-
公开(公告)号：DE3880353D1
公开(公告)日：1993-05-27
申请号：DE3880353
申请日：1988-02-02
Applicant: IBM
Inventor： LATTA MILTON RUSSELL , STRAND TIMOTHY CARL
Abstract: A holographic mirror is used in an optical storage head to diffract a laser beam perpendicularly to the optical medium and also to focus the beam onto the optical medium. The mirror can also function to cause circularisation of a collimated laser beam of elliptical cross-section.
Search Results
31
records
(took 0.014 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
