JP2008135260A - Headlamp for vehicle - Google Patents

Headlamp for vehicle Download PDF

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Publication number
JP2008135260A
JP2008135260A JP2006319839A JP2006319839A JP2008135260A JP 2008135260 A JP2008135260 A JP 2008135260A JP 2006319839 A JP2006319839 A JP 2006319839A JP 2006319839 A JP2006319839 A JP 2006319839A JP 2008135260 A JP2008135260 A JP 2008135260A
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JP
Japan
Prior art keywords
heat
light
light emitting
emitting element
reflector
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
JP2006319839A
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Japanese (ja)
Inventor
Hiroyuki Imamura
Hiroshi Nasu
Tetsushi Tamura
博之 今村
哲志 田村
博 那須
Original Assignee
Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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 Matsushita Electric Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP2006319839A priority Critical patent/JP2008135260A/en
Publication of JP2008135260A publication Critical patent/JP2008135260A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141Light emitting diodes [LED]
    • F21S41/147Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/47Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F21S45/48Passive cooling, e.g. using fins, thermal conductive elements or openings with means for conducting heat from the inside to the outside of the lighting devices, e.g. with fins on the outer surface of the lighting device
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40Cooling of lighting devices
    • F21S45/42Forced cooling
    • F21S45/43Forced cooling using gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/60Heating of lighting devices, e.g. for demisting

Abstract

Provided is a vehicle headlamp that effectively radiates heat generated by an LED to the outside and efficiently draws light of the LED to the front surface.
A heat dissipating part is integrally formed on a housing of a vehicle headlamp so as to cover a heat dissipating fin located at a front end opening of the housing with a light transmitting material. Arrange. Further, the light emitting element support portions 22 of the LEDs 14 and 16 that are light sources and the heat radiation fins 4 are connected by heat pipes 26 and 28. Furthermore, the surface of the radiation fin 4 is configured as a mirror surface parallel to the optical axis 40 of the reflector 12.
[Selection] Figure 1

Description

  The present invention relates to a vehicle headlamp using a semiconductor light emitting element such as an LED.

  Conventionally, incandescent lamps, halogen lamps, high-intensity discharge lamps, and the like have been used as vehicle headlamps. In recent years, vehicle headlamps that use light-emitting diodes (LEDs) that consume less power and are superior in life in addition to the above light sources have been developed.

  In general, a housing for a vehicle headlamp is made of resin for cost reduction, and a light source such as an LED is hermetically sealed in a space formed by the housing and a front cover of a light transmissive resin. Used. In particular, when an LED is used for a vehicle headlamp, a high current needs to be obtained by passing a large current through the LED in a sealed space. Therefore, the temperature rises due to heat generation of the LED, in particular, the junction portion, and problems such as deterioration of the luminance and life of the LED occur.

  In order to solve these problems, it is important to dissipate heat from the LEDs to suppress the temperature rise and stabilize the operating temperature.

Thus, in order to solve the above-described problems, proposals have been made to reduce the heat of LEDs using a heat pipe (see, for example, Patent Document 1). That is, in Patent Document 1, a large number of small headlamp units having three rows in the vertical direction and five rows in the horizontal direction are provided in the space of the vehicle headlamp. Each small headlamp unit has a light source support block in which an LED, a reflector, a lens system, and the like are disposed. Further, a plurality of light source support blocks are arranged on a heat pipe formed in a step shape. At this time, the heat radiating end of the heat pipe is disposed in the front space near the lower end of the sealed light projecting cover of the vehicle headlamp. The heat generated from each LED is conducted to the stepped heat pipe through each light source support block and is released into the front space. It is described that this configuration eliminates fogging of the inner surface of the floodlight cover, frost and snow adhering to the outer surface. Further, it has been proposed to radiate heat to the outside of the housing by connecting the heat radiating end of the stepped heat pipe to a heat sink disposed on the outer surface of the lower part of the housing.
JP 2004-31224 A

  However, in the vehicle headlamp shown in Patent Document 1, since the heat radiating end of the heat pipe is arranged in the space inside the vehicle headlamp, the heat is confined in this space, and the LED is almost cooled. Not. In addition, when the heat sink is disposed outside the housing, there is a problem in that the vehicle design such as attachment and arrangement of the vehicle headlamp to the vehicle body is limited. Further, since a plurality of reflectors, a lens system, a light source support block, and the like are required, there is a problem that the manufacturing cost increases.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vehicle headlamp that can efficiently dissipate heat from a semiconductor light-emitting element and can effectively use light from the semiconductor light-emitting element. To do.

  In order to achieve the above-described object, the vehicle headlamp according to the present invention is configured to cover the housing and the radiating fins located at the front end opening of the housing and arranged at predetermined intervals with a light transmitting material. An integrally formed heat radiating part, a semiconductor light emitting element disposed in a space formed by the housing and the heat radiating part, a reflector for reflecting and condensing light from the semiconductor light emitting element, and reflected light from the reflector are substantially A lens system that converts parallel light, a shade portion that forms a light distribution pattern of parallel light, a light emitting element support that conducts and supports the heat of the semiconductor light emitting element, and heat that connects the light emitting element support and the radiation fin A pipe, and radiates the heat of the semiconductor light emitting element from the heat radiating portion to the outside and irradiates the reflected light forward through the light transmitting material.

  With this configuration, the LED light can be converted into substantially parallel light by the reflector and the lens system, and the light can be efficiently irradiated to the front of the vehicle headlamp via the light transmission material between the radiation fins. Further, the heat generated in the LED is conducted to the heat radiating fins of the heat radiating part through the light emitting element support part and the heat pipe, and is radiated to the outside. In particular, since the strong air flow is received while the vehicle is running, the heat dissipating part is efficiently cooled, and a large heat dissipating effect can be obtained. Furthermore, since heat can be concentrated on the heat radiating part through which light is transmitted, fogging on the inner surface, frost and snow adhering to the outer surface can be eliminated. Further, since there are no parts attached to the exterior of the headlamp housing, there are advantages such as less restrictions on vehicle design and design such as installation and arrangement.

  Furthermore, the front surface shape of the radiating fin may be a lattice shape, and the configuration may be such that the surface of the radiating fin is arranged in parallel with the optical axis of the reflector.

  Furthermore, the front surface shape of the radiating fin may be concentric, and the surface of the radiating fin may be arranged parallel to the optical axis of the reflector.

  With these configurations, the light deviating from the direction parallel to the optical axis of the LED reflector is reflected by the surface of the radiating fin arranged in parallel with the optical axis, and is effectively drawn out in front of the vehicle headlamp, thereby increasing the brightness. Can increase significantly.

  Furthermore, the length of the surface of the radiation fin may be longer than the interval of the front shape of the radiation fin.

  Thereby, since the light deviating from the direction parallel to the optical axis of the reflector of the LED can be made more parallel light, higher luminance can be realized.

  Furthermore, the structure which the heat sink fin is comprised from the metal material of copper, copper alloy, or aluminum, and the surface is formed in the mirror surface shape may be sufficient.

  Thereby, the heat generated by the LED can be more effectively dissipated to the outside of the vehicle by the heat dissipating fins made of the metal material having excellent heat conductivity. Further, the light of the LED can be reflected by the surface formed on the mirror surface of the radiating fin, and can be more effectively drawn out in front of the vehicle headlamp.

  Furthermore, the reflection surface shape of the reflector may be a part of a spheroid, and the semiconductor light emitting element may be disposed near the first focal point.

  With this configuration, the light reflected by the LED reflector can be condensed in the vicinity of the second focal point of the spheroid, and can be converted into substantially parallel light by the lens system. Thereby, the light of LED can be irradiated ahead from the predetermined space | interval of a radiation fin via a light transmissive material.

  According to the vehicle headlamp of the present invention, it is possible to effectively dissipate the heat generated from the LED to the outside of the vehicle by the air flow received from the front of the vehicle and to eliminate the fogging of the inner surface, frost and snow adhering to the outer surface. . Furthermore, it is possible to improve the luminance by effectively leading the LED light forward. Further, it is possible to provide a vehicular headlamp that does not cause an increase in cost and restrictions on vehicle design such as installation and arrangement.

(Embodiment)
Below, the structure of the vehicle headlamp in embodiment of this invention is demonstrated using FIG. 1 and FIG.

  Fig.1 (a) is the front view which looked at the vehicle headlamp in embodiment of this invention from the front, FIG.1 (b) is the sectional view on the AA line of Fig.1 (a). FIG. 2 is a perspective view showing the configuration of the heat dissipating fins of the vehicle headlamp according to the embodiment of the present invention. Note that the heat dissipating fins in FIG. 2 are drawn from the actual number of heat dissipating fins in FIG.

  As shown in FIG. 1B, a vehicular headlamp 1 includes a housing 2 made of a resin such as polycarbonate and a grid-like heat radiation fin 4 formed at a predetermined interval, for example, polycarbonate, polypropylene, epoxy, or the like. The heat radiating part 8 is embedded and integrally formed with the light transmissive resin 6. Here, the radiation fin 4 has a mirror-like plane parallel to the optical axis 40 of the reflector 12 described below, and is made of a metal material having excellent thermal conductivity such as copper, copper alloy, or aluminum.

  And the space 10 comprised by the housing 2 and the thermal radiation part 8 forms the space sealed so that rain etc. may not penetrate | invade, The reflective surface in which reflection surface consists of a part of spheroid in this space 10 A plurality of semiconductor light emitting elements such as LEDs (hereinafter also referred to as “LED”) 14 and 16 are disposed in the vicinity of the first focal point F 1 of the reflector 12. As the semiconductor light emitting element, a blue LED is mainly used, and the blue light and the blue light transmitted through the yellow phosphor are mixed, or the LED emitting ultraviolet light is transmitted through the RGB phosphor and mixed to emit white light. Getting color. Note that a plurality of LEDs 14 and 16 are preferably arranged, but one LED may be used when the amount of light and heat resistance are high.

  Further, the LEDs 14 and 16 are formed on the thermally conductive substrates 18 and 20, respectively, and bonded to the light emitting element support portion 22 made of a metal material such as copper, copper alloy, or aluminum. The light emitting element support portion 22 is formed with a hole penetrating the light emitting element support portion 22 with the optical axis on the reflector 12 as a center, and the light emitting element support portion 22 and the reflector 12 are formed at positions passing through the reflector 12. And the base 24 is being fixed by welding etc., for example. In addition, as a material of the base 24, it is desirable to comprise with the same metal material as the light emitting element support part 22. FIG. Further, as a fixing method, other than the method by welding, the reflector 12 may be clamped and fixed so as to be sandwiched between the base 24 and the light emitting element support portion 22 which are threaded on both sides.

  Further, the heat absorbing ends (not shown) of the heat pipes 26 and 28 are connected and fixed to the base 24, and the heat radiating ends 66 and 68 are connected to the upper surface 62 and the lower surface 64 of the heat radiating fin 4 as shown in FIG. To do. Here, the heat pipes 26 and 28 are generally called wicks. A liquid flow path through which hydraulic fluid such as water or ethanol passes and a gas flow path through which the steam passes are sealed spaces with high thermal conductivity such as copper pipes. It has the structure provided in.

  In addition, the position which connects the radiation fin 4 to the heat pipes 26 and 28 may be any position as long as it does not prevent the passage of light, and is not particularly limited. Moreover, although the example using the two heat pipes 26 and 28 has been described above, the number is not particularly limited.

  The base 24 is screwed with a screw 30 from the rear surface 29 of the housing 2. The heat pipes 26 and 28 are fixed to the housing 2 with, for example, resin bands 32, 34, 36 and 38.

  With this configuration, the heat generated with the light emission of the LEDs 14 and 16 is conducted to the light emitting element support 22 through the heat conductive substrates 18 and 20. Furthermore, the heat pipes 26 and 28 connected to the pedestal 24 connected to the light emitting element support portion 22 are conducted to the heat radiation fins 4 of the heat radiation portion 8 from the heat absorption ends. At this time, in the heat pipes 26 and 28, when a part of the heat pipes 26 and 28 is heated, the latent heat of evaporation is absorbed in the heating part (heat absorption end), and the working fluid is evaporated, so that the low temperature part (heat radiation end). The steam moves to. Then, in the low temperature part, the vapor condenses and releases heat of evaporation, and the condensed liquid returns to the heating part through capillary action by capillary action. In this way, the liquid-gas phase change is repeated, and since it is performed under reduced pressure, heat can be transferred at a very high speed.

  Moreover, since the heat radiating portion 8 is disposed at the front end portion (the front end portion of the vehicle) of the vehicular headlamp 1, it is rapidly cooled by the wind (air flow) received from the front particularly during traveling. . As a result, the heat generated in the LED is efficiently dissipated and the LED is effectively cooled.

  On the other hand, when an electric current is passed through the LED, the LED emits light, and the LED is disposed in the vicinity of the first focal point F1 of the spheroid reflector 12. Therefore, the reflected light is a second focal point F2 on the optical axis 40 of the reflector 12. It is condensed in the vicinity. The LED light passing through the second focal point F2 is converted into substantially parallel light as indicated by arrows 44, 46, 48, 50, 52 by the convex lens 42 fixed by the lens support portions 47, 49 of the housing 2. Is done. Thereafter, the parallel light passes through between the surfaces of the radiation fins 4 (light transmissive resin 6) provided in parallel to the optical axis 40 of the reflector 12 and is irradiated forward. At this time, by adjusting the shade part 60 provided in the space, it is possible to obtain light of a desired light distribution pattern irradiated forward.

  In general, a plurality of LEDs are used to obtain a large amount of light. For this reason, since a plurality of LEDs cannot be arranged on one point, the light from the LEDs is converged in the vicinity of the second focal point F2 with variation, and light of a component that does not become parallel light even through the convex lens 42 is generated.

  However, the light indicated by the arrows 54 and 56 deviated from the direction parallel to the optical axis 40 is reflected on the mirror-like plane of the radiating fin 4 and can be effectively drawn out to the front of the vehicle headlamp 1. In addition, it is desirable to form the formation surface 58 of the light transmissive resin 6 integrated with the heat radiating portion 8 in a direction perpendicular to the optical axis 40 of the reflector 12 so as not to reflect parallel light.

  In the present embodiment, an example in which grid-like heat radiation fins are used has been described, but the present invention is not limited to this. For example, as shown in a front view of another example of the heat radiating fin in FIG. 3, it may be a concentric heat radiating fin 70 or a honeycomb shape, and any shape can be used as long as it can be connected to a heat pipe and can efficiently radiate heat. Possible and not particularly limited. In this case, the concentric radiating fins 70 are fixed by a support member 72 orthogonal to the concentric radiating fins 70, and are formed integrally with the light transmissive resin 6. Similarly to the lattice-shaped heat radiation fins 4, the concentric heat radiation fins 70 also have a surface parallel to the optical axis of the reflector 12, and the concentric heat radiation fins 70 and the support member 72 are made of a metal having excellent thermal conductivity. It is desirable to make it from a material. Further, the support member 72 may be a radial radiating fin orthogonal to the concentric radiating fin 70. Thereby, the vehicle headlamp excellent in design which is an important element in vehicle design can be realized.

  Further, in the present embodiment, the lattice spacing of the heat radiating fins and the length of the surface parallel to the optical axis have been described as examples, but the present invention is not limited to this. For example, as shown in the side cross-sectional view of the vehicle headlamp in FIG. 4, the length of the surface parallel to the optical axis may be made longer than the grid-like spacing of the radiating fins 4. At this time, the length of the parallel surfaces may be changed depending on the position, or may be the same. Thereby, the non-parallel light which shifted | deviated from the optical axis can be made into a substantially parallel light more efficiently, and a brightness | luminance can be improved.

  Further, in the present embodiment, the example in which the entire heat radiation fin is embedded in the light-transmitting resin has been described, but the present invention is not limited to this. For example, only the front side of the radiation fins may be embedded in a thin light transmissive resin. Thereby, weight reduction of the vehicle headlamp can be achieved.

  As described above, according to the present embodiment, the heat generated from the LED can be effectively radiated using the air flow from the front of the vehicle, and the luminance of the LED is improved by efficiently using the light of the LED. be able to. In addition, since invalid light can be reduced, the driving current of the LED can be reduced, and a vehicular headlamp that is further excellent in life and reliability can be realized.

  The vehicular headlamp according to the present invention is useful as a vehicular headlamp that efficiently cools LEDs and has high brightness, power saving, and long life.

(A) The front view which looked at the vehicle headlamp in embodiment of this invention from the front (b) The AA line side surface sectional drawing of Fig.1 (a) The perspective view which shows the structure of the radiation fin of the vehicle headlamp in embodiment of this invention The front view of the vehicle headlamp which showed another example of the radiation fin in embodiment of this invention Side surface sectional drawing of the vehicle headlamp which showed another example of the radiation fin in embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle headlamp 2 Housing 4 Radiation fin 6 Light transmissive resin (light transmissive material)
8 Heat Dissipation Section 10 Space 12 Reflector 14, 16 Semiconductor Light Emitting Element (LED)
18, 20 Substrate 22 Light emitting element support 24 Base 26, 28 Heat pipe 29 Rear surface 30 Screw 32, 34, 36, 38 Band 40 Optical axis 42 Convex lens (lens system)
44, 46, 48, 50, 52, 54, 56 Arrow 47, 49 Lens support portion 58 Forming surface 60 Shade portion 62 Upper surface 64 Lower surface 66, 68 Heat radiation end 70 Concentric heat radiation fin 72 Support member

Claims (6)

  1. A housing;
    A heat dissipating part integrally formed so as to cover the heat dissipating fins, which are located at the front end opening of the housing and arranged at a predetermined interval, with a light transmitting material,
    A semiconductor light emitting device disposed in a space formed by the housing and the heat dissipation unit;
    A reflector that reflects and collects light from the semiconductor light emitting element;
    A lens system that converts reflected light from the reflector into substantially parallel light;
    A shade part for forming a light distribution pattern of the parallel light;
    A light emitting element support for conducting and supporting heat of the semiconductor light emitting element;
    Comprising a heat pipe connecting the light emitting element support and the radiation fin;
    A vehicle headlamp characterized in that heat of the semiconductor light emitting element is radiated from the heat radiating portion to the outside, and the reflected light is irradiated forward through the light transmitting material.
  2. The vehicular headlamp according to claim 1, wherein a front surface shape of the radiating fin is a lattice shape, and a surface of the radiating fin is configured in parallel with an optical axis of the reflector.
  3. 2. The vehicle headlamp according to claim 1, wherein the front surface shape of the heat radiating fin is concentric, and the surface of the heat radiating fin is configured in parallel with the optical axis of the reflector.
  4. 4. The vehicle headlamp according to claim 2, wherein a length of the surface of the radiating fin is longer than an interval of a front shape of the radiating fin. 5.
  5. 5. The front for a vehicle according to claim 1, wherein the radiating fin is made of a metal material of copper, copper alloy, or aluminum, and a surface thereof is formed in a mirror shape. Lighting.
  6. The vehicular headlamp according to claim 1, wherein a shape of a reflecting surface of the reflector constitutes a part of a spheroid, and the semiconductor light emitting element is disposed in the vicinity of the first focal point.
JP2006319839A 2006-11-28 2006-11-28 Headlamp for vehicle Pending JP2008135260A (en)

Priority Applications (1)

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JP2006319839A JP2008135260A (en) 2006-11-28 2006-11-28 Headlamp for vehicle

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012519350A (en) * 2009-02-27 2012-08-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ LED based lamp and thermal management system for the lamp
WO2014037908A1 (en) * 2012-09-07 2014-03-13 Koninklijke Philips N.V. Lighting device with integrated lens heat sink
US8678631B2 (en) 2010-03-31 2014-03-25 Denso Corporation Vehicle headlamp assembly with convection airflow controlling plate
CN104949057A (en) * 2014-03-27 2015-09-30 玉晶光电股份有限公司 Optical assembly and manufacturing method thereof
JP2017004709A (en) * 2015-06-09 2017-01-05 信越ポリマー株式会社 Led illumination member
WO2017081999A1 (en) * 2015-11-11 2017-05-18 Necライティング株式会社 Lamp
EP2711625B1 (en) * 2012-09-24 2017-05-24 Scania CV AB Light apparatus
JP2017147025A (en) * 2016-02-15 2017-08-24 ウシオ電機株式会社 Light source unit
US10591124B2 (en) 2012-08-30 2020-03-17 Sabic Global Technologies B.V. Heat dissipating system for a light, headlamp assembly comprising the same, and method of dissipating heat

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012519350A (en) * 2009-02-27 2012-08-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ LED based lamp and thermal management system for the lamp
US8678631B2 (en) 2010-03-31 2014-03-25 Denso Corporation Vehicle headlamp assembly with convection airflow controlling plate
US10591124B2 (en) 2012-08-30 2020-03-17 Sabic Global Technologies B.V. Heat dissipating system for a light, headlamp assembly comprising the same, and method of dissipating heat
CN104620049A (en) * 2012-09-07 2015-05-13 皇家飞利浦有限公司 Lighting device with integrated lens heat sink
US9488360B2 (en) 2012-09-07 2016-11-08 Koninklijke Philips N.V. Lighting device with integrated lens heat sink
CN104620049B (en) * 2012-09-07 2018-12-14 飞利浦照明控股有限公司 Lighting apparatus with integral lens radiator
WO2014037908A1 (en) * 2012-09-07 2014-03-13 Koninklijke Philips N.V. Lighting device with integrated lens heat sink
EP2711625B1 (en) * 2012-09-24 2017-05-24 Scania CV AB Light apparatus
CN104949057A (en) * 2014-03-27 2015-09-30 玉晶光电股份有限公司 Optical assembly and manufacturing method thereof
JP2017004709A (en) * 2015-06-09 2017-01-05 信越ポリマー株式会社 Led illumination member
WO2017081999A1 (en) * 2015-11-11 2017-05-18 Necライティング株式会社 Lamp
US10627057B2 (en) 2015-11-11 2020-04-21 HotaluX, Ltd. Lamp
JP2017147025A (en) * 2016-02-15 2017-08-24 ウシオ電機株式会社 Light source unit

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