发明名称 |
Fahrzeugscheinwerfer-Entladungslampe |
摘要 |
A discharge bulb is provided with an arc tube main body in which an arc tube having a discharge light emitting portion (a hermetically sealed glass envelope) where electrodes are provided in such a manner as to face each other is enclosed in a cylindrical shroud glass tube. The discharge bulb is configured so that a light distribution pattern having a predetermined cut-off line is formed by light intercepting portions (light intercepting films) and a light distribution control reflector. A frost treatment is applied to only a light emitting area on an outer surface of the shroud glass tube which corresponds to an area along the cut-off line in the light distribution pattern. |
申请公布号 |
DE102005032101(B4) |
申请公布日期 |
2010.10.07 |
申请号 |
DE20051032101 |
申请日期 |
2005.07.08 |
申请人 |
KOITO MANUFACTURING CO. LTD. |
发明人 |
TAKAGAKI, MICHIO;FUKUYO, TAKESHI;HOMMA, AKIRA;IRISAWA, SHINICHI |
分类号 |
F21S8/10;F21Y101/00;H01J61/30;H01J61/34 |
主分类号 |
F21S8/10 |
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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