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WO2010057311A1 - Appareil d’illumination optique transistorisé - Google Patents

Appareil d’illumination optique transistorisé Download PDF

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Publication number
WO2010057311A1
WO2010057311A1 PCT/CA2009/001684 CA2009001684W WO2010057311A1 WO 2010057311 A1 WO2010057311 A1 WO 2010057311A1 CA 2009001684 W CA2009001684 W CA 2009001684W WO 2010057311 A1 WO2010057311 A1 WO 2010057311A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
optical
led
illumination
axis
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/CA2009/001684
Other languages
English (en)
Inventor
Eric Marcoux
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.)
DBM Reflex Enterprises Inc
Original Assignee
DBM Reflex Enterprises 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 DBM Reflex Enterprises Inc filed Critical DBM Reflex Enterprises Inc
Priority to DE112009003638.4T priority Critical patent/DE112009003638B4/de
Publication of WO2010057311A1 publication Critical patent/WO2010057311A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like
    • 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]

Definitions

  • the present invention relates to an illumination apparatus including a solid state light source and a lens to provide uniform illumination at a remote target. More particularly, the present invention relates to an illumination apparatus including a solid state illumination source and a lens that generates multiple angled beams of a certain shape and energy distribution towards a remote and large target.
  • Solid state illumination sources and optical systems have been extensively used in many applications, such as in bar code readers, optical communication systems, flat image displays, CD and DVD players.
  • US Patent '381 to Benitez teaches an open optical cavity facing the LED and in the proximity of the LED, this cavity having an axis of revolution and a circular cross section in a plane perpendicular to the incoming light beam from the LED.
  • the optical cavity has a spherical refractive surface that accepts the incoming beam from the LED.
  • LED based illumination systems produced by companies such as Led Prescriptions Innovators (LPI) 1 Illumination Management Solutions (such as LED UghtBARS TM) , Sekoni ⁇ , Joliet, Led-Spot Ledil (such as Flare lens TM and Snow White lens TM).
  • LPI Led Prescriptions Innovators
  • LED UghtBARS TM LED UghtBARS TM
  • Sekoni ⁇ Sekoni ⁇
  • Joliet Led-Spot Ledil
  • Flare lens TM and Snow White lens TM such as Flare lens TM and Snow White lens TM.
  • the lenses used in conjunction with solid state light sources have a circular perimeter having an axis of reference going through the LED die.
  • Such a circular perimeter lenses are used in street illumination, such as in Figs. 21-26 of US 20070201225 to Holder.
  • Figs. 21- 25 of Holder '225 show a composite lens having several sub-lenses, each having a "blob" or a dome shaped lens portions. This portion can be seen as a sub-lenses that generate several illumination beams upon a target, such as a street.
  • WO 2008122941 to Montagne shows a two lobs LED tens for street illumination where each lob has a circular parameter
  • US Patent 7,390,117 to Leatherdale teaches several designs where the LED lens has a single body that has a polygonal perimeter, these lenses being made of two optical materials for use in lateral illumination.
  • the present application teaches an improved solid state illumination system for a variety of applications such as public roads, large billboards, parking areas, gas stations, street signs or sport arenas (tennis courts, hockey rinks, etc.) that require constant or uniform illumination over the entire surface with some restrictions to contain the illumination pattern.
  • applications such as public roads, billboards and sport arenas the illumination beam has to be limited to a direction or several directions and prevent the illumination over other directions with respect to the illumination source.
  • the output beams form an angle with respect to an axis that is perpendicular to the LED die.
  • the energy level and the desired shape at the target is achieved by using an array of LED lenses and an array of complex shaped lenses, where the tenses has an identical shape and output beams.
  • the number of lenses and the number of LEDs are not the same, i.e. several lenses are used in conjunction with a single LED, or several LEDs are used in conjunction with a single lens.
  • the illumination lens does not have an axis of revolution.
  • the lens has an external polygonal shape in planes perpendicular to an axis that is perpendicular to the LED die.
  • the lens may have any number of external surfaces each having an optical function and a main direction of illumination towards a target.
  • the complex shape lens has an inner optical cavity in the proximity of the LED die making no contact with the LED.
  • This inner optical cavity is partially open towards the LED die to allow the incoming beam or light rays from the LED die to travel without any bending towards the refractive optical surfaces of the cavity.
  • the lens may have one or several air gaps between sub-lens elements that form the lens.
  • the lens has a number of optical surfaces providing total internal reflection (TIR)
  • the refractive and the reflective surfaces of the lens can be continuous, can be flat (i.e. no optical power), can be cylindrical, spherical or aspherical.
  • these optica! refractive and reflective surfaces can be further multi-facetted or micro-structured to further alter the energy and/or spatial distribution of the beams.
  • these optical refractive and reflective surfaces have no mirror coatings.
  • the LED and the lens generate a number of out coming illumination beams only from one side of a plane to prevent the illumination of an area proximate to the desired illumination target.
  • the LED and lens illumination system is used for a novel street illumination apparatus that provides reduced energy consumption and improved illumination uniformity at the street level.
  • the LED and lens illumination system is used for a novel (indoor or outdoor) billboard illumination apparatus that provides reduced energy consumption and improved illumination uniformity at the billboard level without affecting adjacent areas that have to be protected from the illumination.
  • Figs. 2 (a-b-c-d) show embodiments of the lens and the illumination pattern as disclosed in the current invention.
  • Figs. 3 (a-b-c-d-e) show other views of the embodiments shown in Fig. 2 of the current invention.
  • Fig ⁇ .4 (a-b-c-d-e-f-g-h) show ray tracings through the embodiments of Figs. 3.
  • Figs. 5 (a-b) show the illumination pattern at the target achieved by the lenses shown in Figs- 6 (a-b) show the division of light in two quadrants and the illuminated and non illuminated areas.
  • Fig. 7. Shows sections of the illumination area according to the invention.
  • Fig. 8. Shows sections of the illumination area according to the invention.
  • Figs.9 (a-b-c-d-e-f) show another embodiment of the invention.
  • Fig, 10 Shows another embodiment of the invention.
  • Figs. 11 (a-o) show various 2D and 3D schematic views of an embodiment of the invention-
  • Fig. 12 shows an embodiment of the invention as applicable to targets such as road illumination, billboards and sport arenas.
  • Fig. 13 (a-n) show other embodiments of the invention in a 2D and 3D schematic representation for applications such as for parking areas and gas stations Detailed description of the invention
  • the present invention is directed to an optical system having a solid state light source, such as an LED of any spectrum.
  • the system includes a lens that provides an output illumination pattern of uniform distribution over a remote and larger target.
  • the lens does not have an axis of revolution.
  • the lens has a generally non-circular outer shape in cross section and on top views, where the outer optical surfaces are angled one relative to another.
  • the lens includes refractive and reflective active optical surfaces to split, direct and shape the incoming beam from the light source towards the target in the form of several angled beams of prescribed energies calculated as a function of the shape of the target and distance to the target.
  • the lens has an inner primary and partially open optical cavity of a polygonal cross section facing the light source.
  • This optical cavity has a number of refractive optical surfaces whose shape and number is determined by the number of and shape of the illumination beams generated in conjunction with the other surfaces of the lens.
  • This novel optical system may include an array of white LEDs that generate the input illumination to an array of these lenses to insure the proper illumination level and uniformity at particular remote targets.
  • FIG. 2a there is shown an array of four illumination apparatuses 10 according to the invention.
  • Each apparatus 10 lies on support 12.
  • a single apparatus may no be sufficient, and therefore the present invention contemplates an array of such apparatuses.
  • the light emitted by the apparatus can exit from any number of facets of the lenses which form part of the apparatus, as will be apparent hereinafter.
  • the lens of Figure 2a permits illumination along predetermined regions. More particularly, the lenses are so arranged to permit an illumination pattern shown in Fig. 2d: two shorter patters 14a and 14b, and a longer pattern 14, which is adjacent the patterns 14a and 14b, The illumination pattern values are shown in Fig. 2c.
  • Figures 3a-3e show the apparatus according to a preferred embodiment of the invention.
  • the LED 2 lies on a die (not shown in this Figure).
  • the LED is physically separated from the lens by cavity 9 ⁇ Fig 3e) which has a surface 11 for refracting the beam coming from the LED 2.
  • the lens itself is made of a plurality of sub-lenses 20, 22, 24, 26 and 28, which cooperate together to achieve the objects of the invention.
  • Lenses 20 and 22 are mirror images of each other about a median plane or axis 32.
  • One aspect of the invention also lies in the quasi-square outline of the lens (or rectangular), as opposed to circular or oval lenses. This permits a more precise beam shaping, allowing rectangular illumination patterns.
  • Figure 3b is a top view of the apparatus, showing how it is separated by plane 32 into two portions, 34 and 36.
  • Figure 3c is a top perspective view of the apparatus.
  • Figure 3d is a side view of the apparatus, rotated 9Oo clockwise
  • Figure 3e is a sectional view of the apparatus, taken along line A-A of Fig 3b.
  • the lenses are so designed to provide an illumination pattern along a target area that is remote from the apparatus 10 along a reference axis. This reference axis is not illustrated, but can be thought of being towards top of Figure 3a, that is straight up.
  • the light beam emerging from LED die 2 is received by optical cavity 9 whose function is to split the beam into a plurality of beams via optical refraction as the light travels from an air space into the lens body and it goes through refractive surfaces 11.
  • the complex shape of surface 11 generates a plurality of beams such as beams that make an angle with respect to a normal axis perpendicular to the plane of the LED die. This is done purposely to achieve a beam restricted illumination over a target.
  • the illumination system 10 consists of an array of lenses and LEDs that create a uniform beam of light over a target (see for example Figs 5a and 5b).
  • the current design achieves an illumination ratio between various adjacent areas at the target level that is in the range of 3:1 , 2:1 or even better as a function of the specifics of the lens design.
  • the lenses covered by the current inventions have been designed to manage the light flux in a manner that ensures not only a uniform illumination at the target but also a light pattern that is either rectangular or square.
  • the optical cavity can be of various shapes, such as domed or circular, or even rectangular.
  • the cavity allows a better manipulation of the beam emitted by the LED, and therefore allows greater freedom in the design of the lenses for the specific purposes of the apparatus.
  • Figures 4a-4h there is shown the various ray tracings of the light as it exits the lens.
  • Figure 4a the light exits along surface 26.
  • Figure 4b light exits along surface 28.
  • Figure 4c light exits along surface 22 or 20.
  • the illumination spot of the beam FIG 4d shows the ray tracing for the combination of Figures 4a and 4b, and its resulting pattern.
  • Figure 4e shows the ray tracing of the combination of Figures 4a*4c.
  • Figure 4f is a front view of the apparatus, and shows the light exiting along surface 30, whereas Figure 4h shows the light exiting from surface 24.
  • Figures 9a-9f and 10 are different embodiments of the invention, showing alternative shapes for the lenses, resulting in different illumination patterns all the while respecting the invention.
  • the lens is characterized by a polygonal external shape, an inner optical cavity facing the LED die having a polygonal cross section to provide multiple beam illumination under an angle with respect to an axis perpendicular to the LED die.
  • Fig. 11 (a-o) there is shown an embodiment of the invention showing in 2D and 3D representations.
  • the optical apparatus 100 consists of a solid state light source 106 and a complex shaped lens 101.
  • Light source 101 can have any spectrum in the visible and invisible range.
  • light source 1 is a white LED.
  • Lens 101 can be made of any suitable optical material to match the optical characteristics of light source 106.
  • the lens is injection molded from a suitable moldable material.
  • Lens 101 includes an enclosed optical cavity 108 that faces LED source 106. As shown in Figs. 11 the light beam emerging from LED die 106 is received by optical cavity 108 whose function is to split the beam into a plurality of beams via optical refraction as the light travels from an air space into the lens body and goes through refractive surfaces 114.
  • Complex shape 101 generates a plurality of beams such as beams A-B-C shown in Figs. 11 f-g-h that all make an angle with respect to a normal axis perpendicular to the plane of the LED die.
  • the emerging beams from lens 101 are directed solely towards directions that prevent the light beams to illuminate an area defined by a plane defined by the back plane of the lens 101 as shown as item 101 c in Fig. 11a.
  • This is done purposely to achieve a beam restricted illumination over a target that is placed at one side of the illumination system.
  • the illumination system 100 consists of an array of lenses and LEDs that create a uniform beam of light over target 210.
  • the current design achieves an illumination ratio between various adjacent areas 206-208 at the target level that is in the range of 3:1, 2:1 or even better, as a function of the specifics of the lens design.
  • the lenses covered by the present invention have been designed to manage the light flux in a manner that ensures not only a uniform illumination at the target but also a light pattern that is either rectangular or square.
  • the lens has numerous inner optical surfaces and numerous exit optica! surfaces.
  • the optical cavity 108 plays an important role in splitting the beam and has optical surfaces that can be either flat or have an optical power.
  • exit optical surfaces of sub-lens elements 102, 104, 110 and 112 as defined as 102a-c, 104 a-b, 110a-b and 112 a-b have in general curved surfaces, and in some instances they have a cylindrical shape.
  • a second optical cavity 114 is also created to generate a supplemental exit beam to the target
  • FIGs. 13 a-m other embodiments of the invention show in 2D and 3D illustrate a LED source that, in conjunction with lenses 101 , delivers output illumination beams for applications such parking that require uniform square illumination. Unlike the design of lens 101 of Figs 11, these lenses provide a surrounding illumination beam.
  • the lens 101 is characterized by a polygonal external shape, an inner optical cavity 108 facing the LED die having a polygonal cross section and/or view that provides multiple beams illumination under an angle with respect to an axis perpendicular to the LED die.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L’invention concerne un système optique comprenant une source de lumière transistorisée, comme une diode électroluminescente (LED) d’un spectre quelconque, système comprenant une lentille qui fournit un motif d’éclairage de sortie ayant une répartition uniforme sur une cible à distance et plus grande. La lentille ne comprend pas d’axe de révolution. La lentille possède une forme externe généralement non circulaire tant du point de vue section transversale que vue de dessus, les surfaces optiques externes étant à un certain angle les unes par rapport aux autres. La lentille comprend des surfaces optiques actives réfractives et réflectives afin de diviser, diriger et former le faisceau entrant venant d'une source de lumière et se dirigeant vers la cible sous forme de plusieurs faisceaux orientés selon certains angles et ayant des énergies prédéterminées calculées en fonction de la forme de la cible et de la distance jusqu’à la cible. La lentille comprend une cavité optique interne primaire et partiellement ouverte qui possède une section transversale polygonale faisant face à la source de lumière. Cette cavité optique comprend un certain nombre de surfaces optiques réfractives dont la forme et le nombre sont déterminés par le nombre et la forme des faisceaux d’éclairage générés en conjonction avec les autres surfaces de la lentille. Ce nouveau système optique peut comprendre un réseau de LED blanches qui génèrent un éclairage d’entrée vers un réseau de ces lentilles afin de garantir un niveau et une uniformité d’éclairage corrects au niveau de cibles à distance particulières.
PCT/CA2009/001684 2008-11-21 2009-11-23 Appareil d’illumination optique transistorisé Ceased WO2010057311A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112009003638.4T DE112009003638B4 (de) 2008-11-21 2009-11-23 Optische Halbleiter-Beleuchtungsvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11690008P 2008-11-21 2008-11-21
US61/116,900 2008-11-21

Publications (1)

Publication Number Publication Date
WO2010057311A1 true WO2010057311A1 (fr) 2010-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2009/001684 Ceased WO2010057311A1 (fr) 2008-11-21 2009-11-23 Appareil d’illumination optique transistorisé

Country Status (3)

Country Link
US (1) US8215814B2 (fr)
DE (1) DE112009003638B4 (fr)
WO (1) WO2010057311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102853287A (zh) * 2011-06-30 2013-01-02 隆达电子股份有限公司 灯具结构

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8388193B2 (en) * 2008-05-23 2013-03-05 Ruud Lighting, Inc. Lens with TIR for off-axial light distribution
US9423096B2 (en) 2008-05-23 2016-08-23 Cree, Inc. LED lighting apparatus
US8348475B2 (en) 2008-05-23 2013-01-08 Ruud Lighting, Inc. Lens with controlled backlight management
US8293548B2 (en) * 2009-03-04 2012-10-23 Unilumin Group Co., Ltd. LED light module for street lamp and method of manufacturing same
US9915409B2 (en) 2015-02-19 2018-03-13 Cree, Inc. Lens with textured surface facilitating light diffusion
US10422503B2 (en) 2009-10-30 2019-09-24 Ideal Industries Lighting Llc One-piece multi-lens optical member and method of manufacture
WO2010138723A1 (fr) * 2009-05-28 2010-12-02 Dialight Corporation Lentille de réverbère à diode électroluminescente
US9255686B2 (en) 2009-05-29 2016-02-09 Cree, Inc. Multi-lens LED-array optic system
US8891171B2 (en) * 2010-02-01 2014-11-18 Dbm Reflex Enterprises Inc. High sag thick lens for use in an illumination apparatus
EP2531345B1 (fr) * 2010-02-01 2019-04-03 DBM Reflex Enterprises Inc. Lentille moulée avec des couches incrustées de la même résine utilisant un procédé de moulage par injection à deux étapes.
TW201219839A (en) * 2010-11-03 2012-05-16 Foxsemicon Integrated Tech Inc Lens and light source module
CN102734744A (zh) * 2011-04-13 2012-10-17 光林电子股份有限公司 光学透镜及光学透镜板
CN103502872B (zh) * 2011-05-05 2016-09-14 皇家飞利浦有限公司 用于形成光束的光学器件
US20120307495A1 (en) * 2011-06-06 2012-12-06 Leotek Electronics Corporation Optical lens and optical lens plate
DE102011085275B4 (de) * 2011-07-08 2021-01-28 Zumtobel Lighting Gmbh Optisches Element
KR101531390B1 (ko) * 2011-08-30 2015-07-06 삼성전자주식회사 비대칭 형상의 렌즈 및 이를 포함하는 가로등
US9541257B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for primarily-elongate light distribution
US10408429B2 (en) 2012-02-29 2019-09-10 Ideal Industries Lighting Llc Lens for preferential-side 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
TW201409105A (zh) * 2012-08-31 2014-03-01 Hon Hai Prec Ind Co Ltd 光纖耦合透鏡及光學通訊模組
CN103672728B (zh) * 2012-09-13 2017-09-08 赛尔富电子有限公司 透镜、led模组及使用该led模组的照明系统
CN103672730B (zh) * 2012-09-13 2017-02-22 赛尔富电子有限公司 透镜、led模组及使用该led模组的照明系统
CN103672729B (zh) * 2012-09-13 2016-12-21 赛尔富电子有限公司 透镜、led模组及使用该led模组的照明系统
KR102050472B1 (ko) 2013-01-22 2020-01-09 삼성전자주식회사 조도 분포 조절용 렌즈 및 그 렌즈를 포함한 ｌｅｄ 패키지
USD715990S1 (en) * 2013-03-11 2014-10-21 Wan-Jiong Lin Lens
USD715991S1 (en) * 2013-03-11 2014-10-21 Wan-Jiong Lin Lens
USD715481S1 (en) * 2013-03-11 2014-10-14 Wan-Jiong Lin Lens
USD718490S1 (en) * 2013-03-15 2014-11-25 Cree, Inc. LED lens
US10400984B2 (en) 2013-03-15 2019-09-03 Cree, Inc. LED light fixture and unitary optic member therefor
US9920901B2 (en) 2013-03-15 2018-03-20 Cree, Inc. LED lensing arrangement
ES2728848T3 (es) * 2013-12-17 2019-10-29 Goodrich Lighting Systems Gmbh Unidad de luz de aeronave y aeronave que tiene dicha unidad de luz de aeronave
US9195281B2 (en) 2013-12-31 2015-11-24 Ultravision Technologies, Llc System and method for a modular multi-panel display
US9523479B2 (en) 2014-01-03 2016-12-20 Cree, Inc. LED lens
EP3105500A1 (fr) * 2014-01-27 2016-12-21 Philips Lighting Holding B.V. Dispositif optique et luminaire
US9410674B2 (en) 2014-08-18 2016-08-09 Cree, Inc. LED lens
US9757912B2 (en) 2014-08-27 2017-09-12 Cree, Inc. One-piece multi-lens optical member with ultraviolet inhibitor and method of manufacture
US10207440B2 (en) 2014-10-07 2019-02-19 Cree, Inc. Apparatus and method for formation of multi-region articles
US9470394B2 (en) 2014-11-24 2016-10-18 Cree, Inc. LED light fixture including optical member with in-situ-formed gasket and method of manufacture
US10468566B2 (en) * 2017-04-10 2019-11-05 Ideal Industries Lighting Llc Hybrid lens for controlled light distribution
US10274159B2 (en) 2017-07-07 2019-04-30 RAB Lighting Inc. Lenses and methods for directing light toward a side of a luminaire
US10731823B2 (en) 2018-03-28 2020-08-04 Varroc Lighting Systems, s.r.o. Composite lens arrangement of a light assembly for light collection and beam shaping
US11815701B2 (en) 2020-07-02 2023-11-14 Magwerks Vision Inc. Unitary multi-optic systems with optical barriers
CN112735296A (zh) * 2021-01-29 2021-04-30 惠安县图安网络服务中心 广告灯箱

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741351B2 (en) * 2001-06-07 2004-05-25 Koninklijke Philips Electronics N.V. LED luminaire with light sensor configurations for optical feedback
CA2615706A1 (fr) * 2005-03-23 2006-09-28 Tir Technology Lp Appareil et procede pour recueillir et detecter de la lumiere emise par un appareil d'eclairage
US20070279904A1 (en) * 2004-07-14 2007-12-06 Tridonic Optoelectronics Gmbh Led Spotlight Having A Funnel-Shaped Lens
US7390117B2 (en) * 2006-05-02 2008-06-24 3M Innovative Properties Company LED package with compound converging optical element
US20080212319A1 (en) * 2006-12-24 2008-09-04 Klipstein Donald L LED lamps including LED work lights

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254961A (en) 1937-08-21 1941-09-02 George M Cressaty Unitary lens system
US5926320A (en) 1997-05-29 1999-07-20 Teldedyne Lighting And Display Products, Inc. Ring-lens system for efficient beam formation
US5924788A (en) 1997-09-23 1999-07-20 Teledyne Lighting And Display Products Illuminating lens designed by extrinsic differential geometry
US6536923B1 (en) * 1998-07-01 2003-03-25 Sidler Gmbh & Co. Optical attachment for a light-emitting diode and brake light for a motor vehicle
US6607286B2 (en) 2001-05-04 2003-08-19 Lumileds Lighting, U.S., Llc Lens and lens cap with sawtooth portion for light emitting diode
US6674096B2 (en) 2001-06-08 2004-01-06 Gelcore Llc Light-emitting diode (LED) package and packaging method for shaping the external light intensity distribution
US6896381B2 (en) 2002-10-11 2005-05-24 Light Prescriptions Innovators, Llc Compact folded-optics illumination lens
US7006306B2 (en) 2003-07-29 2006-02-28 Light Prescriptions Innovators, Llc Circumferentially emitting luminaires and lens-elements formed by transverse-axis profile-sweeps
US7009213B2 (en) 2003-07-31 2006-03-07 Lumileds Lighting U.S., Llc Light emitting devices with improved light extraction efficiency
DE10351397A1 (de) 2003-10-31 2005-06-16 Osram Opto Semiconductors Gmbh Lumineszenzdiodenchip
KR100616598B1 (ko) 2004-08-11 2006-08-28 삼성전기주식회사 발광 다이오드 렌즈 및 이를 구비한 백라이트 모듈
KR100688767B1 (ko) 2004-10-15 2007-02-28 삼성전기주식회사 Ｌｅｄ 광원용 렌즈
TWI317829B (en) * 2004-12-15 2009-12-01 Epistar Corp Led illumination device and application thereof
EP2383562A1 (fr) 2006-02-27 2011-11-02 Illumination Management Solutions, Inc. Dispositif DEL amélioré pour génération de faisceau large
US20070257270A1 (en) 2006-05-02 2007-11-08 3M Innovative Properties Company Led package with wedge-shaped optical element
US7618163B2 (en) * 2007-04-02 2009-11-17 Ruud Lighting, Inc. Light-directing LED apparatus
ES2353936T3 (es) 2007-04-05 2011-03-08 Koninklijke Philips Electronics N.V. Conformador de haz luminoso.
US7837359B2 (en) * 2007-04-09 2010-11-23 Innotec Corporation Lens system for LED lights
US8038319B2 (en) * 2008-05-28 2011-10-18 Lighting Science Group Corporation Luminaire and method of operation
US8002435B2 (en) * 2008-06-13 2011-08-23 Philips Electronics Ltd Philips Electronique Ltee 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 (fr) * 2008-08-14 2017-01-25 Cooper Technologies Company Dispositifs à diodes électroluminescentes pour génération de faisceau large décalé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6741351B2 (en) * 2001-06-07 2004-05-25 Koninklijke Philips Electronics N.V. LED luminaire with light sensor configurations for optical feedback
US20070279904A1 (en) * 2004-07-14 2007-12-06 Tridonic Optoelectronics Gmbh Led Spotlight Having A Funnel-Shaped Lens
CA2615706A1 (fr) * 2005-03-23 2006-09-28 Tir Technology Lp Appareil et procede pour recueillir et detecter de la lumiere emise par un appareil d'eclairage
US7390117B2 (en) * 2006-05-02 2008-06-24 3M Innovative Properties Company LED package with compound converging optical element
US20080212319A1 (en) * 2006-12-24 2008-09-04 Klipstein Donald L LED lamps including LED work lights

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102853287A (zh) * 2011-06-30 2013-01-02 隆达电子股份有限公司 灯具结构

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US8215814B2 (en) 2012-07-10
US20100128488A1 (en) 2010-05-27

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