Rimless eyeglasses
Rimless eyewear
Rimless spectacles and method for making same
Rimless spectacles with sides of essentially filamentary...
Ring interferometer configuration for writing gratings
Ring photonic crystal fibers
Ringfield lithography
Ringfield lithography
Riser-rated optical cable suitable for use outdoors
Road surface marking tape material
Roadway sign
Robust autofocus system for a microscope
Robust fiber optic cables
Rocker arm prism display
Rodent-resistant non-conductive optical fiber cable
Rotary device
Rotary joint for polarization plane maintaining optical fibers
Rotary mirror for optical systems
Rotary optical coupler
Rotary optical switch