JPS6344303U - - Google Patents
Info
- Publication number
- JPS6344303U JPS6344303U JP13785186U JP13785186U JPS6344303U JP S6344303 U JPS6344303 U JP S6344303U JP 13785186 U JP13785186 U JP 13785186U JP 13785186 U JP13785186 U JP 13785186U JP S6344303 U JPS6344303 U JP S6344303U
- Authority
- JP
- Japan
- Prior art keywords
- prism
- cylindrical
- headlamp
- prism lens
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案に係る前照灯用レンズの１実施
例の水平断面図である。第２図は平面図において
スラント角θを有する前照灯の１例の説明図であ
る。第３図は従来例の前照灯用レンズの１例を示
す水平断面図、第４図は上記従来例における配光
パターンを示す図表である。
１……車体前部、２……前照灯、２ａ……凹面
鏡、２ｂ……光源バルブ、２ｃ……プリズムレン
ズ、２ｃ−１……円柱面、２ｃ−２……平面状の
段差面、３ｃ……プリズムレンズ、３ｃ−１，３
ｃ−２……円柱面、―……スクリーン上の垂
直軸、Ｈ―Ｈ……スクリーン上の水平軸。
FIG. 1 is a horizontal sectional view of one embodiment of a headlamp lens according to the present invention. FIG. 2 is an explanatory diagram of an example of a headlamp having a slant angle θ in a plan view. FIG. 3 is a horizontal sectional view showing an example of a conventional headlamp lens, and FIG. 4 is a chart showing a light distribution pattern in the conventional example. DESCRIPTION OF SYMBOLS 1... Front part of vehicle body, 2... Headlight, 2a... Concave mirror, 2b... Light source bulb, 2c... Prism lens, 2c -1 ... Cylindrical surface, 2c -2 ... Planar step surface, 3c...prism lens, 3c -1,3
c -2 ...Cylindrical surface, -...Vertical axis on the screen, H-H...Horizontal axis on the screen.
Claims (1)
口部を覆つて取り付けられる円柱面状プリズム素
子を備えたプリズムレンズであつて、該プリズム
レンズの水平断面が光軸に対して斜交した前照灯
用レンズにおいて、前記円柱面状プリズム素子は
半径を異にする２種の円柱面を連続的に接せしめ
たものであり、かつ、隣接するプリズム素子間に
平面状の段差を設けないことを特徴とする前照灯
用レンズ。 A headlamp that is a prism lens equipped with a cylindrical prism element that is attached to cover the front opening of a concave mirror with a light source bulb provided near the focal point, and in which the horizontal cross section of the prism lens is oblique to the optical axis. In the cylindrical prism element, two types of cylindrical surfaces having different radii are brought into continuous contact with each other, and there is no planar step between adjacent prism elements. Lenses for headlights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13785186U JPH0249601Y2 (en) | 1986-09-10 | 1986-09-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13785186U JPH0249601Y2 (en) | 1986-09-10 | 1986-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6344303U true JPS6344303U (en) | 1988-03-25 |
| JPH0249601Y2 JPH0249601Y2 (en) | 1990-12-27 |
Family
ID=31042290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13785186U Expired JPH0249601Y2 (en) | 1986-09-10 | 1986-09-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249601Y2 (en) |
-
1986
- 1986-09-10 JP JP13785186U patent/JPH0249601Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0249601Y2 (en) | 1990-12-27 |