WO2010000241A2 - Led-basierender beleuchtungskörper - Google Patents
Led-basierender beleuchtungskörper Download PDFInfo
- Publication number
- WO2010000241A2 WO2010000241A2 PCT/DE2009/000924 DE2009000924W WO2010000241A2 WO 2010000241 A2 WO2010000241 A2 WO 2010000241A2 DE 2009000924 W DE2009000924 W DE 2009000924W WO 2010000241 A2 WO2010000241 A2 WO 2010000241A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- led
- lighting fixture
- reflector
- based lighting
- modules
- Prior art date
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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/048—Optical design with facets structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
-
- 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
- F21V7/0008—Reflectors for light sources providing for indirect lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0457—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
-
- 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
- F21V31/00—Gas-tight or water-tight arrangements
-
- 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
- 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 use of the LED for LED-based lighting fixtures in street lighting installations appears problematic, since the LEDs, unlike the conventional lighting fixtures, do not emit the light on all sides but only on their light exit surface in the form of a narrow beam of light, which in conjunction with the interaction of a The reflector technology known from the beginning of the art with regard to a uniform distribution of light did not lead to any acceptable illumination of a large light useful surface.
- LED-based street lighting concepts are previously known from the prior art, in which only a single reflector optics is used per LED module, the further beam shaping was moved to the central luminaire optics downstream of all modules.
- these solutions have the disadvantage that they are very costly, require a large amount of space and yet not illuminate the light field of use homogeneously.
- US Pat. No. 7,090,370 B2 describes an LED-based lighting fixture which comprises a housing with an LED placed therein, a reflector and an exit surface which diffuses the light in a diffuse manner.
- the all LED commonly assigned central reflector here consists of a plurality of spaced apart individual reflectors.
- this invention is a lighting fixture with a central luminaire optics, which has the aforementioned disadvantages.
- a faceted reflector which contains a plurality of individual reflectors, which are embedded in a carrier.
- One main surface of the carrier represents the light entrance side, the other main surface the light exit side.
- the individual reflectors may be formed as cavities in the carrier, which preferably have a prismatic shape. The radiation to be reflected is totally reflected at a part of the cavity interfaces.
- a light source in the form of one or more LEDs is placed on the entrance side of the faceted reflector.
- the faceted reflector is shared by all LEDs.
- the object of the invention is now to propose an LED-based lighting fixture having a reflector optics suitable for achieving illuminance levels required for the street lighting devices, which generates a virtually homogeneous clearance profile on the Lichtwendzebene and which provides an efficient relationship between luminous flux and power used.
- the LED-based lighting body comprises a plurality of modules, each of these modules each having an optical system for receiving an LED carrier board with at least one LED arranged thereon, a reflector and a light-transparent cover.
- the reflector spanning the light exit cone of the LED is embodied with facets, wherein the individual facets complement each other to form a closed, continuously extending optical functional surface and thus extend at a specific angle to each other such that the light emitted by the LED essentially passes over the facets of the reflector is directed to the light utility plane.
- each of these modules is encapsulated in a gastight manner, several modules are encapsulated in groups gas-tight or it is formed the entirety of all modules gas-tight encapsulated.
- the encapsulations are either evacuated or filled with a noble gas with non-oxidative and / or non-corrosive action.
- the entirety of the facets are formed by a reflector made in two parts, a first part being formed as a bridge overhanging the light exit cone of the LED at least partially, and the second part being formed by a base unit receiving the LED carrier board.
- the respective outer facets of the bridge and the facets of the base unit contact each other without a gap.
- the light emitted by the LED light is directed exclusively and thus only indirectly via the facets of the reflector to the light utility plane. This is achieved by the reflector almost completely shields the LED in the relatively small area of its light exit surface.
- the reflector spanning the light exit cone of the LED is sufficiently spaced from the light exit surface of the LED to form a gap, so that the light emitted by the LED in the region of the light exit surface of the LED can radiate unhindered and completely the reflector.
- the reflector according to the invention is designed to generate a different beam shape from the light exit cone of the LED.
- the bridge of the preferably two-part reflector has in cross-section substantially a double-T-shape with two opposing flanges and a web extending between the flanges.
- the two flanges and the web extending between the flanges each comprise a plurality of facets which extend in more than two planes to each other.
- the reflector extends over the LED or the LED carrier board such that the light exit cone of the LED is essentially spanned by its web.
- the reflector either completely made of a reflective material or from a reflector support with a to produce applied reflective coating.
- a reflector made of plastic reflector carrier on the side facing the LED a reflector layer or mirror layer is brought to the facets.
- the shape of the reflector in particular its facets, has been determined in complex measuring and calculating methods with regard to their shape and size.
- the generated by the facets of the reflector on Lichtunterzebene clearance profile or the beam shape generated by the reflector has substantially a butterfly shape.
- LED-based lighting fixtures are generated with the LED-based lighting fixture according to the invention almost homogeneous light spaces without dark areas; as without visible to the user Lichtwellenberge or valleys. This is particularly advantageous when homogeneously illuminated Lichtünzebenen are required.
- the LED-based lighting fixture according to the invention can comprise a single module as well as a plurality of modules for the purpose of a higher illuminance. Regardless of the number of interconnected modules corresponds to the resulting common beam shape or the total light space profile substantially a butterfly shape, which is apparent on the Lichtwendzebene. According to the invention remains in training of a LED-based lighting fixture with multiple modules, in case of failure of one of these modules, the total light space profile generated by the remaining modules unchanged.
- the optical system of the LED-based lighting body is preferably arranged within a base unit, which is designed to receive an LED carrier board with the LED arranged thereon and the reflector.
- the optical System comprise a on the back of the LED carrier board, respectively the side facing away from the LED side of the LED carrier board, arranged intoleit harsh.
- This heat conducting layer is preferably formed as a heat conducting foil in the form of a metal foil.
- the LED-based lighting fixture is designed for both indoor and outdoor lighting applications.
- the module constructed from the optical system and the light-transparent cover is gas-tightly encapsulated.
- modules are preferably arranged in a matrix-like manner in columns and rows to one another and connected to one another.
- the LED-based lighting body may comprise a plurality of sensors which are used to save energy, to adapt to different lighting conditions and to implement user wishes, for example for switching on and off.
- These sensors are designed as sensors for color control and / or for personal identification and / or brightness control and coupled to the controller or control. It has been found to be particularly advantageous if, for example, the illuminance and / or illumination color of the LED weather-dependent and user-dependent using these aforementioned sensors and the control / control are controllable.
- the LED of each module has contrast-altering properties, which significantly increases the performance and performance of the new LED-based lighting fixture.
- a suitable field of application of the LED-based lighting fixture is the street and court lighting, in which homogeneously illuminated Lichtünzebenen without dark spots not only desired, but are also required by law.
- its number of modules may be either variable or, if the number of modules is unchanged, the terminal voltage of the modules adapted accordingly, ie. H. increased or decreased. Furthermore, it is possible to control modules only in groups.
- a particularly preferred embodiment of such an LED-based lighting fixture for street lamps has an elliptical shape in cross section, wherein a plurality of elliptical elements placed one above the other together form the housing provided for receiving a plurality of modules.
- smaller and larger elliptical elements are arranged alternately in cross-section, wherein the larger in cross section and outwardly projecting elements are used for optimal heat dissipation.
- the preferably made of aluminum and the housing of the street lamp forming ellipses have only a very low construction height in a range between 7cm and 15 cm. This extremely flat design is achieved using the particularly space-saving reflection optics of the LED-based lighting fixture according to the invention.
- each of each of the modules comprises an optical system for receiving an LED mounting board having at least one LED mounted thereon, a reflector and a light-transparent cover,
- the light emitted by the LED is directed essentially to the light utility plane via the facets of the reflector
- ⁇ substantially double-T-shaped in cross-section bridge of the two-piece reflector generates a different from the light exit cone of the LED beam shape
- the reflector generated by the beam shape has a substantially butterfly shape or produced on the working plane of light, a butterfly-like design in cross-section clearance profile,
- the LED-based lighting fixture which was developed especially for street lighting, ensures a long service life and significantly reduces maintenance intervals.
- the illuminance of the LED-based lighting fixture can easily be varied using control / regulation by switching individual modules or groups of modules on or off or by adapting the supply voltage, and
- the LED-based lighting fixture can be mounted safely and easily by a user.
- Fig. 1 an exploded view of the LED-based
- Fig. 2 the reflector in a perspective view from above and
- Fig. 3 the reflector in a further perspective view, laterally.
- the LED lighting fixture 1 shows an exploded view of the LED-based lighting fixture 1 according to the invention.
- the LED lighting fixture 1 consists from several modules, but only a single module 2 is shown as an example.
- the module 2 consists of an optical system 3 and a light transparent cover 4 with a transmittance of about 70%, preferably an anti-reflective glass.
- the optical system 3 and its transparent cover 4 are fixedly connected to each other for the purpose of forming a gas-tight capsule using a gasket shown by a dashed line.
- the optical system 3 comprises a yellow LED 5 and a two-part reflector 6 with facets 6.1 according to FIGS.
- the essentially double-T-shaped cross-section of the reflector 6 is constructed here from a reflector carrier made of plastic with a reflective coating applied thereto.
- an LED support board 8 for receiving the LED 5 arranged thereon and the reflector 6 is further arranged.
- a heat-conducting layer provided for the purpose of better heat dissipation is placed in the form of a heat-conducting foil consisting of copper or aluminum.
- Figures 2 and 3 show one and the same reflector 6 according to the invention in a detailed perspective view from above and a lateral perspective view.
- the essentially cross-sectionally double-T-shaped bridge of the reflector 6 corresponds to an irregularly shaped, but symmetrically shaped body with two flanges 6.2 and a web 6.3.
- the length is about 50 mm, the width about 40 mm and the height only 21 mm.
- the effectively available reflection surface is 7.5 x 10.1 mm 2 .
- the symmetry axis of the reflector 6 extends orthogonally to the light axis in the direction of the longitudinal axis of the web 6.3.
- the two opposing flanges 6.2 and 6.3 extending between the flanges 6.3 comprise each of the LED 5 facing facets 6.1, in the illustrated example, the light exit cone of the LED 5 is completely spanned by the web 6.3 of the reflector 6.
- the individual facets 6.1 extend in such a way at a certain angle to one another that the light emitted by the LED 5 reaches the light utilization plane only indirectly via the facets 6.1 of the reflector 6.
- the web 6.3 of the reflector 6 tapers from its upper side to the bottom side facing the LED.
- the facets 6.1 are formed as an octagon of different sizes, and extend from the top of the reflector 6 to the wedge-shaped bottom of the reflector 6.
- a gap 7 is formed between the bottom of the reflector 6 and arranged on an LED support board 8 LED 5 between the bottom of the reflector 6 and arranged on an LED support board 8 LED 5 is a gap 7 is formed, so that the light emitted by the LED 5 light can illuminate unhindered all facets 6.1 of the reflector 6.
- a beam shape is generated which is different from the beam shape of the light exit cone of the LED 5.
- the generated on the light utility plane clearance profile or the beam shape substantially corresponds to a butterfly shape with almost homogeneous light space fields without dark spots.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09772011A EP2350523A2 (de) | 2008-07-03 | 2009-07-01 | Led-basierender beleuchtungskörper |
DE112009002140T DE112009002140A5 (de) | 2008-07-03 | 2009-07-01 | LED-basierender Beleuchtungskörper |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008031184.7 | 2008-07-03 | ||
DE102008031184A DE102008031184A1 (de) | 2008-07-03 | 2008-07-03 | LED-basierender Beleuchtungskörper |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2010000241A2 true WO2010000241A2 (de) | 2010-01-07 |
WO2010000241A3 WO2010000241A3 (de) | 2010-02-25 |
WO2010000241A4 WO2010000241A4 (de) | 2010-04-15 |
Family
ID=39869293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/000924 WO2010000241A2 (de) | 2008-07-03 | 2009-07-01 | Led-basierender beleuchtungskörper |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2350523A2 (de) |
DE (3) | DE102008031184A1 (de) |
WO (1) | WO2010000241A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9427545B2 (en) | 2009-11-20 | 2016-08-30 | Resmed Limited | Mask system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008058494A1 (de) | 2008-11-21 | 2010-05-27 | Neumüller Elektronik GmbH | Anschlussfertiger LED-Modulkörper |
DE102010007774A1 (de) | 2010-02-12 | 2011-08-18 | Siteco Beleuchtungstechnik GmbH, 83301 | Drei-Zonen Reflektor |
DE102010014099A1 (de) | 2010-04-07 | 2011-10-13 | Siteco Beleuchtungstechnik Gmbh | Leuchte mit Abdeckscheibe |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358816A (en) * | 1980-09-05 | 1982-11-09 | General Electric Company | Roadway luminaire |
EP1248033A2 (de) * | 2001-04-04 | 2002-10-09 | ERCO Leuchten GmbH | Reflektorleuchte, insbesondere Boden-,Decken-oder Wandeinbau-Reflektorleuchte |
DE202005009086U1 (de) * | 2005-06-10 | 2005-11-10 | Hsieh, Chin-Mu, Yungkang | LED-Schirm |
WO2006033032A1 (en) * | 2004-09-24 | 2006-03-30 | Koninklijke Philips Electronics N.V. | Illumination system |
US20070257272A1 (en) * | 2006-05-03 | 2007-11-08 | Hutchins Edward L | Multi-element LED lamp package |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10021725A1 (de) * | 2000-05-04 | 2001-11-15 | Osram Opto Semiconductors Gmbh | Facettierter Reflektor |
ATE324553T1 (de) * | 2001-06-08 | 2006-05-15 | Advanced Leds Ltd | Aussenleuchte |
-
2008
- 2008-07-03 DE DE102008031184A patent/DE102008031184A1/de not_active Withdrawn
- 2008-07-21 DE DE202008009797U patent/DE202008009797U1/de not_active Expired - Lifetime
-
2009
- 2009-07-01 WO PCT/DE2009/000924 patent/WO2010000241A2/de active Application Filing
- 2009-07-01 EP EP09772011A patent/EP2350523A2/de not_active Withdrawn
- 2009-07-01 DE DE112009002140T patent/DE112009002140A5/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358816A (en) * | 1980-09-05 | 1982-11-09 | General Electric Company | Roadway luminaire |
EP1248033A2 (de) * | 2001-04-04 | 2002-10-09 | ERCO Leuchten GmbH | Reflektorleuchte, insbesondere Boden-,Decken-oder Wandeinbau-Reflektorleuchte |
WO2006033032A1 (en) * | 2004-09-24 | 2006-03-30 | Koninklijke Philips Electronics N.V. | Illumination system |
DE202005009086U1 (de) * | 2005-06-10 | 2005-11-10 | Hsieh, Chin-Mu, Yungkang | LED-Schirm |
US20070257272A1 (en) * | 2006-05-03 | 2007-11-08 | Hutchins Edward L | Multi-element LED lamp package |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9427545B2 (en) | 2009-11-20 | 2016-08-30 | Resmed Limited | Mask system |
Also Published As
Publication number | Publication date |
---|---|
DE102008031184A1 (de) | 2010-01-14 |
WO2010000241A3 (de) | 2010-02-25 |
DE202008009797U1 (de) | 2008-10-16 |
WO2010000241A4 (de) | 2010-04-15 |
DE112009002140A5 (de) | 2011-06-01 |
EP2350523A2 (de) | 2011-08-03 |
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