B-spline optimization of optical glasses especially...
Baby and toddler sunglasses
Back lighting illumination system
Back projection visual field tester
Back projection visual field tester
Back projection visual field tester
Back vision eyeglasses
Back-surface progressive power lens
Balanced progressive lens
Band filters for use in protective glasses
Bar skiascope beam fixable in parallel
Base and auxiliary eyeglass system using magnets
Beam steering optical system and method and ophthalmic apparatus
Bearing screw and its use as a hinge-pin in spectacles
Bent-wire spectacle frame
BEST CORRECTED VISUAL ACUITY CHARACTERISTICS MEASURING...
Bezel closure device particularly for eyeglasses frames
Bi-aspherical type progressive-power lens
Bi-aspherical type progressive-power lens
Bi-aspherical type progressive-power lens and method of...