JPH01143006U - - Google Patents
Info
- Publication number
- JPH01143006U JPH01143006U JP3958588U JP3958588U JPH01143006U JP H01143006 U JPH01143006 U JP H01143006U JP 3958588 U JP3958588 U JP 3958588U JP 3958588 U JP3958588 U JP 3958588U JP H01143006 U JPH01143006 U JP H01143006U
- Authority
- JP
- Japan
- Prior art keywords
- center
- concave
- concave mirror
- intersection
- vertical plane
- 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
- 238000013459 approach Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図乃至第３図は本考案に係る車輛用灯具の
１実施例を示し、第１図は水平断面を模式的に描
いた光路図、第２図は反射鏡の説明図、第３図は
配光パターンを示す図表である。第４図は従来例
の断面図、第５図は公知発明の１実施例における
断面図である。
１……反射鏡（凹面鏡）、２……光源バルブ、
２ａ……フイラメント、３，３′……プリズムレ
ンズで構成された前面レンズ、４……反射鏡（凹
面鏡）、５……前面レンズ、６……反射鏡（凹面
鏡）。
1 to 3 show one embodiment of the vehicle lamp according to the present invention, FIG. 1 is a light path diagram schematically depicting a horizontal cross section, FIG. 2 is an explanatory diagram of a reflecting mirror, and FIG. 3 is a chart showing a light distribution pattern. FIG. 4 is a sectional view of a conventional example, and FIG. 5 is a sectional view of an embodiment of the known invention. 1...Reflector (concave mirror), 2...Light source bulb,
2a...Filament, 3, 3'...Front lens composed of prism lenses, 4...Reflecting mirror (concave mirror), 5...Front lens, 6...Reflecting mirror (concave mirror).
Claims (1)
ともに、上記凹面反射鏡の前面開口部を覆う形に
前面レンズを設けた車輛用灯具において、 (a) 前記の凹面鏡を、左右の部分と、中央付近
の部分とに区分し、 (b) 前記左右の部分の凹面鏡は、これを回転放
物面状に構成し、 (c) 前記中央付近の凹面鏡の光軸を通る垂直面
を想定して、該中央付近の凹面鏡と上記垂直面と
の交線を想定し、 (d) 上記中央付近の凹面鏡の形状は、その水平
断面について、前記の交線に近づくにつれて反射
角θが大きくなるものであり、 (e) 前記の前面レンズは、これを拡散形のプリ
ズムレンズとしたことを特徴とする車輛用灯具。[Scope of Claim for Utility Model Registration] In a vehicle lamp in which a light source bulb is provided near the focal point of a concave reflector, and a front lens is provided to cover the front opening of the concave reflector, (a) the concave mirror is , divided into left and right parts and a part near the center, (b) the concave mirrors of the left and right parts are configured in the shape of a paraboloid of revolution, and (c) the optical axis of the concave mirror near the center passes through. Assuming a vertical plane, suppose the line of intersection between the concave mirror near the center and the vertical plane, (d) The shape of the concave mirror near the center is such that the reflection angle increases as it approaches the above line of intersection with respect to its horizontal cross section. (e) The front lens is a diffusing prism lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3958588U JPH01143006U (en) | 1988-03-28 | 1988-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3958588U JPH01143006U (en) | 1988-03-28 | 1988-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01143006U true JPH01143006U (en) | 1989-09-29 |
Family
ID=31266084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3958588U Pending JPH01143006U (en) | 1988-03-28 | 1988-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01143006U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151701A (en) * | 1983-02-18 | 1984-08-30 | 市光工業株式会社 | Headlamp for vehicle |
-
1988
- 1988-03-28 JP JP3958588U patent/JPH01143006U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151701A (en) * | 1983-02-18 | 1984-08-30 | 市光工業株式会社 | Headlamp for vehicle |
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