WO2007005456A3 - Illumination system with a condensing sphere - Google Patents

Illumination system with a condensing sphere Download PDF

Info

Publication number
WO2007005456A3
WO2007005456A3 PCT/US2006/025145 US2006025145W WO2007005456A3 WO 2007005456 A3 WO2007005456 A3 WO 2007005456A3 US 2006025145 W US2006025145 W US 2006025145W WO 2007005456 A3 WO2007005456 A3 WO 2007005456A3
Authority
WO
WIPO (PCT)
Prior art keywords
surface portion
light
illumination
back surface
reflecting
Prior art date
Application number
PCT/US2006/025145
Other languages
French (fr)
Other versions
WO2007005456A2 (en
Inventor
Wanli Chi
Nicholas George
Original Assignee
Univ Rochester
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 Univ Rochester filed Critical Univ Rochester
Publication of WO2007005456A2 publication Critical patent/WO2007005456A2/en
Publication of WO2007005456A3 publication Critical patent/WO2007005456A3/en

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
    • 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
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
    • H01L2933/0091—Scattering means in or on the semiconductor body or semiconductor body package
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor 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
    • H01L33/48—Semiconductor 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
    • H01L33/52—Encapsulations
    • H01L33/54—Encapsulations having a particular shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

A highly efficient LED based illumination device includes an optically transparent, dielectric, light condensing enclosure having a generally spherical illumination light reflecting/light refracting surface portion having an index of refraction and a designated back surface portion having an index of refraction and a designated back surface portion, wherein a region of the light reflecting/light refracting surface portion is a reflecting illumination light exit portion. The device includes at least one LED illumination source disposed adjacent the back surface portion, wherein the light emitted from the at least one LED illumination source is at least totally internally reflected, and refracted out of the enclosure having a controlled angular spread illumination pattern.
PCT/US2006/025145 2005-06-30 2006-06-28 Illumination system with a condensing sphere WO2007005456A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69534005P 2005-06-30 2005-06-30
US60/695,340 2005-06-30

Publications (2)

Publication Number Publication Date
WO2007005456A2 WO2007005456A2 (en) 2007-01-11
WO2007005456A3 true WO2007005456A3 (en) 2007-06-14

Family

ID=37604980

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/025145 WO2007005456A2 (en) 2005-06-30 2006-06-28 Illumination system with a condensing sphere

Country Status (1)

Country Link
WO (1) WO2007005456A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466787A (en) * 2009-01-05 2010-07-14 Greengage Lighting Ltd A light emitting diode lamp with reflective optical diffuser
JP2017112321A (en) 2015-12-18 2017-06-22 ソニー株式会社 Light emitting unit and display device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356700B1 (en) * 1998-06-08 2002-03-12 Karlheinz Strobl Efficient light engine systems, components and methods of manufacture
US6647199B1 (en) * 1996-12-12 2003-11-11 Teledyne Lighting And Display Products, Inc. Lighting apparatus having low profile
US20040145913A1 (en) * 2003-01-27 2004-07-29 3M Innovative Properties Company Phosphor based light sources having a polymeric long pass reflector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6647199B1 (en) * 1996-12-12 2003-11-11 Teledyne Lighting And Display Products, Inc. Lighting apparatus having low profile
US6356700B1 (en) * 1998-06-08 2002-03-12 Karlheinz Strobl Efficient light engine systems, components and methods of manufacture
US20040145913A1 (en) * 2003-01-27 2004-07-29 3M Innovative Properties Company Phosphor based light sources having a polymeric long pass reflector

Also Published As

Publication number Publication date
WO2007005456A2 (en) 2007-01-11

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