JP2008140713A - Lighting system - Google Patents

Lighting system Download PDF

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Publication number
JP2008140713A
JP2008140713A JP2006327531A JP2006327531A JP2008140713A JP 2008140713 A JP2008140713 A JP 2008140713A JP 2006327531 A JP2006327531 A JP 2006327531A JP 2006327531 A JP2006327531 A JP 2006327531A JP 2008140713 A JP2008140713 A JP 2008140713A
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Japan
Prior art keywords
light
lens
guide plate
led
leds
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JP2006327531A
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Japanese (ja)
Inventor
Takao Mizukami
隆生 水上
Yuji Azuma
祐二 我妻
Yoshiaki Matsuba
慶暁 松葉
Hideo Inoue
英夫 井上
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Toshiba Lighting and Technology Corp
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Harison Toshiba Lighting Corp
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Priority to JP2006327531A priority Critical patent/JP2008140713A/en
Publication of JP2008140713A publication Critical patent/JP2008140713A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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

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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system having simple structure and irradiating a desired irradiation area with sufficient luminous energy. <P>SOLUTION: The lighting system 1 comprises a light source unit 10 having a plurality of LEDs 12 arranged as light sources, a light guide plate 25 receiving light emitted from LEDs 12 and forming luminous flux having a predetermined shape, and a cylindrical lens 26 and an irradiation lens 27 for refracting and radiating the luminous flux radiated from the light guide plate 25. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、発光ダイオードを光源として予め設定した照射領域を照明する照明装置に関する。   The present invention relates to an illumination device that illuminates a preset irradiation region using a light emitting diode as a light source.

一般に、発光ダイオード（ＬＥＤ）は、消費電力が小さく長寿命であるという利点を有する。そこで、近年では、ＬＥＤの高出力化に伴い、例えば、車載のヘッドライトやフォグランプ等のように大光量が要求される照明装置においても、光源にＬＥＤを適用することが期待されている。   Generally, a light emitting diode (LED) has an advantage of low power consumption and long life. Therefore, in recent years, with higher output of LEDs, it is expected that LEDs are applied as light sources even in lighting devices that require a large amount of light, such as in-vehicle headlights and fog lamps.

その一方で、高出力のＬＥＤは極めて高価なものとなる。そこで、例えば、特許文献１には、複数の回転楕円面を組み合わせてリフレクタを構成し、リフレクタを構成する各回転楕円面の焦点にそれぞれＬＥＤを配置することにより、複数のＬＥＤを光源として車両用前照灯ユニットを構成する技術が開示されている。
特開２００６−１１４２７４公報 On the other hand, high-power LEDs are extremely expensive. Therefore, for example, in Patent Document 1, a reflector is configured by combining a plurality of spheroids, and the LEDs are arranged at the focal points of the spheroids constituting the reflector, thereby using the plurality of LEDs as a light source for a vehicle. A technique for configuring a headlamp unit is disclosed.
JP 2006-114274 A

しかしながら、上述の特許文献１に開示された技術では、リフレクタの形状が複雑化する。そればかりか、使用可能なＬＥＤの数がリフレクタに形成される回転楕円面の数によって制限されてしまうため、所望の照射領域を十分な光量で照射することが困難となる虞がある。   However, in the technique disclosed in Patent Document 1 described above, the shape of the reflector is complicated. In addition, since the number of usable LEDs is limited by the number of spheroids formed on the reflector, it may be difficult to irradiate a desired irradiation area with a sufficient amount of light.

本発明は、簡単な構成で、所望の照射領域を十分な光量で照射することができる照明装置を提供することを目的とする。   An object of this invention is to provide the illuminating device which can irradiate a desired irradiation area | region with sufficient light quantity by simple structure.

本発明は、光源として複数の発光ダイオードが配列された光源ユニットと、前記光源からの出射光を入射して所定形状の光束を形成する導光板と、前記導光板から出射された光束を集光方向に屈折させて出射する照射レンズと、を具備したことを特徴とする。   The present invention includes a light source unit in which a plurality of light emitting diodes are arranged as a light source, a light guide plate that forms a light beam having a predetermined shape upon incidence of light emitted from the light source, and a light beam emitted from the light guide plate. And an irradiating lens that refracts and emits in the direction.

本発明の照明装置によれば、簡単な構成で、所望の照射領域を十分な光量で照射することができる。   According to the illumination device of the present invention, it is possible to irradiate a desired irradiation area with a sufficient amount of light with a simple configuration.

以下、図面を参照して本発明の実施形態を説明する。図面は本発明の一実施形態に係わり、図１は照明装置の光軸方向に沿う要部断面図、図２は図１のＩ−Ｉ断面図、図３は照明装置の分解斜視図、図４，５はＬＥＤから出射した光の挙動を示す説明図、図６は照明装置を車両用フォグランプに適用した一例を示す説明図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The drawings relate to an embodiment of the present invention, FIG. 1 is a cross-sectional view of a principal part along the optical axis direction of the lighting device, FIG. 2 is a cross-sectional view taken along line II in FIG. 4 and 5 are explanatory views showing the behavior of light emitted from the LED, and FIG. 6 is an explanatory view showing an example in which the lighting device is applied to a vehicle fog lamp.

図１〜３において、符号１は照明装置を示し、本実施形態においては、車両１００（図６参照）に搭載されるフォグランプを示す。この照明装置１は、例えば、複数（例えば、５個）の表面実装型の発光ダイオード（ＬＥＤ）１２を光源とする光源ユニット１０と、この光源ユニット１０に冠設するレンズ光学系ユニット２０とを有する。   1-3, the code | symbol 1 shows an illuminating device and shows the fog lamp mounted in the vehicle 100 (refer FIG. 6) in this embodiment. The illuminating device 1 includes, for example, a light source unit 10 using a plurality of (for example, five) surface-mounted light emitting diodes (LEDs) 12 as a light source, and a lens optical system unit 20 provided on the light source unit 10. Have.

光源ユニット１０は、ＬＥＤ基板１１を有する。ＬＥＤ基板１１は、例えば、車幅方向に長尺な略矩形形状の基板で構成され、各ＬＥＤ１２を半田付け等によって保持し、さらに、保持した各ＬＥＤ１２を図示しない電気回路に電気的に接続する。ここで、本実施形態において、各ＬＥＤ１２は、例えば、車幅方向に沿って等間隔毎に１列に配置されている。また、各ＬＥＤ１２の発光効率を向上するため、ＬＥＤ基板１１の裏面には放熱フィン１３が固着されている。   The light source unit 10 has an LED substrate 11. The LED board 11 is formed of, for example, a substantially rectangular board elongated in the vehicle width direction, holds each LED 12 by soldering or the like, and further electrically connects each held LED 12 to an electric circuit (not shown). . Here, in this embodiment, each LED12 is arrange | positioned at 1 row at equal intervals along the vehicle width direction, for example. Moreover, in order to improve the light emission efficiency of each LED 12, the radiation fin 13 is fixed to the back surface of the LED substrate 11.

レンズ光学系ユニット２０は、導光板と２５、シリンドリカルレンズ２６と、照射レンズ２７とが、レンズ筐体２１内に収容保持されて要部が構成されている。   The lens optical system unit 20 includes a light guide plate 25, a cylindrical lens 26, and an irradiation lens 27 that are housed and held in a lens housing 21 to form a main part.

本実施形態において、レンズ筐体２１は、車幅方向に扁平な略角筒形状をなし、その光軸方向の一端にＬＥＤ挿入口３０が開口されている。また、レンズ筐体２１の光軸方向の他端には、ＬＥＤ挿入口３０に対向する位置に、照明光の出射口３１が開口されている。そして、図１，２に示すように、レンズ筐体２１は、光源ユニット１０に冠設した際に、ＬＥＤ挿入口３０を通じて各ＬＥＤ１２を内部に露呈させ、各ＬＥＤ１２出射面１２ａを出射口３１に対向させる。   In the present embodiment, the lens housing 21 has a substantially rectangular tube shape that is flat in the vehicle width direction, and the LED insertion port 30 is opened at one end in the optical axis direction. Further, at the other end of the lens housing 21 in the optical axis direction, an illumination light exit port 31 is opened at a position facing the LED insertion port 30. As shown in FIGS. 1 and 2, when the lens housing 21 is mounted on the light source unit 10, each LED 12 is exposed to the inside through the LED insertion port 30, and each LED 12 emission surface 12 a is exposed to the emission port 31. Make them face each other.

また、レンズ筐体２１は、一側に開口するレンズ挿入口３３を有し、このレンズ挿入口３３に隣接する各側壁の内面に、ＬＥＤ挿入口３０側から順に、互いに対向するシリンドリカルレンズ保持溝３５、及び、照射レンズ保持溝３６を有する。   The lens housing 21 has a lens insertion opening 33 that opens to one side. Cylindrical lens holding grooves that face each other in order from the LED insertion opening 30 side on the inner surface of each side wall adjacent to the lens insertion opening 33. 35 and an irradiation lens holding groove 36.

導光板２５は、例えば、扁平な略立方体形状をなす板状の光学部材で構成されている。この導光板２５は、入射面２５ａが各ＬＥＤ１２の出射面１２ａに当接された状態で、レンズ筐体２１内に収容されている。そして、導光板２５は、各ＬＥＤ１２からの入射光を内部で全反射させながら出射面２５ｂに導くことにより、例えば、扁平な矩形の光束を形成する（図４，５参照）。   The light guide plate 25 is constituted by, for example, a plate-like optical member having a flat and substantially cubic shape. The light guide plate 25 is accommodated in the lens housing 21 in a state where the incident surface 25 a is in contact with the emission surface 12 a of each LED 12. And the light guide plate 25 forms, for example, a flat rectangular light beam by guiding the incident light from each LED 12 to the emission surface 25b while totally reflecting the light internally (see FIGS. 4 and 5).

シリンドリカルレンズ２６は、例えば、導光板２５の出射面２５ｂに当接する平坦な入射面２６ａと、上下方向に所定曲率で湾曲する出射面２６ｂとを備えた光学部材で構成されている。また、本実施形態において、シリンドリカルレンズ２６は、レンズ筐体２１の各シリンドリカルレンズ保持溝３５に嵌合するキー２６ｃを上下縁部にそれぞれ有する。このシリンドリカルレンズ２６は、キー２６ｃがシリンドリカルレンズ保持溝３５に嵌合することによってレンズ筐体２１内に保持され、ＬＥＤ１２との間に導光板２５を挟持する。そして、シリンドリカルレンズ２６は、導光板２５の出射面２５ｂからの光が入射されると、主として上下方向に拡散する光を集光方向に屈折させて出射する（図４，５参照）。   The cylindrical lens 26 is composed of, for example, an optical member that includes a flat incident surface 26a that abuts on the output surface 25b of the light guide plate 25 and an output surface 26b that curves in a vertical direction with a predetermined curvature. In this embodiment, the cylindrical lens 26 has a key 26 c that fits in each cylindrical lens holding groove 35 of the lens housing 21 at the upper and lower edges. The cylindrical lens 26 is held in the lens housing 21 by fitting the key 26c into the cylindrical lens holding groove 35, and sandwiches the light guide plate 25 between the LED 12 and the cylindrical lens 26. And when the light from the output surface 25b of the light guide plate 25 is incident, the cylindrical lens 26 refracts mainly the light diffusing in the vertical direction and emits it (see FIGS. 4 and 5).

照射レンズ２７は、例えば、入射面２７ａ及び出射面２７ｂが両突のフルネルレンズの光学面の一部に基づいて設計された光学部材で構成されている。また、本実施形態において、照射レンズ２７は、レンズ筐体２１の各照射レンズ保持溝３６に勘合するキー２７ｃを上下縁部にそれぞれ有する。   The irradiation lens 27 is composed of, for example, an optical member that is designed based on a part of the optical surface of a full-lens with a light incident surface 27a and a light emission surface 27b. Moreover, in this embodiment, the irradiation lens 27 has the key 27c fitted in each irradiation lens holding groove 36 of the lens housing | casing 21 in an up-and-down edge part, respectively.

ここで、図４に示すように、本実施形態において、入射面２７ａ及び出射面２７ｂには、フルネルレンズの光学面のうち光軸よりも上方に偏倚した部位が適用されている。また、図４，５に示すように、入射面２７ａ及び出射面２７ｂの曲率は、上下方向の曲率が車幅方向の曲率よりも相対的に大きく設定されている。   Here, as shown in FIG. 4, in the present embodiment, the incident surface 27 a and the exit surface 27 b are applied with portions of the optical surface of the Furnell lens that are biased above the optical axis. As shown in FIGS. 4 and 5, the curvatures of the entrance surface 27 a and the exit surface 27 b are set such that the curvature in the vertical direction is relatively larger than the curvature in the vehicle width direction.

この照射レンズ２７は、図４，５に示すように、シリンドリカルレンズ２６からの出射光が入射されると、当該入射光を集光方向に屈折させて出射する。その際、入、出射面２７ａ，２７ｂは上下方向の曲率が車幅方向の曲率よりも大きいため、入射光は、車幅方向よりも上下方向に相対的に大きく屈折される。また、入、出射面２７ａ，２７ｂには、フルネルレンズの光学面のうち光軸よりも上方に偏倚した部位が適用されているため、入射光の上下方向への屈折は下方に偏倚する。従って、図６に示すように、本実施形態において、照明装置１は、上下方向に対して車幅方向に極めて広角な矩形の光束を、車両１００の前方斜め下方に指向させて照射する。   As shown in FIGS. 4 and 5, the irradiation lens 27 refracts and emits the incident light in the condensing direction when the emitted light from the cylindrical lens 26 is incident. At that time, the entrance and exit surfaces 27a and 27b have a larger curvature in the vertical direction than that in the vehicle width direction, so that the incident light is refracted relatively larger in the vertical direction than in the vehicle width direction. In addition, the entrance and exit surfaces 27a and 27b are applied with portions of the optical surface of the Furnell lens that are biased above the optical axis, so that the refraction of the incident light in the vertical direction is biased downward. Therefore, as shown in FIG. 6, in the present embodiment, the illuminating device 1 irradiates a rectangular light beam having a very wide angle in the vehicle width direction with respect to the vertical direction, directed obliquely downward and forward of the vehicle 100.

なお、図中符号３８は側板であり、この側板３８は、導光板２５、シリンドリカルレンズ２６、及び照射レンズ２７をレンズ筐体２１内に収容後にレンズ挿入口３３を閉塞する。   In the figure, reference numeral 38 denotes a side plate. The side plate 38 closes the lens insertion port 33 after the light guide plate 25, the cylindrical lens 26, and the irradiation lens 27 are accommodated in the lens housing 21.

このような実施形態によれば、複数のＬＥＤ１２から出射する光を導光板２５に入射させることにより、各ＬＥＤ１２から出射される光を用いて所定形状（例えば、矩形形状）の光束を形成することができる。そして、このように形成された光束の散乱を、シリンドリカルレンズ２６及び照射レンズ２７を用いて制御することにより、簡単な構成で、所望の照射領域を十分な光量で照射する照明光を形成することができる。   According to such an embodiment, a light beam having a predetermined shape (for example, a rectangular shape) is formed by using the light emitted from each LED 12 by causing the light emitted from the plurality of LEDs 12 to enter the light guide plate 25. Can do. Then, by controlling the scattering of the light flux formed in this way by using the cylindrical lens 26 and the irradiation lens 27, illumination light for irradiating a desired irradiation region with a sufficient amount of light can be formed with a simple configuration. Can do.

すなわち、複数のＬＥＤ１２から出射される光を導光板２５の内部で反射させて所定形状の光束を形成するため、複雑なリフレクタ等が不要となり構造を簡素化することができる。また、導光板２５に対して任意の数のＬＥＤ１２を光源として配置することができるので、十分な光量を確保することができる。   That is, since the light emitted from the plurality of LEDs 12 is reflected inside the light guide plate 25 to form a light beam having a predetermined shape, a complicated reflector or the like is not required and the structure can be simplified. In addition, since an arbitrary number of LEDs 12 can be disposed as light sources with respect to the light guide plate 25, a sufficient amount of light can be secured.

なお、上述の実施形態においては、導光板と照射レンズとの間にシリンドリカルレンズを介装した構成の一例について説明したが、本発明はこれに限定されるものではなく、照明光に要求される特性によっては、シリンドリカルレンズを省略することも可能である。また、シリンドリカルレンズに代えて他の光学特性を有するレンズを介装してもよい。   In the above-described embodiment, an example of a configuration in which a cylindrical lens is interposed between the light guide plate and the irradiation lens has been described. However, the present invention is not limited to this, and is required for illumination light. Depending on the characteristics, the cylindrical lens can be omitted. Further, a lens having other optical characteristics may be interposed instead of the cylindrical lens.

また、上述の実施形態においては、複数のＬＥＤを等間隔毎に配列した構成の一例について説明したが、本発明はこれに限定されるものではなく、例えば、ＬＥＤを不等な間隔で配置して照明光の配光特性を適宜チューニングしてもよい。   In the above-described embodiment, an example of a configuration in which a plurality of LEDs are arranged at equal intervals has been described. However, the present invention is not limited to this, and for example, LEDs are arranged at unequal intervals. Thus, the light distribution characteristics of the illumination light may be appropriately tuned.

照明装置の光軸方向に沿う要部断面図Cross-sectional view of main parts along the optical axis direction of the illumination device 図１のＩ−Ｉ断面図II sectional view of FIG. 照明装置の分解斜視図Exploded perspective view of lighting device ＬＥＤから出射した光の挙動を示す説明図Explanatory diagram showing behavior of light emitted from LED ＬＥＤから出射した光の挙動を示す説明図Explanatory diagram showing behavior of light emitted from LED 照明装置を車両用フォグランプに適用した一例を示す説明図Explanatory drawing which shows an example which applied the illuminating device to the fog lamp for vehicles

符号の説明Explanation of symbols

１…照明装置、１０…光源ユニット、１１…ＬＥＤ基板、１２…発光ダイオード（光源）、１２ａ…出射面、２０…レンズ光学系ユニット、２５…導光板、２５ａ…入射面、２５ｂ…出射面、２６…シリンドリカルレンズ、２６ａ…入射面、２６ｂ…出射面、２７…照射レンズ、２７ａ…入射面、２７ｂ…出射面   DESCRIPTION OF SYMBOLS 1 ... Illuminating device, 10 ... Light source unit, 11 ... LED board, 12 ... Light emitting diode (light source), 12a ... Output surface, 20 ... Lens optical system unit, 25 ... Light guide plate, 25a ... Incident surface, 25b ... Output surface, 26 ... Cylindrical lens, 26a ... Incident surface, 26b ... Emission surface, 27 ... Irradiation lens, 27a ... Incident surface, 27b ... Emission surface

Claims (1)

光源として複数の発光ダイオードが配列された光源ユニットと、
前記光源からの出射光を入射して所定形状の光束を形成する導光板と、
前記導光板から出射された光束を集光方向に屈折させて出射する照射レンズと、を具備したことを特徴とする照明装置。 A light source unit in which a plurality of light emitting diodes are arranged as a light source;
A light guide plate that receives light emitted from the light source to form a light beam having a predetermined shape;
An illuminating device comprising: an irradiation lens that refracts and emits a light beam emitted from the light guide plate in a light collecting direction.
JP2006327531A 2006-12-04 2006-12-04 Lighting system Pending JP2008140713A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
JP2006327531A JP2008140713A (en) 2006-12-04 2006-12-04 Lighting system

Publications (1)

Publication Number Publication Date
JP2008140713A true JP2008140713A (en) 2008-06-19

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JP2006327531A Pending JP2008140713A (en) 2006-12-04 2006-12-04 Lighting system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170007912A (en) * 2015-07-13 2017-01-23 현대모비스 주식회사 Light guide system for vehicle
CN108072008A (en) * 2016-11-17 2018-05-25 Lg电子株式会社 Vehicle lamp
KR101905715B1 (en) * 2017-07-12 2018-10-11 주식회사 아이원기술연구소 High luminance surface LED lighting lamp for auxiliary brake lamp of vehicles
JP2018206600A (en) * 2017-06-05 2018-12-27 パナソニックＩｐマネジメント株式会社 Luminaire and vehicular headlight

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170007912A (en) * 2015-07-13 2017-01-23 현대모비스 주식회사 Light guide system for vehicle
KR102396898B1 (en) * 2015-07-13 2022-05-12 현대모비스 주식회사 Light guide system for vehicle
CN108072008A (en) * 2016-11-17 2018-05-25 Lg电子株式会社 Vehicle lamp
EP3330599A1 (en) * 2016-11-17 2018-06-06 LG Electronics Inc. Headlamp for vehicle
US10408404B2 (en) 2016-11-17 2019-09-10 Lg Electronics Inc. Light lamp for vehicle
JP2018206600A (en) * 2017-06-05 2018-12-27 パナソニックＩｐマネジメント株式会社 Luminaire and vehicular headlight
KR101905715B1 (en) * 2017-07-12 2018-10-11 주식회사 아이원기술연구소 High luminance surface LED lighting lamp for auxiliary brake lamp of vehicles

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