EP3030829A1 - Leuchte mit einem gekrümmten prismenstruktur-element - Google Patents
Leuchte mit einem gekrümmten prismenstruktur-elementInfo
- Publication number
- EP3030829A1 EP3030829A1 EP14741886.7A EP14741886A EP3030829A1 EP 3030829 A1 EP3030829 A1 EP 3030829A1 EP 14741886 A EP14741886 A EP 14741886A EP 3030829 A1 EP3030829 A1 EP 3030829A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- refractive element
- luminaire according
- luminaire
- reflector
- 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
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
-
- 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
- F21V5/02—Refractors for light sources of prismatic shape
-
- 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 luminaire with a light source, a reflector and a refractive element.
- the lens is optically arranged between the light source and the reflector.
- the lens forms very restrictive framework conditions with respect to the design of the shape and size of the reflector.
- the invention has for its object to provide a corresponding improved luminaire.
- the luminaire should have improved possibilities with regard to the design of the optical properties with a total of small construction.
- a luminaire which has a light source for generating a light, a reflector for influencing the light and a
- the refractive element for further influencing the light.
- the refractive element is curved and has a surface provided with a prism structure.
- the prism structure is a microprism structure.
- Miroprism structure can be understood in particular a structure having a structural height of less than 1 mm.
- the luminaire is designed such that the surface forms a light exit surface of the refractive element for the light generated by the light source.
- the surface is preferably concavely curved, at least to a first approximation.
- a light exit region of the luminaire is formed by an edge of the reflector, which has a diameter.
- a particularly advantageous shape of the surface or the light exit surface can be achieved if, at least to a first approximation, this has a curvature which is determined by a
- Radius of curvature is greater than half the diameter of the light exit region and less than twice the diameter of the
- the refractive element further comprises a further surface, wherein the further surface forms a Lichteintrittsfizze of the refractive element for the light.
- the further surface is convexly curved, at least to a first approximation.
- the refractive element is substantially in the shape of a curved disk or lens, being shaped to have a thickness between the surface and the further surface that is less than 100%, preferably less than 50%, more preferably less than 30%.
- the refractive element can be made in this way "thin” and thus space-saving. Manufacturing technology advantageous the refractive element is designed as an injection molded part. In this way, in particular the shape of the refractive element can be adapted particularly well to the shape of the reflector.
- the refractive element is disposed directly adjacent to a reflective inner wall portion of the reflector. In this way, a particularly direct optical interaction between the refractive element on the one hand and the reflector on the other hand can be achieved.
- the light source comprises at least one LED. This is particularly advantageous with respect to the size of the lamp and the life and efficiency of the light source.
- a plane is defined by the edge of the reflector, wherein the
- Light source has a board which is arranged in a further plane aligned and wherein the further plane with the first-mentioned plane encloses an angle which is between 40 ° and 80 °, preferably between 50 ° and 70 °.
- the lamp is particularly well suited for the "oblique" delivery of light.
- the lamp is suitable if it is designed as a wall washer., Particularly advantageously it can be designed as recessed luminaire.
- FIG. 1 is a perspective sketch of a lamp according to the invention
- Fig. 2 is a cross-sectional sketch through the lamp and a cut, perspective sketch for relative arrangement between the refractive element and the reflector.
- Fig. 1 shows a perspective sketch of a lamp according to the invention.
- the lamp is designed as a "wall washer” or “Wallwasher”. Such a lamp is intended to illuminate a wall area. It may, for example, be intended for operation on or in one
- the luminaire can accordingly be designed as a surface-mounted luminaire or, as in the example shown here, as a recessed luminaire.
- Fig. 2 shows a cross section through the lamp.
- the luminaire can be provided or designed to be held for operation via a mounting ring 4 in an installation opening of a wall element 5, or a ceiling element.
- the luminaire has a light source 1 for generating a light.
- the light source 1 comprises at least one LED.
- the at least one LED can be provided arranged on a circuit board 6.
- the board 6 is plate-shaped and has a surface on which the at least one LED is arranged, wherein the surface of a
- the lamp comprises a reflector 2 for influencing, in particular for influencing the directional behavior of the light.
- the reflector 2 has an edge 7, through which a light exit region of the lamp with a
- Diameter D is formed.
- the light exit area generally need not be circular.
- diameter is in the case of a non-circular
- Light exit region denotes the largest extension of the light exit area.
- the edge 7 of the reflector 2 is designed to extend in a plane E.
- the plate-shaped plate 6 is arranged aligned in a further plane E ', said further plane E' with the first-mentioned plane E includes an angle a, preferably between 40 ° and 80 °, for example between 50 ° and 70 °.
- the angle may be between 58 ° and 62 °.
- the lamp has a refractive element 3 for further influencing the light.
- the refractive element 3 is curved in shape and has a surface 32 provided with a prismatic structure. It is preferably provided that the prism structure extends over the entire surface 32.
- the prism structure is preferably a microprism structure.
- the refractive element 3 is preferably designed so that it serves, in particular by an action of the prism structure, to glare the light generated by the light source 1.
- the surface 32 of the refractive element 3 preferably forms a light exit surface of the refractive element 3 for the light generated by the light source 1.
- the light generated by the light source 1 can be directed, particularly at particularly shallow angles, to a wall area to be illuminated in such a way that it is illuminated uniformly over its entire height.
- FIG. 3 shows a sectioned, perspective sketch which exemplifies the relative arrangement between the reflector 2 and the refractive element 3
- Light exit surface is preferably formed concavely curved at least in first approximation.
- a first approximation is hereby expressed in particular that the shape of the surface 32 is described in its entirety, ie in any case neglecting the prismatic structure formed on the surface 32.
- the shape of the refractive element 3, in particular the shape of the surface 32 or the light exit surface is matched to the design of the reflector 2.
- the surface 32 at least to a first approximation has a curvature by a
- Curvature radius is described, which is greater than half the diameter D of the light exit region and less than twice the diameter of the
- the surface 32 has said curvature in a sectional plane which is oriented both normal to the plane E and normal to the further plane E;
- this cutting plane corresponds to the plane of the drawing of FIG. 2.
- the surface 32 may further be shaped to be viewed in a further section normal to the plane E and normal to said cutting plane, not curved, or has a lower curvature.
- the refractive element 3 also has a further surface 31 which forms a light entry surface of the refractive element 3 for the light generated by the light source.
- This further surface 31 is preferably convexly curved, at least to a first approximation.
- the refractive element 3 may have the shape of a curved disk or a lens, which over its entire extension in the
- the refractive element 3 may be shaped such that it is between the surface 32 and the further surface 31 - or between the light exit surface and the
- Light entry surface - a thickness d which varies by less than 100%, preferably less than 50%, more preferably by less than 30%>.
- the refractive element 3 is disposed directly adjacent to a reflective inner wall portion 21 of the reflector 2. In this way, an optical interaction of the refractive element 3 with the reflector 2 can be made particularly direct and thus effective.
- the design is such that the optical element 3 has an edge which is generally adjacent to the inner wall region 21 of the reflector 2, as shown schematically in FIG. 1.
- the refractive element 3 is preferably designed as an injection molded part. In this way, the shape of the refractive element 3 can be adapted particularly well to the shape of the reflector 2, in particular to the shape of the reflective inner wall region 21.
- the production by spraying is also more advantageous, in particular less expensive than a production by milling.
- the reflector 2 consists of a metal and the refractive element 3 made of a plastic.
- the refractive element 3 can be molded, in particular at the other
- the refractive element 3 may be designed to have a magnification factor of between 5 and 20, for example about 10, with respect to the light generated by the light source 1.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202013103270.0U DE202013103270U1 (de) | 2013-07-22 | 2013-07-22 | Leuchte mit einem gekrümmten Prismenstruktur-Element |
| PCT/EP2014/065706 WO2015011133A1 (de) | 2013-07-22 | 2014-07-22 | Leuchte mit einem gekrümmten prismenstruktur-element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3030829A1 true EP3030829A1 (de) | 2016-06-15 |
| EP3030829B1 EP3030829B1 (de) | 2018-03-28 |
Family
ID=51212851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14741886.7A Active EP3030829B1 (de) | 2013-07-22 | 2014-07-22 | Leuchte mit einem gekrümmten prismenstruktur-element |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160153629A1 (de) |
| EP (1) | EP3030829B1 (de) |
| CN (1) | CN105531530A (de) |
| DE (1) | DE202013103270U1 (de) |
| WO (1) | WO2015011133A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP1523888S (de) * | 2014-08-28 | 2015-05-18 | ||
| DE202016107411U1 (de) | 2016-12-28 | 2018-04-03 | Zumtobel Lighting Gmbh | Refraktive Optik mit Freiformkörper |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE24372E (en) * | 1957-10-08 | Direct lighting luminaires | ||
| US1350295A (en) * | 1919-04-18 | 1920-08-24 | Kirby Champeau Co Inc | Illuminating means |
| US2756326A (en) * | 1952-02-01 | 1956-07-24 | Holophane Co Inc | Direct lighting luminaires |
| US2887568A (en) * | 1957-02-26 | 1959-05-19 | Holophane Co Inc | Ceiling luminaire |
| DE8808702U1 (de) * | 1988-07-04 | 1988-09-01 | Willing, Achim, Dr.-Ing., 8604 Scheßlitz | Leuchte mit langgestreckter Lichtquelle |
| DE19846726A1 (de) * | 1998-10-12 | 2000-04-20 | Erco Leuchten | Beleuchtungsvorrichtung zur Anbringung an einer ersten, eine Lichtaustrittsebene definierenden Wand |
| DE10011516A1 (de) * | 2000-03-09 | 2001-09-20 | Siteco Beleuchtungstech Gmbh | Leuchtensystem |
| US6481873B1 (en) * | 2001-07-13 | 2002-11-19 | Whelen Engineering Company, Inc. | Lens for a warning light |
| EP1496308B1 (de) * | 2003-07-10 | 2011-08-24 | Siteco Beleuchtungstechnik GmbH | Innenraumleuchte mit einem Entblendungskörper |
| WO2005061956A1 (de) * | 2003-12-22 | 2005-07-07 | Schott Ag | Optische anordnung mit stufenlinse |
| US6994456B1 (en) * | 2004-04-28 | 2006-02-07 | Kurt Versen Company | Wall-wash lighting |
| US7229192B2 (en) * | 2004-06-18 | 2007-06-12 | Acuity Brands, Inc. | Light fixture and lens assembly for same |
| DE102005022054C5 (de) * | 2005-05-09 | 2013-01-17 | Erco Gmbh | Leuchte |
| DE202005007545U1 (de) * | 2005-05-09 | 2006-09-21 | Erco Leuchten Gmbh | Leuchte |
| DE102006027207A1 (de) * | 2006-02-01 | 2007-08-02 | Zumtobel Lighting Gmbh | Leuchte mit einem kastenförmigen Leuchtengehäuse und einem Lichtaustrittselement |
| TWI524033B (zh) * | 2006-11-30 | 2016-03-01 | 克里公司 | 照明設備、照明裝置及用於其之元件 |
| US20110310625A1 (en) * | 2010-06-16 | 2011-12-22 | Abl Ip Holding Llc | Light Fixtures Comprising Organic Light Emitting Diodes |
| KR101208174B1 (ko) * | 2010-07-28 | 2012-12-04 | 엘지이노텍 주식회사 | 광학시트 및 이를 포함하는 발광소자패키지 |
| DE102011079404A1 (de) | 2011-07-19 | 2013-01-24 | Zumtobel Lighting Gmbh | Anordnung zur Lichtabgabe |
| JP6198738B2 (ja) * | 2011-10-11 | 2017-09-20 | フィリップス ライティング ホールディング ビー ヴィ | 照明装置 |
| JP6061479B2 (ja) * | 2012-03-12 | 2017-01-18 | ミネベア株式会社 | 照明装置 |
| US9134006B2 (en) * | 2012-10-22 | 2015-09-15 | Cree, Inc. | Beam shaping lens and LED lighting system using same |
-
2013
- 2013-07-22 DE DE202013103270.0U patent/DE202013103270U1/de not_active Expired - Lifetime
-
2014
- 2014-07-22 WO PCT/EP2014/065706 patent/WO2015011133A1/de not_active Ceased
- 2014-07-22 EP EP14741886.7A patent/EP3030829B1/de active Active
- 2014-07-22 US US14/905,795 patent/US20160153629A1/en not_active Abandoned
- 2014-07-22 CN CN201480040307.2A patent/CN105531530A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN105531530A (zh) | 2016-04-27 |
| US20160153629A1 (en) | 2016-06-02 |
| DE202013103270U1 (de) | 2014-10-23 |
| WO2015011133A1 (de) | 2015-01-29 |
| EP3030829B1 (de) | 2018-03-28 |
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