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发明授权
CN1873903B 短弧型高压放电灯和灯装置 有权 转让

短弧型高压放电灯和灯装置
摘要：
本发明提供了一种耐用性得以提高的短弧型高压放电灯以及包括该短弧型高压放电灯的灯装置。玻璃材料进入其中的玻璃材料部分(52A)分别设置在电极轴(5402)的外周表面(5406)和被密封金属箔(56)的弯曲部分(58)之间、电极轴(5402)的两侧上，在玻璃材料部分(52A)、电极轴(5402)的外周表面(5406)和弯曲部分(58)中存在与密封空间(60)连续的间隙(S3)。由玻璃材料部分(52A)面对间隙(S3)的表面(52-1)与弯曲部分(58)形成的角度为钝角(ψ)。换句话说，由玻璃材料部分(52A)面对间隙(S3)的表面(52-1)与被密封金属箔(56)的弯曲部分(58)的表面(5602)形成的角度为钝角(ψ)。
摘要（英）：

A short-arc type high pressure discharge lamp in which durability is improved and a lamp apparatus including the same is provided. Glass material portions 52A into which glass material enters respectively are provided on both sides of an electrode axis 5402 between the outer circumferential surface 5406 thereof and a curved portion 58 of a sealed metal foil 56, and a gap S3 being continuous with a sealed space 60 remains among the glass material portion 52A, the outer circumferential portion 5406 of the electrode axis 5402, and the curved portion 58. An angle formed by a surface 52-1 of the glass material portion 52A facing the gap S3 and the curved portion 58 is an obtuse angle. In other words, an angle formed by the surface 52-1 of the glass material portion 52A facing the gap S3 and a surface 5602 of the curved portion 58 of the sealed metal foil 56 is the obtuse angle.

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