A Flash Lamp with High Radiant Efficiency in Ultraviolet Ray Region

Abstract

Conventional flash lamps use Xe because its radiation spectra is close to those sunlight. Recently, new applied uses of flash lamps, such as sterilization and surface modification, are attracting attention. We developed a flash lamp effective for these uses, that emits light with higher radiant efficiency in the ultraviolet ray region We optimized the lamp specifications and lighting method, and examind a new gas(Kr) and a mixture of gases(Kr.:Xe=90:10) to be enclosed in the discharge tube.