Uniformity correction system having light leak and shadow...
Unit magnification optical system with improved reflective retic
Unit magnification projection lens system
Unit magnification projection objective
Universal prescription bottle instruction label magnifier
Universal security camera
Use of bromine anions in an optical electrowetting device
UV-capable dry lens for microscopes
UV-curable Fresnel lens resin composition, Fresnel lens, and bac
UV-curable fresnel lens resin composition, fresnel lens, and bac
UV-resistant jointing technique for lenses and mounts