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Radar apparatus and optical receiver thereof

  • US 7,558,007 B2
  • Filed: 06/12/2007
  • Issued: 07/07/2009
  • Est. Priority Date: 06/27/2006
  • Status: Active Grant
First Claim
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1. A light receiver comprising:

  • a refractive body that receives an incident light coming in at an incident angle and refracts the incident light with a refractile angle, wherein the refractile angle is smaller than the incident angle;

    a first light receiving element that is disposed in a position on an incidence surface of the refractive body, wherein a light receiving face of the first light receiving element faces on the incidence surface of the refractive body; and

    a mirror that is disposed on an opposite plane being on an opposite side of the refractive body relative to the incidence surface, wherein the mirror reflects at least a portion of the incident light coming into the refractive body through the incidence surface toward the first light receiving element, whereinthe opposite plane of the refractive body is a curved surface that protrudes toward an opposite direction relative to the incidence surface, andthe mirror is formed in a concave shape that extends along the curved surface.

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