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JP4093534B2 - Vehicle headlamp - Google Patents

Vehicle headlamp Download PDF

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Publication number
JP4093534B2
JP4093534B2 JP2002072321A JP2002072321A JP4093534B2 JP 4093534 B2 JP4093534 B2 JP 4093534B2 JP 2002072321 A JP2002072321 A JP 2002072321A JP 2002072321 A JP2002072321 A JP 2002072321A JP 4093534 B2 JP4093534 B2 JP 4093534B2
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JP
Japan
Prior art keywords
reflecting surface
light
light source
focal point
reflecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2002072321A
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Japanese (ja)
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JP2003272420A (en
Inventor
真 金田
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Priority to JP2002072321A priority Critical patent/JP4093534B2/en
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Classifications

    • 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
    • F21S41/10—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
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • 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
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

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

Description

【０００１】
【発明の属する技術分野】
本発明は車両用前照灯に係るものであり、詳細にはプロジェクタ型と称され、長軸を回転軸とした回転楕円など第一焦点と第二焦点とを有する楕円系反射面を採用した車両用前照灯の性能向上に係る。
【０００２】
【従来の技術】
従来の、プロジェクタ型とした車両用前照灯９０の構成の例を示すものが図６であり、例えば、長軸Ｘを回転軸とする回転放物面として形成された反射鏡９１の第一焦点ｆ１に一致してハロゲン電球など光源９２が配置され、この反射鏡９１の略第二焦点ｆ２には略一致させられて配光形成用遮光板９３が設けられている。また、前記長軸Ｘの前方、即ち照射方向前方には、前記配光形成用遮光板９３に焦点を位置させる投影レンズ９４が設けられている。
【０００３】
上記の構成により、前記第一焦点ｆ１におかれた光源９２の像は第二焦点ｆ２に結像するものとなるが、投影レンズ９４で投射されると上向き光となる反射鏡９１の下半部で反射した光は配光形成用遮光板９３により遮蔽され、投影レンズ９４に達することはない。よって、車両用前照灯９０としての照射光には上向き光は含まれることはなく図７に示すような配光形状Ｄ３が得られるものとなり、対向車、歩行者などに幻惑を生じさせることはない。
【０００４】
【発明が解決しようとする課題】
しかしながら、前記した従来の車両用前照灯９０の構成においては、上記の説明でも明らかなように、反射鏡９１の下半部に反射する光は配光形成用遮光板９３で遮蔽してしまうものであるので、反射鏡９１で反射した光の内の約５０％を照射光として使用するに過ぎず効率が低いという問題点を生じていた。
【０００５】
【課題を解決するための手段】
本発明は、前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、該光源を第一焦点としてこの光源の略上方に設けられ長軸が略水平な楕円系とした第一反射面と、前記光源の略下方に設けられ長軸が略水平な楕円系とした第二反射面と、前記光源の中心線よりも適宜の下方で且つ前記光源と第二反射面の第二焦点との間に略水平として設けられる第三反射面と、前記第一反射面の第二焦点と、前記第二反射面の第二焦点が前記第三反射面にて反転され結像する位置との、少なくとも一方の近傍に設けられた配光形成用遮光板と、前記第一反射面に対応する第一投影レンズと、前記第二反射面および前記第三反射面に対応する第二投影レンズとから成ることを特徴とする車両用前照灯を提供することで課題を解決するものである。
【０００６】
【発明の実施の形態】
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、図２に符号１で示すものは本発明に係る車両用前照灯であり、この車両用前照灯１には、長軸Ｘを回転軸とした回転楕円面など楕円系の反射鏡２が設けられ、また、前記反射鏡２の第一焦点ｆ１に一致させては光源３が配置されているものである点は従来例のものと同様である。よって、本発明においても光源３の中心線は長軸Ｘと一致し、車両用前照灯１としての照射方向も長軸Ｘと一致している。
【０００７】
ここで、この実施形態においては、前記反射鏡２は１つの楕円を長軸Ｘで回転させ、この反射鏡２は上半部である第一反射面２１と、下半部である第二反射面２２とは上下対称のものとして説明を行うが、後に別の実施形態として説明するように本発明はこれを限定するものではない。そして、前記反射鏡２の第二焦点ｆ２の近傍には配光形成用遮光板５が設けられるものである点も従来例のものと同様である。
【０００８】
本発明においては前記長軸Ｘの適宜な下方に第三反射面４を設けるものであり、この第三反射面４は、基本的には、車体に取付けた状態における車両用前照灯１に対して鏡面を下向きとする水平な平面鏡として形成されており、その設けられる範囲は前記光源３からの第二反射面２２へ達する光を遮蔽することがなく、且つ、第二反射面２２からの反射光を可能な限りに多く反射できる範囲であれば良い。
【０００９】
このように第三反射面を長軸Ｘの適宜な下方に構成したことで、図２にも示すように第二反射面２２からの反射光は収束を行う前に第三反射面４に達し、そして、反射を行った後に上下方向が反転した反転第二焦点ｆ３を結像するものとなる。
【００１０】
これを、反転第二焦点ｆ３の側からみると、前記第二反射面２２はあたかも光源２の上方に存在しているような作用が得られるものとなり、即ち、得られる照射光は全て下向きの光に変換されたものとなる。よって、本発明によれば、第一反射面２１からの反射光も、第二反射面２２からの反射光も基本的には下向光の成分が大部分のものとなり、双方共に対向車などに幻惑を与えることのない照射光として使用できるものとなる。尚、必要に応じては前記反転第二焦点ｆ３の近傍に第二配光形成用遮光板６を設けるのは自在である。
【００１１】
また、上記のように構成した車両用前照灯１における配光特性を形成するときの手法の例を示すものが図３であり、例えば第一反射面２１からの反射光と配光形成用遮光板５と第一投影レンズ７とですれ違い配光としての基本配光形状Ｄ１を形成し、第二反射面２２からの反射光と、第二配光形成用遮光板６、第二投影レンズ８で主として正面方向を照射する第二配光形状Ｄ２を形成し基本配光形状Ｄ１に重ね合わせて、この車両用前照灯１の総合配光形状Ｄ０とする。
【００１２】
尚、ここで、本発明を実際に実施するにあたっては、前記第三反射面４は長軸Ｘよりも下方に設けられているものであるので、第三反射面４で反射が行われる全ての光は下向きとなる。よって、もしも水平方向への光、あるいは適宜の上向き光が要求される場合には、図４に別の実施形態として示すように、前記第三反射面４を適宜の前上がりとして設置すれば良い。また、例えば、左側通行で左上がり、右側通行で右上がりの配光が望まれる場合など、車両用前照灯１を正面から見る状態で前記第三反射面４を右上がり、あるいは、左上がりに傾けるなども自在である。
【００１３】
図５は本発明に係る車両用前照灯１の更に別の実施形態であり、前の何れの実施形態も、第一反射面２１と第二反射面２２とは同じ楕円により形成される楕円面であるとして説明したが、この実施形態では第一反射面２３と第二反射面２４とは離心率の異なる楕円を採用し、第二反射面２４と第三反射面４とにより生じる反転第二焦点ｆ３の位置を第一反射面２３の第二焦点ｆ２よりも前方に位置させている。
【００１４】
このようにすることで、反転第二焦点ｆ３に対応する第二投影レンズ８も第一投影レンズ７よりも前方に設置することが可能となり、例えばスラントノーズなどと称されて、前下がりに傾斜させられた前端部を有する車両デザインに合致させることが容易となる。尚、これは、第二投影レンズ８の焦点距離を長いものとすることでも可能であるが、この場合には第二投影レンズ８の径も大きく（図３参照）なる。
【００１５】
ついで、上記の構成とした本発明の車両用前照灯の作用、および、効果について説明する。本発明により鏡面を下向きとする第三反射面４を設け、長軸Ｘよりも下方に位置し本来であれば上向き光となる第二反射面２２（２４）からの反射光の進行方向を反転させたことで、第二反射面２２（２４）が長軸Ｘよりも上方に位置しているのと同等な進行方向に変換するものとなる。
【００１６】
従って、第二反射面２２（２４）からの反射光も第一反射面２１（２３）からの反射光と同様に、そのほとんどが下向き光成分のものとなり、従来例の車両用前照灯のように、対向車の運転者などに幻惑を生じさせることがなく、車両用前照灯１の照射光として使用できるものとなる。よって、本発明によれば、同じ光源２を採用する場合には略２倍明るい車両用前照灯１の実現が可能となり、同じ明るさの車両用前照灯１で良い場合には消費電力の略半減が可能となる。
【００１７】
【発明の効果】
以上に説明したように本発明により、光源と、該光源を第一焦点としてこの光源の略上方に設けられ長軸が略水平な楕円系とした第一反射面と、前記光源の略下方に設けられ長軸が略水平な楕円系とした第二反射面と、前記光源の中心線よりも適宜の下方で且つ前記光源と第二反射面の第二焦点との間に略水平として設けられる第三反射面と、前記第一反射面の第二焦点と、前記第二反射面の第二焦点が前記第三反射面にて反転され結像する位置との、少なくとも一方の近傍に設けられた配光形成用遮光板と、前記第一反射面に対応する第一投影レンズと、前記第二反射面および前記第三反射面に対応する第二投影レンズとから成ることを特徴とする車両用前照灯としたことで、従来は上向き光となり、対向車などに眩惑を発生させる要因となるので、配光形成用遮光板により遮蔽せざるを得なかった第二反射面からの反射光を第三反射面によりあたかも第一反射面からの反射光の如くに下向きのものに変換し、照射光に採用可能として光源に対する光束利用率を飛躍的に向上させ、もって、照射範囲の拡大、あるいは、消費電力の低減など、この種の車両用灯具の性能向上に極めて優れた効果を奏するものである。
【図面の簡単な説明】
【図１】 本発明に係る車両用前照灯の実施形態を示す斜視図である。
【図２】 図１のＡ−Ａ線に沿う断面図である。
【図３】 本発明に係る車両用前照灯の配光形状の例を示す説明図である。
【図４】 本発明に係る車両用前照灯の別の実施形態を示す断面図である。
【図５】 本発明に係る車両用前照灯の更に別の実施形態を示す断面図である。
【図６】 従来例を示す断面図である。
【図７】 従来例の配光形状を示す説明図である。
【符号の説明】
１……車両用前照灯
２……反射鏡
２１、２３……第一反射面
２２、２４……第二反射面
３……光源
４……第三反射面
５……配光形成用遮光板
６……第二配光形成用遮光板
７……第一投影レンズ
８……第二投影レンズ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle headlamp, which is called a projector type in detail, and employs an elliptical reflecting surface having a first focal point and a second focal point such as a rotating ellipse having a major axis as a rotational axis. It relates to the performance improvement of vehicle headlamps.
[0002]
[Prior art]
FIG. 6 shows an example of the configuration of a conventional projector-type vehicle headlamp 90. For example, the first reflector 91 formed as a paraboloid of revolution having a major axis X as a rotation axis is shown in FIG. A light source 92 such as a halogen light bulb is disposed so as to coincide with the focal point f1, and a light distribution forming light shielding plate 93 is provided so as to substantially coincide with the substantially second focal point f2 of the reflecting mirror 91. In addition, a projection lens 94 is provided in front of the long axis X, that is, in front of the irradiation direction to position the focal point on the light distribution forming light shielding plate 93.
[0003]
With the above configuration, the image of the light source 92 placed at the first focal point f1 is formed at the second focal point f2, but the lower half of the reflecting mirror 91 that becomes upward light when projected by the projection lens 94. The light reflected by the portion is shielded by the light distribution forming light shielding plate 93 and does not reach the projection lens 94. Therefore, upward light is not included in the irradiation light as the vehicle headlamp 90, and a light distribution shape D3 as shown in FIG. 7 is obtained, which causes oncoming vehicles, pedestrians and the like to be dazzled. There is no.
[0004]
[Problems to be solved by the invention]
However, in the configuration of the above-described conventional vehicle headlamp 90, as is apparent from the above description, light reflected on the lower half of the reflecting mirror 91 is shielded by the light distribution forming light shielding plate 93. Therefore, only about 50% of the light reflected by the reflecting mirror 91 is used as irradiation light, resulting in a problem of low efficiency.
[0005]
[Means for Solving the Problems]
The present invention provides, as specific means for solving the above-described conventional problems, a light source, and a first reflection having an elliptical system in which the light source serves as a first focal point and is provided substantially above the light source and whose major axis is substantially horizontal. A second reflecting surface provided substantially below the light source and having an elliptical system whose major axis is substantially horizontal, and a second focal point appropriately below the center line of the light source and the light source and the second reflecting surface. A third reflecting surface provided approximately horizontally, a second focal point of the first reflecting surface, and a position at which the second focal point of the second reflecting surface is inverted and imaged by the third reflecting surface; A light distribution forming light shielding plate provided in the vicinity of at least one of the first projection lens, the first projection lens corresponding to the first reflection surface, and the second projection lens corresponding to the second reflection surface and the third reflection surface. The problem is solved by providing a vehicular headlamp characterized by comprising:
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Below, this invention is demonstrated in detail based on embodiment shown in a figure. 1 and FIG. 2 shows a vehicle headlamp according to the present invention. The vehicle headlamp 1 has an elliptical reflection such as a spheroid having a major axis X as a rotation axis. The mirror 2 is provided, and the light source 3 is arranged so as to coincide with the first focal point f1 of the reflecting mirror 2 as in the conventional example. Therefore, also in the present invention, the center line of the light source 3 coincides with the long axis X, and the irradiation direction as the vehicular headlamp 1 also coincides with the long axis X.
[0007]
Here, in this embodiment, the reflecting mirror 2 rotates one ellipse around the major axis X, and the reflecting mirror 2 has a first reflecting surface 21 which is an upper half and a second reflecting which is a lower half. The description will be made assuming that the surface 22 is vertically symmetrical, but the present invention is not limited to this as will be described later as another embodiment. The light distribution forming light shielding plate 5 is provided in the vicinity of the second focal point f2 of the reflecting mirror 2 in the same manner as the conventional example.
[0008]
In the present invention, the third reflecting surface 4 is provided below the major axis X. The third reflecting surface 4 is basically provided on the vehicle headlamp 1 in a state of being attached to the vehicle body. On the other hand, it is formed as a horizontal plane mirror with the mirror surface facing downward, and the provided range does not block the light reaching the second reflecting surface 22 from the light source 3 and from the second reflecting surface 22. Any range that can reflect as much reflected light as possible is acceptable.
[0009]
Since the third reflecting surface is configured appropriately below the long axis X as described above, the reflected light from the second reflecting surface 22 reaches the third reflecting surface 4 before convergence as shown in FIG. Then, after the reflection, an image is formed of the inverted second focal point f3 whose vertical direction is inverted.
[0010]
When this is seen from the side of the inverted second focal point f3, the second reflecting surface 22 has an effect as if it exists above the light source 2, that is, all of the obtained irradiation light is directed downward. It is converted to light. Therefore, according to the present invention, both the reflected light from the first reflecting surface 21 and the reflected light from the second reflecting surface 22 basically have a component of downward light, both of which are oncoming vehicles, etc. It can be used as irradiating light that does not give glare. If necessary, a second light distribution forming light shielding plate 6 can be provided in the vicinity of the inverted second focal point f3.
[0011]
FIG. 3 shows an example of a method for forming the light distribution characteristics in the vehicle headlamp 1 configured as described above. For example, the reflected light from the first reflecting surface 21 and the light distribution formation are shown. The light shielding plate 5 and the first projection lens 7 form a basic light distribution shape D1 as a passing light distribution, the reflected light from the second reflecting surface 22, the second light distribution forming light shielding plate 6, and the second projection lens. 8, a second light distribution shape D2 that mainly illuminates the front direction is formed and superimposed on the basic light distribution shape D1 to obtain a total light distribution shape D0 of the vehicle headlamp 1.
[0012]
Here, in actual implementation of the present invention, since the third reflecting surface 4 is provided below the major axis X, all of the light reflected by the third reflecting surface 4 is used. The light goes down. Therefore, if light in the horizontal direction or appropriate upward light is required, the third reflecting surface 4 may be installed as appropriate upward as shown in FIG. 4 as another embodiment. . In addition, for example, when it is desired to distribute light that is left-handed and left-handed and right-handed right-handed, the third reflecting surface 4 is raised rightward or leftward when the vehicle headlamp 1 is viewed from the front. You can also tilt it.
[0013]
FIG. 5 shows still another embodiment of the vehicle headlamp 1 according to the present invention. In any of the previous embodiments, the first reflecting surface 21 and the second reflecting surface 22 are formed by the same ellipse. In this embodiment, the first reflecting surface 23 and the second reflecting surface 24 adopt ellipses having different eccentricities, and the second reflecting surface 24 and the third reflecting surface 4 are inverted. The position of the bifocal point f3 is positioned in front of the second focal point f2 of the first reflecting surface 23.
[0014]
In this way, the second projection lens 8 corresponding to the inverted second focal point f3 can also be placed in front of the first projection lens 7, and is called, for example, a slant nose or the like and tilted forwardly downward. It is easy to match the vehicle design with the raised front end. This can be achieved by increasing the focal length of the second projection lens 8, but in this case, the diameter of the second projection lens 8 is also increased (see FIG. 3).
[0015]
Next, the operation and effect of the vehicle headlamp of the present invention having the above-described configuration will be described. According to the present invention, the third reflecting surface 4 with the mirror surface facing downward is provided, and the traveling direction of the reflected light from the second reflecting surface 22 (24) which is located below the major axis X and is normally upward light is reversed. By doing so, the second reflecting surface 22 (24) is converted into a traveling direction equivalent to that of being positioned above the major axis X.
[0016]
Therefore, most of the reflected light from the second reflecting surface 22 (24) also has a downward light component, similar to the reflected light from the first reflecting surface 21 (23). As described above, the driver of the oncoming vehicle is not dazzled and can be used as the irradiation light of the vehicle headlamp 1. Therefore, according to the present invention, when the same light source 2 is employed, it is possible to realize the vehicular headlamp 1 that is approximately twice as bright, and when the vehicular headlamp 1 having the same brightness is sufficient, power consumption is achieved. Can be approximately halved.
[0017]
【The invention's effect】
As described above, according to the present invention, a light source, a first reflecting surface that is provided substantially above the light source with the light source as a first focal point and has an elliptical system whose major axis is substantially horizontal, and substantially below the light source. Provided as a substantially horizontal second reflecting surface provided with an elliptical system whose major axis is substantially horizontal, and substantially below the center line of the light source and between the light source and the second focal point of the second reflecting surface. Provided in the vicinity of at least one of a third reflecting surface, a second focal point of the first reflecting surface, and a position where the second focal point of the second reflecting surface is inverted and imaged by the third reflecting surface. A vehicle comprising: a light distribution forming light shielding plate; a first projection lens corresponding to the first reflection surface; and a second projection lens corresponding to the second reflection surface and the third reflection surface. As a headlamp, it has traditionally turned upward and is a cause of dazzling oncoming vehicles. Therefore, the reflected light from the second reflecting surface, which had to be shielded by the light distribution forming light shielding plate, is converted to the downward facing like the reflected light from the first reflecting surface by the third reflecting surface, It can be used for irradiating light and dramatically improves the light flux utilization rate for the light source, and thus has an extremely excellent effect in improving the performance of this type of vehicle lamp, such as expanding the irradiation range or reducing power consumption. It is.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a vehicle headlamp according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is an explanatory diagram showing an example of a light distribution shape of a vehicle headlamp according to the present invention.
FIG. 4 is a cross-sectional view showing another embodiment of a vehicle headlamp according to the present invention.
FIG. 5 is a cross-sectional view showing still another embodiment of a vehicle headlamp according to the present invention.
FIG. 6 is a cross-sectional view showing a conventional example.
FIG. 7 is an explanatory view showing a light distribution shape of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Vehicle headlamp 2 ... Reflective mirrors 21, 23 ... First reflective surfaces 22, 24 ... Second reflective surface 3 ... Light source 4 ... Third reflective surface 5 ... Light shielding for light distribution formation Plate 6 ... Light-shielding plate 7 for forming the second light distribution ... First projection lens 8 ... Second projection lens

Claims (2)

光源と、該光源を第一焦点としてこの光源の略上方に設けられ長軸が略水平な楕円系とした第一反射面と、前記光源の略下方に設けられ長軸が略水平な楕円系とした第二反射面と、前記光源の中心線よりも適宜の下方で且つ前記光源と第二反射面の第二焦点との間に略水平として設けられる第三反射面と、前記第一反射面の第二焦点と、前記第二反射面の第二焦点が前記第三反射面にて反転され結像する位置との、少なくとも一方の近傍に設けられた配光形成用遮光板と、前記第一反射面に対応する第一投影レンズと、前記第二反射面および前記第三反射面に対応する第二投影レンズとから成ることを特徴とする車両用前照灯。A light source, a first reflecting surface that is provided substantially above the light source with the light source as a first focal point and has a major axis that is substantially horizontal, and an elliptic system that is provided substantially below the light source and has a major axis that is substantially horizontal A second reflecting surface, a third reflecting surface provided below the center line of the light source as appropriate and substantially horizontally between the light source and the second focal point of the second reflecting surface, and the first reflecting surface. A light distribution forming light shielding plate provided in the vicinity of at least one of a second focal point of the surface and a position where the second focal point of the second reflecting surface is inverted and imaged by the third reflecting surface; A vehicle headlamp comprising: a first projection lens corresponding to a first reflection surface; and a second projection lens corresponding to the second reflection surface and the third reflection surface. 前記第一反射面と、前記第二反射面とは同一焦点距離とされて一体の反射鏡とされていることを特徴とする請求項１記載の車両用前照灯。  The vehicular headlamp according to claim 1, wherein the first reflecting surface and the second reflecting surface have the same focal length and are formed as an integral reflecting mirror.
JP2002072321A 2002-03-15 2002-03-15 Vehicle headlamp Expired - Fee Related JP4093534B2 (en)

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KR20060029182A (en) 2003-07-09 2006-04-04 추가이 세이야쿠 가부시키가이샤 Compound having anti-hcv activity and process for producing the same
FR2878938B1 (en) * 2004-12-06 2007-01-19 Valeo Vision Sa LIGHTING MODULE FOR MOTOR VEHICLE PROJECTOR
JP4717696B2 (en) * 2006-04-20 2011-07-06 株式会社小糸製作所 Vehicle headlamp lamp unit
JP5519400B2 (en) * 2010-05-20 2014-06-11 株式会社小糸製作所 Lighting fixtures for vehicles
JP5196277B2 (en) * 2010-11-22 2013-05-15 スタンレー電気株式会社 Vehicle headlamp
JP5716576B2 (en) * 2011-06-30 2015-05-13 スタンレー電気株式会社 Vehicle lamp unit
JP5457508B2 (en) * 2012-07-05 2014-04-02 スタンレー電気株式会社 Vehicle headlamp
JP6248525B2 (en) * 2013-10-08 2017-12-20 市光工業株式会社 Lighting fixtures for vehicles
CN105180058A (en) * 2015-09-30 2015-12-23 成都恒坤光电科技有限公司 Headlamp and light reflection, separation and conversion device for headlamp
US11221122B2 (en) * 2020-03-27 2022-01-11 Nichia Corporation Lighting device and headlight having a reflector, lenses and light-shielding members

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