发明授权
- 专利标题： Discharge lamp for automobile headlight and the automobile headlight
- 专利标题（中）： 汽车前照灯和汽车头灯的放电灯
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申请号： US09363764申请日： 1999-07-29
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公开(公告)号： US06376988B1公开(公告)日： 2002-04-23
- 发明人: Kenji Mukai , Hideaki Kiryu , Tetsuji Takeuchi , Takeshi Saitoh
- 申请人： Kenji Mukai , Hideaki Kiryu , Tetsuji Takeuchi , Takeshi Saitoh
- 优先权： JP10-244032 19980828
- 主分类号： H01J6116
- IPC分类号： H01J6116
摘要：
A discharge lamp for an automobile headlight has a light color that lies in a region common to the following three regions: a region bounded by an ellipse with a color point (u, v)=(0.224, 0.331) as a center thereof, a major axis of 0.080, a minor axis of 0.024, and an angle from a u axis of 35 degrees in the CIE 1960 UCS diagram; a region bounded by an ellipse with a color point (u, v)=(0.220, 0.332) as a center thereof, a major axis of 0.060, a minor axis of 0.022, and an angle from a u axis of 15 degrees in the CIE 1960 UCS diagram; and a region bounded by an ellipse with a color point (u, v)=(0.235, 0.335) as a center thereof, a major axis of 0.060, a minor axis of 0.030, and an angle from a u axis of 30 degrees in the CIE 1960 UCS diagram. The light color lies in a range on a side of color temperature lower than an isotemperature line of a correlated color temperature of 3800K and higher than an isotemperature line of a correlated color temperature of 3400K in the CIE 1960 UCS diagram.