EP1722158A1 - Lampe - Google Patents

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Publication number
EP1722158A1
EP1722158A1 EP06007699A EP06007699A EP1722158A1 EP 1722158 A1 EP1722158 A1 EP 1722158A1 EP 06007699 A EP06007699 A EP 06007699A EP 06007699 A EP06007699 A EP 06007699A EP 1722158 A1 EP1722158 A1 EP 1722158A1
Authority
EP
European Patent Office
Prior art keywords
light
diffuser element
region
luminaire according
light source
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.)
Withdrawn
Application number
EP06007699A
Other languages
German (de)
English (en)
Inventor
Leonhard Klose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erco GmbH
Original Assignee
Erco Leuchten GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Erco Leuchten GmbH filed Critical Erco Leuchten GmbH
Publication of EP1722158A1 publication Critical patent/EP1722158A1/fr
Withdrawn legal-status Critical Current

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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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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
    • 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
    • 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
    • F21W2131/30—Lighting for domestic or personal use
    • F21W2131/304—Lighting for domestic or personal use for pictures

Definitions

  • the invention initially relates to a luminaire according to the preamble of claim 1.
  • the invention relates to a building light, that is, a fixed to a building surface or on a part of the building installed light that can illuminate an outdoor space or an interior, such as a floor surface, a wall or a ceiling surface. But it can also be used to illuminate an object, such as a piece of art. In particular, it is a luminaire for installation on the ceiling, preferably in the manner of a recessed ceiling luminaire.
  • Luminaires according to the preamble of claim 1 are known and widely used. They are manufactured by the applicant for decades.
  • a Diffiusoreiement arranged in the light path between the light source and the light exit opening can for example be arranged directly in a light exit opening of the housing or be arranged in the light path in front of the light exit opening.
  • the diffuser element may be formed by a glass sheet and provided with a certain roughness or structure, for example by sandblasting the surface, so that light rays are diffused, thereby making the light uniform.
  • the wider light distribution or higher uniformity is desired in many applications.
  • the high luminance of the luminous means can be made uniform over the entire surface of the diffuser element by means of the diffuser element, so that the luminous means is e.g. no longer or not as good dissolvable and the glare is reduced.
  • a luminaire according to the preamble of claim 1 is for example in the DE 196 32 665 A1 the applicant described.
  • a reflector lamp in the manner of a recessed ceiling light represented, which has a rotationally symmetrical reflector, which has a luminous means receiving space in the rear region, which is bounded by a pointed cone-shaped, diffusely scattering, separate, planar component according to FIG.
  • This diffuser element is translucent, that is translucent, and opaque, that is, like a frosted glass, formed.
  • the present invention seeks to further develop a lamp according to the preamble of claim 1 such that it can be used variably with a simple design.
  • the invention achieves this object with the features of claim 1, in particular with those of the characterizing part, and is accordingly characterized in that the diffuser element for generating two different light cones has two regions with different transmission properties.
  • the diffuser element can have two or more regions with different transmission properties for the light emitted by the light source. This can produce at least two different light cone.
  • the different light cones differ both in terms of the type of light and in terms of their Auswirhtwinkeis or more generally in terms of their radiation characteristics.
  • a first, preferably central or inner cone of light be generated by a first region of the diffuser element, for example, consists of clear glass and thus provides a direct, unscattered or brighter (one speaks of harder) light.
  • a second, eg outer light cone which is produced by a second region of the diffuser element, which is provided, for example, with a diffusely scattering surface, can be a diffuser, ie more uniform or wider, scattering light known from conventional diffuser elements, and thus a light of a different type of light produce.
  • the first, inner cone of light has, overall, a light of higher intensity, whereas the second cone of light has a lower intensity of light.
  • the two light cones can also overlap.
  • the first inner cone of light is preferably formed narrower than the second, outer cone of light, which overlaps with the inner cone of light.
  • these two light cones are basically perceived as a common light distribution curve, wherein the total light cone produced by the two light cones, i. the overall light distribution of the luminaire, in its interior a central, lighter area and on the outside has a less bright area.
  • a centrally located area can be more strongly illuminated, so that the goods or exhibits placed inside this cone of light are emphasized and emphasized.
  • a more uniform lighting can be achieved by the second cone of light a more uniform lighting, which is generally perceived as pleasant.
  • a ceiling installation of the lamp according to the invention can be achieved in particular at greater distances from the ground due to the different beam angle of the two beams a more uniform illumination, which is considered less disturbing due to their uniformity, but at the same time can illuminate the room sufficiently.
  • the lamp according to the invention it is possible with the lamp according to the invention to produce two different types of light, which should fulfill different functions. This comes with a single one Diffuser element possible, which has two different areas with different transmission properties.
  • the diffuser element can be achieved, for example, by a flat, planar or a curved disk, in particular a glass or a plastic disk.
  • the second region can be achieved by machining a surface of the diffuser element or by incorporating pigments or the like bodies.
  • a surface treatment for example of glass panes for forming the diffuser element, sandblasting, etching or other structuring surface treatment methods come into consideration.
  • a diffuser element in the context of the invention those are also understood to mean essentially translucent bodies which have prisms, lenses, holographic elements, or the like and in this way form a second region.
  • the first region is preferably kept clear, but may also have another transmission characteristic, e.g. in the sense of a focus, which differs from the transmission property of the second range.
  • the first region may be formed by a different type of surface treatment, or may have other prisms, lenses, or holographic elements other than the second region.
  • the diffuser element may be color neutral or colored.
  • the luminaire preferably has a single light source, which generates both different light cones.
  • point-like light sources such as (high-pressure) metal halide lamps, low-voltage halogen lamps or high-voltage halogen lamps come into consideration.
  • white or colored LEDs can be used as a light source. It is also possible to provide multiple light sources.
  • the term "light cone” in the sense of the invention means a light distribution curve with an arbitrary cross-section, e.g. in the manner of a truncated cone whose cross-sectional area is determined both by the light exit opening of the luminaire and by reflector surfaces optionally provided in the housing.
  • the cone of light may have a circular or, alternatively, a cross section based on a polygon, e.g. a square cross section, own.
  • the diffuser element according to the invention can also have more than two regions for achieving more than two different light cones. Preferably, however, two areas are provided for producing two different light cones.
  • the invention further relates to a luminaire according to the preamble of claim 2.
  • FIG DE 196 32 665 A1 illustrated lamp in which a diffuser element is arranged in the light path between the light source and the light exit opening, which completely covers the light source.
  • Completely covering the formulation "means that all the light emitted by the light source and exiting through the diffuser opening must have passed through the diffuser element before, such a diffuser element being required to perform a protective function, if particular light sources are to be used, in particular point-like Light sources that can reach a high operating temperature.
  • high-pressure metal halide lamps, low-voltage halogen lamps or high-voltage halogen lamps must be covered to protect people in the room to be illuminated by at least one complete cover, which has no direct openings.
  • Diffuser elements having a finger access opening, as shown in Figures 2 to 4 of DE 196 32 665 A1 may not be used in accordance with the statutory provisions for such hazardous light sources or lamps.
  • the diffuser element completely covering the light source also has a protective function against lamp defects, and protects people in the room, e.g. before an explosion of the light source, in which, for example, glass parts can fly around.
  • the diffuser element is continuously ted and completely covers the light source.
  • this invention has the object, the luminaire in such a way that it can be used variably with a simple design.
  • the invention solves this problem with the features of claim 2, in particular with those of the characterizing part, and is accordingly characterized in that the diffuser element has two regions with different transmission properties.
  • the principle of the invention is essentially to divide a light source completely covering the diffuser element in two areas having different transmission properties.
  • the regions with different transmission properties serve in the manner explained above again to produce two different types of light.
  • a first, for example, central region of the diffuser element the If a region arranged essentially near a central longitudinal axis of the lamp can be designed to be clearly transparent, for example because a glass pane forming the diffuser element is not surface-treated in this first region.
  • the light that passes through the first area can thus provide a more brilliant light, for example for illuminating goods or objects.
  • the second region in particular a region which surrounds the first region in an annular manner, may conventionally be designed as a diffuser, for example by machining a surface, and provide a more uniform light for a second light cone.
  • the invention further relates to a luminaire according to the preamble of claim 3.
  • This invention is based, starting from a lamp according to FIG. 1 of DE 196 32 665 A1 , The object of developing a lamp according to the preamble of claim 3 in such a way that it can be used variably with a simple design.
  • the invention achieves this object with the features of claim 3, in particular with those of the characterizing part, and is accordingly characterized in that the diffuser element has two regions with different transmission properties, wherein the ratio of the diameter or the width of the first region to the total diameter or the total width of the diffuser element is approximately between 115 and 2/3, preferably about 1/3.
  • the principle of this invention is essentially to assign the diffuser element two different areas, which can produce different types of light, in particular different light cone. This can be achieved by different surface treatments of a preferably one-piece diffuser element, wherein, for example, a central first region is kept clear and a second outer region, which surrounds the first region in an annular manner, is provided by sandblasting with a surface which produces a diffuser effect.
  • the first region may have a first diameter in the case of a circular formation, and the second region may have a second diameter with a corresponding circular configuration of the entire diffuser element.
  • the ratio of the first diameter to the second diameter is approximately between 1/5 and 2/3, preferably about 1/3.
  • width is used instead of the term "diameter", ie, in the case of a square cross section of the first region and the entire diffuser element, the edge length of the square
  • the ratio of the widths is also approximately between 1/5 and 2/3, preferably about 1/3.
  • the two regions generate different types of light.
  • the first region can produce a brilliant light and the second region a more even, more diffuse light.
  • different shielding angles are assigned to the two different types of light.
  • the lamp as a whole can have a shielding angle of, for example, 40 °.
  • an outside of the illuminated area approximately at an angle of 40 ° or less, based on the ceiling, viewer located, the light source übertauptaupt not recognize.
  • Goods or objects which are arranged within an eg 60 ° cone of light are illuminated by the brilliant light and are thus highlighted.
  • a room area between 40 ° and 60 °, in each case with respect to the ceiling is aided exclusively by the second cone of light generated by the second area and which contains more uniform light which produces a pleasant and expedient illumination.
  • the numbers given for the shielding angles are, of course, only to be understood as examples and, depending on the intended use, may well change as well.
  • the two light cones can have different opening angles, wherein preferably the inner, central first light cone radiates narrowly and can have an opening angle (eg according to FIG. 1 of the present patent application) of, for example, 63 °, whereas the second light cone, which emits more diffuse light, has one Can have opening angle of for example 100 °.
  • the opening angle of the light cone is determined by the geometry of the reflector, the diameter or the width of the first region, the diameter or the width of the diffuser element and the position of the light source.
  • the diffuser element is substantially translucent and can only partly scatter, direct or focus light passing through it.
  • the first region of the diffuser element allows an immediate passage of the light emitted by the light source, without this light component is scattered, directed or focused, whereas the second region can perform the conventional function of a diffuser element in terms of light scattering, light control or light focusing.
  • the first region of the diffuser element passes through light substantially uninfluenced, wherein the second region of the diffuser element scatters light.
  • the first region of the diffuser element is arranged substantially centrally on the diffuser element. This allows a substantially rotationally symmetrical, at least symmetrical, training the luminaire and achieving a according to symmetrical Lichtvereitungs characterizing the light.
  • the second region of the diffuser element surrounds the first region of the diffuser element in an annular manner.
  • the second region of the DifFusariatas is obtained by a surface treatment. This allows a particularly simple production of the diffuser element according to the invention.
  • the light source is formed substantially point-like. This allows a very accurate predictability of the light distribution curve of the lamp.
  • the lamp has a reflector element. This allows a targeted light control, in particular of the light component, which passes through the second region of the diffuser element.
  • the reflector element is arranged in the light path between the diffuser element and the light exit opening. This allows optimized light control.
  • the light source is arranged in such a way and on the first Tuned portion of the diffuser element that the passing through the first region light components, at least for the most part, compose the lamp through the light exit opening, without being reflected by the reflector.
  • the light distribution curve of the luminaire can be further optimized.
  • the light source is arranged and matched to the second region of the diffuser element, that the light passing through the second region light components, at least for the most part, leave the light through the light exit opening only after reflection on the reflector. This allows a further optimized light distribution of the luminaire.
  • the diffuser element may be formed by a flat body that is flat or substantially curved. This allows a recourse to conventional, for example, used in the art as a finishing glass body, such as glass or polyacrylic body or other plastic elements.
  • the entire, passing through the light exit opening light has previously passed through the diffuser element. This allows a further optimized light distribution curve of the luminaire.
  • Fig. 1 shows a lamp 10 having a longitudinal central axis L, which may also be the symmetry axis of the lamp 10.
  • the longitudinal central axis L predefines the main emission direction A of the light of the luminaire and effectively acts as an optical axis.
  • the luminaire 10 may be rotationally symmetrical about its longitudinal central axis L according to FIG. 3 or, as is the case with the exemplary embodiment of FIGS. 1 and 2, only be constructed symmetrically with respect to this axis, and a generally square or other rectangular, if appropriate also thereof have different cross-section.
  • the luminaire has a coordinated cross-section of the light exit opening, reflector element, diffuser element and contour of a first and second area, which is described below.
  • the luminaire according to FIG. 1 comprises a housing 11 whose free edge region 31 is substantially flush with a ceiling 12 of a room.
  • the luminaire is thus designed as a ceiling luminaire.
  • the luminaire according to the invention for example, as a ceiling or wall luminaire, od as a pendant light. Like. Formed.
  • the housing 11 defines an interior 13 and a separate receiving space 14 for receiving a light source 15, which serves as a light source.
  • a light source 15 which serves as a light source.
  • punctiform light sources are used, ie those light sources which have only a very small luminous volume 16, such as, for example, high-pressure metal halide lamps, low-voltage halogen lamps or high-voltage halogen lamps.
  • the lamp 15 is mounted in a holder 17 in the region of an upper housing portion.
  • a holder 17 On the connecting cables and possibly existing operating devices, heat sinks and the like. Will not be discussed further here.
  • the illuminant receiving space 14 and the interior 13 of the luminaire 10 are separated from one another by a diffuser element 18.
  • the diffuser element consists in the embodiment of FIG. 1 of a substantially square, flat or flat glass and is shown in Fig. 2 in view.
  • the diffuser element 18 has a first region 20, which is arranged centrally, inwardly and has an edge length a, that is to say a corresponding width a.
  • the square diffuser element 18 has an overall edge length b and has a corresponding width b.
  • the second region 21 surrounds the first region 20 annularly, this ring also having a square cross-section.
  • the diffuser element 18 with the first region 20 and the second region 21 is designed to be continuous throughout.
  • the hatching of the second region 21 of the diffuser element 18 shown in FIGS. 1 and 3 is merely intended to clarify different transmission properties.
  • the region 21 acts as a diffuser, whereas the first region 20 is kept clear and has a surface 32 facing the light source 15, which is not sandblasted.
  • the central, first region 20 is also part of the diffuser element 18 and consists for example of glass or plastic.
  • the first region 20 in the exemplary embodiment of FIGS. 1 and 3 is not a through-opening, but rather filled with material.
  • the light beams emitted by the luminous volume 16 of the luminous means 15 can partially pass through the first region 20 of the diffuser element 18 and in this case can leave the light exit opening 23 of the luminaire 10 directly, without having to do so Reflector element 19 has been reflected.
  • These direct light portions are represented by the marginal rays 24a and 24b and produce a first cone of light 25 of a first type of light, more brighter or harder.
  • This light cone has a screen angle ⁇ 1 , based on the top wall 12, for example, about 60 °.
  • the exemplary light beam 28 in Fig. 1 illustrates such a typical light path.
  • the marginal rays of the light transmitted through the second region 21 of the diffuser element 18 are indicated at 26a and 26b in FIG. 1 and define a second, wider light cone 27 having a wider aperture angle of approximately 100 °, which is another type of light, namely a more uniform, more homogeneous one contains diffused or scattered light. It should be noted that all light components of the light emitted by the light source, which pass through the second region 21 of the diffuser element 18, are reflected at the reflector 19 and leave the light 10 only after reflection on the reflector element 19.
  • Fig. 4 shows a schematic representation of a mounted on the ceiling 12 lamp 10, which illuminates a bottom surface 33.
  • the first light cone 25, which is produced by the central first region 20 of the diffuser element 18, can produce brilliant light and, for example, emphasize, emphasize or in any case brightly illuminate a product which is arranged on an indicated shelf 30 within the light cone 25 .
  • the second beam 27, which produces more uniform light, can provide more desirable light in other areas of the room and, for example, illuminate portions 34a and 34b of the bottom surface and space portions 35a and 35b spaced from the bottom surface 33 with more uniform light.
  • FIG. 4 clearly shows that the shielding angle ⁇ 2 of the second light cone 27 is smaller and is for example 40 °.
  • the specified degrees of the shielding angle ⁇ 1 , ⁇ 2 are arbitrary.
  • a plurality of lights 10 may be disposed on a building ceiling 12, wherein the individual beams 25, 27, if necessary, can overlap, so that, for example, the effect is achieved that the bottom surface 33 overall or predominantly very bright and intense, is illuminated with brilliant light and the vast majority of room areas at a certain distance from the bottom surface 32, for example, in 2 m height, are illuminated for the greater part of more uniform light.
  • Fig. 3 shows a further embodiment of the lamp 10 according to the invention, which differs from the embodiment of Fig. 1 substantially by a modified design of the diffuser element 18, which is now curved, that is, for example, spherically curved.
  • an inner central first region 20 is provided, which transmits the light substantially uninfluenced and produces a cone of light 25 and a second annular region surrounding the first region 20 21, which acts as a diffuser in a conventional manner and generates a second cone of light 27.
  • the ratio of the width a of the first region 20 of the diffuser element 18 to the width b of the entire diffuser element 18 is in the range of 1/5 to 2/3.
  • the embodiments of Figures 1 and 3 can be approximately a ratio of the width a to the width b of the entire diffuser element 18 of about 1/3 recognize.
  • the dimension of the first region 20 or of the diffuser element 18 is to be regarded as width or diameter, which results on projection of the diffuser element 18 on a plane whose normal vector represents the longitudinal axis L.
  • the transmission properties of the first region 20 and of the second region 21 are different in that the light component passing through the first region 20 is smoothed out by the light source 15 unhindered, that is to say substantially unrestrained and substantially unscattered, and thus in particular the light cone does not fanned out or focused.
  • the second region 21 is intended to serve for equalization, fanning out or steering and, under certain circumstances, for focusing the light component passing through the second region 21.
  • This diffuser effect of the second region 21 can be achieved by a surface treatment of the side of the second region 21 facing the light source or also attematively by a surface treatment of the side of the second region 21 facing away from the illuminant 15.
  • an existing diffuser element which, for example, has an overall roughened surface, is surface-treated in the first region 20 in such a way that the side 32 of the first region 20 facing the light source is smoothed and insofar a clear glass-like configuration of the first region 20 is achieved.
  • the Diffuser element 18 in the area 21 also pigments, scattering bodies od.
  • the diffuser element 18 is made in one piece, in one piece and formed. It is also conceivable that the diffuser element 18 is composed of two pieces or elements or has an opening located in the central region 20, however, for safety and security purposes, especially when using the aforementioned point-shaped bulbs, which can reach high temperatures to should be avoided.
  • the second region 21 of the diffuser element 18 may be formed by lenses or prism elements or by holographic structures.
  • the second region 21, and optionally also the first region 20, may be colorless or tinted or colored, whereby different colored tints are also possible. Both the colored tint and a diffuser effect can also be achieved by gluing a film or fixing comparable elements on an outer side of the diffuser element 18, wherein the different regions 20, 21 can also be associated with different films.
  • the arrangement and size of the first region 20 is made such that it is ruled out that direct light components from the illuminant 15 strike the reflector element 19. In this way uncontrolled reflections can be avoided with a simple design.
  • the first region 20 on an outer contour K which corresponds to the overall contour G of the diffuser element 18 and the contour of the light exit opening 23.
  • the light exit opening 23 also has a square cross-section.
  • the light exit opening 23, the contour of the first region 20 and the outer contour of the diffuser element 18 are circular.
  • the light source is e.g. a metal halide lamp, e.g. a HIT-TC-CE according to the ZVEI abbreviation.
  • the first light cone 25 is preferably formed narrower than the second light cone 27 and is completely surrounded by this. In the region of the first light cone 25, there is thus an addition of the luminous fluxes, the light cone 25 being dominated by the more brilliant luminous flux essentially by the more brilliant direct light producing a higher level of shading.
  • the invention makes it possible to achieve two different Lichtquaütuschen with a single lamp and a single light source with a very simple design.
  • the diffuser has two different scattering areas.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
EP06007699A 2005-05-09 2006-04-12 Lampe Withdrawn EP1722158A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005022054A DE102005022054C5 (de) 2005-05-09 2005-05-09 Leuchte

Publications (1)

Publication Number Publication Date
EP1722158A1 true EP1722158A1 (fr) 2006-11-15

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EP06007699A Withdrawn EP1722158A1 (fr) 2005-05-09 2006-04-12 Lampe

Country Status (4)

Country Link
US (1) US20070097693A1 (fr)
EP (1) EP1722158A1 (fr)
JP (1) JP2006318906A (fr)
DE (1) DE102005022054C5 (fr)

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EP2034234A1 (fr) * 2007-09-05 2009-03-11 Toshiba Lighting & Technology Corporation Appareil d'éclairage
EP2097669A1 (fr) * 2006-11-30 2009-09-09 Cree Led Lighting Solutions, Inc. Dispositifs d'éclairage auto-ballastés à l'état solide
US7993033B2 (en) 2008-05-22 2011-08-09 Toshiba Lighting & Technology Corporation Reflector and lighting apparatus comprising reflector
CN101725852B (zh) * 2008-10-22 2013-05-22 东芝照明技术株式会社 照明器具
US8556458B2 (en) 2009-06-19 2013-10-15 Toshiba Lighting & Technology Corporation Power source unit and illumination device
WO2015011133A1 (fr) * 2013-07-22 2015-01-29 Zumtobel Lighting Gmbh Appareil d'éclairage pourvu d'un élément à structure prismatique courbée

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US7896529B2 (en) 2006-06-01 2011-03-01 Cooper Technologies Company Surface-mounted lighting system
CN101578479A (zh) * 2007-01-12 2009-11-11 松下电器产业株式会社 发光装置和使用该发光装置的照明设备
US7784979B2 (en) * 2008-05-05 2010-08-31 Cooper Technologies Company Reflector assembly for a recessed luminaire
US8388193B2 (en) 2008-05-23 2013-03-05 Ruud Lighting, Inc. Lens with TIR for off-axial light distribution
EP2286142B1 (fr) * 2008-05-23 2015-07-29 Cree, Inc. Luminaire à diode électroluminescente encastré
ITMI20081135A1 (it) 2008-06-24 2009-12-25 Trapani Paolo Di Dispositivo di illuminazione
GB2461935C (en) * 2008-11-12 2012-03-28 Collingwood Lighting Ltd Lighting unit.
WO2010113098A1 (fr) * 2009-04-02 2010-10-07 Koninklijke Philips Electronics N.V. Réflecteur à chambre de mélange
DE102009049301A1 (de) 2009-10-13 2011-05-05 Erco Gmbh Leuchte
DE202009013887U1 (de) 2009-10-13 2011-02-24 Erco Gmbh Leuchte
DE102009058308B4 (de) * 2009-12-15 2011-12-08 Siteco Beleuchtungstechnik Gmbh Reflektor für Leuchten mit Ellipsoid-Facetten
US8602602B2 (en) * 2010-01-14 2013-12-10 Cooper Technologies Company LED downlight with improved light output
US9541257B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for primarily-elongate light distribution
US10408429B2 (en) 2012-02-29 2019-09-10 Ideal Industries Lighting Llc Lens for preferential-side distribution
US9541258B2 (en) 2012-02-29 2017-01-10 Cree, Inc. Lens for wide lateral-angle distribution
JP6110713B2 (ja) * 2013-04-05 2017-04-05 扶桑電機工業株式会社 出入口の照明装置
DE102015105505A1 (de) * 2015-04-10 2016-10-13 Trilux Gmbh & Co. Kg Multifunktionale lichttechnische Abdeckung mit Direktlichtbereich

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US8057070B2 (en) 2006-11-30 2011-11-15 Cree, Inc. Self-ballasted solid state lighting devices
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US8042973B2 (en) 2007-09-05 2011-10-25 Toshiba Lighting & Technology Corporation Lighting apparatus
US8047687B2 (en) 2007-09-05 2011-11-01 Toshiba Lighting & Technology Corporation Lighting apparatus
US8079736B2 (en) 2007-09-05 2011-12-20 Toshiba Lighting & Technology Corporation Lighting apparatus
US7993033B2 (en) 2008-05-22 2011-08-09 Toshiba Lighting & Technology Corporation Reflector and lighting apparatus comprising reflector
CN101725852B (zh) * 2008-10-22 2013-05-22 东芝照明技术株式会社 照明器具
US8482014B2 (en) 2008-10-22 2013-07-09 Toshiba Lighting & Technology Corporation Lighting apparatus
US8556458B2 (en) 2009-06-19 2013-10-15 Toshiba Lighting & Technology Corporation Power source unit and illumination device
WO2015011133A1 (fr) * 2013-07-22 2015-01-29 Zumtobel Lighting Gmbh Appareil d'éclairage pourvu d'un élément à structure prismatique courbée

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DE102005022054C5 (de) 2013-01-17
DE102005022054B4 (de) 2010-04-15
US20070097693A1 (en) 2007-05-03
JP2006318906A (ja) 2006-11-24
DE102005022054A1 (de) 2006-11-16

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