Patent ID: 6108110
Filing Date: 2000-08-22
Classification: G11B,G11C

Abstract:
A holographic storage and retrieval system comprising:a) an object generator positioned in an object region and having object pixels for producing a signal beam, each of said object pixels contributing a nominal luminous energy to said signal beam;b) a reference generator positioned in a reference region for producing a reference beam;c) a storage medium positioned on an optical axis;d) a detection means having image pixels corresponding to said object pixels;e) an optical relay for guiding said signal beam and said reference beam along said optical axis to said storage medium to write a hologram, and for guiding a reconstructed signal beam produced by said hologram upon illumination with said reference beam to said detection means;said optical relay having an object region imaging quality such that at least 65% of said nominal luminous energy from each of said object pixels is ensquared by the corresponding one of said image pixels.