EP2534409A2 - Anordnung zur lichtabgabe mit punktförmigen lichtquellen und reflektor - Google Patents
Anordnung zur lichtabgabe mit punktförmigen lichtquellen und reflektorInfo
- Publication number
- EP2534409A2 EP2534409A2 EP11706193A EP11706193A EP2534409A2 EP 2534409 A2 EP2534409 A2 EP 2534409A2 EP 11706193 A EP11706193 A EP 11706193A EP 11706193 A EP11706193 A EP 11706193A EP 2534409 A2 EP2534409 A2 EP 2534409A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- arrangement
- light sources
- reflector
- sources
- 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.)
- Granted
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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
-
- 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
- F21Y2105/00—Planar light sources
- F21Y2105/10—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements
- F21Y2105/12—Planar light sources comprising a two-dimensional [2D] array of point-like light-generating elements characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
-
- 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 light-emitting arrangement according to the invention shown in FIG. 1 and generally designated by the reference numeral 1, is to be used in particular for the realization of a radiator. Accordingly, a relatively high amount of light to be delivered, which is why a plurality of punctiform light sources is used.
- These light sources are, in particular, LEDs 2, although the concept according to the invention can also be applied to other types of light sources
- Substantially punctiform light sources can be transmitted.
- the LEDs 2 are arranged on a common carrier element 3, in particular a circuit board. You can, for example, in a matrix structure or in a
- a heat sink 4 is arranged, with the aid of which the heat occurring during operation of the arrangement 1 can be effectively dissipated.
- the light emitted by the LEDs 2 light should share a cup-shaped
- Reflector 5 are issued, which is also arranged on the circuit board 3.
- Beam desired that is, the light rays leaving the reflector 5 should be as parallel as possible. This effect can ideally be achieved if the light source is arranged in the focal point B of the radiator 5 or in the region of the focal point B.
- FIG 2 shows an enlarged view of these optical means, which are preferably so-called Fresnel lenses 10. These consist of a transparent material and are disc-shaped. They have both on their underside and on their top refractive, prism-like structures. These Fresnel lenses 10 now cause that the light emitted by the associated LEDs 2 light is focused on the focal point B of the reflector 5. As a result, at the focal point B, a virtual light source 20 with an extremely small
- This virtual light source 20 radially radiates out of the focal point B, so that the reflector 5 can influence the light beams in an optimum manner. This results in a nearly parallel emission of the light beams, as shown in FIG. Accordingly, the reflector 5 can be used optimally for focusing the light, although a planar light source arrangement is used instead of a single punctual light source. Another advantage is that direct light of the LEDs 2, that is, the part that does not fall on the reflector and is directed, is suppressed. The quality of the emitted light beam of the arrangement according to the invention is correspondingly very high.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202010002125U DE202010002125U1 (de) | 2010-02-10 | 2010-02-10 | Anordnung zur Lichtabgabe mit punktförmigen Lichtquellen und Reflektor |
| PCT/EP2011/051943 WO2011098513A2 (de) | 2010-02-10 | 2011-02-10 | Anordnung zur lichtabgabe mit punktförmigen lichtquellen und reflektor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2534409A2 true EP2534409A2 (de) | 2012-12-19 |
| EP2534409B1 EP2534409B1 (de) | 2019-05-08 |
Family
ID=44280682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11706193.7A Active EP2534409B1 (de) | 2010-02-10 | 2011-02-10 | Anordnung zur lichtabgabe mit punktförmigen lichtquellen und reflektor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2534409B1 (de) |
| CN (1) | CN102753881A (de) |
| DE (1) | DE202010002125U1 (de) |
| WO (1) | WO2011098513A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527954B (zh) * | 2013-10-22 | 2015-07-08 | 深圳市中电照明股份有限公司 | 一种led投射式光源 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6871983B2 (en) * | 2001-10-25 | 2005-03-29 | Tir Systems Ltd. | Solid state continuous sealed clean room light fixture |
| KR20090115810A (ko) * | 2001-12-29 | 2009-11-06 | 항조우 후양 신잉 띠앤즈 리미티드 | Led 및 led램프 |
| JP2005038605A (ja) * | 2002-02-12 | 2005-02-10 | Daisei Denki Kk | 照明器具 |
| JP2004349130A (ja) * | 2003-05-22 | 2004-12-09 | Koito Mfg Co Ltd | 車両用灯具 |
| US6942360B2 (en) * | 2003-10-01 | 2005-09-13 | Enertron, Inc. | Methods and apparatus for an LED light engine |
| DE10358053A1 (de) * | 2003-12-05 | 2005-07-14 | Siemens Ag | Lichtsignal |
| CN2781168Y (zh) * | 2005-02-02 | 2006-05-17 | 重庆万道光电科技有限公司 | Led多芯片功率杯节能灯 |
| US20060221613A1 (en) * | 2005-04-05 | 2006-10-05 | Coushaine Charles M | Virtual point light source |
| DE602007001479D1 (de) * | 2006-04-19 | 2009-08-20 | Faro Spa | Kompakte Beleuchtungsvorrichtung, insbesondere anwendbar bei einer zahnärztlichen Lampe |
| DE102006028961A1 (de) * | 2006-06-23 | 2007-12-27 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Beleuchtungsvorrichtung mit einer Mehrzahl von Lichtquellen |
| ATE500469T2 (de) * | 2006-11-27 | 2011-03-15 | Philips Solid State Lighting | Verfahren und vorrichtung zur bereitstellung einheitlicher projektionsbeleuchtung |
| US7841741B2 (en) * | 2007-04-02 | 2010-11-30 | Endicott Interconnect Technologies, Inc. | LED lighting assembly and lamp utilizing same |
| EP2265861B1 (de) * | 2008-03-13 | 2014-10-22 | Fraen Corporation | Reflektierende beleuchtungsvorrichtungen und -systeme mit variabler lichtfleckgrösse |
-
2010
- 2010-02-10 DE DE202010002125U patent/DE202010002125U1/de not_active Expired - Lifetime
-
2011
- 2011-02-10 EP EP11706193.7A patent/EP2534409B1/de active Active
- 2011-02-10 WO PCT/EP2011/051943 patent/WO2011098513A2/de not_active Ceased
- 2011-02-10 CN CN2011800086929A patent/CN102753881A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011098513A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011098513A3 (de) | 2011-10-20 |
| WO2011098513A2 (de) | 2011-08-18 |
| CN102753881A (zh) | 2012-10-24 |
| DE202010002125U1 (de) | 2011-08-30 |
| EP2534409B1 (de) | 2019-05-08 |
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