UV ABSORBING LAMP GLASS

摘要

A UV absorbing soda-lime glass containing specific amounts of cerium oxide and iron oxide permits the use of significantly less CeO2 than is used in prior art glass. The amount of cerium oxide and iron oxide present is .02-.07 wt. % and 02-.06 wt. %, respectively, with a combined total typically no more than .13 wt. %. This glass is useful for fluorescent lamp envelope in absorbing UVB radiation having a wavelength between 280-320 nm, while being transparent to visible light radiation without effecting the color of the light emitted by the lamp.