Light recycling characteristics of ultra-bright lamps Conference Paper uri icon


  • abstract The brightness of many lamps, and hence the attainable power density at the target application, can be enhanced by recycling light back into the lamp's radiant zone. We report measurements of the effectiveness, spectral characteristics and modified plasma brightness maps that result from light recycling with a specular hemispherical mirror in commercial 150 W ultra-bright Xenon short-arc discharge lamps. Lamp brightness can be increased by up to 70% for certain spectral windows and plasma arc regions. However, lamp geometry …

publication date

  • September 18, 2007