Name card image obtaining device
Narrow band filter and method of making same
Near-field objective lens for an optical head
Near-field scanning optical microscope having a sub-wavelength a
Negative abbe number radial gradient index relay and use of same
Negative Abbe number radial gradient index relay, method of maki
Negative refraction photonic crystal lens
Negative spherical aberration component-based imaging lens...
Negatively-refractive focusing and sensing apparatus,...
Night vision and audio signal reduction system
Night vision binoculars
Night vision monocular
Night vision monocular device
Nitride microlens
Non-circular aperture stop
Non-circular variable focus lens
Non-planar fresnel reflector arrays, mold structures and...
Non-reusable lens cell for a surgical laser handpiece
Non-symmetrical light stop
Noncircular lens positioning structure and its method