JP4556140B2 - Vehicle lighting - Google Patents

Vehicle lighting Download PDF

Info

Publication number
JP4556140B2
JP4556140B2 JP2006331206A JP2006331206A JP4556140B2 JP 4556140 B2 JP4556140 B2 JP 4556140B2 JP 2006331206 A JP2006331206 A JP 2006331206A JP 2006331206 A JP2006331206 A JP 2006331206A JP 4556140 B2 JP4556140 B2 JP 4556140B2
Authority
JP
Japan
Prior art keywords
light
light emitting
lamp
emitting elements
emitting end
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
JP2006331206A
Other languages
Japanese (ja)
Other versions
JP2008146948A (en
Inventor
徹孔 篠塚
太一 恵谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ichikoh Industries Ltd
Original Assignee
Ichikoh Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ichikoh Industries Ltd filed Critical Ichikoh Industries Ltd
Priority to JP2006331206A priority Critical patent/JP4556140B2/en
Publication of JP2008146948A publication Critical patent/JP2008146948A/en
Application granted granted Critical
Publication of JP4556140B2 publication Critical patent/JP4556140B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

本発明は、自車両の存在、状態等を報知するためのテールランプ、ストップランプ等のリアコンビネーションランプ等の車両用灯具に関する。   The present invention relates to a vehicular lamp such as a rear combination lamp such as a tail lamp or a stop lamp for informing the presence, state, etc. of the host vehicle.

車両用灯具のとして、車両用リアコンビネーションランプがある。この車両用リアコンビネーションランプは、テールランプ、ストップランプ等で構成されており、自車両の存在、状態等を報知する等の機能を果たすので、安全性等の観点から、その視認性がより高いことが好ましい。
この車両用リアコンビネーションランプは、一般的に、点灯時の見え方が平面的に見えるが、例えば、点灯時の見え方を立体的にすると、点灯状態をより目立たせることができ、視認性を高めることができる。
例えば、特許文献１は、光源としての白熱電球に加えて、ＬＥＤ(発光ダイオード：Ｌｉｇｈｔ Ｅｍｉｔｔｉｎｇ
Ｄｉｏｄｅ）、このＬＥＤの光を導光する導光体等を用いることにより、点灯時の見え方を立体的にする技術を開示している。
特開平２００２−２１６５１０号公報 As a vehicular lamp, there is a vehicular rear combination lamp. This vehicle rear combination lamp is composed of a tail lamp, a stop lamp, etc., and performs functions such as notification of the presence, state, etc. of the host vehicle, so that its visibility is higher from the viewpoint of safety etc. Is preferred.
In general, the rear combination lamp for a vehicle can be seen in a planar manner when it is turned on. Can be increased.
For example, Patent Document 1 discloses an LED (Light Emitting Diode: Light Emitting) in addition to an incandescent light bulb as a light source.
Diode) discloses a technique for making a three-dimensional appearance at the time of lighting by using a light guide or the like for guiding the light of the LED.
Japanese Patent Laid-Open No. 2002-216510

ところで、ＬＥＤを車両用灯具の主光源として用いることにより、車両用灯具を小型化することができる。
このＬＥＤを主光源として用いた車両用灯具では、製造コスト等の観点からは、複数のＬＥＤを共通の基板上に配列することが好ましい。
しかしながら、複数のＬＥＤを共通の基板上に配列すると、点灯時の見え方が平面的であるため、ＬＥＤを主光源とする車両用灯具の視認性をより高める必要があった。 By the way, by using the LED as the main light source of the vehicular lamp, the vehicular lamp can be reduced in size.
In the vehicular lamp using this LED as a main light source, it is preferable to arrange a plurality of LEDs on a common substrate from the viewpoint of manufacturing cost and the like.
However, when a plurality of LEDs are arranged on a common substrate, the appearance at the time of lighting is flat, and thus it is necessary to further improve the visibility of a vehicular lamp that uses LEDs as a main light source.

本発明は、上記の事情に鑑みて成されたものであり、その目的とするところは、複数の発光素子を主光源として用いつつ視認性が向上した車両用灯具を提供することにある。   The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicular lamp that has improved visibility while using a plurality of light emitting elements as a main light source.

本発明に係る車両用灯具は、共通の基板上に環状に配列された複数の発光素子と、前記発光素子からの光を導光して光出射端面から光を出射させる導光体とを灯室内に備える車両用灯具であって、
前記導光体は、環状に配列された複数の前記発光素子の中心軸と同心状に配置された複数の筒状部と、複数の前記発光素子からの光を複数の前記筒状部へ導く入光部とを備え、
複数の前記筒状部の前記光出射端面は、それぞれ、前記中心軸の方向に対して異なる位置に配置されていることを特徴としている。
この構成によれば、各発光素子からの光は入光部に入射されそれぞれの筒状部に導かれ、環状の光出射端面から発光する。環状の光出射端面は、筒状部の中心軸の方向、すなわち光の出射方向に対して互いに異なる位置に配置されているので、車両用灯具の発光状態は、観察者には立体的な光として見える。これにより、車両用灯具の視認性が高まる。 A vehicle lamp according to the present invention includes a plurality of light emitting elements arranged in a ring on a common substrate, and a light guide that guides light from the light emitting elements and emits light from a light emitting end face. A vehicular lamp provided indoors,
The light guide leads a plurality of cylindrical portions arranged in the central axis and concentric plurality of light emitting elements arranged in a ring, the light from the plurality of light emitting elements to a plurality of the tubular portion With a light entrance part,
The light emitting end surfaces of the plurality of the tubular portion, respectively, is characterized by being disposed at different positions with respect to the direction of the central axis.
According to this configuration, light from each light emitting element is incident on the light incident portion, is guided to each cylindrical portion, and is emitted from the annular light emitting end face. Since the annular light emitting end faces are arranged at positions different from each other with respect to the direction of the central axis of the cylindrical portion, that is, the light emitting direction, the light emission state of the vehicle lamp is a three-dimensional light to the observer. Looks as. This increases the visibility of the vehicular lamp.

上記構成において、入光部は、発光素子から入射された光を反射する第１の反射面と、反射面からの光を筒状部の光出射端面へ向けて反射する第２の反射面とを有し、第１の反射面は、放物系曲面からなる、構成を採用できる。
この構成によれば、第１の反射面を放物系曲面にすることにより、発光素子から入射する光を効率良く筒状部へ導くことができ、筒状部から発光する光の光量を確保することができる。 In the above configuration, the light incident portion includes a first reflection surface that reflects light incident from the light emitting element, and a second reflection surface that reflects light from the reflection surface toward the light emitting end surface of the cylindrical portion. The first reflecting surface can be configured by a parabolic curved surface.
According to this configuration, by making the first reflecting surface a parabolic curved surface, the light incident from the light emitting element can be efficiently guided to the cylindrical portion, and the amount of light emitted from the cylindrical portion is ensured. can do.

上記構成において、発光素子は、共通の基板上に環状に配列されており、入光部は、発光素子の主光線をその出射方向へ透過しつつ発光素子からの光の一部を複数の筒状部へ導き、複数の筒状部は、環状に配列された主光線の内側と外側とにおいて環状の光出射端面から発光させる、構成を採用できる。
この構成によれば、環状に配列された主光線の内側と外側とにおいて、互いに異なる位置から環状に発光させることができるので、環状に配列された発光素子の主光線を立体的な光の中で浮かび上がらせて見せることができる。 In the above configuration, the light emitting elements are arranged in a ring shape on a common substrate, and the light incident portion transmits a chief ray of the light emitting elements in the emission direction, and a part of the light from the light emitting elements is a plurality of tubes. The structure which guide | induces to a shape part and makes a some cylindrical part light-emit from the cyclic | annular light-projection end surface in the inner side and the outer side of the principal ray arranged in cyclic | annular form is employable.
According to this configuration, it is possible to emit light in a ring shape from different positions on the inside and outside of the chief rays arranged in a ring shape. You can show it up.

本発明によれば、複数の発光素子を主光源として用いつつ視認性が向上した車両用灯具が得られる。   According to the present invention, a vehicular lamp having improved visibility while using a plurality of light emitting elements as a main light source can be obtained.

以下、本発明の最良の実施形態について、添付図面を参照しつつ説明する。
図１は本発明の一実施形態に係る車両用リアコンビネーションランプの正面図、図２は、図１に示すストップランプの正面図及び断面図である。
車両用リアコンビネーションランプ１００は、図１に示すように、ブレーキングを知らせるストップランプと後続車に自車両の存在を知らせるテールランプとの両者の役割を兼ねるランプ１００Ａ，１００Ｂを備えている。このランプ１００Ａ，１００Ｂは大きさが異なるが同一の構成であるため、以下では、ランプ１００Ａについてだけ説明する。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, exemplary embodiments of the invention will be described with reference to the accompanying drawings.
FIG. 1 is a front view of a vehicle rear combination lamp according to an embodiment of the present invention, and FIG. 2 is a front view and a cross-sectional view of the stop lamp shown in FIG.
As shown in FIG. 1, the vehicle rear combination lamp 100 includes lamps 100 </ b> A and 100 </ b> B that serve as both a stop lamp that notifies braking and a tail lamp that notifies the following vehicle of the presence of the host vehicle. Since the lamps 100A and 100B have the same configuration although having different sizes, only the lamp 100A will be described below.

ランプ１００Ａは、図２に示すように、車両用リアコンビネーションランプ１００の灯室内に設けられており、導光体１０、インナーレンズ６０、発光素子としての複数のＬＥＤ（発光ダイオード）７０、このＬＥＤ７０を搭載する基板８０等から構成されている。   As shown in FIG. 2, the lamp 100A is provided in the lamp chamber of the vehicle rear combination lamp 100, and includes a light guide 10, an inner lens 60, a plurality of LEDs (light emitting diodes) 70 as light emitting elements, and the LEDs 70. It is comprised from the board | substrate 80 etc. which mounts.

車両用リアコンビネーションランプ１００の灯室は、導光体１０、光源としてのＬＥＤ７０、基板７０等の車両用灯具の構成要素を収容するランプボディ１０１と、このランプボディ１０１の前面側を覆う透光性の前面カバー１０２とにより画定されているが、詳細な構造については説明を省略する。   The lamp chamber of the vehicle rear combination lamp 100 includes a light guide 10, an LED 70 as a light source, a lamp body 101 that houses components of a vehicle lamp such as a substrate 70, and a translucent covering the front side of the lamp body 101. However, the detailed structure is not described here.

導光体１０は、筒状部としての内側筒状部２０及び外側筒状部３０、入光部４０等からなり、アクリル樹脂等の透明材料により一体的に形成されている。   The light guide 10 includes an inner cylindrical portion 20 and an outer cylindrical portion 30 as a cylindrical portion, a light incident portion 40, and the like, and is integrally formed of a transparent material such as acrylic resin.

内側筒状部２０は、円筒状に形成されると共に先端部に環状の光出射端面２１を有しており、入光部４０から導かれた光線Ｌ１を光出射端面２１から発光させる。光出射端面２１は、光線Ｌ１を均一に発光させるためのシボ面に加工されている。   The inner cylindrical portion 20 is formed in a cylindrical shape and has an annular light emitting end surface 21 at the tip portion, and causes the light beam L1 guided from the light incident portion 40 to emit light from the light emitting end surface 21. The light emitting end face 21 is processed into a textured surface for uniformly emitting the light beam L1.

外側筒状部３０は、円筒状に形成され、かつ、内側筒状部２０の外側に同心状に配置されていると共に、先端部に環状の光出射端面３１を備えている。この外側筒状部３０は、その光出射端面３１の中心軸線方向の位置が内側筒状部２０の光出射端面２１の位置よりも後方に位置している。すなわち、内側筒状部２０は、外側筒状部３０よりも高く形成されている。尚、光出射端面３１は、光線Ｌ２を均一に発光させるためにシボ面に加工されている。   The outer cylindrical portion 30 is formed in a cylindrical shape, is concentrically disposed outside the inner cylindrical portion 20, and includes an annular light emitting end surface 31 at the distal end portion. The outer cylindrical portion 30 has a position in the central axis direction of the light emitting end surface 31 located behind the position of the light emitting end surface 21 of the inner cylindrical portion 20. That is, the inner cylindrical portion 20 is formed higher than the outer cylindrical portion 30. Note that the light emitting end face 31 is processed into a textured surface in order to uniformly emit the light beam L2.

入光部４０は、環状に形成されて内側筒状部２０の下端部と外側筒状部３０の下端部とを連結している。この入光部４０は、ＬＥＤ７０と対向する位置に環状の透光部４１を備えており、この透光部４１は、ＬＥＤ７０から出射される光軸方向の主光線ＬＭを透過する。   The light incident portion 40 is formed in an annular shape, and connects the lower end portion of the inner cylindrical portion 20 and the lower end portion of the outer cylindrical portion 30. The light incident portion 40 includes an annular light transmitting portion 41 at a position facing the LED 70, and the light transmitting portion 41 transmits the principal ray LM in the optical axis direction emitted from the LED 70.

また、入光部４０は、ＬＥＤ７０の出射する光線のうち、透光部４１に入射せずに外側に拡がる光線Ｌ１，Ｌ２を反射する第１の反射面４２Ａ，４２Ｂと、第１の反射面４２Ａ，４２Ｂでそれぞれ反射した光線Ｌ１，Ｌ２を内側筒状部２０及び外側筒状部３０の光出射端面２１，３１へ向けてそれぞれ反射する第２の反射面４３Ａ，４３Ｂとを備えている。
第１の反射面４２Ａ，４２Ｂは、それぞれ放物系曲面で構成されており、光線Ｌ１，Ｌ２が拡散するのを防いで効率良く第２の反射面４３Ａ，４３Ｂに向けて光線Ｌ１，Ｌ２を反射する。
第２の反射面４３Ａ，４３Ｂは、光線Ｌ１，Ｌ２を全反射するように形成されている。 The light incident part 40 includes first reflecting surfaces 42A and 42B that reflect the light rays L1 and L2 that are not incident on the light transmitting part 41 but spread outside the light rays emitted from the LED 70, and the first reflecting surface. There are provided second reflecting surfaces 43A and 43B that respectively reflect the light beams L1 and L2 reflected by 42A and 42B toward the light emitting end surfaces 21 and 31 of the inner cylindrical portion 20 and the outer cylindrical portion 30, respectively.
The first reflecting surfaces 42A and 42B are each formed of a parabolic curved surface, and prevent the light beams L1 and L2 from diffusing and efficiently direct the light beams L1 and L2 toward the second reflecting surfaces 43A and 43B. reflect.
The second reflecting surfaces 43A and 43B are formed so as to totally reflect the light rays L1 and L2.

インナーレンズ６０は、樹脂等の光透過性の材料で環状に形成されており、内側筒状部２０の外周面と外側筒状部３０の内周面との間に形成される環状の間隙に嵌合している。このインナーレンズ６０は、上記した透光部４１を透過した主光線ＬＭが入射する位置に円筒状のレンズ部６１を備えており、このレンズ部６１に入射した主光線ＬＭは、先端部の環状の光出射端面６２から発光される。
光出射端面６２は、中心軸線方向において、内側筒状部２０の光出射端面２１と外側筒状部３０の光出射端面３１との間に配置されている。
この光出射端面６２は、平坦面で構成されているが、光出射端面６２をプリズム形状とすることも可能である。光出射端面６２をプリズム形状とすることにより、主光線ＬＭの数が実際のＬＥＤ７０の数よりも多数に見せて視認性を高めることが可能となる。 The inner lens 60 is formed in an annular shape with a light transmissive material such as resin, and is formed in an annular gap formed between the outer peripheral surface of the inner cylindrical portion 20 and the inner peripheral surface of the outer cylindrical portion 30. It is mated. The inner lens 60 includes a cylindrical lens portion 61 at a position where the main light beam LM transmitted through the light transmitting portion 41 is incident. The main light beam LM incident on the lens portion 61 has an annular shape at the tip. The light is emitted from the light emitting end face 62 of the light.
The light emitting end face 62 is disposed between the light emitting end face 21 of the inner cylindrical portion 20 and the light emitting end face 31 of the outer cylindrical portion 30 in the central axis direction.
The light emitting end face 62 is a flat surface, but the light emitting end face 62 may be prism-shaped. By making the light emission end face 62 into a prism shape, it is possible to increase the visibility by making the number of the principal rays LM appear larger than the actual number of the LEDs 70.

ＬＥＤ７０は、そのリード部が基板８０を貫通して固定されており、インナーレンズ６０の環状のレンズ部６１に対向するように基板８０上に環状に配列されている。すなわち、ＬＥＤ７０は、所定の半径の円周に沿って等間隔に配列されている。
ＬＥＤ７０には、例えば、赤色発光ダイオードを用いることができる。 The LED 70 has a lead portion fixed through the substrate 80, and is arranged in an annular shape on the substrate 80 so as to face the annular lens portion 61 of the inner lens 60. That is, the LEDs 70 are arranged at equal intervals along the circumference of a predetermined radius.
For example, a red light emitting diode can be used for the LED 70.

基板８０は、例えば、エポキシ樹脂等から形成された平板状の基板に配線がパターニングされたプリント配線板から構成され、それぞれのＬＥＤ７０を支持すると共にＬＥＤ７０へ電力を供給する。   The board | substrate 80 is comprised from the printed wiring board by which wiring was patterned on the flat board | substrate formed from the epoxy resin etc., for example, and supports each LED70 and supplies electric power to LED70.

次に、上記構成の車両用リアコンビネーションランプ１００のランプ１００Ａの発光動作について図３を参照して説明する。尚、図３は、ランプ１００Ａを前面カバー１０２側から見た図である。
基板８０に環状に配列されたＬＥＤ７０を発光させると、導光体１０の透光部４１を透過した主光線ＬＭは、インナーレンズ６０の光出射端面６２から発光する。これにより、ランプ１００Ａを前面カバー１０２側から見ると、図３に示すように、所定の円周に沿って点在するＬＥＤ７０のスポット状の主光線ＬＭが点灯して見える。 Next, the light emission operation of the lamp 100A of the vehicle rear combination lamp 100 configured as described above will be described with reference to FIG. FIG. 3 is a view of the lamp 100A as viewed from the front cover 102 side.
When the LEDs 70 arranged in a ring on the substrate 80 are caused to emit light, the principal ray LM transmitted through the light transmitting portion 41 of the light guide 10 emits light from the light emitting end face 62 of the inner lens 60. As a result, when the lamp 100A is viewed from the front cover 102 side, as shown in FIG. 3, spot-like principal rays LM of the LEDs 70 scattered along a predetermined circumference appear to be lit.

ＬＥＤ７０から出射された光のうち、導光体１０に入射してその内側筒状部２０及び外側筒状部３０に導光された光線Ｌ１，Ｌ２は、内側筒状部２０及び外側筒状部３０の光出射端面２１，３１からそれぞれ発光する。光線Ｌ１，Ｌ２は、導光体１０の入光部４０に拡がって入射すると共に、シボ面加工された光出射端面２１，３１において拡散されるので、略均一に発光して見える。
このとき、内側筒状部２０の光出射端面２１と及び外側筒状部３０の光出射端面３１の位置が異なるため、前面カバー１０２側から観察される光は立体的に見える。このため、環状に並ぶスポット状の主光線ＬＭは、立体的に見える光の中で浮いているように見える。この結果、ランプ１００Ａ、ランプ１００Ｂの点灯時の視認性を高めることができる。 Of the light emitted from the LED 70, the light beams L1 and L2 that are incident on the light guide 10 and guided to the inner cylindrical portion 20 and the outer cylindrical portion 30 are the inner cylindrical portion 20 and the outer cylindrical portion. Light is emitted from 30 light emitting end faces 21, 31 respectively. The light beams L1 and L2 spread and enter the light incident portion 40 of the light guide 10, and are diffused on the light emitting end surfaces 21 and 31 processed with a textured surface, so that they appear to emit light substantially uniformly.
At this time, since the positions of the light emitting end face 21 of the inner cylindrical portion 20 and the light emitting end face 31 of the outer cylindrical portion 30 are different, the light observed from the front cover 102 side looks three-dimensional. For this reason, the spot-shaped chief rays LM arranged in a ring shape appear to float in the light that appears three-dimensionally. As a result, the visibility when the lamp 100A and the lamp 100B are turned on can be improved.

上記実施形態では、発光素子としてＬＥＤを用いた場合について説明したが、これに限定されるわけではなく、他の種類の半導体発光素子を用いることも可能である。   In the above embodiment, the case where an LED is used as a light emitting element has been described. However, the present invention is not limited to this, and other types of semiconductor light emitting elements can also be used.

上記実施形態では、筒状部を円筒状にした場合について説明したが、これに限定されるわけではなく、楕円筒状、四角等の多角形状の筒状とすることも可能である。   In the above-described embodiment, the case where the cylindrical portion is cylindrical has been described. However, the present invention is not limited to this, and it may be an elliptical cylindrical shape or a polygonal cylindrical shape such as a square shape.

上記実施形態では、車両用リアコンビネーションランプ１００のランプ１００Ａ，ランプ１００Ｂに本発明を適用する場合について説明したが、これに限定されるわけではなく、単機能のテールランプ又はストップランプ、いわゆるクリアランスランプ、デイタイムランプ、フロント／リアのターンシグナルランプ、サイドマーカーランプ、ドアミラーに内臓されるサイドターンシグナルランプ等にも適用できる。   In the above embodiment, the case where the present invention is applied to the lamp 100A and the lamp 100B of the vehicle rear combination lamp 100 has been described. However, the present invention is not limited to this, and a single-function tail lamp or stop lamp, so-called clearance lamp, It can also be applied to daytime lamps, front / rear turn signal lamps, side marker lamps, side turn signal lamps built in door mirrors, etc.

上記実施形態では、内側筒状部２０の光出射端面２１を外側筒状部３０の光出射端面３１よりも前方に配置する構成としたが、これに限定されるわけではなく、光出射端面３１を光出射端面２１よりも後方に配置する構成としてもよい。   In the above embodiment, the light emitting end surface 21 of the inner cylindrical portion 20 is arranged in front of the light emitting end surface 31 of the outer cylindrical portion 30, but the present invention is not limited to this, and the light emitting end surface 31 is not limited thereto. May be arranged behind the light emitting end face 21.

上記実施形態では、筒状部として内側筒状部２０と外側筒状部３０とを備える場合について説明したが、これに限定されるわけではなく、さらに多くの筒状部を備える構成とすることも可能である。   In the embodiment described above, the case where the inner cylindrical portion 20 and the outer cylindrical portion 30 are provided as the cylindrical portions has been described. However, the present invention is not limited to this, and a configuration including more cylindrical portions is provided. Is also possible.

上記実施形態では、インナーレンズ６０のレンズ部６１を円筒状に形成したが、これに限定されるわけではなく、例えば、半球状に形成するなど、種々の形態に変更できる。   In the above-described embodiment, the lens portion 61 of the inner lens 60 is formed in a cylindrical shape, but is not limited thereto, and can be changed to various forms such as, for example, a hemispherical shape.

本発明の一実施形態に係る車両用リアコンビネーションランプの全体を示す正面図である。It is a front view showing the whole rear combination lamp for vehicles concerning one embodiment of the present invention. 図１に示すランプを示す図であって、（Ａ）は正面図、（Ｂ）は（Ａ）のＡ−Ａ線方向の断面図である。It is a figure which shows the lamp | ramp shown in FIG. 1, Comprising: (A) is a front view, (B) is sectional drawing of the AA line direction of (A). 図２に示すランプの発光状態を説明するための図である。It is a figure for demonstrating the light emission state of the lamp | ramp shown in FIG.

符号の説明Explanation of symbols

１０…導光体
２０…内側筒状部（筒状部）
２１…光出射端面
３０…外側筒状部（筒状部）
３１…光出射端面
４０…入光部
４１…透光部
４２Ａ，４２Ｂ…第１の反射面
４３Ａ，４３Ｂ…第２の反射面
６０…インナーレンズ
６１…レンズ部
６２…光出射端面
７０…ＬＥＤ（発光素子）
８０…基板
１００…車両用リアコンビネーションランプ
１００Ａ，１００Ｂ…ランプ
１０１…ランプボディ
１０２…前面カバー
ＬＭ…主光線
Ｌ１，Ｌ２…光線 10 ... Light guide 20 ... Inner cylindrical part (cylindrical part)
21 ... Light emitting end face 30 ... Outer cylindrical part (cylindrical part)
31 ... Light emitting end face 40 ... Light incident part 41 ... Translucent part 42A, 42B ... First reflecting surface 43A, 43B ... Second reflecting surface 60 ... Inner lens 61 ... Lens part 62 ... Light emitting end face 70 ... LED ( (Light emitting element)
80 ... Substrate 100 ... Vehicle rear combination lamps 100A, 100B ... Lamp 101 ... Lamp body 102 ... Front cover LM ... Main rays L1, L2 ... Rays

Claims (3)

共通の基板上に環状に配列された複数の発光素子と、前記発光素子からの光を導光して光出射端面から光を出射させる導光体とを灯室内に備える車両用灯具であって、
前記導光体は、環状に配列された複数の前記発光素子の中心軸と同心状に配置された複数の筒状部と、複数の前記発光素子からの光を複数の前記筒状部へ導く入光部とを備え、
複数の前記筒状部の前記光出射端面は、それぞれ、前記中心軸の方向に対して異なる位置に配置されていることを特徴とする車両用灯具。 A vehicular lamp comprising a plurality of light emitting elements arranged in a ring on a common substrate, and a light guide that guides light from the light emitting elements and emits light from a light emitting end surface. ,
The light guide leads a plurality of cylindrical portions arranged in the central axis and concentric plurality of light emitting elements arranged in a ring, the light from the plurality of light emitting elements to a plurality of the tubular portion With a light entrance part,
The vehicular lamp , wherein the light emitting end surfaces of the plurality of cylindrical portions are respectively arranged at different positions with respect to the direction of the central axis . 前記入光部は、複数の前記発光素子から入射された光を反射する第１の反射面と、前記第１の反射面からの光を複数の前記筒状部の前記光出射端面へ向けて反射する第２の反射面とを有し、
前記第１の反射面は、放物系曲面からなることを特徴とする請求項１に記載の車両用灯具。 Light incident portion, toward the first reflecting surface for reflecting light incident from the plurality of light emitting elements, the light from the first reflecting surface to a plurality of the tubular portion wherein the beam emitting end face of A second reflecting surface that reflects,
The vehicular lamp according to claim 1, wherein the first reflecting surface is a parabolic curved surface. 前記入光部は、複数の前記発光素子のそれぞれの光が前記中心軸の方向に沿って透過する透光部を有し、
複数の前記筒状部は、前記透光部の内側と外側とにそれぞれ配置されていることを特徴とする請求項１又は２に記載の車両用灯具。 The light incident portion includes a light transmitting portion that transmits light of each of the plurality of light emitting elements along the direction of the central axis ,
The vehicular lamp according to claim 1 or 2, wherein the plurality of cylindrical portions are respectively disposed on an inner side and an outer side of the light transmitting portion .
JP2006331206A 2006-12-07 2006-12-07 Vehicle lighting Expired - Fee Related JP4556140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006331206A JP4556140B2 (en) 2006-12-07 2006-12-07 Vehicle lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006331206A JP4556140B2 (en) 2006-12-07 2006-12-07 Vehicle lighting

Publications (2)

Publication Number Publication Date
JP2008146948A JP2008146948A (en) 2008-06-26
JP4556140B2 true JP4556140B2 (en) 2010-10-06

Family

ID=39606880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006331206A Expired - Fee Related JP4556140B2 (en) 2006-12-07 2006-12-07 Vehicle lighting

Country Status (1)

Country Link
JP (1) JP4556140B2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008166072A (en) * 2006-12-27 2008-07-17 Ichikoh Ind Ltd Light guide and vehicular lighting fixture
JP5374140B2 (en) 2008-12-22 2013-12-25 株式会社小糸製作所 Vehicle lamp
JP5353353B2 (en) * 2009-03-23 2013-11-27 スタンレー電気株式会社 Vehicle signal lights
JP2010267600A (en) * 2009-07-08 2010-11-25 Yi-Jin Industrial Co Ltd Led bulb and its lamp cover
JP5553643B2 (en) * 2010-02-24 2014-07-16 スタンレー電気株式会社 Vehicle lighting
JP5891137B2 (en) * 2012-07-17 2016-03-22 市光工業株式会社 Vehicle lighting
JP6196086B2 (en) * 2013-07-19 2017-09-13 株式会社小糸製作所 Organic EL panel and vehicle lamp
JP5761328B2 (en) * 2013-12-27 2015-08-12 スタンレー電気株式会社 Vehicle lamp
JP6478204B2 (en) * 2014-02-03 2019-03-06 パナソニックＩｐマネジメント株式会社 LIGHTING DEVICE AND AUTOMOBILE HAVING LIGHTING DEVICE
DE102018006479A1 (en) * 2018-08-16 2020-02-20 Daimler Ag Lighting device for a vehicle
CN110469818B (en) * 2019-09-27 2024-05-14 华域视觉科技(上海)有限公司 Lamp assembly and car lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004047351A (en) * 2002-07-15 2004-02-12 Koito Mfg Co Ltd Vehicular lighting fixture
JP2005158362A (en) * 2003-11-21 2005-06-16 Stanley Electric Co Ltd Lighting fixture for vehicle
JP2005203135A (en) * 2004-01-13 2005-07-28 Stanley Electric Co Ltd Led lamp using light guide body

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004047351A (en) * 2002-07-15 2004-02-12 Koito Mfg Co Ltd Vehicular lighting fixture
JP2005158362A (en) * 2003-11-21 2005-06-16 Stanley Electric Co Ltd Lighting fixture for vehicle
JP2005203135A (en) * 2004-01-13 2005-07-28 Stanley Electric Co Ltd Led lamp using light guide body

Also Published As

Publication number Publication date
JP2008146948A (en) 2008-06-26

Similar Documents

Publication Publication Date Title
JP4556140B2 (en) Vehicle lighting
JP5545811B2 (en) Vehicle lighting
KR101684004B1 (en) Light source module of lamp for vehicle
US20120327680A1 (en) Reflector signal lamp having a hidden light source
US20170267163A1 (en) Vehicle decorative lighting device and vehicle lamp
US20120002433A1 (en) Rear lamp for vehicle
JP2017224475A (en) Vehicular lighting fixture
JP2006049231A (en) Vehicular marker lamp
JP6383583B2 (en) Vehicle lighting device
JP6737644B2 (en) Vehicle lighting
JP2020205147A (en) Light guide body and vehicular lighting fixture
JP7483473B2 (en) Vehicle lighting fixtures
US10125945B2 (en) Lamp apparatus for vehicle
US10823363B2 (en) Vehicular lamp
JP2021150210A (en) Vehicular lighting fixture
WO2023210343A1 (en) Vehicle lamp
JP7458238B2 (en) Vehicle lighting fixtures
JP7390244B2 (en) Vehicle lights
EP3838564B1 (en) Vehicle lighting fixture
JP7023779B2 (en) Vehicle lighting
JP7179532B2 (en) vehicle lamp
JP2011076955A (en) Vehicular lighting fixture
WO2023171523A1 (en) Vehicle lamp
KR20170001549U (en) Lamp for vehicle
JP2022177876A (en) Vehicle lighting appliance

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20081104

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100407

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100413

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100528

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100624

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100630

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100707

R150 Certificate of patent or registration of utility model

Ref document number: 4556140

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130730

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130730

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130730

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130730

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees