JPH02123003U - - Google Patents
Info
- Publication number
- JPH02123003U JPH02123003U JP3210889U JP3210889U JPH02123003U JP H02123003 U JPH02123003 U JP H02123003U JP 3210889 U JP3210889 U JP 3210889U JP 3210889 U JP3210889 U JP 3210889U JP H02123003 U JPH02123003 U JP H02123003U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- source bulb
- headlamp
- convex lens
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Description
第１図は本考案に係るプロジエクタ型前照灯の
一実施例を示し、同図Ａは模式的な平面図、同図
Ｂは遮光板駆動機構の説明図、同図Ｃはシエード
駆動機構の説明図である。第２図は上記実施例の
作用、効果を説明するための配光パターン図表で
ある。第３図は上記と異なる実施例を示す２面図
である。第４図乃至第９図はプロジエクタ型前照
灯の原理的説明図である。第１０図は従来例のプ
ロジエクタ型前照灯における課題の説明図である
。
１……凹面鏡、２……光源バルブ、３……凸レ
ンズ、４，４′，４″……シエード、５……補助
反射板、６，６′……遮光板。
Fig. 1 shows an embodiment of a projector-type headlamp according to the present invention, Fig. 1A is a schematic plan view, Fig. 1B is an explanatory diagram of the shade plate drive mechanism, and Fig. 1C is an explanatory diagram of the shade drive mechanism. It is an explanatory diagram. FIG. 2 is a light distribution pattern chart for explaining the operation and effect of the above embodiment. FIG. 3 is a two-sided view showing an embodiment different from the above. FIG. 4 to FIG. 9 are diagrams explaining the principle of a projector type headlamp. FIG. 10 is an explanatory diagram of problems in a conventional projector type headlamp. 1... Concave mirror, 2... Light source bulb, 3... Convex lens, 4, 4', 4''... Shade, 5... Auxiliary reflector, 6, 6'... Light blocking plate.
Claims (1)
、上記の光源バルブから出射した光が凹面鏡で反
射されて第２焦点を結び、凸レンズによつて前記
反射光を前方に投射するプロジエクタ型前照灯に
おいて、 カツトラインを有するシエードを構成するとと
もに、該シエードのカツトラインを凸レンズのメ
リジオナル像面に沿わせた進出位置と、該メリジ
オナル像面から離間させた退避位置との間で前、
後進動させる駆動手段を設け、かつ、 前記の光源バルブから出射して、凹面鏡と凸レ
ンズとの間に向かう光束を、当該前照灯の前方正
面に向かわせる補助集光手段を設けるとともに、
上記補助集光手段と光源バルブとの間に進出、退
避し得る構造の遮光板を設けたことを特徴とする
、プロジエクタ型前照灯。 ２ 前記の遮光板は凹球面状の反射面を有し、光
源バルブと補助集光手段との間に進出したとき、
該凹球面状反射面の中心点が光源バルブ位置と一
致する構造であることを特徴とする、請求項１に
記載のプロジエクタ型前照灯。[Claims for Utility Model Registration] 1. A light source bulb is installed near the first focal point of a concave mirror, and the light emitted from the light source bulb is reflected by the concave mirror to form a second focal point, and the reflected light is reflected by a convex lens. A projector-type headlamp that projects forward has a shade having a cut line, and has an advanced position in which the cut line of the shade is aligned with the meridional image plane of a convex lens, and a retracted position in which it is separated from the meridional image plane. Between before,
A drive means for moving the headlamp backward is provided, and an auxiliary condensing means is provided for directing the light beam emitted from the light source bulb and directed between the concave mirror and the convex lens toward the front of the headlamp,
A projector type headlamp, characterized in that a light shielding plate having a structure that can be advanced and retracted is provided between the auxiliary light condensing means and the light source bulb. 2. The light shielding plate has a concave spherical reflecting surface, and when it extends between the light source bulb and the auxiliary light condensing means,
2. The projector type headlamp according to claim 1, wherein the center point of the concave spherical reflecting surface coincides with the position of the light source bulb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210889U JPH02123003U (en) | 1989-03-23 | 1989-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210889U JPH02123003U (en) | 1989-03-23 | 1989-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02123003U true JPH02123003U (en) | 1990-10-09 |
Family
ID=31258423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3210889U Pending JPH02123003U (en) | 1989-03-23 | 1989-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02123003U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676604A (en) * | 1992-06-03 | 1994-03-18 | Koito Mfg Co Ltd | Projection type automobile headlamp |
| JP2009245662A (en) * | 2008-03-28 | 2009-10-22 | Ichikoh Ind Ltd | Vehicular lighting fixture |
| JP2011113732A (en) * | 2009-11-25 | 2011-06-09 | Stanley Electric Co Ltd | Vehicle headlight |
-
1989
- 1989-03-23 JP JP3210889U patent/JPH02123003U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0676604A (en) * | 1992-06-03 | 1994-03-18 | Koito Mfg Co Ltd | Projection type automobile headlamp |
| JP2009245662A (en) * | 2008-03-28 | 2009-10-22 | Ichikoh Ind Ltd | Vehicular lighting fixture |
| JP2011113732A (en) * | 2009-11-25 | 2011-06-09 | Stanley Electric Co Ltd | Vehicle headlight |
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