System for the storage,retrieval and display of information

Abstract

Abstract THIS INVENTION IS CONCERNED WITH AN INFORMATION STORAGE AND RETRIEVAL SYSTEM CAPABLE OF STORING INFORMATION IN THE FORM OF MICROREPRODUCTIONS OF PICTORIAL OR ALPHANUMERIC INFORMATION OR INFORMATION IN DIGITAL FORM. INFORMATION IN THE FORM OF PATTERNS OF AREAS OF DIFFERENT COLOR, GRAYNESS, OR DEGREES OF TRANSPARENCY ARE RECORDED ON A PHOTOGRAPHIC MEDIUM AS MULTIPLE HOLOGRAPHIC, EXPOSURES. EACH EXPOSURE IS MADE WITH A REFERENCE BEAM OF COHERENT LIGHT OF DIFFERENT INTENSITY PATTERNS, OR OF UNIFORM INTENSITY, BUT DIFFERENT DIRECTION WITH RESPECT TO THE RECORDING FILM. THE SAME REFERENCE BEAMS ARE USED TO RECONSTRUCT THE RECORDED IMAGES AS WERE USED TO RECORD THEM. THE RECONSTRUCTED IMAGES CAN BE UTILIZED BY DIRECT VIEWING, BY PHOTOGRAPHIC COPYING OR BY PHOTOELECTRIC SCANNING. MEANS ARE PROVIDED, INCLUDING PATTERNS OR GUIDE INDICIA, ON THE SUB- JECT RECORD AND THE MEANS TO VARY THE INTENSITY OF THE REFERENCE BEAMS, SO THAT, WITH THE HELP OF SERVO MEANS RESPONSIVE TO THESE SETS OF GUIDE INDICIA, THE SUBJECT RECORDS AND THE PATTERNS OF THE REFERENCE BEAM CAN BE PRECISELY POSITIONED WITH RESPECT TO THE HOLOGRAPHIC FILM. IN PREPARING THE HOLOGRAM, A PATTERN OF GUIDE INDICIA IS RECORDED ON THE FILM TO FACILITATE THE REPLACEMENT OF THE DEVELOPED FILM TO THE PRECISE POSITION OCCUPIED BY THE FILM DURING THE RECORDING PROCESS.

Inventors

• 👤 Daniel Silverman

Bibliographic Details