WO2011080767A1 - Dispositif d'éclairage - Google Patents

Dispositif d'éclairage Download PDF

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Publication number
WO2011080767A1
WO2011080767A1 PCT/IT2009/000581 IT2009000581W WO2011080767A1 WO 2011080767 A1 WO2011080767 A1 WO 2011080767A1 IT 2009000581 W IT2009000581 W IT 2009000581W WO 2011080767 A1 WO2011080767 A1 WO 2011080767A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical element
light
angle
light beams
respect
Prior art date
Application number
PCT/IT2009/000581
Other languages
English (en)
Inventor
Flavio Turcatel
Original Assignee
Ar-Ky S.R.L.
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 Ar-Ky S.R.L. filed Critical Ar-Ky S.R.L.
Priority to PCT/IT2009/000581 priority Critical patent/WO2011080767A1/fr
Publication of WO2011080767A1 publication Critical patent/WO2011080767A1/fr

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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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
    • F21V29/763—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
    • 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
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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
    • 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
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F21V31/005—Sealing arrangements therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional 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 present invention refers to a lighting device including a printed circuit on which is anchored a light source of LED type and an optical unit placed at a fixed distance from said light source.
  • the device is a lamp for street lighting, a headlight for vehicles or a lamp for lighting external or internal spaces such as, for example, homes, industrial or commercial establishments.
  • lighting devices have long been produced by making use of the collimating lens technology.
  • Collimating lenses are positioned downstream of the light source and make it possible to cluster the individual light beams that irradiate in every direction from a light source to form substantially parallel beams of light perpendicular with respect to the plane of the source itself.
  • a typical example of such lenses are the lenses of Fresnel type. In this manner, the lighting efficiency of the lamp can be advantageously increased, especially in situations in which the light must reach points that are far from its source and, at the same time, the lens maintains a limited thickness.
  • Every street lamp must have a light beam wider than 120°. This angle is given by the ratio of height to interdistance of the lamps along the road. This ratio is normally 3.7; that is, for each metre in height of the lamp the distance between two adjacent lamps must be 3.7 metres.
  • the lamps should have a lighting surface convexly curved downward, that is, toward the street, with light sources positioned along a circular arc.
  • the luminous flux on the ground is scattered due to the impossibility of directing it in a geometrical form such as to reproduce the road area to illuminate.
  • the technical problem at the basis of the present invention is therefore to devise a lighting device capable of obviating the drawbacks mentioned above.
  • a lighting device having optical characteristics such as to obtain a luminous beam opening according to current requirements and/or regulations, optimal characteristics of homogeneity and efficiency of the same luminous beam, and a simplified structure that is easy to manufacture and reliable.
  • the purpose of the present invention is therefore to provide a lighting device for streets, civil, industrial and commercial establishments, or for vehicles as covered by the enclosed claims.
  • FIG. 1 is a schematic axonometric projection partly in cross section of the optical and electronic component of the device of the invention
  • Figures 2A and 2B represent respectively an axonometric projection from below and one from above of first optical elements of the optical component of Figure 1 ;
  • Figures 3A and 3B are respectively an axonometric projection from above and one from below of second optical elements of the optical component of Figure 1 ;
  • FIG. 4 is a schematic view, in partial lateral and enlarged cross section of the first and second optical elements of the optical component of the inventive device;
  • FIG. 5 is a schematic and enlarged view of a portion of lateral cross section of the optical and electronic component of Figure 1 ;
  • FIG. 6 is a schematic axonometric exploded projection of the device according to the invention.
  • reference number 1 represents in general the functional component of the lighting device of the present invention.
  • This component 1 includes a support 2 on which is fastened a printed circuit 3, a plurality of first optical elements 4 and a plurality of second optical elements 5.
  • the support 2 is represented by a conventional, substantially flat plate provided with a surface on which the printed circuit 3 and said plurality of first optical elements 4 are fastened.
  • the plate can be made of any suitable material conventionally used to support printed circuits.
  • it may be made of metal or plastic material, preferably a metal material provided with particular characteristics of dissipation of the heat generated by the light source, such as aluminium.
  • a polymeric plastic material with a high thermal conductivity and heat resistance can be used for the purpose of heat dissipation.
  • the printed circuit or PCB (Printed Circuit Board) is of conventional type and includes light sources 6 electrically connected and fastened to said circuit.
  • the circuit includes through holes 7 suitable to allow the fastening of said plurality of first optical elements 4 to the support 2.
  • FIGS 2A and 2B schematically show a module 8 including said plurality of first optical elements 4.
  • the module 8 represents nine optical elements 4 arranged so as to form a square in plan view. It is evident that such arrangement can vary according to the final dimensions of the lamp and, therefore, the number of elements per module can be larger or smaller.
  • each module includes a first face 81 and a second face 82, with the first face corresponding to the face turned toward the light source and the second face corresponding to the face turned outwardly from the lamp, that is, in the direction of illumination.
  • the first optical elements 4 display a first face 41 having a general appearance of concentric rings and a second face 42 having a generally chequered appearance.
  • Support spacing pins 9 extend from the second face 82 of the first optical elements 4. Such pins engage the corresponding above-mentioned through holes 7 of the printed circuit 3 so as to support the optical elements at a certain distance from said printed circuit. At the same time, the pins with said through holes also serve as centring elements for a correct installation on the printed circuit.
  • Figure 4 illustrates a schematic cross section along the longitudinal axis X- X of Figure 1 , with the first 4 and second 5 optical elements enlarged.
  • the first optical elements 4 have a first surface 10 turned toward the light sources 6, when in use, and a second surface opposite to the first one and thus turned in the direction of propagation of the light cone emitted by such light sources.
  • the first surface 10 is lined with a series or prisms 2 so as to create an optical geometry typical of a Fresnel lens.
  • the prisms 12 are subdivided into a group 14 of intermediate prisms and a group 15 of peripheral prisms, while the central portion 13 of the optical element 4 or lens is substantially flat.
  • the group of intermediate prisms 14 includes first faces 16 and second faces 17 suitable to receive light from the source 6, separate it into beams of light 18 and refract/reflect said beams within the thickness of the lens 4 according to a preset angle referred to the Y-Y axis perpendicular to the plane of the lens itself. Said first faces 16 and second faces 17 are positioned so as to refract/reflect the greater part of the light beams in a manner substantially parallel to said Y-Y axis.
  • the first face 16 is inclined with respect to the Y-Y axis at an angle between 45° and 85°, more preferably between 50° and 80°, while the second face 17 is inclined 170°-180°, preferably 175°-178°, with respect to the Y-Y axis.
  • their height with respect to the substantially flat central portion 13 preferably increases in a centrifugal direction and is included between 0.1 mm and 0.5 mm.
  • the peripheral prisms 15 also include a first face 19 and a second face 20 suitable to receive the light beams 18 from the source 6 and to refract/reflect them within the thickness of the lens according to a further preset angle.
  • they are such as to refract/reflect the greater part of the light beams in a manner substantially parallel to said Y-Y axis, always with respect to the Y- Y axis.
  • the first face 19 is inclined at an angle between 25° and 40°, more preferably between 30° and 35° with respect to said Y-Y axis
  • the second face 20 is inclined at an angle between 170° and 180°, preferably between 175° and 178°.
  • their height with respect to the central portion 13 decreases in a centrifugal direction and is included between 2 mm and 0.7 mm.
  • each of said intermediate prisms 14 and peripheral prisms 15 may be included between 3 mm and 0,5 mm.
  • the central portion 13 does not produce any substantial refraction or reflection of the light beams.
  • the second surface 11 of the lens 4, always as shown in Figure 4 is, on the contrary, lined with concavities 21 turned toward the light sources 6 or, in other words, convexities turned in the direction of propagation of the light.
  • the concavities in the cross section of Figure 4 appear as circular arcs whose radius may vary according to the angle of aperture of the light cone desired.
  • the radius of curvature may be such as to receive the light beams 18 substantially perpendicular to the Y-Y axis, as previously explained, and to deflect them with respect to the same axis Y-Y by an angle included between 0° and ⁇ 35°.
  • the above-mentioned concavities may be spherical and therefore have the above-mentioned effect in both a longitudinal and a transversal direction with respect to the lighting device.
  • the concavities may have a transversal cross section different from the longitudinal one with respect to the longitudinal axis X-X of the device.
  • the two cross sections may have different radiuses of curvature to obtain in one direction or in the other a different angle of refraction of the light. In this case, it is possible to have different deflections of the light beams in the longitudinal or transversal direction.
  • the device 1 will have a second surface 11 provided with concavities that are more accentuated than the concavities of its transversal cross section.
  • the first optical elements 4 or lenses are made of vitreous or plastic material. Preferably, they are made of plastic material made by overinjection moulding using polymers such as for example polycarbonate or polymethylacrylate.
  • the thickness of the lenses may vary from 3 mm to 4 mm overall, in which 1.5 mm to 2.5 mm, preferably 2 mm, are the core 22 of material and the rest is the sum of the depth of the prisms 10 and of the concavities 21 of the second surface 11 ( Figure 5).
  • the diameter of the first surface 10 of each lens 4 may range between 10 mm and 30 mm, and is preferably 26 mm.
  • the number of lenses per module as well as the number of modules may vary according to requirements or preferences. In particular, in the case of street lighting lamps it has been noted that to meet the most stringent regulations it is sufficient to have an array of lenses 4 arranged so as to form a flat plate or an array that includes from ten to sixty sources 6 and corresponding lenses. Obviously, in the case in which conditions require it, the number of lenses and/or modules can be increased or decreased.
  • the modules may, in turn, include one or more piece-moulded lenses as previously explained so as to form modules that are preferably multiples of three.
  • the shape of the plate or array of lenses as seen from above may be rectangular, as shown in Figure 1 , or it may be square or have other shapes as required by circumstances.
  • the lighting device 1 according to the present invention also includes second optical elements 5 or lenses.
  • these second optical elements 5 appear as a plate 23, shown as a whole in Figures 3A and 3B, generally flat and positioned so as to face and be parallel to the second surface 11 of said first optical elements 4 ( Figure 1 ).
  • the second optical elements 5 are positioned downstream with respect to the direction of the luminous flux emitted by the light source 6 and after the flux itself has crossed the first optical elements.
  • said second optical elements 5 have a first surface 24 turned toward the first optical elements 4 and a second surface 25 opposite said first surface.
  • the first surface 24 is lined with refractive elements 26 distributed in at least two different types in different portions of the same surface.
  • the refractive elements have characteristics that enable them to refract the light coming from said first elements or lenses 4 in a different manner depending on the portion of said surface involved.
  • the surface 24 is divided into at least one peripheral portion 27 and at least one central portion 28.
  • Said at least one peripheral portion 27, as is best shown in Figure 4, has in its longitudinal cross section a surface lined with a series of said refractive elements having in general cusp shapes 29.
  • the cusps have the function of collecting part of the light beams 18 coming from the first optical elements 4 and of deflecting them toward the periphery of the lighting device 1.
  • some light beams will in any case be deflected toward the centre of the device 1 , but most of them will undergo the above deflection toward the periphery.
  • the cusps deflect the light beams up to a maximum of a further 30° with respect to the angle of incidence, that is, the angle at which they reach said cusps.
  • Said at least one central portion 28 includes concavities 31 turned in the direction of propagation of the light or, in other words, convexities toward the light source, which are preferably divided into first concavities 32 and second concavities 33 having radiuses of curvature that vary depending on their respective function.
  • first concavities 32 are positioned adjacent to the peripheral portion 27 and have an accentuated radius of curvature so as to have a general shape approaching the shape of the above-mentioned cusps.
  • the second concavities 33 are positioned in the actual central portion and have a more attenuated convexity.
  • This differentiation has the advantage of achieving a greater effect of refraction and separation of the light toward the centre of the lighting device and a greater deflection of the light toward the periphery.
  • the light beams leaving the central portion 28 will be further refracted by an angle of ⁇ 5° to ⁇ 20° with respect to the angle of incidence, that is the angle in which the light beam enters into said portion, while the light beams leaving the peripheral portion 27 will be further reflected at an angle up to 30° with respect to the angle of incidence.
  • the surface 24 has the above refractive elements 26 arranged transversally with respect to the longitudinal axis A-A of the second optical element 5. In this manner, the light is split and refracted in light beams distributed along the A-A axis with the above angles of aperture.
  • the second surface 25 of the second optical elements 5 is flat, so as to not further modify the path of the light beams 18.
  • the second surface 25 by providing it with cusps and/or convexities in all effects similar to the ones previously described but arranged longitudinally with respect to the A-A axis in order to split and refract the light into light beams transversally to said axis, depending on particular requirements or as preferred.
  • the second optical elements 5, like the first optical elements 4, are made of a vitreous or plastic material.
  • the material is a polymeric plastic like polymethyl methacrylate (PMMA) or polycarbonate.
  • PMMA polymethyl methacrylate
  • the thickness may vary from 3 mm to 6 mm, 2 mm to 3 mm of which consist of the core, while the rest is made up by the height of the cusps or concavities.
  • the second optical elements 5 are then positioned at a certain distance from the first optical elements 4. Preferably, this distance is included between 10 mm and 20 mm, more preferably it is 15 mm.
  • the lighting device 1 of the present invention makes it possible to advantageously separate and refract the light coming from a light source, such as for example the light emitted by a LED which is very concentrated, in an area that may also be very wide, simplifying the structure of the optical component on a single plane and not on more planes, as is necessary with the devices of the known art.
  • a light source such as for example the light emitted by a LED which is very concentrated
  • the lighting device 1 used as a street lamp positioned at a height of 8 m above the roadbed can project on the ground a light cone with a width larger than 120° with respect to the perpendicular that joins the centre of the lamp with the roadbed, as required by the most stringent regulations.
  • the width obtained is 124°.
  • the distribution of the light on the roadbed from a height of 8 m, for a device provided with thirty-six LEDs and with the optics as described above covers a surface measuring 30 m in length and 8 m in width without divergences at the margins, with gradual lessening in intensity and without discontinuities.
  • the lighting device 100 of the invention includes, in addition, a case 34 suitable to house all the functional components of the device, that is, both the optical components and the electronic components, such as the printed circuit 3 and the power supplies (not shown), as well as the supports 2 for the electronic and the optical components.
  • the case 34 has a box-like shape and includes a series of thermal dispersion elements 35. Such elements may be represented by fins set at right angles to the body of the device.
  • the case may have an edge 36 rimming the opening of the case provided with a seat 37 suitable to receive a corresponding gasket 38 to prevent the entrance of water or dust that could damage the electrical or electronic parts.
  • a cover 39 closes said components and the optics in the box-like element.
  • the cover 39 consists of a generally flat portion represented by a plate of said second optical elements 5 and an edge 40 engaging with the above edge 36 of the case to close the same case.
  • the lighting device 100 is made up of a very simple structure in which the optical part consists of a first plurality of lenses 4 arranged on a single plane of limited thickness and of a second plurality of lenses 5 which are also arranged on a single plane of limited thickness and positioned parallel to and at a certain distance from said first plurality of lenses. It follows that the optical part can be made in a simple manner, as for example through the technology of moulding plastic material. At the same time, the whole resulting structure is one of reduced size.
  • the technology at the base of the lighting device 100 is of high quality and reliable, and the production is considerably simplified and accelerated, so that from the economic point of- view the product offers a considerable advantage in terms of costs.
  • the positioning of the optics on a single plane also implies a positioning of the light sources on a single plane. This entails the complete absence of the above-mentioned occurrence of light pollution.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

La présente invention porte sur un dispositif d'éclairage (100), qui comprend un support (2) sur lequel est fixé un circuit imprimé (3) comportant au moins une source de lumière (6) et au moins une unité optique (4, 5) apte à diviser et réfléchir/réfracter la lumière délivrée par ladite source de lumière, caractérisé en ce que ladite ou lesdites unités optiques comprennent au moins un premier élément optique (4) comportant une première surface (10) tournée vers ladite source de lumière et comprenant une série de prismes (12) appropriés pour recevoir ladite lumière, divisant celle-ci en faisceaux de lumière et alignant ceux-ci sensiblement parallèlement le long de l'axe (Y-Y) perpendiculaire au plan de ladite première surface (10) et d'une seconde surface (11) opposée à ladite première surface et comprenant des concavités (21) appropriées pour réfracter lesdits faisceaux de lumière, de façon à obtenir ainsi une ouverture du cône de lumière émis par ladite source (6), ladite unité optique comprenant de plus un second élément optique (5) comportant une première surface (24) tournée vers ledit ou lesdits premiers éléments optiques (4) et comprenant des éléments réfracteurs (26) répartis transversalement par rapport à l'axe longitudinal (A-A) dudit ou desdits seconds éléments optiques (5) dans au moins une partie périphérique (27), lesdits éléments réfracteurs ayant une forme globale cuspidée et étant appropriés pour diriger lesdits faisceaux de lumière vers l'extérieur à partir du dispositif, et comprenant dans au moins une partie centrale (28) des concavités (32, 33) appropriées pour réfracter encore davantage lesdits faisceaux de lumière.
PCT/IT2009/000581 2009-12-28 2009-12-28 Dispositif d'éclairage WO2011080767A1 (fr)

Priority Applications (1)

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WO2011080767A1 true WO2011080767A1 (fr) 2011-07-07

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Cited By (11)

* Cited by examiner, † Cited by third party
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WO2013026440A3 (fr) * 2011-08-21 2013-04-18 Jenoptik Polymer Systems Gmbh Lampe à del
CN103256559A (zh) * 2013-05-21 2013-08-21 杭州华普永明光电股份有限公司 一种结构牢固且耐久性好的led透镜组及照明装置
CN103557446A (zh) * 2013-10-11 2014-02-05 浙江星碧照明科技有限公司 一种led模块
CN103791281A (zh) * 2014-01-23 2014-05-14 浙江星碧照明科技有限公司 一种led灯具
CN103994354A (zh) * 2014-05-29 2014-08-20 杨传银 一种防眩目且光利用效率高的led灯
WO2015036295A1 (fr) * 2013-09-10 2015-03-19 Koninklijke Philips N.V. Dispositif optique, dispositif d'éclairage et luminaire
CH709342A1 (de) * 2014-03-07 2015-09-15 Regent Beleuchtungskörper Ag Linearleuchte und Optik für eine Linearleuchte.
EP2905529A4 (fr) * 2012-10-05 2016-05-25 Enplas Corp Élément de commande de flux lumineux, dispositif électroluminescent et dispositif d'éclairage
CN105683651A (zh) * 2013-10-24 2016-06-15 飞利浦灯具控股公司 具有两个或更多微结构化膜的光学配置
US20170184265A1 (en) * 2014-05-22 2017-06-29 Philips Lighting Holding B.V. Luminaire, especially for road lighting
FR3113513A1 (fr) * 2020-08-24 2022-02-25 Maquet Sas Dispositif d'éclairage opératoire

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GB2092734A (en) * 1981-02-05 1982-08-18 Thorn Emi Ltd Lanterns for Area Lighting
WO2006072885A1 (fr) * 2005-01-07 2006-07-13 Fraen Corporation S.R.L. Dispositif d'eclairage a faisceau de lumiere variable, destine en particulier a une lampe-torche
US20070147041A1 (en) * 2005-10-14 2007-06-28 Kabushiki Kaisha Toshiba Lighting system
FR2913483A1 (fr) * 2007-03-08 2008-09-12 Lyracom Sarl Dispositif d'eclairage a led
EP2056018A1 (fr) * 2007-10-31 2009-05-06 Foxsemicon Integrated Technology, Inc. Abat-jour et lampe d'éclairage dotée de celui-ci

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US20070147041A1 (en) * 2005-10-14 2007-06-28 Kabushiki Kaisha Toshiba Lighting system
FR2913483A1 (fr) * 2007-03-08 2008-09-12 Lyracom Sarl Dispositif d'eclairage a led
EP2056018A1 (fr) * 2007-10-31 2009-05-06 Foxsemicon Integrated Technology, Inc. Abat-jour et lampe d'éclairage dotée de celui-ci

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CN103748407A (zh) * 2011-08-21 2014-04-23 业纳聚合物系统有限公司 带有包括菲涅耳透镜和呈蜂窝状布置的非球面透镜的透镜系统的led灯
WO2013026440A3 (fr) * 2011-08-21 2013-04-18 Jenoptik Polymer Systems Gmbh Lampe à del
EP2905529A4 (fr) * 2012-10-05 2016-05-25 Enplas Corp Élément de commande de flux lumineux, dispositif électroluminescent et dispositif d'éclairage
US9568168B2 (en) 2012-10-05 2017-02-14 Enplas Corporation Light flux controlling member, light emitting device and illumination apparatus
CN103256559A (zh) * 2013-05-21 2013-08-21 杭州华普永明光电股份有限公司 一种结构牢固且耐久性好的led透镜组及照明装置
WO2015036295A1 (fr) * 2013-09-10 2015-03-19 Koninklijke Philips N.V. Dispositif optique, dispositif d'éclairage et luminaire
CN103557446A (zh) * 2013-10-11 2014-02-05 浙江星碧照明科技有限公司 一种led模块
CN103557446B (zh) * 2013-10-11 2015-07-29 王丽娜 一种led模块
EP3060843B1 (fr) * 2013-10-24 2017-06-28 Philips Lighting Holding B.V. Configurations optiques avec deux ou plusieurs films microstructurés
CN105683651A (zh) * 2013-10-24 2016-06-15 飞利浦灯具控股公司 具有两个或更多微结构化膜的光学配置
CN103791281A (zh) * 2014-01-23 2014-05-14 浙江星碧照明科技有限公司 一种led灯具
CH709342A1 (de) * 2014-03-07 2015-09-15 Regent Beleuchtungskörper Ag Linearleuchte und Optik für eine Linearleuchte.
US10215350B2 (en) * 2014-05-22 2019-02-26 Philips Lighting Holding B.V. Luminaire, especially for road lighting
US20170184265A1 (en) * 2014-05-22 2017-06-29 Philips Lighting Holding B.V. Luminaire, especially for road lighting
CN107076376A (zh) * 2014-05-22 2017-08-18 飞利浦灯具控股公司 特别地用于道路照明的照明器
RU2689329C2 (ru) * 2014-05-22 2019-05-27 Филипс Лайтинг Холдинг Б.В. Осветительный прибор, особенно для дорожного освещения
CN107076376B (zh) * 2014-05-22 2019-09-27 飞利浦灯具控股公司 特别地用于道路照明的照明器
CN103994354A (zh) * 2014-05-29 2014-08-20 杨传银 一种防眩目且光利用效率高的led灯
FR3113513A1 (fr) * 2020-08-24 2022-02-25 Maquet Sas Dispositif d'éclairage opératoire
WO2022043135A1 (fr) * 2020-08-24 2022-03-03 Maquet Sas Dispositif d'éclairage opératoire

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