EP3477192B1 - Abdeckung für ein leuchtmodul, leuchtmodul und leuchte - Google Patents

Abdeckung für ein leuchtmodul, leuchtmodul und leuchte Download PDF

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Publication number
EP3477192B1
EP3477192B1 EP18202639.3A EP18202639A EP3477192B1 EP 3477192 B1 EP3477192 B1 EP 3477192B1 EP 18202639 A EP18202639 A EP 18202639A EP 3477192 B1 EP3477192 B1 EP 3477192B1
Authority
EP
European Patent Office
Prior art keywords
light
cover
lighting module
central region
emitting diodes
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.)
Active
Application number
EP18202639.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3477192C0 (de
EP3477192A1 (de
Inventor
Konstantin Engeter
Tobias Hösle
Stephan Lukanow
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.)
Siteco GmbH
Original Assignee
Siteco 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 Siteco GmbH filed Critical Siteco GmbH
Publication of EP3477192A1 publication Critical patent/EP3477192A1/de
Application granted granted Critical
Publication of EP3477192B1 publication Critical patent/EP3477192B1/de
Publication of EP3477192C0 publication Critical patent/EP3477192C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • a light module and a lamp are specified.
  • One task to be solved is to provide a lighting module that is particularly versatile.
  • the lighting module includes a cover described here.
  • the lighting module includes a plurality of light-emitting diodes that are designed to emit light.
  • the light-emitting diodes are, for example, light-emitting diodes that emit colored or, in particular, white light during operation.
  • the lighting module further comprises a plurality of primary optical elements, with a primary optical element being arranged downstream of each light-emitting diode.
  • the primary optical element is designed to optically influence, for example to collect or scatter, the light emitted by the associated light-emitting diode.
  • the primary optical element is formed with a translucent material.
  • the primary optical element includes a clear-sighted one Matrix material that can be filled with other substances such as light-scattering and/or light-reflecting particles, dyes, pigments or conversion substances. It is also possible that the matrix material is unfilled.
  • the matrix material includes a glass or a plastic material such as PMMA.
  • light-emitting diodes can be assigned to a primary optical element, that is, for example, two or more light-emitting diodes can be assigned to a primary optical element.
  • a lighting module described here comprises a cover described here, which is arranged on the side of the light-emitting diodes facing away from the primary optical elements.
  • the lighting module comprises two-part optics, with the cover forming the secondary optics, which in particular is only irradiated by light that has already irradiated a primary optics element.
  • the lighting module is based on the following considerations: If, for example, the equipping of the lighting module with light-emitting diodes is changed in such a way that a primary optical element is assigned two or more light-emitting diodes instead of one light-emitting diode, which are arranged next to one another, for example, then when the same primary optical element is used, the enlargement increases Light emission surface is the beam angle range of the primary optical element. In this way, not only the central area of the cover is illuminated, but light also hits the edge area of the cover. The enlargement of the emission area of the primary optical element can now be achieved by the The coverage described here and the redirection of light towards the central area are compensated for, so that the light intensity distribution curves for lighting modules with different configurations only differ slightly from one another.
  • the cover is a translucent body that can have optical properties. This means that the cover can be intended to optically influence passing light, for example at least partially deflecting and/or concentrating and/or scattering it.
  • the cover is designed as a cover for the lighting module.
  • the lighting module includes a large number of light sources, to which the cover is arranged in the direction of emission of the light sources.
  • the cover includes a central region and an edge region that adjoins the central region. This means that the coverage can, at least mentally, be divided into at least two areas - the middle area and the edge area.
  • the cover can be designed in one piece, that is, the central region and the edge region are then formed integrally with one another and contain the same material or consist of the same material.
  • the middle area and the edge area of the cover can differ from each other, for example, by different optical properties.
  • the edge and middle areas of the cover can have different shapes.
  • the central region can be curved, for example round or oval, in a top view and for the edge region to extend completely around the central region.
  • the edge area then forms, for example, a ring around the central area.
  • the central region can be rectangular in a top view.
  • the cover can then, for example, comprise two edge regions which extend on both sides of the central region along a main extension direction of the central region.
  • the central region can be annular in a plan view and for an edge region to extend in a ring shape on the outer side of the central region and for a further edge region to extend in a ring shape on the inner side of the central region.
  • the cover is designed to be translucent.
  • the cover is made of a translucent material.
  • the cover comprises a clear matrix material that can be filled with other substances such as light-scattering and/or light-reflecting particles, dyes, pigments or conversion substances. It is also possible that the matrix material is unfilled.
  • the matrix material includes a glass or a plastic material such as PMMA.
  • the edge region has structuring on an outside, in particular a light entry side, of the cover.
  • the light entry side of the cover is the side that faces the at least one light source of the light module when the cover is in use in a lighting module. This means that the light generated in the lighting module during operation enters the cover on the light entry side and leaves the cover at least partially on a light exit side of the cover facing away from the light entry side.
  • the edge region has, for example, structuring at least on the light entry side.
  • the edge region can have a structuring on a light exit side facing away from the light entry side.
  • the structuring can include, for example, elevations and indentations in the material of the cover.
  • the structuring can be designed in the form of slats, grooves and/or prisms, which can be wave-shaped or jagged in a cross section through the cover.
  • the structuring in the edge area has structure sizes that are large compared to the wavelength of the light that enters the cover on the light entry side.
  • a structure size is, for example, a width, a length or a distance between two elements of the structure.
  • the structure sizes are at least 1 mm, in particular at least 2 mm, in particular at least 4 mm.
  • the structuring is designed to reduce the angle between the direction of the incident light and a perpendicular to a main extension plane of the central region for the light emitted by the edge region.
  • the edge region emits the light, for example, through reflection, scattering and/or refraction of the light striking the structure.
  • the central region of the cover has a main extension plane which can run at least in places parallel to a top surface of the central region arranged on the light exit side.
  • the perpendicular to the main extension plane of the central region can, for example, be a perpendicular to the central region, provided that its outer surface is smooth and unstructured.
  • the structuring can in particular be designed to direct incident light towards the central region. This means that when light passes through the cover in the area of the structuring, it is deflected in such a way that the direction of a light beam path of the light changes in the direction of the central area. This means that, due to the structuring, a larger proportion of the light passing through is redirected towards the central region than would be the case without the structuring.
  • the edge region now ensures that light passing through it is at least partially directed in the direction of the vertical or a plumb line that runs perpendicular to the main extension plane. The structured edge region therefore ensures a reduction in the lateral light emission by reducing the angle between the direction of the incident light and the perpendicular to the main extension plane of the central region for the light emitted by the edge region.
  • Lighting modules which include, for example, light-emitting diodes as light sources, can be made available in different luminous flux packages.
  • the light sources can be dimmed, for example. If higher luminous flux packages are required, with larger luminous fluxes, the light sources can, for example, be supplied with more current.
  • the light sources for example modules with light-emitting diodes, can be replaced. These can be replaced by modules with a larger number of light-emitting diodes.
  • the cover described here is based, among other things, on the idea that, due to the edge region, which has a structure on a light entry side of the cover, which is designed to direct incident light towards the central region, the lighting module can be equipped with a different number of different numbers of light-emitting diodes is possible without changing the light intensity distribution curve of the light emitted by the light module during operation too much.
  • the cover forms, for example, part of a two-part optic.
  • the structuring is designed to direct the incident light through refraction and/or total reflection.
  • the structuring is designed to optically influence the light passing through, wherein the structuring can include structures that are designed for light refraction and/or structures that are designed for total reflection.
  • individual structures can also be designed for refraction and total reflection of the light.
  • the edge region has a width and the central region has a width, the width of the edge region being at most 20% of the width of the central region.
  • the width is measured, for example, transversely or perpendicular to a main extension direction of the respective area.
  • the proportion of the edge area in the coverage is relatively small compared to the central area.
  • the central region it is possible for the central region to also have a larger area, measured in a main plane of extension of the central region, than the area of the edge region in a main plane of extension edge area. This makes it possible for a large portion of the coverage, namely the central area, to be available for further optical influence on the light passing through.
  • there may be further structuring which is designed to optically influence the light passing through.
  • the edge region is bent relative to the central region in the direction of the light entry side.
  • the structuring in the edge area can then be carried out, for example, with smaller structure sizes or with fewer structures than would be the case if the edge area was not bent.
  • the edge region and the central region for example, form an angle of at least 30° and at most 70° with one another.
  • the structuring of the edge region comprises serrations in a material of the cover, the serrations extending in places towards the central region.
  • the structuring includes structures that are jagged in cross section and can extend, for example, as lamellas along the entire edge area.
  • the points have a base where they are widest and a point.
  • the serrations can be curved from the base towards the tips towards the middle area. This supports the optical effect of the structuring by redirecting the incident light towards the central area.
  • Any structuring can, for example, include three or more points.
  • the prongs can differ from one another in their size, for example in their cross-sectional area or in terms of the volume of the slats, and can, for example, be geometrically similar to one another.
  • the structuring can have a sawtooth-like cross-section, for example.
  • the cover is smooth on a light exit side. This means that the cover does not include any, for example optical, structuring on a light exit surface. Furthermore, the cover does not include any larger recesses on the light exit side, such as a trench-shaped recess. Due to the smooth light exit side, the cover is particularly easy to maintain and can easily be cleaned of dirt and dust, for example by wiping.
  • the central region has a structure on the light entry side.
  • the structuring can be, for example, optical structuring.
  • the structuring on the light entry side in the area of the central region can, among other things, serve to avoid direct images of the light sources of the light module on the light exit surface and improve the luminance on the cover.
  • the cover comprises two edge regions which are arranged on opposite sides of the central region.
  • the central region can, for example, be rectangular and elongated or ring-shaped.
  • the edge areas limit the Middle area laterally and direct light towards the middle area.
  • the edge areas can, for example, be designed similarly. For example, they can be designed symmetrically to one another with respect to a longitudinal center plane through the central region.
  • each primary optical element is arranged downstream of a group of one, two or three light-emitting diodes. This means that the same primary optical element can be used even if the lighting module is equipped with a different number of light-emitting diodes.
  • the groups of light-emitting diodes form the light sources of the light module.
  • each primary optical element is part of a lens cover, the primary optical elements of a lens cover being formed in one piece with one another.
  • some or all of the primary optical elements of the lighting module can be combined to form a lens cover in which they are connected to one another in one piece.
  • the lens cover can be produced, for example, by injection molding. Alternatively, it is possible to provide a lens cover that has an extruded profile.
  • the lens cover covers two or more groups of light-emitting diodes. That is, the lens cover may include two or more primary optical elements, each primary optical element including a group of light-emitting diodes with one, two or three light-emitting diodes. In this way, it is possible to have a large number of light-emitting diodes by adjusting the lens cover to the light-emitting diodes Primary optical elements to be provided without the primary optical element having to be adjusted to the assigned light-emitting diode or group of light-emitting diodes for each group of light-emitting diodes or for each light-emitting diode.
  • a light intensity distribution curve of the light emitted during operation by the lighting module on the light exit side of the cover is essentially independent of the number of light-emitting diodes per group. This means that due to the cover described, it is possible to provide a higher luminous flux package by increasing the number of light-emitting diodes in the light-emitting module without significantly changing the light intensity distribution curve.
  • the distance between adjacent primary lenses is the same.
  • the luminous intensity values in candela are related to 1000 lm luminous flux. They can therefore be specified in the unit cd/klm.
  • the resulting light intensity distribution curve surrounds an area in the polar diagram, for example for the C0°/C180° plane or for the C90°/C270° plane.
  • the fact that the light intensity distribution curve of the light emitted during operation by the lighting module on the light exit side of the cover is "essentially" independent of the number of light-emitting diodes per group can mean that these areas have an overlap of at least for the same levels of the lighting module with different configurations of the lighting module 85%, in particular at least 90% or at least 95%.
  • the light intensity distribution curves for different configurations of the lighting module are due to the Design of the cover is similar to one another and includes areas of similar size.
  • a lamp is also specified.
  • the luminaire comprises a connection carrier with a plurality of light-emitting diodes that are designed to emit light.
  • the connection carrier is, for example, a carrier for the light-emitting diodes, via which they can also be contacted electrically.
  • the lamp comprises a plurality of primary optical elements, with a primary optical element arranged downstream of each light-emitting diode, and a cover as described here, which is arranged on the side of the light-emitting diodes facing away from the primary optical elements.
  • the luminaire comprises fastening elements that hold the connection carrier and the primary optical elements together in the luminaire.
  • the fastening elements are, for example, sections of a sheet metal on which the connection carrier is arranged.
  • Such fasteners are, for example, in the European patent application EP 17171954.5 described, which is hereby expressly incorporated by reference.
  • the Figure 1A shows a schematic sectional view of an exemplary embodiment of a lighting module described here or a lamp described here with a cover described here.
  • the Figure 1B shows the exemplary embodiment Figure 1A with the associated beam path when the light module is in operation.
  • the lighting module Figures 1A and 1B is an elongated lighting module that has a main extension direction, for example perpendicular to the image plane.
  • the Figures 1A and 1B show a sectional view transverse to the longitudinal axis of the lighting module in the C0°/C180° plane.
  • the lighting module includes the cover 1.
  • the cover 1 includes the central region 12.
  • the central region 12 is adjoined to the side by an edge region 11a, 11b.
  • Each edge region 11a, 11b has a structure 2 on a light entry side 1a of the cover 1.
  • the structuring 2 includes for each edge region 11a, 11b a large number of structures 21, which in cross section are in particular spikes which can extend as lamellas over the entire length of the cover 1.
  • the structuring 2 extends in several slats in the main extension direction of the cover 1.
  • the structuring 2 has a multiplicity of spikes 21 in cross section, which are formed from the material of the cover 1.
  • the prongs 21 incline in places towards the central region 12, which enhances the optical effect becomes.
  • the incident light 7 is redirected at the structuring 2 by refraction and/or total reflection.
  • the cover 1 is formed in one piece, so that the edge regions 11a, 11b and the central region 12 are integrally connected to one another.
  • the cover is formed, for example, with a translucent, clear matrix material 14, into which particles 15 can be introduced, which can be, for example, radiation-scattering, radiation-reflecting or radiation-absorbing particles.
  • the density of the particles can vary within the cover.
  • the density in the central region 12 can be particularly high in order to prevent direct imaging of the light-emitting diodes 5 of the light-emitting module on the light exit side 1b of the cover 1.
  • the middle region 12 has a width b2 which is greater than the width b1 of the edge regions 11a, 11b.
  • the width b1 of the edge regions 11a, 11b can, for example, be a maximum of 20% of the width b2 of the central region 12.
  • the edge regions 11a, 11b are bent compared to the central region and extend towards the light entry side 1a.
  • the lighting module can be designed symmetrically to a central plane that runs parallel to the C90°/C270° plane, i.e. in the longitudinal direction of the lighting module.
  • the lighting module further comprises a housing body 8.
  • the housing body 8 comprises a counterpart 81, which is used, for example, to accommodate a fastening means, for example a snap hook 13, in particular a linear hook, is provided with which the cover can be attached to the housing body (see also the Figure 5 ).
  • the lighting module further comprises a connection carrier 4, which is arranged on a bottom surface of the housing body 8 facing the cover 1.
  • the connection carrier 4 is, for example, a printed circuit board.
  • the light-emitting diodes 5 are attached to the connection carrier 4 and are electrically connected.
  • the light-emitting diodes 5 can be combined into groups 50 of light-emitting diodes 5.
  • Each group 50 of light-emitting diodes 5 is followed by a primary optical element 6, which is, for example, a lens.
  • Each light-emitting diode 5 comprises at least one light-emitting diode chip or consists of at least one light-emitting diode chip.
  • the groups 50 of light-emitting diodes 5 are arranged, for example, along the main direction of extension of the module.
  • a single row arrangement of the light-emitting diodes 5 is given. This means that each group 50 of light-emitting diodes 5 includes exactly one light-emitting diode 5.
  • the light-emitting diode 5 is, for example, arranged centered on the longitudinal central axis of the light-emitting module.
  • the Figure 1B shows the light module during operation of the light-emitting diode 5.
  • Light 7 is emitted onto the central region 12 of the cover 1 through the primary optical elements 6, whereby a certain illuminance is generated.
  • the beam angle range of the primary optical elements 6 is selected such that little or no light hits the edge region 11a, 11b of the cover 1 and only the central region 12 is illuminated.
  • each group 50 of light-emitting diodes 5 comprises two light-emitting diodes 5 which are arranged next to one another.
  • the light emission area of the group 50 of light-emitting diodes 5 is increased, for example doubled.
  • the remaining components, such as the primary optical elements 6 or the cover 1 remain unchanged. Due to the increase in the light exit area of the group 50 of light-emitting diodes 5, the emission angle range of the primary optical elements 6 is increased. Part of the light 7 now hits the edge area 11a, 11b and is optically influenced there by the structuring 2 in such a way that the light in Direction of the central region 12 is directed when exiting the cover 1.
  • the cover 1 is designed in its edge regions 11a, 11b by the structuring 2 in such a way that the light is at least partially deflected to the central region 12.
  • the structuring 2 is therefore designed to reduce the angle between the direction of the incident light and a perpendicular n to a main extension plane of the central region 12 for the light emitted by the edge region.
  • the graphic plots of the Figures 3A to 3D show light intensity distribution curves in the polar diagram.
  • the Figures 3A and 3B show light intensity distribution curves, which are only generated by the primary optical elements 6, for the single-row lighting module Figures 1A and 1B in the Figure 3A and the two-row lighting module Figures 2A and 2B in the Figure 3B .
  • the light intensity distribution curve 71 is in the CO°/C180° plane and the light distribution curve 72 is in the C90°/C270° plane, shown.
  • the illustrations show the Figures 3C and 3D the corresponding light intensity distribution curves generated by the second optics for a single-row lighting module, Figure 3C and a two-row light module, Figure 3D .
  • the light intensity distribution curves 71, 72 for the exemplary embodiments of Figures 1A, 1B on the one hand and the Figures 2A, 2B on the other hand they can hardly be distinguished from each other.
  • the light intensity distribution curves 71, 72 of each level include areas in the polar diagrams shown that are almost identical for the different exemplary embodiments of the lighting module and have an overlap of at least 90 60.
  • the exemplary embodiment of the Figures 4A and 4B shows schematic sectional views of a lighting module or a lamp described here, which differs from the lighting module of the exemplary embodiment Figures 2A and 2B differs in that each group 50 of light-emitting diodes 5 now includes three light-emitting diodes 5. This results in a three-row design of the lighting module.
  • the light intensity distribution curves 71, 72 of the light 7 emitted during operation by the lighting module on the light exit side 1b of the cover 1 are essentially the same as those Light intensity distribution curves 71, 72 as shown in the Figures 3C and 3D are shown.
  • the schematic perspective representation of the Figure 5 shows an exemplary embodiment of a lighting module described here or a lamp described here with a cover 1 described here, in which the middle part 12 of the cover 1 has a structuring 3 on the light entry side 1a.
  • the structuring 3 is, for example, wave-shaped and ensures that no direct images of the light-emitting diodes 5 appear on the light exit surface on the light exit side 1b of the cover 1.
  • particles of a volume-dispersing material for example Evonik DF21 material
  • Evonik DF21 material can be introduced into the matrix material 14 of the cover 1.
  • the cover 1 can be attached to the housing body 8 by means of a snap hook 13, which has a counterpart 81 for this.
  • the connection between the cover 1 and the housing body 8 can be formed by snapping or pushing in the cover 1.
  • the lighting module Figure 5 further comprises a lens cover 60, which comprises a plurality of lenses 6, each lens 6 being followed by a group 50 of light-emitting diodes 5.
  • a corresponding lens cover 60 in which each primary optical element 6 of the lens cover 60 covers exactly one group with a light-emitting diode chip 5, is also shown in the perspective view Figure 7 shown.
  • the lens cover 60 can be manufactured, for example, by injection molding, so that the primary optics 6 of Lens cover 60 are integrally connected to each other. Due to the use of a cover described here, the lens cover 60 can be used for groups 50 of light-emitting diodes 5 with one, two or three light-emitting diodes 5 without the light distribution curve on the light exit side 1b of the cover 1 changing significantly.
  • connection carrier 4 which in turn is arranged on the sheet metal 90.
  • connection carrier 4 and the primary optical elements are held together in the lamp or in the lighting module via fastening elements 91, which are, for example, sections of the sheet metal 90.
  • the structuring 2 in the edge regions 11a, 11b is each formed by TIR (Total Internal Reflection) structures. Furthermore, the cover 1 has no kink in the edge regions 11a, 11b, but is flat on its light exit side 1b. In order to still achieve a reliable deflection of the incident light in the direction of the central region 12, the structuring 2 is formed by totally reflecting structures which, in cross section, are spikes 21 which are inclined towards the central region 12.
  • the structural size of the structuring for example the volume of the slats of the structuring 2 and/or the width and/or the height of the prongs 21, is larger than for the exemplary embodiments with bent edge regions 11a, 11b in order to achieve the desired steering effect of the structuring to reach.
  • the structuring 2 in the edge regions 11a, 11b can also achieve a targeted change in the external light rays.
  • the light intensity distribution curves also for the case of single-row assembly, as in the exemplary embodiments Figures 1A and 1B is shown, turns out to be more tightly bundled. This is particularly advantageous for higher luminous flux packages, as these are often mounted relatively high in the application, meaning that a narrowly focused light distribution curve is advantageous for illuminating a specific area.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP18202639.3A 2017-10-27 2018-10-25 Abdeckung für ein leuchtmodul, leuchtmodul und leuchte Active EP3477192B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017125245.2A DE102017125245A1 (de) 2017-10-27 2017-10-27 Abdeckung für ein Leuchtmodul, Leuchtmodul und Leuchte

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EP3477192A1 EP3477192A1 (de) 2019-05-01
EP3477192B1 true EP3477192B1 (de) 2023-09-27
EP3477192C0 EP3477192C0 (de) 2023-09-27

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EP (1) EP3477192B1 (pl)
DE (1) DE102017125245A1 (pl)
PL (1) PL3477192T3 (pl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7394313B2 (ja) * 2019-08-08 2023-12-08 パナソニックＩｐマネジメント株式会社 レンズおよび照明器具
JP7394335B2 (ja) * 2019-08-08 2023-12-08 パナソニックＩｐマネジメント株式会社 レンズおよび照明器具
DE202019105265U1 (de) * 2019-09-24 2021-01-04 Zumtobel Lighting Gmbh Leuchte mit Bereich zur flächigen Lichtabgabe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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