EP2912651A1 - Light emission element for a luminaire, and luminaire comprising a light emission element - Google Patents
Light emission element for a luminaire, and luminaire comprising a light emission elementInfo
- Publication number
- EP2912651A1 EP2912651A1 EP13788705.5A EP13788705A EP2912651A1 EP 2912651 A1 EP2912651 A1 EP 2912651A1 EP 13788705 A EP13788705 A EP 13788705A EP 2912651 A1 EP2912651 A1 EP 2912651A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- lamp
- light emission
- emitting element
- designed
- 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
- 239000000463 material Substances 0.000 claims abstract description 14
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/14—Arrangements of reflectors therein
- G09F2013/142—Arrangements of reflectors therein multiple reflectors
Definitions
- the invention relates to a plate-like light-emitting element for a lamp and a lamp with such a light-emitting element.
- a luminaire with a light-emitting element is known from DE 10 2010 063 272 AI.
- This lamp has a trough-shaped luminaire housing, through which a light-emitting opening is formed, which is covered by the light-emitting element.
- the light-emitting element has a planar light-emitting surface, by which a surface normal is determined.
- the light-emitting element has a latching element which - in a projection along the
- the light-emitting element can be supported on the luminaire housing without the need for a frame element.
- the inner surface of the light-emitting element facing towards the interior of the luminaire is provided with a structure for scattering or equalizing the light. Narrow side surfaces of the light-emitting element, which are also visible from the outside when viewing the luminaire and which are aligned with the adjoining ones, adjoin the light-emitting surface, separated from the latter by edge-side edges
- a reflector element is arranged, which extends in a funnel shape towards the edge region of the light emitting element. As a result, it is achieved that the light emission surface appears well illuminated up to its edges. However, the light output is over the narrow side surfaces of the
- the invention has for its object to provide an improved light-emitting element, in particular a light-emitting element, which also has corresponding Side surface areas allows a more homogeneous appearing light output.
- a luminaire is to be specified with a corresponding light-emitting element.
- a plate-like light-emitting element for a luminaire which has a first partial area and a second partial area, wherein - viewed in an intended light emission direction - the first partial area is arranged following the second partial area, wherein the first partial area is designed to be a light-emitting area to form the lamp and the second
- Part of the area is designed to form no outer surface region of the lamp and wherein the first portion of an optically clear material and the second portion with a, consisting of an optically diffuse material portion directly adjacent to the first portion.
- the light-emitting element is designed such that at least one recess for holding the light-emitting element is formed on an outer circumference of the second portion, which extends up to the light-emitting surface.
- the design is such that the at least one recess and the light emitting surface form an edge which encloses an angle which is between 100 ° and 170 °, preferably between 120 ° and 150 °, can on the one hand a particularly good illumination of the light emitting surface achieve to the limit to the outer wall surface area and on the other hand, a secure mounting of the light emitting element to the lamp housing.
- Manufacturing technology advantageous is the at least one recess made by a milling,
- the first portion of the light emitting element is cuboid shaped.
- the light-emitting element preferably consists of PMMA
- Polymethyl methacrylate or acrylic.
- it is formed from a multilayered, in particular produced by a casting process, composite panel material.
- a particularly advantageous appearance of the light emitting element or the lamp can be achieved if the Lichtabgabefiambae is polished. A particularly even light emission is possible when the
- Light emitting element is designed such that between the first portion and the portion of the second portion of an interface is formed, which extends in a plane.
- a luminaire which has a light-emitting element according to the invention, and a luminaire housing, on which the light-emitting element is held.
- the lamp is designed such that the lamp housing extends to the light emitting surface.
- the Lichtabgabefikiee is designed to extend in a further plane, wherein the lamp housing has an outer Wandfiamba Suite, which extends to the Lichtabgabefiambae down and which is also designed extending in the other plane. This makes it possible to achieve a particularly high-quality appearance of the lamp.
- a particularly secure or reliable mounting of the light-emitting element to the luminaire housing is made possible if the luminaire housing has at least one holding element which is suitable for holding the light-emitting element to the luminaire Luminaire housing is arranged engaging in the at least one recess of the light emitting element.
- the lamp also has a light source for emitting a light, wherein the lamp is designed such that the emitted light from the light source radiates into the second portion of the light emitting element and leaves the luminaire in the further sequence over the first portion of the light emitting element.
- a particularly homogeneous backlight of the lamp is designed such that the emitted light from the light source radiates into the second portion of the light emitting element and leaves the luminaire in the further sequence over the first portion of the light emitting element.
- the lamp also has a Refiektorelement with two Refiektorfizzen that are formed and arranged in the lamp housing that they extend to the light emitting element to extend diverging.
- the two reflector surfaces are designed white, especially painted white.
- Fig. 1 is a sketch of a perspective section of an inventive
- Fig. 2 is a cross-sectional sketch through the lamp housing and the
- FIG. 3 is a sketch of the detail "A" of Fig. 2,
- Fig. 5 shows a corresponding longitudinal section
- a corresponding supervision and 7 shows a further cross-sectional sketch through the luminaire housing and the light-emitting element, with light source and reflector element.
- FIG. 1 shows a perspective sketch of a luminaire 2 according to the invention with a light-emitting element 1 according to the invention.
- the luminaire 2 has a luminaire housing 10 which, in the example shown, is made oblong, so that it extends along a longitudinal axis L. In Fig. 1, only a portion of the lamp housing 10 along the longitudinal axis L is sketched.
- the luminaire housing 10 may be formed in a profile shape, so that it is in a
- Cross-section normal to the longitudinal axis L has a U-shape and thus a first U-leg 101 and a second U-leg 102 are formed.
- a light emitting area 19 of the lamp 10 In the area between the free ends of the two U-legs 101, 102 is then preferably formed by the lamp housing 10, a light emitting area 19 of the lamp 10.
- the lamp housing for example, be trough-shaped, in particular cuboid, so that through the edge of the tub a corresponding
- Light emitting area 19 in particular in the form of a light emitting opening is formed.
- the lamp housing 10 may be made of aluminum.
- Luminaire housing 10 may be designed in particular as an extruded profile.
- the light-emitting element 1 is designed as a whole plate-like or plate-shaped and held on the lamp housing 10 that it is in the light emitting area 19, or that it covers the light emitting opening. In the example shown extends in a cross section normal to the longitudinal axis L considered the
- Light emitting element 1 accordingly between the two free ends of the two U-legs 101, 102.
- the light-emitting element 1 is accordingly preferably also elongated and shaped profiled, which - as the lamp housing 10 - parallel to the longitudinal axis L extends.
- a light source 15 for example an LED light source, for emitting a light is arranged in the luminaire housing 10, the luminaire 2 being such is designed such that the light of the light source 15 on a first side in the
- Light emission element 1 enters and leaves in the course on another side, the light emitting element 2 and thus also the light.
- the light source 15 is preferably elongated so that it extends parallel to the longitudinal axis L.
- the light source 15 may comprise LEDs arranged along a straight line parallel to the longitudinal axis L, for example on at least one LED board.
- at least one fluorescent tube can be provided as the light source, for example.
- the lamp 2 with
- the lamp 2 may also be provided for a different orientation with respect to the vertical. The directions etc. are to be reinterpreted accordingly in such a case.
- a light output of the lamp 2 is provided in the lower half space, in particular by a provided Lichtabstrahlraum R of the lamp 2 and the light emitting element 1 around, which points vertically downwards, ie also in the direction of the arrow u.
- the light emission direction R is thus in the example shown with reference to the
- FIG. 2 is a further cross section through the light 2 normal to the longitudinal axis L sketched - here without the light source 15 - and in Fig. 4, the separated
- the light-emitting element 1 has a first partial region 3 and a second partial region 4, wherein - viewed in the intended light emission direction R - the first partial region 3 is arranged below the second partial region 4. It is thus provided that the light emitted by the light source 15 of the luminaire 2 enters via the second subregion 4 into the light emission element 1 and
- the first portion 3 is formed to a
- the first portion 3 of the light-emitting element 1 is the first portion 3 of the light-emitting element 1
- the light-emitting element 1 has a width b transverse to the longitudinal axis L, and a vertical extent or height h.
- the width b may for example be between 5 and 20 cm
- the height h for example, be between 1 and 4 cm.
- the extent of the luminaire 2 along the longitudinal axis L may be for example between 50 cm and 10 m.
- the light emitting element 1 can be as long as the light 2 or shorter.
- Said light emitting surface 5 of the light emitting element 1 is formed in the example shown by a side surface of the cuboid, so that they have a "lateral"
- the light emitting element 1 as well as the lamp housing 10 with respect to a - here vertical - symmetry plane S symmetrically formed or shaped.
- a particularly even-looking appearance of the luminaire 2 is possible.
- the second subarea 4 of the light-emitting element 1 is configured to form no outer surface region of the luminaire 2. In the example shown, it is provided that the second portion 4 is completely within the two U-legs 101, 102 when the light-emitting element 1 is mounted as intended on the lamp housing 10.
- the light-emitting element 1 is preferably configured in such a way that between the first sub-area 3 and the second sub-area 4 a Boundary surface 6 is formed, which runs in a plane E.
- a Boundary surface 6 is formed, which runs in a plane E.
- the first portion 3 is made of an optically clear material.
- the first portion 3 made of PMMA or acrylic.
- the Lichtabgabefikiee 5 is preferably polished.
- the further lateral light emitting surface 51 and / or the lower light emitting surface 52 are preferably polished.
- the second portion 4 has a portion 41 which consists of an optically diffuse material and which is directly adjacent to the first portion 3.
- the portion 41 is formed by a lower layer of the second portion 4, wherein an upper layer 42 of the second portion 4 may consist of either a diffuse or a clear material.
- the proportion 41 of the second subarea 4 can accordingly also form 100% of the second subarea 4 or the entire second subarea 4.
- the second portion 4 is formed of PMMA or acrylic.
- a particularly uniform illumination of the first portion 3 is made possible when the boundary surface 6 between the first portion 3 and the diffuse portion 41 of the second portion 4 is formed extending in the plane E, in particular completely or exclusively in the plane E is formed extending.
- the design is such that the lower layer of the second portion 4, that is, the portion 41, extends upwardly to a second plane E2, which extends above the first-mentioned plane E and parallel to the latter.
- the light emitted by the light source 15 in the plane E quasi generates a homogeneously luminous surface, through which the light from the second subregion 4 enters the first subregion 3.
- the design is preferably such that the interface 6 extends to the Lichtabgabefikiee 5 out.
- the boundary surface 6 also extends to the further lateral Lichtabgabefikiee 51. This causes the light of the light source 15 - after passing through the second portion 4 - almost over the top of the cuboid, by the first portion. 3 is fixed, homogeneously enters the first portion 3.
- the light emission surface 5 appears to be particularly homogeneous or the light emission surfaces 5, 51, 52 appear to be particularly homogeneous. It can be practically avoided in this way that edges or similar structures map, by which the appearance would be inhomogeneous and thus impaired.
- the light-emitting element 1 can be made of one piece. Alternatively, it may be made of at least two pieces. For example, the first portion 3 and the second portion 4 may each be integrally formed, these two pieces are connected to form the light-emitting element 1 by gluing together, wherein the boundary surface 6 is formed by the bonding. Alternatively, however, another appropriate division into pieces may be provided, for example a division into two pieces along the second plane E2.
- At least one recess 7 is formed on an outer periphery of the second portion 4 of the light emitting element 1, which extends to the Lichtabgabefikiee 5 out.
- Fig. 3 shows the detail "A" of Fig. 2.
- Fig. 5 a sketch is shown in addition to a longitudinal section of the light emitting element 1 and a corresponding plan view in Fig. 6.
- the recess 7 is shaped profiled so that it extends over the entire length of the light emitting element 1 out.
- the recess 7 can furthermore be formed circumferentially around the light-emitting element 1 or the second sub-area 4, as is apparent from FIG. 6.
- a corresponding engagement or holding element 11 is preferably formed on the luminaire housing 10 - in the example shown on the free end region of the first U-leg 101.
- the holding element 11 is preferably designed in such a way that it With respect to the lamp housing 10 protrudes inward.
- the retaining element 11 may be a latching lug.
- the luminaire housing 10 can be designed in a particularly suitable manner such that an outer wall surface region 17 of the luminaire housing 10, here of the first U-leg 101, extending to the light emitting surface 5 back.
- the outer wall surface region 17 and the light emission surface 5 can be aligned in this way or in a common, further plane V.
- both the light-emitting surface 5 and the outer wall surface region 17 are oriented vertically, so that the further plane Kum is a vertical plane.
- the outer wall surface region 17 extends over the entire height of the first U-leg 101. The same applies to the second U-leg 102 and the other lateral light emitting surfaces 51. This sets the first
- Subarea 3 of the light emitting element 1 downwards virtually without rejuvenation or extension of the light housing 10 in its shape.
- the recess 7 with the light emitting surface 5 forms an edge which encloses an angle a which is between 100 ° and 170 °, preferably between 120 ° and 150 °; in the example shown, the angle ⁇ is particularly preferably 135 °. This makes it possible that light from the interior of the lamp housing 10th reaches the boundary line between the outer wall surface portion 17 and the light emitting surface 5 to an appropriate extent and thus the
- Light emitting surface 5 is evenly lit.
- a particularly suitable shape of the recess 7 is made possible when the
- Recess has an inclined surface 71, directly to the
- the diffuse component 41 of the second subregion 4 extends exactly as far as the lower edge of the recess 7.
- the recess 7 is viewed in cross-section wedge-shaped or
- the inclined surface 71 is plan shaped, can be particularly suitable to achieve that no unwanted reflections or reflections of light rays occur that would adversely affect the light output of the lamp. Light of the light source 15 can thus well without shading to the
- Light emitting element 1 on the lamp housing 10 allows.
- Recess 7 is thus formed an undercut.
- the light-emitting element 1 or the second sub-area 4 is not as wide as the first sub-area 3.
- the distance between the second sub-area 4 above the bearing surface 72 and the further level V is at least one dimension d, that of a wall thickness of the first U-leg 101 corresponds.
- the entire light-emitting element 1 is preferably formed from a multilayer composite panel material.
- the first portion 3 may be formed from a first, optically clear layer of this plate material and the portion 41 of second portion 4 may be formed of a second, optically diffuse layer of this plate material.
- a production by means of a casting process is suitable.
- the luminaire furthermore preferably has a reflector element with two reflector surfaces 13, 14, by means of which the light from the light source 15 is directed in a particularly suitable manner to the light emission element 1.
- the reflector surfaces 13, 14 are preferably designed in such a way that they extend in a diverging manner towards the light-emitting element 1.
- the reflector surfaces 13, 14 are preferably designed in such a way that they extend in a diverging manner towards the light-emitting element 1.
- the reflector surfaces 13, 14 are preferably designed in such a way that they extend in a diverging manner towards the light-emitting element 1.
- the reflector surfaces 13, 14 are preferably designed in such a way that
- Reflector surfaces 13, 14 designed white, especially painted white.
- Reflector element is preferably arranged in the luminaire housing 10.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012104101.4U DE202012104101U1 (en) | 2012-10-25 | 2012-10-25 | Light-emitting element for a luminaire, as well as luminaire with a light-emitting element |
PCT/EP2013/072140 WO2014064139A1 (en) | 2012-10-25 | 2013-10-23 | Light emission element for a luminaire, and luminaire comprising a light emission element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2912651A1 true EP2912651A1 (en) | 2015-09-02 |
EP2912651B1 EP2912651B1 (en) | 2016-06-29 |
Family
ID=49552333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13788705.5A Active EP2912651B1 (en) | 2012-10-25 | 2013-10-23 | Light emission element for a luminaire, and luminaire comprising a light emission element |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2912651B1 (en) |
DE (1) | DE202012104101U1 (en) |
WO (1) | WO2014064139A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5365411A (en) * | 1993-01-06 | 1994-11-15 | Kaufel Group Ltd. | Exit signs with LED illumination |
EP1131514A1 (en) * | 1999-09-22 | 2001-09-12 | Michael Gulvin Russell | Lighting panel |
GB2376287A (en) * | 2001-05-18 | 2002-12-11 | Michael Gulvin Russell | Luminous tile |
DE20211708U1 (en) * | 2002-07-30 | 2002-11-21 | Waldmann Gmbh & Co Herbert | recessed light |
DE202004011168U1 (en) * | 2004-06-18 | 2004-10-07 | Gutkes Elektro Vertriebs Gmbh | Paving stone lamp for ground, wall and ceiling installation has transparent cover |
ITMI20050181U1 (en) * | 2005-05-16 | 2006-11-17 | Guzzini Illuminazione S P A I | ASYMMETRIC DISTRIBUTION LIGHTING DEVICE |
GB2468005A (en) * | 2009-02-18 | 2010-08-25 | Essence Invest Ltd | LED illuminated light box display |
DE102010063272A1 (en) | 2010-12-16 | 2012-06-21 | Zumtobel Lighting Gmbh | lamp |
-
2012
- 2012-10-25 DE DE202012104101.4U patent/DE202012104101U1/en not_active Expired - Lifetime
-
2013
- 2013-10-23 EP EP13788705.5A patent/EP2912651B1/en active Active
- 2013-10-23 WO PCT/EP2013/072140 patent/WO2014064139A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2014064139A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2014064139A1 (en) | 2014-05-01 |
DE202012104101U1 (en) | 2014-01-30 |
EP2912651B1 (en) | 2016-06-29 |
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