DE69832508D1 - Eine durch extrinsische differential geometrie entworfene beleuchtung - Google Patents

Eine durch extrinsische differential geometrie entworfene beleuchtung

Info

Publication number
DE69832508D1
DE69832508D1 DE69832508T DE69832508T DE69832508D1 DE 69832508 D1 DE69832508 D1 DE 69832508D1 DE 69832508 T DE69832508 T DE 69832508T DE 69832508 T DE69832508 T DE 69832508T DE 69832508 D1 DE69832508 D1 DE 69832508D1
Authority
DE
Germany
Prior art keywords
extrinsical
differential geometry
lighting designed
lighting
designed
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.)
Expired - Lifetime
Application number
DE69832508T
Other languages
English (en)
Other versions
DE69832508T2 (de
Inventor
A Parkyn
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.)
Teledyne Lighting and Display Products Inc
Original Assignee
Teledyne Lighting and Display Products 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 Teledyne Lighting and Display Products Inc filed Critical Teledyne Lighting and Display Products Inc
Publication of DE69832508D1 publication Critical patent/DE69832508D1/de
Application granted granted Critical
Publication of DE69832508T2 publication Critical patent/DE69832508T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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]
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/80—Light emitting diode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
DE69832508T 1997-09-23 1998-09-18 Eine durch extrinsische differential geometrie entworfene beleuchtung Expired - Lifetime DE69832508T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US935774 1997-09-23
US08/935,774 US5924788A (en) 1997-09-23 1997-09-23 Illuminating lens designed by extrinsic differential geometry
PCT/US1998/019608 WO1999015826A1 (en) 1997-09-23 1998-09-18 Illuminating lens designed by extrinsic differential geometry

Publications (2)

Publication Number Publication Date
DE69832508D1 true DE69832508D1 (de) 2005-12-29
DE69832508T2 DE69832508T2 (de) 2006-07-06

Family

ID=25467644

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69832508T Expired - Lifetime DE69832508T2 (de) 1997-09-23 1998-09-18 Eine durch extrinsische differential geometrie entworfene beleuchtung

Country Status (6)

Country Link
US (1) US5924788A (de)
EP (1) EP1015808B1 (de)
JP (1) JP4183907B2 (de)
CA (1) CA2303007C (de)
DE (1) DE69832508T2 (de)
WO (1) WO1999015826A1 (de)

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6273596B1 (en) * 1997-09-23 2001-08-14 Teledyne Lighting And Display Products, Inc. Illuminating lens designed by extrinsic differential geometry
US6602274B1 (en) * 1999-01-15 2003-08-05 Light Sciences Corporation Targeted transcutaneous cancer therapy
JP2001135102A (ja) * 1999-11-05 2001-05-18 Zeni Lite Buoy Co Ltd Ｌｅｄ式灯具
DE60125732T2 (de) 2000-03-06 2007-10-25 Teledyne Lighting and Display Products, Inc., Hawthorne Led-lichtquelle mit optischem sichtfeldsteuerungssystem
AU2001252894A1 (en) 2000-03-06 2001-09-17 Teledyne Lighting And Display Products, Inc. Lighting apparatus having quantum dot layer
US6637924B2 (en) 2000-11-15 2003-10-28 Teledyne Lighting And Display Products, Inc. Strip lighting apparatus and method
US6784603B2 (en) * 2001-07-20 2004-08-31 Teledyne Lighting And Display Products, Inc. Fluorescent lighting apparatus
US6566824B2 (en) 2001-10-16 2003-05-20 Teledyne Lighting And Display Products, Inc. Flexible lighting segment
JP4118742B2 (ja) * 2002-07-17 2008-07-16 シャープ株式会社 発光ダイオードランプおよび発光ダイオード表示装置
US7021801B2 (en) * 2002-09-19 2006-04-04 Everbrite, Llc High-intensity directional light
US6896381B2 (en) * 2002-10-11 2005-05-24 Light Prescriptions Innovators, Llc Compact folded-optics illumination lens
US6924943B2 (en) * 2002-12-02 2005-08-02 Light Prescriptions Innovators, Llc Asymmetric TIR lenses producing off-axis beams
US7042655B2 (en) * 2002-12-02 2006-05-09 Light Prescriptions Innovators, Llc Apparatus and method for use in fulfilling illumination prescription
US7377671B2 (en) 2003-02-04 2008-05-27 Light Prescriptions Innovators, Llc Etendue-squeezing illumination optics
US7329029B2 (en) * 2003-05-13 2008-02-12 Light Prescriptions Innovators, Llc Optical device for LED-based lamp
US8075147B2 (en) * 2003-05-13 2011-12-13 Light Prescriptions Innovators, Llc Optical device for LED-based lamp
US7021797B2 (en) 2003-05-13 2006-04-04 Light Prescriptions Innovators, Llc Optical device for repositioning and redistributing an LED's light
EP1664851B1 (de) * 2003-07-28 2014-11-12 Light Prescriptions Innovators, LLC. Dreidimensionales gleichzeitiges mehrfachoberflächen-verfahren und daraus entwickelte freiform-beleuchtungsoptik
EP1660918B1 (de) * 2003-07-29 2017-03-15 Light Engine Limited Umfänglich emittierende leuchtvorrichtungen und durch transversalachsen-profil-sweeps gebildete linsenelemente
US20050030759A1 (en) * 2003-08-04 2005-02-10 Guide Corporation Bifocal hyperbolic catadioptric collection system for an automotive lamp
US7679096B1 (en) 2003-08-21 2010-03-16 Opto Technology, Inc. Integrated LED heat sink
US7652300B2 (en) * 2004-02-26 2010-01-26 Koninklijke Philips Electronics, N.V. Apparatus for forming an asymmetric illumination beam pattern
KR101080355B1 (ko) 2004-10-18 2011-11-04 삼성전자주식회사 발광다이오드와 그 렌즈
US7618162B1 (en) * 2004-11-12 2009-11-17 Inteled Corp. Irradiance-redistribution lens and its applications to LED downlights
US7540629B2 (en) * 2004-12-28 2009-06-02 General Electric Company Modular fixture and sports lighting system
US8631787B2 (en) * 2005-07-28 2014-01-21 Light Prescriptions Innovators, Llc Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
KR20080036213A (ko) * 2005-07-28 2008-04-25 라이트 프리스크립션즈 이노베이터즈, 엘엘씨 에턴듀가 보존되는 백라이트 및 프론트라이트용 조명광학계
WO2007016363A2 (en) * 2005-07-28 2007-02-08 Light Prescriptions Innovators, Llc Free-form lenticular optical elements and their application to condensers and headlamps
US8434912B2 (en) * 2006-02-27 2013-05-07 Illumination Management Solutions, Inc. LED device for wide beam generation
US7674018B2 (en) * 2006-02-27 2010-03-09 Illumination Management Solutions Inc. LED device for wide beam generation
US7513665B2 (en) * 2006-05-16 2009-04-07 Visteon Global Technologies, Inc. Headlamp module and headlamp assembly with internally reflecting translucent member
DE102006050880A1 (de) 2006-06-30 2008-04-17 Osram Opto Semiconductors Gmbh Optoelektronisches Bauteil und Beleuchtungseinrichtung
TWI342444B (en) * 2006-07-04 2011-05-21 Au Optronics Corp Light-emitting unit and backlight module
WO2008008994A2 (en) * 2006-07-14 2008-01-17 Light Prescriptions Innovators, Llc Brightness-enhancing film
EP2057409A2 (de) * 2006-08-10 2009-05-13 Light Prescriptions Innovators, LLC. Rezyklierung von led-licht für helligkeitsverstärkung und winkelverengung
WO2008022065A2 (en) * 2006-08-11 2008-02-21 Light Prescriptions Innovators, Llc Led luminance-enhancement and color-mixing by rotationally multiplexed beam-combining
KR101266490B1 (ko) * 2006-09-08 2013-05-23 삼성디스플레이 주식회사 백라이트 어셈블리 및 이를 포함하는 액정 표시 장치
DE102006047233A1 (de) * 2006-10-04 2008-04-10 Osram Opto Semiconductors Gmbh Optisches Element für eine Leuchtdiode, Leuchtdiode, LED-Anordnung und Verfahren zur Herstellung einer LED-Anordnung
JP5349453B2 (ja) * 2007-04-05 2013-11-20 コーニンクレッカ フィリップス エヌ ヴェ 光ビーム整形器
CN101687473B (zh) * 2007-05-21 2014-12-03 照明管理解决方案有限公司 改进的用于生成宽束的led装置以及制造该装置的方法
US7837349B2 (en) * 2007-06-15 2010-11-23 Visteon Global Technologies, Inc. Near field lens
TWI385819B (zh) * 2007-07-06 2013-02-11 Advanced Optoelectronic Tech 使用發光二極體元件之照明系統及其發光二極體元件
US7674019B2 (en) * 2007-08-11 2010-03-09 Anthony, Inc. Free-form lenses for rectangular illumination zones
US9666762B2 (en) * 2007-10-31 2017-05-30 Cree, Inc. Multi-chip light emitter packages and related methods
DE102008006229B4 (de) * 2008-01-25 2013-08-29 We-Ef Leuchten Gmbh & Co. Kg Straßenbeleuchtungseinrichtung
EP2245364A2 (de) * 2008-02-21 2010-11-03 Light Prescriptions Innovators, LLC. Sphärisch emittierender remote phosphor
US9557033B2 (en) * 2008-03-05 2017-01-31 Cree, Inc. Optical system for batwing distribution
US7972036B1 (en) 2008-04-30 2011-07-05 Genlyte Thomas Group Llc Modular bollard luminaire louver
US7985004B1 (en) 2008-04-30 2011-07-26 Genlyte Thomas Group Llc Luminaire
US8348475B2 (en) * 2008-05-23 2013-01-08 Ruud Lighting, Inc. Lens with controlled backlight management
US8388193B2 (en) * 2008-05-23 2013-03-05 Ruud Lighting, Inc. Lens with TIR for off-axial light distribution
CA2725299A1 (en) * 2008-05-23 2009-11-26 Ruud Lighting, Inc. Recessed led lighting fixture
US8002435B2 (en) * 2008-06-13 2011-08-23 Philips Electronics Ltd Philips Electronique Ltee Orientable lens for an LED fixture
US7766509B1 (en) 2008-06-13 2010-08-03 Lumec Inc. Orientable lens for an LED fixture
US7841750B2 (en) 2008-08-01 2010-11-30 Ruud Lighting, Inc. Light-directing lensing member with improved angled light distribution
EP2326870B1 (de) 2008-08-14 2017-01-25 Cooper Technologies Company Led-vorrichtungen für versetzte breitstrahlerzeugung
US7934851B1 (en) 2008-08-19 2011-05-03 Koninklijke Philips Electronics N.V. Vertical luminaire
US8215814B2 (en) * 2008-11-21 2012-07-10 Dbm Reflex Enterprises Inc. Solid state optical illumination apparatus
MX2011005753A (es) * 2008-12-03 2011-11-18 Illumination Man Solutions Inc Una lámpara led de repuesto y un método de sustitución de luminarias preexistentes con ensamble de luminaria led.
US8070328B1 (en) 2009-01-13 2011-12-06 Koninkliljke Philips Electronics N.V. LED downlight
US8246212B2 (en) * 2009-01-30 2012-08-21 Koninklijke Philips Electronics N.V. LED optical assembly
US9255686B2 (en) 2009-05-29 2016-02-09 Cree, Inc. Multi-lens LED-array optic system
EP2486605B1 (de) 2009-10-08 2017-09-13 Philips Lighting Holding B.V. Linse für asymmetrische lichtstrahlerzeugung
WO2011066421A2 (en) 2009-11-25 2011-06-03 Cooper Technologies Company Systems, methods, and devices for sealing led light sources in a light module
US8330342B2 (en) * 2009-12-21 2012-12-11 Malek Bhairi Spherical light output LED lens and heat sink stem system
US8070326B2 (en) * 2010-01-07 2011-12-06 Osram Sylvania Inc. Free-form lens design to apodize illuminance distribution
CN102193193B (zh) * 2010-03-11 2015-01-14 上海三思电子工程有限公司 一种具有圆形均匀照射光斑的透镜设计方法
US8388198B2 (en) 2010-09-01 2013-03-05 Illumination Management Solutions, Inc. Device and apparatus for efficient collection and re-direction of emitted radiation
JP2012145904A (ja) * 2010-12-22 2012-08-02 Panasonic Corp 光学レンズ及びそれを用いたレンズユニット並びに照明器具
TWI474049B (zh) 2010-12-29 2015-02-21 Ind Tech Res Inst 光學透鏡、光學透鏡模組及光學透鏡的曲面形成方法
CN102644899B (zh) * 2011-02-18 2013-07-31 上海三思电子工程有限公司 一种led照明用透镜的设计方法
WO2012118828A2 (en) 2011-02-28 2012-09-07 Cooper Technologies Company Method and system for managing light from a light emitting diode
US9140430B2 (en) 2011-02-28 2015-09-22 Cooper Technologies Company Method and system for managing light from a light emitting diode
USD657087S1 (en) 2011-05-13 2012-04-03 Lsi Industries, Inc. Lighting
US8585238B2 (en) 2011-05-13 2013-11-19 Lsi Industries, Inc. Dual zone lighting apparatus
WO2012176117A1 (en) * 2011-06-24 2012-12-27 Koninklijke Philips Electronics N.V. Led-based lighting unit with optical component for mixing light output from a plurality of leds
CN103175021B (zh) * 2011-12-23 2016-06-22 海洋王照明科技股份有限公司 一种跑道入口翼排灯
TWI456266B (zh) * 2012-02-22 2014-10-11 嵐雅光學股份有限公司 非成像透鏡及具有該透鏡之發光模組
US10408429B2 (en) 2012-02-29 2019-09-10 Ideal Industries Lighting Llc Lens for preferential-side distribution
US9541257B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for primarily-elongate light distribution
US9541258B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for wide lateral-angle distribution
USD697664S1 (en) 2012-05-07 2014-01-14 Cree, Inc. LED lens
US8974077B2 (en) 2012-07-30 2015-03-10 Ultravision Technologies, Llc Heat sink for LED light source
US9080739B1 (en) 2012-09-14 2015-07-14 Cooper Technologies Company System for producing a slender illumination pattern from a light emitting diode
US9200765B1 (en) 2012-11-20 2015-12-01 Cooper Technologies Company Method and system for redirecting light emitted from a light emitting diode
USD718490S1 (en) 2013-03-15 2014-11-25 Cree, Inc. LED lens
US9523479B2 (en) 2014-01-03 2016-12-20 Cree, Inc. LED lens
US20150316219A1 (en) * 2014-05-01 2015-11-05 CoreLed Systems, LLC High-pass filter for led lighting
CN104501091B (zh) * 2014-12-26 2018-01-16 成都恒坤光电科技有限公司 一种照度呈高斯分布的led二次配光透镜设计方法
DE102015202545B4 (de) * 2015-02-12 2023-03-23 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugleuchte mit Licht brechendem Element zwischen Leuchtmittel und paraboloidförmigen Reflektor
CN104696884B (zh) * 2015-02-15 2017-10-20 广东省半导体产业技术研究院 一种双自由曲面的led准直透镜设计方法
US10468566B2 (en) 2017-04-10 2019-11-05 Ideal Industries Lighting Llc Hybrid lens for controlled light distribution
CN107544140B (zh) * 2017-10-13 2019-11-15 上海交通大学 基于基因算法的自由曲面透镜设计方法
CN107833530A (zh) * 2017-12-05 2018-03-23 陈剑 Led球形显示屏的设计方法及led球形显示屏
US11500197B2 (en) 2018-05-11 2022-11-15 Arizona Board Of Regents On Behalf Of The University Of Arizona Efficient optical system design and components
CN113761459B (zh) * 2021-08-20 2022-09-27 杭州罗莱迪思科技股份有限公司 基于曲率分配的双曲面透镜计算方法及其应用

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362176A (en) * 1943-03-25 1944-11-07 Swanson Harold Flashlight full-beam electric lamp
US2647202A (en) * 1950-03-24 1953-07-28 William B Elmer Luminaire for street lighting
US2703398A (en) * 1953-11-16 1955-03-01 Marco Ind Company Multiple lamp block indicator
US2921181A (en) * 1957-10-24 1960-01-12 William B Elmer Street lighting luminaire
US3210536A (en) * 1962-05-28 1965-10-05 William B Elmer Luminaire and means for lighting streets
US3331960A (en) * 1964-11-27 1967-07-18 Sylvania Electric Prod Portable photogrpahic light
US3390262A (en) * 1965-05-24 1968-06-25 Sylvania Electric Prod Multizone high power light reflector
US3398272A (en) * 1965-12-03 1968-08-20 William B. Elmer Isoradiant energy reflecting
US3423584A (en) * 1966-03-23 1969-01-21 Varian Associates Spectrometer ion source having two filaments each alternately acting as emitter and collector
US3494693A (en) * 1966-06-28 1970-02-10 William B Elmer Radiant energy projection
US3471231A (en) * 1967-06-07 1969-10-07 Dennison Mfg Co Optical illuminating apparatus
US3428397A (en) * 1967-12-28 1969-02-18 Dennison Mfg Co Illumination in optical imaging apparatus
US3526459A (en) * 1968-05-20 1970-09-01 Dennison Mfg Co Optical illuminating system
JPS48102585A (de) * 1972-04-04 1973-12-22
US4367519A (en) * 1980-05-15 1983-01-04 Science Applications, Inc. Vessel navigation lights
JPS6282314A (ja) * 1985-10-08 1987-04-15 Hitachi Ltd 光度差ステレオ計測方式
US5140220A (en) * 1985-12-02 1992-08-18 Yumi Sakai Light diffusion type light emitting diode
US4698730A (en) * 1986-08-01 1987-10-06 Stanley Electric Co., Ltd. Light-emitting diode
JPH01197141A (ja) * 1988-02-02 1989-08-08 Stanley Electric Co Ltd 自動車用リアコンビネーションランプ
US4941072A (en) * 1988-04-08 1990-07-10 Sanyo Electric Co., Ltd. Linear light source
DE3827083A1 (de) * 1988-08-10 1990-02-15 Telefunken Electronic Gmbh Flaechenhafter strahler
GB9108063D0 (en) * 1991-04-16 1991-06-05 Toh Peng S Techniques for lighting optimisation
CA2078839A1 (en) * 1991-09-25 1993-03-26 Marc Hoffman Double refraction and total reflection solid nonimaging lens
DE19531295A1 (de) * 1995-08-25 1997-02-27 Reitter & Schefenacker Gmbh Optikkörper für mindestens eine LED

Also Published As

Publication number Publication date
US5924788A (en) 1999-07-20
EP1015808A4 (de) 2003-01-29
EP1015808B1 (de) 2005-11-23
CA2303007C (en) 2007-05-29
CA2303007A1 (en) 1999-04-01
JP4183907B2 (ja) 2008-11-19
DE69832508T2 (de) 2006-07-06
EP1015808A1 (de) 2000-07-05
WO1999015826A1 (en) 1999-04-01
JP2001517855A (ja) 2001-10-09

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