MULTIPLE REFLECTION ELECTRODELESS LAMP WITH SULFUR OR SELLENIUM FILL AND METHOD FOR PROVIDING RADIATION USING SUCH A LAMP

摘要

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.