JP2021111447A - Vehicular lighting fixture - Google Patents

Vehicular lighting fixture Download PDF

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Publication number
JP2021111447A
JP2021111447A JP2020000391A JP2020000391A JP2021111447A JP 2021111447 A JP2021111447 A JP 2021111447A JP 2020000391 A JP2020000391 A JP 2020000391A JP 2020000391 A JP2020000391 A JP 2020000391A JP 2021111447 A JP2021111447 A JP 2021111447A
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Prior art keywords
light
light source
lens
distribution pattern
rear direction
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JP2020000391A
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JP7439516B2 (en
Inventor
洋弥 今村
Hiroya Imamura
洋弥 今村
英治 鈴木
Eiji Suzuki
英治 鈴木
悠二 大橋
Yuji Ohashi
悠二 大橋
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Ichikoh Industries Ltd
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Ichikoh Industries Ltd
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Priority to JP2020000391A priority Critical patent/JP7439516B2/en
Priority to PCT/JP2021/000230 priority patent/WO2021141052A1/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
    • F21S41/10—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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled 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
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings

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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)
  • Planar Illumination Modules (AREA)

Abstract

To provide a vehicular lighting fixture in which a first light source and a second light source are provided on the same substrate, and which can form a light distribution pattern for passing by and a light distribution pattern for travelling properly with the light from these.SOLUTION: A vehicular lighting fixture 10 includes: a first light source 11 for emitting light L1 for forming a light distribution pattern LP for passing by; a second light source 12 for emitting light L2 for forming a light distribution pattern HP for travelling; a projection lens 17 for forming the light distribution pattern LP for passing by projecting the light L1 to the front side in the frontward/backward direction in which a lens axis La extends, and for forming the light distribution pattern HP for travelling by projecting the light L2 to the front side in the frontward/backward direction; and a substrate 18 in which the first light source 11 and the second light source 12 are provided. The first light source 11 and the second light source 12 are inclined as an angle of depression with respect to the frontward/backward direction while emission light axes Li of each other are in parallel, and the second light source 12 is provided at a position separated from the projection lens 17 further than the first light source 11.SELECTED DRAWING: Figure 2

Description

本開示は、車両用灯具に関する。 The present disclosure relates to vehicle lamps.

車両用灯具は、第１光源からの光を投影レンズから出射させてすれ違い用配光パターンを形成し、第２光源からの光を投影レンズから出射させて走行用配光パターンを形成するものがある。 In vehicle lighting fixtures, light from the first light source is emitted from a projection lens to form a passing light distribution pattern, and light from a second light source is emitted from a projection lens to form a traveling light distribution pattern. be.

このような車両用灯具は、第１光源と第２光源とを同一の基板に設けることで、簡易な構成とすることが考えられている（例えば、特許文献１等参照）。 It is considered that such a vehicle lamp has a simple configuration by providing the first light source and the second light source on the same substrate (see, for example, Patent Document 1 and the like).

特開２０１７−１９９６６０号公報JP-A-2017-199660

ここで、上記の車両用灯具は、第１光源からの光と第２光源からの光とを交差させてから投影レンズで投影することで、すれ違い用配光パターンと走行用配光パターンとを形成する。これに対して、上記の車両用灯具は、一般的に、第１光源や第２光源が基板に対して直交する方向に光を出射する。このため、上記の車両用灯具は、第１光源および第２光源を同一の基板に設けつつ、それらからの光で適切にすれ違い用配光パターンや走行用配光パターンを形成する点で改善の余地がある。 Here, in the above-mentioned vehicle lighting equipment, the light from the first light source and the light from the second light source are crossed and then projected by the projection lens to obtain a light distribution pattern for passing and a light distribution pattern for traveling. Form. On the other hand, the above-mentioned vehicle lamp generally emits light in a direction in which the first light source and the second light source are orthogonal to the substrate. Therefore, the above-mentioned vehicle lamps are improved in that the first light source and the second light source are provided on the same substrate, and the light from them appropriately forms a light distribution pattern for passing and a light distribution pattern for traveling. There is room.

本開示は、上記の事情に鑑みて為されたもので、第１光源および第２光源を同一の基板に設けつつ、それらからの光で適切にすれ違い用配光パターンや走行用配光パターンを形成することのできる車両用灯具を提供することを目的とする。 The present disclosure has been made in view of the above circumstances, and while the first light source and the second light source are provided on the same substrate, the light distribution pattern for passing and the light distribution pattern for traveling are appropriately provided by the light from them. It is an object of the present invention to provide a vehicle lamp that can be formed.

本開示の車両用灯具は、すれ違い用配光パターンを形成する光を出射する第１光源と、走行用配光パターンを形成する光を出射する第２光源と、前記第１光源からの光をレンズ軸が延びる前後方向の前側に投影して前記すれ違い用配光パターンを形成するとともに、前記第２光源からの光を前記前後方向の前側に投影して前記走行用配光パターンを形成する投影レンズと、前記第１光源および前記第２光源が設けられる基板と、を備え、前記第１光源と前記第２光源とは、互いの出射光軸が平行とされつつ、前記出射光軸が前記前後方向に対して伏角とされて傾斜されており、前記第２光源は、前記前後方向で前記第１光源よりも前記投影レンズから離れた位置に設けられていることを特徴とする。 The vehicle lighting equipment of the present disclosure has a first light source that emits light that forms a light distribution pattern for passing, a second light source that emits light that forms a light distribution pattern for traveling, and light from the first light source. A projection that projects the light distribution pattern for passing each other on the front side in the front-rear direction in which the lens axis extends, and projects the light from the second light source on the front side in the front-rear direction to form the light distribution pattern for traveling. A lens and a substrate provided with the first light source and the second light source are provided, and the first light source and the second light source have their emission light axes parallel to each other, and the emission light axis is the same. The second light source is inclined with a dip angle with respect to the front-rear direction, and is characterized in that the second light source is provided at a position farther from the projection lens than the first light source in the front-rear direction.

本開示の車両用灯具によれば、第１光源および第２光源を同一の基板に設けつつ、それらからの光で適切にすれ違い用配光パターンや走行用配光パターンを形成できる。 According to the vehicle lighting equipment of the present disclosure, while providing the first light source and the second light source on the same substrate, it is possible to appropriately form a passing light distribution pattern and a traveling light distribution pattern with the light from them.

本開示に係る車両用灯具の一実施形態に係る一例としての車両用灯具の構成を示す説明図である。It is explanatory drawing which shows the structure of the vehicle lamp as an example which concerns on one Embodiment of the vehicle lamp which concerns on this disclosure. 図１のＩ−Ｉ線に沿って得られた断面図である。It is sectional drawing obtained along the line I-I of FIG. 車両用灯具の第１レンズ導光部の構成を示す説明図である。It is explanatory drawing which shows the structure of the 1st lens light guide part of a vehicle lamp. 車両用灯具の第２レンズ導光部の構成を示す説明図である。It is explanatory drawing which shows the structure of the 2nd lens light guide part of a vehicle lamp. すれ違い用配光パターンを示す説明図である。It is explanatory drawing which shows the light distribution pattern for passing. 走行用配光パターンを示す説明図である。It is explanatory drawing which shows the light distribution pattern for traveling. 走行用配光パターンとすれ違い用配光パターンと重ねた様子を示す説明図である。It is explanatory drawing which shows the state which overlapped with the light distribution pattern for running and the light distribution pattern for passing.

以下に、本開示に係る車両用灯具の一実施形態としての車両用灯具１０の実施例１について図１から図７を参照しつつ説明する。なお、図２では、煩雑となることを避けるために断面を示すハッチを省略している。 Hereinafter, a first embodiment of the vehicle lamp 10 as an embodiment of the vehicle lamp according to the present disclosure will be described with reference to FIGS. 1 to 7. In FIG. 2, the hatch showing the cross section is omitted in order to avoid complication.

車両用灯具１０は、自動車等の車両に用いられる灯具として用いられるもので、例えば、ヘッドランプやフォグランプ等に用いられる。車両用灯具１０は、車両の前部の左右両側で、ランプハウジングの開放された前端がアウターレンズで覆われて形成される灯室に、上下方向用光軸調整機構や幅方向用光軸調整機構を介して設けられる。以下の説明では、車両用灯具１０において、光を照射する方向となる投影レンズ１７のレンズ軸Ｌａが伸びる方向を前後方向（図面ではＺとする）とし、前後方向を水平面に沿う状態とした際の鉛直方向を上下方向（図面ではＹとする）とし、前後方向および上下方向に直交する方向（水平方向）を幅方向（図面ではＸとする）とする。この前後方向の前側は、車両用灯具１０において車両前方を指し示すこととなる。 The vehicle lamp 10 is used as a lamp used in a vehicle such as an automobile, and is used, for example, in a head lamp, a fog lamp, or the like. The vehicle lighting fixture 10 has an optical axis adjustment mechanism for the vertical direction and an optical axis adjustment for the width direction in a lamp chamber formed by covering the open front end of the lamp housing with an outer lens on both the left and right sides of the front portion of the vehicle. It is provided via a mechanism. In the following description, in the vehicle lighting equipment 10, when the direction in which the lens axis La of the projection lens 17 which is the direction of irradiating light extends is the front-rear direction (Z in the drawing) and the front-rear direction is along the horizontal plane. The vertical direction is the vertical direction (Y in the drawing), and the direction orthogonal to the front-back direction and the vertical direction (horizontal direction) is the width direction (X in the drawing). The front side in the front-rear direction points to the front of the vehicle in the vehicle lamp 10.

車両用灯具１０は、図１および図２に示すように、複数の第１光源１１と複数の第２光源１２とヒートシンク部材１３と第１導光レンズ１４と第２導光レンズ１５とシェード１６と投影レンズ１７とを備え、前照灯ユニットを構成する。車両用灯具１０では、前後方向が投影レンズ１７のレンズ軸Ｌａにより規定される。そのレンズ軸Ｌａは、投影レンズ１７における光学的な中心となる軸線である。 As shown in FIGS. 1 and 2, the vehicle lamp 10 includes a plurality of first light sources 11, a plurality of second light sources 12, a heat sink member 13, a first light guide lens 14, a second light guide lens 15, and a shade 16. And a projection lens 17 are provided to form a headlight unit. In the vehicle lamp 10, the front-rear direction is defined by the lens axis La of the projection lens 17. The lens axis La is an axis that is the optical center of the projection lens 17.

複数の第１光源１１は、幅方向に整列されており、実施例１では７個（図３参照）が整列されている。各第１光源１１は、ＬＥＤ（Light Emitting Diode）等の発光素子で構成され、それぞれが基板１８に実装されている。その基板１８は、平板状とされて、前後方向に対して傾斜された状態でヒートシンク部材１３の前面１３ａに固定されている。この各第１光源１１は、点灯制御回路から電力が供給されて適宜点灯される。７個の第１光源１１は、上下方向に直交する平面において、真ん中の１個がレンズ軸Ｌａ上に設けられ、幅方向で外側に向かうに連れて間隔が大きくされて、幅方向に並べられている（図３参照）。実施例１では、各第１光源１１の幅方向の間隔の一例として、レンズ軸Ｌａ上の中心位置から両隣までの間隔を６ｍｍとし、それらから隣の外側までの間隔を７ｍｍとし、それらから隣の外側となる最外側までの間隔を１８ｍｍとしている。なお、第１光源１１の数や間隔は適宜設定すれば、均一な間隔としてもよく、間隔の差異を不規則なものとしてもよく、実施例１の構成に限定されない。 The plurality of first light sources 11 are aligned in the width direction, and in the first embodiment, seven (see FIG. 3) are aligned. Each first light source 11 is composed of a light emitting element such as an LED (Light Emitting Diode), and each is mounted on a substrate 18. The substrate 18 has a flat plate shape and is fixed to the front surface 13a of the heat sink member 13 in a state of being inclined with respect to the front-rear direction. Each of the first light sources 11 is appropriately lit by being supplied with electric power from the lighting control circuit. The seven first light sources 11 are arranged in the width direction, with one in the middle provided on the lens axis La in a plane orthogonal to the vertical direction, and the distance is increased toward the outside in the width direction. (See Fig. 3). In the first embodiment, as an example of the distance between the first light sources 11 in the width direction, the distance from the center position on the lens axis La to both sides is 6 mm, the distance from them to the outside next to them is 7 mm, and the distances from them to the neighbors are set to 7 mm. The distance to the outermost side, which is the outer side of the lens, is 18 mm. If the number and spacing of the first light sources 11 are appropriately set, the spacing may be uniform or the spacing may be irregular, and the configuration is not limited to that of the first embodiment.

複数の第２光源１２は、幅方向に整列されており、実施例１では１２個（図４参照）が整列されている。各第２光源１２は、ＬＥＤ等の発光素子で構成され、第１光源１１よりも上下方向の下側であって前後方向の後側で、それぞれが第１光源１１と同じ基板１８に同一平面上に実装されている。このため、基板１８および前面１３ａは、法線方向が、前後方向および上下方向を含む面上で前後方向に対して伏角とされている。この各第２光源１２は、点灯制御回路から電力が供給されることで、適宜一斉にまたは個別に点灯される。なお、第２光源１２の数は適宜設定すればよく、実施例１の構成に限定されない。 The plurality of second light sources 12 are aligned in the width direction, and in the first embodiment, 12 (see FIG. 4) are aligned. Each second light source 12 is composed of a light emitting element such as an LED, and is on the same substrate 18 as the first light source 11 on the lower side in the vertical direction and the rear side in the front-rear direction than the first light source 11. Implemented above. Therefore, the substrate 18 and the front surface 13a have a normal direction as a dip angle with respect to the front-rear direction on a surface including the front-rear direction and the up-down direction. Each of the second light sources 12 is appropriately turned on all at once or individually by being supplied with electric power from the lighting control circuit. The number of the second light sources 12 may be appropriately set, and is not limited to the configuration of the first embodiment.

この各第１光源１１および各第２光源１２は、平面発光部から光を出射するもので、実装された基板１８と直交する方向に出射光軸Ｌｉが設定されている。以下では、各第１光源１１が出射したものを光Ｌ１とし、各第２光源１２が出射したものを光Ｌ２とする。そして、各第１光源１１および各第２光源１２は、同一の基板１８に実装されることで、それぞれの出射光軸Ｌｉが平行とされている。各出射光軸Ｌｉは、前後方向に対して伏角で３０度から５０度の範囲内とされ、実施例１では４５度とされている。この各出射光軸Ｌｉは、実施例１では、基板１８における前後方向に対する角度が定められることにより設定される。 Each of the first light source 11 and each second light source 12 emits light from a plane light emitting unit, and the emission optical axis Li is set in a direction orthogonal to the mounted substrate 18. In the following, what is emitted by each of the first light sources 11 is referred to as light L1, and what is emitted by each of the second light sources 12 is referred to as light L2. The first light source 11 and the second light source 12 are mounted on the same substrate 18, so that their respective emission optical axes Li are parallel. Each emission optical axis Li has a dip angle in the range of 30 to 50 degrees with respect to the front-rear direction, and is 45 degrees in the first embodiment. In the first embodiment, each of the emitted optical axes Li is set by determining an angle with respect to the front-rear direction on the substrate 18.

ヒートシンク部材１３は、各第１光源１１および各第２光源１２で発生する熱を外部に逃がす放熱部材であり、熱伝導率の高い金属材料や樹脂材料で形成される。ヒートシンク部材１３では、前面１３ａとは反対側に、板状とされた複数の放熱フィン１３ｂが並列して設けられている（図１参照）。ヒートシンク部材１３では、各出射光軸Ｌｉを上記の角度とするように、前面１３ａに基板１８が取り付けられる。 The heat sink member 13 is a heat radiating member that releases heat generated by each of the first light sources 11 and each of the second light sources 12 to the outside, and is made of a metal material or a resin material having high thermal conductivity. In the heat sink member 13, a plurality of plate-shaped heat radiating fins 13b are provided in parallel on the side opposite to the front surface 13a (see FIG. 1). In the heat sink member 13, the substrate 18 is attached to the front surface 13a so that each emission optical axis Li has the above angle.

第１導光レンズ１４は、基板１８に実装された各第１光源１１から出射された光Ｌ１を投影レンズ１７へと導く。第１導光レンズ１４は、透明な樹脂で形成されており、図３に示すように、各第１光源１１に個別に対応されて幅方向に並べられた７個の第１レンズ導光部２１を有する。各第１レンズ導光部２１は、対応する第１光源１１に対向された第１導光入射面２２と、投影レンズ１７側に向けられた第１導光出射面２３と、を有する。 The first light guide lens 14 guides the light L1 emitted from each of the first light sources 11 mounted on the substrate 18 to the projection lens 17. The first light guide lens 14 is made of a transparent resin, and as shown in FIG. 3, seven first lens light guide portions arranged in the width direction individually corresponding to each first light source 11. Has 21. Each first lens light guide unit 21 has a first light guide incident surface 22 facing the corresponding first light source 11, and a first light guide exit surface 23 directed toward the projection lens 17.

各第１導光入射面２２は、図２に部分的に拡大して示すように、全体形状が第１レンズ導光部２１の内側（第１光源１１とは反対側）に凹んでおり、その中央で外側に凸に湾曲された湾曲入射面２２ａと、それを取り巻く環状入射面２２ｂと、を有する。また、各第１導光入射面２２の周辺では、環状入射面２２ｂを取り囲む円錐状の反射面２２ｃが設けられている。各湾曲入射面２２ａは、後側にある焦点が対応する第１光源１１の発光中心に略一致されており、第１光源１１から出射される光Ｌ１を出射光軸Ｌｉと平行に進行する平行光として第１レンズ導光部２１内に入射させる。なお、この平行光（平行な光）とは、光Ｌ１が湾曲入射面２２ａを経ることでコリメートされた状態の光のことをいう。 As shown in a partially enlarged view of FIG. 2, each first light guide incident surface 22 has an overall shape recessed inside the first lens light guide portion 21 (on the side opposite to the first light source 11). It has a curved incident surface 22a that is convexly curved outward at the center thereof, and an annular incident surface 22b that surrounds the curved incident surface 22a. Further, around each first light guide incident surface 22, a conical reflecting surface 22c surrounding the annular incident surface 22b is provided. Each curved incident surface 22a substantially coincides with the light emitting center of the corresponding first light source 11 with a focal point on the rear side, and the light L1 emitted from the first light source 11 travels parallel to the emitted optical axis Li. Light is incident on the light source 21 of the first lens. The parallel light (parallel light) refers to light in a state in which light L1 is collimated by passing through a curved incident surface 22a.

環状入射面２２ｂは、各第１光源１１側へと突出して設けられており、第１光源１１からの光Ｌ１のうち、湾曲入射面２２ａへと進行しないものを第１レンズ導光部２１に入射させる。反射面２２ｃは、環状入射面２２ｂから第１導光レンズ１４内に入射した光Ｌ１が進行する位置に形成されている。反射面２２ｃは、環状入射面２２ｂから入射した光Ｌ１を反射すると、出射光軸Ｌｉと平行に進行する平行光とする。なお、反射面２２ｃは、全反射を利用して光Ｌ１を反射してもよく、蒸着や塗装等によりアルミや銀等を接着させることで光Ｌ１を反射してもよい。これらのことから、各第１導光入射面２２は、対応する第１光源１１から出射された光Ｌ１を、出射光軸Ｌｉと平行に進行する平行光として第１導光レンズ１４内に進行させて、第１導光出射面２３へと導く。 The annular incident surface 22b is provided so as to project toward each first light source 11, and among the light L1 from the first light source 11, the light L1 that does not travel to the curved incident surface 22a is directed to the first lens light guide portion 21. Make it incident. The reflecting surface 22c is formed at a position where the light L1 incident on the first light guide lens 14 travels from the annular incident surface 22b. When the light L1 incident from the annular incident surface 22b is reflected, the reflecting surface 22c is a parallel light traveling in parallel with the emitted light axis Li. The reflecting surface 22c may reflect the light L1 by utilizing total reflection, or may reflect the light L1 by adhering aluminum, silver, or the like by vapor deposition, painting, or the like. From these facts, each of the first light guide incident surfaces 22 advances the light L1 emitted from the corresponding first light source 11 into the first light guide lens 14 as parallel light traveling in parallel with the emitted light axis Li. Then, it leads to the first light guide emitting surface 23.

各第１導光出射面２３は、第１導光入射面２２から入射されて平行光とされた光Ｌ１を、投影レンズ１７へ向けて出射する。各第１導光出射面２３は、幅方向に直交する断面において、上側出射面部２３ａと下側出射面部２３ｂとを有する。各上側出射面部２３ａは、湾曲入射面２２ａの上側に位置する反射面２２ｃで反射された光Ｌ１が進行する領域に設けられ、第１導光入射面２２側に凸に湾曲された凹面とされている。各上側出射面部２３ａは、第１導光入射面２２を経て平行光とされた光Ｌ１を屈折させることで、投影レンズ１７の後述する下側レンズ部４１へ向けて進行させる。各下側出射面部２３ｂは、前側（投影レンズ１７側）にある焦点が、シェード１６の先端縁１６ａの近傍で下側レンズ部４１の下側焦点Ｆｄを含む焦点面（像面）上に並べられて設定されている。各下側出射面部２３ｂは、第１導光入射面２２を経て平行光とされた光Ｌ１を屈折させることで、先端縁１６ａの近傍に集光させる。 Each first light guide emitting surface 23 emits light L1 incident from the first light guide incident surface 22 and made into parallel light toward the projection lens 17. Each first light guide emitting surface 23 has an upper emitting surface portion 23a and a lower emitting surface portion 23b in a cross section orthogonal to the width direction. Each upper exit surface portion 23a is provided in a region where the light L1 reflected by the reflection surface 22c located above the curved incident surface 22a travels, and is a concave surface that is convexly curved toward the first light guide incident surface 22 side. ing. Each upper exit surface portion 23a is made to travel toward the lower lens portion 41 of the projection lens 17, which will be described later, by refracting the light L1 which is made parallel light through the first light guide incident surface 22. In each lower emitting surface portion 23b, the focal point on the front side (projection lens 17 side) is arranged on the focal plane (image plane) including the lower focal point Fd of the lower lens portion 41 in the vicinity of the tip edge 16a of the shade 16. It has been set. Each lower exit surface portion 23b refracts the light L1 which has been made parallel light through the first light guide incident surface 22, so that the light L1 is focused in the vicinity of the tip edge 16a.

この７個の第１導光出射面２３は、図３に示すように、上下方向に直交する平面において、真ん中の第１レンズ導光部２１のものがレンズ軸Ｌａに直交する直交面Ｏｐと略平行とされ、レンズ軸Ｌａ上から外れると幅方向の外側に向かうに連れて後側（第１光源１１側）へと向かうように、直交面Ｏｐに対して傾斜されている。そして、７個の第１導光出射面２３は、幅方向で外側に向かうに連れて、直交面Ｏｐに対する傾斜角度が大きくされている。すなわち、７個の第１導光出射面２３は、前側にある焦点を先端縁１６ａの近傍で下側焦点Ｆｄを含む焦点面上に並ばせており、対応する第１光源１１の幅方向でのレンズ軸Ｌａからの間隔、すなわち設けられた第１レンズ導光部２１の幅方向でのレンズ軸Ｌａからの間隔に応じて直交面Ｏｐに対する傾斜角度が設定されている。 As shown in FIG. 3, the seven first light source emitting surfaces 23 have an orthogonal surface Op in which the one in the center of the first lens light source 21 is orthogonal to the lens axis La in a plane orthogonal to the vertical direction. It is substantially parallel, and when it deviates from the lens axis La, it is inclined with respect to the orthogonal plane Op so as to move outward in the width direction toward the rear side (first light source 11 side). Then, the inclination angles of the seven first light guide emitting surfaces 23 with respect to the orthogonal surface Op are increased toward the outside in the width direction. That is, the seven first light guide emitting surfaces 23 have their front focal points aligned on the focal planes including the lower focal point Fd in the vicinity of the tip edge 16a, in the width direction of the corresponding first light source 11. The inclination angle with respect to the orthogonal plane Op is set according to the distance from the lens shaft La, that is, the distance from the lens shaft La in the width direction of the provided first lens light guide unit 21.

第１導光レンズ１４は、各第１レンズ導光部２１が上記の位置関係とされた状態で、連結部２４により互いに連結されている。第１導光レンズ１４は、連結部２４がヒートシンク部材１３と投影レンズ１７とを組み付けるレンズホルダまたはヒートシンク部材１３に固定されることで、各第１光源１１および投影レンズ１７に対する各第１レンズ導光部２１の位置関係が設定される。 The first light guide lens 14 is connected to each other by the connecting portion 24 in a state where each first lens light guide portion 21 has the above positional relationship. In the first light guide lens 14, the connecting portion 24 is fixed to the lens holder or the heat sink member 13 to which the heat sink member 13 and the projection lens 17 are assembled, so that the first lens guide to the first light source 11 and the projection lens 17 is obtained. The positional relationship of the light unit 21 is set.

第２導光レンズ１５は、基板１８に実装された各第２光源１２から出射された光Ｌ２を投影レンズ１７へと導く。第２導光レンズ１５は、透明な樹脂で形成されており、図４に示すように、各第２光源１２に個別に対応されて幅方向に並べられた１２個の第２レンズ導光部３１を有する。各第２レンズ導光部３１は、各第２光源１２側すなわち基板１８側が、投影レンズ１７側へ向けて延びる１２個の長尺な棒状部分３２とされており、各棒状部分３２が幅方向で間隔を置いて並列されている。また、各第２レンズ導光部３１は、各棒状部分３２が投影レンズ１７側の板状部分３３で一体化されており、幅方向に拡がる板状とされている。 The second light guide lens 15 guides the light L2 emitted from each of the second light sources 12 mounted on the substrate 18 to the projection lens 17. The second light guide lens 15 is made of a transparent resin, and as shown in FIG. 4, twelve second lens light guide portions arranged in the width direction individually corresponding to each second light source 12. Has 31. Each second lens light guide unit 31 has twelve long rod-shaped portions 32 extending toward the projection lens 17 side on the second light source 12 side, that is, the substrate 18 side, and each rod-shaped portion 32 is in the width direction. They are arranged in parallel at intervals. Further, in each second lens light guide portion 31, each rod-shaped portion 32 is integrated with a plate-shaped portion 33 on the projection lens 17 side, and has a plate shape that expands in the width direction.

各第２レンズ導光部３１は、各棒状部分３２の第２光源１２に対向された箇所を第２導光入射面３４とし、板状部分３３の投影レンズ１７側に向けられた箇所を第２導光出射面３５とする。このため、第２導光入射面３４は、１２個の第２光源１２に個別に対向する１２個の面とされ、第２導光出射面３５は、１２個の第２レンズ導光部３１が幅方向に連結された単一の面とされている。加えて、各第２レンズ導光部３１は、図２に示すように、導光反射面３６が設けられている。この導光反射面３６は、第２レンズ導光部３１における第２導光入射面３４の近傍（主に棒状部分３２）において、上下方向の下側に設けられており、第２導光入射面３４から入射された光Ｌ２を第２導光出射面３５側すなわち前後方向の前側でかつ上側へと反射する。なお、導光反射面３６は、上記のように反射するものであれば、全反射を利用するものでも反射処理を施すものでも他の構成でもよい。第２導光出射面３５は、導光反射面３６により反射された光Ｌ２を投影レンズ１７へ向けて出射する。また、各第２レンズ導光部３１では、第２導光入射面３４から入射された光Ｌ２を第２導光出射面３５側に導くために、他の箇所にも反射面を設けてもよく、実施例１の構成に限定されない。 In each second lens light guide unit 31, the portion of each rod-shaped portion 32 facing the second light source 12 is designated as the second light guide incident surface 34, and the portion of the plate-shaped portion 33 facing the projection lens 17 side is the second. 2 The light guide emitting surface 35 is used. Therefore, the second light guide incident surface 34 is formed into 12 surfaces individually facing the 12 second light sources 12, and the second light guide exit surface 35 is the 12 second lens light guide portions 31. Is a single surface connected in the width direction. In addition, each second lens light guide unit 31 is provided with a light guide reflecting surface 36 as shown in FIG. The light guide reflecting surface 36 is provided on the lower side in the vertical direction in the vicinity of the second light guide incident surface 34 (mainly the rod-shaped portion 32) in the second lens light guide unit 31, and the second light guide incident surface 36 is provided. The light L2 incident from the surface 34 is reflected on the second light guide emitting surface 35 side, that is, on the front side in the front-rear direction and on the upper side. The light guide reflecting surface 36 may have a structure that utilizes total reflection, a reflection process, or another configuration as long as it reflects as described above. The second light guide emitting surface 35 emits the light L2 reflected by the light guide reflecting surface 36 toward the projection lens 17. Further, in each second lens light guide unit 31, in order to guide the light L2 incident from the second light guide incident surface 34 to the second light guide exit surface 35 side, a reflection surface may be provided at other locations as well. Well, it is not limited to the configuration of the first embodiment.

シェード１６は、図１および図２に示すように、第２導光レンズ１５の上に設けられており、幅方向に伸びる板状とされている。このため、シェード１６は、各第１光源１１から第１導光レンズ１４を経る光路と、各第２光源１２から第２導光レンズ１５を経る光路と、の間に設けられている。シェード１６は、幅方向に直交する面上において、前後方向に対する角度が各第１光源１１および各第２光源１２の各出射光軸Ｌｉよりも小さくされており、実施例１では各出射光軸Ｌｉが為す角度の１／２の角度の２２．５度とされている。このシェード１６は、ヒートシンク部材１３と投影レンズ１７とを組み合わせるレンズホルダに固定されることで、上記の位置関係が設定される。 As shown in FIGS. 1 and 2, the shade 16 is provided on the second light guide lens 15 and has a plate shape extending in the width direction. Therefore, the shade 16 is provided between the optical path from each of the first light sources 11 to pass through the first light guide lens 14 and the optical path from each of the second light sources 12 to pass through the second light guide lens 15. The shade 16 has an angle with respect to the front-rear direction smaller than each emission light axis Li of each first light source 11 and each second light source 12 on a plane orthogonal to the width direction. It is said to be 22.5 degrees, which is half the angle that Li makes. The shade 16 is fixed to a lens holder that combines the heat sink member 13 and the projection lens 17, so that the above positional relationship is set.

シェード１６は、前後方向の前側の先端縁１６ａが、上下方向での位置の異なる２つの水平エッジが傾斜エッジで繋ぎ合わされた形状とされている（図１参照）。シェード１６は、各第１光源１１から出射されて第１導光レンズ１４（その各第１レンズ導光部２１）により導かれた光Ｌ１の一部を先端縁１６ａで遮ることで、すれ違い用配光パターンＬＰの上縁に２つの水平カットオフラインを傾斜カットオフラインで繋ぎ合わせたカットオフラインＣＬ（図５参照）を形成する。なお、シェード１６は、先端縁１６ａでカットオフラインＣＬを形成するものであれば、その大きさは適宜設定すればよく、実施例１の構成に限定されない。 The shade 16 has a shape in which the front tip edge 16a in the front-rear direction is joined by two horizontal edges having different positions in the vertical direction at an inclined edge (see FIG. 1). The shade 16 is for passing by by blocking a part of the light L1 emitted from each of the first light sources 11 and guided by the first light guide lens 14 (each of the first lens light guide portions 21) by the tip edge 16a. A cut-off line CL (see FIG. 5) is formed by connecting two horizontal cut-off lines with an inclined cut-off line on the upper edge of the light distribution pattern LP. The size of the shade 16 may be appropriately set as long as it forms a cut-off line CL at the tip edge 16a, and is not limited to the configuration of the first embodiment.

シェード１６は、上下方向の上側の面が反射面１６ｂとされている。この反射面１６ｂは、第１導光レンズ１４により導かれた各第１光源１１からの光Ｌ１を反射することで、投影レンズ１７へと進行させる。このため、シェード１６は、各第１光源１１からの光Ｌ１の利用効率を高めることができる。加えて、シェード１６は、前後方向に対して各第１光源１１の各出射光軸Ｌｉが為す角度の１／２の大きさの伏角とされている。このため、シェード１６は、第１導光レンズ１４により導かれた第１光源１１からの出射光軸Ｌｉに沿う光Ｌ１を、投影レンズ１７のレンズ軸Ｌａに平行な方向に反射できる。また、シェード１６は、第１導光レンズ１４により導かれた第１光源１１からの他の光Ｌ１を、レンズ軸Ｌａと平行と近い方向で反射できる。これらのことから、シェード１６は、第１導光レンズ１４を経た第１光源１１からの光Ｌ１を、レンズ軸Ｌａと平行もしくはそれに近い方向で、そのレンズ軸Ｌａの近傍へと進行させることができる。 The upper surface of the shade 16 in the vertical direction is a reflective surface 16b. The reflecting surface 16b propagates to the projection lens 17 by reflecting the light L1 from each of the first light sources 11 guided by the first light guide lens 14. Therefore, the shade 16 can increase the utilization efficiency of the light L1 from each of the first light sources 11. In addition, the shade 16 has a dip angle that is halved of the angle formed by each emission light axis Li of each first light source 11 in the front-rear direction. Therefore, the shade 16 can reflect the light L1 along the emission optical axis Li from the first light source 11 guided by the first light guide lens 14 in a direction parallel to the lens axis La of the projection lens 17. Further, the shade 16 can reflect another light L1 from the first light source 11 guided by the first light guide lens 14 in a direction close to parallel to the lens axis La. From these facts, the shade 16 allows the light L1 from the first light source 11 passing through the first light guide lens 14 to travel in the direction parallel to or close to the lens axis La toward the vicinity of the lens axis La. can.

投影レンズ１７は、凸レンズとされており、実施例１では出射面１７ａが凸面とされるとともに入射面１７ｂが平坦面とされている。なお、投影レンズ１７は、全体として凸レンズとされていれば、出射面１７ａが平坦面でも凹面でもよく、入射面１７ｂが凸面でもよく凹面でもよく、実施例１の構成に限定されない。投影レンズ１７は、レンズホルダに支持される。レンズホルダは、基板１８に実装された各第１光源１１や各第２光源１２、第１導光レンズ１４、第２導光レンズ１５およびシェード１６に対して、投影レンズ１７を位置決めした状態で、ヒートシンク部材１３に組み付けられる。 The projection lens 17 is a convex lens, and in the first embodiment, the exit surface 17a is a convex surface and the incident surface 17b is a flat surface. As long as the projection lens 17 is a convex lens as a whole, the exit surface 17a may be a flat surface or a concave surface, and the incident surface 17b may be a convex surface or a concave surface, and is not limited to the configuration of the first embodiment. The projection lens 17 is supported by the lens holder. The lens holder is in a state where the projection lens 17 is positioned with respect to each of the first light source 11, each second light source 12, the first light guide lens 14, the second light guide lens 15, and the shade 16 mounted on the substrate 18. , Assembled to the heat sink member 13.

投影レンズ１７では、図２に示すように、下側に位置する下側レンズ部４１と、上側に位置する上側レンズ部４２と、を有する。両レンズ部（４１、４２）は、レンズ軸Ｌａから半径方向での断面における出射面１７ａの曲率がそれぞれ異なるものとされ、それぞれにおける焦点距離が異なるものとされる。下側レンズ部４１では、投影方向の後側の下側焦点Ｆｄが、レンズ軸Ｌａ上でシェード板１６の先端縁１６ａの近傍とされている。上側レンズ部４２では、投影方向の後側の上側焦点Ｆｕが、レンズ軸Ｌａ上で下側焦点Ｆｄよりも投影方向の前側に設定されている。投影レンズ１７は、下側レンズ部４１と上側レンズ部４２とを繋ぐ箇所において、下側レンズ部４１側の下側焦点Ｆｄから上側レンズ部４２側の上側焦点Ｆｕへと焦点距離を連続的に変化（所謂徐変）させている。 As shown in FIG. 2, the projection lens 17 has a lower lens portion 41 located on the lower side and an upper lens portion 42 located on the upper side. Both lens portions (41, 42) have different curvatures of the exit surface 17a in the cross section in the radial direction from the lens axis La, and have different focal lengths at each. In the lower lens portion 41, the lower focal point Fd on the rear side in the projection direction is set to be in the vicinity of the tip edge 16a of the shade plate 16 on the lens axis La. In the upper lens portion 42, the upper focal point Fu on the rear side in the projection direction is set on the lens axis La on the front side in the projection direction with respect to the lower focal point Fd. The projection lens 17 continuously increases the focal length from the lower focal length Fd on the lower lens portion 41 side to the upper focal length Fu on the upper lens portion 42 side at the position where the lower lens portion 41 and the upper lens portion 42 are connected. It is changing (so-called gradual change).

次に車両用灯具１０の点灯について説明する。車両用灯具１０は、灯室に設けられて、コネクタ接続部を介して基板１８に外部コネクタが接続される。車両用灯具１０は、外部コネクタおよびコネクタ接続部を介する点灯制御回路から基板１８に実装された各第１光源１１および各第２光源１２へと電力を供給することで、各第１光源１１および各第２光源１２を適宜点灯および消灯する。 Next, lighting of the vehicle lamp 10 will be described. The vehicle lighting fixture 10 is provided in the lighting chamber, and an external connector is connected to the substrate 18 via a connector connecting portion. The vehicle lighting fixture 10 supplies electric power to each of the first light sources 11 and each of the second light sources 12 mounted on the substrate 18 from the lighting control circuit via the external connector and the connector connection portion, so that the first light source 11 and each of the first light sources 11 and the second light source 12 are supplied with electric power. Each second light source 12 is turned on and off as appropriate.

車両用灯具１０は、図２に示すように、各第１光源１１を点灯させると、その各第１光源１１からの光Ｌ１が、第１導光レンズ１４の各第１導光入射面２２に入射して、その湾曲入射面２２ａを経た光Ｌ１が平行光とされ、環状入射面２２ｂを経た光Ｌ１が反射面２２ｃで反射されて、第１導光出射面２３から出射される。その光Ｌ１は、レンズ軸Ｌａ上でシェード１６の先端縁１６ａの近傍に設定した投影レンズ１７の下側レンズ部４１の下側焦点Ｆｄの近傍へと進行する。その光Ｌ１は、投影レンズ１７により投影されることで、図５に示すように、投影面上でレンズ軸Ｌａの位置（水平線）の近傍よりも下側において、水平方向に並ぶ７つの部分配光領域ｌｐを形成する。その７つの部分配光領域ｌｐは、一部を重ねつつ幅方向に並んで一体に形成されて、すれ違い用配光パターンＬＰを形成する。そのすれ違い用配光パターンＬＰは、各光Ｌ１の一部が先端縁１６ａで遮られて先端縁１６ａに沿った形状とされつつ投影レンズ１７へと進行し、その投影レンズ１７により投影されることで、上縁にカットオフラインＣＬが形成される。 As shown in FIG. 2, in the vehicle lighting tool 10, when each of the first light sources 11 is turned on, the light L1 from each of the first light sources 11 is emitted from each of the first light guide incident surfaces 22 of the first light guide lens 14. The light L1 that has passed through the curved incident surface 22a is regarded as parallel light, and the light L1 that has passed through the annular incident surface 22b is reflected by the reflecting surface 22c and emitted from the first light guide emitting surface 23. The light L1 travels to the vicinity of the lower focal point Fd of the lower lens portion 41 of the projection lens 17 set in the vicinity of the tip edge 16a of the shade 16 on the lens axis La. When the light L1 is projected by the projection lens 17, as shown in FIG. 5, the light L1 is divided into seven parts arranged in the horizontal direction below the vicinity of the position (horizontal line) of the lens axis La on the projection surface. It forms an optical region lp. The seven partial distribution light regions lp are integrally formed side by side in the width direction while partially overlapping each other to form a passing light distribution pattern LP. In the passing light distribution pattern LP, a part of each light L1 is blocked by the tip edge 16a and advances to the projection lens 17 while being shaped along the tip edge 16a, and is projected by the projection lens 17. Then, a cut-off line CL is formed on the upper edge.

また、車両用灯具１０は、図２に示すように、各第２光源１２を点灯させると、その各第２光源１２からの光Ｌ２が、第２導光入射面３４から第２導光レンズ１５の各第２レンズ導光部３１へと入射して、各第２レンズ導光部３１により導かれて、第２導光出射面３５から出射される。その光Ｌ２は、レンズ軸Ｌａ上で先端縁１６ａよりも前後方向の前側に設定した投影レンズ１７の上側レンズ部４２の上側焦点Ｆｕの近傍へと進行する。その光Ｌ２は、投影レンズ１７により投影されることで、図６に示すように、投影面上でレンズ軸Ｌａの位置（水平線）の近傍よりも上側において、水平方向に並ぶ１２個の部分配光領域ｈｐを形成する。その１２個の部分配光領域ｈｐは、一部を重ねつつ幅方向に並んで一体に形成されて、走行用配光パターンＨＰを形成する。 Further, as shown in FIG. 2, in the vehicle lighting tool 10, when each of the second light sources 12 is turned on, the light L2 from each of the second light sources 12 is emitted from the second light guide incident surface 34 to the second light guide lens. It is incident on each of the second light source light sources 31 of 15, guided by each second lens light source 31, and is emitted from the second light source exit surface 35. The light L2 travels to the vicinity of the upper focal point Fu of the upper lens portion 42 of the projection lens 17 set on the front side of the tip edge 16a in the front-rear direction on the lens axis La. When the light L2 is projected by the projection lens 17, as shown in FIG. 6, 12 parts are distributed in the horizontal direction above the vicinity of the position (horizontal line) of the lens axis La on the projection surface. The optical region hp is formed. The twelve partially distributed light regions hp are integrally formed side by side in the width direction while partially overlapping each other to form a traveling light distribution pattern HP.

実施例１の車両用灯具１０は、ＡＤＢ（Adaptive Driving Beam（配光可変型前照灯））としており、各第２光源１２を個別に点灯および消灯することで、１２個の部分配光領域ｈｐのうちの特定の方向の部分配光領域ｈｐを点灯および消灯できる。これにより、車両用灯具１０は、走行用配光パターンＨＰにおける任意の方向の部分的な配光制御を可能としている。 The vehicle lighting fixture 10 of the first embodiment is an ADB (Adaptive Driving Beam (variable light distribution type headlight)), and by turning on and off each second light source 12 individually, 12 partial distribution light regions The part distribution light region hp in a specific direction of the hp can be turned on and off. As a result, the vehicle lamp 10 enables partial light distribution control in an arbitrary direction in the traveling light distribution pattern HP.

以上の説明により、車両用灯具１０は、各第１光源１１を点灯することで、図５に示すように、カットオフラインＣＬを有するすれ違い用配光パターンＬＰを形成でき、すれ違い時の配光（所謂ロービーム）とすることができる。また、車両用灯具１０は、各第１光源１１に加えて各第２光源１２を点灯することで、図７に示すように、すれ違い用配光パターンＬＰの上方に重ねて走行用配光パターンＨＰを形成でき、走行時の配光（所謂ハイビーム）とすることができる。そして、車両用灯具１０は、上記したように、各第２光源１２を個別に点灯および消灯することで、走行用配光パターンＨＰにおける任意の部分配光領域ｈｐを個別に制御することができ、ＡＤＢの機能を実現させることもできる。 According to the above description, the vehicle lighting fixture 10 can form a passing light distribution pattern LP having a cut-off line CL as shown in FIG. 5 by turning on each of the first light sources 11, and the light distribution at the time of passing (light distribution at the time of passing). It can be a so-called low beam). Further, as shown in FIG. 7, the vehicle lighting tool 10 is superposed on the passing light distribution pattern LP by turning on each of the second light sources 12 in addition to the first light source 11, and the traveling light distribution pattern. The HP can be formed, and the light distribution during traveling (so-called high beam) can be obtained. Then, as described above, the vehicle lamp 10 can individually control the arbitrary part distribution light region hp in the traveling light distribution pattern HP by turning on and off each of the second light sources 12 individually. , ADB functions can also be realized.

次に、車両用灯具１０における作用について説明する。従来から車両用灯具では、各第１光源からの光ですれ違い用配光パターンを形成するとともに、各第２光源からの光で走行用配光パターンを形成するものが考えられている。その車両用灯具では、各第１光源からの光を、レンズ軸よりも上下方向の上側から下側レンズ部の下側焦点に進行させた後に投影レンズにより投影することで、すれ違い用配光パターンを形成する。また、その車両用灯具では、各第２光源からの光を、レンズ軸よりも上下方向の下側から上側レンズ部の上側焦点に進行させた後に投影レンズにより投影することで、走行用配光パターンを形成する。このため、その車両用灯具では、各第１光源と各第２光源とを、互いに出射した光が交差するように配置することとなる。このことから、その車両用灯具では、各第１光源と各第２光源とを同一の基板に設けることが困難である。 Next, the operation in the vehicle lamp 10 will be described. Conventionally, in a vehicle lamp, a light distribution pattern for passing is formed by light from each first light source, and a traveling light distribution pattern is formed by light from each second light source. In the vehicle lighting equipment, the light from each first light source is propagated from the upper side in the vertical direction with respect to the lens axis to the lower focal point of the lower lens portion, and then projected by the projection lens to form a light distribution pattern for passing. To form. Further, in the vehicle lamp, the light from each second light source is projected from the lower side in the vertical direction with respect to the lens axis to the upper focal point of the upper lens portion and then projected by the projection lens to distribute the light for traveling. Form a pattern. Therefore, in the vehicle lamp, the first light source and the second light source are arranged so that the light emitted from each other intersects with each other. For this reason, it is difficult to provide each first light source and each second light source on the same substrate in the vehicle lamp.

これに対して、車両用灯具１０は、各第１光源１１と各第２光源１２とを同一の基板１８に実装して、それぞれの出射光軸Ｌｉを平行としつつ前後方向に対して伏角で３０度から５０度としている。このため、車両用灯具１０は、各第１光源１１の出射光軸Ｌｉを下側レンズ部４１の下側焦点Ｆｄの方に向けることができ、第１導光レンズ１４により各第１光源１１からの光Ｌ１を下側焦点Ｆｄへと導くことを容易なものにできる。これにより、車両用灯具１０は、簡易な構成で各第１光源１１からの光Ｌ１を下側焦点Ｆｄへと導くことができるので、その光Ｌ１を下側焦点Ｆｄまで効率良く導くことができる。また、車両用灯具１０は、各第２光源１２の出射光軸Ｌｉが上側レンズ部４２の上側焦点Ｆｕに向く方向とは大きく異なるが、各第１光源１１よりも各第２光源１２を前後方向の後側に配置させることで、各第２光源１２から上側焦点Ｆｕまでの間隔を大きくできる。このため、車両用灯具１０は、第２導光レンズ１５における導光の自由度を確保でき、その第２導光レンズ１５により各第２光源１２からの光Ｌ２が進行する方向を変化させつつ、その光Ｌ２を上側焦点Ｆｕまで効率良く導くことができる。これにより、車両用灯具１０は、各第１光源１１および各第２光源１２を同一の基板１８に設けつつ、それらからの光Ｌ１、光Ｌ２を効率良く利用してすれ違い用配光パターンＬＰや走行用配光パターンＨＰを形成できる。 On the other hand, in the vehicle lamp 10, the first light source 11 and the second light source 12 are mounted on the same substrate 18, and the emission optical axes Li are parallel to each other and have a dip angle in the front-rear direction. It is set to 30 to 50 degrees. Therefore, the vehicle lamp 10 can direct the emission light axis Li of each first light source 11 toward the lower focal point Fd of the lower lens portion 41, and each first light source 11 is provided by the first light guide lens 14. It is possible to easily guide the light L1 from the light source to the lower focal point Fd. As a result, the vehicle lamp 10 can guide the light L1 from each first light source 11 to the lower focal point Fd with a simple configuration, so that the light L1 can be efficiently guided to the lower focal point Fd. .. Further, in the vehicle lamp 10, the direction in which the emission light axis Li of each second light source 12 faces the upper focal point Fu of the upper lens portion 42 is significantly different, but the second light source 12 is moved back and forth more than each first light source 11. By arranging it on the rear side in the direction, the distance from each second light source 12 to the upper focal point Fu can be increased. Therefore, the vehicle lamp 10 can secure the degree of freedom of the light guide in the second light guide lens 15, and the second light guide lens 15 changes the direction in which the light L2 from each of the second light sources 12 travels. , The light L2 can be efficiently guided to the upper focal point Fu. As a result, the vehicle lighting fixture 10 provides the first light source 11 and the second light source 12 on the same substrate 18, and efficiently utilizes the light L1 and the light L2 from them to provide a light distribution pattern LP for passing each other. A traveling light distribution pattern HP can be formed.

また、車両用灯具１０は、第１導光レンズ１４を経た各第１光源１１からの光Ｌ１の一部を先端縁１６ａで遮る構成とし、そのシェード１６の上側の面を反射面１６ｂとしている。このため、車両用灯具１０は、先端縁１６ａの近傍で遮った各第１光源１１からの光Ｌ１を、反射面１６ｂで反射して投影レンズ１７へと進行させることができ、各第１光源１１からの光Ｌ１の利用効率を高めることができる。加えて、車両用灯具１０は、前後方向に対して、各第１光源１１の出射光軸Ｌｉが為す角度の１／２の大きさの伏角として、シェード１６を設けている。このため、車両用灯具１０は、反射面１６ｂで反射した光Ｌ１の進行方向を前後方向と平行に近い状態（前後方向との傾斜が小さい状態）にでき、その状態で投影レンズ１７におけるレンズ軸Ｌａの近傍へと進行させることができる。これにより、車両用灯具１０は、反射面１６ｂで反射した光Ｌ１を、すれ違い用配光パターンＬＰにおける鉛直線と水平線とが交差する中央の近傍に進行させることができ、走行用配光パターンＨＰをより適切に形成しつつ各第１光源１１からの光Ｌ１の利用効率を高めることができる。 Further, the vehicle lamp 10 has a configuration in which a part of the light L1 from each first light source 11 passing through the first light guide lens 14 is blocked by the tip edge 16a, and the upper surface of the shade 16 is a reflecting surface 16b. .. Therefore, the vehicle lamp 10 can reflect the light L1 from each of the first light sources 11 blocked in the vicinity of the tip edge 16a by the reflecting surface 16b and proceed to the projection lens 17, and each of the first light sources. It is possible to increase the utilization efficiency of the light L1 from 11. In addition, the vehicle lamp 10 is provided with a shade 16 as a dip angle having a size of 1/2 of the angle formed by the emission light axis Li of each first light source 11 in the front-rear direction. Therefore, the vehicle lamp 10 can make the traveling direction of the light L1 reflected by the reflecting surface 16b close to parallel to the front-rear direction (a state in which the inclination with respect to the front-rear direction is small), and in that state, the lens axis of the projection lens 17 It can be advanced to the vicinity of La. As a result, the vehicle lamp 10 can advance the light L1 reflected by the reflecting surface 16b to the vicinity of the center where the vertical line and the horizontal line intersect in the passing light distribution pattern LP, and the traveling light distribution pattern HP. It is possible to improve the utilization efficiency of the light L1 from each of the first light sources 11 while forming the light L1 more appropriately.

さらに、車両用灯具１０は、７個の第１光源１１の幅方向での間隔を外側に向かうに連れて大きくして設けている。このため、車両用灯具１０は、投影面上において、鉛直線と水平線とが交差する中央の近傍を最も明るくしつつ水平線に沿わせるように広い範囲に亘り各部分配光領域ｌｐを形成できる。これにより、車両用灯具１０は、水平方向に十分に広げて隙間なく各部分配光領域ｌｐを並べて、すれ違い用配光パターンＬＰを形成できる。ここで、すれ違い用配光パターンＬＰは、レンズ軸Ｌａの近傍を最も明るくすることが求められるので、車両用灯具１０は、簡易な構成で適切にすれ違い用配光パターンＬＰを形成できる。加えて、車両用灯具１０は、第１導光レンズ１４の各第１レンズ導光部２１において、幅方向でレンズ軸Ｌａから離れるに従って直交面Ｏｐに対する第１導光出射面２３の傾斜角度を大きくしている。このため、車両用灯具１０は、シェード１６の先端縁１６ａの近傍で下側レンズ部４１の下側焦点Ｆｄを含む焦点面（像面）上の並ぶ位置に各光Ｌ１を集光でき、すれ違い用配光パターンＬＰを適切に形成できる。 Further, the vehicle lamp 10 is provided so that the distance between the seven first light sources 11 in the width direction increases toward the outside. Therefore, the vehicle lamp 10 can form the light distribution region lp over a wide range on the projection surface so as to be along the horizon while making the vicinity of the center where the vertical line and the horizon intersect the brightest. As a result, the vehicle lighting fixture 10 can be sufficiently expanded in the horizontal direction and the distributed light regions lp of each part are arranged without gaps to form a light distribution pattern LP for passing each other. Here, since the passing light distribution pattern LP is required to make the vicinity of the lens shaft La brightest, the vehicle lamp 10 can appropriately form the passing light distribution pattern LP with a simple configuration. In addition, the vehicle lamp 10 sets the inclination angle of the first light guide emitting surface 23 with respect to the orthogonal surface Op as the distance from the lens axis La in the width direction increases in each first lens light guide portion 21 of the first light guide lens 14. It's getting bigger. Therefore, the vehicle lamp 10 can collect each light L1 at a lined position on the focal plane (image plane) including the lower focal Fd of the lower lens portion 41 in the vicinity of the tip edge 16a of the shade 16 and pass each other. The light distribution pattern LP can be appropriately formed.

車両用灯具１０は、レンズ軸Ｌａ上において、相対的に、下側レンズ部４１の下側焦点Ｆｄを長い焦点距離Ｄｆとし、上側レンズ部４２の上側焦点Ｆｕを短い焦点距離Ｄｆとしている。そして、車両用灯具１０は、下側レンズ部４１の下側焦点Ｆｄをシェード１６の先端縁１６ａの近傍に設定している。このため、車両用灯具１０では、各第１光源１１から出射されて第１導光レンズ１４により導かれた光Ｌ１を、下側焦点Ｆｄを含む下側焦点面（像面）におけるシェード１６の先端縁１６ａよりも上側を通らせて投影レンズ１７に入射させることができる。このため、車両用灯具１０では、各第１光源１１からの光Ｌ１を、投影面上でカットオフラインＣＬよりも下側へと導くことができ、すれ違い用配光パターンＬＰを適切に形成できる。 In the vehicle lamp 10, the lower focal length Fd of the lower lens portion 41 is a long focal length Df and the upper focal length Fu of the upper lens portion 42 is a short focal length Df on the lens axis La. Then, the vehicle lamp 10 sets the lower focal point Fd of the lower lens portion 41 in the vicinity of the tip edge 16a of the shade 16. Therefore, in the vehicle lamp 10, the light L1 emitted from each of the first light sources 11 and guided by the first light guide lens 14 is directed by the shade 16 on the lower focal plane (image plane) including the lower focal Fd. It can be incident on the projection lens 17 by passing above the tip edge 16a. Therefore, in the vehicle lamp 10, the light L1 from each of the first light sources 11 can be guided below the cut-off line CL on the projection surface, and the light distribution pattern LP for passing can be appropriately formed.

また、車両用灯具１０では、レンズ軸Ｌａ上において、シェード１６の先端縁１６ａの近傍に設定した下側焦点Ｆｄよりも、上側レンズ部４２の上側焦点Ｆｕを投影レンズ１７側としている。このため、車両用灯具１０では、上側焦点Ｆｕの近傍においてシェード１６により各第２光源１２からの光Ｌ２が遮られることがないので、上側焦点Ｆｕを含む焦点面（像面）における上側焦点Ｆｕよりも下側に加えて、同じ焦点面における上側焦点Ｆｕよりも上側も通して、各第２光源１２からの光Ｌ２を投影レンズ１７へと進行させることができる。これにより、車両用灯具１０は、図６、図７に示すように、各第２光源１２からの光Ｌ２の一部がシェード１６の先端縁１６ａで遮られて、走行用配光パターンＨＰの下縁が先端縁１６ａに沿った形状にできるとともに、その下縁を投影面上でカットオフラインＣＬよりも下側に位置させることができる。よって、車両用灯具１０は、各第２光源１２からの光Ｌ２で形成するすれ違い用配光パターンＬＰを投影面上におけるカットオフラインＣＬよりも下方まで形成することでき、走行用配光パターンＨＰとの間に暗部が生じることを抑制できる。これにより、車両用灯具１０は、投影レンズ１７を段差のない良好な外観としつつ、すれ違い用配光パターンＬＰと走行用配光パターンＨＰとを適切に形成できる。 Further, in the vehicle lamp 10, the upper focal point Fu of the upper lens portion 42 is on the projection lens 17 side of the lower focal point Fd set in the vicinity of the tip edge 16a of the shade 16 on the lens axis La. Therefore, in the vehicle lighting equipment 10, since the light L2 from each of the second light sources 12 is not blocked by the shade 16 in the vicinity of the upper focal Fu, the upper focal Fu on the focal plane (image plane) including the upper focal Fu In addition to the lower side, the light L2 from each second light source 12 can be advanced to the projection lens 17 through the upper side of the upper focal point Fu on the same focal plane. As a result, as shown in FIGS. 6 and 7, a part of the light L2 from each of the second light sources 12 is blocked by the tip edge 16a of the shade 16, and the vehicle lighting tool 10 has a traveling light distribution pattern HP. The lower edge can be shaped along the tip edge 16a, and the lower edge can be positioned below the cut-off line CL on the projection surface. Therefore, the vehicle lamp 10 can form the passing light distribution pattern LP formed by the light L2 from each of the second light sources 12 below the cut-off line CL on the projection surface, and can be combined with the traveling light distribution pattern HP. It is possible to suppress the occurrence of dark areas between the two. As a result, the vehicle lamp 10 can appropriately form the light distribution pattern LP for passing and the light distribution pattern HP for traveling while giving the projection lens 17 a good appearance without steps.

実施例１の車両用灯具１０は、以下の各作用効果を得ることができる。 The vehicle lamp 10 of the first embodiment can obtain the following effects.

車両用灯具１０は、第１光源１１と第２光源１２とを、互いの出射光軸Ｌｉを平行としつつ前後方向に対して伏角として傾斜させており、前後方向で第１光源１１よりも投影レンズ１７から離れた位置に第２光源１２を設けている。このため、車両用灯具１０は、第１光源１１および第２光源１２を同一の基板１８に設けつつ、それらからの光Ｌ１、光Ｌ２で適切にすれ違い用配光パターンＬＰや走行用配光パターンＨＰを形成できる。 In the vehicle lamp 10, the first light source 11 and the second light source 12 are tilted as a dip angle with respect to the front-rear direction while the emission light axes Li are parallel to each other, and are projected more than the first light source 11 in the front-rear direction. A second light source 12 is provided at a position away from the lens 17. Therefore, in the vehicle lighting fixture 10, the first light source 11 and the second light source 12 are provided on the same substrate 18, and the light L1 and the light L2 from them are used to appropriately pass the light distribution pattern LP for passing and the light distribution pattern for traveling. HP can be formed.

車両用灯具１０は、第１光源１１と第２光源１２との出射光軸Ｌｉ、を前後方向に対して伏角で３０度から５０度としている。このため、車両用灯具１０は、同一の基板１８に設けた両光源（１１、１２）からの光Ｌ１、Ｌ２により両配光パターン（ＬＰ、ＨＰ）を適切に形成することを、容易なものにできる。すなわち、車両用灯具１０は、出射光軸Ｌｉを上記の角度範囲とすることで、第１導光レンズ１４や第２導光レンズ１５を容易な構成としつつ、それぞれが導いた光Ｌ１、Ｌ２を投影レンズ１７へと適切に導くことができる。 In the vehicle lamp 10, the emission optical axes Li of the first light source 11 and the second light source 12 are set to 30 to 50 degrees in dip angle with respect to the front-rear direction. Therefore, in the vehicle lamp 10, it is easy to appropriately form both light distribution patterns (LP, HP) by the lights L1 and L2 from both light sources (11, 12) provided on the same substrate 18. Can be done. That is, the vehicle lamp 10 has the light L1 and L2 guided by the light L1 and L2, respectively, while making the first light guide lens 14 and the second light guide lens 15 easy to configure by setting the emission light axis Li to the above angle range. Can be appropriately guided to the projection lens 17.

また、車両用灯具１０は、複数の第１レンズ導光部２１において、レンズ軸Ｌａから離れるに従って前後方向に直交する直交面Ｏｐに対する第１導光出射面２３の傾斜角度を大きくしている。このため、車両用灯具１０は、各第１光源１１の幅方向での間隔を上記の設定としても、各第１光源１１からの光Ｌ１をシェード１６の先端縁１６ａの近傍に適切に集光でき、すれ違い用配光パターンＬＰを適切に形成できる。 Further, in the vehicle lighting fixture 10, in the plurality of first lens light guide portions 21, the inclination angle of the first light guide emission surface 23 with respect to the orthogonal plane Op orthogonal to the front-rear direction as the distance from the lens axis La increases. Therefore, the vehicle lamp 10 appropriately collects the light L1 from each first light source 11 in the vicinity of the tip edge 16a of the shade 16 even if the distance between the first light sources 11 in the width direction is set as described above. It is possible to appropriately form a light distribution pattern LP for passing each other.

さらに、車両用灯具１０は、第１光源１１と第２光源１２との間に、すれ違い用配光パターンＬＰのカットオフラインＣＬを形成するシェード１６を設け、そのシェード１６を、前後方向に対して出射光軸Ｌｉが為す角度の１／２の大きさの伏角としている。このため、車両用灯具１０は、反射面１６ｂで反射した第１光源１１からの光Ｌ１を、走行用配光パターンＨＰを形成する領域における不測の位置に投影することを防止できる。 Further, the vehicle lamp 10 is provided with a shade 16 forming a cut-off line CL of the passing light distribution pattern LP between the first light source 11 and the second light source 12, and the shade 16 is set with respect to the front-rear direction. The dip angle is halved of the angle formed by the emission light axis Li. Therefore, the vehicle lamp 10 can prevent the light L1 from the first light source 11 reflected by the reflecting surface 16b from being projected to an unexpected position in the region forming the traveling light distribution pattern HP.

車両用灯具１０は、第１光源１１が、水平方向に複数が並べられて構成され、レンズ軸Ｌａから離れるに従って隣り合う第１光源１１同士の間隔を大きくしている。このため、車両用灯具１０は、レンズ軸Ｌａの近傍を最も明るくしつつ水平方向に十分に広げて隙間なく各部分配光領域ｌｐを並べることができ、すれ違い用配光パターンＬＰを適切に形成できる。 The vehicle lighting fixture 10 is configured such that a plurality of first light sources 11 are arranged in the horizontal direction, and the distance between adjacent first light sources 11 increases as the distance from the lens axis La increases. Therefore, the vehicle lighting fixture 10 can sufficiently widen the vicinity of the lens axis La in the horizontal direction and arrange the distributed light regions lp of each part without gaps, and can appropriately form the light distribution pattern LP for passing each other. ..

車両用灯具１０は、投影レンズ１７において、レンズ軸Ｌａ上で、上側レンズ部４２の上側焦点Ｆｕを下側レンズ部４１の下側焦点Ｆｄよりも焦点距離Ｄｆを短く設定している。このため、車両用灯具１０は、すれ違い用配光パターンＬＰの上端部と走行用配光パターンＨＰの下端部とが重なるように、それぞれを適切に形成できる。 In the projection lens 17, the vehicle lamp 10 sets the upper focal length Fu of the upper lens portion 42 to be shorter than the lower focal length Fd of the lower lens portion 41 on the lens axis La. Therefore, the vehicle lighting fixture 10 can be appropriately formed so that the upper end portion of the passing light distribution pattern LP and the lower end portion of the traveling light distribution pattern HP overlap each other.

したがって、本開示に係る車両用灯具としての実施例１の車両用灯具１０は、第１光源１１および第２光源１２を同一の基板１８に設けつつ、それらからの光Ｌ１、光Ｌ２で適切にすれ違い用配光パターンＬＰや走行用配光パターンＨＰを形成できる。 Therefore, in the vehicle lighting equipment 10 of the first embodiment as the vehicle lighting equipment according to the present disclosure, the first light source 11 and the second light source 12 are provided on the same substrate 18, and the light L1 and the light L2 from them are appropriately used. A light distribution pattern LP for passing and a light distribution pattern HP for traveling can be formed.

以上、本開示の車両用灯具を実施例１に基づき説明してきたが、具体的な構成については実施例１に限られるものではなく、特許請求の範囲の各請求項に係る発明の要旨を逸脱しない限り、設計の変更や追加等は許容される。 Although the vehicle lamps of the present disclosure have been described based on the first embodiment, the specific configuration is not limited to the first embodiment and deviates from the gist of the invention according to each claim of the claims. Unless otherwise, design changes and additions are allowed.

なお、実施例１では、走行用配光パターンＨＰにおける各部分配光領域ｈｐを個別に点消灯を制御することでＡＤＢの機能を実現できるものとしている。しかしながら、車両用灯具１０は、すれ違い用配光パターンＬＰを形成する第１光源１１と、走行用配光パターンＨＰを形成する第２光源１２と、を同一の基板１８に設けてそれぞれの出射光軸Ｌｉを互いに平行とするとともに、その各出射光軸Ｌｉを前後方向に対して伏角で３０度から５０度とするものであればよく、実施例１の構成に限定されない。 In the first embodiment, the function of the ADB can be realized by individually controlling the turning on and off of the light distribution region hp of each part in the traveling light distribution pattern HP. However, in the vehicle lamp 10, the first light source 11 that forms the passing light distribution pattern LP and the second light source 12 that forms the traveling light distribution pattern HP are provided on the same substrate 18, and the respective emitted lights are provided. It is not limited to the configuration of the first embodiment as long as the axes Li are parallel to each other and each emitted light axis Li has a dip angle of 30 to 50 degrees with respect to the front-rear direction.

また、実施例１では、第１レンズ導光部２１および第１光源１１を７個ずつ設けている。しかしながら、第１レンズ導光部２１および第１光源１１の数は、形成する部分配光領域ｌｐの数やそれらによるすれ違い用配光パターンＬＰの大きさや形状に応じて適宜設定すればよく、実施例１の構成に限定されない。 Further, in the first embodiment, seven first lens light guides 21 and seven first light sources 11 are provided. However, the number of the first lens light guide unit 21 and the first light source 11 may be appropriately set according to the number of the unit-distributed light regions lp to be formed and the size and shape of the light distribution pattern LP for passing by them. It is not limited to the configuration of Example 1.

さらに、実施例１では、第１光源１１と第２光源１２との互いの出射光軸Ｌｉを前後方向に対して伏角で３０度から５０度としている。しかしながら、第１光源１１と第２光源１２とを、互いの出射光軸Ｌｉを平行としつつ前後方向に対して伏角として傾斜させ、前後方向で第１光源１１よりも投影レンズ１７から離れた位置に第２光源１２を設けるものであれば、出射光軸Ｌｉの前後方向に対する角度は適宜設定すればよく、実施例１の構成に限定されない。 Further, in the first embodiment, the emission optical axes Li of the first light source 11 and the second light source 12 are set to 30 to 50 degrees in a dip angle with respect to the front-rear direction. However, the first light source 11 and the second light source 12 are tilted as a dip angle with respect to the front-rear direction while the emission optical axes Li are parallel to each other, and the position is farther from the projection lens 17 than the first light source 11 in the front-rear direction. If the second light source 12 is provided in the above, the angle of the emitted optical axis Li with respect to the front-rear direction may be appropriately set, and is not limited to the configuration of the first embodiment.

１０ 車両用灯具 １１ 第１光源 １２ 第２光源 １６ シェード １７ 投影レンズ １８ 基板 ２１ （レンズ導光部の一例としての）第１レンズ導光部 ２３ （導光出射面の一例としての）第１導光出射面 ４１ 下側レンズ部 ４２ 上側レンズ部 Ｃｌ カットオフライン Ｄｆ 焦点距離 Ｆｄ 下側焦点 Ｆｕ 上側焦点 ＨＰ 走行用配光パターン Ｌａ レンズ軸 Ｌｉ 出射光軸 ＬＰ すれ違い用配光パターン 10 Vehicle lighting equipment 11 1st light source 12 2nd light source 16 Shade 17 Projection lens 18 Substrate 21 (As an example of lens light guide unit) 1st lens light guide unit 23 (As an example of light guide emission surface) 1st guide Light emitting surface 41 Lower lens part 42 Upper lens part Cl Cut-off line Df Focus distance Fd Lower focus Fu Upper focus HP Traveling light distribution pattern La Lens axis Li Emitting light axis LP Passing light distribution pattern

Claims (6)

すれ違い用配光パターンを形成する光を出射する第１光源と、
走行用配光パターンを形成する光を出射する第２光源と、
前記第１光源からの光をレンズ軸が延びる前後方向の前側に投影して前記すれ違い用配光パターンを形成するとともに、前記第２光源からの光を前記前後方向の前側に投影して前記走行用配光パターンを形成する投影レンズと、
前記第１光源および前記第２光源が設けられる基板と、を備え、
前記第１光源と前記第２光源とは、互いの出射光軸が平行とされつつ、前記出射光軸が前記前後方向に対して伏角とされて傾斜されており、
前記第２光源は、前記前後方向で前記第１光源よりも前記投影レンズから離れた位置に設けられていることを特徴とする車両用灯具。 A first light source that emits light that forms a light distribution pattern for passing,
A second light source that emits light that forms a traveling light distribution pattern,
The light from the first light source is projected onto the front side in the front-rear direction in which the lens axis extends to form the passing light distribution pattern, and the light from the second light source is projected on the front side in the front-rear direction to form the traveling. A projection lens that forms a light distribution pattern for light
The first light source and the substrate on which the second light source is provided are provided.
The first light source and the second light source are inclined so that their emission light axes are parallel to each other and their emission light axes are dip angles with respect to the front-rear direction.
A vehicle lamp characterized in that the second light source is provided at a position farther from the projection lens than the first light source in the front-rear direction. 前記第１光源と前記第２光源とは、前記出射光軸が前記前後方向に対して、３０度から５０度の伏角とされていることを特徴とする請求項１に記載の車両用灯具。 The vehicle lamp according to claim 1, wherein the first light source and the second light source have an emission optical axis having a dip angle of 30 to 50 degrees with respect to the front-rear direction. 前記第１光源は、水平方向に複数が並べられて構成され、
複数の前記第１光源と前記投影レンズとの間には、複数の前記第１光源から出射された光を前記投影レンズに導くレンズ導光部が複数の前記第１光源に個別に対応して設けられ、
複数の前記レンズ導光部は、前記投影レンズに向けられた導光出射面を有し、前記レンズ軸から離れるに従って前記前後方向に直交する直交面に対する前記導光出射面の傾斜角度が大きくなることを特徴とする請求項１または請求項２に記載の車両用灯具。 The first light source is configured by arranging a plurality of the first light sources in the horizontal direction.
Between the plurality of the first light sources and the projection lens, a lens light guide unit that guides the light emitted from the plurality of the first light sources to the projection lens individually corresponds to the plurality of the first light sources. Provided,
The plurality of lens light guide portions have a light guide emission surface directed to the projection lens, and the inclination angle of the light guide emission surface with respect to an orthogonal surface orthogonal to the front-rear direction increases as the distance from the lens axis increases. The vehicle lighting device according to claim 1 or 2, wherein the lighting device is characterized by the above. 前記第１光源と前記第２光源との間には、前記第１光源からの光の一部を遮光して前記すれ違い用配光パターンにおけるカットオフラインを形成するシェードが設けられ、
前記シェードは、前記前後方向に対して前記出射光軸が為す角度の１／２の大きさの伏角とされていることを特徴とする請求項１から請求項３までのいずれか１項に記載の車両用灯具。 A shade is provided between the first light source and the second light source to block a part of the light from the first light source and form a cut-off line in the passing light distribution pattern.
6. Vehicle lighting equipment. 前記第１光源は、水平方向に複数が並べられて構成され、前記レンズ軸から離れるに従って隣り合う前記第１光源同士の間隔が大きくされていることを特徴とする請求項１から請求項４までのいずれか１項に記載の車両用灯具。 Claims 1 to 4, wherein a plurality of the first light sources are arranged side by side in the horizontal direction, and the distance between the adjacent first light sources is increased as the distance from the lens axis increases. The vehicle lighting equipment according to any one of the above. 前記投影レンズでは、前記レンズ軸を中心として下側レンズ部と上側レンズ部とが設定され、
前記下側レンズ部では、前記レンズ軸上に下側焦点が設定され、
前記上側レンズ部では、前記レンズ軸上に前記下側焦点よりも焦点距離の短い上側焦点が設定されていることを特徴とする請求項１から請求項５までのいずれか１項に記載の車両用灯具。 In the projection lens, a lower lens portion and an upper lens portion are set around the lens axis, and the lower lens portion and the upper lens portion are set.
In the lower lens portion, a lower focus is set on the lens axis, and the lower focus is set.
The vehicle according to any one of claims 1 to 5, wherein an upper focal length having a focal length shorter than that of the lower focal length is set on the lens axis in the upper lens portion. Lighting equipment.
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