Partly reflecting optical component and laser source...
Patterned structures with optically variable effects
Phase active diffractive optical method
Phase annulus to carry out a positive phase contrast
Phase coding technique for one-way image transmission through an
Phase contrast microscope for short wavelength radiation and...
Phase correcting zone plate
Phase grating and method of producing phase grating
Phase grating, its fabricating method, optical encoder, motor us
Phase mask with spatially variable diffraction efficiency
Phase plate technology for laser marking of magnetic discs
Phase-only filter for generating an arbitrary illumination patte
Photographic optical system using diffractive optical element
Photographing apparatus having optical low-pass filter
Photorefractive limiting quadratic processor
Photorefractive two-beam coupling nonlinear joint transform corr
Picture display apparatus having multiple diffusing filter surfa
Picture taking apparatus having diffractive optical element
Planar patterns with superimposed diffraction gratings
Planar reflective optical devices