| 发明名称 | Light source device | ||
| 摘要 | A filament of simple structure showing improved conversion efficiency is provided. There is provided a light source device comprising a light-transmitting gas-tight container, a filament disposed in the light-transmitting gas-tight container, and a lead wire for supplying an electric current to the filament, wherein the filament consists of a single crystal. Sum of concentration of lattice defects and impurity concentration of the filament consisting of a single crystal is preferably lower than 0.01%. | ||
| 申请公布号 | US8841842(B2) | 申请公布日期 | 2014.09.23 |
| 申请号 | US201314033303 | 申请日期 | 2013.09.20 |
| 申请人 | Stanley Electric Co., Ltd. | 发明人 | Matsumoto Takahiro |
| 分类号 | H01K1/04;H01K1/08 | 主分类号 | H01K1/04 |
| 代理机构 | Holtz Holtz Goodman & Chick PC | 代理人 | Holtz Holtz Goodman & Chick PC |
| 主权项 | 1. A light source device comprising a light-transmitting gas-tight container, a filament disposed in the light-transmitting gas-tight container, and a lead wire for supplying an electric current to the filament, wherein: the filament consists of a single crystal; and a sum of concentration of lattice defects and impurity concentration of the filament consisting of a single crystal is lower than 0.01%. | ||
| 地址 | Tokyo JP | ||