JP2000003605A - Headlamp device for vehicle - Google Patents
Headlamp device for vehicleInfo
- Publication number
- JP2000003605A JP2000003605A JP10167182A JP16718298A JP2000003605A JP 2000003605 A JP2000003605 A JP 2000003605A JP 10167182 A JP10167182 A JP 10167182A JP 16718298 A JP16718298 A JP 16718298A JP 2000003605 A JP2000003605 A JP 2000003605A
- Authority
- JP
- Japan
- Prior art keywords
- light
- light guide
- guide member
- guide material
- distribution pattern
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両に搭載される
１台の光源装置からの光を２本の導光材を通して車両前
方に照射する車両用前照灯装置に係り、特に、部品点数
が少なくて済む車両用前照灯装置に関するものである。
なお、本明細書及び本図面において、符号「Ｌ」はドラ
イバー側から前方を見た場合の左側のことを示し、また
符号「Ｒ」はドライバー側から前方を見た場合の右側の
ことを示し、さらに符号「Ｕ」はドライバー側から前方
を見た場合の上側のことを示し、さらにまた符号「Ｄ」
はドライバー側から前方を見た場合の下側のことを示
す。また、符号「ＨＬ−ＨＲ」は水平線のことを示し、
符号「ＶＵ−ＶＤ」は垂直線のことを示し、符号「Ｚ−
Ｚ」は光軸のことを示す。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlight device for a vehicle, which irradiates light from one light source device mounted on the vehicle to the front of the vehicle through two light guide members, and more particularly, to the number of parts. The present invention relates to a vehicular headlamp device that requires less power.
In this specification and the drawings, the symbol “L” indicates a left side when viewed from the driver side, and the symbol “R” indicates a right side when viewed from the driver side. , And the symbol “U” indicates the upper side when looking forward from the driver side, and the symbol “D”
Indicates the lower side when looking forward from the driver side. The symbol “HL-HR” indicates a horizontal line,
The symbol “VU-VD” indicates a vertical line, and the symbol “Z-
"Z" indicates the optical axis.
【０００２】[0002]
【従来の技術】この種の車両用前照灯装置は、一般に、
図９乃至図１２に示すように、車両（図示していない
が、この例では自動車）に搭載される１台の光源装置１
と、入射端２０と出射端２１をそれぞれ有する第１導光
材２及び第２導光材（図示せず）の２本の導光材とを備
える。2. Description of the Related Art This type of vehicle headlight device generally includes
As shown in FIGS. 9 to 12, one light source device 1 mounted on a vehicle (not shown, but in this example, an automobile)
And two light guide members, a first light guide member 2 and a second light guide member (not shown) each having an incident end 20 and an output end 21.
【０００３】前記光源装置１は、中空形状のケーシング
１０と、前記ケーシング１０の内面にそれぞれ設けられ
た第１反射面１１及び第２反射面１２と、前記ケーシン
グ１０内に配置された１個の光源１３と、前記第１反射
面１１及び前記第２反射面１２に設けられた第２投光口
１５及び第１投光口１４とから構成されてなるものであ
る。The light source device 1 comprises a hollow casing 10, a first reflecting surface 11 and a second reflecting surface 12 respectively provided on the inner surface of the casing 10, and one light source disposed in the casing 10. It comprises a light source 13 and a second light emitting port 15 and a first light emitting port 14 provided on the first reflection surface 11 and the second reflection surface 12.
【０００４】前記第１反射面１１及び前記第２反射面１
２は、第１焦点Ｆ１が共通な１点に（若しくは１点の近
傍に）それぞれ位置する回転楕円面の一部から構成され
ている。前記１個の光源１３は、放電灯（例えば、メタ
ルハライドランプ等の高圧金属蒸気放電灯、高輝度放電
灯（ＨＩＤ）等）から構成されており、前記第１反射面
１１及び前記第２反射面１２の長軸方向に対して直交す
る方向にかつ水平方向に配置されている（所謂横置
き）。この放電灯１３の発光部１３０は、前記第１反射
面１１及び前記第２反射面１２の第１焦点Ｆ１（若しく
はその第１焦点Ｆ１の近傍）に配置されている。前記第
１投光口１４及び第２投光口１５は、例えば円形をな
し、前記第１反射面１１の第２焦点Ｆ２及び前記第２反
射面１２の第２焦点Ｆ２（若しくはその近傍）に配置さ
れている。The first reflecting surface 11 and the second reflecting surface 1
Reference numeral 2 denotes a part of the spheroidal surface where the first focal point F1 is located at one common point (or near the one point). The one light source 13 includes a discharge lamp (for example, a high-pressure metal vapor discharge lamp such as a metal halide lamp, a high-intensity discharge lamp (HID), or the like), and includes the first reflection surface 11 and the second reflection surface. 12 are arranged in the direction orthogonal to the long axis direction and in the horizontal direction (so-called horizontal placement). The light emitting section 130 of the discharge lamp 13 is disposed at a first focal point F1 (or near the first focal point F1) of the first reflecting surface 11 and the second reflecting surface 12. The first light emitting port 14 and the second light emitting port 15 are, for example, circular, and are located at (or near) a second focal point F2 of the first reflecting surface 11 and a second focal point F2 of the second reflecting surface 12. Are located.
【０００５】一方、前記第１導光材２及び第２導光材
は、例えば断面円形をなし、前記入射端２０が前記第１
投光口１４及び第２投光口１５にそれぞれ接続されてお
り、かつ、前記出射端２１が車両の前方の左右両側にそ
れぞれ配置されている。前記第１導光材２及び第２導光
材は、前記１個の光源１３からの光であって前記第１反
射面１１及び前記第２反射面１２で反射された光を前記
第１投光口１４及び前記第２投光口１５を経て前記入射
端２０に入射させ、その入射させた光を導いて前記出射
端２１から出射させるものである。On the other hand, the first light guide member 2 and the second light guide member have, for example, circular cross sections, and the incident end 20 is the first light guide member.
The light-emitting port 14 is connected to the light-emitting port 14 and the second light-emitting port 15, respectively, and the light-emitting ends 21 are respectively disposed on the left and right sides in front of the vehicle. The first light guide member 2 and the second light guide member transmit the light from the one light source 13 reflected by the first reflection surface 11 and the second reflection surface 12 to the first light guide member. The light enters the incident end 20 through the light port 14 and the second light emitting port 15, guides the incident light, and emits the light from the emission end 21.
【０００６】そして、上述の従来の車両用前照灯装置
は、前記第１導光材２及び第２導光材の出射端２１から
出射された光を、図示していない光学デバイスを経て所
定の配光パターンで車両の前方に照射させるものであ
る。上述の車両用前照灯装置としては、例えば、特開平
７−２１８０１号公報、特開平８−４３６３８号公報、
特開平８−１６７３０１号公報、等々が有る。In the above-described conventional vehicle headlight device, the light emitted from the emission ends 21 of the first light guide member 2 and the second light guide member is transmitted through a predetermined optical device (not shown). The light distribution pattern is applied to the front of the vehicle. As the vehicle headlight device described above, for example, JP-A-7-21801, JP-A-8-43638,
JP-A-8-167301, and the like.
【０００７】[0007]
【発明が解決しようとする課題】ところが、上述の従来
の車両用前照灯装置に使用される光源装置１は、第１反
射面１１及び第２反射面１２に第２投光口１５及び第１
投光口１４が設けられているものであるから、この光源
装置１の前記第１投光口１４及び前記第２投光口１５か
ら投出される光は、図９に示すように、ほぼ楕円形状の
中央部の無光部（白抜き部分）Ｄと、前記無光部Ｄの周
囲のほぼ楕円環状形状の高照度光部（格子部分）ＨＩ
（特に、高照度光部ＨＩのうち、無光部Ｄの上下の部分
の光が強い）と、前記高照度光部ＨＩの周囲のほぼ繭形
状の低照度光部（斜線部分）ＬＯとから構成された配光
パターンＰが得られるものである。このために、断面円
形の前記第１導光材２及び第２導光材の出射端２１側に
プロジェクタレンズ３をただ単に配置しただけでは、図
１２に示すように、中央部に無光部Ｄを有する配光パタ
ーンＰが得られるだけであって、車両用前照灯装置とし
て使用できない。この結果、上述の従来の車両用前照灯
装置は、プロジェクタレンズ３以外に中央部の無光部Ｄ
を無くすための光学デバイスを必要とする。However, the light source device 1 used in the above-mentioned conventional vehicle headlight device has a first light emitting surface 15 and a second light emitting opening 15 on the first and second reflecting surfaces 11 and 12, respectively. 1
Since the light projecting port 14 is provided, light emitted from the first light projecting port 14 and the second light projecting port 15 of the light source device 1 is substantially elliptical as shown in FIG. A non-light portion (open portion) D at the center of the shape and a high illuminance light portion (lattice portion) HI having a substantially elliptical annular shape around the non-light portion D
(Especially, of the high illuminance light portion HI, light in the upper and lower portions of the non-light portion D is strong) and the low illuminance light portion (hatched portion) LO having a substantially cocoon shape around the high illuminance light portion HI. The configured light distribution pattern P is obtained. For this reason, simply arranging the projector lens 3 on the emission end 21 side of the first light guide member 2 and the second light guide member having a circular cross section, as shown in FIG. Only a light distribution pattern P having D can be obtained, and cannot be used as a vehicle headlight device. As a result, the above-described conventional vehicle headlight device has a central non-light portion D in addition to the projector lens 3.
Requires an optical device to eliminate the problem.
【０００８】本発明目的とするところは、部品点数が少
なくて済む車両用前照灯装置を提供しようとするもので
ある。It is an object of the present invention to provide a vehicle headlight device which requires a small number of parts.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、断面ほぼ楕円形状をなす第１導光材及
び第２導光材を使用する、ことを特徴とする。この結
果、本発明の車両用前照灯装置は、上記の構成により、
第１導光材及び第２導光材の入射端の短軸方向側に入射
した光は第１導光材及び第２導光材の出射端の中央部側
に集中し、一方、第１導光材及び第２導光材の入射端の
長軸方向側に入射した光は第１導光材及び第２導光材の
出射端の両端部側に拡散する。このために、断面ほぼ楕
円形状をなす第１導光材及び第２導光材の出射端から出
射される光は、水平方向に広範囲に照射する配光パター
ンとその配光パターンのほぼ中央部の高照度のホットゾ
ーンとが同時に形成されることとなるでの、中央部の無
光部を無くすための光学デバイスが不要であり、その分
部品点数が少なくて済む。In order to achieve the above object, the present invention is characterized in that a first light guide and a second light guide having substantially elliptical cross sections are used. As a result, the vehicle headlight device of the present invention has the above configuration,
Light incident on the short-axis direction side of the incident ends of the first light guide member and the second light guide member is concentrated on the central portion side of the exit ends of the first light guide member and the second light guide member. The light incident on the major axis side of the incident ends of the light guide member and the second light guide member is diffused to both end portions of the output ends of the first light guide member and the second light guide member. For this reason, the light emitted from the emission ends of the first light guide member and the second light guide member having a substantially elliptical cross section is a light distribution pattern for irradiating a wide range in the horizontal direction and a substantially central portion of the light distribution pattern. Since the hot zone with high illuminance is formed at the same time, an optical device for eliminating the non-light portion at the center is unnecessary, and the number of parts is reduced accordingly.
【００１０】[0010]
【発明の実施の形態】以下、本発明の車両用前照灯装置
の実施形態のうちの３例を図１乃至図８を参照して説明
する。図１乃至図４は本発明の車両用前照灯装置の第１
実施形態を示す。図中、図９乃至図１２と同符号は同一
のものを示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Three embodiments of a vehicle headlight device according to the present invention will be described below with reference to FIGS. FIGS. 1 to 4 show a first embodiment of a vehicle headlight device according to the present invention.
1 shows an embodiment. In the drawings, the same reference numerals as those in FIGS. 9 to 12 denote the same components.
【００１１】図において、４は第１導光材である。この
第１導光材４は、断面ほぼ楕円形状をなす。なお、図示
していないが、第２導光材も上述の第１導光材４と同様
に、断面ほぼ楕円形状をなす。また、この第１導光材４
及び第２導光材の断面形状は、入射端４０から出射端４
１に亘って同一のほぼ断面形状をなす。この第１導光材
４及び第２導光材の入射端４０は、光源装置１の第１投
光口１４及び第２投光口１５にそれぞれ接続されてお
り、かつ、この第１導光材４及び第２導光材の出射端４
１は車両の前方の左右両側にそれぞれ配置されている。
この第１導光材４及び第２導光材は、入射端４０及び出
射端４１の長手方向が水平方向に合致するように、配置
されている。In FIG. 1, reference numeral 4 denotes a first light guide member. The first light guide member 4 has a substantially elliptical cross section. Although not shown, the second light guide member has a substantially elliptical cross section, similarly to the first light guide member 4 described above. The first light guide 4
And the cross-sectional shape of the second light guide material is from the input end 40 to the output end 4.
1 have substantially the same cross-sectional shape. The incident ends 40 of the first light guide member 4 and the second light guide member are connected to the first light projecting port 14 and the second light projecting port 15 of the light source device 1, respectively. Material 4 and exit end 4 of second light guide material
Numerals 1 are respectively arranged on the left and right sides in front of the vehicle.
The first light guide member 4 and the second light guide member are arranged such that the longitudinal direction of the incident end 40 and the output end 41 coincides with the horizontal direction.
【００１２】この実施形態における本発明の車両用前照
灯装置は、上記の如き構成からなるものであるから、第
１導光材４及び第２導光材の入射端４０の短軸方向側に
入射した光は、図２及び図４に示すように、第１導光材
４及び第２導光材の出射端４１の中央部側（図４中格子
部分）に集中し、一方、第１導光材４及び第２導光材の
入射端４０の長軸方向側に入射した光は、図３及び図４
に示すように、第１導光材４及び第２導光材の出射端４
１の両端部側（図４中の斜線部分）に拡散する。このた
めに、断面ほぼ楕円形状をなす第１導光材４及び第２導
光材の出射端４１から出射され、かつプロジェクタレン
ズ３を経た光は、図１に示すように、水平方向に広範囲
に照射する配光パターンＰＷとその配光パターンＰＷの
ほぼ中央部の高照度のホットゾーンＨＺとが同時に形成
されることとなるでの、中央部の無光部を無くすための
光学デバイスが不要であり、その分部品点数が少なくて
済む。なお、この第１実施形態における本発明の車両用
前照灯装置は、図１に示すように、走行用の配光パター
ンＰ１が得られる。Since the vehicle headlight device of the present invention in this embodiment has the above-described configuration, the short-axis direction side of the entrance end 40 of the first light guide member 4 and the second light guide member. As shown in FIGS. 2 and 4, the light incident on the central portion (the lattice portion in FIG. 4) of the emission ends 41 of the first light guide member 4 and the second light guide member is concentrated. The light incident on the long axis direction side of the incident end 40 of the first light guide member 4 and the second light guide member is shown in FIGS.
As shown in FIG. 3, the first light guide member 4 and the emission end 4 of the second light guide member 4
1 are spread to both end sides (shaded portions in FIG. 4). For this reason, as shown in FIG. 1, the light emitted from the emission ends 41 of the first light guide member 4 and the second light guide member having substantially elliptical cross sections and having passed through the projector lens 3 has a wide area in the horizontal direction as shown in FIG. A light distribution pattern PW for irradiating light and a hot zone HZ of high illuminance at a substantially central portion of the light distribution pattern PW are formed at the same time, so that an optical device for eliminating a lightless portion at the central portion is unnecessary. Therefore, the number of parts can be reduced accordingly. In addition, in the vehicle headlight device of the present invention in the first embodiment, as shown in FIG. 1, a light distribution pattern P1 for traveling is obtained.
【００１３】図５及び図６は本発明の車両用前照灯装置
の第２実施形態を示す。図中、図１乃至図４及び図９乃
至図１２と同符号は同一のものを示す。この第２実施形
態における本発明の車両用前照灯装置は、第１導光材４
及び第２導光材の出射端４１にシェード５が配置された
ものである。このシェード５は、上縁に、低水平カット
ライン５０、斜カットライン５１、高水平カットライン
５２がそれぞれ形成されている。この第２実施形態にお
ける本発明の車両用前照灯装置は、カットライン５０、
５１、５２を有するシェード５の作用により、図５に示
すように、すれ違い用の配光パターンＰ２が得られる。FIGS. 5 and 6 show a second embodiment of a vehicle headlight device according to the present invention. In the drawings, the same reference numerals as those in FIGS. 1 to 4 and 9 to 12 denote the same components. The vehicle headlight device of the present invention in the second embodiment includes a first light guide member 4.
In addition, the shade 5 is disposed at the emission end 41 of the second light guide member. The shade 5 has a low horizontal cut line 50, an oblique cut line 51, and a high horizontal cut line 52 formed at the upper edge. The vehicle headlight device of the present invention in the second embodiment includes a cut line 50,
By the action of the shade 5 having 51 and 52, a light distribution pattern P2 for passing is obtained as shown in FIG.
【００１４】図７は本発明の車両用前照灯装置の第３実
施形態を示す。図中、図１乃至図６及び図９乃至図１２
と同符号は同一のものを示す。この第３実施形態におけ
る本発明の車両用前照灯装置は、プロジェクタレンズ３
を光軸Ｚ−Ｚに対して下方に振り向けたものである。こ
の結果、この第３実施形態における本発明の車両用前照
灯装置は、図７示すように、ワイド用（補助前照灯のフ
ォグランプ用）の配光パターンＰ３が得られる。FIG. 7 shows a third embodiment of the vehicle headlight device according to the present invention. In the figures, FIGS. 1 to 6 and 9 to 12
The same reference numerals denote the same components. The vehicle headlight device of the present invention in the third embodiment includes a projector lens 3
Is directed downward with respect to the optical axis Z-Z. As a result, in the vehicle headlight device of the present invention in the third embodiment, as shown in FIG. 7, a light distribution pattern P3 for wide (for a fog lamp of an auxiliary headlight) is obtained.
【００１５】図８は導光材の具体例を示した一部斜視図
である。第１導光材４及び第２導光材は、１本の光ファ
イバー６、７の１本のコア材６０、７０から構成されて
いるものである。すなわち、図８（Ａ）に示す光ファイ
バー６は、楕円筒形状をなすジャケット６１中に第１導
光材４及び第２導光材のコア材６０を挿通し、そのジャ
ケット６１とコア材６０との間に形成される空隙にクラ
ッド材６２を充填してなるものである。また、図８
（Ｂ）に示す光ファイバー７は、円筒形状をなすジャケ
ット７１中に第１導光材４及び第２導光材のコア材７０
を挿通し、そのジャケット７１とコア材７０との間に形
成される空隙にクラッド材７２を充填してなるものであ
る。FIG. 8 is a partial perspective view showing a specific example of the light guide member. The first light guide 4 and the second light guide are composed of one core material 60, 70 of one optical fiber 6, 7. That is, in the optical fiber 6 shown in FIG. 8A, the core material 60 of the first light guide member 4 and the second light guide member is inserted into a jacket 61 having an elliptic cylindrical shape. The gap formed therebetween is filled with the clad material 62. FIG.
The optical fiber 7 shown in (B) has a first light guide 4 and a second light guide core 70 in a jacket 71 having a cylindrical shape.
And a gap formed between the jacket 71 and the core material 70 is filled with a clad material 72.
【００１６】[0016]
【発明の効果】以上述べたように、本発明の車両用前照
灯装置は、断面ほぼ楕円形状をなす第１導光材及び第２
導光材を使用するものであるから、第１導光材及び第２
導光材の入射端の短軸方向側に入射した光は第１導光材
及び第２導光材の出射端の中央部側に集中し、一方、第
１導光材及び第２導光材の入射端の長軸方向側に入射し
た光は第１導光材及び第２導光材の出射端の両端部側に
拡散する。このために、断面ほぼ楕円形状をなす第１導
光材及び第２導光材の出射端から出射される光は、水平
方向に広範囲に照射する配光パターンとその配光パター
ンのほぼ中央部の高照度のホットゾーンとが同時に形成
されることとなるでの、中央部の無光部を無くすための
光学デバイスが不要であり、その分部品点数が少なくて
済む。As described above, the vehicular headlamp according to the present invention comprises a first light guide member and a second light guide member having a substantially elliptical cross section.
Since the light guide is used, the first light guide and the second light guide are used.
Light incident on the short-axis direction side of the incident end of the light guide is concentrated on the central part of the exit end of the first light guide and the second light guide, while the first light guide and the second light guide are concentrated. The light incident on the long axis direction side of the incident end of the material is diffused to both end portions of the emission ends of the first light guide material and the second light guide material. For this reason, the light emitted from the emission ends of the first light guide member and the second light guide member having a substantially elliptical cross section is a light distribution pattern for irradiating a wide range in the horizontal direction and a substantially central portion of the light distribution pattern. Since the hot zone with high illuminance is formed at the same time, an optical device for eliminating the non-light portion at the center is unnecessary, and the number of parts is reduced accordingly.
【図１】本発明の車両用前照灯装置の第１実施形態を示
し、模式的に描いた斜視図である。FIG. 1 is a schematic perspective view showing a first embodiment of a vehicle headlight device according to the present invention.
【図２】図１におけるＩＩ矢視図である。FIG. 2 is a view taken in the direction of the arrow II in FIG.
【図３】同じく、図１におけるＩＩＩ矢視図である。FIG. 3 is a view taken in the direction of the arrow III in FIG.
【図４】同じく、図１におけるＩＶ矢視図である。FIG. 4 is a view taken in the direction of the arrow IV in FIG.
【図５】本発明の車両用前照灯装置の第２実施形態を示
し、模式的に描いた斜視図である。FIG. 5 is a perspective view schematically showing a second embodiment of the vehicle headlight device according to the present invention.
【図６】図５におけるＶＩ矢視図である。FIG. 6 is a view taken in the direction of arrow VI in FIG. 5;
【図７】本発明の車両用前照灯装置の第３実施形態を示
し、模式的に描いた斜視図である。FIG. 7 is a perspective view schematically illustrating a third embodiment of the vehicle headlight device according to the present invention.
【図８】（Ａ）及び（Ｂ）は本発明の車両用前照灯装置
の第１導光材及び第２導光材の具体例を示した一部斜視
図である。FIGS. 8A and 8B are partial perspective views showing specific examples of a first light guide member and a second light guide member of the vehicle headlight device of the present invention.
【図９】従来の車両用前照灯装置を示し、光源装置から
投光された配光パターンを模式的に描いた斜視図であ
る。FIG. 9 is a perspective view schematically showing a light distribution pattern projected from a light source device, showing a conventional vehicle headlight device.
【図１０】図９の光源装置を光軸を含む平面で切断した
縦断面図である。10 is a longitudinal sectional view of the light source device of FIG. 9 cut along a plane including an optical axis.
【図１１】同じく、図９の光源装置を光軸に対して直交
する平面で切断した縦断面図である。11 is a longitudinal sectional view of the light source device of FIG. 9 cut along a plane orthogonal to the optical axis.
【図１２】従来の車両用前照灯装置を模式的に描いた斜
視図である。FIG. 12 is a perspective view schematically depicting a conventional vehicle headlight device.
１…光源装置、１０…ケーシング、１１…第１反射面、
１２…第２反射面、１３…１個の光源、１３０…発光
部、１４…第１投光口、１５…第２投光口、Ｆ１…第１
焦点、Ｆ２、Ｆ２…第２焦点、Ｄ…中央部の無光部、Ｈ
Ｉ…高照度光部、ＬＯ…低照度光部、Ｐ…配光パター
ン、２…第１導光材、２０…入射端、２１…出射端、３
…プロジェクタレンズ、４…第１導光材、４０…入射
端、４１…出射端、ＰＷ…水平方向に広範囲に照射する
配光パターン、ＨＺ…ホットゾーン、Ｐ１…走行用の配
光パターン、５…シェード、５０、５１、５２…カット
ライン、Ｐ２…すれ違い用の配光パターン、Ｐ３…ワイ
ド用の配光パターン、６、７…光ファイバー、６０、７
０…コア材（第１導光材及び第２導光材）、６１、７１
…ジャケット、６２、７２…クラッド材。DESCRIPTION OF SYMBOLS 1 ... Light source device, 10 ... Casing, 11 ... 1st reflection surface,
12: second reflecting surface, 13: one light source, 130: light emitting unit, 14: first light emitting port, 15: second light emitting port, F1: first
Focus, F2, F2: Second focus, D: No light part at center, H
I: high illuminance light portion, LO: low illuminance light portion, P: light distribution pattern, 2: first light guide material, 20: incident end, 21: emission end, 3
... Projector lens, 4 ... First light guide, 40 ... Incoming end, 41 ... Outgoing end, PW ... Light distribution pattern for irradiating a wide range in the horizontal direction, HZ ... Hot zone, P1 ... Light distribution pattern for traveling, 5 ... Shade, 50, 51, 52 ... Cut line, P2 ... Light distribution pattern for passing, P3 ... Light distribution pattern for wide, 6, 7 ... Optical fiber, 60, 7
0: core material (first light guide material and second light guide material), 61, 71
... jacket, 62, 72 ... clad material.
Claims (6)
射端と出射端をそれぞれ有する第１導光材及び第２導光
材の２本の導光材とを備え、 前記光源装置は、中空形状のケーシングと、前記ケーシ
ングの内面にそれぞれ設けられた第１反射面及び第２反
射面と、前記ケーシング内に配置された１個の光源と、
前記第１反射面及び前記第２反射面に設けられた第２投
光口及び第１投光口とから構成されてなるものであり、 前記第１導光材及び第２導光材は、前記入射端が前記第
１投光口及び第２投光口にそれぞれ接続されており、前
記１個の光源からの光であって前記第１反射面及び前記
第２反射面で反射された光を前記第１投光口及び前記第
２投光口を経て前記入射端に入射させ、その入射させた
光を導いて前記出射端から出射させるものである、 車両用前照灯装置において、 前記第１導光材及び前記第２導光材は、水平方向に広範
囲に照射する配光パターンとその配光パターンのほぼ中
央部の高照度のホットゾーンとが同時に形成されるため
に、断面ほぼ楕円形状をなす、 ことを特徴とする車両用前照灯装置。1. A light source device, comprising: a light source device mounted on a vehicle; and two light guide members, a first light guide member and a second light guide member, each having an input end and an output end. Is a hollow casing, a first reflecting surface and a second reflecting surface respectively provided on the inner surface of the casing, and one light source disposed in the casing,
The first light-guiding material and the second light-guiding material are composed of a second light-emitting opening and a first light-emitting opening provided on the first reflection surface and the second reflection surface, respectively. The incident ends are respectively connected to the first light emitting port and the second light emitting port, and light from the one light source is reflected by the first reflecting surface and the second reflecting surface. Through the first light-emitting opening and the second light-emitting opening to the incident end, guides the incident light, and emits the light from the emission end. The first light guide material and the second light guide material have a cross-section substantially formed because a light distribution pattern for irradiating a wide range in the horizontal direction and a high illuminance hot zone substantially at the center of the light distribution pattern are simultaneously formed. A vehicle headlight device having an elliptical shape.
第１焦点が共通な１点に若しくは１点の近傍にそれぞれ
位置する回転楕円面の一部から構成されており、 前記１個の光源は、放電灯から構成されており、前記第
１反射面及び前記第２反射面の長軸方向に対して直交す
る方向にかつ水平方向に配置され、発光部が前記第１焦
点若しくはその近傍に配置されており、 前記第１投光口及び第２投光口は、前記第１反射面及び
前記第２反射面の第２焦点若しくはその近傍に配置され
ており、 前記第１投光口及び前記第２投光口から投出する光は、
中央部の無光部と、前記無光部の周囲の高照度光部と、
前記高照度光部の周囲の低照度光部とから構成されてお
り、 前記第１導光材及び第２導光材は、前記入射端及び前記
出射端の長手方向が水平方向に合致するように、配置さ
れている、 ことを特徴とする請求項１に記載の車両用前照灯装置。2. The first reflection surface and the second reflection surface,
The first focal point is constituted by a part of a spheroidal surface located at or near a common point, and the one light source is constituted by a discharge lamp, and the first reflecting surface is provided. And a light emitting unit is disposed in a direction orthogonal to a major axis direction of the second reflection surface and in a horizontal direction, and a light emitting unit is disposed at or near the first focal point. The light port is disposed at or near a second focal point of the first reflection surface and the second reflection surface, and light emitted from the first light projection port and the second light projection port is:
A non-light portion at the center, a high-illuminance light portion around the non-light portion,
The first light guide member and the second light guide member are configured such that the longitudinal direction of the incident end and the output end coincides with the horizontal direction. The vehicle headlight device according to claim 1, wherein the vehicle headlight device is disposed in the vehicle.
側には、走行用の配光パターンが得られるためのプロジ
ェクタレンズが配置されている、 ことを特徴とする請求項１又は２に記載の車両用前照灯
装置。3. A projector lens for obtaining a traveling light distribution pattern is disposed on an emission end side of each of the first light guide member and the second light guide member. The vehicle headlight device according to claim 1 or 2.
側には、すれ違い用の配光パターンが得られるためのシ
ェード及びプロジェクタレンズが配置されている、 ことを特徴とする請求項１又は２に記載の車両用前照灯
装置。4. A shade and a projector lens for obtaining a light distribution pattern for passing each other are disposed on the emission end sides of the first light guide member and the second light guide member. The vehicle headlight device according to claim 1.
側には、ワイド用の配光パターンが得られるためのプロ
ジェクタレンズが配置されている、 ことを特徴とする請求項１又は２に記載の車両用前照灯
装置。5. A projector lens for obtaining a wide light distribution pattern is provided at an output end side of each of the first light guide member and the second light guide member. The vehicle headlight device according to claim 1 or 2.
ァイバーのコア材から構成されている、 ことを特徴とする請求項１又は２又は３又は４又は５に
記載の車両用前照灯装置。6. The vehicle according to claim 1, wherein the first light guide member and the second light guide member are formed of a core material of an optical fiber. Headlight device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16718298A JP3941234B2 (en) | 1998-06-15 | 1998-06-15 | Vehicle headlamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16718298A JP3941234B2 (en) | 1998-06-15 | 1998-06-15 | Vehicle headlamp device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000003605A true JP2000003605A (en) | 2000-01-07 |
| JP3941234B2 JP3941234B2 (en) | 2007-07-04 |
Family
ID=15844956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16718298A Expired - Fee Related JP3941234B2 (en) | 1998-06-15 | 1998-06-15 | Vehicle headlamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3941234B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006066399A (en) * | 2004-08-27 | 2006-03-09 | Osram Opto Semiconductors Gmbh | Illuminating means and primary optical element |
| JP2006521667A (en) * | 2003-03-31 | 2006-09-21 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Light projecting device and light projecting element |
| JP2009199752A (en) * | 2008-02-19 | 2009-09-03 | Panasonic Corp | Head lamp for vehicle |
| JP2015005393A (en) * | 2013-06-20 | 2015-01-08 | スタンレー電気株式会社 | Vehicle headlamp and optical fiber used in vehicle headlamp |
| WO2015004905A1 (en) * | 2013-07-10 | 2015-01-15 | 三菱電機株式会社 | Headlamp unit and headlamp |
| JP2018519641A (en) * | 2015-06-30 | 2018-07-19 | ツェットカーヴェー グループ ゲーエムベーハー | Light emitting module for vehicle floodlight |
-
1998
- 1998-06-15 JP JP16718298A patent/JP3941234B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006521667A (en) * | 2003-03-31 | 2006-09-21 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Light projecting device and light projecting element |
| JP2006066399A (en) * | 2004-08-27 | 2006-03-09 | Osram Opto Semiconductors Gmbh | Illuminating means and primary optical element |
| JP2009199752A (en) * | 2008-02-19 | 2009-09-03 | Panasonic Corp | Head lamp for vehicle |
| JP4676506B2 (en) * | 2008-02-19 | 2011-04-27 | パナソニック株式会社 | Vehicle headlamp |
| JP2015005393A (en) * | 2013-06-20 | 2015-01-08 | スタンレー電気株式会社 | Vehicle headlamp and optical fiber used in vehicle headlamp |
| WO2015004905A1 (en) * | 2013-07-10 | 2015-01-15 | 三菱電機株式会社 | Headlamp unit and headlamp |
| US10336240B2 (en) | 2013-07-10 | 2019-07-02 | Mitsubishi Electric Corporation | Headlight unit and headlight |
| JP2018519641A (en) * | 2015-06-30 | 2018-07-19 | ツェットカーヴェー グループ ゲーエムベーハー | Light emitting module for vehicle floodlight |
| US10371335B2 (en) | 2015-06-30 | 2019-08-06 | Zkw Group Gmbh | Lighting module for a vehicle headlamp |
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| Publication number | Publication date |
|---|---|
| JP3941234B2 (en) | 2007-07-04 |
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