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EP1706665A4 - Illumination device for simulating neon or similar lighting using phosphorescent dye - Google Patents

Illumination device for simulating neon or similar lighting using phosphorescent dye

Info

Publication number
EP1706665A4
EP1706665A4 EP04815860A EP04815860A EP1706665A4 EP 1706665 A4 EP1706665 A4 EP 1706665A4 EP 04815860 A EP04815860 A EP 04815860A EP 04815860 A EP04815860 A EP 04815860A EP 1706665 A4 EP1706665 A4 EP 1706665A4
Authority
EP
European Patent Office
Prior art keywords
light
hue
light source
phosphorescent dye
illumination device
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.)
Withdrawn
Application number
EP04815860A
Other languages
German (de)
French (fr)
Other versions
EP1706665A2 (en
Inventor
George R Hulse
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.)
Ilight Technologies Inc
Original Assignee
Ilight Technologies Inc
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 Ilight Technologies Inc filed Critical Ilight Technologies Inc
Publication of EP1706665A2 publication Critical patent/EP1706665A2/en
Publication of EP1706665A4 publication Critical patent/EP1706665A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/38—Combination of two or more photoluminescent elements of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

An illumination device simulates neon lighting using a light source (12) for emitting light of a predetermined first hue and a light-transmitting medium (14) having a predetermined density of phosphorescent dye positioned adjacent to the light source. The phosphorescent dye will absorb light emitted by the light source and emit light of a second hue. An observer of the device perceives light that is of a hue that is different from the predetermined first hue. A means for varying the intensity (18) of the light emitted by the light source creates color changing effects in the illumination device. Light-emitting diodes (LEDs) are a suitable light source. A waveguide (16) having both optical waveguide and light scattering properties is used to diffuse the combined light and simulate the uniform appearance of a neon tube. Alternatively, the waveguide itself can be doped with phosphorescent dye to emit light having the perceived hue.
EP04815860A 2003-12-31 2004-12-29 Illumination device for simulating neon or similar lighting using phosphorescent dye Withdrawn EP1706665A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53358103P 2003-12-31 2003-12-31
PCT/US2004/043867 WO2005065356A2 (en) 2003-12-31 2004-12-29 Illumination device for simulating neon using phosphorescent dye

Publications (2)

Publication Number Publication Date
EP1706665A2 EP1706665A2 (en) 2006-10-04
EP1706665A4 true EP1706665A4 (en) 2007-03-21

Family

ID=34748920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04815860A Withdrawn EP1706665A4 (en) 2003-12-31 2004-12-29 Illumination device for simulating neon or similar lighting using phosphorescent dye

Country Status (3)

Country Link
EP (1) EP1706665A4 (en)
CN (1) CN1902434A (en)
WO (1) WO2005065356A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7914197B2 (en) 2005-12-27 2011-03-29 Showa Denko K.K. Light guide member, flat light source device, and display device
EP2048437A4 (en) * 2006-07-28 2013-07-17 Fujifilm Corp Surface area illumination device
ES2379129T3 (en) * 2007-06-04 2012-04-23 Koninklijke Philips Electronics N.V. Lighting system with color adjustment, lamp and luminaire
US7618157B1 (en) * 2008-06-25 2009-11-17 Osram Sylvania Inc. Tubular blue LED lamp with remote phosphor
CN105765298B (en) * 2013-07-15 2019-07-16 L·E·S·S·有限责任公司 Coherent light waveguide illumination system with speckle noise damper

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560117A (en) * 1947-01-31 1951-07-10 Robert W Mallary Sign
DE828629C (en) * 1949-04-28 1952-01-21 Dr Alexander Ringleb Illuminated sign
US5810463A (en) * 1994-11-28 1998-09-22 Nikon Corporation Illumination device
EP0982924A2 (en) * 1998-08-25 2000-03-01 Hewlett-Packard Company Light source assembly for scanning devices
US20020043938A1 (en) * 2000-08-07 2002-04-18 Lys Ihor A. Automatic configuration systems and methods for lighting and other applications
WO2002070948A1 (en) * 2001-03-01 2002-09-12 Wavelight Laser Technologie Ag Device for producing a white light
US20030085642A1 (en) * 2001-07-20 2003-05-08 Pelka David G. Fluorescent light source

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6412971B1 (en) * 1998-01-02 2002-07-02 General Electric Company Light source including an array of light emitting semiconductor devices and control method
US6350041B1 (en) * 1999-12-03 2002-02-26 Cree Lighting Company High output radial dispersing lamp using a solid state light source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560117A (en) * 1947-01-31 1951-07-10 Robert W Mallary Sign
DE828629C (en) * 1949-04-28 1952-01-21 Dr Alexander Ringleb Illuminated sign
US5810463A (en) * 1994-11-28 1998-09-22 Nikon Corporation Illumination device
EP0982924A2 (en) * 1998-08-25 2000-03-01 Hewlett-Packard Company Light source assembly for scanning devices
US20020043938A1 (en) * 2000-08-07 2002-04-18 Lys Ihor A. Automatic configuration systems and methods for lighting and other applications
WO2002070948A1 (en) * 2001-03-01 2002-09-12 Wavelight Laser Technologie Ag Device for producing a white light
US20030085642A1 (en) * 2001-07-20 2003-05-08 Pelka David G. Fluorescent light source

Also Published As

Publication number Publication date
EP1706665A2 (en) 2006-10-04
WO2005065356A3 (en) 2006-01-05
WO2005065356A2 (en) 2005-07-21
CN1902434A (en) 2007-01-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060731

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

A4 Supplementary search report drawn up and despatched

Effective date: 20070220

RIC1 Information provided on ipc code assigned before grant

Ipc: G02B 6/00 20060101ALI20070214BHEP

Ipc: F21K 7/00 20060101AFI20070214BHEP

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20071026

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20110608