178588 ⎘
Holographic processes or apparatus using light, infra-red or ultra-violet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto; Processes or apparatus for producing holograms; Improving or monitoring the quality of the record, e.g. by compensating distortions, aberrations by using phase stabilized beam
Optical information recording/reproducing apparatus, optical information recording/reproducing method
#2SYSTEM AND METHOD FOR REDUCING CONVECTION CURRENT EFFECTS IN THE OPTICAL PATH OF A HOLOGRAPHIC INTERFEROMETRY SYSTEM
#3THREE-DIMENSIONAL COLOR IMAGE RECORDING APPARATUS
#4Semiconductor laser device and hologram apparatus using the semiconductor laser device