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WO2011044931A1 - Dispositif d'éclairage pour produire une lumière mixte blanche - Google Patents

Dispositif d'éclairage pour produire une lumière mixte blanche Download PDF

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Publication number
WO2011044931A1
WO2011044931A1 PCT/EP2009/063395 EP2009063395W WO2011044931A1 WO 2011044931 A1 WO2011044931 A1 WO 2011044931A1 EP 2009063395 W EP2009063395 W EP 2009063395W WO 2011044931 A1 WO2011044931 A1 WO 2011044931A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
phosphor
emitting diode
lighting device
blue
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.)
Ceased
Application number
PCT/EP2009/063395
Other languages
German (de)
English (en)
Inventor
Ralph Bertram
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.)
Osram GmbH
Original Assignee
Osram GmbH
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
Application filed by Osram GmbH filed Critical Osram GmbH
Priority to PCT/EP2009/063395 priority Critical patent/WO2011044931A1/fr
Publication of WO2011044931A1 publication Critical patent/WO2011044931A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/77342—Silicates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
    • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
    • H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/851—Wavelength conversion means

Definitions

  • the invention relates to a lighting device with at least one red light-emitting diode and at least one phosphor-converted blue light-emitting diode for producing a white mixed light.
  • US 7,213,940 Bl describes a light emitting device which ei ⁇ ne first and a second group of solid state light emitters which emit light having a dominant wavelength in Be ⁇ range from 430 nm to 480 nm or from 600 nm to 630 nm, and a first Group of luminophores emitting light with a dominant wavelength in the range of 555 nm to 585 nm. If power is fed into a power line, a combination of (1) light coming out of the
  • CIE Chromaticity Diagram CIE Chromaticity Diagram
  • a light emitting device for generating a white mixed light from semi-conductor light emitting elements with a particularly high eyes review ⁇ th provide efficiency.
  • This object is achieved according to the features of the independent claims. Preferred embodiments are in particular the dependent claims.
  • the object is achieved by a lighting device comprising at least one red light emitting diode, at least one blue light emitting diode and at least one phosphor for wavelength conversion of at least a portion of a light emitted by the blue light emitting diode, namely for generating a white mixed light.
  • the light emitting diode is configured to generate a white mixed light by a mixture of a red light emitted by at least one red light emitting diode, at least a portion of a blue light emitted by at least one blue light emitting diode and a light emitted by at least one phosphor at least one phosphor at least partially wavelength converts the blue light.
  • the mixed light generated by the at least one blue light emitting diode and the at least one phosphor has a chromaticity coordinate within a quadrangle within the CIE standard chromaticity diagram with Cx / Cy coordinates (0.160, 0.43, 0.18) , 6458), (0.3765, 0.5128) and (0.3134, 0.3871). That of the at least one blue light emitting diode and the mixed light and min ⁇ least produced a fluorescent light generated by the at least one red light emitting diode for a total of the white mixed light.
  • a white mixed light is he witnesses ⁇ which rated eyes has a high efficiency.
  • the lighting device comprises at least one phosphor-converted blue light-emitting diode which emits light with the color location within the quadrilateral with the Cx / Cy coordinates (0.160, 0.4514), (0.18; 0.3765;
  • the material-converted blue light-emitting diode is understood in particular to be a blue light-emitting diode, which is followed by a phosphor for an at least partial wavelength conversion or wavelength conversion of the light emitted by the blue light-emitting diode.
  • a phosphor for an at least partial wavelength conversion or wavelength conversion of the light emitted by the blue light-emitting diode.
  • the lighting device has at least one red light emitting diode and at least one fluorescent converted blue light emitting diode for generating a white mixed ⁇ light, the phosphor converted blue Leuchtdi ⁇ ode light with a color location within a quadrangle within the CIE standard color chart with the Cx / Cy coordinates (0.1609, 0.4314), (0.18, 0.6458), (0.3765, 0.5128), and (0.3134;
  • Lighting device as a so-called. "Remote phosphor" of the light emitting diode spaced apart.
  • Another embodiment is the quadrilateral Cx / Cy coordinates (0.2485, 0.41), (0.2993, 0.5635), (0.3765;
  • the phosphor (the phosphor-converted blue light-emitting diode and / or the 're ⁇ mote' phosphor) has a dominant wavelength at about 555 nm. This dominant wavelength is near the Maximum of an eye sensitivity curve and gives a particularly high eye-rated efficiency.
  • the luminescent substance of the phosphor-converted blue light-emitting diode has a dominant wavelength of less than 555 nm.
  • SrSi 2 0 2 N 2 : Eu 2+ includes.
  • the red light emitting diode having a dominant wavelength in a wavelength range Zvi ⁇ rule 600 nm and 640 nm.
  • the lighting device has at least one light mixing element for mixing the light emitted by the light emitting diodes.
  • the mixing element By the mixing element, a particularly homogeneous-acting light can be emitted without color shade.
  • the at least one light mixing element comprises a mixing optics. It is still a special embodiment that in the beam path between the LEDs and the mixing optics at least one light-emitting diode own primary optics and / or a common collimating secondary optics are arranged. As a result, a desired emission characteristic with high variability can be set or configured.
  • the lighting device has a full angle of the light emitted by the lighting device of at least 5 °, in particular of about 10 °.
  • the lighting device has at least about twice as many phosphor converted blue LEDs than red LEDs. This balanced color ⁇ intensity can be generated for the white mixed light in a simple manner.
  • Fig.l shows a sectional side view of a phosphor converted blue single light-emitting diode according to a first embodiment
  • Fig. 7 shows components of a lighting device 51 according to a fourth embodiment.
  • the LEDs 1, 11 and 22, 23 arranged in a light box 52 with a diffuse scatter ⁇ the white reflector 53.
  • the reflector 53 is preferably faceted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Led Device Packages (AREA)

Abstract

L'invention concerne un dispositif d'éclairage comprenant au moins une diode électroluminescente rouge (22), au moins une diode électroluminescente bleue (1; 11; 33) et au moins une substance fluorescente pour convertir la longueur d'ondes d'au moins une partie d'une lumière émise par la diode électroluminescente bleue (1; 11; 33) pour produire une lumière mixte blanche. Une lumière mixte produite par ladite diode électroluminescente bleue et ladite substance fluorescente présente une localisation chromatique à l'intérieur d'un rectangle dans le diagramme de chromaticité de la CIE avec les coordonnées Cx/Cy (0,1609; 0,4314), (0,18; 0,6458), (0,3765; 0,5128) et (0,3134; 0,3871).
PCT/EP2009/063395 2009-10-14 2009-10-14 Dispositif d'éclairage pour produire une lumière mixte blanche Ceased WO2011044931A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/063395 WO2011044931A1 (fr) 2009-10-14 2009-10-14 Dispositif d'éclairage pour produire une lumière mixte blanche

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/063395 WO2011044931A1 (fr) 2009-10-14 2009-10-14 Dispositif d'éclairage pour produire une lumière mixte blanche

Publications (1)

Publication Number Publication Date
WO2011044931A1 true WO2011044931A1 (fr) 2011-04-21

Family

ID=41682322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/063395 Ceased WO2011044931A1 (fr) 2009-10-14 2009-10-14 Dispositif d'éclairage pour produire une lumière mixte blanche

Country Status (1)

Country Link
WO (1) WO2011044931A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012205381A1 (de) 2012-04-02 2013-10-02 Osram Gmbh LED-Leuchtvorrichtung mit minzefarbenen und bernsteinfarbenen Leuchtdioden
DE102012205461A1 (de) 2012-04-03 2013-10-10 Osram Gmbh Led-chip mit temperaturabhängiger wellenlänge
DE102012205465A1 (de) 2012-04-03 2013-10-10 Osram Gmbh Leuchtvorrichtung
WO2014029773A1 (fr) * 2012-08-21 2014-02-27 Osram Opto Semiconductors Gmbh Ensemble de diodes électroluminescentes servant à générer une lumière blanche
EP3120693A1 (fr) * 2015-07-21 2017-01-25 OSRAM GmbH Dispositif d'eclairage, par exemple pour un eclairage de serre, et procede d'utilisation correspondant
CZ307197B6 (cs) * 2016-09-21 2018-03-14 Vysoká Škola Báňská - Technická Univerzita Ostrava Svítidlo se zdrojem budicího záření a luminiscenční vrstvou

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005030903A1 (fr) * 2003-09-24 2005-04-07 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Systeme d'eclairage hautement efficace a base de diodes electroluminescentes presentant un meilleur rendu des couleurs
US7005679B2 (en) * 2003-05-01 2006-02-28 Cree, Inc. Multiple component solid state white light
US20060145123A1 (en) * 2004-08-04 2006-07-06 Intematix Corporation Silicate-based green phosphors
US20070001188A1 (en) * 2004-09-10 2007-01-04 Kyeong-Cheol Lee Semiconductor device for emitting light and method for fabricating the same
US20080151143A1 (en) * 2006-10-19 2008-06-26 Intematix Corporation Light emitting diode based backlighting for color liquid crystal displays
US20090180273A1 (en) * 2005-09-30 2009-07-16 Seoul Semiconductor Co., Ltd. Light emitting device and lcd backlight using the same
US20090243504A1 (en) * 2008-03-31 2009-10-01 Seoul Semiconductor Co., Ltd. Backlight unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7005679B2 (en) * 2003-05-01 2006-02-28 Cree, Inc. Multiple component solid state white light
WO2005030903A1 (fr) * 2003-09-24 2005-04-07 Patent-Treuhand- Gesellschaft Für Elektrische Glühlampen Mbh Systeme d'eclairage hautement efficace a base de diodes electroluminescentes presentant un meilleur rendu des couleurs
US20060145123A1 (en) * 2004-08-04 2006-07-06 Intematix Corporation Silicate-based green phosphors
US20070001188A1 (en) * 2004-09-10 2007-01-04 Kyeong-Cheol Lee Semiconductor device for emitting light and method for fabricating the same
US20090180273A1 (en) * 2005-09-30 2009-07-16 Seoul Semiconductor Co., Ltd. Light emitting device and lcd backlight using the same
US20080151143A1 (en) * 2006-10-19 2008-06-26 Intematix Corporation Light emitting diode based backlighting for color liquid crystal displays
US20090243504A1 (en) * 2008-03-31 2009-10-01 Seoul Semiconductor Co., Ltd. Backlight unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012205381A1 (de) 2012-04-02 2013-10-02 Osram Gmbh LED-Leuchtvorrichtung mit minzefarbenen und bernsteinfarbenen Leuchtdioden
WO2013149890A1 (fr) 2012-04-02 2013-10-10 Osram Gmbh Dispositif d'éclairage à del comprenant des diodes électroluminescentes de couleur menthe et de couleur ambre
US9599294B2 (en) 2012-04-02 2017-03-21 Osram Gmbh LED lighting device with mint, amber and yellow colored light-emitting diodes
DE102012205461A1 (de) 2012-04-03 2013-10-10 Osram Gmbh Led-chip mit temperaturabhängiger wellenlänge
DE102012205465A1 (de) 2012-04-03 2013-10-10 Osram Gmbh Leuchtvorrichtung
WO2014029773A1 (fr) * 2012-08-21 2014-02-27 Osram Opto Semiconductors Gmbh Ensemble de diodes électroluminescentes servant à générer une lumière blanche
US9746141B2 (en) 2012-08-21 2017-08-29 Osram Opto Semiconductors Gmbh Light-emitting diode arrangement for generating white light
EP3120693A1 (fr) * 2015-07-21 2017-01-25 OSRAM GmbH Dispositif d'eclairage, par exemple pour un eclairage de serre, et procede d'utilisation correspondant
CN106369293A (zh) * 2015-07-21 2017-02-01 欧司朗股份有限公司 例如用于温室照明的照明装置以及相应的使用方法
US10321637B2 (en) 2015-07-21 2019-06-18 Osram Gmbh Lighting device, for instance for greenhouse lighting, and corresponding method of use
CZ307197B6 (cs) * 2016-09-21 2018-03-14 Vysoká Škola Báňská - Technická Univerzita Ostrava Svítidlo se zdrojem budicího záření a luminiscenční vrstvou

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