Please download the dossier by clicking on the dossier button x
×

Real time IR optical sensor

  • US 6,836,329 B1
  • Filed: 07/09/2003
  • Issued: 12/28/2004
  • Est. Priority Date: 07/09/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for performing alignment and monitoring of optical sensors comprising:

  • an invisible light source emitting an invisible light beam;

    a visible light source emitting a visible light beam and positioned opposite from and approximately coaxial with said invisible light source;

    an optical polarizing beam splitter having an outer reflecting surface and an inner reflecting surface, said outer reflecting surface reflecting approximately 100% of said invisible light beam and said inner reflecting surface reflecting approximately 50% of said visible light beam in the same path as said invisible light beam, said optical polarizing beam splitter positioned between and approximately coaxial with said invisible light source and said visible light source; and

    an optical detector positioned opposite and approximately coaxial with said outer reflecting surface to collect both said reflected invisible and visible light beams.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×