Super bright Argon spectrum discharge tube 100mm – NEW
Neon and Argon Glow Lamps - How they work & History
QUANTEL MEDICAL Vitra 532 Green Argon Laser with Zeiss Style Slit Lamp Attachment - Laser Locators
GEC 60W SLI/H linear sodium lamp in various stages of warm up. The purple colour is from the neon-argon-xenon fill gas, the yellow is from sodium Stock Photo - Alamy