发明名称 |
Lamp, in particular for vehicles or traffic signal applications |
摘要 |
<p>There is provided a lamp (1) composed of a light source (2), a tilted ellipsoidal rotation surface reflector (3), and an annular cylindrical lens (4). The tilted ellipsoidal rotation surface reflector (3) is formed of an ellipsoidal rotation surface emerging when an ellipsoid, having a first focal point (F1) located on the center axis (X) of the light source (2) and adjacent the light source and a second focal point (F2) located on an oblique line (Y) passing through the first focal point (F1) and tilted appropriately from the light-source center axis (X) and assumed on a plane containing the light-source center axis (X) and the oblique line (Y), is rotated around the light-source center axis (X). The annular cylindrical lens (4) is obtained by rotating, around the light-source center axis (X), the cross-sectional configuration of an aspheric lens having a focal point adjacent the second focal point (F2) of the ellipsoid and having an optical axis (Z) nearly parallel to the light-source center axis (X). <IMAGE></p> |
申请公布号 |
EP0950847(A2) |
申请公布日期 |
1999.10.20 |
申请号 |
EP19990107534 |
申请日期 |
1999.04.15 |
申请人 |
STANLEY ELECTRIC CO., LTD. |
发明人 |
FUTAMI, TAKASHI;KOIKE, TERUO;KAWAGUCHI, YOSHIFUMI |
分类号 |
F21S2/00;F21S8/00;F21S8/10;F21S8/12;F21V5/04;F21V7/00;F21V7/08;F21V13/04;F21V17/00;(IPC1-7):F21S8/10 |
主分类号 |
F21S2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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