Diffraction grating with electrically controlled periodicity
Diffractive focusing using multiple selectively light opaque...
Diffractive spatial light modulator and display
Digital scanner employing recorded phase information and method
Display having particular polarisation modifying layer
Display having particular polarisation modifying layer
Double-layer liquid crystal lens
Dual color guest-host polarizers and devices containing...
Dual liquid-crystal wavelength-selective optical switch
Dual range focus element
Dynamic gain equalizer
Electrically variable focus polymer-stabilized liquid...
Electrically variable focus polymer-stabilized liquid...
Electrically variable focus polymer-stabilized liquid...
Electrically-driven liquid crystal lens and display device...
Electro-active lens
Electro-convective diffractive device
Electro-convective diffractive device
Electro-optic zoom lens system
Electro-optical device wherein orientation layers have grating s