JPS6383702U - - Google Patents
Info
- Publication number
- JPS6383702U JPS6383702U JP1986177466U JP17746686U JPS6383702U JP S6383702 U JPS6383702 U JP S6383702U JP 1986177466 U JP1986177466 U JP 1986177466U JP 17746686 U JP17746686 U JP 17746686U JP S6383702 U JPS6383702 U JP S6383702U
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical
- cylindrical surface
- center line
- headlamp
- prism
- 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 3
- 230000003287 optical effect Effects 0.000 description 2
Description
第１図乃至第３図は本考案の一実施例を示し、
第１図はプリズムレンズの断面図、第２図は光路
図、第３図は配光パターンを示す図表である。第
４図乃至第６図は上記と異なる実施例を示し、第
４図はプリズムレンズの断面図、第５図は光路図
、第６図は配光パターンを示す図表である。第７
図は、前面レンズを傾斜させた形式の前照灯の一
例を示す断面図、第８図は前面レンズを傾斜させ
た従来形前照灯の照射パターンの説明図である。
第９図は中央部付近のシリンドリカルプリズムを
スラントさせた前面レンズの一例を示す平面図、
第１０図は第９図に示したＥ部の拡大詳細図であ
る。第１１図は従来形シリンドリカルプリズムレ
ンズの断面を示し、第１２図はシリンドリカルプ
リズムをスラントさせた場合の配光パターンを説
明するための図表である。
１……ランプハウジング、２……前面レンズ、
２ａ……シリンドリカルプリズム、３……光源バ
ルブ。
1 to 3 show an embodiment of the present invention,
FIG. 1 is a sectional view of a prism lens, FIG. 2 is an optical path diagram, and FIG. 3 is a chart showing a light distribution pattern. 4 to 6 show embodiments different from those described above, in which FIG. 4 is a sectional view of a prism lens, FIG. 5 is an optical path diagram, and FIG. 6 is a chart showing a light distribution pattern. 7th
This figure is a sectional view showing an example of a headlamp with an inclined front lens, and FIG. 8 is an explanatory diagram of the irradiation pattern of a conventional headlamp with an inclined front lens.
Figure 9 is a plan view showing an example of a front lens with a slanted cylindrical prism near the center;
FIG. 10 is an enlarged detailed view of section E shown in FIG. 9. FIG. 11 shows a cross section of a conventional cylindrical prism lens, and FIG. 12 is a chart for explaining a light distribution pattern when the cylindrical prism is slanted. 1...Lamp housing, 2...Front lens,
2a...Cylindrical prism, 3...Light source bulb.
Claims (1)
ムを設けた前照灯において、上記シリンドリカル
プリズム素子の中心線の左側円柱面と、該中心線
の右側円柱面との内の何れか一方を凸円柱面とす
ると共に、他方を凹円柱面とし、かつ、上記凸、
凹それぞれの円柱面の中心を前記シリンドリカル
プリズム素子の中心線付近に位置せしめたことを
特徴とする前照灯。 In a headlamp in which a front lens is provided with a vertical cylindrical prism, one of the cylindrical surface to the left of the center line of the cylindrical prism element and the cylindrical surface to the right of the center line is a convex cylindrical surface, and , the other is a concave cylindrical surface, and the convex surface,
A headlamp characterized in that the center of each concave cylindrical surface is located near the center line of the cylindrical prism element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986177466U JPS6383702U (en) | 1986-11-20 | 1986-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986177466U JPS6383702U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383702U true JPS6383702U (en) | 1988-06-01 |
Family
ID=31118691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986177466U Pending JPS6383702U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383702U (en) |
-
1986
- 1986-11-20 JP JP1986177466U patent/JPS6383702U/ja active Pending
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