Holographic optical information recording and reproducing apparatus which parallel-translates light ray flux to correct tilt
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United States of America Patent
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Jun 24, 2008
Grant Date -
Feb 10, 2005
app pub date -
Jul 7, 2004
filing date -
Jul 8, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an optical information recording/reproducing apparatus using holography in which a relative inclination between a recording light or a reproducing light and a recording medium is corrected by using a device which is suitable for size-reduction. Provided is an optical information recording/reproducing apparatus for recording/reproducing information to/from a recording medium through irradiating recording light or reproducing light by an objective lens onto a recording medium to/from which information is recorded/reproduced using holography, wherein light ray flux of the recording light or the reproducing light entering an objective lens is parallel-translated according to a relative inclination between the recording light or the reproducing light and the recording medium.
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