Reduced profile magnetic head assembly and method of manufacturi

Details Reduced profile magnetic head assembly and method of manufacturi Reduced profile magnetic head assembly and method of manufacturi

1998-04-29

1999-12-07

Neyzari, Ali

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Magnetic field and light beam

369103, G11B 1100

Patent

active

059994983

ABSTRACT:
A magnetic head assembly comprises a magnetic head, a magnetic head support structure having a first mount, a second mount and a housing space, and an optical unit fixed to the second mount, capable of projecting a plurality of light beams through a light passage on a recording medium and of receiving a plurality of reflected light beam. The optical unit comprises a light emitting device which emits a light beam, a holographic unit capable of producing a plurality of light beams from the light beam and of focusing the plurality of light beams on a position sensing track formed on the recording medium, and a photodetection device for receiving the plurality of reflected light beams. The holographic unit is partly received in the housing space.

REFERENCES:
patent: 5124961 (1992-06-01), Yamaguchi et al.
patent: 5197050 (1993-03-01), Murakami et al.
patent: 5295122 (1994-03-01), Murakami et al.

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