Combined heat filter and condenser lens, a projection type...
Diffraction bifocal with adjusted chromaticity
Diffraction grating lens and optical disk recording/reproducing
Diffractive lens with gratings modified to offset effects...
Diffractive multi-focal objective lens
Diffractive multifocal optical device
Diffractive optical element
Diffractive optical element
Diffractive optical element and optical low-pass filter...
Diffractive optical element and optical system including the sam
Diffractive optical element both surfaces of which comprise diff
Diffractive optical element for providing favorable...
Diffractive optical element for providing favorable...
Diffractive optical system
Diffractive wave modulating devices
Digital camera objective with diffractive optical surface
Dual mode optical Magnifier system
Fabrication methods for micro compounds optics
Fabrication methods for micro compounds optics
Forming an optical element on the surface of a light...