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Detection device

  • US 20060265147A1
  • Filed: 04/18/2006
  • Published: 11/23/2006
  • Est. Priority Date: 04/28/2005
  • Status: Active Grant
First Claim
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1. A detection device for detecting conditions at a target position by irradiating a laser light to the target position, comprising:

  • irradiation means for irradiating the laser light to the target position;

    light reception means for receiving a laser light from the target position;

    modulation means for modulating the laser light irradiated from the irradiation means;

    distinction means for distinguishing whether a modulation state of the laser light irradiated from the irradiation means matches with a modulation state of the laser light received by the light reception means;

    detection means for detecting conditions of the target position based on a light reception state in the light reception means when the distinction means distinguishes that the modulation state of the laser light irradiated from the irradiation means matches with the modulation state of the laser light received by the light reception means.

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