WINDOWS OR LENS FOR USE

Brand	Owner (click to sort)	Address	Description
CYAVIEW	AMERICAN CYANAMID COMPANY	Wayne NJ	WINDOWS OR LENS FOR USE IN HELMETS, GOGGLES, WELDING SHIELDS, ETC.;
LASER-GARD	SPERIAN EYE & FACE PROTECTION, INC.	10 Thurber Boulevard Smithfield RI 02917	WINDOWS OR LENS FOR USE IN HELMETS, GOGGLES, SHIELDS, ETC.;LASER GUARD;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A lithographic optical system is presented herein. The optical system comprises a housing with two optically transparent windows and at least one moveable lens therein, as well as at least one other optical element outside said housing. By providing at least one optical element outside the housing, possible deleterious influences thereof on the optical quality of the moveable lens may be diminished. The housing with the moveable lens may be purged, and may be provided with a linear motor and a gas bearing for contactless moving of the lens.