subsequent placement of the lens.
  • SUMMARY OF THE INVENTION
  • According to a first aspect of the invention there is provided a lighting arrangement comprising: a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and an optical component through which at least said first wavelength range radiation passes, characterized in that the phosphor is provided on a surface of the optical component. The invention provides the advantage of reducing the manufacturing steps and hence cost and also provides a more uniform color of output light.
  • Advantageously the phosphor is provided as a substantially uniform thickness layer on said surface of the optical component. Such an arrangement ensures a more uniform color of emitted light.
  • The optical component can have a number of forms and typically comprises a lens for focusing the radiation to increase the intensity of the emitted light. Alternatively the optical component can be for directing the radiation thus acting as a waveguide or as a window through which the radiation passes. The phosphor can be provided on inner or outer surfaces of the optical component and this will determine whether said second wavelength range radiation also passes through the optical component. For example in one implementation the optical component has a substantially planar surface and the phosphor is provided on said substantially planar surface. An advantage of applying the phosphor to the planar surface is that it is easier to produce a uniform thickness layer. Alternatively the optical component can have a convex or concave surface and the phosphor is provided on said convex or concave surfaces.
  • In one implementation the optical component has a substantially hemispherical surface and the phosphor is provided on said hemispherical surface. Preferably, the optical component comprises a substantially hemispherical shell and the phosphor is provided on the inner hemispherical surface. Alternatively the phosphor can be provided on at least a part of the outer hemispherical surface. In a further alternative embodiment the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the inner or outer spherical surfaces. Such a form finds particular application as a light source for replacing incandescent light sources. In yet a further embodiment the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the inner or outer surfaces.
  • Advantageously, the optical component is made of a plastics material such as a polycarbonate and silicone or a glass such as a silica-based glass. The optical component comprises a material which is at least substantially transparent to said first wavelength range radiation and where the phosphor is provided on an inner surface of the component the material is further substantially transparent to the second wavelength range radiation.
  • In a preferred implementation the phosphor comprises a powder which is incorporated within an epoxy resin, a silicone material or a polymer material to form a mixture and the phosphor mixture is then applied to the optical component to form a layer of phosphor on the optical component surface. To improve the uniformity of light emitted from the lighting arrangement the phosphor mixture advantageously further incorporates a light diffusing material such as titanium oxide, silica, alumina, etc. Such a light diffusing material has as low an absorption of light as possible.
  • The phosphor advantageously comprises a phosphor which emits luminescent light when illuminated by radiation in wavelength range from 300 nm to 550 nm. One example of the phosphor advantageously comprises a YAG-based phosphor which comprises a photoluminescent material having a formula (YA)3(AlB)5(OC)12:Ce3+ where A is a trivalent metal selected from the group comprising Gd, Tb, La, Sm or divalent metal ions such as Sr, Ca, Ba, Mg, Zn and Cd, B comprising Si, B, P, and Ga and C is a dopant selected from the group comprising F, Cl, Br, I, P, S and N. In another implementation the phosphor comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group comprising Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group comprising F, Cl, Br, I, P, S and N.
  • In yet a further embodiment an orange-red silicate-based phosphor having a formula (SrM1)3Si(OD)5:Eu where M1 is selected from the group comprising Ba, Ca, Mg, Zn . . . and where D is selected from the group comprising F, Cl, S, and N. Such a phosphor is advantageously used for emitting light in a wavelength range from green to yellow (580 to 630 nm).
  • Alternatively the phosphor comprises a red silicon nitride based phosphor having a formula (SrM1)Si5N8 where M1 is selected from the group comprising Sr, Ca, Mg, and Zn.
  • In another embodiment the phosphor comprises a red sulfate based phosphor having a formula of (SrM1)S where M1 is selected from the group comprising Ca, Ba, and Mg.
  • In yet another embodiment the phosphor can comprise a green sulfate based phosphor having a formula of (SrM1)(GaM2)2S4:Eu where M1 is selected from the group comprising Ca, Ba, and Mg, and M2 is selected from the group comprising Al and In.
  • Preferably, the radiation source comprises a light emitting diode, advantageously a Gallium Nitride based LED.
  • The present invention finds particular application for white light sources and the radiation source is operable to emit radiation having a wavelength range of 300 to 500 nm. Preferably, the phosphor composition is configured to emit radiation having a wavelength ranging from 450 to 700 nm.
  • According to a second aspect of the invention there is provided an optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component configured such that at least said first wavelength range radiation passes through the optical component, and characterized in that said phosphor is provided on a surface of said optical component.
  • Such an optical component provides the advantages of reducing the manufacturing steps and hence cost and emits a more uniform color light. Moreover such an optical component can be used to provide direct color conversion in an LED arrangement.
  • To ensure the uniformity of color of light generated by the optical component, the phosphor is advantageously provided as a substantially uniform thickness layer on said surface of the optical component.
  • For ease of fabrication the optical component preferably has a substantially planar surface and the phosphor is provided on said substantially planar surface. Alternatively, the optical component has a convex or concave surface and the phosphor is provided on said convex or concave surfaces by for example spraying or printing related coating methods.
  • In one implementation the optical component has a substantially hemispherical surface and the phosphor is provided on said hemispherical surface. The optical component can comprise a substantially hemispherical shell and the phosphor is provided on the inner hemispherical surface. Such an arrangement provides environmental protection of the phosphor. Alternatively, the phosphor is provided on the outer hemispherical surface. In a further embodiment the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the inner or outer spherical surfaces. In yet a further implementation the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the inner or outer surfaces.
  • Preferably, the phosphor comprises a powder which is incorporated within an epoxy resin, a silicone material or a polymer material to form a mixture and then the phosphor mixture is applied to the optical component to form a layer of phosphor on the optical component surface. To ensure a uniform light intensity output the phosphor mixture advantageously further comprises a light diffusing material.
  • Preferably, the optical component is fabricated from a plastics material or a glass.
  • The phosphor advantageously comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group comprising Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group comprising F, Cl, Br, I, P, S and N.
  • According to third aspect of the invention there is provided a method of fabricating a lighting arrangement comprising: providing a radiation source configured to emit radiation having a first wavelength range and an optical component through which said radiation passes; and providing on a surface of the optical component a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range.
  • Advantageously the method further comprises providing the phosphor as a substantially uniform thickness layer on said surface of the optical component.
  • The optical component can have a substantially planar surface, convex or concave surfaces and the method comprises providing the phosphor on said substantially planar surface, convex or concave surfaces.
  • In one implementation the optical component has a substantially hemispherical surface and the method comprises providing the phosphor on said hemispherical surface. Preferably, the optical component comprises a substantially hemispherical shell and the method comprises providing the phosphor on the inner or outer hemispherical surfaces. Alternatively, the optical component can comprise a substantially spherical shell and the method comprises providing the phosphor on at least a part of the inner or outer spherical surfaces. In a further alternative arrangement the optical component comprises a hollow cylinder and the method comprises providing the phosphor on at least a part of the inner or outer surfaces.
  • The optical component is preferably fabricated from a plastics material or glass.
  • According to a further aspect of the invention there is provided a method of fabricating an optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component being configured such that at least said first wavelength range radiation passes through the optical component the method comprising providing said phosphor on a surface of the optical component.
  • To ensure uniform color conversion the method advantageously comprises providing the phosphor as a substantially uniform thickness layer.
  • When the optical component has a substantially planar surface the method preferably comprises providing the phosphor on said substantially planar surface.
  • Alternatively where the optical component has a convex or concave surface the method can comprise providing the phosphor on said convex or concave surfaces.
  • In yet a further alternative arrangement the optical component has a substantially hemispherical surface and the method comprises providing the phosphor on said hemispherical surface. Where the optical component comprises a substantially hemispherical shell the method comprises providing the phosphor on the inner or outer hemispherical surfaces. Moreover where the optical component comprises a substantially spherical shell the method comprises providing the phosphor on at least a part of the inner or outer spherical surfaces. Alternatively the optical component can comprise a hollow cylinder and the method comprises providing the phosphor on at least a part of the inner or outer surfaces.
  • In a preferred method the phosphor comprises a powder and the method comprises incorporating the phosphor within an epoxy resin or silicone material or polymer material to form a mixture and then applying the phosphor mixture to the optical component to form a layer of phosphor on the optical component surface. The mixture can be applied by painting the mixture onto the surface of the optical component, spraying or other known deposition techniques. When the phosphor is to be applied to a planar surface the optical component is then advantageously spun or tape casting to distribute the mixture uniformly over the surface to thereby ensure a uniform thickness of phosphor forms.
  • Advantageously the method further comprises incorporating a light diffusing material, for example titanium oxide, silica, alumina in the phosphor mixture. Alternatively the light diffusing material can be provided as a separate layer.
  • Advantageously, the phosphor comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group comprising Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group comprising F, Cl, Br, I, P, S and N.
  • The method further comprises fabricating the optical component from a plastics material or glass.
  • For ease of fabrication, and in accordance with a particularly preferred method of the invention a plurality of optical components in the form of an array, said array of optical components having a common planar surface, and said phosphor is deposited on the planar surface. Advantageously, the phosphor is provided as a substantially uniform thickness layer on said planar surface of the array of optical components.
  • In accordance with a further aspect of the invention there is provided a phosphor material for coating an optical component of an LED comprising a phosphor powder incorporated within an epoxy resin, a silicone material or a polymer material. Advantageously the phosphor material further incorporates a light diffusing material.
  • In accordance with yet a further aspect of the invention there is provided an optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component being configured such that at least said first wavelength range radiation passes through the optical component, and characterized in that said phosphor is incorporated in said optical component.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a schematic representation of a known white LED as already described;
  • FIGS. 2 to 7 are schematic representations of LED lighting arrangements in accordance with the invention; and
  • FIG. 8 is a schematic representation of a method of fabricating an optical component for an LED lighting arrangement in accordance with the invention.
  • DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION
  • In order that the present invention is better understood, embodiments of the invention will now be described by way of example only with reference to the accompanying drawings.
  • Referring to FIG. 2 there is shown a LED lighting arrangement 20 in accordance with the invention. The LED lighting arrangement 20 is for generating light of a selected color for example white light. The lighting arrangement comprises a LED chip 22, preferably a Gallium Nitride chip, which is operable to produce light, radiation, preferably of wavelength in a range 300 to 500 nm. The LED chip 22 is mounted inside a stainless steel enclosure or reflection cup 24 which has metallic silver deposited on its inner surface to reflect light towards the output of the lighting arrangement. A convex lens 26 is provided to focus light output from the arrangement. In the example illustrated the lens 26 is substantially hemispherical in form. The lens 26 can be made of a plastics material such as polycarbonates or glass such as silica based glass or any material substantially transparent to the wavelengths of light generated by the LED chip 22.
  • In the embodiment in FIG. 2 the lens 26 has a planar, substantially flat, surface 28 onto which there is provided a layer of phosphor 30 before the lens is mounted to the enclosure 22. The phosphor 30 preferably comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group comprising Sr (Strontium), Ca (Calcium), Ba (Barium), Mg (Magnesium), Zn (Zinc) and Cd (Cadmium) and D is a dopant selected from the group comprising F (Fluorine), Cl (Chlorine), Br (Bromine), I (Iodine), P (Phosphorous), S (Sulfur) and N (Nitrogen) as disclosed in our co-pending patent application U.S. 2006/0028122 the content of which is hereby incorporated by way of reference thereto. The phosphor which is in the form of a powder is mixed with an adhesive material such as epoxy or a silicone resin, or a transparent polymer material and the mixture is then applied to the surface of the lens to provide the phosphor layer 30. The mixture can be applied by painting, dropping or spraying or other deposition techniques which will be readily apparent to those skilled in the art. Moreover the phosphor mixture preferably further includes a light diffusing material such as titanium oxide, silica or alumina to ensure a more uniform light output.
  • The color of light emitted from the lighting arrangement can be controlled by appropriate selection of the phosphor composition as well as the thickness of the phosphor layer which will determine the proportion of output light originating from the phosphor. To ensure a uniform output color the phosphor layer is preferably of uniform thickness and has a typical thickness in a range 20 to 500 μm.
  • An advantage of the lighting arrangement of the invention is that no phosphor need be incorporated within the encapsulation materials in the LED package. Moreover the color of the light output by the arrangement can be readily changed by providing a different lens having an appropriate phosphor layer. This enables large scale production of a common laser package. Moreover such a lens provides direct color conversion in an LED lighting arrangement.
  • Referring to FIG. 3 there is shown an LED lighting arrangement in accordance with a further embodiment in which the phosphor 30 is provided as a layer on the outer convex surface 32 of the lens 26. In this embodiment the lens 26 is dome shaped in form.
  • FIG. 4 shows an LED lighting arrangement in accordance with a further embodiment in which the lens 26 comprises a substantially hemispherical shell and the phosphor 30 is provided on the inner surface 34 of the lens 26. An advantage of providing the phosphor on the inner surface is that the lens 26 then provides environmental protection for the LED and phosphor. Alternatively the phosphor can be applied as a layer of the outer surface of the lens 26 (not shown).
  • FIG. 5 illustrates an LED arrangement in which the lens 26, optical component, comprises a substantially spherical shell and the phosphor 30 is deposited as a layer on at least a part of the inner 36 or outer spherical 38 surfaces and the LED chip 22 is mounted within the spherical shell. To ensure uniform emission of radiation a plurality of LED chips are advantageously incorporated in which the chip are oriented such that they each emit light in differing directions. Such a form is preferred as a light source for replacing existing incandescent light sources (light bulbs).
  • Referring to FIG. 6 there is shown a further arrangement in which the optical component 26 comprises a hollow cylindrical form and the phosphor is applied to the inner 40 or outer 42 curved surfaces. In such an arrangement the laser chip preferably comprises a linear array of laser chips that are arranged along the axis of the cylinder. Alternatively the lens 26 can comprise a solid cylinder (not shown).
  • FIG. 7 shows an LED arrangement in which the optical component comprise a solid substantially spherical lens 26 and the phosphor is provided on at least a part of the spherical surface 44. In a preferred arrangement, as illustrated, the phosphor is applied to only a portion of the surface, which surface is then mounted within the volume defined by the enclosure. By mounting the lens 26 in this way this provides environmental protection of the phosphor 30.
  • Referring to FIG. 8 there is shown a preferred method of fabricating lenses in accordance with the invention. An array of lenses 46 is provided in which the lenses have a common planar surface 48 onto which the phosphor 30 is provided. In the example illustrated the lenses 36 are substantially hemispherical in form. After the phosphor has been deposited the lenses can be separated and mounted to the LED assemblies. Such a method is found to be particularly advantageous for mass production of the optical components.
  • It will be appreciated that the present invention is not restricted to the specific embodiments described and that modifications can be made which are within the scope of the invention. For example although in the foregoing description reference is made to a lens the phosphor can be deposited onto other optical components such as for example a window through which light passes though is not necessarily focused or directed or a waveguide which guides, directs, light. Moreover the optical component can have many forms which will be readily apparent to those skilled in the art.
  • It will be appreciated that the phosphor and LED chip can be selected depending on the intended application to provide light of a desired color. It is also envisaged to provide two or more phosphor materials to achieve the desired color, spectral content, of emitted light. The different phosphors can be provided by mixing the powdered material and incorporating them within a single layer or alternatively by providing multiple layers of different phosphors.
  • Examples of preferred phosphors are:
      • YAG-based phosphors which comprising a photoluminescent material having a formula (YA)3(AlB)5(OC)12:Ce3+ where A is a trivalent metal selected from the group comprising Gd (Gadolinium), Tb (Terbium), La (Lanthanum), Sm (Samarium) or divalent metal ions such as Sr (Strontium), Ca (Calcium), Ba (Barium), Mg (Magnesium), Zn (Zinc) and Cd (Cadmium), B comprising Si (Silicon), B (Boron), P (phosphorous), and Ga (Gadolinium) and C is a dopant selected from the group comprising F (Fluorine), Cl (Chlorine), Br (Bromine), I (Iodine), P (phosphorous), S (Sulfur) and N (Nitrogen);
      • orange-red silicate-based phosphors of general formula (SrM1)3Si(OD)5:Eu where M1 is selected from the group comprising Ba, Ca, Mg, Zn . . . and D is selected from the group comprising F, Cl, S, and N (such a phosphor can be used for emitting light in a wavelength range from green to yellow (580 to 630 nm));
  • red silicon nitride based phosphors of general formula of (SrM1)Si5N8 where M1 is selected from the group comprising Sr, Ca, Mg, and Zn;
      • red sulfate based phosphors having a general formula (SrM1)S where M1 is selected from the group comprising Ca, Ba, and Mg; and
  • green sulfate based phosphors having a general formula (SrM1)(GaM2)2S4:Eu where M1 is selected from the group comprising Ca, Ba, and Mg, and where M2 is selected from the group comprising Al and In.
  • In addition to providing an LED lighting arrangement the invention further provides a novel optical component and method of fabrication thereof.
  • In a further embodiment it is also envisaged to incorporate the phosphor within material comprising the optical component. Moreover the phosphor can be provided as a layer on the encapsulating material.

Claims (85)

  1. 1. A lighting arrangement comprising: a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and an optical component through which at least said first wavelength range radiation passes, characterized in that the phosphor is provided on a surface of the optical component.
  2. 2. The lighting arrangement according to claim 1, in which the phosphor is provided as a substantially uniform thickness layer on said surface of the optical component.
  3. 3. The lighting arrangement according to claim 1 or claim 2, in which the optical component has a substantially planar surface and the phosphor is provided on said substantially planar surface.
  4. 4. The lighting arrangement according to claim 1 or claim 2, in which the optical component has a convex surface and the phosphor is provided on said convex surface.
  5. 5. The lighting arrangement according to claim 1 or claim 2, in which the optical component has a concave surface and the phosphor is provided on said concave surface.
  6. 6. The lighting arrangement according to claim 1 or claim 2, in which the optical component has a substantially hemispherical surface and the phosphor is provided on said hemispherical surface.
  7. 7. The lighting arrangement according to claim 6, in which the optical component comprises a substantially hemispherical shell and the phosphor is provided on the inner hemispherical surface.
  8. 8. The lighting arrangement according to claim 6, in which the optical component comprises a substantially hemispherical shell and the phosphor is provided on at least a part of the outer hemispherical surface.
  9. 9. The lighting arrangement according to claim 1 or claim 2, in which the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the inner spherical surface.
  10. 10. The lighting arrangement according to claim 1 or claim 2, in which the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the outer spherical surface.
  11. 11. The lighting arrangement according to claim 1 or claim 2, in which the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the inner surface.
  12. 12. The lighting arrangement according to claim 1 or claim 2, in which the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the outer surface.
  13. 13. The lighting arrangement according to claim 1 to 2, in which the optical component is made from one of a plastics material, glass.
  14. 14. The lighting arrangement according to claim 1, in which the phosphor comprises a powder which is incorporated within one of an epoxy resin, a silicone material and a polymer material to form a mixture and in which the phosphor mixture is applied to the optical component to form a layer of phosphor on the optical component surface.
  15. 15. The lighting arrangement according to claim 14, and further comprising incorporating a light diffusing material with the phosphor powder.
  16. 16. The lighting arrangement according to any of claims 1, 2, 14 or 15, in which the phosphor comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  17. 17. The lighting arrangement according to any one of claims 1, 2, 14 or 15, in which the phosphor comprises a photoluminescent material having a formula (YA)3(AlB)5(OC)12:Ce3+ where A is a trivalent metal selected from the group consisting of Gd, Tb, La, Sm or divalent metal ions such as Sr, Ca, Ba, Mg, Zn and Cd; B is selected from the group consisting of Si, B, P, and Ga; and C is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  18. 18. The lighting arrangement according to any one of claims 1, 2, 14 or 15, in which the phosphor comprises an orange-red silicate-based phosphor having a formula (SrM1)3Si(OD)5:Eu where M1 is selected from the group consisting of Ba, Ca, Mg, Zn . . . ; and D is selected from the group consisting of F, Cl, S, and N.
  19. 19. The lighting arrangement according to any one of claims 1, 2 14 or 15, in which the phosphor comprises a red silicon nitride based phosphor having a formula (SrM1)Si5N8 where M1 is selected from the group consisting Sr, Ca, Mg, and Zn.
  20. 20. The lighting arrangement according to any one of claims 1, 2, 14 or 15, in which the phosphor comprises a red sulfate based phosphor having a formula (SrM1)S where M1 is selected from the group consisting of Ca, Ba, and Mg.
  21. 21. The lighting arrangement according to any one of claims 1, 2 14 or 15, in which the phosphor comprises a green sulfate based phosphor having a formula (SrM1)(GaM2)2S4:Eu where M1 is selected from the group consisting of Ca, Ba, and Mg, and M2 is selected from the group consisting of Al and In.
  22. 22. The lighting arrangement according to claim 1, in which the radiation source comprises a light emitting diode.
  23. 23. The lighting arrangement according to claim 1, in which said LED chip comprises a Gallium Nitride LED.
  24. 24. The lighting arrangement according to claim 1, in which said radiation source is operable to emit radiation having a wavelength range of 300 to 500 nm.
  25. 25. The lighting arrangement according to claim 1, in which the phosphor is configured to emit radiation having a wavelength ranging from 450 to 700 nm.
  26. 26. An optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component being configured such that at least said first wavelength range radiation passes though the optical component, and characterized in that said phosphor is provided on a surface of said optical component.
  27. 27. The optical component according to claim 26, in which the phosphor is provided as a substantially uniform thickness layer on said surface of the optical component.
  28. 28. The optical component according to claim 26 or claim 27, in which the optical component has a substantially planar surface and the phosphor is provided on said substantially planar surface.
  29. 29. The optical component according to claim 26 or claim 27, in which the optical component has a convex surface and the phosphor is provided on said convex surface.
  30. 30. The optical component according to claim 26 or claim 27, in which the optical component has a concave surface and the phosphor is provided on said concave surface.
  31. 31. The optical component according to claim 26 or claim 27, in which the optical component has a substantially hemispherical surface and the phosphor is provided on said hemispherical surface.
  32. 32. The optical component according to claim 31, in which the optical component comprises a substantially hemispherical shell and the phosphor is provided on the inner hemispherical surface.
  33. 33. The optical component according to claim 31, in which the optical component comprises a substantially hemispherical shell and the phosphor is provided on at least a part of the outer hemispherical surface.
  34. 34. The optical component according to claim 26 or claim 27, in which the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the inner spherical surface.
  35. 35. The optical component according to claim 26 or claim 27, in which the optical component comprises a substantially spherical shell and the phosphor is provided on at least a part of the outer spherical surface.
  36. 36. The optical component according to claim 26 or claim 27, in which the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the inner surface.
  37. 37. The optical component according to claim 26 or claim 27 in which the optical component comprises a hollow cylinder and the phosphor is provided on at least a part of the outer surface.
  38. 38. The optical component according to claim 26 or 27, in which the phosphor comprises a powder which is incorporated within one of an epoxy resin, a silicone material and a polymer material to form a mixture and in which the phosphor mixture is applied to the optical component to form a layer of phosphor on the optical component surface.
  39. 39. The optical component according to claim 38, and further comprising a light diffusing material with the phosphor powder.
  40. 40. The optical component according to claim 26 or 27, in which the optical component is fabricated from one of a plastics material, a glass.
  41. 41. The optical component according to claim 26 or 27 in which the phosphor comprises a photoluminescent material having a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  42. 42. The optical component according to claim 26 or 27, in which the phosphor comprises a photoluminescent material having a formula (YA)3(AlB)5(OC)12:Ce3+ where A is a trivalent metal selected from the group consisting of Gd, Tb, La, Sm or divalent metal ions such as Sr, Ca, Ba, Mg, Zn and Cd; B is selected from the group Si, B, P, and Ga; and C is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  43. 43. The optical component according to claim 26 or 27, in which the phosphor comprises an orange-red silicate-based phosphor having a formula (SrM1)3Si(OD)5:Eu where M1 is selected from the group consisting of Ba, Ca, Mg, and Zn, and D is selected from the group consisting of F, Cl, S, and N.
  44. 44. The lighting arrangement according to claim 26 or 27, in which the phosphor comprises a red silicon nitride based phosphor having a formula (SrM1)Si5N8 where M1 is selected from the group consisting of Sr, Ca, Mg, and Zn.
  45. 45. The lighting arrangement according to claim 26 or 27, in which the phosphor comprises a red sulfate based phosphor having a formula (SrM1)S where M1 is selected from the group consisting of Ca, Ba, and Mg.
  46. 46. The lighting arrangement according to claim 26 or 27, in which the phosphor comprises a green sulfate based phosphor having a formula (SrM1)(GaM2)2S4:Eu where M1 is selected from the group consisting of Ca, Ba, and Mg, and M2 is selected from the group consisting of Al and In.
  47. 47. A method of fabricating a lighting arrangement comprising: providing a radiation source configured to emit radiation having a first wavelength range and an optical component through which said radiation passes; and providing on a surface of the optical component a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range.
  48. 48. The method according to claim 47, and comprising providing the phosphor as a substantially uniform thickness layer on said surface of the optical component.
  49. 49. The method according to claim 47 or claim 48, in which the optical component has a substantially planar surface and comprising providing the phosphor on said substantially planar surface.
  50. 50. The method according to claim 47 or claim 48, in which the optical component has a convex surface and comprising providing the phosphor on said convex surface.
  51. 51. The method according to claim 47 or claim 48, in which the optical component has a concave surface and comprising providing the phosphor on said concave surface.
  52. 52. The method according to claim 47 or claim 48, in which the optical component has a substantially hemispherical surface and comprising providing the phosphor on said hemispherical surface.
  53. 53. The method according to claim 52, in which the optical component comprises a substantially hemispherical shell and comprising providing the phosphor on the inner hemispherical surface.
  54. 54. The method according to claim 52, in which the optical component comprises a substantially hemispherical shell and comprising providing the phosphor on at least a part of the outer hemispherical surface.
  55. 55. The method according to claim 47 or claim 48, in which the optical component comprises a substantially spherical shell and comprising providing the phosphor on at least a part of the inner spherical surface.
  56. 56. The method according to claim 47 or claim 48, in which the optical component comprises a substantially spherical shell and comprising providing the phosphor on at least a part of the outer spherical surface.
  57. 57. The method according to claim 47 or claim 48, in which the optical component comprises a hollow cylinder and comprising providing the phosphor on at least a part of the inner surface.
  58. 58. The method according to claim 47 or claim 48, in which the optical component comprises a hollow cylinder and comprising providing the phosphor on at least a part of the outer surface.
  59. 59. The method according to claim 47 or 48 in which the optical component is fabricated from one of a plastics material, a glass.
  60. 60. A method of fabricating an optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component being configured such that at least said first wavelength range radiation passes through said optical component, the method comprising providing said phosphor on a surface of the optical component.
  61. 61. The method according to claim 60, and comprising providing the phosphor as a substantially uniform thickness layer.
  62. 62. The method according to claim 60 or claim 61, in which the optical component has a substantially planar surface and comprising providing the phosphor on said substantially planar surface.
  63. 63. The method according to claim 60 or claim 61, in which the optical component has a convex surface and comprising providing the phosphor on said convex surface.
  64. 64. The method according to claim 60 or claim 61, in which the optical component has a concave surface and comprising providing the phosphor on said concave surface.
  65. 65. The method according to claim 60 or claim 61, in which the optical component has a substantially hemispherical surface and comprising providing the phosphor on said hemispherical surface.
  66. 66. The method according to claim 65, in which the optical component comprises a substantially hemispherical shell and comprising providing the phosphor on the inner hemispherical surface.
  67. 67. The method according to claim 65, in which the optical component comprises a substantially hemispherical shell and comprising providing the phosphor on at least a part of the outer hemispherical surface.
  68. 68. The method according to claim 60 or 61, in which the optical component comprises a substantially spherical shell and comprising providing the phosphor on at least a part of the inner spherical surface.
  69. 69. The method according to claim 60 or 61, in which the optical component comprises a substantially spherical shell and comprising providing the phosphor on at least a part of the outer spherical surface.
  70. 70. The method according to claim 60 or 61, in which the optical component comprises a hollow cylinder and comprising providing the phosphor on at least a part of the inner surface.
  71. 71. The method according to claim 60 or 61, in which the optical component comprises a hollow cylinder and comprising providing the phosphor on at least a part of the outer surface.
  72. 72. The method according to claim 60 or 61, in which the phosphor comprises a powder and comprising incorporating the phosphor within one of a epoxy resin, silicone material, polymer material to form a mixture and applying the phosphor mixture to the optical component to form a layer of phosphor on the optical component surface.
  73. 73. The method according to claim 60, and further comprising incorporating a light diffusing material with the phosphor powder.
  74. 74. The method according to any one of claims 60, 61 or 73, in which the phosphor comprises a photoluminescent materials have a formula A2SiO4:Eu2+D where A is a divalent metal selected from the group consisting of Sr, Ca, Ba, Mg, Zn and Cd and D is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  75. 75. The lighting arrangement according to any one of claims 60, 61 or 73, in which the phosphor comprises a photoluminescent material having a formula (YA)3(AlB)5(OC)12:Ce3+ where A is a trivalent metal selected from the group consisting of Gd, Tb, La, Sm or divalent metal ions such as Sr, Ca, Ba, Mg, Zn and Cd; B is selected from the group consisting of Si, B, P, and Ga; and C is a dopant selected from the group consisting of F, Cl, Br, I, P, S and N.
  76. 76. The lighting arrangement according to any one of claims 60, 61 or 73, in which the phosphor comprises an orange-red silicate-based phosphor having a formula (SrM1)3Si(OD)5:Eu where M1 is selected from the group consisting of Ba, Ca, Mg, and Zn, and D is selected from the group consisting of F, Cl, S, and N.
  77. 77. The lighting arrangement according to any one of claims 60, 61 or 73, in which the phosphor comprises a red silicon nitride based phosphor having a formula (SrM1)Si5N8 where M1 is selected from the group consisting of Sr, Ca, Mg, and Zn.
  78. 78. The lighting arrangement according to any one of claims 60, 61 or 73, in which the phosphor comprises a red sulfate based phosphor having a formula (SrM1)S where M1 is selected from the group consisting of Ca, Ba, and Mg.
  79. 79. The lighting arrangement according to any one of claim 60, 61 or 73, in which the phosphor comprises a green sulfate based phosphor having a formula (SrM1)(GaM2)2S4:Eu where M1 is selected from the group consisting of Ca, Ba, and Mg, and M2 is selected from the group consisting of Al, and In.
  80. 80. The method according to any one of claims 60, 61 or 73, and comprising fabricating the optical component from one of a plastics material, glass.
  81. 81. The method according to claim 60 and further comprising providing a plurality of optical components in the form of an array said array of optical components having a common planar surface and depositing said phosphor on the planar surface.
  82. 82. The method according to claim 81, and comprising providing the phosphor as a substantially uniform thickness layer on said planar surface of the array of optical components.
  83. 83. A phosphor material for coating an optical component of an LED lighting arrangement comprising a phosphor powder incorporated within one of an epoxy resin, a silicone material and a polymer material.
  84. 84. The phosphor material according to claim 83 and further comprising a light diffusing material.
  85. 85. An optical component for a lighting arrangement of a type comprising a radiation source configured to emit radiation having a first wavelength range; a phosphor configured to absorb at least a portion of said first wavelength range radiation and emit radiation having a second wavelength range; and said optical component being configured such that at least said first wavelength range radiation passes through said optical component, and characterized in that said phosphor is incorporated in said optical component.
US11640533 2006-08-03 2006-12-15 LED lighting arrangement including light emitting phosphor Abandoned US20080029720A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US83560106 true 2006-08-03 2006-08-03
US11640533 US20080029720A1 (en) 2006-08-03 2006-12-15 LED lighting arrangement including light emitting phosphor

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US11640533 US20080029720A1 (en) 2006-08-03 2006-12-15 LED lighting arrangement including light emitting phosphor
JP2009522877A JP2009545888A (en) 2006-08-03 2007-08-02 led illumination arrangement includes light emitting phosphor
KR20097004371A KR20090040360A (en) 2006-08-03 2007-08-02 Led lighting arrangement including light emitting phosphor
PCT/US2007/017299 WO2008019041A3 (en) 2006-08-03 2007-08-02 Led lighting arrangement including light emitting phosphor
EP20070811039 EP2055147A4 (en) 2006-08-03 2007-08-02 Led lighting arrangement including light emitting phosphor
CN 201010525492 CN102062359A (en) 2006-08-03 2007-08-02 Led lighting arrangement including light emitting phosphor
US12624900 US20100067217A1 (en) 2006-08-03 2009-11-24 Led lighting arrangement including light emitting phosphor
US12624839 US8067884B2 (en) 2006-08-03 2009-11-24 LED lighting arrangement including a substantially spherical optical component having a surface partially coated with a light emitting phosphor
US13087615 US20110187262A1 (en) 2006-08-03 2011-04-15 Led lighting arrangement including light emitting phosphor
US13436507 US20120182715A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor and method of manufacture
US13436329 US20120187823A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436471 US20120187822A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13441714 US9045688B2 (en) 2006-08-03 2012-04-06 LED lighting arrangement including light emitting phosphor
US13931669 US20130293098A1 (en) 2006-08-03 2013-06-28 Solid-state linear lighting arrangements including light emitting phosphor
JP2013154964A JP2013254972A (en) 2006-08-03 2013-07-25 Led lighting arrangement including light emitting phosphor
US14157501 US20140306599A1 (en) 2006-08-03 2014-01-16 Solid-state linear lighting arrangements including light emitting phosphor
US14727814 US9595644B2 (en) 2006-08-03 2015-06-01 LED lighting arrangement including light emitting phosphor
US15653071 US20180156421A1 (en) 2006-08-03 2017-07-18 Solid-state linear lighting arrangements including light emitting phosphor

Related Child Applications (8)

Application Number Title Priority Date Filing Date
US12624839 Continuation US8067884B2 (en) 2006-08-03 2009-11-24 LED lighting arrangement including a substantially spherical optical component having a surface partially coated with a light emitting phosphor
US12624900 Continuation US20100067217A1 (en) 2006-08-03 2009-11-24 Led lighting arrangement including light emitting phosphor
US13087615 Division US20110187262A1 (en) 2006-08-03 2011-04-15 Led lighting arrangement including light emitting phosphor
US13436507 Continuation US20120182715A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor and method of manufacture
US13436329 Continuation US20120187823A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436471 Continuation US20120187822A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13441714 Continuation US9045688B2 (en) 2006-08-03 2012-04-06 LED lighting arrangement including light emitting phosphor
US13931669 Continuation-In-Part US20130293098A1 (en) 2006-08-03 2013-06-28 Solid-state linear lighting arrangements including light emitting phosphor

Publications (1)

Publication Number Publication Date
US20080029720A1 true true US20080029720A1 (en) 2008-02-07

Family

ID=39028247

Family Applications (9)

Application Number Title Priority Date Filing Date
US11640533 Abandoned US20080029720A1 (en) 2006-08-03 2006-12-15 LED lighting arrangement including light emitting phosphor
US12624839 Active 2027-05-12 US8067884B2 (en) 2006-08-03 2009-11-24 LED lighting arrangement including a substantially spherical optical component having a surface partially coated with a light emitting phosphor
US12624900 Abandoned US20100067217A1 (en) 2006-08-03 2009-11-24 Led lighting arrangement including light emitting phosphor
US13087615 Abandoned US20110187262A1 (en) 2006-08-03 2011-04-15 Led lighting arrangement including light emitting phosphor
US13436471 Abandoned US20120187822A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436329 Abandoned US20120187823A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436507 Abandoned US20120182715A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor and method of manufacture
US13441714 Active US9045688B2 (en) 2006-08-03 2012-04-06 LED lighting arrangement including light emitting phosphor
US14727814 Active 2027-03-11 US9595644B2 (en) 2006-08-03 2015-06-01 LED lighting arrangement including light emitting phosphor

Family Applications After (8)

Application Number Title Priority Date Filing Date
US12624839 Active 2027-05-12 US8067884B2 (en) 2006-08-03 2009-11-24 LED lighting arrangement including a substantially spherical optical component having a surface partially coated with a light emitting phosphor
US12624900 Abandoned US20100067217A1 (en) 2006-08-03 2009-11-24 Led lighting arrangement including light emitting phosphor
US13087615 Abandoned US20110187262A1 (en) 2006-08-03 2011-04-15 Led lighting arrangement including light emitting phosphor
US13436471 Abandoned US20120187822A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436329 Abandoned US20120187823A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor
US13436507 Abandoned US20120182715A1 (en) 2006-08-03 2012-03-30 Led lighting arrangement including light emitting phosphor and method of manufacture
US13441714 Active US9045688B2 (en) 2006-08-03 2012-04-06 LED lighting arrangement including light emitting phosphor
US14727814 Active 2027-03-11 US9595644B2 (en) 2006-08-03 2015-06-01 LED lighting arrangement including light emitting phosphor

Country Status (6)

Country Link
US (9) US20080029720A1 (en)
EP (1) EP2055147A4 (en)
JP (2) JP2009545888A (en)
KR (1) KR20090040360A (en)
CN (1) CN102062359A (en)
WO (1) WO2008019041A3 (en)

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080027200A1 (en) * 2006-07-26 2008-01-31 Shin -Etsu Chemical Co., Ltd. Phosphor-containing curable silicone composition for led and led light-emitting device using the composition
US20080214896A1 (en) * 2007-01-10 2008-09-04 Krupa Robert J Endoscope with detachable elongation portion
US20090066218A1 (en) * 2007-09-06 2009-03-12 Ben Fan Method for generating low color temperature light and light emitting device adopting the same
US20090141476A1 (en) * 2005-06-07 2009-06-04 Noam Meir Illumination Apparatus and Methods of Forming the Same
US20090161369A1 (en) * 2007-12-19 2009-06-25 Keren Regev Waveguide sheet and methods for manufacturing the same
US20090161361A1 (en) * 2007-12-19 2009-06-25 Noam Meir Discrete lighting elements and planar assembly thereof
US20090185392A1 (en) * 2003-03-26 2009-07-23 Optim, Inc. Detachable illumination system
US20090190371A1 (en) * 2008-01-24 2009-07-30 Optim, Inc. Monolithic illumination device
US20090225565A1 (en) * 2008-03-05 2009-09-10 Micha Zimmermann Sub-assembly and methods for forming the same
US20100002414A1 (en) * 2005-06-07 2010-01-07 Noam Meir Illumination Apparatus and Methods of Forming the Same
US20100008628A1 (en) * 2008-07-10 2010-01-14 Yosi Shani Slim waveguide coupling apparatus and method
US20100033964A1 (en) * 2008-08-08 2010-02-11 Photonics & Co., Limited Light emitting diode (led) lighting device
US20100098377A1 (en) * 2008-10-16 2010-04-22 Noam Meir Light confinement using diffusers
US20100208469A1 (en) * 2009-02-10 2010-08-19 Yosi Shani Illumination surfaces with reduced linear artifacts
US20100220484A1 (en) * 2008-07-10 2010-09-02 Oree Inc. Slim waveguide coupling apparatus and method
US20100296309A1 (en) * 2009-05-20 2010-11-25 Foxsemicon Integrated Technology, Inc. Illumination device
US20100314996A1 (en) * 2009-06-11 2010-12-16 Van De Ven Antony P Hot light emitting diode (led) lighting systems and methods
US20100315817A1 (en) * 2009-05-13 2010-12-16 Oree Inc. Low-profile illumination device
US20110084297A1 (en) * 2008-03-28 2011-04-14 Toshifumi Ogata Molded resin product, semiconductor light-emitting source, lighting device, and method for manufacturing molded resin product
US20110182055A1 (en) * 2008-03-19 2011-07-28 I2Ic Corporation Photoluminescent Light Source
US20110187262A1 (en) * 2006-08-03 2011-08-04 Intematix Corporation Led lighting arrangement including light emitting phosphor
CN102185082A (en) * 2011-04-08 2011-09-14 深圳市华星光电技术有限公司 Light-emitting diode structure and light-emitting diode structure manufacturing method
WO2012015726A1 (en) * 2010-07-28 2012-02-02 GE Lighting Solutions, LLC Phosphor suspended in silicone, molded/formed and used in a remote phosphor configuration
US8128272B2 (en) 2005-06-07 2012-03-06 Oree, Inc. Illumination apparatus
EP2446190A2 (en) * 2009-06-23 2012-05-02 Altair Engineering, Inc. Led lamp with a wavelength converting layer
EP2491296A2 (en) * 2009-10-22 2012-08-29 Light Prescriptions Innovators, LLC. Solid-state light bulb
US20130050979A1 (en) * 2011-08-26 2013-02-28 Antony P. Van de Ven Reduced phosphor lighting devices
US20130092965A1 (en) * 2010-03-30 2013-04-18 Naoto Kijima Light emitting device
US20130094180A1 (en) * 2011-10-18 2013-04-18 Taiwan Semiconductor Manufacturing Company, Ltd. Coated diffuser cap for led illumination device
US8491140B2 (en) 2010-11-05 2013-07-23 Cree, Inc. Lighting device with multiple emitters and remote lumiphor
US20130200415A1 (en) * 2012-02-03 2013-08-08 Sabic Innovative Plastics Ip B.V. Light emitting diode device and method for production thereof containing conversion material chemistry
US8513872B2 (en) 2010-08-05 2013-08-20 Sharp Kabushiki Kaisha Light emitting apparatus and method for manufacturing thereof
US8534901B2 (en) 2010-09-13 2013-09-17 Teledyne Reynolds, Inc. Collimating waveguide apparatus and method
US8591072B2 (en) 2011-11-16 2013-11-26 Oree, Inc. Illumination apparatus confining light by total internal reflection and methods of forming the same
WO2013182950A1 (en) * 2012-06-05 2013-12-12 Koninklijke Philips N.V. Lighting device having a remote wave length converting layer
US8608328B2 (en) 2011-05-06 2013-12-17 Teledyne Technologies Incorporated Light source with secondary emitter conversion element
US8624527B1 (en) 2009-03-27 2014-01-07 Oree, Inc. Independently controllable illumination device
US20140009959A1 (en) * 2011-03-22 2014-01-09 Lg Innotek Co., Ltd. Display device and light conversion member
US20140117393A1 (en) * 2012-10-25 2014-05-01 Sabic Innovative Plastics Ip B.V. Light emitting diode devices, method of manufacture, uses thereof
US8727597B2 (en) 2009-06-24 2014-05-20 Oree, Inc. Illumination apparatus with high conversion efficiency and methods of forming the same
US8801253B2 (en) 2003-03-26 2014-08-12 Optim Llc Illumination device
US8807785B2 (en) 2008-05-23 2014-08-19 Ilumisys, Inc. Electric shock resistant L.E.D. based light
US8840282B2 (en) 2010-03-26 2014-09-23 Ilumisys, Inc. LED bulb with internal heat dissipating structures
US8894430B2 (en) 2010-10-29 2014-11-25 Ilumisys, Inc. Mechanisms for reducing risk of shock during installation of light tube
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US8928025B2 (en) 2007-12-20 2015-01-06 Ilumisys, Inc. LED lighting apparatus with swivel connection
US8946996B2 (en) 2008-10-24 2015-02-03 Ilumisys, Inc. Light and light sensor
US8962117B2 (en) 2011-10-27 2015-02-24 Sabic Global Technologies B.V. Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate
US9006378B2 (en) 2013-05-29 2015-04-14 Sabic Global Technologies B.V. Color stable thermoplastic composition
US9013119B2 (en) 2010-03-26 2015-04-21 Ilumisys, Inc. LED light with thermoelectric generator
US20150198319A1 (en) * 2013-11-21 2015-07-16 Ford Glaobal Technologies, LLC Photoluminescent dynamic lighting
US9101026B2 (en) 2008-10-24 2015-08-04 Ilumisys, Inc. Integration of LED lighting with building controls
US20150252965A1 (en) * 2014-03-07 2015-09-10 Intematix Corporation Solid-state linear lighting arrangements including light emitting phosphor
US9140429B2 (en) 2010-10-14 2015-09-22 Cree, Inc. Optical element edge treatment for lighting device
US20160049561A1 (en) * 2013-03-13 2016-02-18 Koninklijke Philips N.V. Encapsulated led lens with bottom reflectors
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
US9287471B2 (en) 2012-02-29 2016-03-15 Sabic Global Technologies B.V. Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
US9290618B2 (en) 2011-08-05 2016-03-22 Sabic Global Technologies B.V. Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions
US9349924B2 (en) 2009-03-19 2016-05-24 Koninklijke Phililps N.V. Illumination device with remote luminescent material
US9346949B2 (en) 2013-02-12 2016-05-24 Sabic Global Technologies B.V. High reflectance polycarbonate
US9353939B2 (en) 2008-10-24 2016-05-31 iLumisys, Inc Lighting including integral communication apparatus
EP2985516A4 (en) * 2013-03-04 2016-11-09 Shinetsu Chemical Co Turn signal for vehicle
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light
US9553244B2 (en) 2013-05-16 2017-01-24 Sabic Global Technologies B.V. Branched polycarbonate compositions having conversion material chemistry and articles thereof
US9574717B2 (en) 2014-01-22 2017-02-21 Ilumisys, Inc. LED-based light with addressed LEDs
US9587790B2 (en) 2013-03-15 2017-03-07 Cree, Inc. Remote lumiphor solid state lighting devices with enhanced light extraction
US9624427B2 (en) 2006-11-24 2017-04-18 Ge Phosphors Technology, Llc Phosphor, method of producing the same, and light emitting apparatus
US9772086B2 (en) 2013-05-29 2017-09-26 Sabic Innovative Plastics Ip B.V. Illuminating devices with color stable thermoplastic light transmitting articles
US9771452B2 (en) 2012-02-29 2017-09-26 Sabic Global Technologies B.V. Plastic composition comprising a polycarbonate made from low sulfur bisphenol A, and articles made therefrom
US9807842B2 (en) 2012-07-09 2017-10-31 Ilumisys, Inc. System and method for controlling operation of an LED-based light
US9857519B2 (en) 2012-07-03 2018-01-02 Oree Advanced Illumination Solutions Ltd. Planar remote phosphor illumination apparatus

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8791631B2 (en) 2007-07-19 2014-07-29 Quarkstar Llc Light emitting device
US7897985B2 (en) * 2008-03-14 2011-03-01 Osram Sylvania LED light engine kernel and method of making the kernel
US20100123386A1 (en) * 2008-11-13 2010-05-20 Maven Optronics Corp. Phosphor-Coated Light Extraction Structures for Phosphor-Converted Light Emitting Devices
US8390193B2 (en) * 2008-12-31 2013-03-05 Intematix Corporation Light emitting device with phosphor wavelength conversion
US7956546B2 (en) * 2009-05-15 2011-06-07 Bridgelux, Inc. Modular LED light bulb
KR100917669B1 (en) * 2009-06-19 2009-09-18 (주)익선건설 Phosphorescent induction lamp
CN101852382A (en) * 2010-06-10 2010-10-06 洛克斯(吴江)电子有限公司 Lamp shade for LED lamp
JP5597495B2 (en) * 2010-09-14 2014-10-01 株式会社東芝 Phosphor layer with a glove for Led light bulb, its production method and led light bulb
US9169995B2 (en) * 2010-09-28 2015-10-27 Universita' Degli Studi Di Milano Bicocca Lighting system
WO2012047937A1 (en) 2010-10-05 2012-04-12 Intematix Corporation Solid-state light emitting devices and signage with photoluminescence wavelength conversion
US8957585B2 (en) 2010-10-05 2015-02-17 Intermatix Corporation Solid-state light emitting devices with photoluminescence wavelength conversion
US8610341B2 (en) 2010-10-05 2013-12-17 Intematix Corporation Wavelength conversion component
US8604678B2 (en) 2010-10-05 2013-12-10 Intematix Corporation Wavelength conversion component with a diffusing layer
US9546765B2 (en) 2010-10-05 2017-01-17 Intematix Corporation Diffuser component having scattering particles
US8614539B2 (en) 2010-10-05 2013-12-24 Intematix Corporation Wavelength conversion component with scattering particles
JP5231609B2 (en) * 2010-12-08 2013-07-10 シャープ株式会社 Emitting device and manufacturing method thereof
RU2452059C1 (en) * 2011-01-13 2012-05-27 Закрытое Акционерное Общество "Научно-Производственная Коммерческая Фирма "Элтан Лтд" Light-emitting diode source of white light with remote photoluminescent reflecting converter
KR101177469B1 (en) * 2011-01-17 2012-08-24 엘지전자 주식회사 Lighting apparatus
KR101132360B1 (en) * 2011-05-25 2012-04-03 한국해양대학교 산학협력단 Red light lamp for naval vessels
US9115868B2 (en) 2011-10-13 2015-08-25 Intematix Corporation Wavelength conversion component with improved protective characteristics for remote wavelength conversion
US20130100641A1 (en) * 2011-10-25 2013-04-25 Marcus Zhang LED Lamp
RU2500715C2 (en) 2011-11-18 2013-12-10 Общество с ограниченной ответственностью "Люмен" (ООО "Люмен") Luminescent composite material and light-emitting device based thereon
JP2015506091A (en) 2011-11-23 2015-02-26 クォークスター・エルエルシー Emitting device propagating light asymmetrically
US8896010B2 (en) 2012-01-24 2014-11-25 Cooledge Lighting Inc. Wafer-level flip chip device packages and related methods
US8907362B2 (en) 2012-01-24 2014-12-09 Cooledge Lighting Inc. Light-emitting dies incorporating wavelength-conversion materials and related methods
WO2013112435A1 (en) 2012-01-24 2013-08-01 Cooledge Lighting Inc. Light - emitting devices having discrete phosphor chips and fabrication methods
WO2013134326A1 (en) * 2012-03-05 2013-09-12 Nanoprecision Products, Inc. Coupling device having a structured reflective surface for coupling input/output of an optical fiber
CN103375708B (en) * 2012-04-26 2015-10-28 展晶科技(深圳)有限公司 LED light source device
DE102012209172A1 (en) * 2012-05-31 2013-12-05 Osram Gmbh Lens having inside reflective reflection layer
US9291763B2 (en) 2012-09-13 2016-03-22 Quarkstar Llc Light-emitting device with remote scattering element and total internal reflection extractor element
EP2895793A4 (en) 2012-09-13 2016-06-29 Quarkstar Llc Light-emitting devices with reflective elements
US9983414B2 (en) * 2012-10-23 2018-05-29 Nanoprecision Products, Inc. Optoelectronic module having a stamped metal optic
RU2628014C2 (en) * 2012-12-06 2017-08-17 Евгений Михайлович Силкин Lighting device
CN103090319A (en) * 2012-12-20 2013-05-08 康佳集团股份有限公司 Lamp bar of liquid crystal display (LCD) television and directly-down type backlight module
US9217543B2 (en) * 2013-01-28 2015-12-22 Intematix Corporation Solid-state lamps with omnidirectional emission patterns
US9869432B2 (en) 2013-01-30 2018-01-16 Cree, Inc. Luminaires using waveguide bodies and optical elements
US20140355302A1 (en) * 2013-03-15 2014-12-04 Cree, Inc. Outdoor and/or Enclosed Structure LED Luminaire for General Illumination Applications, Such as Parking Lots and Structures
US9366799B2 (en) 2013-03-15 2016-06-14 Cree, Inc. Optical waveguide bodies and luminaires utilizing same
USD738034S1 (en) * 2013-03-15 2015-09-01 Cree, Inc. Lighting apparatus
US9291320B2 (en) 2013-01-30 2016-03-22 Cree, Inc. Consolidated troffer
US9581751B2 (en) 2013-01-30 2017-02-28 Cree, Inc. Optical waveguide and lamp including same
USD743090S1 (en) * 2013-03-15 2015-11-10 Cree, Inc. Lighting apparatus
US9920901B2 (en) 2013-03-15 2018-03-20 Cree, Inc. LED lensing arrangement
US9366396B2 (en) 2013-01-30 2016-06-14 Cree, Inc. Optical waveguide and lamp including same
US9690029B2 (en) 2013-01-30 2017-06-27 Cree, Inc. Optical waveguides and luminaires incorporating same
US9798072B2 (en) 2013-03-15 2017-10-24 Cree, Inc. Optical element and method of forming an optical element
US9442243B2 (en) 2013-01-30 2016-09-13 Cree, Inc. Waveguide bodies including redirection features and methods of producing same
JP6045470B2 (en) * 2013-03-04 2016-12-14 信越化学工業株式会社 Red lamps and the vehicle lighting device
WO2014138591A1 (en) 2013-03-07 2014-09-12 Quarkstar Llc Illumination device with multi-color light-emitting elements
US9752757B2 (en) 2013-03-07 2017-09-05 Quarkstar Llc Light-emitting device with light guide for two way illumination
CN105121951A (en) 2013-03-15 2015-12-02 英特曼帝克司公司 Photoluminescence wavelength conversion components
US9625638B2 (en) 2013-03-15 2017-04-18 Cree, Inc. Optical waveguide body
US20140313741A1 (en) * 2013-04-23 2014-10-23 Tai-Yin Huang Lamp having an annular light-guiding body
US9343443B2 (en) 2014-02-05 2016-05-17 Cooledge Lighting, Inc. Light-emitting dies incorporating wavelength-conversion materials and related methods
USD787112S1 (en) * 2015-07-30 2017-05-16 Moda LLC Cove lighting fixture
WO2017189136A1 (en) * 2016-04-29 2017-11-02 Hoboy Loren P Scanning illuminator and optical incapacitation method and apparatus

Citations (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593055A (en) * 1969-04-16 1971-07-13 Bell Telephone Labor Inc Electro-luminescent device
US3670193A (en) * 1970-05-14 1972-06-13 Duro Test Corp Electric lamps producing energy in the visible and ultra-violet ranges
US3676668A (en) * 1969-12-29 1972-07-11 Gen Electric Solid state lamp assembly
US3691482A (en) * 1970-01-19 1972-09-12 Bell Telephone Labor Inc Display system
US3709685A (en) * 1970-02-19 1973-01-09 Ilford Ltd Photoconductive zinc oxide sensitized by substituted thiazolidene dyes
US3743833A (en) * 1971-07-16 1973-07-03 Eastman Kodak Co Radiographic elements and binders
US3793046A (en) * 1970-12-04 1974-02-19 Philips Corp Method of manufacturing a pigment
US3819973A (en) * 1972-11-02 1974-06-25 A Hosford Electroluminescent filament
US3819974A (en) * 1973-03-12 1974-06-25 D Stevenson Gallium nitride metal-semiconductor junction light emitting diode
US3875456A (en) * 1972-04-04 1975-04-01 Hitachi Ltd Multi-color semiconductor lamp
US3932881A (en) * 1972-09-05 1976-01-13 Nippon Electric Co., Inc. Electroluminescent device including dichroic and infrared reflecting components
US3937998A (en) * 1973-10-05 1976-02-10 U.S. Philips Corporation Luminescent coating for low-pressure mercury vapour discharge lamp
US3972717A (en) * 1973-03-21 1976-08-03 Hoechst Aktiengesellschaft Electrophotographic recording material
US4047075A (en) * 1975-03-01 1977-09-06 Licentia-Patent-Verwaltungs-G.M.B.H. Encapsulated light-emitting diode structure and array thereof
US4104076A (en) * 1970-03-17 1978-08-01 Saint-Gobain Industries Manufacture of novel grey and bronze glasses
US4143394A (en) * 1976-07-30 1979-03-06 Licentia Patent-Verwaltungs-G.M.B.H. Semiconductor luminescence device with housing
US4191943A (en) * 1976-10-18 1980-03-04 Fairchild Camera And Instrument Corporation Filler-in-plastic light-scattering cover
US4211955A (en) * 1978-03-02 1980-07-08 Ray Stephen W Solid state lamp
US4315192A (en) * 1979-12-31 1982-02-09 Westinghouse Electric Corp. Fluorescent lamp using high performance phosphor blend which is protected from color shifts by a very thin overcoat of stable phosphor of similar chromaticity
US4443532A (en) * 1981-07-29 1984-04-17 Bell Telephone Laboratories, Incorporated Induced crystallographic modification of aromatic compounds
US4573766A (en) * 1983-12-19 1986-03-04 Cordis Corporation LED Staggered back lighting panel for LCD module
US4638214A (en) * 1985-03-25 1987-01-20 General Electric Company Fluorescent lamp containing aluminate phosphor
US4667036A (en) * 1983-08-27 1987-05-19 Basf Aktiengesellschaft Concentration of light over a particular area, and novel perylene-3,4,9,10-tetracarboxylic acid diimides
US4678285A (en) * 1984-01-13 1987-07-07 Ricoh Company, Ltd. Liquid crystal color display device
US4727003A (en) * 1985-09-30 1988-02-23 Ricoh Company, Ltd. Electroluminescence device
US4772885A (en) * 1984-11-22 1988-09-20 Ricoh Company, Ltd. Liquid crystal color display device
US4845223A (en) * 1985-12-19 1989-07-04 Basf Aktiengesellschaft Fluorescent aryloxy-substituted perylene-3,4,9,10-tetracarboxylic acid diimides
US4859539A (en) * 1987-03-23 1989-08-22 Eastman Kodak Company Optically brightened polyolefin coated paper support
US4915478A (en) * 1988-10-05 1990-04-10 The United States Of America As Represented By The Secretary Of The Navy Low power liquid crystal display backlight
US4918497A (en) * 1988-12-14 1990-04-17 Cree Research, Inc. Blue light emitting diode formed in silicon carbide
US4946621A (en) * 1986-04-29 1990-08-07 Centre National De La Recherche Scientifique (Cnrs) Luminescent mixed borates based on rare earths
US4992704A (en) * 1989-04-17 1991-02-12 Basic Electronics, Inc. Variable color light emitting diode
US5110931A (en) * 1987-11-27 1992-05-05 Hoechst Aktiengesellschaft Process for the preparation of n,n'-dimethylperylene-3,4,9,10-tetracarboxylic diimide in high-hiding pigment form
US5126214A (en) * 1989-03-15 1992-06-30 Idemitsu Kosan Co., Ltd. Electroluminescent element
US5131916A (en) * 1990-03-01 1992-07-21 Bayer Aktiengesellschaft Colored fluorescent polymer emulsions for marker pens: graft copolymers and fluorescent dyes in aqueous phase
US5141916A (en) * 1988-09-22 1992-08-25 Nitto Denko Corporation Thermal transfer image reception paper
US5143438A (en) * 1990-10-15 1992-09-01 Thorn Emi Plc Light sources
US5143433A (en) * 1991-11-01 1992-09-01 Litton Systems Canada Limited Night vision backlighting system for liquid crystal displays
US5208462A (en) * 1991-12-19 1993-05-04 Allied-Signal Inc. Wide bandwidth solid state optical source
US5210051A (en) * 1990-03-27 1993-05-11 Cree Research, Inc. High efficiency light emitting diodes from bipolar gallium nitride
US5211467A (en) * 1992-01-07 1993-05-18 Rockwell International Corporation Fluorescent lighting system
US5237182A (en) * 1990-11-29 1993-08-17 Sharp Kabushiki Kaisha Electroluminescent device of compound semiconductor with buffer layer
US5283425A (en) * 1992-02-06 1994-02-01 Rohm Co., Ltd. Light emitting element array substrate with reflecting means
US5405709A (en) * 1993-09-13 1995-04-11 Eastman Kodak Company White light emitting internal junction organic electroluminescent device
US5439971A (en) * 1991-11-12 1995-08-08 Eastman Chemical Company Fluorescent pigment concentrates
US5518808A (en) * 1992-12-18 1996-05-21 E. I. Du Pont De Nemours And Company Luminescent materials prepared by coating luminescent compositions onto substrate particles
US5535230A (en) * 1994-04-06 1996-07-09 Shogo Tzuzuki Illuminating light source device using semiconductor laser element
US5557168A (en) * 1993-04-02 1996-09-17 Okaya Electric Industries Co., Ltd. Gas-discharging type display device and a method of manufacturing
US5619356A (en) * 1993-09-16 1997-04-08 Sharp Kabushiki Kaisha Reflective liquid crystal display device having a compensator with a retardation value between 0.15 μm and 0.38 μm and a single polarizer
US5660461A (en) * 1994-12-08 1997-08-26 Quantum Devices, Inc. Arrays of optoelectronic devices and method of making same
US5763901A (en) * 1992-12-17 1998-06-09 Kabushiki Kaisha Toshiba Semiconductor light-emitting device and method for manufacturing the device
US5771039A (en) * 1994-06-06 1998-06-23 Ditzik; Richard J. Direct view display device integration techniques
US5770887A (en) * 1993-10-08 1998-06-23 Mitsubishi Cable Industries, Ltd. GaN single crystal
US5777350A (en) * 1994-12-02 1998-07-07 Nichia Chemical Industries, Ltd. Nitride semiconductor light-emitting device
US5869199A (en) * 1993-03-26 1999-02-09 Sumitomo Electric Industries, Ltd. Organic electroluminescent elements comprising triazoles
US5947587A (en) * 1996-10-16 1999-09-07 U.S. Philips Corporation Signal lamp with LEDs
US5959316A (en) * 1998-09-01 1999-09-28 Hewlett-Packard Company Multiple encapsulation of phosphor-LED devices
US20010000622A1 (en) * 1996-06-26 2001-05-03 Osram Opto Semiconductors Gmbh & Co., Ohg Light-radiating semiconductor component with a luminescence conversion element
US6255670B1 (en) * 1998-02-06 2001-07-03 General Electric Company Phosphors for light generation from light emitting semiconductors
US6340824B1 (en) * 1997-09-01 2002-01-22 Kabushiki Kaisha Toshiba Semiconductor light emitting device including a fluorescent material
US20020047516A1 (en) * 2000-10-24 2002-04-25 Tadanobu Iwasa Fluorescent tube
US6504301B1 (en) * 1999-09-03 2003-01-07 Lumileds Lighting, U.S., Llc Non-incandescent lightbulb package using light emitting diodes
US20030038596A1 (en) * 2001-08-21 2003-02-27 Wen-Chih Ho Light-mixing layer and method
US20030052595A1 (en) * 2001-09-20 2003-03-20 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Illumination unit having at least one LED as light source
US6538375B1 (en) * 2000-08-17 2003-03-25 General Electric Company Oled fiber light source
US6555958B1 (en) * 2000-05-15 2003-04-29 General Electric Company Phosphor for down converting ultraviolet light of LEDs to blue-green light
US20030102810A1 (en) * 2001-11-30 2003-06-05 Mule Lighting, Inc. Retrofit light emitting diode tube
US6576488B2 (en) * 2001-06-11 2003-06-10 Lumileds Lighting U.S., Llc Using electrophoresis to produce a conformally coated phosphor-converted light emitting semiconductor
US6580097B1 (en) * 1998-02-06 2003-06-17 General Electric Company Light emitting device with phosphor composition
US6600175B1 (en) * 1996-03-26 2003-07-29 Advanced Technology Materials, Inc. Solid state white light emitter and display using same
US6614170B2 (en) * 2000-12-29 2003-09-02 Arima Optoelectronics Corporation Light emitting diode with light conversion using scattering optical media
US6680569B2 (en) * 1999-02-18 2004-01-20 Lumileds Lighting U.S. Llc Red-deficiency compensating phosphor light emitting device
US20040016908A1 (en) * 1996-09-20 2004-01-29 Klaus Hohn Wavelength-converting casting composition and white light-emitting semiconductor component
US6717353B1 (en) * 2002-10-14 2004-04-06 Lumileds Lighting U.S., Llc Phosphor converted light emitting device
US20040104391A1 (en) * 2001-09-03 2004-06-03 Toshihide Maeda Semiconductor light emitting device, light emitting apparatus and production method for semiconductor light emitting device
US6860628B2 (en) * 2002-07-17 2005-03-01 Jonas J. Robertson LED replacement for fluorescent lighting
US20050051782A1 (en) * 2003-09-09 2005-03-10 Negley Gerald H. Transmissive optical elements including transparent plastic shell having a phosphor dispersed therein, and methods of fabricating same
US20050057917A1 (en) * 2003-09-17 2005-03-17 Yasushi Yatsuda Light source and vehicle lamp
US6869812B1 (en) * 2003-05-13 2005-03-22 Heng Liu High power AllnGaN based multi-chip light emitting diode
US20050093430A1 (en) * 2003-02-26 2005-05-05 Cree, Inc. Composite white light source and method for fabricating
US20050168127A1 (en) * 2004-01-30 2005-08-04 Shih-Chang Shei [white light led]
US20060028122A1 (en) * 2004-08-04 2006-02-09 Intematix Corporation Novel silicate-based yellow-green phosphors
US7220022B2 (en) * 1999-02-12 2007-05-22 Fiber Optic Designs, Inc. Jacketed LED assemblies and light strings containing same
US20080111472A1 (en) * 2006-11-10 2008-05-15 Intematix Corporation Aluminum-silicate based orange-red phosphors with mixed divalent and trivalent cations
US7390437B2 (en) * 2004-08-04 2008-06-24 Intematix Corporation Aluminate-based blue phosphors
US7479662B2 (en) * 2002-08-30 2009-01-20 Lumination Llc Coated LED with improved efficiency
US7575697B2 (en) * 2004-08-04 2009-08-18 Intematix Corporation Silicate-based green phosphors
US7655156B2 (en) * 2005-08-03 2010-02-02 Intematix Corporation Silicate-based orange phosphors
US7663315B1 (en) * 2007-07-24 2010-02-16 Ilight Technologies, Inc. Spherical bulb for light-emitting diode with spherical inner cavity
US7686478B1 (en) * 2007-01-12 2010-03-30 Ilight Technologies, Inc. Bulb for light-emitting diode with color-converting insert
US7943951B2 (en) * 2005-06-17 2011-05-17 Samsung Led Co., Ltd. Light emitting device package
US20110147778A1 (en) * 2009-12-17 2011-06-23 Nichia Corporation Light emitting device
US7972030B2 (en) * 2007-03-05 2011-07-05 Intematix Corporation Light emitting diode (LED) based lighting systems
US20120086034A1 (en) * 2010-10-05 2012-04-12 Intematix Corporation Solid-state light emitting devices and signage with photoluminescence wavelength conversion

Family Cites Families (175)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290255A (en) 1963-09-30 1966-12-06 Gen Electric White electroluminescent phosphor
JPS5026433B1 (en) 1970-12-21 1975-09-01
US4081764A (en) * 1972-10-12 1978-03-28 Minnesota Mining And Manufacturing Company Zinc oxide light emitting diode
US3849707A (en) 1973-03-07 1974-11-19 Ibm PLANAR GaN ELECTROLUMINESCENT DEVICE
JPS5079379A (en) 1973-11-13 1975-06-27
JPS5079379U (en) 1973-11-24 1975-07-09
US4176294A (en) 1975-10-03 1979-11-27 Westinghouse Electric Corp. Method and device for efficiently generating white light with good rendition of illuminated objects
US4176299A (en) 1975-10-03 1979-11-27 Westinghouse Electric Corp. Method for efficiently generating white light with good color rendition of illuminated objects
GB2017409A (en) 1978-03-22 1979-10-03 Bayraktaroglu B Light-emitting diode
US4305019A (en) 1979-12-31 1981-12-08 Westinghouse Electric Corp. Warm-white fluorescent lamp having good efficacy and color rendering and using special phosphor blend as separate undercoat
JPS6348388B2 (en) 1981-04-22 1988-09-28 Mitsubishi Electric Corp
JPH0324692B2 (en) 1982-10-07 1991-04-03 Hideo Itokawa
JPH0462378B2 (en) 1984-01-11 1992-10-06 Mitsubishi Chem Ind
JPH0533514B2 (en) 1984-02-13 1993-05-19 Sony Corp
JPS60170194U (en) 1984-04-20 1985-11-11
JPH0324692Y2 (en) 1987-08-06 1991-05-29
JPH079998B2 (en) 1988-01-07 1995-02-01 科学技術庁無機材質研究所長 P-n junction type light-emitting device of the cubic boron nitride
JPH01260707A (en) 1988-04-11 1989-10-18 Idec Izumi Corp Device for emitting white light
JPH0291980A (en) 1988-09-29 1990-03-30 Toshiba Lighting & Technol Corp Solid-state light emitting element
JPH0799345B2 (en) 1988-10-31 1995-10-25 沖電気工業株式会社 Temperature profile data generating method and device
DE3926564A1 (en) 1989-08-11 1991-02-14 Hoechst Ag New pigment preparations on the basis of perylene
WO1991008508A1 (en) 1989-11-24 1991-06-13 Innovare Limited A display device
US5077161A (en) 1990-05-31 1991-12-31 Xerox Corporation Imaging members with bichromophoric bisazo perylene photoconductive materials
JPH0794785B2 (en) 1990-12-07 1995-10-11 斉藤 幹夫 Tablets for bag
JPH04289691A (en) 1990-12-07 1992-10-14 Mitsubishi Cable Ind Ltd El illuminant
US5166761A (en) 1991-04-01 1992-11-24 Midwest Research Institute Tunnel junction multiple wavelength light-emitting diodes
JP2791448B2 (en) 1991-04-19 1998-08-27 日亜化学工業 株式会社 Light emitting diode
JP2666228B2 (en) 1991-10-30 1997-10-22 株式会社豊田中央研究所 The gallium nitride-based compound semiconductor light-emitting device
GB9124444D0 (en) 1991-11-18 1992-01-08 Black Box Vision Limited Display device
JPH05152609A (en) 1991-11-25 1993-06-18 Nichia Chem Ind Ltd Light emitting diode
JPH087614B2 (en) 1992-03-27 1996-01-29 株式会社牧野フライス製作所 Tool length correction method and apparatus of a machine tool
GB9207524D0 (en) * 1992-04-07 1992-05-20 Smiths Industries Plc Radiation-emitting devices
US6137217A (en) 1992-08-28 2000-10-24 Gte Products Corporation Fluorescent lamp with improved phosphor blend
US5578839A (en) 1992-11-20 1996-11-26 Nichia Chemical Industries, Ltd. Light-emitting gallium nitride-based compound semiconductor device
JPH06267301A (en) 1993-03-15 1994-09-22 Olympus Optical Co Ltd Organic photoluminescence element
US5677417A (en) 1993-05-04 1997-10-14 Max-Planck-Gesellschaft Zur Foerderung Tetraaroxyperylene-3,4,9,10-tetracarboxylic polyimides
JPH0794785A (en) * 1993-09-22 1995-04-07 Stanley Electric Co Ltd Light-emitting diode
JPH07176794A (en) 1993-12-17 1995-07-14 Nichia Chem Ind Ltd Planar light source
US5679152A (en) 1994-01-27 1997-10-21 Advanced Technology Materials, Inc. Method of making a single crystals Ga*N article
JPH07235207A (en) 1994-02-21 1995-09-05 Copal Co Ltd Back light
US6330017B1 (en) * 1994-10-12 2001-12-11 Ricoh Co., Ltd. Light emitting diode array head including focusing lenses
US5585640A (en) 1995-01-11 1996-12-17 Huston; Alan L. Glass matrix doped with activated luminescent nanocrystalline particles
JPH08250281A (en) 1995-03-08 1996-09-27 Olympus Optical Co Ltd Luminescent element and displaying apparatus
US5583349A (en) 1995-11-02 1996-12-10 Motorola Full color light emitting diode display
RU2114492C1 (en) * 1996-03-19 1998-06-27 Владимир Семенович Абрамов Light-emitting diode
CN100424902C (en) * 1996-07-29 2008-10-08 日亚化学工业株式会社 A planar light source
JPH1173922A (en) 1997-08-29 1999-03-16 Matsushita Electric Works Ltd Light-emitting device
US5962971A (en) 1997-08-29 1999-10-05 Chen; Hsing LED structure with ultraviolet-light emission chip and multilayered resins to generate various colored lights
JP2900928B2 (en) 1997-10-20 1999-06-02 日亜化学工業株式会社 Light emitting diode
US6147367A (en) * 1997-12-10 2000-11-14 Industrial Technology Research Institute Packaging design for light emitting diode
US6252254B1 (en) * 1998-02-06 2001-06-26 General Electric Company Light emitting device with phosphor composition
JP3307316B2 (en) 1998-02-27 2002-07-24 サンケン電気株式会社 Semiconductor light-emitting device
JP2000031548A (en) * 1998-07-09 2000-01-28 Stanley Electric Co Ltd Surface mount light-emitting diode and its manufacture
JP4010665B2 (en) 1998-09-08 2007-11-21 三洋電機株式会社 Mounting method of the solar cell module
JP4010666B2 (en) 1998-09-11 2007-11-21 三洋電機株式会社 Solar power generation apparatus
EP1104799A1 (en) 1999-11-30 2001-06-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Red emitting luminescent material
JP2001177153A (en) * 1999-12-17 2001-06-29 Sharp Corp Light emitting device
US6777871B2 (en) * 2000-03-31 2004-08-17 General Electric Company Organic electroluminescent devices with enhanced light extraction
US6653765B1 (en) * 2000-04-17 2003-11-25 General Electric Company Uniform angular light distribution from LEDs
GB0017659D0 (en) 2000-07-19 2000-09-06 Secr Defence Light emitting diode with lens
US6361186B1 (en) 2000-08-02 2002-03-26 Lektron Industrial Supply, Inc. Simulated neon light using led's
GB0021892D0 (en) * 2000-09-06 2000-10-25 Shaffer Mark Electroluminescent lamp
JP2002133910A (en) * 2000-10-24 2002-05-10 Toyoda Gosei Co Ltd Phosphor illumination tube
JP2002221616A (en) * 2000-11-21 2002-08-09 Seiko Epson Corp Method and device for manufacturing color filter, method and device for manufacturing liquid crystal device, method and device for manufacturing el device, device for controlling inkjet head, method and device for discharging material and electronic instrument
JP5110744B2 (en) 2000-12-21 2012-12-26 フィリップス ルミレッズ ライティング カンパニー リミテッド ライアビリティ カンパニー Emitting device and manufacturing method thereof
EP1344200A1 (en) * 2000-12-22 2003-09-17 Osram Opto Semiconductors GmbH Led-signal device for traffic lights
US6834979B1 (en) * 2001-10-18 2004-12-28 Ilight Technologies, Inc. Illumination device for simulating neon lighting with reflector
US6686676B2 (en) * 2001-04-30 2004-02-03 General Electric Company UV reflectors and UV-based light sources having reduced UV radiation leakage incorporating the same
US6642652B2 (en) 2001-06-11 2003-11-04 Lumileds Lighting U.S., Llc Phosphor-converted light emitting device
JP3669299B2 (en) 2001-07-12 2005-07-06 住友化学株式会社 Methyl methacrylate-based resin composition and a molded article thereof
EP1418628B1 (en) * 2001-07-26 2013-05-22 Panasonic Corporation Light emitting device using led
WO2003016782A1 (en) * 2001-08-09 2003-02-27 Matsushita Electric Industrial Co., Ltd. Led illuminator and card type led illuminating light source
JP4076329B2 (en) * 2001-08-13 2008-04-16 エイテックス株式会社 Led light bulb
JP2003101078A (en) * 2001-09-25 2003-04-04 Toyoda Gosei Co Ltd Light-emitting device
JP3948650B2 (en) * 2001-10-09 2007-07-25 アバゴ・テクノロジーズ・イーシービーユー・アイピー(シンガポール)プライベート・リミテッド Light emitting diode and a manufacturing method thereof
WO2003056636A1 (en) 2001-12-29 2003-07-10 Hangzhou Fuyang Xinying Dianzi Ltd. A led and led lamp
US7153015B2 (en) 2001-12-31 2006-12-26 Innovations In Optics, Inc. Led white light optical system
US20050148717A1 (en) 2002-06-04 2005-07-07 James Smith Phosphorescent light cover or coating
US7005310B2 (en) * 2002-08-14 2006-02-28 Renesas Technology Corporation Manufacturing method of solid-state image sensing device
US7224000B2 (en) * 2002-08-30 2007-05-29 Lumination, Llc Light emitting diode component
US7800121B2 (en) * 2002-08-30 2010-09-21 Lumination Llc Light emitting diode component
DE60330892D1 (en) * 2002-11-08 2010-02-25 Nichia Corp Light emitting device, phosphor and method for manufacturing a phosphor
US6821078B2 (en) * 2002-11-21 2004-11-23 Americhair Corporation Motor vehicle chair system for physically disabled persons
JP3716252B2 (en) * 2002-12-26 2005-11-16 ローム株式会社 Emitting device and an illumination device
US20040183081A1 (en) * 2003-03-20 2004-09-23 Alexander Shishov Light emitting diode package with self dosing feature and methods of forming same
US6903380B2 (en) * 2003-04-11 2005-06-07 Weldon Technologies, Inc. High power light emitting diode
JP2006525682A (en) 2003-04-30 2006-11-09 クリー インコーポレイテッドCree Inc. High power solid state light emitting device package
JP5566564B2 (en) 2003-05-05 2014-08-06 ジーイー ライティング ソリューションズ エルエルシー Led use bulbs
US6982045B2 (en) * 2003-05-17 2006-01-03 Phosphortech Corporation Light emitting device having silicate fluorescent phosphor
JP4259198B2 (en) * 2003-06-18 2009-04-30 豊田合成株式会社 Manufacturing method of a manufacturing method and a light-emitting device of the light-emitting device the wavelength converting portion
DE102004034166B4 (en) 2003-07-17 2015-08-20 Toyoda Gosei Co., Ltd. The light emitting device
JP4366139B2 (en) * 2003-07-31 2009-11-18 株式会社朝日ラバー Lighting device design system and design method and program of
US20050052885A1 (en) * 2003-09-04 2005-03-10 Amazing International Enterprise Limited Structure of LED decoration lighting set
JP4691955B2 (en) 2003-10-28 2011-06-01 日亜化学工業株式会社 Fluorescent substance and a light emitting device
US20050110387A1 (en) 2003-11-25 2005-05-26 Luna Technologies International, Inc. Photoluminescent sleeve for electric lamps for producing a non-electrical light emitting source
WO2005073629A1 (en) 2004-01-28 2005-08-11 Tir Systems Ltd. Directly viewable luminaire
US20050243550A1 (en) * 2004-04-30 2005-11-03 Albert Stekelenburg LED bulb
US20050242711A1 (en) 2004-04-30 2005-11-03 Joseph Bloomfield Multi-color solid state light emitting device
US7315119B2 (en) * 2004-05-07 2008-01-01 Avago Technologies Ip (Singapore) Pte Ltd Light-emitting device having a phosphor particle layer with specific thickness
CA2466979A1 (en) * 2004-05-18 2005-11-18 Dimitar Prodanov Stereometric superluminescent light emitting diodes (sleds)
US20060007690A1 (en) 2004-07-07 2006-01-12 Tsian-Lin Cheng LED lamp
US7674005B2 (en) 2004-07-29 2010-03-09 Focal Point, Llc Recessed sealed lighting fixture
US7601276B2 (en) * 2004-08-04 2009-10-13 Intematix Corporation Two-phase silicate-based yellow phosphor
US7273300B2 (en) * 2004-08-06 2007-09-25 Lumination Llc Curvilinear LED light source
US7256057B2 (en) * 2004-09-11 2007-08-14 3M Innovative Properties Company Methods for producing phosphor based light sources
KR100666265B1 (en) * 2004-10-18 2007-01-09 엘지이노텍 주식회사 Phosphor and LED using the same
US20060092644A1 (en) 2004-10-28 2006-05-04 Mok Thye L Small package high efficiency illuminator design
US7858408B2 (en) 2004-11-15 2010-12-28 Koninklijke Philips Electronics N.V. LED with phosphor tile and overmolded phosphor in lens
US7671529B2 (en) * 2004-12-10 2010-03-02 Philips Lumileds Lighting Company, Llc Phosphor converted light emitting device
US7541728B2 (en) * 2005-01-14 2009-06-02 Intematix Corporation Display device with aluminate-based green phosphors
KR100682874B1 (en) * 2005-05-02 2007-02-15 삼성전기주식회사 White light emitting device
JP4697405B2 (en) * 2005-05-23 2011-06-08 信越化学工業株式会社 Lens molding silicone resin composition and silicone lenses
US20060270808A1 (en) * 2005-05-24 2006-11-30 Shin-Etsu Chemical Co., Ltd. Epoxy-silicone mixed resin composition, cured article thereof, and light-emitting semiconductor device
US7357530B2 (en) * 2005-07-15 2008-04-15 Bwt Property, Inc. Lighting apparatus for navigational aids
KR100665222B1 (en) * 2005-07-26 2007-01-09 삼성전기주식회사 Led package with diffusing material and method of manufacturing the same
KR100651550B1 (en) * 2005-08-18 2006-11-22 삼성전기주식회사 Lens for led light source composed the upper, middle, low parts
US7281819B2 (en) * 2005-10-25 2007-10-16 Chip Hope Co., Ltd. LED traffic light structure
KR100771806B1 (en) 2005-12-20 2007-10-30 삼성전기주식회사 White light emitting device
JP2009524914A (en) 2006-01-24 2009-07-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ The light-emitting device
US7937865B2 (en) * 2006-03-08 2011-05-10 Intematix Corporation Light emitting sign and display surface therefor
CA2645228A1 (en) 2006-05-02 2007-11-15 Superbulbs, Inc. Method of light dispersion and preferential scattering of certain wavelengths of light for light-emitting diodes and bulbs constructed therefrom
US20080029720A1 (en) 2006-08-03 2008-02-07 Intematix Corporation LED lighting arrangement including light emitting phosphor
EP2074668B1 (en) 2006-10-10 2018-02-28 Tridonic Jennersdorf GmbH Phosphor-converted light emitting diode
US9084328B2 (en) * 2006-12-01 2015-07-14 Cree, Inc. Lighting device and lighting method
US8588830B2 (en) * 2007-02-02 2013-11-19 Inovus Solar, Inc Wireless autonomous solar-powered outdoor lighting and energy and information management network
US20080246044A1 (en) * 2007-04-09 2008-10-09 Siew It Pang LED device with combined Reflector and Spherical Lens
US7999283B2 (en) * 2007-06-14 2011-08-16 Cree, Inc. Encapsulant with scatterer to tailor spatial emission pattern and color uniformity in light emitting diodes
US7942556B2 (en) 2007-06-18 2011-05-17 Xicato, Inc. Solid state illumination device
US7661842B2 (en) * 2007-07-25 2010-02-16 I-Chiun Precision Industry Co., Ltd. Structure of a supporting assembly for surface mount device LED and manufacturing method thereof
KR101374897B1 (en) 2007-08-14 2014-03-17 서울반도체 주식회사 Led package with diffusion means
US20090050911A1 (en) * 2007-08-24 2009-02-26 Cree, Inc. Light emitting device packages using light scattering particles of different size
US7588351B2 (en) 2007-09-27 2009-09-15 Osram Sylvania Inc. LED lamp with heat sink optic
US7984999B2 (en) 2007-10-17 2011-07-26 Xicato, Inc. Illumination device with light emitting diodes and moveable light adjustment member
US20100328925A1 (en) 2008-01-22 2010-12-30 Koninklijke Philips Electronics N.V. Illumination device with led and a transmissive support comprising a luminescent material
US7815338B2 (en) 2008-03-02 2010-10-19 Altair Engineering, Inc. LED lighting unit including elongated heat sink and elongated lens
JP5355030B2 (en) 2008-04-24 2013-11-27 シチズンホールディングス株式会社 Chromaticity adjustment method for Led light and led light source
US9287469B2 (en) * 2008-05-02 2016-03-15 Cree, Inc. Encapsulation for phosphor-converted white light emitting diode
US20090283721A1 (en) * 2008-05-19 2009-11-19 Intematix Corporation Nitride-based red phosphors
US7618157B1 (en) 2008-06-25 2009-11-17 Osram Sylvania Inc. Tubular blue LED lamp with remote phosphor
CN102159880B (en) 2008-09-23 2014-07-30 皇家飞利浦电子股份有限公司 Illumination device with electrical variable scattering element and use of electrical variable scattering element
KR20110066202A (en) 2008-10-01 2011-06-16 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Led with particles in encapsulant for increased light extraction and non-yellow off-state color
US7936802B2 (en) 2008-10-21 2011-05-03 Case Western Reserve University Co-extruded multilayer polymers films for all-polymer lasers
DE102008054029A1 (en) 2008-10-30 2010-05-06 Osram Opto Semiconductors Gmbh The optoelectronic semiconductor component
US9052416B2 (en) 2008-11-18 2015-06-09 Cree, Inc. Ultra-high efficacy semiconductor light emitting devices
US8591057B2 (en) 2008-11-19 2013-11-26 Rohm Co., Ltd. LED lamp
JP2010129300A (en) 2008-11-26 2010-06-10 Hideki Iimura Semiconductor light-emitting lamp and electric-bulb-shaped semiconductor light-emitting lamp
US8274215B2 (en) * 2008-12-15 2012-09-25 Intematix Corporation Nitride-based, red-emitting phosphors
JP2010171342A (en) 2009-01-26 2010-08-05 Sony Corp Color conversion member, method of manufacturing the same, light-emitting device, and display
JP2010199145A (en) 2009-02-23 2010-09-09 Ushio Inc Light source equipment
US8597963B2 (en) 2009-05-19 2013-12-03 Intematix Corporation Manufacture of light emitting devices with phosphor wavelength conversion
CA2765199A1 (en) 2009-06-23 2011-01-13 Altair Engineering, Inc. Led lamp with a wavelength converting layer
US8110839B2 (en) 2009-07-13 2012-02-07 Luxingtek, Ltd. Lighting device, display, and method for manufacturing the same
JP5669480B2 (en) 2009-08-19 2015-02-12 エルジー イノテック カンパニー リミテッド Lighting device
US20110103053A1 (en) 2009-11-02 2011-05-05 Ledtech Electronics Corp. LED Lighting Device
US20110149548A1 (en) * 2009-12-22 2011-06-23 Intematix Corporation Light emitting diode based linear lamps
CN201621505U (en) 2010-02-04 2010-11-03 东莞市坤广光电有限公司 LED lamp tube with function of dissipating heat
US8771577B2 (en) 2010-02-16 2014-07-08 Koninklijke Philips N.V. Light emitting device with molded wavelength converting layer
US20110227102A1 (en) 2010-03-03 2011-09-22 Cree, Inc. High efficacy led lamp with remote phosphor and diffuser configuration
US8931933B2 (en) 2010-03-03 2015-01-13 Cree, Inc. LED lamp with active cooling element
JP4792531B2 (en) 2010-03-15 2011-10-12 兵治 新山 The light-emitting device
CN201628127U (en) 2010-04-15 2010-11-10 台州立发电子有限公司 LED fluorescent lamp
US20110280036A1 (en) 2010-05-12 2011-11-17 Aqua-Tech Optical Corporation Light guide module and manufacturing method thereof
CN102261577B (en) 2010-05-31 2014-05-07 光宝电子(广州)有限公司 Light emitting diode lamp tube
CN101881387A (en) 2010-06-10 2010-11-10 鸿富锦精密工业(深圳)有限公司;鸿海精密工业股份有限公司 LED fluorescent lamp
US20110303940A1 (en) 2010-06-14 2011-12-15 Hyo Jin Lee Light emitting device package using quantum dot, illumination apparatus and display apparatus
US8506105B2 (en) 2010-08-25 2013-08-13 Generla Electric Company Thermal management systems for solid state lighting and other electronic systems
WO2012043543A1 (en) 2010-09-27 2012-04-05 東芝ライテック株式会社 Light emitting device and lighting device
CN101975345B (en) 2010-10-28 2013-05-08 鸿富锦精密工业(深圳)有限公司 LED (Light Emitting Diode) fluorescent lamp
KR20120137719A (en) 2011-06-13 2012-12-24 주식회사 포스코엘이디 Omnidirectional lamp
CN103649624A (en) 2011-07-15 2014-03-19 Lg伊诺特有限公司 Lighting device
US20130021792A1 (en) 2011-07-24 2013-01-24 Cree, Inc. Modular indirect suspended/ceiling mount fixture
US8905575B2 (en) 2012-02-09 2014-12-09 Cree, Inc. Troffer-style lighting fixture with specular reflector
US9482424B2 (en) 2012-06-05 2016-11-01 Koninklijke Philips Electronics N.V. Lighting device having a remote wavelength converting layer
EP3008377B1 (en) 2013-06-03 2017-11-01 Philips Lighting Holding B.V. Tubular lighting device
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light

Patent Citations (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593055A (en) * 1969-04-16 1971-07-13 Bell Telephone Labor Inc Electro-luminescent device
US3676668A (en) * 1969-12-29 1972-07-11 Gen Electric Solid state lamp assembly
US3691482A (en) * 1970-01-19 1972-09-12 Bell Telephone Labor Inc Display system
US3709685A (en) * 1970-02-19 1973-01-09 Ilford Ltd Photoconductive zinc oxide sensitized by substituted thiazolidene dyes
US4104076A (en) * 1970-03-17 1978-08-01 Saint-Gobain Industries Manufacture of novel grey and bronze glasses
US3670193A (en) * 1970-05-14 1972-06-13 Duro Test Corp Electric lamps producing energy in the visible and ultra-violet ranges
US3793046A (en) * 1970-12-04 1974-02-19 Philips Corp Method of manufacturing a pigment
US3743833A (en) * 1971-07-16 1973-07-03 Eastman Kodak Co Radiographic elements and binders
US3875456A (en) * 1972-04-04 1975-04-01 Hitachi Ltd Multi-color semiconductor lamp
US3932881A (en) * 1972-09-05 1976-01-13 Nippon Electric Co., Inc. Electroluminescent device including dichroic and infrared reflecting components
US3819973A (en) * 1972-11-02 1974-06-25 A Hosford Electroluminescent filament
US3819974A (en) * 1973-03-12 1974-06-25 D Stevenson Gallium nitride metal-semiconductor junction light emitting diode
US3972717A (en) * 1973-03-21 1976-08-03 Hoechst Aktiengesellschaft Electrophotographic recording material
US3937998A (en) * 1973-10-05 1976-02-10 U.S. Philips Corporation Luminescent coating for low-pressure mercury vapour discharge lamp
US4047075A (en) * 1975-03-01 1977-09-06 Licentia-Patent-Verwaltungs-G.M.B.H. Encapsulated light-emitting diode structure and array thereof
US4143394A (en) * 1976-07-30 1979-03-06 Licentia Patent-Verwaltungs-G.M.B.H. Semiconductor luminescence device with housing
US4191943A (en) * 1976-10-18 1980-03-04 Fairchild Camera And Instrument Corporation Filler-in-plastic light-scattering cover
US4211955A (en) * 1978-03-02 1980-07-08 Ray Stephen W Solid state lamp
US4315192A (en) * 1979-12-31 1982-02-09 Westinghouse Electric Corp. Fluorescent lamp using high performance phosphor blend which is protected from color shifts by a very thin overcoat of stable phosphor of similar chromaticity
US4443532A (en) * 1981-07-29 1984-04-17 Bell Telephone Laboratories, Incorporated Induced crystallographic modification of aromatic compounds
US4667036A (en) * 1983-08-27 1987-05-19 Basf Aktiengesellschaft Concentration of light over a particular area, and novel perylene-3,4,9,10-tetracarboxylic acid diimides
US4573766A (en) * 1983-12-19 1986-03-04 Cordis Corporation LED Staggered back lighting panel for LCD module
US4678285A (en) * 1984-01-13 1987-07-07 Ricoh Company, Ltd. Liquid crystal color display device
US4772885A (en) * 1984-11-22 1988-09-20 Ricoh Company, Ltd. Liquid crystal color display device
US4638214A (en) * 1985-03-25 1987-01-20 General Electric Company Fluorescent lamp containing aluminate phosphor
US4727003A (en) * 1985-09-30 1988-02-23 Ricoh Company, Ltd. Electroluminescence device
US4845223A (en) * 1985-12-19 1989-07-04 Basf Aktiengesellschaft Fluorescent aryloxy-substituted perylene-3,4,9,10-tetracarboxylic acid diimides
US4946621A (en) * 1986-04-29 1990-08-07 Centre National De La Recherche Scientifique (Cnrs) Luminescent mixed borates based on rare earths
US4859539A (en) * 1987-03-23 1989-08-22 Eastman Kodak Company Optically brightened polyolefin coated paper support
US5110931A (en) * 1987-11-27 1992-05-05 Hoechst Aktiengesellschaft Process for the preparation of n,n'-dimethylperylene-3,4,9,10-tetracarboxylic diimide in high-hiding pigment form
US5141916A (en) * 1988-09-22 1992-08-25 Nitto Denko Corporation Thermal transfer image reception paper
US4915478A (en) * 1988-10-05 1990-04-10 The United States Of America As Represented By The Secretary Of The Navy Low power liquid crystal display backlight
US4918497A (en) * 1988-12-14 1990-04-17 Cree Research, Inc. Blue light emitting diode formed in silicon carbide
US5126214A (en) * 1989-03-15 1992-06-30 Idemitsu Kosan Co., Ltd. Electroluminescent element
US4992704A (en) * 1989-04-17 1991-02-12 Basic Electronics, Inc. Variable color light emitting diode
US5131916A (en) * 1990-03-01 1992-07-21 Bayer Aktiengesellschaft Colored fluorescent polymer emulsions for marker pens: graft copolymers and fluorescent dyes in aqueous phase
US5210051A (en) * 1990-03-27 1993-05-11 Cree Research, Inc. High efficiency light emitting diodes from bipolar gallium nitride
US5143438A (en) * 1990-10-15 1992-09-01 Thorn Emi Plc Light sources
US5237182A (en) * 1990-11-29 1993-08-17 Sharp Kabushiki Kaisha Electroluminescent device of compound semiconductor with buffer layer
US5143433A (en) * 1991-11-01 1992-09-01 Litton Systems Canada Limited Night vision backlighting system for liquid crystal displays
US5439971A (en) * 1991-11-12 1995-08-08 Eastman Chemical Company Fluorescent pigment concentrates
US5208462A (en) * 1991-12-19 1993-05-04 Allied-Signal Inc. Wide bandwidth solid state optical source
US5211467A (en) * 1992-01-07 1993-05-18 Rockwell International Corporation Fluorescent lighting system
US5283425A (en) * 1992-02-06 1994-02-01 Rohm Co., Ltd. Light emitting element array substrate with reflecting means
US5763901A (en) * 1992-12-17 1998-06-09 Kabushiki Kaisha Toshiba Semiconductor light-emitting device and method for manufacturing the device
US5518808A (en) * 1992-12-18 1996-05-21 E. I. Du Pont De Nemours And Company Luminescent materials prepared by coating luminescent compositions onto substrate particles
US5869199A (en) * 1993-03-26 1999-02-09 Sumitomo Electric Industries, Ltd. Organic electroluminescent elements comprising triazoles
US5557168A (en) * 1993-04-02 1996-09-17 Okaya Electric Industries Co., Ltd. Gas-discharging type display device and a method of manufacturing
US5405709A (en) * 1993-09-13 1995-04-11 Eastman Kodak Company White light emitting internal junction organic electroluminescent device
US5619356A (en) * 1993-09-16 1997-04-08 Sharp Kabushiki Kaisha Reflective liquid crystal display device having a compensator with a retardation value between 0.15 μm and 0.38 μm and a single polarizer
US5770887A (en) * 1993-10-08 1998-06-23 Mitsubishi Cable Industries, Ltd. GaN single crystal
US5535230A (en) * 1994-04-06 1996-07-09 Shogo Tzuzuki Illuminating light source device using semiconductor laser element
US5771039A (en) * 1994-06-06 1998-06-23 Ditzik; Richard J. Direct view display device integration techniques
US5777350A (en) * 1994-12-02 1998-07-07 Nichia Chemical Industries, Ltd. Nitride semiconductor light-emitting device
US5660461A (en) * 1994-12-08 1997-08-26 Quantum Devices, Inc. Arrays of optoelectronic devices and method of making same
US20060049416A1 (en) * 1996-03-26 2006-03-09 Bruce Baretz Solid state white light emitter and display using same
US7943945B2 (en) * 1996-03-26 2011-05-17 Cree, Inc. Solid state white light emitter and display using same
US20040016938A1 (en) * 1996-03-26 2004-01-29 Bruce Baretz Solid state white light emitter and display using same
US6600175B1 (en) * 1996-03-26 2003-07-29 Advanced Technology Materials, Inc. Solid state white light emitter and display using same
US20010000622A1 (en) * 1996-06-26 2001-05-03 Osram Opto Semiconductors Gmbh & Co., Ohg Light-radiating semiconductor component with a luminescence conversion element
US6576930B2 (en) * 1996-06-26 2003-06-10 Osram Opto Semiconductors Gmbh Light-radiating semiconductor component with a luminescence conversion element
US20040016908A1 (en) * 1996-09-20 2004-01-29 Klaus Hohn Wavelength-converting casting composition and white light-emitting semiconductor component
US5947587A (en) * 1996-10-16 1999-09-07 U.S. Philips Corporation Signal lamp with LEDs
US6340824B1 (en) * 1997-09-01 2002-01-22 Kabushiki Kaisha Toshiba Semiconductor light emitting device including a fluorescent material
US6255670B1 (en) * 1998-02-06 2001-07-03 General Electric Company Phosphors for light generation from light emitting semiconductors
US6580097B1 (en) * 1998-02-06 2003-06-17 General Electric Company Light emitting device with phosphor composition
US5959316A (en) * 1998-09-01 1999-09-28 Hewlett-Packard Company Multiple encapsulation of phosphor-LED devices
US7220022B2 (en) * 1999-02-12 2007-05-22 Fiber Optic Designs, Inc. Jacketed LED assemblies and light strings containing same
US6680569B2 (en) * 1999-02-18 2004-01-20 Lumileds Lighting U.S. Llc Red-deficiency compensating phosphor light emitting device
US6504301B1 (en) * 1999-09-03 2003-01-07 Lumileds Lighting, U.S., Llc Non-incandescent lightbulb package using light emitting diodes
US6555958B1 (en) * 2000-05-15 2003-04-29 General Electric Company Phosphor for down converting ultraviolet light of LEDs to blue-green light
US6538375B1 (en) * 2000-08-17 2003-03-25 General Electric Company Oled fiber light source
US20020047516A1 (en) * 2000-10-24 2002-04-25 Tadanobu Iwasa Fluorescent tube
US6614170B2 (en) * 2000-12-29 2003-09-02 Arima Optoelectronics Corporation Light emitting diode with light conversion using scattering optical media
US6576488B2 (en) * 2001-06-11 2003-06-10 Lumileds Lighting U.S., Llc Using electrophoresis to produce a conformally coated phosphor-converted light emitting semiconductor
US20030038596A1 (en) * 2001-08-21 2003-02-27 Wen-Chih Ho Light-mixing layer and method
US20040104391A1 (en) * 2001-09-03 2004-06-03 Toshihide Maeda Semiconductor light emitting device, light emitting apparatus and production method for semiconductor light emitting device
US20030052595A1 (en) * 2001-09-20 2003-03-20 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Illumination unit having at least one LED as light source
US20030102810A1 (en) * 2001-11-30 2003-06-05 Mule Lighting, Inc. Retrofit light emitting diode tube
US6860628B2 (en) * 2002-07-17 2005-03-01 Jonas J. Robertson LED replacement for fluorescent lighting
US7479662B2 (en) * 2002-08-30 2009-01-20 Lumination Llc Coated LED with improved efficiency
US6717353B1 (en) * 2002-10-14 2004-04-06 Lumileds Lighting U.S., Llc Phosphor converted light emitting device
US20050093430A1 (en) * 2003-02-26 2005-05-05 Cree, Inc. Composite white light source and method for fabricating
US6869812B1 (en) * 2003-05-13 2005-03-22 Heng Liu High power AllnGaN based multi-chip light emitting diode
US7029935B2 (en) * 2003-09-09 2006-04-18 Cree, Inc. Transmissive optical elements including transparent plastic shell having a phosphor dispersed therein, and methods of fabricating same
US20050051782A1 (en) * 2003-09-09 2005-03-10 Negley Gerald H. Transmissive optical elements including transparent plastic shell having a phosphor dispersed therein, and methods of fabricating same
US20050057917A1 (en) * 2003-09-17 2005-03-17 Yasushi Yatsuda Light source and vehicle lamp
US20050168127A1 (en) * 2004-01-30 2005-08-04 Shih-Chang Shei [white light led]
US7575697B2 (en) * 2004-08-04 2009-08-18 Intematix Corporation Silicate-based green phosphors
US20060028122A1 (en) * 2004-08-04 2006-02-09 Intematix Corporation Novel silicate-based yellow-green phosphors
US7390437B2 (en) * 2004-08-04 2008-06-24 Intematix Corporation Aluminate-based blue phosphors
US7943951B2 (en) * 2005-06-17 2011-05-17 Samsung Led Co., Ltd. Light emitting device package
US7655156B2 (en) * 2005-08-03 2010-02-02 Intematix Corporation Silicate-based orange phosphors
US20080111472A1 (en) * 2006-11-10 2008-05-15 Intematix Corporation Aluminum-silicate based orange-red phosphors with mixed divalent and trivalent cations
US7686478B1 (en) * 2007-01-12 2010-03-30 Ilight Technologies, Inc. Bulb for light-emitting diode with color-converting insert
US7972030B2 (en) * 2007-03-05 2011-07-05 Intematix Corporation Light emitting diode (LED) based lighting systems
US7663315B1 (en) * 2007-07-24 2010-02-16 Ilight Technologies, Inc. Spherical bulb for light-emitting diode with spherical inner cavity
US20110147778A1 (en) * 2009-12-17 2011-06-23 Nichia Corporation Light emitting device
US20120086034A1 (en) * 2010-10-05 2012-04-12 Intematix Corporation Solid-state light emitting devices and signage with photoluminescence wavelength conversion

Cited By (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8801253B2 (en) 2003-03-26 2014-08-12 Optim Llc Illumination device
US20090185392A1 (en) * 2003-03-26 2009-07-23 Optim, Inc. Detachable illumination system
US8215815B2 (en) 2005-06-07 2012-07-10 Oree, Inc. Illumination apparatus and methods of forming the same
US20090141476A1 (en) * 2005-06-07 2009-06-04 Noam Meir Illumination Apparatus and Methods of Forming the Same
US8272758B2 (en) 2005-06-07 2012-09-25 Oree, Inc. Illumination apparatus and methods of forming the same
US8128272B2 (en) 2005-06-07 2012-03-06 Oree, Inc. Illumination apparatus
US20100002414A1 (en) * 2005-06-07 2010-01-07 Noam Meir Illumination Apparatus and Methods of Forming the Same
US8641254B2 (en) 2005-06-07 2014-02-04 Oree, Inc. Illumination apparatus
US8414174B2 (en) 2005-06-07 2013-04-09 Oree, Inc. Illumination apparatus
US8579466B2 (en) 2005-06-07 2013-11-12 Oree, Inc. Illumination apparatus and methods of forming the same
US20080027200A1 (en) * 2006-07-26 2008-01-31 Shin -Etsu Chemical Co., Ltd. Phosphor-containing curable silicone composition for led and led light-emitting device using the composition
US9595644B2 (en) 2006-08-03 2017-03-14 Intematix Corporation LED lighting arrangement including light emitting phosphor
US20110187262A1 (en) * 2006-08-03 2011-08-04 Intematix Corporation Led lighting arrangement including light emitting phosphor
US9884990B2 (en) 2006-11-24 2018-02-06 Ge Phosphors Technology, Llc Phosphor, method of producing the same, and light emitting apparatus
US9624427B2 (en) 2006-11-24 2017-04-18 Ge Phosphors Technology, Llc Phosphor, method of producing the same, and light emitting apparatus
US20080214896A1 (en) * 2007-01-10 2008-09-04 Krupa Robert J Endoscope with detachable elongation portion
US20090066218A1 (en) * 2007-09-06 2009-03-12 Ben Fan Method for generating low color temperature light and light emitting device adopting the same
US7851990B2 (en) * 2007-09-06 2010-12-14 He Shan Lide Electronic Enterprise Company Ltd. Method for generating low color temperature light and light emitting device adopting the same
US20090290380A1 (en) * 2007-12-19 2009-11-26 Noam Meir Waveguide-based packaging structures and methods for discrete lighting elements
US20090161369A1 (en) * 2007-12-19 2009-06-25 Keren Regev Waveguide sheet and methods for manufacturing the same
US7826698B1 (en) 2007-12-19 2010-11-02 Oree, Inc. Elimination of stitch artifacts in a planar illumination area
US8238703B2 (en) 2007-12-19 2012-08-07 Oree Inc. Waveguide sheet containing in-coupling, propagation, and out-coupling regions
US20100272392A1 (en) * 2007-12-19 2010-10-28 Oree Inc. Elimination of stitch artifacts in a planar illumination area
US20090161341A1 (en) * 2007-12-19 2009-06-25 Noam Meir Planar White Illumination Apparatus
US20110013415A1 (en) * 2007-12-19 2011-01-20 Oree Inc. Discrete light guide-based planar illumination area
US8182128B2 (en) 2007-12-19 2012-05-22 Oree, Inc. Planar white illumination apparatus
US20090161361A1 (en) * 2007-12-19 2009-06-25 Noam Meir Discrete lighting elements and planar assembly thereof
US8550684B2 (en) 2007-12-19 2013-10-08 Oree, Inc. Waveguide-based packaging structures and methods for discrete lighting elements
US8459856B2 (en) 2007-12-19 2013-06-11 Oree, Inc. Planar white illumination apparatus
US8064743B2 (en) 2007-12-19 2011-11-22 Oree, Inc. Discrete light guide-based planar illumination area
US8172447B2 (en) 2007-12-19 2012-05-08 Oree, Inc. Discrete lighting elements and planar assembly thereof
US8542964B2 (en) * 2007-12-19 2013-09-24 Oree, Inc. Waveguide sheet containing in-coupling, propagation, and out-coupling regions
US8928025B2 (en) 2007-12-20 2015-01-06 Ilumisys, Inc. LED lighting apparatus with swivel connection
US20090190371A1 (en) * 2008-01-24 2009-07-30 Optim, Inc. Monolithic illumination device
US20090225565A1 (en) * 2008-03-05 2009-09-10 Micha Zimmermann Sub-assembly and methods for forming the same
US8231237B2 (en) 2008-03-05 2012-07-31 Oree, Inc. Sub-assembly and methods for forming the same
US20110182055A1 (en) * 2008-03-19 2011-07-28 I2Ic Corporation Photoluminescent Light Source
US20110084297A1 (en) * 2008-03-28 2011-04-14 Toshifumi Ogata Molded resin product, semiconductor light-emitting source, lighting device, and method for manufacturing molded resin product
US8890186B2 (en) 2008-03-28 2014-11-18 Panasonic Corporation Molded resin product, semiconductor light-emitting source, lighting device, and method for manufacturing molded resin product
US8807785B2 (en) 2008-05-23 2014-08-19 Ilumisys, Inc. Electric shock resistant L.E.D. based light
US9164218B2 (en) 2008-07-10 2015-10-20 Oree, Inc. Slim waveguide coupling apparatus and method
US20100008628A1 (en) * 2008-07-10 2010-01-14 Yosi Shani Slim waveguide coupling apparatus and method
US20100220484A1 (en) * 2008-07-10 2010-09-02 Oree Inc. Slim waveguide coupling apparatus and method
US8297786B2 (en) 2008-07-10 2012-10-30 Oree, Inc. Slim waveguide coupling apparatus and method
US8301002B2 (en) 2008-07-10 2012-10-30 Oree, Inc. Slim waveguide coupling apparatus and method
US20100033964A1 (en) * 2008-08-08 2010-02-11 Photonics & Co., Limited Light emitting diode (led) lighting device
US20100098377A1 (en) * 2008-10-16 2010-04-22 Noam Meir Light confinement using diffusers
US9398661B2 (en) 2008-10-24 2016-07-19 Ilumisys, Inc. Light and light sensor
US9635727B2 (en) 2008-10-24 2017-04-25 Ilumisys, Inc. Light and light sensor
US9353939B2 (en) 2008-10-24 2016-05-31 iLumisys, Inc Lighting including integral communication apparatus
US8946996B2 (en) 2008-10-24 2015-02-03 Ilumisys, Inc. Light and light sensor
US8901823B2 (en) 2008-10-24 2014-12-02 Ilumisys, Inc. Light and light sensor
US9101026B2 (en) 2008-10-24 2015-08-04 Ilumisys, Inc. Integration of LED lighting with building controls
US9585216B2 (en) 2008-10-24 2017-02-28 Ilumisys, Inc. Integration of LED lighting with building controls
US20100208469A1 (en) * 2009-02-10 2010-08-19 Yosi Shani Illumination surfaces with reduced linear artifacts
US9349924B2 (en) 2009-03-19 2016-05-24 Koninklijke Phililps N.V. Illumination device with remote luminescent material
US8624527B1 (en) 2009-03-27 2014-01-07 Oree, Inc. Independently controllable illumination device
US20100320904A1 (en) * 2009-05-13 2010-12-23 Oree Inc. LED-Based Replacement Lamps for Incandescent Fixtures
US20100315817A1 (en) * 2009-05-13 2010-12-16 Oree Inc. Low-profile illumination device
US8328406B2 (en) 2009-05-13 2012-12-11 Oree, Inc. Low-profile illumination device
US8246209B2 (en) 2009-05-20 2012-08-21 Foxsemicon Integrated Technology, Inc. Illumination device
US20100296309A1 (en) * 2009-05-20 2010-11-25 Foxsemicon Integrated Technology, Inc. Illumination device
US20100314996A1 (en) * 2009-06-11 2010-12-16 Van De Ven Antony P Hot light emitting diode (led) lighting systems and methods
US9074737B2 (en) 2009-06-11 2015-07-07 Cree, Inc. Hot light emitting diode (LED) lighting systems
US8217567B2 (en) * 2009-06-11 2012-07-10 Cree, Inc. Hot light emitting diode (LED) lighting systems
EP2446190A4 (en) * 2009-06-23 2013-02-20 Ilumisys Inc Led lamp with a wavelength converting layer
EP2446190A2 (en) * 2009-06-23 2012-05-02 Altair Engineering, Inc. Led lamp with a wavelength converting layer
US8727597B2 (en) 2009-06-24 2014-05-20 Oree, Inc. Illumination apparatus with high conversion efficiency and methods of forming the same
EP2491296A2 (en) * 2009-10-22 2012-08-29 Light Prescriptions Innovators, LLC. Solid-state light bulb
EP2491296A4 (en) * 2009-10-22 2013-10-09 Light Prescriptions Innovators Solid-state light bulb
US8840282B2 (en) 2010-03-26 2014-09-23 Ilumisys, Inc. LED bulb with internal heat dissipating structures
US9013119B2 (en) 2010-03-26 2015-04-21 Ilumisys, Inc. LED light with thermoelectric generator
US20130092965A1 (en) * 2010-03-30 2013-04-18 Naoto Kijima Light emitting device
US8835199B2 (en) 2010-07-28 2014-09-16 GE Lighting Solutions, LLC Phosphor suspended in silicone, molded/formed and used in a remote phosphor configuration
WO2012015726A1 (en) * 2010-07-28 2012-02-02 GE Lighting Solutions, LLC Phosphor suspended in silicone, molded/formed and used in a remote phosphor configuration
US8513872B2 (en) 2010-08-05 2013-08-20 Sharp Kabushiki Kaisha Light emitting apparatus and method for manufacturing thereof
US8534901B2 (en) 2010-09-13 2013-09-17 Teledyne Reynolds, Inc. Collimating waveguide apparatus and method
US9335029B2 (en) 2010-10-14 2016-05-10 Cree, Inc. Lighting device with remote lumiphor and non-planar optical element
US9140429B2 (en) 2010-10-14 2015-09-22 Cree, Inc. Optical element edge treatment for lighting device
US8894430B2 (en) 2010-10-29 2014-11-25 Ilumisys, Inc. Mechanisms for reducing risk of shock during installation of light tube
US8491140B2 (en) 2010-11-05 2013-07-23 Cree, Inc. Lighting device with multiple emitters and remote lumiphor
US20140009959A1 (en) * 2011-03-22 2014-01-09 Lg Innotek Co., Ltd. Display device and light conversion member
US9976722B2 (en) * 2011-03-22 2018-05-22 Lg Innotek Co., Ltd. Display device and light conversion member
CN102185082A (en) * 2011-04-08 2011-09-14 深圳市华星光电技术有限公司 Light-emitting diode structure and light-emitting diode structure manufacturing method
US8608328B2 (en) 2011-05-06 2013-12-17 Teledyne Technologies Incorporated Light source with secondary emitter conversion element
US9957351B2 (en) 2011-08-05 2018-05-01 Sabic Global Technologies B.V. Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions
US9290618B2 (en) 2011-08-05 2016-03-22 Sabic Global Technologies B.V. Polycarbonate compositions having enhanced optical properties, methods of making and articles comprising the polycarbonate compositions
US9897276B2 (en) * 2011-08-26 2018-02-20 Cree, Inc. Reduced phosphor lighting devices
US20130050979A1 (en) * 2011-08-26 2013-02-28 Antony P. Van de Ven Reduced phosphor lighting devices
US9222640B2 (en) * 2011-10-18 2015-12-29 Tsmc Solid State Lighting Ltd. Coated diffuser cap for LED illumination device
US20130094180A1 (en) * 2011-10-18 2013-04-18 Taiwan Semiconductor Manufacturing Company, Ltd. Coated diffuser cap for led illumination device
US8962117B2 (en) 2011-10-27 2015-02-24 Sabic Global Technologies B.V. Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate
US8591072B2 (en) 2011-11-16 2013-11-26 Oree, Inc. Illumination apparatus confining light by total internal reflection and methods of forming the same
US9039244B2 (en) 2011-11-16 2015-05-26 Oree, Inc. Illumination apparatus confining light by total internal reflection and methods of forming the same
US8840276B2 (en) 2011-11-16 2014-09-23 Oree, Inc. Illumination apparatus confining light by total internal reflection and methods of forming the same
US9711695B2 (en) 2012-02-03 2017-07-18 Sabic Global Technologies B.V. Light emitting diode device and method for production thereof containing conversion material chemistry
WO2013116697A1 (en) * 2012-02-03 2013-08-08 Sabic Innovative Plastics Ip B.V. Light emitting diode device and method for production thereof containing conversion material chemistry
US9490405B2 (en) * 2012-02-03 2016-11-08 Sabic Innovative Plastics Ip B.V. Light emitting diode device and method for production thereof containing conversion material chemistry
US20130200415A1 (en) * 2012-02-03 2013-08-08 Sabic Innovative Plastics Ip B.V. Light emitting diode device and method for production thereof containing conversion material chemistry
US9299898B2 (en) 2012-02-29 2016-03-29 Sabic Global Technologies B.V. Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same
US9287471B2 (en) 2012-02-29 2016-03-15 Sabic Global Technologies B.V. Polycarbonate compositions containing conversion material chemistry and having enhanced optical properties, methods of making and articles comprising the same
US9771452B2 (en) 2012-02-29 2017-09-26 Sabic Global Technologies B.V. Plastic composition comprising a polycarbonate made from low sulfur bisphenol A, and articles made therefrom
WO2013182950A1 (en) * 2012-06-05 2013-12-12 Koninklijke Philips N.V. Lighting device having a remote wave length converting layer
US9482424B2 (en) 2012-06-05 2016-11-01 Koninklijke Philips Electronics N.V. Lighting device having a remote wavelength converting layer
US9857519B2 (en) 2012-07-03 2018-01-02 Oree Advanced Illumination Solutions Ltd. Planar remote phosphor illumination apparatus
US9807842B2 (en) 2012-07-09 2017-10-31 Ilumisys, Inc. System and method for controlling operation of an LED-based light
CN104918992A (en) * 2012-10-25 2015-09-16 沙特基础全球技术有限公司 Light emitting diode devices, method of manufacture, uses thereof
US9821523B2 (en) * 2012-10-25 2017-11-21 Sabic Global Technologies B.V. Light emitting diode devices, method of manufacture, uses thereof
US20140117393A1 (en) * 2012-10-25 2014-05-01 Sabic Innovative Plastics Ip B.V. Light emitting diode devices, method of manufacture, uses thereof
US9346949B2 (en) 2013-02-12 2016-05-24 Sabic Global Technologies B.V. High reflectance polycarbonate
EP2985516A4 (en) * 2013-03-04 2016-11-09 Shinetsu Chemical Co Turn signal for vehicle
US20160049561A1 (en) * 2013-03-13 2016-02-18 Koninklijke Philips N.V. Encapsulated led lens with bottom reflectors
US9285084B2 (en) 2013-03-14 2016-03-15 Ilumisys, Inc. Diffusers for LED-based lights
US9587790B2 (en) 2013-03-15 2017-03-07 Cree, Inc. Remote lumiphor solid state lighting devices with enhanced light extraction
US9553244B2 (en) 2013-05-16 2017-01-24 Sabic Global Technologies B.V. Branched polycarbonate compositions having conversion material chemistry and articles thereof
US9006378B2 (en) 2013-05-29 2015-04-14 Sabic Global Technologies B.V. Color stable thermoplastic composition
US9772086B2 (en) 2013-05-29 2017-09-26 Sabic Innovative Plastics Ip B.V. Illuminating devices with color stable thermoplastic light transmitting articles
US9267650B2 (en) 2013-10-09 2016-02-23 Ilumisys, Inc. Lens for an LED-based light
US20150198319A1 (en) * 2013-11-21 2015-07-16 Ford Glaobal Technologies, LLC Photoluminescent dynamic lighting
US9212809B2 (en) * 2013-11-21 2015-12-15 Ford Global Technologies, Llc Photoluminescent dynamic lighting
US9574717B2 (en) 2014-01-22 2017-02-21 Ilumisys, Inc. LED-based light with addressed LEDs
US20150252965A1 (en) * 2014-03-07 2015-09-10 Intematix Corporation Solid-state linear lighting arrangements including light emitting phosphor
US9510400B2 (en) 2014-05-13 2016-11-29 Ilumisys, Inc. User input systems for an LED-based light

Also Published As

Publication number Publication date Type
US20120182715A1 (en) 2012-07-19 application
JP2013254972A (en) 2013-12-19 application
US20120187822A1 (en) 2012-07-26 application
CN102062359A (en) 2011-05-18 application
US20160141461A1 (en) 2016-05-19 application
US20100067217A1 (en) 2010-03-18 application
US20110187262A1 (en) 2011-08-04 application
US20120187823A1 (en) 2012-07-26 application
US9045688B2 (en) 2015-06-02 grant
EP2055147A2 (en) 2009-05-06 application
US20100067216A1 (en) 2010-03-18 application
US8067884B2 (en) 2011-11-29 grant
US20120187441A1 (en) 2012-07-26 application
WO2008019041A2 (en) 2008-02-14 application
JP2009545888A (en) 2009-12-24 application
WO2008019041A3 (en) 2008-10-30 application
US9595644B2 (en) 2017-03-14 grant
EP2055147A4 (en) 2011-05-18 application
KR20090040360A (en) 2009-04-23 application

Similar Documents

Publication Publication Date Title
US8292468B2 (en) Solid state light source light bulb
US6653765B1 (en) Uniform angular light distribution from LEDs
US6255670B1 (en) Phosphors for light generation from light emitting semiconductors
US7564180B2 (en) Light emission device and method utilizing multiple emitters and multiple phosphors
US20090184333A1 (en) Light emitting diode device
US20070274063A1 (en) Lighting device and method of making
US20070241657A1 (en) White light apparatus with enhanced color contrast
US20130293098A1 (en) Solid-state linear lighting arrangements including light emitting phosphor
US6294800B1 (en) Phosphors for white light generation from UV emitting diodes
US20060255710A1 (en) Illumination system comprising a radiation source and a fluorescent material
US20030025449A1 (en) Hybrid LED
US20090001390A1 (en) Matrix material including an embedded dispersion of beads for a light-emitting device
US6614170B2 (en) Light emitting diode with light conversion using scattering optical media
US8252613B1 (en) Color stable manganese-doped phosphors
US20040263074A1 (en) White light emitting device
US20080030993A1 (en) High Efficiency Light Source Using Solid-State Emitter and Down-Conversion Material
US20060022582A1 (en) White LEDs with tunable CRI
US20060082296A1 (en) Mixture of alkaline earth metal thiogallate green phosphor and sulfide red phosphor for phosphor-converted LED
US6890234B2 (en) LED cross-linkable phosphor coating
US20160102819A1 (en) Light source device and vehicle lamp
US20040263073A1 (en) White light emitting device
Fujita et al. Luminescence characteristics of YAG glass–ceramic phosphor for white LED
EP1480278A2 (en) Light emitting diode comprising a fluorescent multilayer
US20070012931A1 (en) White semiconductor light emitting device
US20070221938A1 (en) Warm White Lamps with Customizable CRI

Legal Events

Date Code Title Description
AS Assignment

Owner name: INTEMATIX CORPORATION, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LI, YI-QUN;REEL/FRAME:019010/0374

Effective date: 20070220