公开(公告)号：CA2066152A1

公开(公告)日：1992-12-05

申请号：CA2066152

申请日：1992-04-15

Applicant: IBM

Inventor： ROSEN HAL J ,  RUBIN KURT A ,  SINCERBOX GLEN T ,  STRAND TIMOTHY C ,  ZAVISLAN JAMES M

IPC: G11B7/00 ,  G02B5/00 ,  G02B27/00 ,  G11B7/004 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24 ,  G11B7/095

Abstract: SA9-91-019 MULTIPLE DATA SURFACE OPTICAL DATA STORAGE SYSTEM AND METHOD An optical data storage system comprises a multiple data surface medium and optical head. The medium comprises a plurality of substrates separated by a light transmissive medium. Data surfaces are located on the substrate surfaces which lie adjacent a light transmissive medium. The data surfaces are substantially light transmissive. The optical head includes an aberration compensator to allow the head to focus onto the different data surfaces and a filter to screen out unwanted reflected light.