EP2486434A1 - Leuchte mit lichtleiter und descartes-linse oder -reflektor - Google Patents
Leuchte mit lichtleiter und descartes-linse oder -reflektorInfo
- Publication number
- EP2486434A1 EP2486434A1 EP10767984A EP10767984A EP2486434A1 EP 2486434 A1 EP2486434 A1 EP 2486434A1 EP 10767984 A EP10767984 A EP 10767984A EP 10767984 A EP10767984 A EP 10767984A EP 2486434 A1 EP2486434 A1 EP 2486434A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- optical element
- lichtleitstruktur
- optical
- approximately
- 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- Withdrawn
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
- G02B6/0005—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 of the fibre type
- G02B6/0008—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 of the fibre type the light being emitted at the end of the fibre
-
- 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
-
- 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
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
Definitions
- the invention is based on a light-conducting structure according to the features of the preamble of patent claim 1.
- the document WO 2006/054199 Al discloses such a light guiding structure.
- This has a light source, for example ⁇ an LED or a laser light emitting element, which is optically connected to a rod-shaped light guide.
- An end section of the light guide facing away from the light source is designed with a specific structure or has a specific shape which serves to influence the emission characteristic of the light beams.
- the radiation characteristic of the light source is changed by the light guide structure such that the light then radiates approximately, for example, as in a halogen or gas discharge lamp.
- a disadvantage of this solution is that the structures in the end portion of the light guide reduce the transmitted radiation ⁇ power of the light source and prevent the described radiation effective transmission of light from the source to a target area.
- the object of the present invention is to provide a light-guiding structure for modifying a radiation characteristic. to create a light source that is simple and efficient.
- a Lichtleit MUST a light ⁇ source that is optically connected with a light guide ⁇ ver.
- An optical element whose surface facing away from the light-guiding element is in the form of a section of a rotational ellipsoid is further coupled to the light-guiding element, wherein a geometric sectional plane of the section extends approximately orthogonally to the longitudinal axis of the ellipsoid of revolution.
- This solution has the advantage that with the guided by the light ⁇ conductive structure light of a primary light source, a secondary light source is generated whose location and radiation (the latter by design of the elliptical surface) are advantageously adapted to the application or a nach ⁇ following optical system can, where the location of the primary light source differs and, for example, in the focal point of optics can be placed plat ⁇ .
- mechanical components of the primary light source such as shafts, power supply lines or heat sinks, do not impair the optical transmission.
- the light guide member is preferably rod-shaped forms and be ⁇ a light entry window with the primä- Ren light source optically connected and coupled via a light exit window with the optical element.
- the longitudinal axis of the light-guiding element and the longitudinal axis of the optical element preferably extend coaxially with one another.
- the light exit window of the light guide is angeord ⁇ net approximately in a first focal point of the ellipsoidal optical element, whereby the light emerging from the optical element is collimated.
- the approximately rotationsellipsoidförmig formed portion of the optical element is mirrored, whereby the light ⁇ rays are focused in the second focus of the ellipsoidal surface and spread from there into the rear half space.
- a secondary light source produced in this way at this location can now advantageously be positioned in the focal point of a reflector or its closer surroundings so that it reflects all its light.
- the reflector may be elliptical or parabolic, for example.
- the re mirrored from the light exit portion ⁇ inflected light beams do not uncontrolled upon exit from the optical element by refraction at the surface are deflected lines which the guide element associated wall ⁇ th surface is preferably hemispherical in shape, is disposed where ⁇ added at the center of the hemisphere portion as in the two ⁇ th focal point of the ellipsoidal exit portion or light thereto.
- the light-guiding element and the optical element are non-positively, materially and / or positively connected with each other.
- the optical element is, for example, of a synthetic material ⁇ and the light guide from a glass.
- FIG. 1 is a perspective view of a Lichtleit Cook according to a first embodiment
- FIG. 2 is a side view of the light guiding structure according to the first embodiment
- FIG. 3 shows a schematic representation of light beams in the light guide structure according to the first embodiment
- FIG. 4 is a perspective view of the light guiding structure according to a second embodiment
- FIG. 5 is a perspective view of the light guiding structure according to the second embodiment
- FIG. and 6 shows a schematic illustration of light beams in the light guide structure according to the second exemplary embodiment.
- FIG. 1 shows a perspective view of a light-conducting structure 1 according to a first exemplary embodiment.
- This has an approximately rod-shaped light ⁇ guiding element 2, which is optically connected via a light entrance window 4 with a light source 6, for example an LED.
- a light source 6 for example an LED.
- Light rays of the light source 6 are then guided through the light guide 2 to a light from ⁇ exit window 8 and in an arranged thereon
- Optikele ⁇ ment 10 with a correspondingly formed a portion of a Ro ⁇ tationsellipsoids light exit portion.
- FIG. 2 discloses the optical waveguide structure 1 from FIG. 1 in a side view.
- a geometric cutting plane of the Lichtaustrittsab ⁇ section 11 extends approximately orthogonal to the rotational axis of the ellipsoid of revolution and has ⁇ toward the light guide element 2.
- a numerical eccentricity of the ellipsoid - as known in the art - is correspondingly
- n chosen, where n is the refractive index of the medium from which the optical element 10 is constructed.
- Figure 3 illustrates in a schematic side view of a portion of the Lichtleit Vietnamese 1 according to the first exemplary embodiment.
- the structure of the Optikele ⁇ ments 10 can be seen.
- this has a the light guide 2 assigning half ⁇ spherical section 14, whereby the optical element 10 is designed approximately egg ⁇ shaped.
- the longitudinal axes 16 of the light exit portion 11 of the hemispherical portion 14 and the light-guiding element 2 extend approximately coaxially zueinan ⁇ the.
- the light emission window 8 of the light guide 2 is arranged of the optical element 10 about the first focal point 18 of the waste in accordance with a section of an ellipsoid of revolution formed ⁇ light exiting portion 11.
- the optical element 10 may be made from an inexpensive art ⁇ cloth, as this is spaced by the Lichtleitele ⁇ element 2 of the high temperatures in the range of the light source 6, thereby preventing damage of the plastic material due to high temperatures ver ⁇ avoided is.
- the light guide 2 is beispielswei ⁇ se made of glass, whereby this has sufficient mechanical stability to support the optical element 10.
- the optical element 10 is non-positively, material, and / or form ⁇ conclusively connected to the light guide 2.
- the Ele ⁇ elements 2, 10 are ver example, adhesively bonded with an immersion ⁇ and / or the optical element 10 has a recess into which the light guide non-positively and / or form-locking dips.
- the rotationally ellipsoidal surface or the light exit section 11 of the optical element 10 in this case has a mirrored surface 20, which directs the light rays through the optical element 10 onto a reflector 22.
- the elliptical reflector 22 is approximately at ⁇ tig of the light guide 2 passes, wherein the longitudinal axes of the light guide 2 and the reflector 22 coincide.
- Figure 5 illustrates the Lichtleit Camill 1 of Figure 4 with light rays 12.
- these are ge ⁇ directed by the optical element 10 in the direction of the reflector 22 and be reflected therefrom.
- the light beams 12 are then focused by the reflector 22.
- Figure 6 apparently the Lichtleit Quilt 1 in a schematic side view according to the second adoptedsbei ⁇ game.
- the light rays 12 emerging from the light guide element 2 pass into the ellipsoidal light exit section 11 via the hemisphere section 14, are reflected at the mirrored surface 20 of the light exit section 11 in the direction of a second focal point 24 of the light exit section 11, once again pass through the hemisphere section 14 , pass out of this from the optical element 10, meet the reflector 22 and are reflected on this.
- the shape of the hemispherical portion 14 and by the substantially vertical Auftref ⁇ fen of the light beams 12 whose direction is hardly accession example by a refractive influenced.
- the second focal point 24 thus substantially a light source of the primary light source 6 is illuminated secondary light source is provided.
- the reflector 22 surrounds the hemisphere section 14 of the optical element 10 approximately hemispherically, as a result of which all light rays 12 reflected by the surface 20 strike it.
- the first focal point of the reflector is arranged in the second focal point 24 of the ellipsoidal surface 20 in this example.
- the light beams are totally reflected within the light guide 2.
- the diameter of the light-guiding element 2 can be adapted to the size of the light source 6.
- the size of the optical element 10 is aller- recently limited by the mechanical stability of the Optikele ⁇ element 10 carrying light-guiding element. 2
- the size of the optical element 10 in the United ⁇ equal to the size of the reflector 22 to make it the reflected light beam as little as possible vignetting.
- the light Vietnamese ⁇ cher light sources 6 can be coupled, which are arbitrarily interchangeable. The different light sources then have the same emission characteristic by the light guide structure 1.
- optical waveguide structure 1 for retrofitting luminaires with an already existing reflector.
- Fields of application are then ⁇ example, front and rear lights of automobiles, surgical lights, dental lights or various lamps, such as floor lamps.
- a Lichtleit Scheme with a Lichtquel ⁇ le which is connected via a light guide with an optical element.
- the optical element in this case has a cut off ⁇ as ellipsoidal section.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009048830A DE102009048830B4 (de) | 2009-10-09 | 2009-10-09 | Lichtleitstruktur |
PCT/EP2010/064901 WO2011042458A1 (de) | 2009-10-09 | 2010-10-06 | Leuchte mit lichtleiter und descartes-linse oder -reflektor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2486434A1 true EP2486434A1 (de) | 2012-08-15 |
Family
ID=43416545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10767984A Withdrawn EP2486434A1 (de) | 2009-10-09 | 2010-10-06 | Leuchte mit lichtleiter und descartes-linse oder -reflektor |
Country Status (6)
Country | Link |
---|---|
US (1) | US9285526B2 (de) |
EP (1) | EP2486434A1 (de) |
JP (1) | JP5677443B2 (de) |
CN (1) | CN102576118B (de) |
DE (1) | DE102009048830B4 (de) |
WO (1) | WO2011042458A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010051782B4 (de) * | 2010-11-18 | 2015-03-05 | Daimler Ag | Lichtleitelement |
US8998478B2 (en) * | 2011-04-20 | 2015-04-07 | Rambus Delaware Llc | Lighting assembly |
US9081125B2 (en) | 2011-08-08 | 2015-07-14 | Quarkstar Llc | Illumination devices including multiple light emitting elements |
EP2604403A1 (de) * | 2011-12-12 | 2013-06-19 | LCT GesmbH Light & Concrete Technology | Lichtleitkörper und lichtdurchlässiger Verbundkörper |
CN107062103A (zh) * | 2013-02-01 | 2017-08-18 | 夸克星有限责任公司 | 包括多个发光元件的照明装置 |
US10036517B2 (en) | 2013-05-16 | 2018-07-31 | 3M Innovative Properties Company | Lightguide as luminaire |
FR3009063B1 (fr) * | 2013-07-25 | 2018-03-30 | Valeo Systemes Thermiques | Dispositif lumineux |
CN110286437A (zh) | 2013-09-17 | 2019-09-27 | 夸克星有限责任公司 | 照明装置 |
FR3031793B1 (fr) * | 2015-01-15 | 2017-01-27 | Valeo Iluminacion Sa | Dispositif lumineux de vehicule dans lequel un guide de lumiere supporte un autre guide de lumiere |
Family Cites Families (32)
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US1872643A (en) * | 1930-05-17 | 1932-08-16 | Nat Colortype Company | Light reflecting device |
DE2757543A1 (de) * | 1977-12-23 | 1979-06-28 | Leitz Ernst Gmbh | Beleuchtungseinrichtung |
US4869580A (en) | 1986-11-21 | 1989-09-26 | Quality Technologies Corporation | Immersion cartesian ovoid lens |
JP3341325B2 (ja) * | 1992-06-19 | 2002-11-05 | 株式会社デンソー | 車両用灯具装置 |
US5398171A (en) * | 1993-09-02 | 1995-03-14 | General Electric Company | Light guide termination arrangement for producing a convergent beam output |
JP3493696B2 (ja) * | 1993-10-20 | 2004-02-03 | 株式会社デンソー | 照明装置 |
JP3663223B2 (ja) * | 1993-12-10 | 2005-06-22 | ゼネラル・エレクトリック・カンパニイ | 無電極放電ランプ用光結合装置及び光分配装置 |
JPH07169305A (ja) * | 1993-12-15 | 1995-07-04 | Nippondenso Co Ltd | 車両用灯具装置 |
US5554100A (en) * | 1994-03-24 | 1996-09-10 | United States Surgical Corporation | Arthroscope with shim for angularly orienting illumination fibers |
CA2134902C (en) * | 1994-04-07 | 2000-05-16 | Friedrich Bertignoll | Light diffusing apparatus |
US5429635A (en) * | 1994-07-13 | 1995-07-04 | Pioneer Optics Company | Fiberoptic spherical diffuser |
JP3337560B2 (ja) * | 1994-07-21 | 2002-10-21 | 株式会社デンソー | 車両用灯具装置 |
DE19705146A1 (de) * | 1997-02-11 | 1998-08-13 | Hella Kg Hueck & Co | Beleuchtungsvorrichtung für Kraftfahrzeuge |
US6350041B1 (en) * | 1999-12-03 | 2002-02-26 | Cree Lighting Company | High output radial dispersing lamp using a solid state light source |
JP2003528347A (ja) * | 2000-03-17 | 2003-09-24 | コーニング インコーポレイテッド | 光導波路レンズ及び作成方法 |
US6369925B1 (en) * | 2000-06-09 | 2002-04-09 | Physical Optics Corporation | Beam combiner |
DE10062103A1 (de) | 2000-12-13 | 2002-07-18 | Hella Kg Hueck & Co | Fahrzeugscheinwerfer |
DE10139011A1 (de) | 2001-08-08 | 2003-02-20 | Volkswagen Ag | Verfahren zum Ansteuern eines Scheinwerfersystems zur Erzeugung eines Autobahnlichts und/oder Fernlichts |
DE10139010A1 (de) | 2001-08-08 | 2003-02-20 | Volkswagen Ag | Verfahren zum Ansteuern eines Scheinwerfersystems zur Erzeugung eines Landstraßenlichts |
EP1283127A3 (de) | 2001-08-08 | 2009-11-18 | Volkswagen Aktiengesellschaft | Verfahren zum Ansteuern eines Scheinwerfersystems zur Erzeugung adaptiver Lichtfunktionen |
US6819505B1 (en) * | 2003-09-08 | 2004-11-16 | William James Cassarly | Internally reflective ellipsoidal collector with projection lens |
AT411847B (de) * | 2002-03-19 | 2004-06-25 | Swarovski & Co | Elektrische leuchtvorrichtung in kerzenform |
US7329029B2 (en) * | 2003-05-13 | 2008-02-12 | 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 |
US7038846B2 (en) * | 2003-11-24 | 2006-05-02 | Electronic Scripting Products, Inc. | Solid catadioptric lens with a single viewpoint |
JP4339153B2 (ja) * | 2004-03-11 | 2009-10-07 | 株式会社小糸製作所 | 車両用灯具ユニット |
JP4310221B2 (ja) * | 2004-03-25 | 2009-08-05 | シャープ株式会社 | ランプ装置 |
WO2006054199A1 (en) | 2004-11-17 | 2006-05-26 | Koninklijke Philips Electronics N. V. | Light source and illumination device comprising at least one light-emitting element |
JP4514052B2 (ja) * | 2005-10-14 | 2010-07-28 | スタンレー電気株式会社 | 車両用灯具 |
FR2901345B1 (fr) * | 2006-05-16 | 2008-07-18 | Valeo Vision Sa | Dispositif d'eclairage et/ou de signalisation pour vehicule automobile. |
DE102007018996A1 (de) * | 2007-04-21 | 2008-10-23 | Hella Kgaa Hueck & Co. | Scheinwerfer für Fahrzeuge |
US7926994B2 (en) * | 2008-01-16 | 2011-04-19 | Christie Digital Systems Usa, Inc. | Uniform light production system and apparatus |
-
2009
- 2009-10-09 DE DE102009048830A patent/DE102009048830B4/de not_active Expired - Fee Related
-
2010
- 2010-10-06 EP EP10767984A patent/EP2486434A1/de not_active Withdrawn
- 2010-10-06 WO PCT/EP2010/064901 patent/WO2011042458A1/de active Application Filing
- 2010-10-06 US US13/501,088 patent/US9285526B2/en not_active Expired - Fee Related
- 2010-10-06 JP JP2012532576A patent/JP5677443B2/ja not_active Expired - Fee Related
- 2010-10-06 CN CN201080045555.8A patent/CN102576118B/zh not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2011042458A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102009048830B4 (de) | 2012-01-12 |
US9285526B2 (en) | 2016-03-15 |
WO2011042458A1 (de) | 2011-04-14 |
JP5677443B2 (ja) | 2015-02-25 |
CN102576118A (zh) | 2012-07-11 |
US20120195059A1 (en) | 2012-08-02 |
JP2013507728A (ja) | 2013-03-04 |
CN102576118B (zh) | 2015-04-08 |
DE102009048830A1 (de) | 2011-04-14 |
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Legal Events
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OSRAM GMBH |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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