Short overall length imaging lens system with four lenses
Short pulse laser protection fly's eye lens
Short wavelength projection optical system
Shutter device for infra-red imaging systems
Side emitting lens, and backlight unit and liquid crystal...
Side emitting near field lens
Sight tube pivot assembly
Sight tube pivot assembly
Sighting device
Sighting instrument
Sighting telescope for simultaneous viewing of target and sight
Signal viewing device
Simple power-variable finder
Simple wide-angle zoom lens
Simplified zoom lens
Simultaneously achieving circular symmetry and diminishing...
Single aspherical plano-convex collimator lens
Single component aspheric apodizer
Single element laser beam shaper
Single F-theta lens used for micro-electro mechanical system...