Rare earth compounds having photo-luminescent properties and...

Rare earth doped optical fibre amplifiers

Rare earth element-doped optical fiber amplifier

Rare earth ion doped optical element

Rare earth polymers, optical amplifiers and optical fibers

Rare-earth-doped optical fiber having core co-doped with...

Raster following telecentric illumination scanning system for en

Raster microscope

Raster output scanner (ROS) using an overfilled polygon design w

Raster output scanner architecture employing rotating prism face

Raster output scanner for reducing color misregistration

Raster output scanner having externally mounted mirrors

Raster output scanner with a field replaceable collimator...

Raster output scanning system having scan line non-linearity...

Raster output scanning system with a super-elliptic laser beam s

Raster scanning display system

Raster scanning-type display device using diffractive...

Rastering arrays of MEMS optical display systems

Razor magnifying glass

RbNbB.sub.2 O.sub.6 crystal and its nonlinear optical devices