JP5592183B2 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

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JP5592183B2
JP5592183B2 JP2010162008A JP2010162008A JP5592183B2 JP 5592183 B2 JP5592183 B2 JP 5592183B2 JP 2010162008 A JP2010162008 A JP 2010162008A JP 2010162008 A JP2010162008 A JP 2010162008A JP 5592183 B2 JP5592183 B2 JP 5592183B2
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light
vehicle
optical axis
reflector
focal point
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JP2012022988A (en
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秀忠 田中
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Priority to EP11173765.6A priority patent/EP2407710B1/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
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/692—Shields, i.e. screens not creating an image meant to be projected

Description

本発明は、光源からの光を前方に照射する車両用灯具に関し、特に先行車や対向車へグレアを与えることなく視認性を向上させる車両用灯具に関する。   The present invention relates to a vehicular lamp that irradiates light from a light source forward, and more particularly to a vehicular lamp that improves visibility without giving glare to a preceding vehicle or an oncoming vehicle.

近年の半導体発光素子（ＬＥＤ）の高輝度化に伴い、ＬＥＤを用いた車両用灯具が開発されている。このような車両用灯具において、特許文献１は、歩行者、先行車、対向車へグレアを与えないように、これらの歩行者、先行車、対向車の有無に応じて、車両前方や車両側方のみを照射する複数の異なる照射領域を形成することが可能な車両用灯具を提案している。特許文献１では、ＬＥＤの集光度が高くその照射範囲が狭いので、互いに異なる領域を照射する複数のＬＥＤを設け、各ＬＥＤの点消灯を制御することで複数の配光パターンを形成することを提案している。   With the recent increase in luminance of semiconductor light emitting devices (LEDs), vehicle lamps using LEDs have been developed. In such a vehicular lamp, Patent Document 1 discloses that the front side of the vehicle and the vehicle side according to the presence or absence of the pedestrian, the preceding vehicle, and the oncoming vehicle so as not to give glare to the pedestrian, the preceding vehicle, and the oncoming vehicle. The vehicle lamp which can form several different irradiation areas which irradiate only the direction is proposed. In Patent Document 1, since the concentration of LEDs is high and the irradiation range is narrow, a plurality of LEDs that irradiate different regions are provided, and a plurality of light distribution patterns are formed by controlling turning on / off of each LED. is suggesting.

特開２００７―１７９９６９号公報JP 2007-179969 A

特許文献１に記載の車両用灯具は、光束利用率を高めて照度を高めるため、３つのリフレクタを用いる構成を開示している。ところが、この構成では、左側照射パターン、右側照射パターン、中央照射パターンをそれぞれ形成するために互いに異なる方向を向いた３つのリフレクタが必要となるため、車両用灯具が大型化するという問題があった。このため、各々のリフレクタをオーバーラップするように互いの間隔を詰めて３つのリフレクタを一体化し、車両用灯具を小型化しようとすると、今度はリフレクタの反射面の面積が減少し、光束の利用率が低下してしまい、十分な照度が得られなかった。   The vehicular lamp described in Patent Document 1 discloses a configuration using three reflectors in order to increase the luminous flux utilization factor and increase the illuminance. However, in this configuration, there is a problem that the vehicle lamp becomes large because three reflectors facing different directions are required to form the left side illumination pattern, the right side illumination pattern, and the center illumination pattern, respectively. . For this reason, if the three reflectors are integrated so as to overlap each reflector so as to overlap each other to reduce the size of the vehicular lamp, the area of the reflecting surface of the reflector is reduced, and the use of the luminous flux is reduced. The rate decreased, and sufficient illuminance could not be obtained.

そこで本発明は、半導体発光素子を光源とする車両用灯具において、高い光束利用率を有する車両用灯具を提供することを目的とする。   Accordingly, an object of the present invention is to provide a vehicular lamp having a high luminous flux utilization factor in a vehicular lamp using a semiconductor light emitting element as a light source.

本発明によれば、上記目的を達成するために以下が提供される。
（１） 車両前後方向に延びる光軸上に配置された投影レンズと、
前記光軸を挟んで左右に配置された一対の半導体発光素子と、
前記光軸を中心として左右一対の集光反射面を有するリフレクタとを備えた車両用灯具であって、
一対の前記リフレクタの各々の前記集光反射面は、各々対応する前記半導体発光素子を第１焦点、前記投影レンズの後方焦点を第２焦点とする水平断面略楕円状であり、
一対の前記半導体発光素子は各々の照射軸が前記リフレクタの各々の前記集光反射面を向くように配置され、前記投影レンズを介して前記光軸に沿って前方側に光が照射されることを特徴とする車両用灯具。
（２） 前記リフレクタに左右の前記集光反射面の境界から前記光軸に沿って延びるように配置された固定遮光板と、
前記光軸上でかつ前記投影レンズの前記後方側焦点近傍において前記集光反射面から前記投影レンズへ入射する光の一部を遮光する遮光位置と、遮光しない位置とを切り替え可能な可動遮光板とを有し、
前記車両用灯具の前方中央部分に光を照射させない配光パターンを形成可能としたことを特徴とする（１）の車両用灯具。
（３） 前記リフレクタの前記集光反射面の前記光軸から離間した外側領域には、車両前方側方を照射するように光を反射する拡散反射面が形成されていることを特徴とする（１）又は（２）の車両用灯具。 According to the present invention, the following is provided to achieve the above object.
(1) a projection lens disposed on an optical axis extending in the vehicle longitudinal direction;
A pair of semiconductor light-emitting elements arranged on the left and right across the optical axis;
A vehicle lamp comprising a reflector having a pair of right and left condensing reflection surfaces with the optical axis as a center,
The condensing and reflecting surfaces of each of the pair of reflectors have a substantially elliptical horizontal cross section in which the corresponding semiconductor light emitting element is a first focal point and the rear focal point of the projection lens is a second focal point,
The pair of semiconductor light emitting elements are arranged so that each irradiation axis faces each of the condensing reflection surfaces of the reflector, and light is irradiated forward along the optical axis through the projection lens. A vehicular lamp characterized by the above.
(2) a fixed light-shielding plate disposed on the reflector so as to extend along the optical axis from a boundary between the right and left condensing reflection surfaces;
A movable light shielding plate capable of switching between a light shielding position for shielding a part of light incident on the projection lens from the condensing reflection surface and a position not to be shielded on the optical axis and in the vicinity of the rear focal point of the projection lens. And
(1) The vehicular lamp according to (1), wherein a light distribution pattern that does not irradiate light to a front center portion of the vehicular lamp can be formed.
(3) A diffuse reflection surface that reflects light so as to irradiate the front side of the vehicle is formed in an outer region spaced from the optical axis of the condensing reflection surface of the reflector. The vehicle lamp according to 1) or (2).

本発明に係る車両用灯具によれば、光軸を挟んで左右に配置された一対の半導体発光素子と、左右一対の反射面を有するリフレクタとを有し、一対の半導体発光素子は各々の照射軸がリフレクタの各々の反射面を向くように配置されているので、照射軸から放射状に広がる半導体発光素子からの光の大部分をリフレクタに入射させることができる。したがって、半導体発光素子から発光された光を効率よくリフレクタで反射させることができるので、高い光束利用率を有する車両用灯具を提供できる。   The vehicular lamp according to the present invention includes a pair of semiconductor light emitting elements disposed on the left and right sides of the optical axis and a reflector having a pair of left and right reflecting surfaces. Since the axis is arranged so as to face each reflecting surface of the reflector, most of the light from the semiconductor light emitting element that radiates from the irradiation axis can be incident on the reflector. Therefore, since the light emitted from the semiconductor light emitting element can be efficiently reflected by the reflector, a vehicle lamp having a high luminous flux utilization rate can be provided.

本発明の実施形態に係る車両用灯具の概略縦断面図である。It is a schematic longitudinal cross-sectional view of the vehicle lamp which concerns on embodiment of this invention. 可動遮光板が後方焦点近傍に位置しない状態の図１のＩＩ−ＩＩ線の断面図である。It is sectional drawing of the II-II line | wire of FIG. 1 in the state where a movable light-shielding plate is not located in the back focus vicinity. 可動遮光板が後方焦点近傍に位置する状態の図１のＩＩ−ＩＩ線の断面図である。It is sectional drawing of the II-II line | wire of FIG. 1 in the state where a movable light-shielding plate is located in the back focus vicinity. 本発明の実施形態に係る車両用灯具が形成するハイビーム用配光パターンを示す模式図である。It is a schematic diagram which shows the light distribution pattern for high beams which the vehicle lamp which concerns on embodiment of this invention forms. 本発明の実施形態に係る車両用灯具が形成する追走ハイビーム用配光パターンを示す模式図である。It is a schematic diagram which shows the light distribution pattern for follow-up high beams which the vehicle lamp which concerns on embodiment of this invention forms. 本発明の実施形態に係る車両用灯具が形成する第１片側ハイビーム用配光パターンを示す模式図である。It is a schematic diagram which shows the light distribution pattern for 1st one side high beams which the vehicle lamp which concerns on embodiment of this invention forms. 本発明の実施形態に係る車両用灯具が形成する第２片側ハイビーム用配光パターンを示す模式図である。It is a schematic diagram which shows the light distribution pattern for 2nd one side high beams which the vehicle lamp which concerns on embodiment of this invention forms.

以下、添付図面に基づいて本発明に係る車両用灯具の好適な実施形態を説明する。   Hereinafter, preferred embodiments of a vehicular lamp according to the present invention will be described with reference to the accompanying drawings.

＜車両用灯具の全体構造＞
図１は本実施形態に係る車両用灯具の縦断面図である。図１に示すように、本実施形態に係る車両用灯具１は、素通し状の透光カバー２と、ランプボディ３と、透光カバー２とランプボディ３とで形成される灯室内に収容される灯具ユニット１０を備えた車両用前照灯である。 <Overall structure of vehicle lamp>
FIG. 1 is a longitudinal sectional view of a vehicular lamp according to this embodiment. As shown in FIG. 1, the vehicular lamp 1 according to this embodiment is housed in a lamp chamber formed by a transparent light-transmitting cover 2, a lamp body 3, and the light-transmitting cover 2 and the lamp body 3. This is a vehicle headlamp equipped with a lamp unit 10.

車両用灯具１は、その光軸Ａｘが車両前後方向に延びており、灯具ユニット１０からの光を前方に照射してハイビーム用配光パターン、追走ハイビーム用配光パターン、第１片側ハイビーム用配光パターン、第２片側ハイビーム用配光パターンとを切り替え可能な灯具である。   The vehicular lamp 1 has an optical axis Ax extending in the vehicle front-rear direction. The vehicular lamp 1 irradiates light from the lamp unit 10 to the front to distribute a high beam distribution pattern, a follow-up high beam distribution pattern, and a first one-side high beam. The lamp is capable of switching between a light distribution pattern and a second one-side high beam light distribution pattern.

灯具ユニット１０は、図１に示すように、その光軸Ａｘ上に配置された凸レンズである投影レンズ１１と、投影レンズ１１の後方側焦点Ｆよりも後方に配置された左右一対のＬＥＤ（半導体発光素子）１２Ｌ，１２Ｒと、ＬＥＤ１２Ｌ，１２Ｒからの光を光軸Ａｘ寄りの前方に向けて反射させる左右一対の反射面２１Ｌ，２１Ｒを有するリフレクタ２０と、固定遮光板３１と可動遮光板３２とを有し反射光の一部を遮蔽することにより所定の配光パターンを形成するシェード部材３０とを備える。   As shown in FIG. 1, the lamp unit 10 includes a projection lens 11 that is a convex lens disposed on the optical axis Ax, and a pair of left and right LEDs (semiconductors) that are disposed behind the rear-side focal point F of the projection lens 11. (Light emitting elements) 12L, 12R, a reflector 20 having a pair of left and right reflecting surfaces 21L, 21R for reflecting light from the LEDs 12L, 12R toward the front near the optical axis Ax, a fixed light shielding plate 31, and a movable light shielding plate 32 And a shade member 30 that forms a predetermined light distribution pattern by shielding a part of the reflected light.

この灯具ユニット１０はベース５に取り付けられ、ベース５はフレーム７に固定されている。フレーム７の後方には放熱フィン等の放熱ユニット８が取り付けられ、ＬＥＤ１２Ｌ，１２Ｒに生じる熱を放熱している。フレーム７はエイミング機構９Ａ，レベリング機構９Ｂを介してランプボディ３に支持されており、灯具ユニット１０の光軸Ａｘはエイミング機構９Ａにより水平方向に対して０．５〜０．６°程度下向きの方向に延びるように調節されて固定され、また、レベリング機構９Ｂによってその光軸Ａｘを鉛直方向に調節可能にランプボディに取り付けられている。   The lamp unit 10 is attached to the base 5, and the base 5 is fixed to the frame 7. A heat radiating unit 8 such as a heat radiating fin is attached to the rear of the frame 7 to radiate heat generated in the LEDs 12L and 12R. The frame 7 is supported by the lamp body 3 via an aiming mechanism 9A and a leveling mechanism 9B, and the optical axis Ax of the lamp unit 10 is directed downward by about 0.5 to 0.6 ° with respect to the horizontal direction by the aiming mechanism 9A. It is adjusted and fixed so as to extend in the direction, and is attached to the lamp body so that its optical axis Ax can be adjusted in the vertical direction by the leveling mechanism 9B.

図２は図１のＩＩ−ＩＩ線の断面図である。図２を参照して、ＬＥＤ１２Ｌ，１２Ｒは、例えば１×４ｍｍ四方の長方形の発光面が基板上に形成された白色発光ダイオードである。一対のＬＥＤ１２Ｌ，１２Ｒは光軸Ａｘを挟んで車両の左右両側に配置され、各々の照射軸１２Ｌａ，１２Ｒａが光軸Ａｘ側を向いて互いに対向するように配置される。より正確には、ＬＥＤ１２Ｌ，１２Ｒは互いに対向した状態から、その照射軸１２Ｌａ，１２Ｒａがリフレクタ２０の反射面２１Ｌ，２１Ｒを向くように車両の後方に少し傾いて配置されている。   2 is a cross-sectional view taken along line II-II in FIG. Referring to FIG. 2, the LEDs 12L and 12R are white light emitting diodes each having a rectangular light emitting surface of 1 × 4 mm square formed on a substrate, for example. The pair of LEDs 12L and 12R are arranged on both the left and right sides of the vehicle with the optical axis Ax interposed therebetween, and are arranged so that the respective irradiation axes 12La and 12Ra face the optical axis Ax and face each other. More precisely, the LEDs 12L and 12R are arranged slightly inclined to the rear of the vehicle so that the irradiation axes 12La and 12Ra face the reflecting surfaces 21L and 21R of the reflector 20 from a state where they face each other.

リフレクタ２０は、光軸Ａｘを中心とする左右一対の反射面２１Ｌ，２１Ｒを有する。左右の反射面２１Ｌ，２１Ｒはアルミニウム蒸着等で形成された反射面であり、両者は互いに接続されて一体化されている。また、各々の反射面２１Ｌ，２１Ｒは光軸Ａｘ側の集光反射面２１Ｌａ，２１Ｒａと、集光反射面２１Ｌａ，２１Ｒａから連続して光軸Ａｘと反対側（離間する側）に形成された拡散反射面２１Ｌｂ，２１Ｒｂとを有する。   The reflector 20 has a pair of left and right reflecting surfaces 21L and 21R with the optical axis Ax as the center. The left and right reflecting surfaces 21L and 21R are reflecting surfaces formed by aluminum vapor deposition or the like, and both are connected and integrated. Each of the reflection surfaces 21L and 21R is formed on the opposite side (separated side) of the optical axis Ax from the condensing reflection surfaces 21La and 21Ra on the optical axis Ax side and continuously from the condensing reflection surfaces 21La and 21Ra. It has diffuse reflection surfaces 21Lb and 21Rb.

左右の集光反射面２１Ｌａ，２１Ｒａは略楕円球面状であり、その水平断面は、それぞれ第１焦点が左右のＬＥＤ１２Ｌ，１２Ｒの発光面に、第２焦点が投影レンズ１１の後方焦点Ｆに位置する楕円ＥＬ，ＥＲの一部であって、左右のＬＥＤ１２Ｌ，１２Ｒと向かい合うように配置されている。したがって、図２に示す光線α１，α２のように、第１焦点に位置する左右のＬＥＤ１２Ｌ，１２Ｒから発光された光は、それぞれ左右の集光反射面２１Ｌａ，２１Ｒａで反射されて第２焦点に位置する後方焦点Ｆを通過し、投影レンズ１１に入射されて光軸Ａｘと平行な光が車両前方に投射される。   The left and right condensing / reflecting surfaces 21La and 21Ra have a substantially elliptic spherical shape, and the horizontal cross sections thereof are such that the first focus is located on the light emitting surfaces of the left and right LEDs 12L and 12R, and the second focus is located on the rear focus F of the projection lens 11. The ellipses EL and ER are arranged so as to face the left and right LEDs 12L and 12R. Therefore, like the light rays α1 and α2 shown in FIG. 2, the light emitted from the left and right LEDs 12L and 12R located at the first focal point is reflected by the left and right condensing reflection surfaces 21La and 21Ra, respectively, to the second focal point. Light that passes through the rear focal point F and enters the projection lens 11 and is parallel to the optical axis Ax is projected forward of the vehicle.

左右の拡散反射面２１Ｌｂ，２１Ｒｂは、左右の集光反射面２１Ｌａ，２１Ｒａから外側（光軸Ａｘと反対側）に連続して形成された、車両の側方へ向かう拡散光を投射する反射面である。本実施形態では、図２に示す光線α３，α４のように、左側の拡散反射面２１Ｌｂは左側のＬＥＤ１２Ｌからの光を車両前方の右側へ反射し、右側の拡散反射面２１Ｒｂは右側のＬＥＤ１２Ｒからの光を車両前方の左側へ反射されて車両前方の右左へ拡散するように出射される。なお、この拡散反射面２１Ｌｂ，２１Ｒｂは、断面略楕円状、断面略放物状等の面で形成される。   The left and right diffuse reflection surfaces 21Lb and 21Rb are formed continuously from the left and right condensing reflection surfaces 21La and 21Ra to the outside (opposite side to the optical axis Ax) and project the diffused light toward the side of the vehicle. It is. In this embodiment, like the light rays α3 and α4 shown in FIG. 2, the left diffuse reflection surface 21Lb reflects the light from the left LED 12L to the right side in front of the vehicle, and the right diffuse reflection surface 21Rb from the right LED 12R. Is reflected to the left side in front of the vehicle and emitted so as to diffuse to the right and left in front of the vehicle. The diffuse reflection surfaces 21Lb and 21Rb are formed with surfaces having a substantially elliptical cross section or a substantially parabolic cross section.

このように本実施形態に係る車両用灯具１によれば、一対のＬＥＤ１２Ｌ，１２Ｒは各々の照射軸がリフレクタ２０の左右の反射面２１Ｌ，２１Ｒを向くように配置され、図１に示す側面視でよく理解されるように、ＬＥＤ１２Ｌ，１２Ｒを覆うように反射面２１Ｌ，２１Ｒが形成されている。したがって、放射状に広がるＬＥＤ１２Ｌ，１２Ｒからの光の大部分をリフレクタ２０で反射させることができ、光束の利用率を高めてより明るい車両用灯具１を実現できる。   As described above, according to the vehicular lamp 1 according to the present embodiment, the pair of LEDs 12L and 12R are arranged such that the respective irradiation axes face the left and right reflecting surfaces 21L and 21R of the reflector 20, and are viewed from the side as shown in FIG. As is well understood, the reflecting surfaces 21L and 21R are formed so as to cover the LEDs 12L and 12R. Therefore, most of the light from the LEDs 12L and 12R spreading radially can be reflected by the reflector 20, and the luminous efficiency of the luminous flux can be increased and the brighter vehicle lamp 1 can be realized.

＜シェード部材＞
本実施形態に係る車両用灯具１は更に、図１に示すように、固定遮光板３１と可動遮光板３２とを有するシェード部材３０を備える。このシェード部材３０の詳細を、図１及び図３を用いて説明する。図３は、図２において可動遮光板３２が後方焦点Ｆ近傍に位置する状態の図である。 <Shade member>
As shown in FIG. 1, the vehicular lamp 1 according to the present embodiment further includes a shade member 30 having a fixed light shielding plate 31 and a movable light shielding plate 32. Details of the shade member 30 will be described with reference to FIGS. 1 and 3. FIG. 3 is a diagram showing a state in which the movable light shielding plate 32 is located in the vicinity of the rear focal point F in FIG.

固定遮光板３１は、リフレクタ２０の左右の集光反射面２１Ｌａ，２１Ｒａの境界から光軸Ａｘに沿って延びるように配置された板状の遮光部材である。本実施形態では、集光反射面２１Ｌａ，２１Ｒａの境界から光軸Ａｘに沿って後方焦点Ｆの手前まで延びる遮光板である。   The fixed light-shielding plate 31 is a plate-like light-shielding member arranged so as to extend along the optical axis Ax from the boundary between the left and right condensing reflection surfaces 21La and 21Ra of the reflector 20. In the present embodiment, the light shielding plate extends from the boundary between the condensing reflection surfaces 21La and 21Ra to the front of the rear focal point F along the optical axis Ax.

固定遮光板３１は、可動遮光板３２が遮光位置に位置しない状態で、ＬＥＤ１２Ｌ，１２Ｒのいずれか一方を点灯させたときに、リフレクタ２０からの反射光の一部を遮り、垂直カットラインを形成する。すなわち、図２に示すように、ＬＥＤ１２Ｒ，１２Ｌから発せられ、集光反射面２１Ｒａ，２１Ｌａの光軸中心寄りの領域で反射された光α５，α６は固定遮光板３１で遮られて車両前方には出射されない。   The fixed light shielding plate 31 blocks a part of the reflected light from the reflector 20 when one of the LEDs 12L and 12R is turned on with the movable light shielding plate 32 not positioned at the light shielding position, thereby forming a vertical cut line. To do. That is, as shown in FIG. 2, the light α5 and α6 emitted from the LEDs 12R and 12L and reflected by the regions near the optical axis center of the condensing and reflecting surfaces 21Ra and 21La are blocked by the fixed light shielding plate 31 and forward of the vehicle. Is not emitted.

可動遮光板３２は、光軸Ａｘ上でかつ投影レンズ１１の後方焦点Ｆ近傍においてリフレクタ２０から投影レンズ１１へ入射する光の一部を遮光する遮光位置と、遮光しない位置とを切り替え可能に構成されている。また、可動遮光板３２はリフレクタ２０側に開口した断面略コ字状に形成されており、可動遮光板３２の左右両端には光軸Ａｘと平行に延びる延出部が形成されている。可動遮光板３２は延出部で後方焦点を囲うように形成されており、リフレクタ２０からの反射光が回り込んで車両前方へ投射されることを抑制している。   The movable light shielding plate 32 is configured to be able to switch between a light shielding position for shielding a part of the light incident on the projection lens 11 from the reflector 20 on the optical axis Ax and in the vicinity of the rear focal point F of the projection lens 11 and a position for not shielding the light. Has been. In addition, the movable light shielding plate 32 is formed in a substantially U-shaped cross-section that opens toward the reflector 20, and extending portions extending in parallel with the optical axis Ax are formed at both left and right ends of the movable light shielding plate 32. The movable light shielding plate 32 is formed so as to surround the rear focal point at the extending portion, and suppresses that the reflected light from the reflector 20 wraps around and is projected to the front of the vehicle.

図１を参照して、可動遮光板３２は通常時は後方焦点Ｆから離間したベース５側に位置し、必要に応じてアクチュエータ３３により後方焦点Ｆ近傍の光軸Ａｘ側に移動され、その位置を切り替え可能である。可動遮光板３２が後方焦点Ｆから離れたベース５側に位置する状態では、可動遮光板３２はリフレクタ２０で反射されて投影レンズ１１に入射する光を遮ることはない。   Referring to FIG. 1, the movable light shielding plate 32 is normally positioned on the base 5 side that is separated from the rear focal point F, and is moved to the optical axis Ax side near the rear focal point F by the actuator 33 as necessary. Can be switched. In a state where the movable light shielding plate 32 is located on the base 5 side away from the rear focal point F, the movable light shielding plate 32 does not block the light that is reflected by the reflector 20 and incident on the projection lens 11.

可動遮光板３２が後方焦点Ｆから離れたベース５側に位置する状態からアクチュエータ３３によって後方焦点Ｆ近傍の光軸Ａｘ側に移動すると、図３に示すように可動遮光板３２が光軸Ａｘ上の後方焦点Ｆ近傍に位置される。リフレクタ２０の集光反射面２１Ｌａ，２１Ｒａで反射された光は後方焦点Ｆ近傍を通過するので、この状態では、左右の集光反射面２１Ｌａ，２１Ｒａからの反射光の一部が可動遮光板３２で遮られる。したがって、可動遮光板３２が後方焦点Ｆ近傍に位置すると、車両前方の中央を照射する光が遮られることになる。なお、アクチュエータ３０には送りネジ機構とこれを駆動するモータとを備えたアクチュエータ等、公知のアクチュエータを用いることができる。   When the movable light shielding plate 32 is moved to the optical axis Ax side in the vicinity of the rear focal point F from the state where the movable light shielding plate 32 is located on the base 5 side away from the rear focal point F, the movable light shielding plate 32 moves on the optical axis Ax as shown in FIG. Is located in the vicinity of the rear focal point F. Since the light reflected by the condensing reflection surfaces 21La and 21Ra of the reflector 20 passes near the rear focal point F, in this state, a part of the reflected light from the left and right condensing reflection surfaces 21La and 21Ra is part of the movable light shielding plate 32. Is blocked. Therefore, when the movable light shielding plate 32 is positioned in the vicinity of the rear focal point F, the light that irradiates the center in front of the vehicle is blocked. The actuator 30 may be a known actuator such as an actuator having a feed screw mechanism and a motor that drives the feed screw mechanism.

なお、可動遮光板３２の両側面に追加反射面３２ａを形成してもよい。リフレクタ２０に反射されず、ＬＥＤ１２Ｌ，１２Ｒから直接車両前方に向かう光の一部をこの追加反射面３２ａで反射させて投影レンズ１１を介して車両前方に投射することができるため、追加反射面３２ａを形成することで光利用率が高まる。   Note that additional reflection surfaces 32 a may be formed on both side surfaces of the movable light shielding plate 32. Since a part of the light that is not reflected by the reflector 20 but goes directly to the front of the vehicle from the LEDs 12L and 12R can be reflected by the additional reflection surface 32a and projected to the front of the vehicle through the projection lens 11, the additional reflection surface 32a. The light utilization rate is increased by forming.

＜配光パターン＞
次に、本実施形態の車両用灯具１が形成することのできる配光パターン（ハイビーム用配光パターン、第１・第２片側ハイビーム用配光パターン、追走ハイビーム用配光パターン）について、図４〜７を用いて説明する。なお、図４〜７は、車両用灯具１の照射光により、２５ｍ前方に位置する仮想鉛直スクリーン上に形成される配光パターンを透視的に示す図である。なお図中、Ｖ―Ｖは垂直方向、Ｈ−Ｈは水平方向を示す。 <Light distribution pattern>
Next, the light distribution pattern (high beam light distribution pattern, first and second one-side high beam light distribution pattern, follow-up high beam light distribution pattern) that can be formed by the vehicular lamp 1 of the present embodiment is shown in FIG. This will be described using 4-7. 4 to 7 are perspective views showing light distribution patterns formed on a virtual vertical screen located 25 m ahead by the irradiation light of the vehicular lamp 1. In the figure, VV indicates the vertical direction and HH indicates the horizontal direction.

図４は、車両が通常走行する際の車両前方の広い領域を照らしたい場合に有効なハイビーム用配光パターンを示している。このハイビーム用配光パターンは、図２に示すように左右両方のＬＥＤ１２Ｌ，１２Ｒを点灯させ、かつ、リフレクタ２０からの反射光を遮光しないようにシェード部材３０の可動遮光板３２をベース５側に位置させることにより形成できる。車両前方の中央には、左右の集光反射面２１Ｌａ，２１Ｒａからの反射光α１，α２が投射されて車両前方の中央に照射領域Ａ１，Ａ２が形成され、車両前方の左右の側方には拡散反射面２１Ｌｂ，２１Ｒｂからの反射光α３，α４が投射されて車両前方の左側と右側にそれぞれ照射領域Ａ３，Ａ４が形成される。このようにハイビーム用配光パターンでは、これらの照射領域Ａ１〜Ａ４が形成されて車両前方の広い領域が照らされる。   FIG. 4 shows a high-beam light distribution pattern that is effective when it is desired to illuminate a wide area in front of the vehicle when the vehicle normally travels. In this high beam light distribution pattern, as shown in FIG. 2, the left and right LEDs 12L and 12R are turned on, and the movable light shielding plate 32 of the shade member 30 is placed on the base 5 side so as not to shield the reflected light from the reflector 20. It can be formed by positioning. Reflected light α1, α2 from the left and right condensing reflection surfaces 21La, 21Ra is projected at the center in front of the vehicle to form irradiation areas A1, A2 at the center in front of the vehicle. Reflected lights α3 and α4 from the diffuse reflection surfaces 21Lb and 21Rb are projected to form irradiation areas A3 and A4 on the left and right sides in front of the vehicle, respectively. Thus, in the high beam light distribution pattern, these irradiation areas A1 to A4 are formed to illuminate a wide area in front of the vehicle.

図５は、車両前方に先行車が走行している場合に有効な追走ハイビーム用配光パターンである。この追走ハイビーム用配光パターンは、図３に示すように、左右両方のＬＥＤ１２Ｌ，１２Ｒを点灯させ、かつ、シェード部材３０の可動遮光板３２を後方焦点Ｆ近傍に位置させることにより実現できる。   FIG. 5 shows a light distribution pattern for a follow-up high beam that is effective when a preceding vehicle is traveling ahead of the vehicle. This follow-up high beam light distribution pattern can be realized by turning on both the left and right LEDs 12L, 12R and positioning the movable light shielding plate 32 of the shade member 30 in the vicinity of the rear focal point F as shown in FIG.

具体的には、図３に示すように、左右のＬＥＤ１２Ｌ，１２Ｒから発光され左右の集光反射面２１Ｌａ，２１Ｒａで反射された光の一部は後方焦点Ｆ近傍に位置する可動遮光板３２によって遮られることによって、車両前方の中央部分が照射されない照射領域Ａ１ａ，Ａ２ａが形成される。また、左右のＬＥＤ１２Ｌ，１２Ｒから発光され左右の拡散反射面２１Ｌｂ，２１Ｒｂでそれぞれ右左へ反射された光α３，α４は可動遮蔽板３２で遮られることなく投射されて車両前方の左右側に照射領域Ａ３，Ａ４が形成される。   Specifically, as shown in FIG. 3, part of the light emitted from the left and right LEDs 12L and 12R and reflected by the left and right condensing reflection surfaces 21La and 21Ra is caused by a movable light shielding plate 32 positioned in the vicinity of the rear focal point F. By being blocked, irradiation areas A1a and A2a are formed in which the central portion in front of the vehicle is not irradiated. Lights α3 and α4 emitted from the left and right LEDs 12L and 12R and reflected to the right and left by the left and right diffuse reflection surfaces 21Lb and 21Rb are projected without being blocked by the movable shielding plate 32 and irradiated to the left and right sides in front of the vehicle. A3 and A4 are formed.

したがって、車両前方には図５に示すように、照射領域Ａ１ａ，Ａ２ａ，Ａ３，Ａ４によって車両前方の中央のみが照射されない追走ハイビーム用配光パターンが形成される。この追走ハイビーム用配光パターンによれば、車両前方の中央を走行する先行車にグレアを与えることなく自車の視認性を向上させることができる。   Therefore, as shown in FIG. 5, a follow-up high beam light distribution pattern in which only the center in front of the vehicle is not irradiated is formed by the irradiation areas A1a, A2a, A3, and A4. According to this follow-up high beam light distribution pattern, the visibility of the host vehicle can be improved without giving glare to the preceding vehicle running in the center in front of the vehicle.

図６は、車両前方に先行車が走行しており、かつ、車両前方の右側を対向車が通過する際に有効な第１片側ハイビーム用配光パターンを示している。この第１片側ハイビーム用配光パターンは、図３に示すようにシェード部材３０の可動遮光板３２を後方焦点Ｆ近傍に位置させ、かつ、左側のＬＥＤ１２Ｌを点灯させずに右側のＬＥＤ１２Ｒのみを点灯させることにより実現できる。   FIG. 6 shows a first one-side high beam light distribution pattern that is effective when a preceding vehicle is traveling in front of the vehicle and an oncoming vehicle passes the right side in front of the vehicle. In this first one-side high beam distribution pattern, as shown in FIG. 3, the movable light shielding plate 32 of the shade member 30 is positioned in the vicinity of the rear focal point F, and only the right LED 12R is lit without lighting the left LED 12L. This can be realized.

具体的には、図３を参照して、右側のＬＥＤ１２Ｒから発光され右側の集光反射面２１Ｒａで反射された光の一部は後方焦点Ｆ近傍に位置する可動遮光板３２によって遮られ、車両前方の中央へ投射される光の一部が遮られて、車両前方の中央部分が照射されない照射領域Ａ１ｂが形成される。また、右側のＬＥＤ１２Ｒから発光され右側の拡散反射面２１Ｒｂで反射された光α４は遮られることなく投射されて、車両前方の左側の照射領域Ａ４が形成される。   Specifically, referring to FIG. 3, a part of the light emitted from the right LED 12R and reflected by the right light collecting / reflecting surface 21Ra is blocked by the movable light shielding plate 32 located in the vicinity of the rear focal point F. A part of the light projected to the front center is blocked, and an irradiation area A1b is formed in which the center part in front of the vehicle is not irradiated. Further, the light α4 emitted from the right LED 12R and reflected by the right diffuse reflection surface 21Rb is projected without being blocked, and the left irradiation area A4 in front of the vehicle is formed.

したがって、車両前方には、照射領域Ａ１ｂ，Ａ４により、図６に示すように車両前方の左側のみが照らされるような第１片側ハイビーム用配光パターンが形成される。この第１片側ハイビーム用配光パターンによれば、車両前方の先行車及び車両前方の右側を通過する対向車にグレアを与えることなく自車の前方視認性を向上させることができる。   Accordingly, a first one-side high beam light distribution pattern is formed in front of the vehicle by the irradiation areas A1b and A4 so that only the left side in front of the vehicle is illuminated as shown in FIG. According to this first one-side high beam light distribution pattern, it is possible to improve the forward visibility of the host vehicle without giving glare to the preceding vehicle ahead of the vehicle and the oncoming vehicle passing the right side of the vehicle front.

図７は、車両前方の右側を対向車が通過し、車両前方に先行車が走行していない時に有効な第２片側ハイビーム用配光パターンを示している。この第２片側ハイビーム用配光パターンは、図２に示すようにシェード部材３０の可動遮光板３２を遮光位置に位置させない状態で、右側のＬＥＤ１２Ｒのみを点灯させることにより実現できる。   FIG. 7 shows a second one-side high beam light distribution pattern that is effective when the oncoming vehicle passes through the right side in front of the vehicle and the preceding vehicle is not traveling in front of the vehicle. This second one-side high beam light distribution pattern can be realized by lighting only the right LED 12R in a state where the movable light shielding plate 32 of the shade member 30 is not positioned at the light shielding position as shown in FIG.

具体的には、図２を参照して、右側のＬＥＤ１２Ｒを点灯させ、かつ、リフレクタ２０からの反射光を遮光しないようにシェード部材３０の可動遮光板３２をベース５側に位置させる。車両前方の中央には、右側の集光反射面２１Ｒａからの反射光α１が投射されて車両前方の中央に照射領域Ａ１が形成され、車両前方の左側には拡散反射面２１Ｒｂからの反射光α４が投射されて車両前方の左側に照射領域Ａ４が形成される。このとき、固定遮光板３１は集光反射面２１Ｒａ，２１Ｌａの光軸中心寄りの領域で反射された光を遮るので、第２片側ハイビーム用配光パターンには図７に示す垂直カットオフラインＶＣＬが形成されている。   Specifically, referring to FIG. 2, the right LED 12R is turned on, and the movable light shielding plate 32 of the shade member 30 is positioned on the base 5 side so as not to shield the reflected light from the reflector 20. Reflected light α1 from the right light collecting / reflecting surface 21Ra is projected at the center in front of the vehicle to form an irradiation area A1 at the center in front of the vehicle, and reflected light α4 from the diffuse reflecting surface 21Rb is formed at the left in front of the vehicle. Is projected to form an irradiation area A4 on the left side in front of the vehicle. At this time, the fixed light shielding plate 31 blocks the light reflected in the region near the center of the optical axis of the condensing / reflecting surfaces 21Ra and 21La. Therefore, the vertical cut-off line VCL shown in FIG. Is formed.

したがって、車両前方には、照射領域Ａ１，Ａ４により、図７に示すように車両前方の中央から左側の広い領域が照らされる第２片側ハイビーム用配光パターンが形成される。この第２片側ハイビーム用配光パターンによれば、車両前方の右側を通過する対向車にグレアを与えることなく自車の前方視認性を向上させることができる。   Therefore, a second one-side high-beam light distribution pattern is formed in front of the vehicle by the irradiation areas A1 and A4, as shown in FIG. According to this second one-side high-beam light distribution pattern, it is possible to improve the forward visibility of the host vehicle without giving glare to the oncoming vehicle passing the right side in front of the vehicle.

以上説明したように、本実施形態に係る車両用灯具１によれば、一対のＬＥＤ１２Ｌ，Ｒを各々の照射軸がリフレクタ２０の左右の反射面２１Ｌ，２１Ｒを向くように配置したことによって光束の利用率を高め、かつ、固定遮光板３１と可動遮光板３２とを備えたシェード部材３０によって複数の配光パターンを形成できるように構成したことで、左右の反射面が一体化された小型リフレクタを備えた車両用灯具でありながら、照度の高い複数の配光パターンを形成できる車両用灯具１を実現できる。   As described above, according to the vehicular lamp 1 according to the present embodiment, the pair of LEDs 12L and R are arranged so that the respective irradiation axes face the left and right reflecting surfaces 21L and 21R of the reflector 20, so A small reflector in which the left and right reflecting surfaces are integrated by increasing the utilization factor and forming a plurality of light distribution patterns by the shade member 30 including the fixed light shielding plate 31 and the movable light shielding plate 32. The vehicular lamp 1 that can form a plurality of light distribution patterns with high illuminance can be realized.

なお、以上の実施形態では、左右の拡散反射面２１Ｌｂ，２１Ｒｂは左右のＬＥＤ１２Ｌ，１２Ｒから入射した光をそれぞれ反対の方向へ反射する面として説明したが、それぞれの拡散反射面２１Ｌｂ，２１Ｒｂが左右の両方の方向へ反射する面としてもよい。このように構成すれば、より広い範囲を均一に照射する配光パターンを形成することができる。   In the above embodiment, the left and right diffuse reflection surfaces 21Lb and 21Rb are described as surfaces that reflect light incident from the left and right LEDs 12L and 12R in opposite directions, but the respective diffuse reflection surfaces 21Lb and 21Rb are left and right. The surface may be reflected in both directions. If comprised in this way, the light distribution pattern which irradiates uniformly a wider range can be formed.

１ 車両用灯具、２ 透光カバー、３ ランプボディ、５ ベース、１０ 灯具ユニット、１１ 投影レンズ、１２Ｌ，１２Ｒ ＬＥＤ（半導体発光素子）、２０ リフレクタ、２１Ｌａ，２１Ｒａ 集光反射面、２１Ｌｂ，２１Ｒｂ 拡散反射面、３０ シェード部材、３１ 固定遮光板、３２ 可動遮光板 DESCRIPTION OF SYMBOLS 1 Vehicle lamp, 2 Translucent cover, 3 Lamp body, 5 Base, 10 Lamp unit, 11 Projection lens, 12L, 12R LED (semiconductor light emitting element), 20 Reflector, 21La, 21Ra Condensing reflective surface, 21Lb, 21Rb Diffusion Reflective surface, 30 shade member, 31 fixed light shielding plate, 32 movable light shielding plate

Claims (2)

車両前後方向に延びる光軸上に配置された投影レンズと、
前記光軸を挟んで左右に配置された一対の半導体発光素子と、
前記光軸を中心として左右一対の集光反射面を有するリフレクタとを備えた車両用灯具であって、
一対の前記リフレクタの各々の前記集光反射面は、各々対応する前記半導体発光素子を第１焦点、前記投影レンズの後方焦点を第２焦点とする水平断面略楕円状であり、
一対の前記半導体発光素子は各々の照射軸が前記リフレクタの各々の前記集光反射面を向くように配置され、前記投影レンズを介して前記光軸に沿って前方側に光が照射され、
前記リフレクタに左右の前記集光反射面の境界から前記光軸に沿って延びるように配置された固定遮光板と、
前記光軸上でかつ前記投影レンズの前記後方側焦点近傍において前記集光反射面から前記投影レンズへ入射する光の一部を遮光する遮光位置と、遮光しない位置とを切り替え可能な可動遮光板とを有し、
前記車両用灯具の前方中央部分に光を照射させない配光パターンを形成可能としたことを特徴とする車両用灯具。 A projection lens disposed on an optical axis extending in the vehicle longitudinal direction;
A pair of semiconductor light-emitting elements arranged on the left and right across the optical axis;
A vehicle lamp comprising a reflector having a pair of right and left condensing reflection surfaces with the optical axis as a center,
The condensing and reflecting surfaces of each of the pair of reflectors have a substantially elliptical horizontal cross section in which the corresponding semiconductor light emitting element is a first focal point and the rear focal point of the projection lens is a second focal point,
The pair of semiconductor light emitting elements are arranged so that each irradiation axis faces each of the light reflecting surfaces of the reflector, and light is irradiated to the front side along the optical axis through the projection lens ,
A fixed light-shielding plate disposed on the reflector so as to extend along the optical axis from a boundary between the right and left condensing reflection surfaces;
A movable light shielding plate capable of switching between a light shielding position for shielding a part of light incident on the projection lens from the condensing reflection surface and a position not to be shielded on the optical axis and in the vicinity of the rear focal point of the projection lens. And
A vehicular lamp, wherein a light distribution pattern that does not irradiate light to a front center portion of the vehicular lamp can be formed . 前記リフレクタの前記集光反射面の前記光軸から離間した外側領域には、車両前方側方を照射するように光を反射する拡散反射面が形成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 outer region spaced from the optical axis of the focusing reflective surface of the reflector, to claim 1, characterized in that diffuse reflecting surface for reflecting the light to illuminate the vehicle front side is formed The vehicle lamp as described.
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