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OPTICAL PEN AND OPTICAL TOUCH SYSTEM WITH SAME

  • US 20110073385A1
  • Filed: 03/05/2010
  • Published: 03/31/2011
  • Est. Priority Date: 09/30/2009
  • Status: Active Grant
First Claim
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1. An optical pen, comprising:

  • a housing;

    a light source module received in the housing and configured for emitting light;

    an optical lens configured for converging the light emitted from the light source module, the optical lens comprising an optical portion and a supporting portion around the optical portion;

    a pen tip positioned at an end of the housing and configured for guiding and projecting the light out of the housing; and

    a shielding member around the optical portion attached to the optical lens and covering the supporting portion, the shielding member being configured for blocking the light passing through the supporting portion from entering into the pen tip.

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