Optical beam delivery system
Optical communication module and optical element for optical...
Optical communication module and optical element for optical...
Optical concentrator
Optical device and Fresnel lens sheet
Optical element
Optical element
Optical element, metal die, and cutting tool
Optical element, optical scanning apparatus, and image...
Optical elements and methods for their manufacture
Optical image separator
Optical system
Optical system and apparatus for magnifying a display panel
Optical system and optical apparatus having the same
Optical system for enlarging images
Optical unit and method for making the same
Overhead projector with achromatic Fresnel lens
Overhead projector with catadioptric fresnel lens
Particle analyzer and composite lens formed by integrally joinin
Photolithographic method of fabricating fresnel lenses