WO2010119580A1 - Module de source lumineuse - Google Patents

Module de source lumineuse Download PDF

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Publication number
WO2010119580A1
WO2010119580A1 PCT/JP2009/062614 JP2009062614W WO2010119580A1 WO 2010119580 A1 WO2010119580 A1 WO 2010119580A1 JP 2009062614 W JP2009062614 W JP 2009062614W WO 2010119580 A1 WO2010119580 A1 WO 2010119580A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
source module
led
led light
Prior art date
Application number
PCT/JP2009/062614
Other languages
English (en)
Japanese (ja)
Inventor
安藤　章
健太郎 利根
加藤　謙治
真宏 内山
Original Assignee
株式会社光波
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 株式会社光波 filed Critical 株式会社光波
Priority to JP2011509171A priority Critical patent/JP5635495B2/ja
Publication of WO2010119580A1 publication Critical patent/WO2010119580A1/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
    • F21V7/00—Reflectors for light sources
    • F21V7/0083—Array of reflectors for a cluster of light sources, e.g. arrangement of multiple light sources in one plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V17/12—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 screwing
    • 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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21V17/005—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with keying means, i.e. for enabling the assembling of component parts in distinctive positions, e.g. for preventing wrong mounting
    • 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]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements

Definitions

  • the present invention relates to a light source module used for a light source of lighting equipment such as a street lamp and a spotlight, and more particularly to a light source module capable of enhancing the utilization efficiency of luminous flux.
  • LED light sources which are point light sources, and obtain desired illuminance usable for lighting.
  • LED light sources have been widely used as light sources to replace incandescent bulbs and fluorescent lamps.
  • a lighting device provided with a reflecting mirror member that substantially collimates a lighting light flux from the LED light source (for example, see Patent Document 1).
  • the light flux emitted from the LED light source to the object to be illuminated is reflected by the reflecting mirror member and emitted as substantially parallel light, and is not reflected by the reflecting mirror member It is configured to be emitted as direct light from the LED light source. Therefore, the luminous flux emitted from the LED light source is dispersed in the light path from the LED light source to the illumination target, and the light utilization efficiency of the irradiated luminous flux is lowered. Since the degree of dispersion changes according to the distance from the LED light source to the illumination target, it is difficult to irradiate the illumination target with all the light fluxes emitted from the LED light source with the same optical power. There was a problem that it was.
  • the present invention has been made to solve the above-mentioned conventional problems, and the specific object thereof is the utilization efficiency of the luminous flux from the LED light source regardless of the distance from the LED light source to the object to be illuminated.
  • the present invention includes an LED light source, and a light direction conversion member that converts a light flux emitted from the LED light source into a light beam parallel to the optical axis direction.
  • a light emitting unit comprising: a light emitting unit facing the LED light source, the light emitting unit emitting a light beam emitted from the LED light source as a first parallel light, and the LED
  • the light source module according to the present invention is characterized by further comprising: a second emitting unit that emits the light flux of the peripheral portion of the light flux emitted from the light source as a second parallel light.
  • the light redirecting member has a regular hexagon, and has the light redirecting portion at a portion corresponding to the vertex of the regular hexagon of the light redirecting member. It is characterized by [3]
  • the invention described in the above [2] is characterized in that the light redirecting portions are disposed on the same circumference centering on the regular hexagon.
  • the first emission part is a first incident surface which refracts and enters a light beam emitted from the LED light source.
  • the reflecting surface has a paraboloid shape
  • the second emitting surface is an annular plane formed in a direction orthogonal to the optical axis direction. It is characterized in that it has a step-like shape including a portion and an annular wall portion orthogonal to the flat portion.
  • the light direction conversion member is characterized in that a surface other than the light direction conversion part is provided with a reflective film.
  • the light direction conversion member includes a flat plate portion and side wall portions facing each other along the peripheral direction of the flat plate portion.
  • a case part is formed, and a reflective film is provided on the surface other than the light direction conversion part, and the reflective film is provided on the side wall part and the mounting surface of the substrate provided in the case part and mounting the LED light source. It is characterized by being applied.
  • a substrate on which the LED light source is mounted and a heat dissipation sheet provided on the surface of the substrate opposite to the LED light source.
  • a heat dissipation plate provided on the surface opposite to the substrate of the heat dissipation sheet, and configured as a unit in which the substrate, the heat dissipation sheet, and the heat dissipation plate are fixed on the opposite side to the light emission side of the optical member.
  • the present invention further includes an LED light source, and a light direction conversion member that converts a light flux emitted from the LED light source into a light beam parallel to the light axis direction, in order to achieve the above object, the light direction conversion member Has a polygon, and has a light redirecting portion facing the LED light source on the surface of the polygon, and the light redirecting portion performs a first parallel light flux emitted from the LED light source A first emission unit emitting light and a second emission unit emitting a light flux in the peripheral portion of the light flux emitted from the LED light source as a second parallel light. It is in the light source module.
  • all luminous fluxes from the LED light source can be effectively emitted to the lighting object with the same optical power regardless of the distance from the LED light source to the lighting object.
  • FIG. 1 is a plan view schematically showing a light source module according to a preferred first embodiment of the present invention. It is an exploded perspective view of a light source module. It is a perspective view of one component of a light source module.
  • FIG. 3 is an enlarged sectional view taken along line 3A-3A of FIG.
  • FIG. 3 is an enlarged sectional view taken along line 3B-3B in FIG.
  • It is a figure for demonstrating the emitted light of the light source module shown in FIG.
  • It is a figure which shows typically an example of the arrangement pattern of a light source module.
  • symbol 1 which shows the whole has shown typically the example of 1 structure of a light source module.
  • the basic configuration of the light source module 1 includes a light direction conversion member 10 for converting light into a direction substantially parallel to the optical axis, a circuit board 30 on which an LED light source 60 is mounted, and a heat dissipation sheet 40 joined to the circuit board 30. It is mainly comprised by four structural members which consist of the heat sink 50 joined to the heat sink 40.
  • the components of the light direction conversion member 10, the circuit board 30, the heat dissipation sheet 40, and the heat dissipation plate 50 are unitized by being clamped and fixed by three screws 2,.
  • the light direction conversion member 10 of the light source module 1 includes a flat plate portion 11 having a regular hexagonal surface and side wall portions 12 opposed to each other along the peripheral direction of the flat plate portion 11. It is comprised by the case part 13,
  • the cross section of the case part 13 consists of a regular hexagonal shell which has an open cross-section structure.
  • a cylindrical mounting boss 14 having a through hole 14a is vertically erected at the center of the back surface of the flat plate portion 11, and among the six sides of the flat plate portion 11 forming a regular hexagon, three circles every other side Column-like screw mounting bosses 17... 17 are vertically erected.
  • Six teacup-shaped light redirecting portions 20,..., 20 are provided on the same circumference centering on the mounting boss 14 and corresponding to the apexes of the regular hexagon of the flat plate portion 11.
  • FIGS. 2A to 3B On the inner surface of the side wall portion 12 of the case portion 13, as shown in FIGS. 2A to 3B, three square pillar-shaped support ribs 15 to support the circuit board 30 are vertically extended. .
  • the support ribs 15 are arranged corresponding to one side between the three screw mounting bosses 17 among the six sides of the flat plate portion 11 forming a regular hexagon.
  • the height of the support rib 15 is slightly lower than the height of the side wall 12.
  • On the outer surface of the mounting boss 14, a pair of cylindrical pins 16, 16 are provided so as to be opposed to each other along the axis.
  • the tip of the pin 16 is projected from the mounting boss 14, and when the light source module 1 is attached, the tip of the pin 16 is inserted into the through hole formed in the other mounting plate to allow free rotation of the direction conversion element 10. It is supposed to be blocked.
  • the light redirecting member 10 is formed, for example, by injection molding of PMMA (polymethyl methacrylate) resin.
  • the material of the light direction conversion member 10 is not limited to PMMA resin, and for example, transparent resin such as polycarbonate, epoxy, silicone, transparent glass, or colored various transparent materials can be used.
  • the surface of the light redirecting member 10 excluding the light redirecting portion 20 is preferably roughened by processing means such as surface grinding or sand blasting. By applying a reflective film such as a coating film, vapor deposition, plating (silver) or the like on the surface, the shielding properties, appearance designability and light extraction properties can be improved.
  • the second emission surface of the second emission part 22 of the light direction conversion part 20 As one configuration example for improving the shielding property and appearance design of the light direction conversion member 10, as shown in FIGS. 3A and 4, the second emission surface of the second emission part 22 of the light direction conversion part 20. It is preferable to apply a reflective film to the surfaces other than 28, for example, the flat plate portion 11 of the case portion 13 in the light direction conversion member 10 and the side wall portion 12 including the inner peripheral surface of the through hole 14a of the mounting boss 14.
  • the second emission surface 28 of the second emission portion 22 of the light direction conversion portion 20 is excluded. It is preferable to apply a reflective film on the surface, for example, the side wall 12 including the inner peripheral surface of the through hole 14a of the mounting boss 14 in the case 13 of the light redirecting member 10 and the mounting surface of the substrate 30 on which the LED light source 60 is mounted. It is. By reflecting the light leaked from the light direction conversion unit 20 by the reflection film, the reflected light is condensed toward the light direction conversion unit 20 to improve the light extraction effect from the light direction conversion unit 20. it can. Thereby, the loss of light in the light redirecting member 10 can be reduced, and the luminance can be further enhanced.
  • the light redirecting portion 20 of the light redirecting member 10 is disposed at a portion corresponding to the LED light source 60 mounted on the circuit board 30, and the light emitted from the LED light source 60 is substantially parallel to the optical axis direction. Convert.
  • the light direction conversion unit 20 emits the first light emitting unit 21 that emits the central light beam emitted from the central portion of the LED light source 60 as the first parallel light L1, and the light from the LED light source 60. And a second emitting portion 22 for emitting the peripheral light flux of the peripheral portion of the central light flux as second parallel light L2.
  • the light redirecting unit 20 exemplifies a circular irradiation surface centered on the optical axis, but the light redirecting unit 20 is not limited to the illustrated example.
  • the irradiated surface of the light redirecting unit 20 is a light It may be an elliptical shape centered on the axis.
  • the first emission portion 21 of the light direction conversion portion 20 has a circular recess 23 opened on the side opposite to the emission side.
  • the bottom surface of the recess 23 has a first incident surface 24 having a convex curved shape at the center of the truncated conical portion bulging out on the side opposite to the emission side, and a flat shape bulging out on the emission side.
  • a first exit surface 25 having a concave and convex curved surface shape is formed at the central portion of the truncated conical portion.
  • the first incident surface 24 is a first refracting surface that refracts and enters the central luminous flux from the LED light source 60.
  • One of the first exit surfaces 25 is a second refracting surface that refracts the central light flux incident from the first incident surface 24 and emits the refracted light substantially parallel to the optical axis direction.
  • the emission direction of the central luminous flux from the LED light source 60 can be adjusted by setting the curvature shapes of the first and second curved surfaces.
  • the second emission portion 22 of the light direction conversion portion 20 has a second incident surface 26 having a concave surface shape on the side surface portion of the recess 23 of the first emission portion 21 and a convex surface on the outer surface of the light direction conversion portion 20.
  • a reflecting surface 27 having a shape and a second emitting surface 28 having a step shape in a recess opened to the emitting side of the light direction conversion unit 20 are provided.
  • the second incident surface 26 receives the peripheral light beam emitted from the LED light source 60 via the side surface portion of the concave portion 23 of the first emission unit 21.
  • the reflecting surface 27 totally reflects the peripheral light beam emitted from the second incident surface 26 substantially in parallel to the optical axis direction.
  • the second emission surface 28 emits the peripheral light flux totally reflected by the reflection surface 27 as parallel light in the optical axis direction.
  • the form of the light redirecting portion 20 is not limited to the illustrated example, but as shown in FIGS. 3A to 4, it is formed in a funnel shape which gradually spreads in the emission direction.
  • the form of the reflecting surface 27 of the light redirecting portion 20 may be, for example, equivalently a part of a curved shape such as a rotational quadric surface, a paraboloid, or a rotational hyperboloid.
  • the second emission surface 28 of the light direction conversion unit 20 is a stair including a flat surface portion 28a,..., 28a and wall surface portions 28b, ..., 28b orthogonal to the flat surface portion 28a. It is formed in shape.
  • the flat portion 28a has an annular shape that gradually expands in the emission direction around the optical axis, and is formed to have the same width.
  • One wall surface portion 28b has an annular shape that gradually expands in the emission direction around the optical axis, and is formed to have a smaller thickness and a smaller height in the emission direction.
  • the thickness of the light direction conversion unit 20 is set thin.
  • the thickness of the light redirecting portion 20 is set thin enough to reduce the rigidity of the light redirecting member 10 and not to make the optical characteristics of the second exit surface 28 unstable. As a result, it is possible to suppress the occurrence of sink marks and voids of resin during injection molding, and to obtain a product excellent in smoothness and appearance design. In addition to that, weight reduction and cost reduction of the product can be achieved.
  • the circuit board 30 is formed in a thin plate shape having a regular hexagonal face, and is made of, for example, a resin material such as a glass epoxy resin (FR4, CEM3).
  • An LED light source 60 is mounted on the surface of the circuit board 30, and a wiring pattern (not shown) is electrically connected to the two lead wires 61, 61 of the LED light source 60.
  • the lead wire 61 is connected to the circuit board 30 or the power supply unit of another light source module 1.
  • a screw insertion hole 31 of the screw 3 to be inserted through the mounting boss 14 of the light direction conversion member 10 is bored in the center of the circuit board 30.
  • pin insertion holes 32, 32 for inserting the pin 16 of the mounting boss 14 are formed, and lead wire insertion holes 33, 33 for inserting the lead wire 61 are formed.
  • three mounting slits 34,..., 34 cut in a U-shape are formed on every other side.
  • the mounting slit 34 is disposed corresponding to the screw mounting boss 17 of the light direction conversion member 10.
  • the LED light source 60 is accommodated, for example, in a recess of a substantially rectangular package formed of a white resin material, and is disposed immediately below the light redirecting portion 20. On the bottom surface of the recess, a blue LED element emitting blue light electrically connected to a pair of leads (not shown) which are led out to the outside is disposed. The blue LED element is mounted on the circuit board 30 through the leads.
  • a sealing resin is filled in the recess of the package. The sealing resin contains a phosphor that is excited by blue light emitted from the blue LED element to emit yellow light. White light is emitted based on the mixture of the blue light emitted from the blue LED element and the yellow light emitted from the phosphor.
  • the blue LED element for example, an LED element made of a GaN-based semiconductor compound having an emission wavelength range of 450 nm to 460 nm can be used.
  • a fluorescent substance garnet fluorescent substance etc., such as silicate fluorescent substance, or YAG fluorescent substance, can be used, for example.
  • emission light of various colors can be obtained, for example, by incorporating three color LED elements of R, G and B instead of the blue LED elements.
  • the heat dissipating body is composed of two members, a heat dissipating sheet 40 and a heat dissipating plate 50, as shown in FIG. 2A.
  • the heat dissipation sheet 40 and the heat dissipation plate 50 are formed in a thin-walled shape having a regular hexagonal surface the same shape as the circuit board 30. According to the illustrated example, one heat dissipation sheet 40 is sandwiched and mounted between the circuit board 30 and the heat dissipation plate 50.
  • the screw insertion holes 41, the pin insertion holes 42, the lead wire insertion holes corresponding to the screw insertion holes 31, the pin insertion holes 32, the lead wire insertion holes 33, and the mounting slits 34 of the circuit board 30 are provided. 43 and a mounting slit 44 are provided.
  • Holes 53 and mounting holes 54 are formed.
  • the material of the heat dissipation sheet 40 examples include resin materials such as acrylic resin, urethane resin, and silicone resin.
  • resin materials such as acrylic resin, urethane resin, and silicone resin.
  • a material of one heat sink 50 for example, it is preferable to use a metal material with good thermal conductivity such as aluminum, copper and the like.
  • a part of the heat generated by the LED light source 60 is transferred from the circuit board 30 to the mounting plate of the other side via the heat dissipation sheet 40 and the heat dissipation plate 50, such as the internal space of the LED light source 60 and the light source module 1 The temperature rise is suppressed.
  • FIGS. 5A to 5C schematically show an example in which the light source modules 1 whose outer form is a regular hexagon are arranged in an array.
  • positioning pattern of the regular hexagon of the light source module 1 as shown to FIG. 5A, the arrangement
  • the arrangement pattern of the regular hexagons of the light source module 1 as shown in FIG.
  • the light source modules 1 can be spread without gaps between the plurality of regular hexagons, and the LED light sources 60 can be spread and arranged on one side.
  • the light source module 1 having a regular hexagonal shape as viewed from the flat surface is exemplified, but the present invention is not limited to this.
  • the outer surface has a triangle, a square or an octagon in plan view.
  • the light source module 1 may have a polygon, for example.
  • the light source module 1 configured as described above is assembled by attaching the circuit board 30, the heat dissipation sheet 40 and the heat dissipation plate 50 to the back surface of the light direction conversion member 10 through the support ribs 15 according to a standard method.
  • the screw portion of ..., 2 is formed on the tip surface of the screw mounting boss 17 of the light direction conversion member 10 through the mounting slit 34 of the circuit board 30, the mounting slit 44 of the heat dissipation sheet 40, and the mounting hole 54 of the heat dissipation plate 50. It is assembled by screwing and tightening and fixing the female screw part.
  • the mounting bosses 14 of the light direction conversion member 10 are It is fastened and fixed to the mounting plate of the other side by means of screws 3.
  • the light direction conversion member 10 includes the first emission unit 21 that emits the central luminous flux emitted from the central portion of the LED light source 60 as the first parallel light L1, and the peripheral portion of the central luminous flux emitted from the LED light source 60 Since the second light emitting portion 22 for emitting the peripheral light flux of the second parallel light L2 is provided, it is possible to make the parallelism of the central light flux and the peripheral light flux from the LED light source 60 accurate.
  • the central light flux and the peripheral light flux emitted from the LED light source 60 can be converted substantially parallel to the optical axis direction and emitted, so that the LED is not influenced by the distance from the LED light source to the illumination target All luminous fluxes from the light source can be efficiently emitted toward the surface of the object to be illuminated with the same optical power.
  • the thickness of the light direction conversion portion 20 can be set thin enough not to reduce optical characteristics, rigidity, appearance, etc., it is possible to suppress the generation of sink marks and voids of resin during injection molding. As well as being able to achieve weight reduction and cost reduction of the product.
  • the outer shape of the light source module 1 is formed in a regular hexagonal shape, the dead space of the illumination area when the light source modules 1 are arranged in an array can be almost eliminated.
  • the illumination density can be made uniform, and bright illumination can be achieved.
  • the circuit board 30, the heat dissipation sheet 40 and the heat dissipation plate 50 are sequentially assembled to the back surface of the light direction conversion member 10, and then the assembly is performed by fastening and fixing with the screws 2. Is easy to (6)
  • a reflector for directing the light flux from the LED light source 60 in the irradiation direction becomes unnecessary, and the number of parts can be reduced and the assembly accuracy can be improved. In addition to that, it is also possible to achieve downsizing and thinning of the light source module 1.
  • the light source module 1 configured as described above can be effectively applied as a final product to, for example, a lighting device for street lamps.
  • a street lamp lighting apparatus 100 using the light source module 1 according to the first embodiment is schematically shown in FIG.
  • the members substantially the same as those in the first embodiment are given the same member names and reference numerals. Therefore, the detailed description about the substantially same member as the above-mentioned 1st embodiment is omitted.
  • reference numeral 100 generally indicates a street lamp lighting apparatus using the light source module 1.
  • the lighting apparatus 100 includes a support (not shown) vertically fixed on a road surface, the ground, or the like, and a lamp main body 101 supported and fixed at the upper end of the support.
  • the lamp main body 101 includes a housing 103 having an opening 102 on the lower surface, a lid 105 for closing the opening 102, and a planar light emitting device 70 housed in the housing 103.
  • a lamp lens 104 is provided at a portion of the lid 105 corresponding to the light source module 1.
  • the lead wire 61 of the LED light source 60 is connected to the circuit board 30 and the power supply unit 106 of another light source module 1.
  • the planar light emitting device 70 of the lighting apparatus 100 includes a large number of light source modules 1,.
  • the light source module 1 is supported and fixed to a mounting unit 107 provided in a housing 103.
  • the mounting unit 107 includes a mounting plate 109 having a mounting bracket 108, and is made of sheet metal such as galvanized steel, aluminum or copper.
  • the mounting bracket 108 of the mounting plate 109 is fastened and fixed to a cylindrical bracket mounting boss 110 vertically provided on the bottom surface of the housing 103 by a screw 111.
  • the light source module 1 inserts and positions the tips of the pair of pins 16 protruding from the back surface of the heat sink 50 into the through holes formed in the mounting plate 109, and then through the mounting bosses 14 of the light direction conversion member 10 according to a standard method. It is fastened and fixed to the mounting plate 109 by a screw 3.
  • the white light is emitted from the LED light sources 60 of the multiple light source modules 1.
  • the white light is, as shown in FIG. 4, the central luminous flux emitted from the central part of the LED light source 60 by the light redirecting member 10 and the peripheral luminous flux emitted from the LED light source 60 to the lamp lens 104 as parallel light. It is emitted.
  • the central luminous flux and the peripheral luminous flux transmitted from the back side to the front side of the lamp lens 104 are emitted sideways, obliquely upward, and obliquely downward as parallel light.
  • the luminous flux emitted from the lamp lens 104 directly reaches the road surface, the ground, etc., and illuminates the road surface, the ground, etc. clearly.
  • the lighting apparatus 100 can be configured to be compact.
  • the number of installed light source modules 1 can be easily changed according to the power.
  • the lead wire 61 of the LED light source 60 is exposed on the back surface side of the light source module 1, the large number of light source modules 1 can be easily electrically connected to the power supply unit 106 of the lighting apparatus 100.
  • the present invention is not limited to the above embodiment, modification examples, and illustrated examples, and various design changes can be made within the scope described in each claim.
  • a planar light-emitting device is applied to a street lamp illumination device
  • a parking lot It can be effectively used for various lighting devices such as lamps, floodlights, and spotlights.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)
  • Led Device Packages (AREA)

Abstract

L'invention porte sur un module de source lumineuse qui permet une augmentation de l'efficacité d'utilisation d'un flux lumineux provenant d'une source lumineuse à DEL, indépendamment de la distance de la source lumineuse à DEL d'un objet devant être éclairé. Un module de source lumineuse (1) comporte un élément de conversion de direction de lumière (10) formé selon un hexagone régulier. En des positions correspondant aux sommets de l'hexagone régulier de l'élément de conversion de direction de lumière (10), des sources lumineuses à DEL (60) et une pluralité de convertisseurs de direction de lumière (20) sont disposés face aux sources lumineuses à DEL (60). Chacun des convertisseurs de direction de lumière (20) comprend une première partie d'émission (21) pour émettre un flux lumineux émis à partir de la source lumineuse à DEL (60) sous forme d'une première lumière parallèle et une seconde partie d'émission (22) pour émettre un flux lumineux autour du flux lumineux émis à partir de la source lumineuse à DEL (60) sous forme d'une seconde lumière parallèle.
PCT/JP2009/062614 2009-04-16 2009-07-10 Module de source lumineuse WO2010119580A1 (fr)

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EP2848857A3 (fr) * 2010-11-08 2015-04-08 LG Innotek Co., Ltd. Dispositif d'éclairage
JP2016001577A (ja) * 2014-06-12 2016-01-07 パナソニックＩｐマネジメント株式会社 照明装置及びそれを備える自動車
WO2017055141A1 (fr) * 2015-09-29 2017-04-06 Philips Lighting Holding B.V. Module à del comprenant une lentille de sortie
JP2017191787A (ja) * 2010-03-29 2017-10-19 東芝ライテック株式会社 照明装置
US20180031198A1 (en) * 2015-02-06 2018-02-01 Valeo Vision Reflector device for a light module with electromagnetic shielding
AT15786U1 (de) * 2014-04-25 2018-06-15 Zumtobel Lighting Gmbh Optisches Element für eine LED, LED-Anordnung mit einem solchen optischen Element, sowie Leuchte mit einer solchen LED-Anordnung
JP2018147746A (ja) * 2017-03-06 2018-09-20 パナソニックＩｐマネジメント株式会社 照明装置および光学部材
JP2019504455A (ja) * 2016-01-21 2019-02-14 フィリップス ライティング ホールディング ビー ヴィ コリメータ及びコリメータ構成物
AT520487A1 (de) * 2017-09-21 2019-04-15 Litestudio Og Leuchtmodul zur Abstrahlung von parallel gerichtetem Licht
JP2019211736A (ja) * 2018-06-08 2019-12-12 パナソニックＩｐマネジメント株式会社 レンズ及び照明器具
EP3805636A1 (fr) * 2019-10-07 2021-04-14 Siteco GmbH Positionnement d'un corps de lentille silicone sur une del
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JP2017191787A (ja) * 2010-03-29 2017-10-19 東芝ライテック株式会社 照明装置
EP2848857A3 (fr) * 2010-11-08 2015-04-08 LG Innotek Co., Ltd. Dispositif d'éclairage
JP2014503977A (ja) * 2011-01-25 2014-02-13 コーニンクレッカ フィリップス エヌ ヴェ Ｌｅｄベースのモジュールアセンブリ
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CN102734645A (zh) * 2011-04-01 2012-10-17 上海广茂达光艺科技股份有限公司 Led投影灯具
WO2013020842A1 (fr) * 2011-08-11 2013-02-14 Hella Kgaa Hueck & Co. Module lumineux pour un éclairage extérieur
CN103732982A (zh) * 2011-08-11 2014-04-16 黑拉许克联合股份有限公司 用于室外照明灯的发光模块
EP2687774A1 (fr) * 2012-07-18 2014-01-22 Bilfinger Construction GmbH Dispositif dýéclairage
AT15786U1 (de) * 2014-04-25 2018-06-15 Zumtobel Lighting Gmbh Optisches Element für eine LED, LED-Anordnung mit einem solchen optischen Element, sowie Leuchte mit einer solchen LED-Anordnung
JP2016001577A (ja) * 2014-06-12 2016-01-07 パナソニックＩｐマネジメント株式会社 照明装置及びそれを備える自動車
US20180031198A1 (en) * 2015-02-06 2018-02-01 Valeo Vision Reflector device for a light module with electromagnetic shielding
US11193644B2 (en) * 2015-02-06 2021-12-07 Valeo Vision Reflector device for a light module with electromagnetic shielding
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WO2017055141A1 (fr) * 2015-09-29 2017-04-06 Philips Lighting Holding B.V. Module à del comprenant une lentille de sortie
CN108139577A (zh) * 2015-09-29 2018-06-08 飞利浦照明控股有限公司 具有输出透镜的led模块
JP2019504455A (ja) * 2016-01-21 2019-02-14 フィリップス ライティング ホールディング ビー ヴィ コリメータ及びコリメータ構成物
JP2018147746A (ja) * 2017-03-06 2018-09-20 パナソニックＩｐマネジメント株式会社 照明装置および光学部材
AT520487A1 (de) * 2017-09-21 2019-04-15 Litestudio Og Leuchtmodul zur Abstrahlung von parallel gerichtetem Licht
AT520487B1 (de) * 2017-09-21 2019-07-15 Litestudio Og Leuchtmodul zur Abstrahlung von parallel gerichtetem Licht
JP2019211736A (ja) * 2018-06-08 2019-12-12 パナソニックＩｐマネジメント株式会社 レンズ及び照明器具
JP7170225B2 (ja) 2018-06-08 2022-11-14 パナソニックＩｐマネジメント株式会社 レンズ及び照明器具
EP3805636A1 (fr) * 2019-10-07 2021-04-14 Siteco GmbH Positionnement d'un corps de lentille silicone sur une del
EP4123219A1 (fr) * 2019-10-07 2023-01-25 Siteco GmbH Positionnement d'un corps de lentille silicone sur une del
US11300270B1 (en) * 2021-03-01 2022-04-12 Dialight Corporation Optics for edges of a structure to minimize light leakage

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