Micro image storage and retrieval unit

Claim 1

A MICRO-IMAGE STORAGE AND RETRIEVAL UNIT COMPRISING A CIRCULAR RECORD MEDIUM HAVING A RECORDING SURFACE AREA CHARACTERIZED BY THE ABILITY TO RECEIVE AND RETAIN A PLURALITY OF IMAGES IN SUCH A FORM THAT THE RETAINED IAMGES MAY BE RETRIEVED THEREFROM BY PROJECTION TECHNIQUES WHEREIN THE IAMGES ARE TETAINED IN A PLURALITY OF CONCENTRIC RECORDING TRRACKS, EACH HAVING THE SAME NUMBER OF IMAGES, EXTENDING CIRUCMFERENTIALLY AROUND SAID RECORDING SURFACE AREA WITH THE CORRESPONDING IMAGES OF EACH TRACK BEING LOCATED WITHIN THE SAME SECTOR OF THE RECORDING SURFACE, AN OPTICAL SYSTEM, MEANS FOR LOCATING SAID RECORD MEDIUM IN THE LIGHT PATH OF SAID OPTICAL SYSTEM, MEANS FOR ROTATING SAID RECORD MEDIUM WHEREBY ANY SECTOR THEREOF MAY BE BROUGHT INTO REGISTER WITH SAID OPTICAL SYSTEM, MEANS FOR DISPLACING SAID RECORD MEDIUM SUBSTANTIALLY RADIALLY WHEREBY ANY RECORDING TRACK THEREOF MAY BE BROUGHT INTO REGISTER WITH SAID OPTICAL SYSTEM, ELECTRICAL CIRCUIT MEANS FOR SELECTING WITH SAID SECTOR AND TRACK TO BE BROUGHT INTO REGISTER WITH SAID OPTICAL SYSTEM, SECTOR INDEXING MEANS RESPONSIVE TO SAID ELECTRICAL CIRCUIT MEANS FOR BRINGING A SELECTED SECTOR OF SAID RECORD MEDIUM INTO REGISTER WITH SAID OPTICAL SYSTEM AND STOPPING THE ROTATIONAL MOVEMENT OF SAID RECORD MEDIUM, AND TRACK INDEXING MEANS RESPONSIVE TO SAID ELECTRICAL CIRCUIT MEANS FOR BRINGING A SELECTOR RECORDING TRACK OF SAID RECORD MEDIUM INTO REGISTER WITH SAID OPTICAL SYSTEM.