Durable optical elements fabricated from free standing polycryst
Durable retroreflective elements
Durable retroreflective elements
Durable silver coating for mirrors
Durable silver thin film coating for diffraction gratings
Dustproof lens assembly
Dustproof panel
Dustproof structure of optical box
DUV-capable microscope objective with parfocal IR focus
DVD recording and reproducing system
Dye combinations for multiple bandpass filters for video...
Dye combinations for multiple bandpass filters for video...
Dye laser amplifier
Dye laser amplifier including a dye cell contained within a supp
Dye laser amplifier including a low turbulence, stagnation-free
Dye laser amplifier including an improved window configuration f
Dye laser amplifiers
Dye laser system
Dye-based filter
Dynamic aberration correction of conformal/aspheric domes and wi