JP4417579B2 - Automotive signal lights - Google Patents

Automotive signal lights Download PDF

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Publication number
JP4417579B2
JP4417579B2 JP2001090920A JP2001090920A JP4417579B2 JP 4417579 B2 JP4417579 B2 JP 4417579B2 JP 2001090920 A JP2001090920 A JP 2001090920A JP 2001090920 A JP2001090920 A JP 2001090920A JP 4417579 B2 JP4417579 B2 JP 4417579B2
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JP
Japan
Prior art keywords
reflecting
reflecting mirror
light source
signal lamp
socket
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
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JP2001090920A
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Japanese (ja)
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JP2002289010A (en
Inventor
利夫 三代川
武昭 岡村
孝 佐藤
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Stanley Electric Co Ltd
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Stanley Electric Co Ltd
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Priority to JP2001090920A priority Critical patent/JP4417579B2/en
Publication of JP2002289010A publication Critical patent/JP2002289010A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、テールランプ、ストップランプ、ターンシグナルランプなど他車や歩行者などに向けて自車の行動、状態を知らせるための自動車用信号灯に関するものである。
【0002】
【従来の技術】
一般にこの種の自動車用信号灯90は、例えば図3に示すように構成されており、この自動車用信号灯90は、例えば内面に回転放物面とした反射面91aが形成された反射鏡91が設けられ、この反射面91aの略焦点位置に光源92を配置し、この光源92からの光を略平行光線として反射し、照射方向に向けて放射するものとされている。
【0003】
そして、前記反射面91aの照射方向側にはこの反射鏡91の前面開口を覆うようにクリアーなアウターレンズ93が設けられ、前記した平行光線を透過させるものとされている。このときアウターレンズ93には例えば魚眼レンズ状としたレンズカット93aが設けられていて、前記平行光線を適宜に拡散することで、自動車用信号灯としての配光特性が得られるものとされている。
【0004】
【発明が解決しようとする課題】
しかしながら、こうした従来の自動車用信号灯90においては、光出射面となるアウターレンズ93の形状に合わせて反射鏡91の回転放物反射面91a以外に平坦な面91bが存在し、この面91bに対しても反射面91aと同様に高反射塗装、アルミ蒸着処理等が施されて非点灯時に信号灯90内に一体感、クリスタル感を出して、見映えを向上させており、図4の垂直断面図に示すように、太陽Sなどによる外光Lが信号灯90内に入射してしまうと、反射面91bで反射した光が反射面91aで反射しその反射光L’がアウターレンズ93を通して照射され、他車の運転者や歩行者などの目Eを照射してしまい、信号灯90の機能色が発光しても認識できないといった問題があった。また、アウターレンズ93の色が機能色の場合、あたかも機能色が発光しているかのように見える所謂疑似点灯の問題を引き起こしてしまい、これらの問題点の解決が課題とされるものとなっている。
【0005】
【課題を解決するための手段】
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、回転放物面等の放物面系の反射面が内面に形成されていて前面に開口を有する反射鏡と、該反射鏡の反射面の略焦点位置に配置された光源と、該光源を前記反射鏡内に保持するソケットと、前記反射鏡の前面開口を覆うクリアーなアウターレンズとから成る自動車用信号灯において、前記反射鏡の反射面は、前記光源を略焦点位置とする第一反射面と、前記ソケットの一部を略焦点位置とする第二反射面とを複数組み合わせて形成し、前記ソケットは、自動車用信号灯としての機能色以外の色に着色されていることを特徴とする自動車用信号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】
次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。
【0007】
図1は、本発明に係る自動車用信号灯1の第一実施形態を示す断面図であり、この自動車用信号灯1は、回転放物面等の放物面系の反射面2aが内面に形成されていて前面に開口を有する反射鏡2と、該反射鏡2の反射面2aの略焦点位置F1にフィラメント(発光中心)3aが配置された光源3と、該光源3を前記反射鏡2内に保持するソケット4と、前記反射鏡2の前面開口を覆うクリアーなアウターレンズ5とによって構成され、光源3からの光を略平行光線として照射方向に反射するものとされている。このとき、アウターレンズ5には例えば魚眼レンズ状としたレンズカット5aが設けられていて、反射面2aによって反射された平行光線を適宜に拡散し、自動車用信号灯としての配光特性が得られるものとされている点までは従来例のものと同様である。
【0008】
ここで本発明においては、前記反射鏡2の反射面は、前記光源3を略焦点位置とする第一反射面2aと、前記ソケット4の一部を略焦点位置とする第二反射面2bとを複数組み合わせて形成したものとされ、さらに、前記ソケット4は、自動車用信号灯1としての機能色以外の色に着色されているものである。
【0009】
自動車用信号灯1としての機能色とは、例えば、テールランプ、ストップランプであれば赤色、ターンシグナルランプであればアンバー色であり、光源3のガラスバルブとしてこうした機能色の着色バルブを用いたり、ガラスバルブに機能色の着色キャップを被せて、光源3点灯時に機能色が発光される構造とされているものである。なお、光源3としては、図示した発光中心3aにフィラメントを有するような電球のほか、LED(発光ダイオード)やネオン管等でも良い。
【0010】
また、ソケット4は、機能色以外の色例えば機能色が赤色であれば青色等に着色された樹脂によって成形されているか、もしくはソケット4の表面に機能色以外の色を塗装したりして形成されるものであり、その一部を略焦点位置F2とする第二反射面2bを前記第一反射面2aと組み合わせて、例えば図示のように交互に反射鏡2内に配置した構成としたものである。
【0011】
反射鏡2の第一反射面2aと第二反射面2bとの組み合わせの例としては、例えば図2に示したように、(a)の縦縞状に交互に配置したり、(b)の市松模様状に交互に配置したり、(c)の同心円状に交互に配置したり、(d)の横縞状に交互に配置したりといった例がある。なお、これらはあくまでも第一反射面2aと第二反射面2bとの組み合わせの例であり、こうした規則的な配置でなくとも適宜に分散配置されたランダムな組み合わせであっても良い。
【0012】
また、ソケット4は光源3を保持するための部材であるため、第二反射面2bの焦点位置F2をソケット4上部の光源3と極めて近い位置に設定すれば、反射鏡2内の反射面はすべて第二反射面2bのみとしても良い。
【0013】
また、前記反射鏡2の第二反射面2bは、自動車用信号灯としての機能色以外の色に着色されたソケット4の一部を略焦点位置とするものとして説明してきたが、自動車用信号灯としての機能色以外の色に直接反射面をコーティングなどにより着色しても良く、この場合には、第一反射面2a上の複数箇所を着色して第二反射面2bとして形成すれば良い。
【0014】
以上のように構成することで、自動車用信号灯1の点灯時においては、光源3からの光を第一反射面2aによって略平行光線として前方に照射して、本来の自動車用信号灯1としての機能色に発光し、非点灯時においては、この機能色以外に着色されたソケット4の一部を焦点位置とする第二反射面2bによって、ソケット4の機能色以外の着色を第二反射面2bに映し出して、前方の歩行者や運転者に認識させるものである。これによって、本来の自動車用信号灯点灯時の機能色と非点灯時に反射面に映し出される機能色以外の色との色変化(コントラスト)によって、他車の運転者や歩行者に対する応答性、認識性が高められるものである。
【0015】
【発明の効果】
以上説明したように本発明によれば、回転放物面等の放物面系の反射面が内面に形成されていて前面に開口を有する反射鏡と、該反射鏡の反射面の略焦点位置に配置された光源と、該光源を前記反射鏡内に保持するソケットと、前記反射鏡の前面開口を覆うクリアーなアウターレンズとから成る自動車用信号灯において、前記反射鏡の反射面は、前記光源を略焦点位置とする第一反射面と、前記ソケットの一部を略焦点位置とする第二反射面とを複数組み合わせて形成し、前記ソケットは、自動車用信号灯としての機能色以外の色に着色されていることを特徴とする自動車用信号灯としたことで、光源点灯時においては、光源からの光を第一反射面によって略平行光線として前方に照射して、本来の自動車用信号灯としての機能色に発光し、光源非点灯時においては、機能色以外に着色されたソケットの一部を焦点位置とする第二反射面によって、ソケットの機能色以外の着色を第二反射面に映し出して、前方の歩行者や運転者に認識させるものであり、これによって、自動車用信号灯点灯時の本来の機能色と非点灯時に反射面に映し出される機能色以外の色との色変化(コントラスト)によって、他車の運転者や歩行者に対する応答性、認識性が高められるといった優れた効果を奏するものである。
【図面の簡単な説明】
【図1】本発明に係る自動車用信号灯の第一実施形態を示す垂直断面図である。
【図2】本発明に係る自動車用信号灯の反射鏡を示す正面図である。
【図3】従来例を示す斜視図である。
【図4】従来例を示す垂直断面図である。
【符号の説明】
1……自動車用信号灯
2……反射鏡
2a……第一反射面
2b……第二反射面
3……光源
3a……フィラメント(発光中心)
4……ソケット
5……アウターレンズ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automotive signal lamp for notifying other vehicles or pedestrians such as a tail lamp, a stop lamp, and a turn signal lamp of the behavior and state of the own vehicle.
[0002]
[Prior art]
In general, this kind of automobile signal lamp 90 is configured as shown in FIG. 3, for example. This automobile signal lamp 90 is provided with a reflecting mirror 91 having a reflecting surface 91a formed as a paraboloid on the inner surface, for example. In addition, a light source 92 is disposed at a substantially focal position of the reflecting surface 91a, and the light from the light source 92 is reflected as a substantially parallel light beam and emitted toward the irradiation direction.
[0003]
A clear outer lens 93 is provided on the irradiation direction side of the reflecting surface 91a so as to cover the front opening of the reflecting mirror 91, and transmits the above-mentioned parallel rays. At this time, the outer lens 93 is provided with a lens cut 93a in the shape of, for example, a fish-eye lens, and light distribution characteristics as an automobile signal lamp can be obtained by appropriately diffusing the parallel rays.
[0004]
[Problems to be solved by the invention]
However, in such a conventional automobile signal lamp 90, there is a flat surface 91b in addition to the rotary parabolic reflecting surface 91a of the reflecting mirror 91 in accordance with the shape of the outer lens 93 which is a light emitting surface, and this surface 91b However, as with the reflective surface 91a, high reflection coating, aluminum vapor deposition, etc. are applied to give a sense of unity and crystal in the signal lamp 90 when not lit, improving the appearance. As shown in FIG. 5, when the external light L from the sun S or the like enters the signal lamp 90, the light reflected by the reflecting surface 91b is reflected by the reflecting surface 91a, and the reflected light L ′ is irradiated through the outer lens 93. There is a problem that the eyes E of drivers and pedestrians of other vehicles are irradiated and the function color of the signal light 90 cannot be recognized even if it emits light. Moreover, when the color of the outer lens 93 is a functional color, it causes a problem of so-called pseudo lighting that looks as if the functional color is emitting light, and it is a problem to solve these problems. Yes.
[0005]
[Means for Solving the Problems]
The present invention provides, as specific means for solving the above-described conventional problems, a reflecting mirror having a paraboloidal system such as a rotating paraboloid surface formed on the inner surface and having an opening on the front surface, and the reflecting mirror. In the automotive signal lamp, comprising: a light source disposed at a substantially focal position of the reflecting surface; a socket that holds the light source in the reflecting mirror; and a clear outer lens that covers a front opening of the reflecting mirror. The reflective surface is formed by combining a plurality of first reflective surfaces having the light source as a substantially focal position and a second reflective surface having a portion of the socket as a substantially focal position, and the socket serves as an automotive signal lamp. The problem is solved by providing an automotive signal light characterized by being colored in a color other than the functional color.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail based on embodiments shown in the drawings.
[0007]
FIG. 1 is a cross-sectional view showing a first embodiment of an automotive signal lamp 1 according to the present invention. The automotive signal lamp 1 has a parabolic reflecting surface 2a such as a rotating parabolic surface formed on the inner surface. A reflecting mirror 2 having an opening on the front surface, a light source 3 having a filament (emission center) 3a disposed at a substantially focal position F1 of the reflecting surface 2a of the reflecting mirror 2, and the light source 3 in the reflecting mirror 2 The holding socket 4 and a clear outer lens 5 covering the front opening of the reflecting mirror 2 are configured to reflect the light from the light source 3 as a substantially parallel light beam in the irradiation direction. At this time, the outer lens 5 is provided with a lens cut 5a in the shape of, for example, a fish-eye lens, and the parallel light beam reflected by the reflecting surface 2a is appropriately diffused to obtain a light distribution characteristic as an automobile signal lamp. The points up to this point are the same as those of the conventional example.
[0008]
Here, in the present invention, the reflecting surface of the reflecting mirror 2 includes a first reflecting surface 2a having the light source 3 as a substantially focal position, and a second reflecting surface 2b having a portion of the socket 4 as a substantially focal position. In addition, the socket 4 is colored in a color other than the functional color of the automobile signal lamp 1.
[0009]
The functional color as the signal lamp 1 for an automobile is, for example, red for a tail lamp or a stop lamp, and amber for a turn signal lamp. The bulb is covered with a functional color coloring cap so that the functional color is emitted when the light source 3 is turned on. Note that the light source 3 may be an LED (light emitting diode), a neon tube, or the like, in addition to a light bulb having a filament at the illustrated light emission center 3a.
[0010]
Further, the socket 4 is formed of a color other than the functional color, for example, a resin colored blue if the functional color is red, or is formed by coating the surface of the socket 4 with a color other than the functional color. The second reflecting surface 2b having a part of which is substantially the focal position F2 is combined with the first reflecting surface 2a, for example, and arranged in the reflecting mirror 2 alternately as shown in the figure. It is.
[0011]
As an example of the combination of the first reflecting surface 2a and the second reflecting surface 2b of the reflecting mirror 2, as shown in FIG. 2, for example, they are alternately arranged in the vertical stripe shape of (a), or the checkered pattern of (b) There are examples such as alternately arranged in a pattern, alternately arranged in concentric circles in (c), and alternately arranged in horizontal stripes in (d). These are merely examples of the combination of the first reflection surface 2a and the second reflection surface 2b, and may be a random combination that is appropriately distributed and arranged instead of such a regular arrangement.
[0012]
Further, since the socket 4 is a member for holding the light source 3, if the focal position F2 of the second reflecting surface 2b is set to a position very close to the light source 3 above the socket 4, the reflecting surface in the reflecting mirror 2 is All may be only the second reflecting surface 2b.
[0013]
In addition, the second reflecting surface 2b of the reflecting mirror 2 has been described as having a part of the socket 4 colored in a color other than the functional color as an automotive signal lamp as a substantially focal position. The reflective surface may be directly colored to a color other than the functional color by coating or the like. In this case, a plurality of locations on the first reflective surface 2a may be colored to form the second reflective surface 2b.
[0014]
By configuring as described above, when the automotive signal lamp 1 is turned on, the light from the light source 3 is irradiated forward as a substantially parallel light beam by the first reflecting surface 2a, and functions as the original automotive signal lamp 1. When the light is emitted in a non-lighting state, the second reflective surface 2b having a part of the socket 4 colored other than the functional color as a focal position causes the second reflective surface 2b to color the socket 4 other than the functional color. It is displayed on the screen to make pedestrians and drivers ahead recognize it. As a result, responsiveness and recognizability to drivers and pedestrians of other vehicles due to the color change (contrast) between the original functional color when the automotive signal lamp is lit and the color other than the functional color projected on the reflective surface when not illuminated. Can be enhanced.
[0015]
【The invention's effect】
As described above, according to the present invention, the reflecting surface of the paraboloidal system such as the rotating paraboloid is formed on the inner surface and has an opening on the front surface, and the substantially focal position of the reflecting surface of the reflecting mirror. A signal light for an automobile comprising a light source disposed in the light source, a socket for holding the light source in the reflecting mirror, and a clear outer lens covering a front opening of the reflecting mirror, wherein the reflecting surface of the reflecting mirror is the light source Is formed by combining a plurality of first reflective surfaces having a substantially focal position and a second reflective surface having a portion of the socket having a substantially focal position, and the socket has a color other than a functional color as an automotive signal lamp. When the light source is turned on, the light from the light source is irradiated forward as a substantially parallel light beam by the first reflecting surface when the light source is turned on. Emits functional color, When the source is not lit, the second reflective surface with the focal position at a part of the socket colored other than the functional color reflects the color other than the functional color of the socket on the second reflective surface, The driver recognizes the driver, and this allows the driver of other vehicles to change the color of the original function color when the vehicle signal light is lit and the color other than the function color displayed on the reflective surface when the signal light is not lit (contrast). And has excellent effects such as improved responsiveness and recognition to pedestrians.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view showing a first embodiment of an automotive signal lamp according to the present invention.
FIG. 2 is a front view showing a reflector of an automotive signal lamp according to the present invention.
FIG. 3 is a perspective view showing a conventional example.
FIG. 4 is a vertical sectional view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Automotive signal light 2 ... Reflector 2a ... 1st reflective surface 2b ... 2nd reflective surface 3 ... Light source 3a ... Filament (light emission center)
4 …… Socket 5 …… Outer lens

Claims (3)

回転放物面等の放物面系の反射面が内面に形成されていて前面に開口を有する反射鏡と、該反射鏡の反射面の略焦点位置に配置された光源と、該光源を前記反射鏡内に保持するソケットと、前記反射鏡の前面開口を覆うクリアーなアウターレンズとから成る自動車用信号灯において、前記反射鏡の反射面は、前記光源を略焦点位置とする第一反射面と、前記ソケットの一部を略焦点位置とする第二反射面とを複数組み合わせて形成し、前記ソケットは、自動車用信号灯としての機能色以外の色に着色されていることを特徴とする自動車用信号灯。A reflecting mirror having a paraboloidal reflecting surface such as a rotating paraboloid formed on the inner surface and having an opening on the front surface, a light source disposed at a substantially focal position of the reflecting surface of the reflecting mirror, and the light source In an automotive signal lamp comprising a socket held in the reflecting mirror and a clear outer lens covering the front opening of the reflecting mirror, the reflecting surface of the reflecting mirror includes a first reflecting surface having the light source as a substantially focal position and And a plurality of second reflecting surfaces having a part of the socket as a substantially focal position, and the socket is colored in a color other than a functional color as a signal lamp for a vehicle. Signal light. 回転放物面等の放物面系の反射面が内面に形成されていて前面に開口を有する反射鏡と、該反射鏡の反射面の略焦点位置に配置された光源と、該光源を前記反射鏡内に保持するソケットと、前記反射鏡の前面開口を覆うクリアーなアウターレンズとから成る自動車用信号灯において、前記反射鏡の反射面は、前記ソケット上部の前記光源に近い位置を略焦点位置とする反射面として形成し、前記ソケットは、自動車用信号灯としての機能色以外の色に着色されていることを特徴とする自動車用信号灯。A reflecting mirror having a paraboloidal reflecting surface such as a rotating paraboloid formed on the inner surface and having an opening on the front surface, a light source disposed at a substantially focal position of the reflecting surface of the reflecting mirror, and the light source In an automotive signal lamp comprising a socket held in a reflecting mirror and a clear outer lens that covers the front opening of the reflecting mirror, the reflecting surface of the reflecting mirror is located near the light source at the upper part of the socket. An automotive signal lamp characterized in that the socket is colored in a color other than a functional color as an automotive signal lamp. 回転放物面等の放物面系の反射面が内面に形成されていて前面に開口を有する反射鏡と、該反射鏡の反射面の略焦点位置に配置された光源と、該光源を前記反射鏡内に保持するソケットと、前記反射鏡の前面開口を覆うクリアーなアウターレンズとから成る自動車用信号灯において、前記反射鏡の反射面は、前記光源を略焦点位置とする第一反射面と、自動車用信号灯としての機能色以外の色に着色されている第二反射面とを複数組み合わせて形成されていることを特徴とする自動車用信号灯。A reflecting mirror having a paraboloidal reflecting surface such as a rotating paraboloid formed on the inner surface and having an opening on the front surface, a light source disposed at a substantially focal position of the reflecting surface of the reflecting mirror, and the light source In an automotive signal lamp comprising a socket held in the reflecting mirror and a clear outer lens covering the front opening of the reflecting mirror, the reflecting surface of the reflecting mirror includes a first reflecting surface having the light source as a substantially focal position and A signal lamp for automobiles, which is formed by combining a plurality of second reflecting surfaces colored in colors other than functional colors as a signal lamp for automobiles.
JP2001090920A 2001-03-27 2001-03-27 Automotive signal lights Expired - Fee Related JP4417579B2 (en)

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