JPS6399603U - - Google Patents
Info
- Publication number
- JPS6399603U JPS6399603U JP19301286U JP19301286U JPS6399603U JP S6399603 U JPS6399603 U JP S6399603U JP 19301286 U JP19301286 U JP 19301286U JP 19301286 U JP19301286 U JP 19301286U JP S6399603 U JPS6399603 U JP S6399603U
- Authority
- JP
- Japan
- Prior art keywords
- light
- convex lens
- projector
- reflecting mirror
- light source
- 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
- 238000009792 diffusion process Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
Description
第1図は本考案の1実施例を示し、第1図Aは
平面図、第1図Bは拡散プリズムの配置の説明図
である。第2図A,Bは本考案の作用、効果を説
明するための図表である。第3図は公知例のプロ
ジエクタ型前照灯の説明図である。第4図乃至第
6図は従来例のプロジエクタ型前照灯を示し、第
4図は平面図、第5図は側面図、第6図は正面図
である。第7図乃至第9図は上記従来例の作用原
理を説明するための模式的に描いた図表である。
第10図は上記従来例の光学的特性を示す実測値
の図表である。
1…凹面鏡、2…光源バルブ、3…凸レンズ、
4…シエード、4a…カツトライン、5…補助シ
エード、10l,10r,10d…拡散プリズム
。
FIG. 1 shows one embodiment of the present invention, FIG. 1A is a plan view, and FIG. 1B is an explanatory diagram of the arrangement of a diffusing prism. FIGS. 2A and 2B are diagrams for explaining the functions and effects of the present invention. FIG. 3 is an explanatory diagram of a known projector type headlamp. 4 to 6 show a conventional projector type headlamp, in which FIG. 4 is a plan view, FIG. 5 is a side view, and FIG. 6 is a front view. FIGS. 7 to 9 are diagrams schematically drawn to explain the principle of operation of the above-mentioned conventional example.
FIG. 10 is a chart of actually measured values showing the optical characteristics of the conventional example. 1... Concave mirror, 2... Light source bulb, 3... Convex lens,
4... Shade, 4a... Cut line, 5... Auxiliary shade, 10l, 10r, 10d... Diffusion prism.
Claims (1)
の光源バルブから出射した光が反射鏡で反射され
てカツトラインを有するシエード近傍で焦点を結
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、前記凸レンズ
を通過した光束の光路の周辺部に拡散プリズムを
設置したことを特徴とする、プロジエクタ型前照
灯。 A projector in which a light source bulb is installed near the focal point of a reflecting mirror, the light emitted from the light source bulb is reflected by the reflecting mirror and focused near a shade having a cut line, and the reflected light is projected forward by a convex lens. 1. A projector-type headlamp, characterized in that a diffusion prism is installed at the periphery of the optical path of the light beam that has passed through the convex lens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19301286U JPS6399603U (en) | 1986-12-17 | 1986-12-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19301286U JPS6399603U (en) | 1986-12-17 | 1986-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6399603U true JPS6399603U (en) | 1988-06-28 |
Family
ID=31148634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19301286U Pending JPS6399603U (en) | 1986-12-17 | 1986-12-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6399603U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0458401A (en) * | 1990-06-25 | 1992-02-25 | Koito Mfg Co Ltd | Projection type headlamp for automobile |
-
1986
- 1986-12-17 JP JP19301286U patent/JPS6399603U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0458401A (en) * | 1990-06-25 | 1992-02-25 | Koito Mfg Co Ltd | Projection type headlamp for automobile |