Optical head with lasers and mirrors in a recess formed in a substrate
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United States of America Patent
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Nov 6, 2007
Grant Date -
Jun 9, 2005
app pub date -
Jan 4, 2005
filing date -
Aug 19, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated optical head records and reproduces information to and from optical discs of different types, including CD and DVD, with use of a single information recording/reproducing apparatus. The optical head has a plurality of semiconductor lasers of different wavelengths integrated by index alignment onto a substrate formed with an optoelectric integrated circuit, photodetection patterns, and a reflecting mirror.
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