Browse Prior Art Database

Read/Write Head for Magneto-Optic Disk

IP.com Disclosure Number: IPCOM000038631D
Original Publication Date: 1987-Feb-01
Included in the Prior Art Database: 2005-Jan-31

Publishing Venue

IBM

Related People

Authors:
Baasch, HJ Baxter, DW Luecke, FS [+details]

Abstract

Described herein is a magneto-optic disk read/write head featuring an electromagnetic coil for writing which is located at the tip of the optical mount adjacent the focus point for the optics of the head. This configuration allows a rapid or high frequency switching of the field produced by the coil. This in turn permits single-pass writing operations on a magneto-optic disk. In Fig. 1, the read/write head is illustrated with a coil 10 mounted on the face 12 of supporting cone 14 mounted on the optical carrier element 16 of the head. Electrical contact to the coil is through electrodes 18 and 20. The structure of the head is shown in more detail in Fig. 2, which is a cut-away illustrating the objective lens assembly containing lenses 22 and 24 in carrier 16.