Waveguide type compact optical scanner and manufacturing method thereof
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United States of America Patent
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May 5, 1998
Grant Date -
N/A
app pub date -
Jul 9, 1996
filing date -
Jul 13, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A waveguide type reduction type image sensor has a waveguide type light source having a light emitting element and a substrate including optical waveguides having a planar waveguide and a tapered waveguide. The waveguide type reduction type image sensor also has a light detecting section having a microlens array, an optical waveguide substrate and a CCD array. The microlens array converges reflected light from an original onto the incident face of the optical waveguide substrate. The optical waveguide substrate has L-shaped optical waveguides for guiding the converged light to the CCD array located on a substrate face perpendicular to the incident face. The CCD array converts the guided light to an electric signal and outputs this electric signal. A manufacturing method of this waveguide type reduction type image sensor is also shown.
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