JP4272974B2 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

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JP4272974B2
JP4272974B2 JP2003399754A JP2003399754A JP4272974B2 JP 4272974 B2 JP4272974 B2 JP 4272974B2 JP 2003399754 A JP2003399754 A JP 2003399754A JP 2003399754 A JP2003399754 A JP 2003399754A JP 4272974 B2 JP4272974 B2 JP 4272974B2
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reflecting surface
light
projection lens
light source
light distribution
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JP2005166282A (en
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真 金田
伸一 小嶋
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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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
    • F21S41/60—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
    • F21S41/695—Screens rotating around a vertical axis
    • 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
    • F21S41/338—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector having surface portions added to its general concavity
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、車両用灯具に関するものであり、詳細にはヘッドライト、フォグライトなど照明用の車両用灯具において、すれ違い配光と走行配光、或いは、直線走行用配光と曲路走行用配光など、目的に応じて配光形状を変化させることを可能とする車両用灯具の構成に係るものである。   The present invention relates to a vehicular lamp, and in particular, in a vehicular lamp for lighting such as a headlight and a fog light, a passing light distribution and a traveling light distribution, or a straight traveling light distribution and a curved road distribution. The present invention relates to a configuration of a vehicular lamp that makes it possible to change a light distribution shape according to a purpose such as light.

従来の可変配光型としたヘッドライトの構成の例としては、ハロゲン電球など光源と、この光源を焦点とする回転放物面など放物面系反射面とで構成されるものがあり、前記放物面系反射面を例えば上下方向で２分割し、その一方、例えば上方に位置するものを、光源を通る垂直線、即ち、焦点を通る垂直線を軸として回動可能に構成して可動反射面とする。尚、このときに、他の一方はハウジングなどに固定し、固定反射面としておく。   As an example of the configuration of a conventional headlight having a variable light distribution type, there is one configured by a light source such as a halogen bulb and a paraboloidal reflecting surface such as a rotating paraboloid focusing on the light source. The paraboloidal reflecting surface is divided into two parts, for example, in the vertical direction, while the one located above, for example, is movable by being configured to be rotatable about a vertical line passing through the light source, that is, a vertical line passing through the focal point. Let it be a reflective surface. At this time, the other one is fixed to a housing or the like and is set as a fixed reflecting surface.

そして、前記可動反射面の側を例えばハンドルの操作に伴い回動するものとしておけば、峠道など屈曲が激しく、且つ、照明も充分でない道路を進行する際には、車両の進行方向を照射できるものとなり、歩行者、或いは、障害物の発見などが早期に行えるものとして、安全性の向上が図れるものとなる。
特開２００３−１４１９１１号公報 If the movable reflecting surface is rotated with the operation of the steering wheel, for example, when traveling on a road that is severely bent and has insufficient lighting, the traveling direction of the vehicle is irradiated. It is possible to improve the safety as a pedestrian or an obstacle that can be detected at an early stage.
JP 2003-141911 A

しかしながら、上記した従来の可変配光の構成では、すれ違い配光などとして形成されていた配光形状の一部を回動させて必要方向を照射するものであるので、配光形状が崩れるものとなる。即ち、左側通行が規定されている国におけるすれ違い配光の形状は、左路側帯にある交通標識などを読み取るために、左前方に向けては適量の上向き光を生じるものとされている。   However, in the conventional variable light distribution configuration described above, a part of the light distribution shape formed as a passing light distribution is rotated to irradiate the necessary direction, so that the light distribution shape collapses. Become. That is, the shape of the passing light distribution in a country where left-hand traffic is regulated is such that an appropriate amount of upward light is generated toward the left front in order to read traffic signs and the like on the left roadside zone.

このような配光形状を形成するものとされている反射面を、車両が右旋回を行う際に左方向に回動させると、本来は左方向にのみ照射されていた上向き光の部分が反対車線側に回動し対向車に幻惑を生じさせるものとなる問題がある。また、上向き光の部分が移動することで当該車両の運転者が左路側帯にある道路標識などが読み取れなくなる問題点を生じ、更には、配光特性の形状変化が急激であり、運転者に違和感を生じさせるなどの問題を生じるものとなっていた。   When the reflecting surface that is supposed to form such a light distribution shape is rotated to the left when the vehicle turns to the right, the portion of the upward light that was originally irradiated only in the left direction is There is a problem of turning to the opposite lane and causing the oncoming vehicle to be dazzled. In addition, the upward light part moves, causing a problem that the driver of the vehicle cannot read road signs and the like in the left roadside zone, and the shape change of the light distribution characteristic is abrupt, Problems such as causing a sense of incongruity were caused.

本発明は、上記した従来の課題を解決するための具体的手段として、光源と、この光源を第一焦点とする楕円面系とした第一反射面と、前記第一反射面の第二焦点の側に設けられる第一投影レンズと、前記光源を第一焦点とし前記第一反射面からの反射光とは反射光が干渉しない位置に設けられた少なくとも１つの第二反射面と、前記第二反射面の反射光が生じる側に設けられ第二反射面と同数とされた第二投影レンズと、閉位置と開位置とへの移動を自在とし、前記閉位置にあるときには前記光源からの光の前記第二反射面への到達を遮蔽し、且つ、前記第一反射面を構成する楕円面の一部を構成する形状とされ、自らの反射光を前記第一投影レンズに入射させ、前記開位置にあるときには前記光源からの光を前記第二反射面に到達させ、且つ、前記光源からの光に対して板厚が平行となる位置に設定され、自らは実質的に反射光を生じない位置となる可動反射面とが設けられていることを特徴とする車両用灯具を提供することで課題を解決するものである。 As specific means for solving the above-described conventional problems, the present invention provides a light source, a first reflecting surface having an ellipsoidal system having the light source as a first focal point, and a second focal point of the first reflecting surface. A first projection lens provided on the first side, at least one second reflecting surface provided at a position where the reflected light does not interfere with reflected light from the first reflecting surface with the light source as a first focal point, and the first A second projection lens provided on the side where the reflected light of the two reflecting surfaces is generated and the same number as the second reflecting surface, and freely movable to a closed position and an open position, and when in the closed position, from the light source It is a shape that blocks the arrival of light to the second reflecting surface and constitutes a part of an elliptical surface that constitutes the first reflecting surface, and makes its reflected light incident on the first projection lens, When in the open position, the light from the light source reaches the second reflecting surface, One, the plate thickness with respect to the light from the light source is set at a position to be parallel, for vehicles, characterized in that themselves may have a movable reflecting surface which is a position that does not cause substantial reflected light is provided The problem is solved by providing a lamp.

本発明により、常時に光源からの光が達している第一反射面と、可動反射面の開閉により光の到達が断続される第二反射面とを設け、常時に光が達している第一反射面側にすれ違い用配光など常用される配光特性の形成を受け持たせ、光が断続される第二反射面側に曲路用など常用でない側の配光特性の形成を受け持たせるものとしたことで、それぞれに最適な形状を設定できるものとして課題を解決するものである。   According to the present invention, a first reflecting surface on which light from a light source reaches at all times and a second reflecting surface on which the arrival of light is interrupted by opening and closing of the movable reflecting surface are provided. The reflective surface side is responsible for the formation of light distribution characteristics that are commonly used such as passing light distribution, and the second reflective surface side where light is interrupted is responsible for the formation of light distribution characteristics on the non-usual side such as for curved paths. As a result, the problem can be solved by setting an optimum shape for each.

つぎに、本発明を図に示す実施形態に基づいて詳細に説明する。図１に示すものは本発明に係る車両用灯具１の第一実施形態であり、まず、前記車両用灯具１には、光源２と、この光源２を第一焦点とする回転楕円面など楕円系とした第一反射面３が設けられ、加えて、前記第一反射面３の第二焦点側には、軸を同一とした第一投影レンズ４が設けられている。   Below, this invention is demonstrated in detail based on embodiment shown in a figure. FIG. 1 shows a first embodiment of a vehicular lamp 1 according to the present invention. First, the vehicular lamp 1 includes a light source 2 and an ellipse such as a spheroid having the light source 2 as a first focal point. A first reflecting surface 3 as a system is provided, and in addition, a first projection lens 4 having the same axis is provided on the second focal side of the first reflecting surface 3.

そして、この第一実施形態においては、前記第一投影レンズ４の焦点の位置に、すれ違い配光を形成するための配光形成用遮蔽板５が設けられている。尚、前記第一投影レンズ４の焦点位置が湾曲している場合、遮蔽を行う位置と行わない位置との境界（明暗境界線）の全面にピントが合うように前記配光形成用遮蔽板５の側も併せて湾曲が行われるものとされている点は、この種プロジェクタ型灯具に行われている公知の手段の通りである。   In the first embodiment, a light distribution forming shielding plate 5 for forming a passing light distribution is provided at the focal position of the first projection lens 4. When the focal position of the first projection lens 4 is curved, the light distribution forming shielding plate 5 is focused on the entire boundary (bright / dark boundary line) between the shielding position and the non-shielding position. The point that the side is also curved is the same as known means used in this type of projector-type lamp.

また、この第一実施形態において、前記第一反射面３の水平方向の左右には、第一反射面３と同様に前記光源２を第一焦点とする回転楕円面など楕円系とした一対の第二反射面６（右第二反射面６Ｒ、左第二反射面６Ｌ）が設けられ、これら第二反射面６（Ｒ、Ｌ）の前方には第二投影レンズ７（右第二投影レンズ７Ｒ、左第二投影レンズ７Ｌ）がそれぞれに設けられている。尚、本発明において上下、左右とは車両に取付けた状態の車両用灯具１を運転席側からみる状態に対して称するものとする。   In the first embodiment, on the left and right in the horizontal direction of the first reflecting surface 3, a pair of elliptical systems such as a spheroid having the light source 2 as the first focal point is provided in the same manner as the first reflecting surface 3. A second reflecting surface 6 (right second reflecting surface 6R, left second reflecting surface 6L) is provided, and a second projection lens 7 (right second projection lens) is disposed in front of the second reflecting surface 6 (R, L). 7R and the second left projection lens 7L). In the present invention, the terms “upper and lower” and “left and right” refer to a state in which the vehicular lamp 1 attached to the vehicle is viewed from the driver's seat side.

また、本発明においては、前記第二反射面６に対して可動反射面８（右可動反射面８Ｒ、左可動反射面８Ｌ）を設けるものであり、この可動反射面８（Ｒ、Ｌ）は軸止などにより閉位置と開位置とに回動が自在なものとされ、閉位置にあるときには、前記第二反射面６（Ｒ、Ｌ）へ光源２の光が達するのを遮蔽する。尚、前記可動反射面８（Ｒ、Ｌ）の開位置と閉位置との回動は、例えばソレノイド、モーターなど適宜な手段で行えば良いものである。   In the present invention, a movable reflective surface 8 (right movable reflective surface 8R, left movable reflective surface 8L) is provided for the second reflective surface 6, and the movable reflective surface 8 (R, L) is The shaft can be freely rotated between a closed position and an open position by a shaft stop or the like, and when in the closed position, the light from the light source 2 is blocked from reaching the second reflecting surface 6 (R, L). The movable reflecting surface 8 (R, L) can be rotated between an open position and a closed position by an appropriate means such as a solenoid or a motor.

このときに、前記可動反射面８（Ｒ、Ｌ）は、前記第一反射面３が形成された楕円面の一部を構成する形状などとされていて、且つ、閉位置における前記光源２に向かう側の面には、銀、アルミニウムの真空蒸着などによる鏡面が形成されており、前記光源２からの光を第一投影レンズ４に入射させる。   At this time, the movable reflecting surface 8 (R, L) has a shape or the like constituting a part of the elliptical surface on which the first reflecting surface 3 is formed, and the movable light reflecting surface 8 (R, L) A mirror surface is formed on the facing surface by vacuum deposition of silver or aluminum, and the light from the light source 2 is incident on the first projection lens 4.

尚、この第一実施形態においては、前記第一反射面３、第一投影レンズ４に対応しては配光形成用遮蔽板５が設けられているものであるので、前記可動反射面８（Ｒ、Ｌ）からの反射光を含めて、前記第一投影レンズ４から投射される光は車両の前方にすれ違い配光を形成するものとなっている。   In the first embodiment, since the light distribution forming shielding plate 5 is provided corresponding to the first reflecting surface 3 and the first projection lens 4, the movable reflecting surface 8 ( The light projected from the first projection lens 4 including the reflected light from (R, L) forms a passing light distribution in front of the vehicle.

また、このときには、上述のように、前記第二反射面６（Ｒ、Ｌ）は、閉位置にある可動反射面８（Ｒ、Ｌ）により光源２からの光を遮蔽されているので反射光を生じることはなく、よって、それら第二反射面６（Ｒ、Ｌ）の前方に設置された第二投影レンズ７（Ｒ、Ｌ）から光が投射されることはない。よって、第一反射面３、第一投影レンズ４、可動反射面８の鏡面、および、配光形成用遮蔽板５により形成され、図２に代表的な形状として示すすれ違い配光Ｄ１が、車両前方に投射されるものとなる。   At this time, as described above, since the second reflecting surface 6 (R, L) is shielded from the light source 2 by the movable reflecting surface 8 (R, L) in the closed position, the reflected light is reflected. Therefore, no light is projected from the second projection lens 7 (R, L) installed in front of the second reflecting surfaces 6 (R, L). Therefore, the passing light distribution D1 formed by the first reflecting surface 3, the first projection lens 4, the mirror surface of the movable reflecting surface 8, and the light distribution forming shielding plate 5 and shown as a representative shape in FIG. Projected forward.

図３は、同じ第一実施形態の車両用灯具１において、前記可動反射面８（Ｒ、Ｌ）を開位置としたときの状態を示すものであり、前記可動反射面８（Ｒ、Ｌ）は金属板など薄い肉厚の部材で形成されており、開位置とするときには光源２からの光に対して板厚が平行となる位置に設定され前記第二反射面６（Ｒ、Ｌ）に光源２からの光を与えると共に、この状態では可動反射面８（Ｒ、Ｌ）の鏡面には光源２からの光が達せず、基本的には反射光を生じることのないものとされている。   FIG. 3 shows a state in which the movable reflective surface 8 (R, L) is in the open position in the vehicular lamp 1 of the same first embodiment, and the movable reflective surface 8 (R, L). Is formed of a thin member such as a metal plate, and when it is in the open position, the plate thickness is set to a position parallel to the light from the light source 2, and the second reflecting surface 6 (R, L) is set. The light from the light source 2 is given, and in this state, the light from the light source 2 does not reach the mirror surface of the movable reflecting surface 8 (R, L), and basically no reflected light is generated. .

このようにすることで、図１の閉位置では遮蔽されていた第二反射面６（Ｒ、Ｌ）に光が達し反射光が生じるものとなり、第二投影レンズ７（Ｒ、Ｌ）を介して車両前方に投射されるものとなる。ここで、この実施形態では前記第二反射面６（Ｒ、Ｌ）、第二投影レンズ７（Ｒ、Ｌ）側には配光形成用遮蔽板５を設けないものとしてあり、また、前記第二反射面６（Ｒ、Ｌ）は、車両の正面方向にスポット状の配光特性が得られるものとしてある。   By doing so, the light reaches the second reflecting surface 6 (R, L) that is shielded at the closed position in FIG. 1 to generate reflected light, and the second projection lens 7 (R, L) is passed through. Projecting forward of the vehicle. Here, in this embodiment, the light distribution forming shielding plate 5 is not provided on the second reflecting surface 6 (R, L) and the second projection lens 7 (R, L) side. The two reflecting surfaces 6 (R, L) are designed to obtain spot-like light distribution characteristics in the front direction of the vehicle.

図４は上記図３に示した可動反射面８（Ｒ、Ｌ）が開位置であるときの車両用灯具１で得られる配光特性を示すものであり、基本的には第一反射面３と第一投影レンズ４と、配光形成用遮蔽板５とで形成されるすれ違い配光Ｄ１に、第二反射面６（Ｒ、Ｌ）と、第二投影レンズ７（Ｒ、Ｌ）とで形成されるスポット配光Ｄ２（Ｒ、Ｌ）が重なり合わされるものとなり、車両の正面方向の遠方を照射する走行配光Ｄ３が得られるものとなる。   FIG. 4 shows the light distribution characteristic obtained by the vehicular lamp 1 when the movable reflecting surface 8 (R, L) shown in FIG. 3 is in the open position. Basically, the first reflecting surface 3 is shown. And the first projection lens 4 and the passing light distribution D1 formed by the light distribution forming shielding plate 5 with the second reflection surface 6 (R, L) and the second projection lens 7 (R, L). The formed spot light distributions D2 (R, L) are overlapped, and a travel light distribution D3 that irradiates far away in the front direction of the vehicle is obtained.

尚、この実施形態においては、前記第二反射面６（Ｒ、Ｌ）と可動反射面８（Ｒ、Ｌ）とはそれぞれに１対が設けられるものとして説明したが、これは、必ずしも必要条件ではなく、何れか一方のみを設けるものとしても良く、更には、車体の左右に設ける車両用灯具１同士が左右対称の形状となるように、一方は右側に第二反射面６と第二投影レンズ７と可動反射面８とを設け、他方は左側に第二反射面６と第二投影レンズ７と可動反射面８とを設けるものとしても良い。   In this embodiment, the second reflecting surface 6 (R, L) and the movable reflecting surface 8 (R, L) are described as being provided as a pair, but this is not necessarily a necessary condition. Instead, only one of them may be provided. Furthermore, one of the two reflecting surfaces 6 and the second projection is provided on the right side so that the vehicular lamps 1 provided on the left and right sides of the vehicle body have a symmetrical shape. The lens 7 and the movable reflection surface 8 may be provided, and the other may be provided with the second reflection surface 6, the second projection lens 7, and the movable reflection surface 8 on the left side.

次いで、上記の構成とした本発明の車両用灯具１の作用、効果について説明する。まず第一には、本発明の車両用灯具１では、第一反射面３と第一投影レンズ４と配光形成用遮蔽板５とにより夜間走行時には標準的に使用されるすれ違い配光Ｄ１を形成しておき、配光特性を変更するときには、可動反射面８（Ｒ、Ｌ）を移動させることで、第二反射面６（Ｒ、Ｌ）と第二投影レンズ７（Ｒ、Ｌ）とにも光を与え、スポット配光Ｄ２を形成し、前記すれ違い配光Ｄ１と加算を行うことで走行配光Ｄ３を得るものである。   Next, the operation and effect of the vehicular lamp 1 having the above-described configuration will be described. First of all, in the vehicular lamp 1 according to the present invention, the first light reflecting surface 3, the first projection lens 4, and the light distribution forming shielding plate 5 provide a low light distribution D1 that is normally used during night driving. In order to change the light distribution characteristics, the second reflecting surface 6 (R, L) and the second projection lens 7 (R, L) are moved by moving the movable reflecting surface 8 (R, L). In addition, light is also applied to form a spot light distribution D2, and a running light distribution D3 is obtained by performing addition with the passing light distribution D1.

従って、従来例のすれ違い配光を形成している反射面の一部を回動させることで、すれ違い配光自体の形状が崩れ、例えば、対向車の運転者に幻惑を生じさせたり、或いは、路側帯にある道路標識の読み取りが困難となるなどの問題を生じていたのを回避できるものとなる。   Therefore, by rotating a part of the reflective surface forming the passing light distribution of the conventional example, the shape of the passing light distribution itself collapses, for example, causing the driver of the oncoming vehicle to be dazzled, or It is possible to avoid problems such as difficulty in reading road signs in the roadside belt.

また第二には、すれ違い配光で走行しているときには第一投影レンズ４のみから光が放射され、配光を変更しているときには、第一投影レンズ４と、一方の第二投影レンズ７、若しくは、双方の第二投影レンズ７から光が投射されるものとなるので、車両に斬新な見栄えが提供できるものとなる。   Second, light is emitted only from the first projection lens 4 when traveling with a passing light distribution, and the first projection lens 4 and one of the second projection lenses 7 when the light distribution is changed. Alternatively, since light is projected from both the second projection lenses 7, a novel appearance can be provided to the vehicle.

図５は、本発明に係る車両用灯具１の第二実施形態であり、この第二実施形態においても車両用灯具１は、１つの光源２と、前記光源２に第一焦点を有する第一反射面３と、第一投影レンズ４と、配光形成用遮蔽板５と、第二反射面６（Ｒ、Ｌ）と、第二投影レンズ７（Ｒ、Ｌ）とから構成されているものである点は前の第一実施形態と同様である。   FIG. 5 shows a second embodiment of the vehicular lamp 1 according to the present invention. In this second embodiment as well, the vehicular lamp 1 has a first light source 2 and a first focus on the light source 2. Consists of a reflective surface 3, a first projection lens 4, a light distribution forming shielding plate 5, a second reflective surface 6 (R, L), and a second projection lens 7 (R, L). This is the same as the previous first embodiment.

また、前記第二反射面６（Ｒ、Ｌ）に対応しては可動反射面８（Ｒ、Ｌ）が設けられているのも前の第一実施形態と同様であるが、前記可動反射面８は、右可動反射面８Ｒと左可動反射面８Ｌとが個別に可動できるものとされ、それらの可動は、例えば運転者におけるターンシグナルの投入、或いは、ハンドルの操作に連動するものとされている。   Further, the movable reflective surface 8 (R, L) is provided corresponding to the second reflective surface 6 (R, L) as in the first embodiment, but the movable reflective surface 8, the right movable reflective surface 8R and the left movable reflective surface 8L can be individually moved, and these movables are linked with, for example, turning on of a driver or operation of a steering wheel. Yes.

尚、この第二実施形態においては、ターンシグナル・スイッチ、或いは、ハンドルが操作されないときには、左右の可動反射面８（Ｒ、Ｌ）は共に閉位置にあり、右折側にターンシグナル・スイッチが操作されたとき、或いは、右折方向にハンドルが操作されたときには、左可動反射面８Ｌが開位置に移動し、左第二反射面６Ｌに光源２からの光が供給されるものとなる。   In the second embodiment, when the turn signal switch or the handle is not operated, the left and right movable reflecting surfaces 8 (R, L) are both in the closed position, and the turn signal switch is operated to the right turn side. When the handle is operated in the right turn direction, the left movable reflecting surface 8L moves to the open position, and the light from the light source 2 is supplied to the left second reflecting surface 6L.

そして、この第二実施形態においては、前記左第二反射面６Ｌは、前の第一実施形態では車両の正面方向に反射光を生じるものとして形成されていたのに対し、右方向に向かう反射光の量をより多く生じるように反射面形状が設定され、同様に前記右第二反射面６Ｒは左方向に向かう反射光の量をより多く生じるように設定されている。   In the second embodiment, the left second reflecting surface 6L is formed to generate reflected light in the front direction of the vehicle in the previous first embodiment, whereas it is reflected in the right direction. The shape of the reflecting surface is set so as to generate a larger amount of light. Similarly, the right second reflecting surface 6R is set so as to generate a larger amount of reflected light toward the left.

よって、上記した右折側への操作が行われた状態では、左第二投影レンズ７Ｌから車体の右前方を照射する光が照射光として放射されるものとなり、図６に示すように、第一反射面３、第一投影レンズ４、配光形成用遮蔽板５により形成されるすれ違い配光Ｄ１に、左第二反射面６Ｌと左投影レンズ７Ｌとによる右前方照射光Ｄ４が組合わされ右折用配光Ｄ５が得られるものとなる。   Therefore, in the state where the operation on the right turn side described above is performed, the light that irradiates the right front of the vehicle body is emitted from the second left projection lens 7L as irradiation light, and as shown in FIG. Right turn irradiation light D4 from the left second reflection surface 6L and the left projection lens 7L is combined with the passing light distribution D1 formed by the reflection surface 3, the first projection lens 4, and the light distribution forming shielding plate 5, and is used for right turn. The light distribution D5 is obtained.

また、ターンシグナル・スイッチ、或いは、ハンドルが左折側に操作されたときには、図７に示すように右可動反射面８Ｒが開位置となり、右第二反射面７Ｒに光源２からの光が供給され、この右第二反射面６Ｒは、車両の正面方向に対して左方向に向かう光をより多く反射し、図８に示すように、右第二投影レンズ７Ｒから車体の左前方を照射する左前方照射光Ｄ６が形成され、上記したすれ違い配光Ｄ１との組合せで左折用配光Ｄ７が得られるものとなる。   When the turn signal switch or the handle is operated to the left turn side, the right movable reflecting surface 8R is in the open position as shown in FIG. 7, and the light from the light source 2 is supplied to the right second reflecting surface 7R. The right second reflecting surface 6R reflects more light toward the left with respect to the front direction of the vehicle, and as shown in FIG. 8, the left second irradiating left front of the vehicle body from the right second projection lens 7R. The front irradiation light D6 is formed, and the left turn light distribution D7 is obtained in combination with the above-mentioned passing light distribution D1.

尚、第二実施形態においては、組合せを行う基準がすれ違い配光Ｄ１であるので、前記右前方照射光Ｄ４、および、左前方照射光Ｄ６も上向き光を含まないものとすることが好ましく、この場合には、右第二投影レンズ７Ｒの焦点の位置には右遮蔽板５Ｒ、左第二投影レンズ７Ｒの焦点の位置には左遮蔽板５Ｌをそれぞれ設けておくものとすれば良い。   In the second embodiment, since the standard for performing the combination is the passing light distribution D1, it is preferable that the right front irradiation light D4 and the left front irradiation light D6 also do not include upward light. In this case, the right shielding plate 5R may be provided at the focal position of the right second projection lens 7R, and the left shielding plate 5L may be provided at the focal position of the left second projection lens 7R.

また、第二実施形態の実際の実施にあたっては、例えば、車体の左側に取付けられる車両用灯具１には、右遮蔽板５Ｒ、右第二反射面６Ｒ、右第二投影レンズ７Ｒ、右可動反射面８Ｒを設けて、左前方照射光Ｄ６を照射できるものとし、車体の左側に取付けられる車両用灯具１には、左遮蔽板５Ｌ、左第二反射面６Ｌ、左第二投影レンズ７Ｌ、左可動反射面８Ｌを設けて、右前方照射光Ｄ４を照射できるものとするなども自在であり、この場合には１つの車両用灯具１は２つの投影レンズを有する外観となる。   In actual implementation of the second embodiment, for example, the vehicular lamp 1 attached to the left side of the vehicle body includes a right shielding plate 5R, a right second reflecting surface 6R, a right second projection lens 7R, a right movable reflection. It is assumed that the surface 8R is provided and can irradiate the left front irradiation light D6. The vehicular lamp 1 attached to the left side of the vehicle body includes a left shielding plate 5L, a left second reflection surface 6L, a left second projection lens 7L, a left It is also possible to provide a movable reflecting surface 8L so that the right front irradiation light D4 can be irradiated. In this case, one vehicular lamp 1 has an appearance having two projection lenses.

その他の応用としては、第二反射面６を上下方向に配置して、第一投影レンズ４、第二投影レンズ７が上下方向に並ぶデザインのものも実施可能である、更には、第二反射面６を上下方向と左右方向とに配置して、例えば、左右方向で車両の旋回時の配光を形成し、上下方向ですれ違い配光と走行配光とを形成するなどの応用が考えられる。   As other applications, it is possible to implement a design in which the second reflecting surface 6 is arranged in the vertical direction and the first projection lens 4 and the second projection lens 7 are arranged in the vertical direction. For example, the surface 6 may be arranged in the vertical direction and the horizontal direction, for example, to form a light distribution when turning the vehicle in the horizontal direction, and to form a light distribution and a traveling light distribution in the vertical direction. .

本発明に係る車両用灯具の第一実施形態を可動反射面が閉位置の状態で示す断面図である。It is sectional drawing which shows 1st embodiment of the vehicle lamp which concerns on this invention in a state in which a movable reflective surface is a closed position. 図１の状態における車両用灯具の配光特性を示す説明図である。It is explanatory drawing which shows the light distribution characteristic of the vehicle lamp in the state of FIG. 同じく本発明に係る車両用灯具の第一実施形態を可動反射面が開位置の状態で示す断面図である。It is sectional drawing which similarly shows 1st embodiment of the vehicle lamp which concerns on this invention in the state in which a movable reflective surface is an open position. 図３の状態における車両用灯具の配光特性を示す説明図である。It is explanatory drawing which shows the light distribution characteristic of the vehicle lamp in the state of FIG. 同じく本発明に係る車両用灯具の第二実施形態を車両が右旋回を行うときの状態で示す断面図である。It is sectional drawing which similarly shows 2nd embodiment of the vehicle lamp which concerns on this invention in the state when a vehicle turns right. 図５の状態における車両用灯具の配光特性を示す説明図である。It is explanatory drawing which shows the light distribution characteristic of the vehicle lamp in the state of FIG. 同じく本発明に係る車両用灯具の第二実施形態を車両が左旋回を行うときの状態で示す断面図である。It is sectional drawing which similarly shows 2nd embodiment of the vehicle lamp which concerns on this invention in the state when a vehicle turns left. 図７の状態における車両用灯具の配光特性を示す説明図である。It is explanatory drawing which shows the light distribution characteristic of the vehicle lamp in the state of FIG.

符号の説明Explanation of symbols

１…車両用灯具
２…光源
３…第一反射面
４…第一投影レンズ
５…配光形成用遮蔽板
５Ｒ…右遮蔽板
５Ｌ…左遮蔽板
６…第二反射面
６Ｒ…右第二反射面
６Ｌ…左第二反射面
７…第二投影レンズ
７Ｒ…右第二投影レンズ
７Ｌ…左第二投影レンズ
８…可動反射面
８Ｒ…右可動反射面
８Ｌ…左可動反射面 DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp 2 ... Light source 3 ... 1st reflection surface 4 ... 1st projection lens 5 ... Light distribution formation shielding plate 5R ... Right shielding plate 5L ... Left shielding plate 6 ... 2nd reflection surface 6R ... Right 2nd reflection Surface 6L ... Second left reflecting surface 7 ... Second projection lens 7R ... Right second projection lens 7L ... Second left projection lens 8 ... Movable reflecting surface 8R ... Right movable reflecting surface 8L ... Left movable reflecting surface

Claims (2)

光源と、この光源を第一焦点とする楕円面系とした第一反射面と、前記第一反射面の第二焦点の側に設けられる第一投影レンズと、前記光源を第一焦点とし前記第一反射面からの反射光とは反射光が干渉しない位置に設けられた少なくとも１つの第二反射面と、前記第二反射面の反射光が生じる側に設けられ第二反射面と同数とされた第二投影レンズと、閉位置と開位置とへの移動を自在とし、前記閉位置にあるときには前記光源からの光の前記第二反射面への到達を遮蔽し、且つ、前記第一反射面を構成する楕円面の一部を構成する形状とされ、自らの反射光を前記第一投影レンズに入射させ、前記開位置にあるときには前記光源からの光を前記第二反射面に到達させ、且つ、前記光源からの光に対して板厚が平行となる位置に設定され、自らは実質的に反射光を生じない位置となる可動反射面とが設けられていることを特徴とする車両用灯具。 A light source, a first reflecting surface having an ellipsoidal system having the light source as a first focal point, a first projection lens provided on a second focal side of the first reflecting surface, and the light source as a first focal point. The reflected light from the first reflecting surface is at least one second reflecting surface provided at a position where the reflected light does not interfere, and the same number as the second reflecting surface provided on the side where the reflected light is generated on the second reflecting surface. The second projection lens, and can be moved freely between a closed position and an open position, and when in the closed position, the light from the light source is blocked from reaching the second reflecting surface, and the first It is shaped to form part of an elliptical surface that constitutes the reflecting surface, and its reflected light is incident on the first projection lens, and when it is in the open position, the light from the light source reaches the second reflecting surface It is allowed, and the plate thickness with respect to light from the light source is set to a position that it may become parallel, Luo vehicle lamp, characterized in that the movable reflecting surface which is a position that does not cause substantial reflected light is provided. 少なくとも前記第一反射面と第一投影レンズとの組合せに対応しては、すれ違い配光を形成するための配光形成用遮蔽板が設けられていることを特徴とする請求項１記載の車両用灯具。   The vehicle according to claim 1, further comprising a light distribution forming shielding plate for forming a passing light distribution corresponding to at least a combination of the first reflecting surface and the first projection lens. Lamps.
JP2003399754A 2003-11-28 2003-11-28 Vehicle lighting Expired - Fee Related JP4272974B2 (en)

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JP4517959B2 (en) * 2005-06-28 2010-08-04 市光工業株式会社 Vehicle headlamp
US7325954B2 (en) 2005-09-26 2008-02-05 Stanley Electric Co., Ltd. Vehicle light
JP5345014B2 (en) * 2009-08-03 2013-11-20 株式会社小糸製作所 Vehicle lighting
JP5519400B2 (en) * 2010-05-20 2014-06-11 株式会社小糸製作所 Lighting fixtures for vehicles
CN104214676B (en) * 2013-05-29 2016-09-07 海洋王（东莞）照明科技有限公司 Gas-discharge lamp and reflection subassembly thereof

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