Part made of transparent material and headlight lens for...

Phase volume hologram and method for producing the phase...

Photoinduced grating in B.sub.2 O.sub.3 containing glass

Photoinduced grating in B.sub.2 O.sub.3 containing glass

Photorefractive device having an electro-optical material betwee

Photorefractive device with quantum wells

Photorefractive glass article

Photorefractive holographic interference novelty filter

Photorefractive square law converter

Photorefractive systems and methods

Photorefractive systems and methods

Polarization-independent energy exchange and phase conjugation

Polarizing filter and its manufacturing method

Polymer dispersed liquid crystal film devices

Position feedback system for volume holographic storage media

Preparation of permanent photowritten optical diffraction gratin

Preparation of photosensitive material to withstand a lamination