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OPTICAL-TYPE POSITION DETECTING DEVICE, HAND APPARATUS, AND TOUCH PANEL

  • US 20110128553A1
  • Filed: 11/30/2010
  • Published: 06/02/2011
  • Est. Priority Date: 12/01/2009
  • Status: Abandoned Application
First Claim
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1. An optical position detecting device comprising:

  • a translucent unit;

    a light source unit that emits detection light toward the translucent unit and forms with the detection light transmitted through the translucent unit a first light intensity distribution in which the intensity decreases as it becomes farther from the translucent unit;

    a light detecting unit that receives the detection light reflected by a target object located within the first light intensity distribution; and

    a position detecting unit that detects a position of the target object based on an intensity of light received by the light detecting unit.

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