JP2003203508A - Vehicular headlamp - Google Patents
Vehicular headlampInfo
- Publication number
- JP2003203508A JP2003203508A JP2002001430A JP2002001430A JP2003203508A JP 2003203508 A JP2003203508 A JP 2003203508A JP 2002001430 A JP2002001430 A JP 2002001430A JP 2002001430 A JP2002001430 A JP 2002001430A JP 2003203508 A JP2003203508 A JP 2003203508A
- Authority
- JP
- Japan
- Prior art keywords
- light
- vehicle
- reflector
- inner panel
- wraparound
- 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.)
- Granted
Links
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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は車両用前照灯に関す
る。TECHNICAL FIELD The present invention relates to a vehicle headlamp.
【０００２】[0002]
【従来の技術】従来の車両用前照灯には、ハウジング
と、このハウジングに組み付けられて該ハウジングとの
間に灯室を形成するアウターレンズと、前記灯室内に設
けられ光源バルブの照射光を所定配光方向に反射するリ
フレクタと、前記ハウジングと前記リフレクタとの間の
隙間を隠すインナーパネルと、を備えて構成されるもの
がある。2. Description of the Related Art In a conventional vehicle headlight, a housing, an outer lens that is assembled to the housing to form a lamp chamber between the housing and an illumination light of a light source bulb provided in the lamp chamber. There is a structure that includes a reflector that reflects light in a predetermined light distribution direction, and an inner panel that hides a gap between the housing and the reflector.
【０００３】[0003]
【発明が解決しようとする課題】近年、この種の車両用
前照灯は車両前端から車両側方または車両上方への回り
込み量が大きくなる傾向にあり、これに伴ってインナー
パネルの回り込み量も大きくなる傾向にある。このイン
ナーパネルの回り込み部は光源バルブからの直接光が届
かない範囲であるため、従来の車両用前照灯にあっては
発光面であるリフレクタに対して非発光である回り込み
部の割合いが大きくなり、灯具全体としてみると有効発
光面積の割合が小さくなってしまう。In recent years, this type of vehicle headlamp tends to have a large amount of wraparound from the front end of the vehicle to the side of the vehicle or above the vehicle. As a result, the amount of wraparound of the inner panel also increases. Tends to grow. Since the wraparound portion of this inner panel is in a range where the direct light from the light source bulb does not reach, in the conventional vehicle headlight, there is a proportion of the wraparound portion that is not emitting light to the reflector that is the light emitting surface. As a whole, the ratio of effective light emitting area becomes small.
【０００４】本発明はこのような従来技術を背景に為さ
れたものであって、インナーパネルが回り込み部を備え
る構造において有効発光面積を拡大できる車両用前照灯
を提供することを目的とする。The present invention has been made in view of such a conventional technique, and an object of the present invention is to provide a vehicle headlamp capable of enlarging an effective light emitting area in a structure in which an inner panel has a wraparound portion. .
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明にあ
っては、ハウジングとアウターレンズとにより形成され
た灯室に、光源バルブと、該光源バルブの照射光を所定
配光方向に反射するリフレクタと、前記リフレクタとハ
ウジングとの間を隠すインナーパネルと、を備え、前記
インナーパネルは前記リフレクタの前面周縁から車両側
方または車両上方に回り込むように車両後方へ延在され
た回り込み部を有する構造の車両用前照灯において、少
なくとも前記インナーパネルの回り込み部を導光部材で
構成し、前記リフレクタに、前記光源バルブの照射光を
前記インナーパネルの回り込み部の前端部に向けて反射
して導光させる導光用反射部を設けることで、前記回り
込み部を発光可能としたことを特徴とするものである。According to a first aspect of the present invention, a light chamber formed by a housing and an outer lens reflects a light source bulb and light emitted from the light source bulb in a predetermined light distribution direction. A reflector, and an inner panel that hides between the reflector and the housing, the inner panel having a wrap-around portion extending rearward of the vehicle so as to wrap around the front side peripheral edge of the reflector toward the vehicle side or the vehicle upper side. In a vehicle headlamp having a structure, at least the wraparound portion of the inner panel is configured by a light guide member, and the reflector reflects the irradiation light of the light source bulb toward the front end portion of the wraparound portion of the inner panel. By providing a light-guiding reflection portion that guides the light, the wraparound portion can emit light.
【０００６】請求項２記載の発明にあっては、請求項１
記載の車両用前照灯において、前記インナーパネルの回
り込み部の前端部に、該回り込み部の前端部に導光され
た光を該回り込み部の後部側に向けて反射させる反射層
を設けたことを特徴とするものである。According to the invention of claim 2, claim 1
In the vehicle headlamp described above, a reflection layer is provided at a front end portion of the wraparound portion of the inner panel, the reflection layer reflecting the light guided to the front end portion of the wraparound portion toward the rear side of the wraparound portion. It is characterized by.
【０００７】請求項３記載の発明にあっては、請求項１
または２記載の車両用前照灯において、前記回り込み部
の前端部の裏面側に、補助光源を設けたことを特徴とす
るものである。According to the invention of claim 3, claim 1
Alternatively, in the vehicle headlamp according to the second aspect, an auxiliary light source is provided on the back surface side of the front end portion of the wraparound portion.
【０００８】請求項４記載の発明にあっては、請求項１
〜３のいずれか１項記載の車両用前照灯において、前記
導光用反射部を前記リフレクタの反射面の基本配光面内
に部分的に設けたことを特徴とするものである。According to the invention of claim 4, claim 1
The vehicle headlamp according to any one of claims 1 to 3, wherein the light guide reflection portion is partially provided in a basic light distribution surface of a reflection surface of the reflector.
【０００９】請求項５記載の発明にあっては、請求項１
〜３のいずれか１項記載の車両用前照灯において、前記
光源バルブの照射光の一部を遮断して前記リフレクタの
反射面に非照射範囲を形成するシェードを備える構造で
あって、前記非照射範囲内に前記導光用反射部を設け、
前記シェードに前記光源バルブの照射光を前記導光用反
射部のみへ透過させるスリットを設けたことを特徴とす
るものである。According to the invention of claim 5, claim 1
The vehicle headlamp according to any one of claims 1 to 3, wherein a shade is provided to block a part of the irradiation light of the light source bulb to form a non-irradiation range on the reflecting surface of the reflector, The light guiding reflection portion is provided in the non-irradiation range,
It is characterized in that the shade is provided with a slit for transmitting the irradiation light of the light source bulb only to the light guide reflection portion.
【００１０】請求項６記載の発明にあっては、請求項１
〜５のいずれか１項記載の車両用前照灯において、前記
インナーパネルの回り込み部に裏面反射層を設けたこと
を特徴とするものである。According to the invention of claim 6, claim 1
The vehicle headlight according to any one of items 1 to 5, wherein a back reflection layer is provided in a wraparound portion of the inner panel.
【００１１】なお、本明細書中において回り込み部の前
端部とは、回り込み部の前端から中間部までの回り込み
部の前端近傍部分を意味する。In this specification, the front end portion of the wraparound portion means a portion in the vicinity of the front end of the wraparound portion from the front end of the wraparound portion to the intermediate portion.
【００１２】[0012]
【発明の効果】請求項１記載の発明によれば、導光部材
で構成されるインナーパネルの回り込み部に導光用反射
部を介して積極的に導光して、該回り込み部を発光させ
ることができる。つまり、構造上、光源バルブの直接が
届かずに影となってしまうインナーパネルの回り込み部
が発光面となり、有効発光面積が拡大する。According to the first aspect of the present invention, the inner part formed of the light guide member is positively guided to the wraparound part through the light guide reflection part to cause the wraparound part to emit light. be able to. In other words, the wraparound portion of the inner panel, which is structurally a shadow that cannot be directly reached by the light source bulb, serves as a light emitting surface, thereby expanding the effective light emitting area.
【００１３】請求項２記載の発明によれば、請求項１記
載の発明の効果に加え、回り込み部の前端部の反射層の
存在により、回り込み部に前端部に導光された光が該前
端部からそのまま漏洩して回り込み部の前端部と後部で
の明暗ができてしまうようなことを防止でき、回り込み
部でのより均一な発光を実現できる。According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the presence of the reflection layer at the front end of the wraparound portion allows the light guided to the front end of the wraparound portion to be reflected by the front end. It is possible to prevent the leakage from the portion as it is and to make the front end portion and the rear portion of the wraparound portion bright and dark, and to realize more uniform light emission in the wraparound portion.
【００１４】請求項３記載の発明によれば、請求項１ま
たは２記載の発明の効果に加え、必要に応じて補助光源
によってインナーパネルの回り込み部の輝度を調整でき
る。このとき、補助光源が回り込み部の前端部に配設さ
れているので、補助光源の照射光を反射層を介して回り
込み部の後部側に向かう光と略同一方向へ照射でき、回
り込み部の形状設計が容易となる。しかも、補助光源は
回り込み部の裏面側に設けられているため外部から視認
しにくく、灯具の見栄えが向上する。According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the brightness of the wraparound portion of the inner panel can be adjusted by an auxiliary light source, if necessary. At this time, since the auxiliary light source is arranged at the front end of the wraparound portion, the irradiation light of the auxiliary light source can be emitted in substantially the same direction as the light traveling toward the rear side of the wraparound portion through the reflective layer, and the shape of the wraparound portion Design becomes easy. Moreover, since the auxiliary light source is provided on the back side of the wraparound portion, it is difficult to visually recognize it from the outside, and the appearance of the lamp is improved.
【００１５】請求項４記載の発明によれば、リフレクタ
の基本配光面内に部分的に導光用反射部を設けたため、
フード部を備えずリフレクタの反射面全面を利用して配
光するような場合であっても、請求項１〜３の発明を具
現化することができる。According to the fourth aspect of the present invention, since the light guide reflection portion is partially provided in the basic light distribution surface of the reflector,
The inventions of claims 1 to 3 can be embodied even in the case where light is distributed using the entire reflecting surface of the reflector without the hood portion.
【００１６】請求項５記載の発明によれば、前記光源バ
ルブの照射光の一部を遮断して前記リフレクタの反射面
内に非照射範囲を形成するシェードを設けた構造、例え
ば、ロービーム用にリフレクタの反射面内に非照射範囲
を形成しなくてはならない構造であっても、非照射範囲
内の導光用反射部およびシェードのスリットによって請
求項１〜３記載の発明を具現化することができる。この
とき、非照射範囲を利用して回り込み部に導光するた
め、従来不使用であった光を有効に利用回収でき、同一
光源で高輝度を達成できる。According to a fifth aspect of the present invention, a structure is provided in which a shade for blocking a part of the irradiation light of the light source bulb to form a non-irradiation area in the reflecting surface of the reflector, for example, for a low beam is used. Even if the structure has to form the non-irradiation area in the reflecting surface of the reflector, the invention according to any one of claims 1 to 3 can be embodied by the light guide reflection portion and the slit of the shade in the non-irradiation area. You can At this time, since the non-irradiated area is used to guide the light to the wraparound portion, it is possible to effectively use and recover the light that has not been used conventionally, and achieve high brightness with the same light source.
【００１７】請求項６記載の発明によれば、請求項１〜
５のいずれか１項記載の発明の効果に加え、消灯時には
裏面反射層がダミー反射面として回り込み部の裏側を透
視不可能とする一方、点灯時には裏面反射層が回り込み
部に導光された光を裏側に漏洩するを防止する。そのた
め、消灯時には回り込み部の見栄えが向上するととも
に、点灯時には回り込み部の輝度がさらに高まる。According to the invention of claim 6,
In addition to the effect of the invention described in any one of 5 above, when the light is turned off, the back surface reflection layer functions as a dummy reflection surface so that the back side of the wraparound portion cannot be seen through, while the light is guided to the wraparound portion when the light is turned on. To prevent it from leaking to the back side. Therefore, the appearance of the wraparound portion is improved when the light is turned off, and the brightness of the wraparound portion is further increased when the light is turned on.
【００１８】なお、消灯時に回り込み部の裏側を視認不
可能とするためには、この請求項６記載の発明の他に、
アウターレンズの裏面にインナーパネルからの光を拡
散する拡散手段を設ける、アウターレンズとインナー
パネルとの間にインナーパネルからの光を拡散する拡散
手段を有するインナーレンズを設ける、インナーパネ
ルの表面に所定方向に偏向配光するプリズムシートを貼
る、インナーパネルを不透明な導光部材として構成す
る、などの例がありデザインなどの要求に合わせて適宜
選択可能であるが、特に、請求項６記載の発明にあって
は、裏面反射層がダミー反射面として機能することで、
奥行感、透明感を備える商品価値の高い灯具を提供でき
る。In order to make the back side of the wraparound portion invisible when the light is turned off, in addition to the invention described in claim 6,
A diffusing means for diffusing the light from the inner panel is provided on the back surface of the outer lens, an inner lens having a diffusing means for diffusing the light from the inner panel is provided between the outer lens and the inner panel, and a predetermined surface is provided on the inner panel. There is an example in which a prism sheet that deflects and distributes light in a direction is attached, and the inner panel is configured as an opaque light guide member, and the like can be appropriately selected according to requirements such as design, but the invention according to claim 6 is particularly preferable. In that case, since the back surface reflection layer functions as a dummy reflection surface,
It is possible to provide a lamp with a high commercial value that has a sense of depth and transparency.
【００１９】[0019]
【発明の実施の形態】以下、本発明の実施形態を図面を
もとに説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.
【００２０】第１実施形態：図１〜図３は本発明の車両
用前照灯の第１実施形態を示すものである。この車両用
前照灯１０は、車体前端部に取り付けられる図示せぬハ
ウジングと、該ハウジングに組み合わされて該ハウジン
グとの間に灯室１１を形成するアウターレンズ１２と、
灯室１１内に配される光源バルブ１３およびリフレクタ
１４およびインナーパネル１５を備えて構成されてい
る。First Embodiment: FIGS. 1 to 3 show a first embodiment of a vehicle headlamp according to the present invention. The vehicle headlamp 10 includes a housing (not shown) attached to a front end portion of a vehicle body, an outer lens 12 that is combined with the housing to form a lamp chamber 11 between the housing and the housing.
A light source bulb 13, a reflector 14, and an inner panel 15 arranged in the lamp chamber 11 are provided.
【００２１】アウターレンズ１２は、素通しレンズで構
成され、配光機能はリフレクタ１４に付与されている。
なお、リフレクタ１４に配光機能が付与されない場合に
はアウターレンズ１２の裏面にレンズカット部を設けて
配光してもよい。The outer lens 12 is composed of a transparent lens, and the light distribution function is given to the reflector 14.
If the reflector 14 is not provided with a light distribution function, a lens cut portion may be provided on the back surface of the outer lens 12 for light distribution.
【００２２】リフレクタ１４は、図示せぬ玉継手および
上下エイミング手段および左右エイミング手段からなる
エイミング機構を介してハウジングに支持されており、
これにより車体組付時にはリフレクタ１４の光軸を調節
できるようになっている。The reflector 14 is supported by the housing through an aiming mechanism including a ball joint (not shown), upper and lower aiming means, and left and right aiming means.
As a result, the optical axis of the reflector 14 can be adjusted when the vehicle body is assembled.
【００２３】このリフレクタ１４の反射面１８は、回転
楕円面または自由曲面などで形成され光源バルブ１３か
らの照射光を所定配光方向（この例ではハイビーム配光
方向）に向けて反射する基本配光面１８ａと、フード部
１６の内面の補助反射面１８ｂと、を備えて構成されて
いる。The reflecting surface 18 of the reflector 14 is formed of a spheroidal surface or a free-form surface, and is a basic light distribution for reflecting the irradiation light from the light source bulb 13 in a predetermined light distribution direction (in this example, a high beam light distribution direction). The light surface 18a and the auxiliary reflection surface 18b on the inner surface of the hood portion 16 are provided.
【００２４】インナーパネル１５は、リフレクタ１４と
ハウジングとの隙間を隠す基本機能を有するものであ
り、車両後方に向けて上傾斜した灯室形状に合わせて、
リフレクタ１４の前面下縁から車両前方に延在する前方
突出部２１と、リフレクタ１４の前面上縁から車両上方
側に回り込んで車両後方に延在する回り込み部２２と、
を備えている。The inner panel 15 has a basic function of hiding the gap between the reflector 14 and the housing, and has a lamp chamber shape inclined upward toward the rear of the vehicle.
A front projecting portion 21 that extends from the lower front edge of the reflector 14 toward the front of the vehicle, and a wrap-around portion 22 that extends from the upper edge of the front surface of the reflector 14 toward the vehicle upper side and extends toward the vehicle rear,
Is equipped with.
【００２５】そして、この実施形態のインナーパネル１
５は、上記基本機能に加えて回り込み部２２を発光させ
るべく透明なアクリル樹脂などの導光部材として構成さ
れていて、少なくともリフレクタ１４の反射面１８に臨
んで位置することとなる回り込み部２２の前端部２２ａ
から導光して、該回り込み部２２が発光するようになっ
ている。なお、インナーパネル１５には、アルミ蒸着ま
たは銀色塗装などによる裏面反射層２３が設けられ、こ
の裏面反射層２３がダミー反射面としてインナーパネル
１５の裏側を隠している。Then, the inner panel 1 of this embodiment
5 is configured as a light guide member such as a transparent acrylic resin in order to make the wraparound portion 22 emit light in addition to the above-mentioned basic functions, and at least the wraparound portion 22 facing the reflective surface 18 of the reflector 14 is provided. Front end 22a
The wraparound portion 22 emits light by being guided from. The inner panel 15 is provided with a back surface reflection layer 23 formed by aluminum vapor deposition or silver coating, and the back surface reflection layer 23 hides the back side of the inner panel 15 as a dummy reflection surface.
【００２６】リフレクタ１４の下フード部１６ｂは、回
り込み部２２の前端部２２ａから積極的に導光するため
に、光源バルブ１３の照射光を回り込み部２２の前端部
２２ａに向けて反射すべく角度設定されてその内面全体
が導光用反射部２４となっている。The lower hood portion 16b of the reflector 14 has an angle to reflect the irradiation light of the light source bulb 13 toward the front end portion 22a of the wraparound portion 22 in order to positively guide the light from the front end portion 22a of the wraparound portion 22. The light guide reflection portion 24 is formed on the entire inner surface of the light guide portion 24.
【００２７】回り込み部２２の前端部２２ａには、該導
光用反射部２４からの反射光をより導光しやすくすべく
前記導光用反射部２４からの反射光の入射角がより直角
に近づくように面設定された導光面２５が設けられてい
る。また、同じく回り込み部２２の前端部２２ａには、
導光面２５から回り込み部２２前端部２２ａに導光され
た光を漏洩させることなく効率的に回り込み部２２後部
２２ｂ側に向けて変向させるべく前端反射層２６が設け
られている。At the front end portion 22a of the wraparound portion 22, the incident angle of the reflected light from the light guiding reflecting portion 24 becomes more right angle so that the reflected light from the light guiding reflecting portion 24 can be guided more easily. A light guide surface 25 whose surface is set to approach is provided. Similarly, the front end portion 22a of the wraparound portion 22 has
A front end reflection layer 26 is provided in order to efficiently redirect the light guided from the light guide surface 25 to the front end portion 22a of the wraparound portion 22 toward the rear portion 22b of the wraparound portion 22 without leaking.
【００２８】そして、前端反射層２６で反射された光
は、回り込み部２２の前端部２２ａから後部２２ｂに向
けて導かれ、回り込み部２２の表面に形成された複数の
レンズカット面２７、２７、２７・・で車両前方の所定
配光方向に向けて反射するようになっている。The light reflected by the front end reflection layer 26 is guided from the front end portion 22a of the wraparound portion 22 toward the rear portion 22b, and a plurality of lens cut surfaces 27, 27 formed on the surface of the wraparound portion 22. At 27 ..., The light is reflected in a predetermined light distribution direction in front of the vehicle.
【００２９】また、回り込み部２２の前端部２２ａに
は、光路を遮らない位置に、回り込み部２２の後部２２
側に指向する補助光源としてのＬＥＤ２８が複数配設さ
れていて、このＬＥＤ２８が回り込み部２２の発光量を
補完している。ここで、このＬＥＤ２８は、回り込み部
２２の裏面側に位置することで外部から視認しにくくな
っていて、しかも、前端反射層２６の後方に位置するこ
とで前端反射層２６の後ろに隠れるようになっている。Further, at the front end 22a of the wraparound portion 22, the rear portion 22 of the wraparound portion 22 is provided at a position that does not block the optical path.
A plurality of LEDs 28 as auxiliary light sources directed to the side are provided, and the LEDs 28 complement the light emission amount of the wraparound portion 22. Here, since the LED 28 is located on the back surface side of the wraparound portion 22, it is difficult to visually recognize it from the outside, and furthermore, the LED 28 is located behind the front end reflective layer 26 so as to be hidden behind the front end reflective layer 26. Has become.
【００３０】以下、このように構成された第１実施形態
の車両用前照灯１０の作用を光路に沿って説明する。The operation of the vehicular headlamp 10 of the first embodiment thus configured will be described below along the optical path.
【００３１】光源バルブ１３の照射光の大部分は、リフ
レクタ１４の反射面１８の基本配光面１８ａで反射され
て車両前方の所定配光方向に向かい、光源バルブ１３の
照射光の一部は、直接または導光用反射部２４で反射さ
れ、導光面２５から回り込み部２２の前端部２２ａに導
光される。Most of the light emitted from the light source bulb 13 is reflected by the basic light distribution surface 18a of the reflecting surface 18 of the reflector 14 and travels in a predetermined light distribution direction in front of the vehicle. The light is directly or reflected by the light guide reflection portion 24 and guided from the light guide surface 25 to the front end portion 22 a of the wraparound portion 22.
【００３２】導光面２５から導光された光は、前端反射
層２６で反射された後、ＬＥＤ２８の照射光と共に回り
込み部２２の前端２２ａから後部２２ｂに向けて導びか
れ、さらにレンズカット面２７、２７、２７・・・で反
射されて車両前方の所定配光方向に向かう。The light guided from the light guide surface 25 is reflected by the front end reflection layer 26, and then guided together with the irradiation light of the LED 28 from the front end 22a of the wraparound portion 22 toward the rear portion 22b, and further the lens cut surface. The light is reflected by 27, 27, 27 ... and heads in a predetermined light distribution direction in front of the vehicle.
【００３３】以上のようにこの第１実施形態の車両用前
照灯１０によれば、インナーパネル１５が回り込み部２
２を有する構造において、前記インナーパネル１５を導
光部材で構成し、光源バルブ１３の照射光を回り込み部
２２の前端部２２ａに向けて反射して導光させる導光用
反射部２４を設けたため、回り込み部２２に光源バルブ
１３の照射光を積極的に導光して該回り込み部２２を発
光させることができる。つまり、構造上、光源バルブ１
３からの直接光が届かずに影となってしまう回り込み部
２２が発光面となり、図１に示すように、灯具全体に対
する有効発光面積を拡大することができる。これに伴
い、対向車および歩行車からの視認性に優れた灯具とな
る。As described above, according to the vehicle headlamp 10 of the first embodiment, the inner panel 15 has the wraparound portion 2.
In the structure having two, since the inner panel 15 is composed of a light guide member, and the light guide reflection portion 24 for reflecting and guiding the irradiation light of the light source bulb 13 toward the front end portion 22a of the wraparound portion 22 is provided. It is possible to positively guide the irradiation light of the light source bulb 13 to the wraparound portion 22 to cause the wraparound portion 22 to emit light. In other words, due to the structure, the light source bulb 1
The wrap-around portion 22 where the direct light from 3 does not reach and becomes a shadow serves as a light emitting surface, and as shown in FIG. 1, the effective light emitting area for the entire lamp can be enlarged. Along with this, the lamp has excellent visibility from an oncoming vehicle and a pedestrian.
【００３４】また、この実施形態では、リフレクタ１４
のフード部１６ｂを利用して導光用反射部２４を形成し
たため、従来は利用していなかった光を有効に回収利用
できる。そのため、同一光源を用いても灯具として高輝
度化することができる。Also, in this embodiment, the reflector 14
Since the light guide reflection portion 24 is formed by using the hood portion 16b, it is possible to effectively collect and use the light that has not been conventionally used. Therefore, even if the same light source is used, the brightness of the lamp can be increased.
【００３５】また、この第１実施形態の車両用前照灯１
０によれば、回り込み部２２の前端部２２ａの前端反射
層２６が、前端部２２ａから光がそのまま漏洩して前端
部２２ａと後部２２ｂと間に明暗ができてしまうような
ことを防止するため、回り込み部２２での均一な発光を
実現できる。Further, the vehicle headlamp 1 according to the first embodiment.
According to 0, the front end reflection layer 26 of the front end part 22a of the wraparound part 22 prevents the light from leaking from the front end part 22a as it is and causing light and darkness between the front end part 22a and the rear part 22b. It is possible to realize uniform light emission in the wraparound portion 22.
【００３６】また、この第１実施形態の車両用前照灯１
０によれば、回り込み部２２の前端部２２ａに補助光源
としてのＬＥＤ２８を設けたことで、回り込み部２２の
輝度を調整できる。このとき、ＬＥＤ２８が回り込み部
２２の前端部２２ａに配設されることで、ＬＥＤ２８の
照射光を前端反射層２６から回り込み部２２後部２２ｂ
に向かう反射光と略同一方向に設定できるため、回り込
み部２２のレンズカット面２７、２７、２７、・・・の
形状設計が容易となる。そして、そのような構造であり
ながらも、ＬＥＤ２８は回り込み部２２の裏面側に位置
するので外部から視認しにくく、灯具の見栄えを損なわ
ない。Further, the vehicle headlamp 1 according to the first embodiment.
According to 0, since the LED 28 as the auxiliary light source is provided at the front end portion 22a of the wraparound portion 22, the brightness of the wraparound portion 22 can be adjusted. At this time, the LED 28 is disposed at the front end portion 22a of the wraparound portion 22 so that the light emitted from the LED 28 is radiated from the front end reflection layer 26 to the wraparound portion 22 rear portion 22b.
Since it can be set in substantially the same direction as the reflected light traveling toward, the shape design of the lens cut surfaces 27, 27, 27, ... And, even with such a structure, since the LED 28 is located on the back surface side of the wraparound portion 22, it is difficult to visually recognize it from the outside, and the appearance of the lamp is not impaired.
【００３７】しかも、この第１実施形態の車両用前照灯
１０によれば、ＬＥＤ２８が前端反射層２６の後方に位
置するため、車両前方からある程度距離をおいて灯具を
見た場合にはＬＥＤ２８は完全に前端反射層２６に隠
れ、灯具の見栄え向上につながる。Moreover, according to the vehicle headlamp 10 of the first embodiment, since the LED 28 is located behind the front end reflection layer 26, the LED 28 is seen when the lamp is viewed at a certain distance from the front of the vehicle. Is completely hidden by the front end reflection layer 26, which improves the appearance of the lamp.
【００３８】また、この第１実施形態の車両用前照灯１
０によれば、裏面反射層２３が、消灯時にはダミー反射
面として回り込み部２２裏側を透視不可能とする一方、
点灯時には回り込み部２２裏側への光の漏洩を防止す
る。そのため、消灯時には回り込み部２２の見栄えが向
上し、点灯時には回り込み部２２の輝度が向上する。Further, the vehicle headlamp 1 according to the first embodiment.
According to 0, the back surface reflection layer 23 makes it impossible to see through the back side of the wraparound portion 22 as a dummy reflection surface when the light is turned off.
At the time of lighting, leakage of light to the back side of the wraparound portion 22 is prevented. Therefore, the appearance of the wraparound portion 22 is improved when the light is turned off, and the brightness of the wraparound portion 22 is improved when the light is turned on.
【００３９】なお、インナーパネル１５の回り込み部２
２からの発光をより均一にしたい場合には、アウターレ
ンズ１２の裏面の回り込み部２２に対応する位置に回り
込み部２２からの照射を拡散する拡散部を設けたり、ま
たは、アウターレンズ１２と回り込み部２２との間に、
回り込み部２２からの照射を拡散する拡散部を有するイ
ンナーレンズを設けてもよいものとする。The wrap-around portion 2 of the inner panel 15
In order to make the light emitted from the outer lens 12 more uniform, a diffusing portion for diffusing the irradiation from the rounding portion 22 is provided at a position corresponding to the rounding portion 22 on the back surface of the outer lens 12, or the outer lens 12 and the rounding portion. Between 22 and
An inner lens having a diffusing portion that diffuses the irradiation from the wraparound portion 22 may be provided.
【００４０】第２実施形態：図４および図５は第２実施
形態を示すものである。なお、第１実施形態と同様の構
成については同一の符号を付し、構成・作用効果の説明
を省略する。Second Embodiment: FIGS. 4 and 5 show a second embodiment. The same components as those in the first embodiment are designated by the same reference numerals, and the description of the components / effects will be omitted.
【００４１】第２実施形態の車両用前照灯３０は、リフ
レクタ１４の反射面１８の基本配光面１８ａ内に部分的
に複数の導光用反射部３１、３１を設けた点で第１実施
形態と異なっている。この導光用反射部３１は、図５に
示すように基本配光面１８ａに設けられた凹部３２の底
面として形成されていて、該凹部３２の側面３３はグレ
ア光を生成しないように光源バルブ１３の直射光に対し
て影となるように反り傾斜している。The vehicle headlamp 30 of the second embodiment is the first in that a plurality of light guide reflecting portions 31, 31 are partially provided in the basic light distribution surface 18a of the reflecting surface 18 of the reflector 14. Different from the embodiment. As shown in FIG. 5, the light guide reflection portion 31 is formed as a bottom surface of a concave portion 32 provided in the basic light distribution surface 18a, and the side surface 33 of the concave portion 32 is a light source bulb so as not to generate glare light. It is warped and inclined so as to form a shadow with respect to the direct light of 13.
【００４２】このような第２実施形態の車両用前照灯３
０によれば、リフレクタ１４の反射面１８全面を利用し
て配光するような場合、つまり、ハイビーム配光のよう
な場合であっても、第１実施形態と同様の効果を得るこ
とができる。The vehicle headlamp 3 of the second embodiment as described above.
According to 0, even when light is distributed using the entire reflecting surface 18 of the reflector 14, that is, even in the case of high beam light distribution, the same effect as that of the first embodiment can be obtained. .
【００４３】また、この第２実施形態の車両用前照灯３
０によれば、リフレクタ１４の外縁形状を変更すること
なく導光用反射部３１を形成できるため、リフレクタ１
４外縁形状および該リフレクタ１４外縁形状に合わせて
設計されるインナーパネル１５の外縁形状を変更する必
要がなく、既存のデザインの車両用前照灯をそのまま流
用して本発明の車両用前照灯に比較的低コストで変更で
きる。The vehicle headlamp 3 of the second embodiment is also provided.
According to 0, since the light guide reflection portion 31 can be formed without changing the outer edge shape of the reflector 14, the reflector 1
4 It is not necessary to change the outer edge shape of the inner panel 15 designed to match the outer edge shape and the outer edge shape of the reflector 14, and the vehicle headlamp of the present invention can be used by diverting the existing vehicle headlamp. Can be changed at a relatively low cost.
【００４４】第３実施形態：図６〜図７は第３実施形態
を示すものである。なお、第１，第２実施形態と同様の
構成については同一符号を付し説明を省略する。この第
３実施形態の車両用前照灯４０は、ロービーム用に、光
源バルブ１３からの下方照射を遮断してリフレクタ１４
の反射面１８の下部を非照射範囲とする下方照射遮断部
４２を有するシェード４１を備えた例である。Third Embodiment: FIGS. 6 to 7 show a third embodiment. The same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted. The vehicle headlamp 40 according to the third embodiment blocks the downward irradiation from the light source bulb 13 for the low beam and reflects the reflector 14.
This is an example including a shade 41 having a lower irradiation blocking section 42 that makes the lower part of the reflection surface 18 of the above-mentioned non-irradiation range.
【００４５】この実施形態では、リフレクタ１４の非照
射範囲に導光用反射部４４、４４が設けられており、シ
ェード４１の下方照射遮断部４２に光源バルブ１３の照
射光を各導光用反射部４４、４４にのみに透過させるス
リット４３、４３が設けられている。また、この実施形
態では、反射面１８と導光用反射部４４との面形状差を
による見栄え低下を防ぐべくこれら反射面１８と導光用
反射部４４とを滑らかに繋ぐ除変部４５が設けられてい
る。In this embodiment, the light guide reflection portions 44, 44 are provided in the non-irradiation area of the reflector 14, and the downward irradiation blocker 42 of the shade 41 reflects the irradiation light of the light source bulb 13 for each light guide reflection. Slits 43, 43 are provided to allow only the portions 44, 44 to pass. Further, in this embodiment, the smoothing portion 45 that smoothly connects the reflecting surface 18 and the light guiding reflecting portion 44 is provided in order to prevent the appearance of the reflecting surface 18 and the light guiding reflecting portion 44 from being deteriorated due to the difference in surface shape. It is provided.
【００４６】この第３実施形態によれば、シェード４１
でリフレクタ１４の反射面１８下部への照射を遮るロー
ビーム用の構造であっても、非照射範囲の導光用反射部
４４、４４およびシェード４１のスリット４３、４３に
よって第１，２実施形態と同様の効果を得られる。この
とき、非照射範囲を利用するため、従来不使用であった
光を有効に利用回収でき、同一光源で高輝度を達成でき
る。According to the third embodiment, the shade 41
Even in the low beam structure that blocks the irradiation of the lower portion of the reflecting surface 18 of the reflector 14 with the first and second embodiments, the light guiding reflecting portions 44, 44 in the non-irradiation range and the slits 43, 43 of the shade 41 are used. The same effect can be obtained. At this time, since the non-irradiation range is used, it is possible to effectively use and recover the light which has not been used conventionally, and achieve high brightness with the same light source.
【００４７】また、この第３実施形態によれば、スリッ
ト４３によって導光用反射部４４の近傍には照射光が及
ばないため、グレア光を発生させることなく反射面１８
と導光用反射部４４とを滑らかに繋ぐ除変部４５を設け
ることができ、見栄えをさらに向上させることができ
る。Further, according to the third embodiment, since the irradiation light does not reach the vicinity of the light guide reflection portion 44 due to the slit 43, the reflection surface 18 does not generate glare light.
It is possible to provide the smoothing portion 45 that smoothly connects the light guiding reflection portion 44 and the light guiding reflection portion 44, and it is possible to further improve the appearance.
【００４８】なお、シェードのスリットは、この実施形
態のように光源バルブ４３と別体でシェード４１が設け
られた例に限られず、Ｈ４バルブなどのように光源バル
ブ自体にシェードが設けらたものであっても適用でき
る。The slit of the shade is not limited to the example in which the shade 41 is provided separately from the light source bulb 43 as in this embodiment, and the shade is provided in the light source bulb itself such as the H4 bulb. Even applicable.
【図１】本発明の第１実施形態の車両用前照灯の概略縦
断面図。FIG. 1 is a schematic vertical sectional view of a vehicle headlamp according to a first embodiment of the present invention.
【図２】同車両用前照灯のインナーパネルの概略形状を
示す斜視図。FIG. 2 is a perspective view showing a schematic shape of an inner panel of the vehicle headlamp.
【図３】同車両用前照灯の要部を示す拡大断面図。FIG. 3 is an enlarged cross-sectional view showing a main part of the vehicle headlamp.
【図４】本発明の第２実施形態の車両用前照灯の要部斜
視図。FIG. 4 is a perspective view of a main part of a vehicle headlamp according to a second embodiment of the present invention.
【図５】図４中Ａ−Ａ線に沿う断面図。5 is a cross-sectional view taken along the line AA in FIG.
【図６】本発明の第３実施形態の車両用前照灯の要部断
面図。FIG. 6 is a sectional view of a main part of a vehicle headlamp according to a third embodiment of the present invention.
【図７】同車両用前照灯に用いるシェードの下面図。FIG. 7 is a bottom view of a shade used for the vehicle headlight.
１０ 車両用前照灯 １１ 灯室 １２ アウターレンズ １３ 光源バルブ １４ リフレクタ １５ インナーパネル １８ 反射面 １８ａ 基本配光面 ２２ 回り込み部 ２２ａ 回り込み部の前端部 ２２ｂ 回り込み部の後部 ２３ 裏面反射層 ２４ 導光用反射部 ２６ 前端反射層（反射層） ２８ ＬＥＤ（補助光源） ３０ 車両用前照灯 ３１ 導光用反射部 ４０ 車両用前照灯 ４１ シェード ４３ スリット ４４ 導光用反射部 10 Vehicle headlights 11 light room 12 outer lens 13 Light source bulb 14 reflector 15 Inner panel 18 reflective surface 18a Basic light distribution surface 22 Rounding part 22a Front end of wraparound part 22b Rear part of the wraparound part 23 Back reflective layer 24 Light guide reflector 26 Front reflective layer (reflective layer) 28 LED (auxiliary light source) 30 Vehicle headlights 31 Light guide reflector 40 Vehicle headlights 41 shade 43 slits 44 Reflector for light guide
Claims (6)
成された灯室に、光源バルブと、該光源バルブの照射光
を所定配光方向に反射するリフレクタと、リフレクタお
よびハウジングの間を隠すインナーパネルと、を備え、
前記インナーパネルは前記リフレクタの前面周縁から車
両側方または車両上方に回り込むように車両後方へ延在
された回り込み部を有する構造の車両用前照灯におい
て、 少なくとも前記インナーパネルの回り込み部を導光部材
で構成し、前記リフレクタに、前記光源バルブの照射光
を前記インナーパネルの回り込み部の前端部に向けて反
射して導光させる導光用反射部を設けることで、前記回
り込み部を発光可能としたことを特徴とする車両用前照
灯。1. A light chamber formed by a housing and an outer lens, a light source bulb, a reflector for reflecting light emitted from the light source bulb in a predetermined light distribution direction, and an inner panel for hiding between the reflector and the housing. Equipped with
The inner panel is a vehicle headlamp having a wrap-around portion that extends rearward of the vehicle so as to wrap around a front side peripheral edge of the reflector toward a side of the vehicle or an upper side of the vehicle, and guides at least a wrap-around portion of the inner panel. It is possible to emit light from the wraparound part by providing the reflector with a light guide reflection part for reflecting and guiding the irradiation light of the light source bulb toward the front end part of the wraparound part of the inner panel. The vehicle headlight characterized in that
み部の前端部に導光された光を該回り込み部の後部側に
向けて反射させる反射層を設けたことを特徴とする車両
用前照灯。2. The vehicle headlamp according to claim 1, wherein the light guided to the front end of the wraparound portion is directed to the rear end of the wraparound portion of the inner panel. A vehicle headlamp having a reflective layer for reflecting the light.
おいて、 前記回り込み部の前端部の裏面側に補助光源を設けたこ
とを特徴とする車両用前照灯。3. The vehicle headlamp according to claim 1, wherein an auxiliary light source is provided on the back surface side of the front end portion of the wraparound portion.
用前照灯において、 前記リフレクタの反射面の基本配光面内に、前記導光用
反射部を部分的に設けたことを特徴とする車両用前照
灯。4. The vehicle headlamp according to claim 1, wherein the light guide reflection portion is partially provided in a basic light distribution surface of a reflection surface of the reflector. Vehicle headlights characterized by.
用前照灯において、 前記光源バルブの照射光の一部を遮断して前記リフレク
タの反射面に非照射範囲を形成するシェードを備える構
造であって、 前記非照射範囲内に前記導光用反射部を設け、前記シェ
ードに前記光源バルブの照射光を前記導光用反射部のみ
へ透過させるスリットを設けたことを特徴とする車両用
前照灯。5. The vehicle headlight according to any one of claims 1 to 3, wherein a part of irradiation light of the light source bulb is blocked to form a non-irradiation range on a reflecting surface of the reflector. And a slit for transmitting the irradiation light of the light source bulb only to the light guide reflection part in the shade, wherein the light guide reflection part is provided in the non-irradiation range. Vehicle headlights.
用前照灯において、 前記インナーパネルの回り込み部に裏面反射層を設けた
ことを特徴とする車両用前照灯。6. The vehicle headlamp according to any one of claims 1 to 5, wherein a back reflection layer is provided in a wraparound portion of the inner panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002001430A JP3760865B2 (en) | 2002-01-08 | 2002-01-08 | Vehicle headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002001430A JP3760865B2 (en) | 2002-01-08 | 2002-01-08 | Vehicle headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003203508A true JP2003203508A (en) | 2003-07-18 |
| JP3760865B2 JP3760865B2 (en) | 2006-03-29 |
Family
ID=27641551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002001430A Expired - Fee Related JP3760865B2 (en) | 2002-01-08 | 2002-01-08 | Vehicle headlamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3760865B2 (en) |
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| JP2007062565A (en) * | 2005-08-31 | 2007-03-15 | Honda Motor Co Ltd | Vehicular lighting system |
| EP1855051A1 (en) * | 2006-05-12 | 2007-11-14 | Valeo Vision | Optical module of automobile headlight |
| JP2007535114A (en) * | 2004-04-27 | 2007-11-29 | アドバンスト オプティカル テクノロジーズ，エルエルシー | Optical integrated chamber illumination using multiple color sources to adjust white light |
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| DE102004003577A1 (en) * | 2004-01-23 | 2005-09-15 | Volkswagen Ag | Lamp arrangement for motor vehicle features a light disc and a light conductor |
| DE102004003577B4 (en) * | 2004-01-23 | 2013-01-17 | Volkswagen Ag | Luminaire arrangement for a vehicle |
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| JP2010161048A (en) * | 2009-01-12 | 2010-07-22 | Stanley Electric Co Ltd | Projector type vehicular headlamp |
| JP2012155902A (en) * | 2011-01-24 | 2012-08-16 | Stanley Electric Co Ltd | Vehicular lamp |
| JP2014107123A (en) * | 2012-11-28 | 2014-06-09 | Mazda Motor Corp | Vehicle head lamp and vehicle having vehicle head lamp |
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| KR102002029B1 (en) * | 2015-12-23 | 2019-10-01 | 에스엘 주식회사 | Lamp for vehicle |
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