EP4177517A1 - Optique pour un luminaire et luminaire doté d'une optique - Google Patents

Optique pour un luminaire et luminaire doté d'une optique Download PDF

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Publication number
EP4177517A1
EP4177517A1 EP22206156.6A EP22206156A EP4177517A1 EP 4177517 A1 EP4177517 A1 EP 4177517A1 EP 22206156 A EP22206156 A EP 22206156A EP 4177517 A1 EP4177517 A1 EP 4177517A1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
optics
carrier
light
prisms
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.)
Pending
Application number
EP22206156.6A
Other languages
German (de)
English (en)
Inventor
Dirk Mania
Michael Krajka
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.)
RIDI Leuchten GmbH
Original Assignee
RIDI 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 RIDI Leuchten GmbH filed Critical RIDI Leuchten GmbH
Publication of EP4177517A1 publication Critical patent/EP4177517A1/fr
Pending 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
    • 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
    • F21V5/008—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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/025—Elongated bases having a U-shaped cross section
    • 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
    • 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

  • the present invention relates to an optical system for a lamp according to the preamble of claim 1.
  • the invention also relates to a lamp equipped with such an optical system.
  • This optic is suitable for use in a lamp, which in particular can be a component of a light strip having a number of such lamps.
  • the optics have an optics body that is straight and elongated with respect to its longitudinal direction and is made of a light-conducting and light-transmissive plastic.
  • the optics body has on each of its longitudinal side edges facing away from one another a latching contour, with the aid of which the optics can be fixed to a carrier body of the lamp, in particular by means of a clip or latching connection.
  • the optic body has a central region extending in the longitudinal direction in the middle between the longitudinal side edges.
  • the optic body has a side area extending in the longitudinal direction on both sides of the central area and between the longitudinal side edges. On its inner side, the optic body has a longitudinal lens in the central area for feeding in light, which lens extends in the longitudinal direction of the optic.
  • the optic body has different relief structures for light emission on its outside, facing away from the inside, in the middle area and in the two side areas. When the optics are installed, their inside faces light-emitting elements of the luminaire, while the outside of the optics faces away from these light-emitting elements.
  • the optic body has transverse prisms for light emission on its outside over the entire width of the optic body, which follow one another in the longitudinal direction of the optic.
  • the present invention deals with the problem of specifying an improved or at least another embodiment for an optical system of the type mentioned above or for a lamp equipped therewith, which is characterized by efficient light emission and/or reduced production costs.
  • the invention is based on the general idea of combining transverse prisms with longitudinal prisms on the outside of the optic body. Specifically, it is proposed that the optic body has transverse prisms for light emission on its outside in the central area, which follow one another in the longitudinal direction of the optics, while the optic body has longitudinal prisms for light emission on its outside in the side areas, which follow one another in the transverse direction of the optics.
  • the proposed combination of transverse prisms in the central area and longitudinal prisms in the side areas results in particularly efficient light emission with a high-quality, homogeneous illumination effect.
  • the transverse prisms and the longitudinal prisms are formed integrally on the optics body, as a result of which the efficient optics can also be produced comparatively inexpensively.
  • the optics can be produced by an extrusion process, with at least the transverse prisms, preferably also the longitudinal prisms, being produced in an embossing process by reshaping be, which immediately follows the extrusion, so that the plastic of the optical body is still sufficiently warm and flowable for the forming.
  • the optic body can have a flat, plate-like basic shape from which the locking contours protrude on the outside and/or on the inside and from which the longitudinal lens protrudes on the inside.
  • functionally different areas can be formed integrally on the optic body, which reduces the manufacturing costs.
  • the longitudinal lens can have two mutually inclined longitudinal side walls which, with respect to a height direction of the optics, begin on the inside between the transverse prisms of the central area and the longitudinal prisms of the respective side area and end in the area of the transverse prisms. It has been shown that the feeding of light into the transverse prisms and the longitudinal prisms can be improved with the aid of a longitudinal lens shaped in this way.
  • the longitudinal lens can have a longitudinal groove at its end remote from the inside, which is delimited laterally, i.e. in the transverse direction, by two opposing groove walls and on the inside, i.e. in the vertical direction, by a groove base.
  • the feeding of light into the optic body can be improved with the aid of this longitudinal groove.
  • light-emitting elements of the lamp can protrude at least partially into this longitudinal groove, so that light emitted by the light-emitting elements reaches the optic body not only via the groove base but also via the groove walls.
  • a particularly advantageous development proposes that the respective groove wall merges into the respective longitudinal side wall of the longitudinal lens at the end of the longitudinal lens remote from the inside.
  • an acute angle can be enclosed between the respective groove wall and the respective longitudinal side wall, which promotes the light-guiding function within the longitudinal lens.
  • the groove base is convex towards the groove opening or is prismatically shaped protruding towards the groove opening.
  • the proposed shape can improve the feeding of light into the optical body, in particular with regard to improved light transmission to the longitudinal prisms.
  • An embodiment is particularly advantageous in which the optic body has a longitudinal notch on its outside in the central region on both sides of the transverse prisms for light reflection in the interior of the optic body.
  • the respective longitudinal notch improves the light conduction of the optic body from the longitudinal lens to the side areas to the longitudinal prisms due to the light reflection inside the optic body. With this design, more light can be emitted via the longitudinal prisms.
  • This design also makes it possible, in particular, to increase the overall width of the optics, as a result of which a comparatively large, planar light emission can be implemented overall for the respective luminaire.
  • the width of the light optics on the outside of the optics body is dimensioned so large that the width of the optics body in the transverse direction of the optics is approximately three times the width of the longitudinal lens on the basic shape of the optics body.
  • the optic body on its outside between the transverse prisms and the longitudinal prisms of the respective side area has a flat surface portion extending in the longitudinal direction.
  • This surface section is flat on the outside of the optic body and therefore has no structure for light emission, such as prisms or the like. This supports the light transmission from the longitudinal lens to the longitudinal prisms inside the optical body.
  • the respective flat surface section can be delimited towards the transverse prisms by the longitudinal notches mentioned above, so that the respective longitudinal notch forms a transition from the transverse prisms to the respective flat surface section.
  • the respective light notch has an inner flank facing the transverse prisms and an outer flank facing away from the transverse prisms, the respective inner flank being inclined relative to the transverse direction of the optics in a range of 70° to 110°, preferably in a range from 80° to 100°, preferably in a range from 85° to 95°, in particular around 90°.
  • the respective outer flank has an inclination in a range of 30° to 60°, preferably in a range of 35° to 55°, preferably in a range of 40° to 50°, in particular of 45° relative to the transverse direction of the optics . It has been shown that such an inclination or configuration of the flanks for the longitudinal notch promotes light reflection within the optic body in order to achieve the most efficient possible light guidance within the optic body.
  • the outer flank of the respective longitudinal notch extends parallel to the adjacent longitudinal side wall of the longitudinal lens.
  • the optic body can have on its inside in each side area a holding web extending in the longitudinal direction, which has a foot area connected to the optic body and a holding area remote from the foot area, which protrudes over the longitudinal lens in a height direction of the optics.
  • a circuit board that carries light-emitting elements can be positioned and fixed with the aid of the holding webs. Due to the selected dimensioning, the holding webs protrude over the longitudinal lens in the vertical direction. In this way, for example, contact between the circuit board and in particular the light-emitting elements and the longitudinal lens can be avoided. This leads to a reduction in the thermal load on the longitudinal lens when the lamp is in operation.
  • the respective holding web is arranged at least with its foot area in the respective side area in the transverse direction of the lamp or the optics between the longitudinal lens and the longitudinal side edge.
  • the respective holding area has a bearing surface and a collar protruding from the bearing surface.
  • the support surface which extends in particular in the longitudinal direction and in the transverse direction, can be used to place a component, in particular the above-mentioned circuit board, in the vertical direction.
  • the collars bring about a lateral positioning or fixing of the component or the circuit board with respect to the transverse direction.
  • foot areas of the two holding webs have a greater distance in the transverse direction than the holding areas. This measure makes it possible to realize longitudinal lenses which have a relatively large extent in the transverse direction. A distance can also be created in the transverse direction between the retaining webs and the longitudinal lens, which simplifies the manufacture of the optics.
  • a luminaire according to the invention which is particularly suitable for use in a light strip that has several such luminaires, has an equipment carrier which has a carrier body which is elongated and rectilinear in relation to its longitudinal direction, which has two opposite carrier sides, a carrier base which connects the carrier side to one another and has a carrier opening opposite the carrier base, which is open to a carrier interior space delimited by the carrier base and the two carrier sides.
  • the lamp also has at least one circuit board which is arranged in the carrier interior on the carrier floor and which carries a multiplicity of light-emitting elements which are arranged one behind the other in a longitudinal direction of the lamp.
  • the lamp is equipped with at least one optic of the type described above, which is fixed with its latching contours on the carrier sides and thereby closes the carrier opening.
  • the light generated by the light-emitting elements is fed into the longitudinal lens of the optics and emitted on the outside of the optics body via the transverse prisms and the longitudinal prisms.
  • the optics can be supported on the circuit board with holding webs.
  • the contact between the optics and the circuit board ensures a predetermined relative position between the circuit board and the optics within the lamp.
  • the carrier body, the circuit board and the optics can be matched to one another in such a way that the optics fixed to the carrier body presses the circuit board against the carrier base with pretension.
  • This measure defines the relative position between the circuit board and the carrier body, as a result of which further tolerances can be eliminated and the quality of the light emission can be improved.
  • the longitudinal lens of the optics is equipped with a longitudinal groove
  • the light-emitting elements dip into this longitudinal groove. This means that virtually all of the light emitted by the light-emitting elements can be introduced into the optical body via the longitudinal lens. Accordingly, losses are reduced while efficiency increases.
  • the groove walls at the end of the longitudinal lens remote from the inside can merge into the longitudinal side walls of the longitudinal lens via end contours.
  • These end contours are now at a distance from the circuit board on both sides of the light-emitting elements, so that a gap is formed there between the circuit board and the longitudinal lens.
  • the longitudinal groove is closed by the circuit board in relation to the bottom of the groove, except for said gap, so that the light emitted by the light-emitting elements can propagate almost exclusively within the longitudinal groove and can almost completely enter the optical body.
  • the light-emitting elements are preferably light-emitting diodes.
  • the lamp can be equipped with an end cap that covers a longitudinal end of the equipment carrier and the optics, the end cap having a cap base extending in the vertical direction and in the transverse direction and a cap collar protruding therefrom in the longitudinal direction.
  • the cap collar rests on the carrier sides and on the outside of the optic body from the outside.
  • the end cap forms a seal on the respective longitudinal end of the equipment carrier.
  • the end cap can have a transverse web protruding in the longitudinal direction from the cap base, which in the installed state of the end cap is on a side facing away from the interior of the carrier the outside or top of the tray. As a result, the sealing effect can be improved.
  • the end cap can have a main support structure for each carrier side that protrudes from the cap base and rests from the inside on the respective carrier side and on an inside of the carrier base that faces the interior of the carrier. This improves the seal over the optics.
  • the end cap has an additional support structure protruding from the cap base for each main support structure, which rests against the inside of the optic body when the end cap is in the assembled state.
  • the respective additional support structure can be designed in such a way that it rests on both sides of the respective holding web on the inside of the optic body and/or on the respective holding web and/or on the longitudinal lens.
  • the additional support structure can have an interruption for mutual contact with the respective holding web, into which the holding web penetrates axially.
  • the respective main support structure has a latching lug which engages or snaps into a latching opening formed in the carrier base when the end cap is installed and secures the end cap against axial removal from the device carrier.
  • figure 1 has a lamp 1 that is in figure 1 is reproduced in a cross-section running transversely to the longitudinal direction X, a support profile 2, at least one current-carrying rail 3, at least one device mount 4, at least one optics 5 and at least one plug 6.
  • the longitudinal direction X is in figure 2 indicated by a double arrow and is in the figures 1 , 3 , 5, 6 , 8th , 10 and 11 perpendicular to the drawing plane.
  • the lamp 1 has an elongated and rectilinear shape with respect to the longitudinal direction X.
  • the lamp 1 can be used in particular in a light strip 7, in which several such lamps 1 are arranged one behind the other in the longitudinal direction X and directly adjoin one another.
  • the lamp 1 or the light band 7 can be provided for suspended ceiling mounting.
  • a ceiling 8 is shown, on which the light strip 7 or the lights 1 are fastened or suspended via a number of fastening elements 9 .
  • the device carrier 4 has a carrier body 10 that is elongated and rectilinear with respect to the longitudinal direction X, which has two carrier sides 11 that are opposite one another with respect to the transverse direction Y, and one that connects the two carrier sides 11 to one another Carrier base 12 and a carrier base 12 with respect to a height direction Z opposite carrier opening 13.
  • the transverse direction Y and the vertical direction Z are in the figures 1 , 3 and 5 to 11 indicated by double arrows and are there in the drawing plane.
  • the transverse direction Y runs perpendicular to the longitudinal direction X.
  • the vertical direction Z runs perpendicular to the longitudinal direction X and perpendicular to the transverse direction Y.
  • the longitudinal directions X of the light 1, the support profile 2, the device mount 4 and the optics 5 run parallel to one another in the assembled state and become uniform marked with X. The same applies to the transverse direction Y and the vertical direction Z.
  • the carrier base 12 and the two carrier sides 11 delimit a carrier interior 14 towards which the carrier opening 13 is open.
  • the optics 5 are fixed to the carrier sides 11, expediently by a latching connection 15 or clip connection 15. The optics 5 closes the carrier opening 13 in the height direction Z.
  • the optics 5 has an optics body 16 that is straight and elongated with respect to the longitudinal direction X and consists of a light-conducting and light-transmissive plastic.
  • the optic body 16 can be made or consist of acrylic glass. It is also conceivable to produce the optic body 16 from a polycarbonate.
  • the optic body 16 has a latching contour 18 on each of its longitudinal side edges 17 facing away from one another with respect to the transverse direction Y, which in the assembled state according to FIG figure 1 form the snap-in connections 15 for fixing the optic body 16 or the optic 5 with corresponding counter-locking contours 19 of the carrier sides 11 .
  • sealing areas 42 can be formed on the optic body 16, on its longitudinal side edges 17, which in the installed state form a seal on the carrier sides 11 or on the counter-locking contours 19 and in in the transverse direction Y. These sealing areas 42 can be molded onto the optics body 16 .
  • the sealing areas 42 can be formed integrally on the optics body 16 by means of a 2K method, for example in an extrusion process for producing the optics body 16, which can be designed as a 2K extrusion for this purpose.
  • 2K stands for two components, ie two different plastics, so that a soft plastic suitable for the sealing function can be selected for the sealing area 42 .
  • the optical body 16 has an in figure 3 center region 20 marked by a curly bracket. Furthermore, the optical body 16 has a side region 21 on each side of the central region 20 and between the longitudinal side edges 17 .
  • the optics body 16 has an inner side 22 which, when the optics 5 are in the mounted state, faces the carrier interior 14 and faces away from the surroundings 24 of the lamp 1 .
  • the optic body 16 has an outer side 23 which faces away from the inner side 22 and which faces away from the carrier interior 14 in the mounted state of the optic 5 and faces the surroundings 24 of the lamp 1 .
  • the optic body 16 has on its inner side 22 in the central region 20 a longitudinal lens 25 for feeding light into the optic body 16, which extends in the longitudinal direction X. Furthermore, the optic body 16 has transverse prisms 26 on its outer side 23 in the central region 20 for light emission from the optic body 16, the transverse prisms 26 following one another in the longitudinal direction X and extending in the transverse direction Y. In contrast to this, the optic body 16 has longitudinal prisms 27 for light emission from the optic body 16 on its outer side 23 in the two side regions 21 , the longitudinal prisms 27 succeeding one another in the transverse direction Y and extending in the longitudinal direction X. While the transverse prisms 26 in the central area 20 ensure homogeneous light emission in in the longitudinal direction X, the longitudinal prisms 27 in the side areas 21 each produce a homogeneous light emission in the transverse direction Y.
  • the optical body 16 has a flat, plate-like basic shape 28 .
  • the latching contours 18 protrude from this basic shape 28 on the inside 22 .
  • the latching contours 18 can additionally or alternatively also protrude from the basic shape 28 on the outside 23 .
  • the longitudinal lens 25 protrudes from the basic shape 28 in the height direction Z on the inside 22 .
  • the longitudinal lens 25 has two longitudinal side walls 29 which are inclined towards one another and which each begin on the inside 22 between the transverse prisms 26 of the central region 20 and the longitudinal prisms 27 of the respective side region 21 .
  • the longitudinal side walls 29 end in the area of the transverse prisms 26.
  • the optics 5 or the optics body 16 is expediently mirror-symmetrical with respect to a plane of symmetry 30, which is spanned by the vertical direction Z and by the longitudinal direction X and which is arranged centrally with respect to the transverse direction Y.
  • the longitudinal side walls 29 are inclined in cross-section relative to the vertical direction Z in a range from 30° to 60°, preferably in a range from 35° to 55°, preferably in a range from 40° to 50°. In the example shown, the longitudinal side walls 29 are inclined by approximately 45° in cross section relative to the height direction Z.
  • the longitudinal lens 25 has a longitudinal groove 31 extending in the longitudinal direction X at its end remote from the inside 22 .
  • the longitudinal groove 31 is delimited laterally, ie in the transverse direction Y, by two opposing groove walls 32 and towards the inside 22, ie in the vertical direction Z, by a groove base 33.
  • the groove walls 32 merge into one of the longitudinal side walls 29 at the end of the longitudinal lens 25 remote from the inside 22, i.e. at the groove opening 43, with the transition being rounded here and forms an end contour 34, which is described further below is described in more detail.
  • the groove base 33 can be convex in shape towards the groove opening 43 .
  • the groove base 33 is prismatically shaped in such a way that it protrudes into the longitudinal groove 31 at an obtuse angle.
  • the optics 5 presented here are also characterized in particular by the fact that the optics body 16 has on its outer side 23 in the central region 20 on both sides of the transverse prisms 26 a longitudinal notch 35 which extends in the longitudinal direction X and which is configured for light reflection inside the optics body 16. As a result, the conduction of light within the optical body 16 from the longitudinal lens 25 to the side areas 21 and thus to the longitudinal prisms 27 is supported.
  • the respective longitudinal notch 35 has an inner flank 36 facing the transverse prisms 26 and an outer flank 37 facing away from the transverse prisms 26.
  • the inner flank 36 and the outer flank 37 are inclined towards one another in such a way that the respective longitudinal notch 35 has a triangular cross-section with respect to the longitudinal direction X.
  • the respective inner flank 36 is inclined relative to the transverse direction Y in a range from 70° to 110°, preferably in a range from 80° to 100°, preferably in a range from 85° to 95°. In the examples shown, the inner flank 36 is inclined by about 90° relative to the transverse direction Y and thus extends essentially parallel to the vertical direction Z.
  • the respective outer flank 37 is inclined relative to the transverse direction Y in a range of 30° to 60° , preferably in a range from 35° to 55°, preferably in a range from 40° to 50°. In the examples shown, the respective outer flank 37 is inclined by approximately 45° with respect to the transverse direction Y. Accordingly, in the examples shown here, the respective outer flank 37 extends essentially parallel to the adjacent longitudinal side wall 29 of the longitudinal lens 25.
  • the longitudinal lens 25 extends in the transverse direction Y, measured at the basic shape 28, approximately over 1/3 of the entire width of the optic body 16.
  • the optic body 16 can expediently have a flat surface section 38 on its outer side 23 in the transverse direction Y between the transverse prisms 26 and the longitudinal prisms 27, which is characterized by a flat outer surface or a flat outer contour.
  • the respective surface section 38 therefore has no light-emitting contour or light-emitting structure, as a result of which the conduction of light inside the optic body 16, in particular by reflection, from the longitudinal lens 25 to the longitudinal prisms 27 is improved.
  • the lamp 1 can also be equipped with at least one circuit board 39 which is arranged on or in the equipment carrier 5 .
  • the circuit board 39 is expediently arranged in the carrier interior 14 on the carrier floor 12 and held thereon.
  • the circuit board 39 carries a multiplicity of light-emitting elements 41, which are preferably light-emitting diodes.
  • the light-emitting elements 41 are arranged one behind the other in the longitudinal direction X on the circuit board 39 so that they form a rectilinear row.
  • the arrangement of the light-emitting elements 41 and the circuit board 39 is matched to the equipment carrier 4 and the optics 5 in such a way that the light-emitting elements 41 can impinge on the longitudinal lens 25 with light, so that the light emitted by the light-emitting elements 41 during operation of the lamp 1 is fed into the optical body 16 via the longitudinal lens 25 .
  • the optic body 16 can have on its inner side 22 in each side area 21 a holding web 44 extending in the longitudinal direction X, which has a foot area 45 connected to the optic body 16 and a free-standing holding area remote from the foot area 45 46, which protrudes beyond the longitudinal lens 25 in the height direction Z of the optics 5.
  • the circuit board 39 can, for example, be positioned and fixed to the equipment carrier 4 with the aid of the holding webs 44 . Due to the selected dimensioning, the holding webs 44 protrude over the longitudinal lens 25 in the height direction Z.
  • a gap 40 is formed in the height direction Z between the longitudinal lens 25 and the circuit board 39 .
  • the holding areas 46 of the holding webs 44 can laterally enclose the circuit board 39 on its longitudinal side edges.
  • the respective holding area 46 can have a bearing surface 47 and a collar 48 protruding from the bearing surface 47 .
  • the bearing surface 47 extends in the longitudinal direction X and in the transverse direction Y and is used for placing the circuit board 39 in the vertical direction Z.
  • the collars 48 bring about a lateral positioning or fixing of the circuit board 39 with respect to the transverse direction Y.
  • the circuit board 39 can thus be fixed to the optics 5 in order to be able to attach the optics 5 with the circuit board 39 to the equipment carrier 4 .
  • the circuit board 39 is also fixed to the device carrier 4 by the latching by means of the latching connections 15 of the optics 5 on the device carrier 4 . In particular, it can be held prestressed on it.
  • the foot areas 45 of the two holding webs 44 are at a greater distance from one another in the transverse direction Y than the holding areas 46 exhibit.
  • the longitudinal lens 25 is equipped with the longitudinal groove 31
  • the light-emitting elements 41 dip into the longitudinal groove 31 .
  • the carrier body 10, the circuit board 39 and the optics 5 are matched to one another in such a way that the optics 5 fixed to the carrier body 10 presses the circuit board 39 against the carrier base 12 with a pretension.
  • This prestressing can be achieved in particular by an elastic deformation of the holding webs 44, which is favored by their kink 49.
  • the transitions of the groove walls 32 into the longitudinal side walls 29 of the longitudinal lens 25 are designed as end contours 34 .
  • These end contours 34 are rounded in cross-section to the longitudinal direction X and, in particular, are provided with a radius.
  • the end contours 34 are spaced apart from the circuit board 39 on both sides of the light-emitting elements 41 by appropriate coordination with the holding webs 44 in order to form the gap 40 in each case.
  • the groove walls 32 are inclined in cross section to the longitudinal direction X relative to the height direction Z in a range from 5° to 30°, preferably in a range from 10° to 20°, in particular about 15°.
  • the lamp 1 can be equipped with an end cap 50, which covers a longitudinal end 51 of the equipment carrier 4 and the optics 5, the end cap 50 having a cap base 52 extending in the vertical direction Z and in the transverse direction Y and a cap base 52 protruding therefrom in the longitudinal direction X Cap collar 53 has.
  • the cap collar 53 is according to the 8 and 10 in the mounted state of the end cap 50 from the outside on the carrier sides 11 of the device carrier 4 and on the outside 23 of the optical body 16 .
  • the end cap 50 can extend in the longitudinal direction X from the cap base 52 have protruding transverse web 54 which, in the mounted state of the end cap 50 , bears against an outside or top side of the carrier base 12 facing away from the carrier interior 14 .
  • the end cap 50 can have a main support structure 55 protruding from the cap base 52 which bears from the inside on the respective carrier side 11 and on an inside of the carrier base 12 facing the carrier interior 14 .
  • the embodiment shown provides for an improved sealing effect that the end cap 50 has, for each main support structure 55, an additional support structure 56 protruding from the cap base 52 in the longitudinal direction X, which rests against the inside 22 of the optic body 16 when the end cap 50 is in the assembled state.
  • the respective additional support structure 56 can expediently be designed in such a way that it rests on both sides of the respective holding web 44 on the inside 22 of the optic body 16 and on the respective holding web 44 and on the longitudinal lens 25 .
  • this additional support structure 56 can have an interruption 57, into which the holding web 44 penetrates axially when the end cap 50 is placed on axially.
  • the respective end cap 50 can have a latching lug 58 on the respective main support structure 55 which, when the end cap 50 is in the installed state, engages or snaps into a latching opening 59 formed in the carrier base 12 and thus secures the end cap 50 against axial removal from the device carrier 4.
  • the end cap 50 is also equipped with a further support structure 60 on the respective main support structure 55, which also rests on the inside of the respective carrier side 11 and provides additional support and additional sealing.
  • this additional support structure 60 is located inside the support profile 2.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
EP22206156.6A 2021-11-09 2022-11-08 Optique pour un luminaire et luminaire doté d'une optique Pending EP4177517A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321290A1 (de) * 1993-06-26 1995-01-05 Zumtobel Licht Rasterleuchte mit Vorrichtung zur Entblendung
DE102011012653B4 (de) 2011-02-28 2013-07-25 Frensch Gmbh Einbauleuchte
DE102014004472A1 (de) * 2014-03-28 2015-10-01 Nordeon Gmbh Leuchtmodul aufweisend ein optisches Element
NL2023024B1 (nl) 2019-04-29 2020-11-05 Veko Lightsystems Int B V Aan beide zijden van prismatische structuren voorziene dunwandig optisch element lens voor een lichtbron.
EP3607247B1 (fr) * 2017-04-05 2021-08-11 Zumtobel Lighting GmbH Lampe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013213768A1 (de) 2013-07-15 2015-01-15 Ridi Leuchten Gmbh Leuchte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321290A1 (de) * 1993-06-26 1995-01-05 Zumtobel Licht Rasterleuchte mit Vorrichtung zur Entblendung
DE102011012653B4 (de) 2011-02-28 2013-07-25 Frensch Gmbh Einbauleuchte
DE102014004472A1 (de) * 2014-03-28 2015-10-01 Nordeon Gmbh Leuchtmodul aufweisend ein optisches Element
EP3607247B1 (fr) * 2017-04-05 2021-08-11 Zumtobel Lighting GmbH Lampe
NL2023024B1 (nl) 2019-04-29 2020-11-05 Veko Lightsystems Int B V Aan beide zijden van prismatische structuren voorziene dunwandig optisch element lens voor een lichtbron.

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