Speed reducer and electric retractable rearview mirror...
Speed reduction device for an electrically powered foldable rear
Speed variation mechanism
Spherical aberration correction using flying lens and method
Spherical aberration corrector for electron microscope
Spherical and nearly spherical view imaging assembly
Spherical binocular
Spherical multicomponent optical isolator
Spherical rear view mirror target marking system and method
Spherical reflective screen with focus and method for...
Spherical retro-reflector mount negative
Spherical viewing/projection apparatus
Spherically-enclosed folded imaging system
Sphero cylindrical eye refraction system using fluid focus...
Spigot type break-away mirror
Spill light removing device
Spiral lens disk and projection system employing the same
Splined radial panel solar concentrator
Split beam micromirror
Split beam optical character reader