Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2011-08-30
2011-08-30
Petkovsek, Daniel (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
C385S050000, C385S132000, C345S176000
Reexamination Certificate
active
08009944
ABSTRACT:
An optical waveguide30having a bending groove34parallel to two long sides of a rectangular shape thereof. The optical waveguide30is bent along the bending groove34so as to come into close contact with a frame of an optical touch panel. This makes it possible to attach the optical waveguide30to the frame without misalignment during assembly. Therefore, the optical waveguide30can emit light beams in a direction perpendicular to one side of a rectangular display screen opposed to one long side of the rectangular shape thereof. Further, the width of the frame of the optical touch panel30can be made smaller than that of the optical waveguide30. This makes it possible to achieve reduction in the width of the frame of the optical touch panel.
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Nitto Denko Corporation
Petkovsek Daniel
Westerman Hattori Daniels & Adrian LLP
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