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GB201311284D0 - High colour quality luminaire - Google Patents

High colour quality luminaire

Info

Publication number
GB201311284D0
GB201311284D0 GBGB1311284.2A GB201311284A GB201311284D0 GB 201311284 D0 GB201311284 D0 GB 201311284D0 GB 201311284 A GB201311284 A GB 201311284A GB 201311284 D0 GB201311284 D0 GB 201311284D0
Authority
GB
United Kingdom
Prior art keywords
light
emitters
wavelengths
converters
colour
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1311284.2A
Other versions
GB2500837B (en
GB2500837A (en
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.)
Photonstar Led Ltd
Original Assignee
Photonstar Led Ltd
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 Photonstar Led Ltd filed Critical Photonstar Led Ltd
Priority to GB1311284.2A priority Critical patent/GB2500837B/en
Priority claimed from GB0907101.0A external-priority patent/GB2469794B/en
Publication of GB201311284D0 publication Critical patent/GB201311284D0/en
Publication of GB2500837A publication Critical patent/GB2500837A/en
Application granted granted Critical
Publication of GB2500837B publication Critical patent/GB2500837B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K99/00—Subject matter not provided for in other groups of this subclass
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)
  • Led Devices (AREA)

Abstract

A colour tunable lighting module comprises three light emitting packages, including at least three solid state lighting emitters 300-302 and at least two wavelength converting elements 304 & 305. The light emitters are formed of the same semiconductor material system and light generated by them has dominant wavelengths in the blue-green-orange range of the optical spectrum. The two wavelengths converters 304 & 305 are used re-emit some of the light from two of the emitters in broader spectra having longer dominant wavelengths, while the third emitter emits light at a wavelength between the dominant wavelengths of the light from the two emitters and converters. Correlated colour temperatures are preselected with chromaticity tolerances greater than a minimum 4 step MacAdam ellipse and the efficiency and colour rendering index of the module is greater than or equal to that of the two light emitting packages including wavelengths converters
GB1311284.2A 2009-04-24 2009-04-24 High colour quality luminaire Expired - Fee Related GB2500837B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1311284.2A GB2500837B (en) 2009-04-24 2009-04-24 High colour quality luminaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1311284.2A GB2500837B (en) 2009-04-24 2009-04-24 High colour quality luminaire
GB0907101.0A GB2469794B (en) 2009-04-24 2009-04-24 High colour quality luminaire

Publications (3)

Publication Number Publication Date
GB201311284D0 true GB201311284D0 (en) 2013-08-14
GB2500837A GB2500837A (en) 2013-10-02
GB2500837B GB2500837B (en) 2014-05-07

Family

ID=48998926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1311284.2A Expired - Fee Related GB2500837B (en) 2009-04-24 2009-04-24 High colour quality luminaire

Country Status (1)

Country Link
GB (1) GB2500837B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101396588B1 (en) * 2007-03-19 2014-05-20 서울반도체 주식회사 Light emitting apparatus having various color temperature
KR101722265B1 (en) * 2007-10-10 2017-03-31 크리, 인코포레이티드 Lighting device and method of making
US9012937B2 (en) * 2007-10-10 2015-04-21 Cree, Inc. Multiple conversion material light emitting diode package and method of fabricating same

Also Published As

Publication number Publication date
GB2500837B (en) 2014-05-07
GB2500837A (en) 2013-10-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190424