JPH0760601B2 - Vehicle headlights - Google Patents
Vehicle headlightsInfo
- Publication number
- JPH0760601B2 JPH0760601B2 JP63046923A JP4692388A JPH0760601B2 JP H0760601 B2 JPH0760601 B2 JP H0760601B2 JP 63046923 A JP63046923 A JP 63046923A JP 4692388 A JP4692388 A JP 4692388A JP H0760601 B2 JPH0760601 B2 JP H0760601B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding plate
- end surface
- projection lens
- reflecting mirror
- 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 - Lifetime
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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
【発明の詳細な説明】 本発明車輌用前照灯を以下の項目に従って説明する。DETAILED DESCRIPTION OF THE INVENTION The vehicle headlamp of the present invention will be described in accordance with the following items.
A.産業上の利用分野 B.発明の概要 C.従来技術［第５図、第６図］ D.発明が解決しようとする問題点［第５図、第７図］ E.問題点を解決するための手段 F.実施例［第１図乃至第４図］ a.反射鏡［第１図、第２図］ b.光源［第１図、第２図］ c.遮光板［第１図乃至第３図］ d.投影レンズ［第１図乃至第３図］ e.作用［第３図］ f.遮光板の変形例［第４図］ G.発明の効果 （A.産業上の利用分野） 本発明は新規な車輌用前照灯に関する。詳しくは、反射
鏡によって光源からの光を前方に集光させ、該集光部の
付近に光の一部をカットする遮光板を配置し、該遮光板
と該部分の光のまとまりを投影レンズによって前方に投
影することによって所望の配光パターンを得るようにし
た車輌用前照灯であって、配光に色成分の片寄りが生じ
ないようにすると共に、遮光板によるカットバターンが
明確に出るようにした新規な車輌用前照灯を提供しよう
とするものである。A. Industrial fields of use B. Overview of the invention C. Prior art [Figs. 5 and 6] D. Problems to be solved by the invention [Figs. 5 and 7] E. Solving problems Means for achieving F. Embodiment [Figs. 1 to 4] a. Reflecting mirror [Figs. 1 and 2] b. Light source [Figs. 1 and 2] c. Light-shielding plate [Fig. 1] To FIG. 3] d. Projection lens [FIGS. 1 to 3] e. Action [FIG. 3] f. Modified example of the light shielding plate [FIG. 4] G. Effects of the invention (A. Industrial use FIELD The present invention relates to a novel vehicle headlight. Specifically, a light reflector is used to collect light from a light source forward by a reflecting mirror, and a light shielding plate for cutting off a part of the light is arranged in the vicinity of the light condensing portion. It is a vehicle headlamp that obtains a desired light distribution pattern by projecting forward with a light source that prevents deviation of color components in the light distribution and that the cut pattern by the light shielding plate is clear. It is intended to provide a new vehicle headlight that is set to go out.
（B.発明の概要） 本発明車輌用前照灯は、反射鏡の第２集光部付近に配置
される遮光板の上端面を反射鏡の前後方向に沿う凸曲面
に形成し、遮光板の前方に配置される投影レンズの可視
光のうち略中間の波長の色に対する焦点を遮光板の上端
面の前後方向における中央部に位置させ、これによっ
て、配光に色成分の片寄りや部分的な、特に配光パター
ンの上縁や下縁における色のにじみを無くすと共に、遮
光板によるカットパターンが配光パターン上に明確に出
るようにすることができる。(B. Overview of the Invention) A vehicle headlamp according to the present invention has an upper end surface of a light-shielding plate arranged near a second condensing portion of a reflecting mirror formed into a convex curved surface along the front-rear direction of the reflecting mirror. Of the visible light of the projection lens disposed in front of the light source is positioned at the center of the upper end surface of the light shielding plate in the front-rear direction, and thereby the deviation or part of the color component is distributed in the light distribution. In particular, it is possible to eliminate color bleeding at the upper edge and the lower edge of the light distribution pattern, and to make the cut pattern by the light shielding plate clearly appear on the light distribution pattern.
（C.従来技術）［第５図、第６図］ 車輌用前照灯に第１集光部と第２集光部を有する反射鏡
を使用したものがある。(C. Prior Art) [FIGS. 5 and 6] Some vehicle headlamps use a reflecting mirror having a first light collecting portion and a second light collecting portion.
第５図はそのようなタイプの車輌用前照灯の一列ａを示
すものである。FIG. 5 shows a row a of such a type of vehicle headlamp.
ｂは第１集光部と第２集光部とを有する反射鏡、例え
ば、回転楕円面を為す反射面ｃを有する反射鏡である。
そして、この反射鏡ｂの第１集光部、即ち、第１焦点F1
にフィラメントｄが配置されている。従って、フィラメ
ントｄから出射し、反射鏡ｂの反射面ｃで反射された光
は第２集光部、即ち、第２焦点F2に集光する。Reference numeral b denotes a reflecting mirror having a first condensing portion and a second condensing portion, for example, a reflecting mirror having a reflecting surface c forming a spheroidal surface.
Then, the first focusing portion of the reflecting mirror b, that is, the first focus F 1
The filament d is arranged in the. Therefore, the light emitted from the filament d and reflected by the reflecting surface c of the reflecting mirror b is condensed at the second condensing portion, that is, the second focal point F 2 .
ｅは反射鏡ｂの光軸ｘ−ｘに対して略垂直な向きで配置
された遮光板であり、その上端面ｆは反射鏡ｂの第２焦
点F2近くで光軸ｘ−ｘに近接して位置されている。Reference numeral e denotes a light shielding plate arranged in a direction substantially perpendicular to the optical axis xx of the reflecting mirror b, and its upper end surface f is close to the optical axis xx near the second focal point F 2 of the reflecting mirror b. Is located.
ｇは遮光板ｅの前方に配置された投影レンズであり、そ
の焦点Fcは遮光板ｅの上端面ｆに位置している。Reference numeral g denotes a projection lens arranged in front of the light shielding plate e, and its focus Fc is located on the upper end surface f of the light shielding plate e.
上記のような車輌用灯具ａにあっては、フィラメントｄ
から出射し反射面ｃで反射された光が一旦第２焦点F2で
集光した後前方へ向い集光レンズｇによって前方へ投影
される。即ち、遮光板ｅと遮光板ｅが位置する部分の光
のまとまりとが投影レンズｇによって前方に倒立像とし
て投影される。これによって、上縁ｈが遮光板ｅの上縁
によって限定された第６図に示すような配光パターンｉ
が得られる。In the vehicle lamp a as described above, the filament d
The light that has exited from and is reflected by the reflecting surface c is once condensed at the second focal point F 2 and then projected forward by the condenser lens g that faces forward. That is, the light shield plate e and the light block in the portion where the light shield plate e is located are projected forward as an inverted image by the projection lens g. Thus, the light distribution pattern i as shown in FIG. 6 in which the upper edge h is limited by the upper edge of the light shielding plate e.
Is obtained.
（D.発明が解決しようとする問題点）［第５図、第７
図］ ところで、上記した従来の車輌用前照灯ａにあっては、
配光パターンに色成分の片寄りや部分的な色のにじみ、
特に、配光パターンｉの上縁や下縁における色のにじみ
が生じるという問題があった。(D. Problems to be solved by the invention) [Figs. 5 and 7]
[Fig.] By the way, in the above-described conventional vehicle headlamp a,
Bias of color components or partial color bleeding in the light distribution pattern,
In particular, there is a problem that color bleeding occurs at the upper edge and the lower edge of the light distribution pattern i.
これはレンズには色収差があり、光はレンズを透過する
と分光されるが、その分光角は集光レンズの周辺程大き
くなるとこに起因している。This is because the lens has chromatic aberration and light is dispersed when it passes through the lens, but the spectral angle becomes larger toward the periphery of the condenser lens.
そこで、第７図に示すような遮光板ｊが考えられた。Therefore, a light shielding plate j as shown in FIG. 7 was considered.
即ち、遮光板ｊの上面のうち前縁部ｋと後縁部ｌを残し
て溝ｍを形成し、前縁部ｋが青色光ｎの波長に適合し、
後縁部ｌが赤色光ｏの波長に適合するようにし、両者の
略中間の波長である緑色光ｐに対する焦点が前縁部ｋと
後縁部ｌとの間の略中間に位置するようにしたものであ
る。That is, on the upper surface of the shading plate j, the groove m is formed leaving the front edge portion k and the rear edge portion l, and the front edge portion k is adapted to the wavelength of the blue light n,
The trailing edge l is adapted to the wavelength of the red light o, and the focus for the green light p, which is a wavelength approximately in the middle between the two, is positioned approximately in the middle between the leading edge k and the trailing edge l. It was done.
このような遮光板ｊを使用することにより、配光パター
ン中の色成分の片寄りや部分的な色のにじみは解消され
るが、前縁部ｋと後縁部ｌとの間には何もないため、配
光パターン中の遮光板ｊの上縁によって規定されるカッ
トパターンがいわゆる２重写しのようになってぼやけて
しまうという問題が生じる。By using such a shading plate j, deviation of the color components in the light distribution pattern and partial color bleeding are eliminated, but there is no difference between the front edge part k and the rear edge part l. Therefore, there is a problem that the cut pattern defined by the upper edge of the light-shielding plate j in the light distribution pattern becomes so-called double copy and is blurred.
（E.問題点を解決するための手段） 本発明車輌用前照灯は、上記した問題点を解決するため
に、第１集光部と第２集光部を有する反射鏡と、第１集
光部に配置された光源と、上端面が第２集光部に近接し
て配置された遮光板と、遮光板の前方に配置された投影
レンズとを備えた車輌用前照灯であって、遮光板の上端
面を反射鏡の前後方向に沿う凸曲面に形成し、遮光板の
前方に配置される投影レンズの可視光のうち略中間の波
長の色に対する焦点を遮光板の上端面の前後方向におけ
る中央部に位置させたものである。(E. Means for Solving the Problems) In order to solve the above-mentioned problems, the vehicle headlamp of the present invention includes a reflector having a first light collecting part and a second light collecting part, and a first light collecting part. A vehicle headlamp including a light source arranged in a light collecting section, a light shielding plate having an upper end surface arranged in the vicinity of the second light collecting section, and a projection lens arranged in front of the light shielding plate. The upper end surface of the shading plate is formed into a convex curved surface along the front-back direction of the reflecting mirror, and the focus is focused on the color of the intermediate wavelength of the visible light of the projection lens arranged in front of the shading plate. It is located at the center in the front-back direction.
従って、本発明車輌用前照灯にあっては、遮光板の上端
面のうち前側に位置する青色光の波長に適合した部分か
ら中央の緑色光の波長に適合した部分を経て後側の赤色
光の波長に適合した部分までが投影レンズの下端から上
端までの各点と上記上端面との接点として連続的に変化
しているため、配光パターンが比較的明確に、特に、遮
光板の上端面によるカットパターンが比較的明確に出る
ことになる。Therefore, in the vehicular headlamp of the present invention, in the upper end surface of the light-shielding plate, from the portion corresponding to the wavelength of blue light located on the front side to the red portion on the rear side through the portion corresponding to the wavelength of green light in the center. The light distribution pattern is relatively clear, especially since the light-shielding plate has a contact point between the lower end and the upper end of the projection lens and the contact point with the upper end face. The cut pattern by the upper end surface becomes relatively clear.
（F.実施例）［第１図乃至第４図］ 以下に、本発明車輌用前照灯の詳細を図示した実施例１
に従って説明する。(F. Embodiment) [Figs. 1 to 4] Hereinafter, Embodiment 1 illustrating the details of the vehicle headlamp of the invention will be described.
Follow the instructions below.
（a.反射鏡）［第１図、第２図］ ２は反射鏡であり、回転楕円面をその回転軸（光軸とな
る。）方向において略半截した形状の反射面３を有して
いる。従って、この反射面３は内側の第１焦点F1と外側
の第２焦点F2とを有している。そして、この第１焦点F1
が第１集光部となり、第２焦点F2が第２集光部となる。(A. Reflecting mirror) [FIGS. 1 and 2] 2 is a reflecting mirror, which has a reflecting surface 3 having a shape in which a spheroid is roughly cut in the direction of its axis of rotation (which is the optical axis). There is. Therefore, this reflecting surface 3 has an inner first focal point F 1 and an outer second focal point F 2 . And this first focus F 1
Serves as the first condensing portion, and the second focal point F 2 serves as the second condensing portion.
尚、本発明における反射鏡の反射面は回転楕円形に限ら
ず、光源が配置される第１集光部と、該第１集光部に配
置された光源から発し該反射面で反射された光が前方で
集光する第２集光部を備えたものであれば良い。また、
第２集光部はそこで反射光がスポット状に集光するもの
に限らず、ある程度の拡がり、例えば、横長の拡がりを
もって集光するようなものであっても良い。The reflecting surface of the reflecting mirror in the present invention is not limited to the spheroidal shape, and is emitted from the first condensing portion in which the light source is arranged and the light source arranged in the first condensing portion and reflected by the reflecting surface. What has a second condensing portion that condenses light in the front may be used. Also,
The second condensing portion is not limited to the one in which the reflected light is condensed in a spot shape, but may be such that it condenses with a certain degree of spread, for example, a horizontally long spread.
（b.光源）［第１図、第２図］ ４は光源となるコイル状に形成されたフィラメントであ
り、前記反射面３の光軸ｘ−ｘ上でその略中心が反射面
３の第１焦点F1にあるように配置されている。従って、
このフィラメント４から出射し、反射面３によって反射
した光は先ず第２焦点F2に集光し、それから前方へ出射
されて行く。(B. Light Source) [FIGS. 1 and 2] 4 is a coil-shaped filament that serves as a light source, and the substantially center of the reflection surface 3 is on the optical axis xx of the reflection surface 3. It is arranged so as to be at one focal point F 1 . Therefore,
The light emitted from the filament 4 and reflected by the reflecting surface 3 is first focused on the second focal point F 2 and then emitted forward.
（c.遮光板）［第１図乃至第３図］ ５は遮光板である。そして、この遮光板５は反射面３の
光軸ｘ−ｘに対して略垂直な向きで、かつ、その上端面
６が反射鏡２の光軸ｘ−ｘに略接する状態に配置されて
いる。また、上端面６の左右方向における中央部の前端
が反射面３の第２焦点F2の稍後方に位置されている。(C. Light-shielding plate) [Figs. 1 to 3] 5 is a light-shielding plate. The shading plate 5 is arranged in a direction substantially perpendicular to the optical axis xx of the reflecting surface 3, and the upper end surface 6 thereof is substantially in contact with the optical axis xx of the reflecting mirror 2. . Further, the front end of the center portion of the upper end surface 6 in the left-right direction is located behind the second focal point F 2 of the reflecting surface 3.
この遮光板５の上端面６は前後方向に沿う凸曲面とされ
ている。この凸曲面６は円形又は円形に近い２次曲線に
なっている。The upper end surface 6 of the light shielding plate 5 is a convex curved surface along the front-rear direction. The convex curved surface 6 has a circular shape or a quadratic curve close to a circular shape.
（d.投影レンズ）［第１図乃至第３図］ ７は遮光板５の前方に配置された投影レンズであり、そ
の光軸は反射鏡２の光軸ｘ−ｘと略一致している。そし
て、その焦点は遮光板５の上端面６上に位置している。
更に、詳しく説明すれば、緑色光lGの波長に適合した焦
点FGが上端面６の前後方向における中央に位置し、青色
光lBの波長に適合した焦点FBが上端面６の前端寄りに位
置し、赤色光lRの波長に適合した焦点FRが上端面６の後
端寄りに位置している。そして、緑色光lGの焦点FGは投
影レンズ７の中心から引いた線が上端面６に接する点に
位置し、青色光lBの焦点FBは投影レンズ７の下端から引
いた線が上端面６に接する点に位置し、赤色光lRの焦点
FRは投影レンズ７の上端から引いた線が上端６に接する
点に位置している。(D. Projection lens) [FIGS. 1 to 3] 7 is a projection lens arranged in front of the light shielding plate 5, and its optical axis is substantially coincident with the optical axis xx of the reflecting mirror 2. . The focal point is located on the upper end surface 6 of the light shielding plate 5.
More specifically, the focus F G matching the wavelength of the green light l G is located at the center in the front-rear direction of the upper end surface 6, and the focus F B matching the wavelength of the blue light l B is the front end of the upper end surface 6. The focus F R, which is located nearer to the red light l R and is adapted to the wavelength of the red light l R , is located nearer to the rear end of the upper end surface 6. Then, the focal point F G of the green light l G is located at a point where the line drawn from the center of the projection lens 7 are in contact with the upper end face 6, the focal point F B of the blue light l B is a line drawn from the lower end of the projection lens 7 It is located at the point of contact with the top surface 6 and is the focal point of the red light l R.
F R is located at the point where the line drawn from the upper end of the projection lens 7 contacts the upper end 6.
（e.作用）［第３図］ しかして、上記自動車用前照灯１にあっては、フィラメ
ント４から出射し反射面３で反射された光は第２焦点F2
で集光し、そこから前方へ出射されて行く。そして、こ
の過程で遮光板５が配置された部分を通過するため、前
方へ出射される光による配光パターンの上縁部が遮光板
５の上端面６の形状によって限定される。そして、遮光
板５の位置を通過した光は投影レンズによって前方へ投
影される。(E. Action) [FIG. 3] In the automobile headlamp 1 described above, however, the light emitted from the filament 4 and reflected by the reflecting surface 3 has the second focal point F 2
The light is collected at and is emitted forward from there. Then, in this process, since the light passes through the portion where the light shield plate 5 is arranged, the upper edge portion of the light distribution pattern by the light emitted forward is limited by the shape of the upper end surface 6 of the light shield plate 5. Then, the light passing through the position of the light shielding plate 5 is projected forward by the projection lens.
そして、上記車輌用前照灯１にあっては、投影レンズ７
の各色の光に対する焦点が遮光板５の上端面６上に位置
しているため、しかも、それら焦点は青色光の焦点FBか
ら緑色光の焦点FGを経て赤色光の焦点FRに至るまで連続
的に変化しているため、配光パターン上に遮光板５によ
るカットパターンが明確に出ると共に、色成分の片寄り
や色の部分的なにじみなどが生じない。In the vehicle headlamp 1, the projection lens 7
Since the focal points for the lights of the respective colors are located on the upper end surface 6 of the light shielding plate 5, moreover, the focal points reach from the focal point F B of the blue light to the focal point F G of the green light to the focal point R R of the red light. Since it continuously changes, the cut pattern by the light shielding plate 5 appears clearly on the light distribution pattern, and deviation of the color components and partial blurring of the color do not occur.
（f.遮光板の変形例）［第４図］ 第４図は遮光板の変形例5Aを示したものである。(F. Modified Example of Light Shield) [FIG. 4] FIG. 4 shows a modified example 5A of the light shield.
投影レンズ７には球面収差があり、遮光板が投影レンズ
７の光軸に垂直な方向に真直であると、投影レンズ７の
球面収差により、遮光板の両端部の投影像がボケる。The projection lens 7 has spherical aberration, and if the light blocking plate is straight in the direction perpendicular to the optical axis of the projection lens 7, the spherical aberration of the projection lens 7 causes the projected images at both ends of the light blocking plate to be blurred.
そこで、この変形例による遮光板5Aは投影レンズ７の水
平断面における球面収差に合わせて、その上端面6Aを湾
曲させたものである。Therefore, the light shielding plate 5A according to this modification has its upper end surface 6A curved according to the spherical aberration in the horizontal section of the projection lens 7.
（G.発明の効果） 以上に記載したところから明らかなとおり、本発明車輌
用前照灯は、第１集光部と第２集光部の２つの集光部を
有する反射鏡と、第１集光部に位置した光源と、反射鏡
の前方に反射鏡の光軸と略垂直な向きで上端面が第２集
光部に近接して配置された遮光板と、遮光板の前方に配
置され焦点が遮光板の上端面上に位置した投影レンズと
を備えた車輌用前照灯であって、遮光板の上端面が反射
鏡の前後方向に沿う凸曲面に形成され、可視光のうち略
中間の波長の色に対する投影レンズの焦点が遮光板の上
端面の前後方向における中央に位置したことを特徴とす
る。(G. Effects of the Invention) As is apparent from the above description, the vehicle headlamp of the present invention includes a reflecting mirror having two light collecting parts, a first light collecting part and a second light collecting part. 1 a light source located at the light collecting part, a light blocking plate having an upper end surface arranged in front of the reflecting mirror in a direction substantially perpendicular to the optical axis of the reflecting mirror and close to the second light collecting part, and in front of the light blocking plate A vehicle headlamp having a projection lens disposed and having a focal point located on the upper end surface of a shading plate, wherein the upper end surface of the shading plate is formed into a convex curved surface along the front-back direction of a reflecting mirror, and It is characterized in that the focus of the projection lens for the color of the approximately intermediate wavelength is located at the center of the upper end surface of the light shielding plate in the front-back direction.
従って、本発明車輌用前照灯にあっては、遮光板の上端
面のうち前側に位置する青色光の波長に適合した部分か
ら中央の緑色光の波長に適合した部分を経て後側の赤色
光の波長に適合した部分までが投影レンズの下端から上
端までの各点と上記上端面との接点として連続的に変化
しているため、配光パターンが比較的明確に、特に、遮
光板の上端面によるカットパターンが比較的明確に出る
ことになる。Therefore, in the vehicular headlamp of the present invention, in the upper end surface of the light-shielding plate, from the portion corresponding to the wavelength of blue light located on the front side to the red portion on the rear side through the portion corresponding to the wavelength of green light in the center. The light distribution pattern is relatively clear, especially since the light-shielding plate has a contact point between the lower end and the upper end of the projection lens and the contact point with the upper end face. The cut pattern by the upper end surface becomes relatively clear.
第１図乃至第３図は本発明車輌用前照灯の実施の一例を
示すもので、第１図は概略斜視図、第２図は概略縦断面
図、第３図は要部の拡大縦断面図、第４図は遮光板の変
形例を示す斜視図、第５図および第６図は従来の車輌用
前照灯の一例を示し、第５図は概略縦断面図、第６図は
配光パターン図、第７図は遮光板の改良例を示す要部の
拡大縦断面図である。 符号の説明 １……車輌用前照灯、２……反射鏡、４……光源、５…
…遮光板、６……上端面、７……投影レンズ、5A……遮
光板、6A……上端面、F1……第１集光部、F2……第２集
光部、ｘ−ｘ……反射鏡の光軸、FG……可視光のうち略
中間の波長の色に対する投影レンズの焦点1 to 3 show an example of the implementation of the vehicle headlight of the present invention. FIG. 1 is a schematic perspective view, FIG. 2 is a schematic vertical sectional view, and FIG. FIG. 4 is a perspective view showing a modified example of the light shielding plate, FIGS. 5 and 6 show an example of a conventional vehicle headlight, FIG. 5 is a schematic vertical sectional view, and FIG. FIG. 7 is a light distribution pattern diagram, and FIG. 7 is an enlarged vertical cross-sectional view of a main part showing an improved example of the light shielding plate. Explanation of symbols 1 ... Vehicle headlight, 2 ... Reflector, 4 ... Light source, 5 ...
... light shielding plate, 6 ...... upper end face, 7 ...... projection lens, 5A ...... shielding plate, 6A ...... upper surface, F 1 ...... first condensing section, F 2 ...... second condenser section, x- x: optical axis of reflecting mirror, F G : focus of projection lens for color of intermediate wavelength in visible light
Claims (1)
有する反射鏡と、第１集光部に位置した光源と、反射鏡
の前方に反射鏡の光軸と略垂直な向きで上端面が第２集
光部に近接して配置された遮光板と、遮光板の前方に配
置され焦点が遮光板の上端面上に位置した投影レンズと
を備えた車輌用前照灯であって、 遮光板の上端面が反射鏡の前後方向に沿う凸曲面に形成
され、 可視光のうち略中間の波長の色に対する投影レンズの焦
点が遮光板の上端面の前後方向における中央に位置した ことを特徴とする車輌用前照灯1. A reflector having two condensers, a first condenser and a second condenser, a light source located at the first condenser, and an optical axis of the reflector in front of the reflector. For a vehicle provided with a light-shielding plate whose upper end surface is arranged in a substantially vertical direction in proximity to the second light-collecting portion, and a projection lens which is arranged in front of the light-shielding plate and whose focus is located on the upper end surface of the light-shielding plate. In the headlight, the upper end surface of the shading plate is formed as a convex curved surface along the front-back direction of the reflecting mirror, and the focus of the projection lens for the color of the intermediate wavelength of visible light is the front-back direction of the upper end surface of the shading plate. The vehicle headlamp is characterized by being located in the center of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63046923A JPH0760601B2 (en) | 1988-02-29 | 1988-02-29 | Vehicle headlights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63046923A JPH0760601B2 (en) | 1988-02-29 | 1988-02-29 | Vehicle headlights |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01221801A JPH01221801A (en) | 1989-09-05 |
| JPH0760601B2 true JPH0760601B2 (en) | 1995-06-28 |
Family
ID=12760849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63046923A Expired - Lifetime JPH0760601B2 (en) | 1988-02-29 | 1988-02-29 | Vehicle headlights |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0760601B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4390220A4 (en) * | 2021-08-20 | 2024-12-25 | Koito Manufacturing Co., Ltd. | DRAWING LAMP |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005021695B4 (en) * | 2005-05-11 | 2014-10-09 | Hella Kgaa Hueck & Co. | Projection headlights for vehicles |
| DE102005041196B4 (en) * | 2005-08-31 | 2015-05-13 | Hella Kgaa Hueck & Co. | Projection headlights for vehicles |
| JP5246396B2 (en) * | 2007-12-07 | 2013-07-24 | スタンレー電気株式会社 | Vehicle headlamp |
| JP5544676B2 (en) * | 2009-06-04 | 2014-07-09 | スタンレー電気株式会社 | Vehicle headlamp |
| US8851722B2 (en) | 2010-12-03 | 2014-10-07 | Docter Optics Se | Headlight lens for a vehicle headlight |
| US10107466B2 (en) | 2010-12-03 | 2018-10-23 | Docter Optics Se | Headlight lens for a vehicle headlight |
-
1988
- 1988-02-29 JP JP63046923A patent/JPH0760601B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4390220A4 (en) * | 2021-08-20 | 2024-12-25 | Koito Manufacturing Co., Ltd. | DRAWING LAMP |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01221801A (en) | 1989-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0410165B2 (en) | ||
| JPH07118208B2 (en) | Automotive headlights | |
| JP3964089B2 (en) | Vehicle headlamp | |
| JPH0410166B2 (en) | ||
| JPH0366762B2 (en) | ||
| JP2005044574A (en) | Vehicle lighting | |
| JP2754690B2 (en) | Projector type headlight | |
| JPH01187702A (en) | Headlamp of projector type | |
| JPH0760601B2 (en) | Vehicle headlights | |
| JPH02220301A (en) | Headlamp for automobile | |
| JPH0364962B2 (en) | ||
| JP2517383B2 (en) | Vehicle headlights | |
| JPH046081Y2 (en) | ||
| JPH0410161B2 (en) | ||
| JPH01159901A (en) | Automobile head light | |
| JPH0226321B2 (en) | ||
| JPH01159902A (en) | Automobile head light | |
| JPH0419681Y2 (en) | ||
| JP2517384B2 (en) | Vehicle headlights | |
| JPH0650107U (en) | Projector headlight | |
| JPH01186701A (en) | Headlight of projector type | |
| JPH0646522B2 (en) | Automotive headlights | |
| JPH01276502A (en) | Projector type headlight | |
| JPH01159904A (en) | Projector type head light | |
| JPH0410164B2 (en) |