quartz lamp

WordReference Random House Unabridged Dictionary of American English © 2025

quartz′ lamp′, 

1. Optics a lamp consisting of an ultraviolet light source, as mercury vapor, contained in a fused-silica bulb that transmits ultraviolet light with little absorption.

• 1920–25

Collins Concise English Dictionary © HarperCollins Publishers::

quartz-iodine lamp, quartz lamp noun

1. a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc