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Circularizing/Low Profile Prism Disclosure Number: IPCOM000036270D
Original Publication Date: 1989-Sep-01
Included in the Prior Art Database: 2005-Jan-28

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Cohen, DK Lueke, FS Wenner, JW [+details]


In a digital optical disk file, the minimum spacing between disks, or the minimum height of a single-disk drive, is limited by, among other things, the diameter of a circularized round beam to the objective lens. A typical optical path is depicted in Fig. 1.