| 摘要 |
<p>In one aspect (Fig. 1) the plasma lamp according to the present invention comprises a gas envelope (20) that is constructed from ceramic material (22) and a sapphire window (34) rather than quartz. According to another aspect (Fig. 2) of the present invention, a plasma lamp comprises an RF structure (36) for the radio wave radiation and an envelope (20) for housing the excitation gas that are formed so as to constitute a single, integrated ceramic structure. According to yet another aspect (Fig. 3) of the present invention, the plasma lamp comprises a waveguide structure (52) having solid material such as ceramic rather than air for the dielectric and a gas housing (50) made of a combination of solid ceramic (58) and a sapphire window (56). In this way, the separate quartz gas envelope and air-filled waveguide structure employed in the prior art are replaced by a single, integrated structure.</p> |
