JPH0410161B2 - - Google Patents
Info
- Publication number
- JPH0410161B2 JPH0410161B2 JP62061771A JP6177187A JPH0410161B2 JP H0410161 B2 JPH0410161 B2 JP H0410161B2 JP 62061771 A JP62061771 A JP 62061771A JP 6177187 A JP6177187 A JP 6177187A JP H0410161 B2 JPH0410161 B2 JP H0410161B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- shielding plate
- light shielding
- focal point
- 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つて説明
する。DETAILED DESCRIPTION OF THE INVENTION The vehicle headlamp of the present invention will be explained 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６図］
Ｄ 発明が解決しようとする問題点［第６図］
Ｅ 問題点を解決するための手段
Ｆ 実施例
Ｆ−１ 第１の実施例［第１図］
ａ 構成
ｂ 作用
Ｆ−２ 第２の実施例［第２図乃至第５図］
ａ 構成［第２図、第３図］
ｂ 作用
ｃ 遮光板の変形例［第４図、第５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、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
射鏡の前方に配置され焦点が反射鏡の略第２集光
部に位置した集光レンズと、反射鏡の光軸と略垂
直な向きでかつ上端面が第２集光部に近接して配
置された遮光板とを備えた車輌用前照灯におい
て、配光に色成分の片寄りが生じないようにした
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 application field B. Summary of the invention C. Prior art [Figure 6] D. Problem to be solved by the invention [Figure 6] E. Means for solving the problem F Example F-1 First Example [Fig. 1] a Structure b Effect F-2 Second embodiment [Figs. 2 to 5] a Structure [Figs. FIG. 5] G. Effects of the invention (A. Field of industrial application) The present invention relates to a novel vehicle headlamp. In detail, a reflecting mirror having two light collecting parts, a first light collecting part and a second light collecting part, a light source located in the first light collecting part, and a light source placed in front of the reflecting mirror and having a focal point on the reflecting mirror. A vehicle headlamp comprising a condensing lens located in a second condensing section, and a light shielding plate that is oriented substantially perpendicular to the optical axis of the reflecting mirror and whose upper end surface is disposed close to the second condensing section. An object of the present invention is to provide a novel vehicle headlamp that prevents unevenness of color components in light distribution.
（Ｂ 発明の概要）
本発明車輌用前照灯は、上記した車輌用前照灯
において、遮光板の上端面を反射面に形成したも
ので、これによつて、集光レンズの上半部にも光
が行くようにして、集光レンズの色収差によつて
集光レンズの片側だけしか使用しない場合に生じ
る配光中の色成分の片寄りを防止することができ
る。(B. Summary of the Invention) The vehicle headlamp of the present invention is the vehicle headlight described above, in which the upper end surface of the light shielding plate is formed as a reflective surface, whereby the upper half of the condenser lens In this way, it is possible to prevent the color components in the light distribution from being biased due to chromatic aberration of the condenser lens, which occurs when only one side of the condenser lens is used.
（Ｃ 従来技術）［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) [Fig. 6] Some vehicle headlights use a reflecting mirror having a first light condensing part and a second light condensing part.
第６図はそのようなタイプの車輌用前照灯の一
例ａを示すものである。 FIG. 6 shows an example a of such a type of vehicle headlamp.
ｂは第１集光部と第２集光部を有する反射鏡、
例えば、回転楕円面を為す反斜面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にフイラメントｄが配置され
ている。従つて、フイラメント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。ｅはフイラメン
トｄの下半部と前面を覆う遮光キヤツプである。
従つて、フイラメントｄから反射鏡ｂの反射面ｃ
の下半部に向う光はこの遮光キヤツプｅによつて
遮られる。 b is a reflecting mirror having a first condensing part and a second condensing part;
For example, it is a reflecting mirror having a reverse slope c forming an ellipsoid of revolution. And the first condensing part of this reflecting mirror b,
That is, the filament d is placed at the first focal point F1 . Therefore, the light emitted from the filament d and reflected by the reflecting surface c of the reflecting mirror b is transmitted to the second condensing section,
That is, the light is focused on the second focal point F2 . e is a light-shielding cap that covers the lower half and front surface of filament d.
Therefore, from the filament d to the reflecting surface c of the reflecting mirror b
Light directed toward the lower half of the frame is blocked by this light-blocking cap e.
ｆ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ｇ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。 f is a light shielding plate arranged substantially perpendicular to the optical axis x-x of the reflecting mirror b, and its upper end surface g is close to the optical axis x-x near the second focal point F2 of the reflecting mirror b. It is well located.
ｈは遮光板ｆの前方に配置された集光レンズで
あり、その焦点FCは略反射鏡ｂの第２焦点F2に
位置している。 h is a condensing lens arranged in front of the light shielding plate f, and its focal point F C is located approximately at the second focal point F 2 of the reflecting mirror b.
上記のような車輌用前照灯ａにあつては、フイ
ラメントｄから出射し反射面ｃの上半部で反射さ
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ｈによつて略平行な光束となつて前
方へ出射される。そして、その配光の上縁は遮光
板ｆの上縁によつて限定される。 In the vehicle headlight a as described above, the light emitted from the filament d and reflected by the upper half of the reflective surface c is once focused at the second focal point F2 and then directed forward through the condensing lens. h, the light beam becomes a substantially parallel light beam and is emitted forward. The upper edge of the light distribution is limited by the upper edge of the light shielding plate f.
（Ｄ 発明が解決しようとする問題点）［第６図］
ところで、上記した従来の車輌用前照灯ａにあ
つては、配光の上縁部が青味がかつてしまうとい
う問題があつた。(D Problem to be solved by the invention) [Figure 6] By the way, the above-mentioned conventional vehicle headlight a had a problem in that the upper edge of the light distribution used to have a bluish tinge. .
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。 Lenses have chromatic aberration, and when light passes through a lens, it is split into separate lights, and the split angle becomes larger towards the periphery of the condenser lens.
ところで、上記した従来の車輌用前照灯ａにあ
つては集光レンズｈの下半部しか使用しないた
め、この分光による色成分の片寄りが極端に現わ
れてしまう。即ち、集光レンズｈの下端近くの分
光を模式的に示したが、青色成分lBが赤色成分lR
より上方へ向う。このため配光パターンの上縁部
が青味がかつてしまうという問題がある。 By the way, in the above-mentioned conventional vehicle headlamp a, only the lower half of the condensing lens h is used, so that the color components due to the spectral light are extremely biased. That is, although the spectrum near the lower end of the condensing lens h is schematically shown, the blue component l B is the red component l R
Head higher. Therefore, there is a problem that the upper edge of the light distribution pattern tends to have a bluish tinge.
（Ｅ 問題点を解決するための手段）
本発明車輌用前照灯は、上記した問題を解決す
るために、遮光板の上端部に光軸に対して平行な
反射面を形成したものである。(E. Means for Solving Problems) In order to solve the above-mentioned problems, the vehicle headlamp of the present invention has a reflective surface parallel to the optical axis formed at the upper end of the light shielding plate. .
従つて、本発明車輌用前照灯にあつては、遮光
板の上端面で反射された光が集光レンズの上半部
へ向うため、集光レンズの上半部でも分光が生
じ、これが集光レンズの下半部で起こる分光と相
殺されるため、配光パターンに色成分の片寄りが
生じることを避けることができる。 Therefore, in the vehicle headlamp of the present invention, since the light reflected from the upper end surface of the light shielding plate is directed toward the upper half of the condenser lens, spectral separation occurs also in the upper half of the condenser lens. Since the light is canceled out by the light that occurs in the lower half of the condenser lens, it is possible to avoid uneven color components in the light distribution pattern.
（Ｆ 実施例）
以下に、本発明車輌用前照灯の詳細を図示した
実施例に従つて説明する。(F. Embodiment) Details of the vehicle headlamp of the present invention will be described below with reference to illustrated embodiments.
（Ｆ−１ 第１の実施例）［第１図］
（ａ 構成）
第１図は本発明車輌用前照灯の第１の実施例１
を示すもので、自動車用前照灯に適用したもので
ある。(F-1 First Example) [Fig. 1] (a Configuration) Fig. 1 shows the first example 1 of the vehicle headlamp of the present invention.
It is applied to automobile headlights.
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。従つて、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。 Reference numeral 2 denotes a reflecting mirror, which has a reflecting surface 3 in the shape of an ellipsoid of revolution substantially half-cut in the direction of its axis of rotation (which becomes the optical axis). Therefore, this reflective surface 3 has an inner first focus F 1 and an outer second focus F 2 .
４はコイル状に形成されたフイラメントであ
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。従つて、このフイラメント４から出射し、
反射面３によつ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。 Reference numeral 4 denotes a filament formed in a coil shape, and is arranged on the optical axis xx of the reflective surface 3 so that its approximate center is at the first focal point F1 of the reflective surface 3. Therefore, the light is emitted from this filament 4,
The light reflected by the reflective surface 3 first reaches the second focal point F 2
The light is focused and then emitted forward.
５は遮光キヤツプであり、前記フイラメント４
の略下半分を覆うように配置されている。従つ
て、フイラメント４から反射面３の下半部に向う
光はこの遮光キヤツプ５によつて遮られることに
なる。 5 is a light-shielding cap, and the filament 4
It is arranged to cover approximately the lower half of the Therefore, light directed from the filament 4 toward the lower half of the reflective surface 3 is blocked by the light-shielding cap 5.
６は遮光板であり、その上端面７が反射面に形
成されている。そして、この遮光板６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７が光軸ｘ−ｘに略接する状態に配置さ
れている。また、上端面７の左右方向における中
央部の前端が反射面３の略第２焦点F2に位置さ
れている。 6 is a light shielding plate, the upper end surface 7 of which is formed as a reflective surface. This light shielding plate 6 has a reflective surface 3.
The optical axis xx is oriented substantially perpendicular to the optical axis x-x, and the upper end surface 7 thereof is arranged substantially in contact with the optical axis x-x. Further, the front end of the central portion of the upper end surface 7 in the left-right direction is located approximately at the second focal point F 2 of the reflective surface 3 .
８は遮光板６の前方に配置された集光レンズで
あり、その焦点FCが反射面３の略第２焦点F2位
置にあるように配置されている。 Reference numeral 8 denotes a condensing lens placed in front of the light shielding plate 6, and is placed so that its focal point F C is approximately at the second focal point F 2 of the reflecting surface 3 .
（ｂ 作用）
しかして、上記自動車用前照灯１にあつては、
フイラメント４から出射し反射面３の上半部で反
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
６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６
の上縁の形状によつて限定される。そして、遮光
板６の位置を通過した光は集光レンズ８によつて
平行光束に近い光束となるように制御されて前方
へ投射される。(B Effect) However, in the case of the above automobile headlamp 1,
The light emitted from the filament 4 and reflected by the upper half of the reflecting surface 3 is focused at the second focal point F2 , and is emitted forward from there. In this process, since the light passes through the part where the light shielding plate 6 is arranged, the upper edge of the light distribution pattern due to the light emitted forward is the light shielding plate 6.
limited by the shape of the upper edge of. The light that has passed through the position of the light shielding plate 6 is controlled by the condenser lens 8 to become a nearly parallel light beam and is projected forward.
尚、フイラメント４は点光源ではなく、ある大
きさを有しているが、それが第２焦点F2部では
実際の大きさよりも大きく結像４′する。そして、
第２焦点F2において最も光束密度が高いため集
光レンズの焦点FCを第２焦点F2に略位置させ、
これに伴ない、遮光板６の配光パターンを限定す
る部分もここに位置されているが、このようにす
ると、従来にあつては、フイラメントの結像４′
の半分を遮蔽することになるため光量が減つてし
まうが、上記自動車用前照灯１にあつては、遮光
板６の上端面７が反射面にされているため、第２
焦点F2でのフイラメント４の結像のうち略後半
分の光束を集光レンズ８の上半部に向けて反射す
ることになり、従来に比して光量を増やすことが
できる。 Although the filament 4 is not a point light source and has a certain size, it is imaged 4' at the second focal point F2 to be larger than the actual size. and,
Since the luminous flux density is highest at the second focal point F 2 , the focal point F C of the condensing lens is positioned approximately at the second focal point F 2 ,
Along with this, the portion that limits the light distribution pattern of the light shielding plate 6 is also located here, but in the past, the image formation 4' of the filament
However, in the automobile headlamp 1 described above, since the upper end surface 7 of the light shielding plate 6 is a reflective surface, the second
Approximately the latter half of the light beam formed by the filament 4 at the focal point F2 is reflected toward the upper half of the condenser lens 8, making it possible to increase the amount of light compared to the conventional method.
また、集光レンズの下半部しか使用しない場合
は、特に集光レンズの下端部での分光により配光
パターンの上縁部が青味が強く、逆に配光パター
ンの下縁部で赤味が強くなるが、上記自動車用前
照灯１にあつては、遮光板６の上端面７で反射さ
れた光が集光レンズ８の上半部に行くため、特に
集光レンズ８の上半部で生じる分光が下端部で起
こる分光と逆の向きとなるため、互いに相殺され
て、配光パターン中における色成分の片寄りが解
消される。 In addition, when only the lower half of the condenser lens is used, the upper edge of the light distribution pattern has a strong bluish tinge, especially due to the spectroscopy at the lower end of the condenser lens, and conversely, the lower edge of the light distribution pattern has a strong red tinge. However, in the case of the above automobile headlamp 1, the light reflected by the upper end surface 7 of the light shielding plate 6 goes to the upper half of the condenser lens 8, so the upper part of the condenser lens 8 is Since the spectral light generated in the half portion is in the opposite direction to the spectral light generated in the lower end, they cancel each other out, and the unbalanced color components in the light distribution pattern are eliminated.
（Ｆ−２ 第２の実施例）［第２図乃至第５図］
第２図乃至第５図は本発明車輌用前照灯の第２
の実施例1Aを示すものである。(F-2 Second Embodiment) [Figures 2 to 5] Figures 2 to 5 show the second embodiment of the vehicle headlamp of the present invention.
Example 1A is shown.
この第２の実施例1Aは遮光板の構成とその配
置位置が前記第１の実施例１と異なるのみで、他
の部分は前記第１の実施例１と同様であるので、
その相異する点について詳細に説明し、その余の
部分については、第１の実施例１において付した
符号と同じ符号を付して詳細な説明を省略する。 This second embodiment 1A differs from the first embodiment 1 only in the structure of the light shielding plate and its arrangement position, and other parts are the same as in the first embodiment 1.
The different points will be explained in detail, and the remaining parts will be given the same reference numerals as in the first embodiment, and detailed explanation will be omitted.
（ａ 構成）［第２図、第３図］
ところで、厳密に見るとレンズの焦点は光の波
長によつて異なる。(A Configuration) [Figures 2 and 3] By the way, strictly speaking, the focal point of the lens differs depending on the wavelength of the light.
そこて、集光レンズ８について青色の焦点FB
と赤色の焦点FRを考えて見る。即ち、第２焦点
F2において、青色の焦点FBは前方に、赤色の焦
点FRは後方に位置しており、これらの略中間に
緑色の焦点FGがある。 Therefore, regarding the condensing lens 8, the blue focus F B
Consider the red focal point F R. That is, the second focal point
At F 2 , the blue focal point F B is located at the front, the red focal point F R is located at the rear, and the green focal point FG is located approximately in the middle of these.
９は遮光板であり、前側遮光部１０と後側遮光
部１１とから成る。前側遮光部１０は極めて薄く
形成されており、その上端１０ａは青色の焦点
FBの僅かに前方、即ち、集光レンズ８側で光軸
ｘ−ｘに下方から略接している。後側遮光部１１
の上端面１１ａの幅はフイラメント４の第２焦点
F2部での結像４′の長さの約半分位の大きさに形
成されている。この上端面１１ａの幅は最低でも
結像４′の３分の１位あることが望ましい。そし
て、この遮光部１１の上端面１１ａは反射面に形
成されている。そして、この上端面１１ａはその
前端縁が赤色の焦点FRより僅かに前方で光軸ｘ
−ｘに下方から接している。 Reference numeral 9 denotes a light shielding plate, which is composed of a front light shielding part 10 and a rear light shielding part 11. The front light shielding part 10 is formed extremely thin, and its upper end 10a is a blue focal point.
It is slightly in front of F B , that is, on the condensing lens 8 side, and is approximately in contact with the optical axis x-x from below. Rear light shielding part 11
The width of the upper end surface 11a is the second focal point of the filament 4.
The length is approximately half the length of the image 4' in the F2 section. It is desirable that the width of this upper end surface 11a is at least one-third of the width of the image formation 4'. The upper end surface 11a of this light shielding portion 11 is formed as a reflective surface. The front edge of this upper end surface 11a is slightly forward of the red focal point F R and the optical axis x
-Touches x from below.
（ｂ 作用）
しかして、この第２の実施例1Aにあつては、
集光レンズ８の上半部では分光して配光パターン
の上方へ行く赤色成分が少なくなり、また、集光
レンズ８の下半部では分光して配光パターンの上
方へ向う青色成分が少なくなり、色成分のバラン
スがより良好な配光パターンを得ることができ
る。(b Effect) However, in this second embodiment 1A,
In the upper half of the condensing lens 8, there is less red component that is dispersed and goes upward in the light distribution pattern, and in the lower half of the condenser lens 8, there is less blue component that is divided and goes upward in the light distribution pattern. Therefore, a light distribution pattern with better balance of color components can be obtained.
（ｃ 遮光板の変形例）［第４図、第５図］
第４図及び第５図は遮光板の各別の変形例を示
すものである。(c Modifications of the light-shielding plate) [FIGS. 4 and 5] FIGS. 4 and 5 show different modifications of the light-shielding plate.
第４図のもの１２は上端面の前端寄りに溝１３
が形成され、上端面のうち溝１３から前の部分１
４が前側遮光部となり、後の部分１５が後側遮光
部となる。そして、後側遮光部１５の上端面１５
は反射面にされる。 The one 12 in Fig. 4 has a groove 13 near the front end of the upper end surface.
is formed, and the portion 1 in front of the groove 13 on the upper end surface
4 becomes the front light shielding part, and the rear part 15 becomes the rear light shielding part. Then, the upper end surface 15 of the rear light shielding part 15
is made into a reflective surface.
第５図のもの１６は上端面の前端縁寄りの部分
が非反射面とされ、該部分１７が前側遮光部とな
り、それより後の部分が後側遮光部１８とされ
て、該後側遮光部１８の上端面１８ａは反射面に
される。 In the case 16 in FIG. 5, a portion of the upper end surface near the front edge is a non-reflective surface, this portion 17 is a front light shielding portion, and a portion behind it is a rear light shielding portion 18. The upper end surface 18a of the portion 18 is made into a reflective surface.
（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、反射鏡の前方に配置され焦点が反
射鏡の略第２集光部に位置した集光レンズと、反
射鏡の光軸と略垂直な向きでかつ上端面が第２集
光部に近接して配置された遮光板とを備えた車輌
用前照灯であつて、上記遮光板の上端面に上記光
軸に対して平行な反射面を形成したことを特徴と
する。(G Effect of the Invention) As is clear 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, and a first light collecting part. a light source located in the condensing section; a condensing lens disposed in front of the reflecting mirror with its focal point located approximately at the second condensing section of the reflecting mirror; A vehicle headlamp comprising a light shielding plate disposed close to a second light condensing part, characterized in that a reflective surface parallel to the optical axis is formed on an upper end surface of the light shielding plate. shall be.
従つて、本発明車輌用前照灯にあつては、遮光
板の上端面で反射された光が集光レンズの上半部
へ向うため、集光レンズの上半部でも分光が生
じ、これが集光レンズの下半部で起こる分光と相
殺されるため、配光パターンに色成分の片寄りが
生じることを避けることができる。 Therefore, in the vehicle headlamp of the present invention, since the light reflected from the upper end surface of the light shielding plate is directed toward the upper half of the condenser lens, spectral separation occurs also in the upper half of the condenser lens. Since the light is canceled out by the light that occurs in the lower half of the condenser lens, it is possible to avoid uneven color components in the light distribution pattern.
第１図は本発明車輌用前照灯の第１の実施例を
模式的に示す概略縦断面図、第２図乃至第５図は
本発明車輌用前照灯の第２の実施例を示すもの
で、第２図は全体を模式的に示す概略縦断面図、
第３図は遮光板の拡大斜視図、第４図及び第５図
は遮光板の各別の変形例を示す拡大斜視図、第６
図は従来の車輌用前照灯の一例を模式的に示す概
略縦断面図である。
符号の説明、１……車輌用前照灯、２……反射
鏡、４……光源、６……遮光板、７……遮光板の
上端面、８……集光レンズ、F1……第１集光部、
F2……第２集光部、FC……集光レンズの焦点、
ｘ−ｘ……反射鏡の光軸、１Ａ……車輌用前照
灯、２……反射鏡、４……光源、８……集光レン
ズ、９……遮光板、１１ａ……遮光板の上端面、
F1……第１集光部、F2……第２集光部、FB，FG，
FR……集光レンズの焦点、１２……遮光板、１
５ａ……遮光板の上端面、１６……遮光板、１８
ａ……遮光板の上端面。
FIG. 1 is a schematic longitudinal sectional view schematically showing a first embodiment of a vehicle headlamp of the present invention, and FIGS. 2 to 5 show a second embodiment of the vehicle headlamp of the present invention. Fig. 2 is a schematic longitudinal sectional view schematically showing the whole.
FIG. 3 is an enlarged perspective view of the light shielding plate, FIGS. 4 and 5 are enlarged perspective views showing different modifications of the light shielding plate, and FIG.
The figure is a schematic vertical sectional view schematically showing an example of a conventional vehicle headlamp. Explanation of symbols, 1... Vehicle headlight, 2... Reflector, 4... Light source, 6... Light shielding plate, 7... Upper end surface of light shielding plate, 8... Condensing lens, F 1 ... a first condensing section;
F 2 ... second condensing section, F C ... focal point of condensing lens,
x-x...optical axis of reflector, 1A...vehicle headlight, 2...reflector, 4...light source, 8...condensing lens, 9...light shielding plate, 11a...light shielding plate upper end surface,
F 1 ...First condensing section, F2 ... Second condensing section, F B , F G ,
F R ... Focus of condensing lens, 12 ... Light shielding plate, 1
5a... Upper end surface of light shielding plate, 16... Light shielding plate, 18
a... Upper end surface of the light shielding plate.
Claims (1)
する反射鏡と、第１集光部に位置した光源と、反
射鏡の前方に配置され焦点が反射鏡の略第２集光
部に位置した集光レンズと、反射鏡の光軸と略垂
直な向きでかつ上端面が第２集光部に近接して配
置された遮光板とを備えた車輌用前照灯であつ
て、 上記遮光板の上端面に上記光軸に対して平行な
反射面を形成した ことを特徴とする車輌用前照灯。[Claims] 1. A reflecting mirror having two light collecting parts, a first light collecting part and a second light collecting part, a light source located in the first light collecting part, and a light source disposed in front of the reflecting mirror and having a focal point. A condensing lens located approximately at the second condensing portion of the reflecting mirror, and a light shielding plate disposed approximately perpendicularly to the optical axis of the reflecting mirror and having an upper end surface close to the second condensing portion. 1. A vehicle headlamp, characterized in that a reflective surface parallel to the optical axis is formed on an upper end surface of the light shielding plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62061771A JPS63228503A (en) | 1987-03-17 | 1987-03-17 | Lamp apparatus for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62061771A JPS63228503A (en) | 1987-03-17 | 1987-03-17 | Lamp apparatus for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63228503A JPS63228503A (en) | 1988-09-22 |
| JPH0410161B2 true JPH0410161B2 (en) | 1992-02-24 |
Family
ID=13180701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62061771A Granted JPS63228503A (en) | 1987-03-17 | 1987-03-17 | Lamp apparatus for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63228503A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2504097Y2 (en) * | 1989-11-15 | 1996-07-03 | 日産自動車株式会社 | Projector type vehicle headlight |
| CA2562438A1 (en) * | 2004-04-08 | 2005-10-27 | Federal-Mogul Corporation | Projector lamp headlight with chromatic aberration correction |
| JP4508168B2 (en) * | 2006-07-27 | 2010-07-21 | 市光工業株式会社 | Vehicle headlamp |
| JP4695112B2 (en) * | 2007-03-26 | 2011-06-08 | 株式会社小糸製作所 | Vehicle headlamp lamp unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5323180A (en) * | 1976-08-16 | 1978-03-03 | Thorn Electrical Ind Ltd | Color stripe controlled illuminating lamp |
| JPS62202401A (en) * | 1986-02-28 | 1987-09-07 | 市光工業株式会社 | Projector type head lamp |
-
1987
- 1987-03-17 JP JP62061771A patent/JPS63228503A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63228503A (en) | 1988-09-22 |
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