EP3132188A1 - Beleuchtungsvorrichtung - Google Patents
BeleuchtungsvorrichtungInfo
- Publication number
- EP3132188A1 EP3132188A1 EP15725984.7A EP15725984A EP3132188A1 EP 3132188 A1 EP3132188 A1 EP 3132188A1 EP 15725984 A EP15725984 A EP 15725984A EP 3132188 A1 EP3132188 A1 EP 3132188A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lighting device
- cover
- housing
- light
- leds
- 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
- 229920003023 plastic Polymers 0.000 claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 239000012780 transparent material Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000009826 distribution Methods 0.000 description 9
- 230000004313 glare Effects 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000002985 plastic film Substances 0.000 description 5
- 229920006255 plastic film Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
-
- 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
- F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/06—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using crossed laminae or strips, e.g. grid-shaped louvers; using lattices or honeycombs
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
-
- 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
-
- 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
- F21V7/06—Optical design with parabolic curvature
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
-
- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Definitions
- the invention relates to a lighting device comprising a housing,
- Illuminant is disposed within the housing and the cover is held on the housing.
- LEDs light-emitting diodes
- LEDs Due to a small radiating surface and the punctual, strongly concentrated light emission, the human eye is heavily loaded.
- the construction and concentrated emission of light in LEDs also means that special measures are often required to set a suitable light emission.
- VDU workplaces require that both the direct glare of the light exit opening and the reflected glare on the workstation and the intensity on the screen must be below certain standard-defined values.
- mechanical diaphragms are often used, so that although a desired glare is achieved, but ultimately is also dispensed with a part of the light provided or a luminaire efficiency decreases.
- the object of the invention is to provide a lighting device of the type mentioned, with which the above disadvantages can be eliminated.
- the at least one light-emitting means is designed as an LED and the cover comprises at least one planar element, in particular a plastic element, which changes an emission characteristic of the light emitted by the at least one LED.
- Luminous element of one or more LEDs with reflective zones on the inside of a housing and a cover that the lighting device leaving light intensity is selectively adjustable. Reflective zones on an inside of a housing are known per se. However, it is surprising that this leads to photometric advantages in connection with the cover.
- Lighting conditions are created. This way, not only an individual light distribution can be realized, but also a glare-free achievement, without the need for additional elements. The light can therefore be fully exploited without having to accept disadvantageous restrictions.
- the intended planar element is preferably formed on at least one surface having a structure with elevations and depressions whose dimensions are greater than a wavelength of the emitted light.
- it may be a sheet-like plastic element having on the surface a zig-zag structure in the form of a plurality of triangular in cross-section grooves.
- the individual grooves which may for example be imprinted in a film with a roller or an embossing element, act like prisms. Is the cover only from the flat
- Plastic element this is usually arranged so that the grooves or prisms are located on an outer side.
- the inside is then usually smooth and partially reflective. Due to the prisms it comes in combination with the reflective acting zones, the z. B. in a plastic material by special
- Manufacturing techniques are introduced to multiple reflections, so that the originally narrow and highly concentrated light cone of the light emission of an LED can be distributed homogeneously over the entire surface of the cover. It is also possible that the cover with the prisms is arranged inwards. The prisms can have different structures depending on the desired lighting situation.
- the planar element which can be formed from glass or a transparent plastic, is formed in regions with non-transparent regions whose dimensions are greater than the wavelength of the emitted light.
- the non-transparent regions can be arranged within the planar element and / or on this.
- the non-transparent regions are arranged in a regular pattern.
- particles can be incorporated and / or attached to or in the cover, it being possible for the particles to have an inhomogeneous distribution within the film and / or on the latter.
- the particles have an average dimension that is greater than the average wavelength of the light.
- the particles can have a certain color.
- the homogenized light can be output exactly where it is required.
- the light emission can be geometrically structured.
- the non-transparent regions may be formed from a reflective material, for example silver or aluminum.
- the individual areas then act as additional reflectors, with the reflective zones and the prism structure
- non-transparent regions are formed of a non-reflective material.
- the choice of material as well as the location and size of the non-transparent areas can be used to predict the light emerging from the lighting device in a predetermined manner
- the cover is generally formed relatively thin and usually has a thickness of less than 1 mm, preferably less than 500 ⁇ , on. Corresponding covers can then be present as films.
- the cover may also be flexible or flexible when manufactured from a plastic.
- the films are usually colorless, but can also be colored depending on the purpose.
- a plurality of lighting means are provided, wherein the lighting means are each formed as LEDs and wherein the LEDs are arranged in a tube.
- the tube may be fixed inside the housing.
- the housing is formed in cross-section with a semicircular receptacle for a lighting device, which connect to lateral legs with parabolic course.
- the legs can hereby releasably receive the cover. This can be done, for example, when the legs are formed at the end with horizontal projections for receiving the cover.
- the cover can then be inserted as needed or can be changed to another cover when a lighting pattern or a light distribution to be changed.
- the reflective zones on or within the housing can be realized in various ways. It is possible that a reflective insert is arranged in the housing. It is expedient, however, if the housing is already designed to be self-reflective, because then additional components can be omitted.
- the housing inside with a reflective material be coated. It is even better if the housing is made of aluminum, because then can be dispensed with a coating. In principle, it is expedient for a reflection on an inner side of the housing to be more than 90%, in particular more than 95%.
- FIG. 1 shows a lighting device in cross-section
- Fig. 2 is a cover in cross section
- Figures 3 and 4 are diagrams for the distribution of light in a lighting device with a cover made of glass and a cover made of a plastic film.
- a lighting device 1 according to the invention is shown in cross section.
- the lighting device 1 has a housing 2.
- the housing 2 can be
- the housing is formed of aluminum or an aluminum alloy.
- the housing 2 is then on the one hand lightweight and on the other hand can be formed high gloss on the inside.
- the housing 2 may also be formed with one or more openings, for. B. when light is to be thrown to a ceiling or other special
- Lighting situations are desired. It may be a variety of smaller openings, but also a ceiling-side slot or the like.
- the housing 2 is subdivided into a plurality of sections, namely a head-side receptacle 21 and lateral legs 22 which adjoin the head-side receptacle 21. Connect the head end 21.
- the head-side receptacle 21 is formed semicircular in cross section.
- a radius of the receptacle 21 is usually measured by the diameter of a male tube with a plurality of LEDs. The same applies if a board with one or more LEDs is provided; in this case, the receptacle 21 is adapted to the board accordingly.
- the legs 22, however, are formed approximately parabolic in cross section. At the foot ends of the Legs 22 extensions 23 are provided, which allow a cover 5 to be inserted.
- the projections 23 are integral with the legs 22 and these in turn formed integrally with the head-side receptacle 21, so that the housing 2 can be manufactured from a single area. Due to the highly reflective inner regions 22 highly reflective zones 3 are given in particular on the inside of the housing 2 in the region of the legs.
- a tube is accommodated with a multiplicity of light sources 4, which are designed as LEDs.
- the LEDs need not be arranged in a tube, but may also be arranged on a circuit board or other suitable base, wherein one or more LEDs may be provided.
- the legs 22 are independent of the type of arrangement of the LEDs (tube, board, etc.) in the orientation and curvature tuned so that a minimum of 93%, preferably at least 95%, in particular more than 97% of that of the or the LEDs directly radiated light ultimately strikes the one or more LEDs opposite upper side of the cover 5. As a rule, no further elements are arranged between the one or more LEDs and the cover 5.
- the cover 5 is formed as a planar element, which usually extends over an entire length of the lighting device 1 and the housing 2 closes downwards.
- the cover 5 can in principle be formed from any transparent material. In question is glass or a transparent plastic such as polycarbonate or polymethylmethacrylate. Transparent plastics are preferred because with these the cover 5 can be easily adapted for special applications. If the cover 5 is formed from an at least partially transparent plastic, a usual thickness or thickness is 200 ⁇ m to 800 ⁇ m. It is also possible that the cover 5 is formed of a plurality of films made of plastic, which are connected to each other or may be spaced apart from each other. The cover 5 comes in conjunction with the reflective zones 3 of the housing 2 and the emission of the one or more bulbs 4 a crucial
- the cover 5 is structured specifically. This structuring may in particular consist in that a surface of the cover 5 with recesses and elevations is trained. A corresponding cover 5 is shown in cross section in Fig. 2. In this case, the cover 5 is positioned in the lighting device 1 so that the zig-zag structure is directed downward.
- the zig-zag structure forms a structure which causes the cover 5 or plastic film on one side to act like a multiplicity of prisms, wherein the position, size, spacings and geometrical
- FIGS. 3 and 4 show over the exit angle a light intensity for a lighting device 1, wherein the cover 5 is formed of a conventional glass, which has no structuring and in particular does not change a radiation characteristic of the incident light. As can be seen, the light intensity is highest in the range around 0 ° and falls off to the side.
- Fig. 4 measurement data for the same lighting device 1 are shown, wherein the
- Cover 5 made of glass is replaced by a 300 ⁇ thick plastic film made of polycarbonate with the mentioned zig-zag structure.
- the use of the film with the structuring changes the light intensity over the angle. Depending on the measuring angle, the light intensity is significantly higher in the range of about ⁇ 20 ° to ⁇ 50 ° and, above all, largely constant. To the side, the light intensity drops sharply. It follows that by the structuring of the film on the surface, for. B. by embossing or rolling, the light intensity in the center homogenized at a high level can be bundled. On the other hand, where glare control would normally have to be used, only low light intensities can be detected, so that a separate glare reduction is unnecessary.
- the planar element or optionally a film partially with not transparent areas is formed.
- the non-transparent regions may be formed of materials that are highly reflective, such as silver or
- Corresponding structures can be easily applied by a printing process, in particular when using a film or cover 5 made of plastic. It is also possible to integrate corresponding structures within the cover 5 in the production of a film or cover 5. In addition to highly reflective
- Areas may be provided for areas or alternatively to these, which are formed from non-reflective materials, which depends on the particular application.
- An embodiment of the zig-zag structure is not limited to the specific illustration in FIG. 2, but instead also includes, for example, a corrugated shape that forms itself
- FIGS. 5 to 12 show several examples of a lighting device 1 with partially non-transparent regions. Furthermore, measuring curves are shown in which light intensities can be seen. Non-transparent areas are formed of small silver reflectors which are printed on the foil. We can see from the traces, can be changed arbitrarily by the vote of the non-transparent areas in which the light of the LEDs on the highly reflective zones 3, before this can emerge after repeated reflection in the transparent areas.
- the cover 5 may be formed with integral lenses, for. B. by targeted local variation of the properties such as the refractive index. For example, a
- Cover 5 are created in 3-D printing from a first plastic, wherein the lenses are printed by a second plastic other composition. Holographic techniques may also be used to form the cover 5, optionally also in combination with other techniques described above.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50233/2014A AT515640A1 (de) | 2014-03-31 | 2014-03-31 | Beleuchtungsvorrichtung |
PCT/AT2015/050085 WO2015149102A1 (de) | 2014-03-31 | 2015-03-31 | Beleuchtungsvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3132188A1 true EP3132188A1 (de) | 2017-02-22 |
EP3132188B1 EP3132188B1 (de) | 2021-02-17 |
Family
ID=53275942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15725984.7A Active EP3132188B1 (de) | 2014-03-31 | 2015-03-31 | Beleuchtungsvorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170108193A1 (de) |
EP (1) | EP3132188B1 (de) |
AT (1) | AT515640A1 (de) |
WO (1) | WO2015149102A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3419836A1 (de) * | 2016-02-26 | 2019-01-02 | Philips Lighting Holding B.V. | Beleuchtungsvorrichtung mit glitzereffekt |
EP3426974B1 (de) * | 2016-03-11 | 2021-02-17 | Signify Holding B.V. | Funkelnde lichtquelle |
AT520942B1 (de) * | 2018-03-15 | 2019-09-15 | Werner Faerber | Verfahren zur Herstellung einer Lichtlenkfolie und damit hergestellte Folie |
CN114981588B (zh) | 2019-06-27 | 2024-01-30 | 亮锐有限责任公司 | 具有窄发光区域的照明设备 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19736381A1 (de) * | 1997-08-21 | 1999-02-25 | Uwe Unterwasser Electric Gmbh | Bestrahlungsgerät |
DE19745844C2 (de) * | 1997-10-16 | 1999-12-16 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Elektrische Leuchte mit einem Reflektor und einem Refraktorelement |
CN1220754C (zh) * | 1999-10-19 | 2005-09-28 | 罗利克有限公司 | 拓扑结构化的聚合物涂层 |
US6871983B2 (en) * | 2001-10-25 | 2005-03-29 | Tir Systems Ltd. | Solid state continuous sealed clean room light fixture |
EP1447618A1 (de) * | 2003-02-17 | 2004-08-18 | Optilux AG | Decken- und Stehleuchte |
US6769777B1 (en) * | 2003-08-20 | 2004-08-03 | Honeywell International Inc. | Multi-aperture optical dimming system |
US6997576B1 (en) * | 2003-10-08 | 2006-02-14 | Ledtronics, Inc. | Light-emitting diode lamp and light fixture including same |
ITTO20030801A1 (it) * | 2003-10-14 | 2005-04-15 | Fiat Ricerche | Perfezionamenti negli apparecchi di illuminazione. |
DE102004012654A1 (de) * | 2004-03-16 | 2005-10-06 | Schefenacker Vision Systems Germany Gmbh & Co. Kg | Leuchte mit einer die Abstrahlung beeinflussenden optischen Struktur |
DE202007001148U1 (de) * | 2007-01-19 | 2007-03-29 | Licht Design Management Eckhard Hofmann | Außenleuchte |
KR100974078B1 (ko) * | 2007-10-31 | 2010-08-04 | 제일모직주식회사 | 전면에 광학부재를 구비하는 광학시트와 비드가 첨가된광학시트를 포함하는 확산판 |
DE102007062523A1 (de) * | 2007-12-20 | 2009-07-16 | Erco Gmbh | Prismenscheibe und Leuchte |
DE102008013049A1 (de) * | 2008-03-06 | 2009-09-24 | Mbb International Group Ag | Leuchte, insbesondere zur Erzielung eines tageslichtähnlichen Lichtspektrums |
US20090296024A1 (en) * | 2008-03-18 | 2009-12-03 | Sumitomo Chemical Company, Limited | Light diffuser plate with primer layer, process for producing the same, laminated optical member, surface light source apparatus and liquid crystal display |
WO2009116012A2 (en) * | 2008-03-19 | 2009-09-24 | I2Ic Corporation | A directional linear light source |
US8556453B1 (en) * | 2008-06-17 | 2013-10-15 | Genlyte Thomas Group Llc | Splay frame luminaire |
IT1391091B1 (it) * | 2008-07-15 | 2011-11-18 | Fraen Corp Srl | Dispositivo di illuminazione a fascio luminoso regolabile, in particolare per una torcia elettrica |
EP2480918B8 (de) * | 2009-09-21 | 2016-09-21 | Philips Lighting Holding B.V. | Lich temittierende vorrichtung mit einer lichtleiterplatte mit reflektierender abschirmung mit verringerter blendung |
EP2480816A1 (de) * | 2009-09-25 | 2012-08-01 | Cree, Inc. | Beleuchtungsvorrichtung mit geringem blendeffekt und hoher lichtstärkenuniformität |
AT508735B1 (de) | 2009-11-04 | 2012-08-15 | Werner Faerber | Drehbarer reflektor mit variablen lichtkegeln |
TWI392933B (zh) * | 2009-12-31 | 2013-04-11 | Au Optronics Corp | 具星芒形擴散結構之擴散板及使用其之背光模組 |
TW201128136A (en) * | 2010-02-12 | 2011-08-16 | Ledtech Electronics Corp | Light emitting diode lamp and lampshade |
DE102011013370A1 (de) * | 2011-03-09 | 2012-09-13 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil |
TWI418737B (zh) * | 2011-03-22 | 2013-12-11 | Lextar Electronics Corp | 燈罩及燈具結構 |
WO2013046081A1 (en) * | 2011-09-27 | 2013-04-04 | Koninklijke Philips Electronics N.V. | A lighting system for emitting a shaped light beam and a luminaire |
US8888316B2 (en) * | 2011-12-20 | 2014-11-18 | Innovative Lighting, Inc. | Lenticular LED light source replacement for fluorescent in troffer |
-
2014
- 2014-03-31 AT ATA50233/2014A patent/AT515640A1/de unknown
-
2015
- 2015-03-31 US US15/300,644 patent/US20170108193A1/en not_active Abandoned
- 2015-03-31 EP EP15725984.7A patent/EP3132188B1/de active Active
- 2015-03-31 WO PCT/AT2015/050085 patent/WO2015149102A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20170108193A1 (en) | 2017-04-20 |
WO2015149102A1 (de) | 2015-10-08 |
AT515640A1 (de) | 2015-10-15 |
EP3132188B1 (de) | 2021-02-17 |
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