Night Vision Monocular with unistructural optical bed

  • US 5,644,425 A
  • Filed: 11/14/1995
  • Issued: 07/01/1997
  • Est. Priority Date: 11/14/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A night vision device, comprising:

  • an objective lens assembly for receiving low intensity light;

    an image intensifier tube for converting the low intensity light into a visible output image;

    a collimator lens arrangement for reimaging the output image of said image intensifier tube at a substantially infinite conjugate;

    an ocular lens assembly for viewing said output image through said collimator assembly;

    an optical bed containing a tubular structure and a receptacle disposed at one end of said tubular structure, wherein said collimator lens arrangement is disposed within said tubular structure and said image intensifier tube is retained within said receptacle so as to be joined to said optical bed and optically aligned with said collimator lens arrangement;

    a housing for receiving said optical bed, said objective lens assembly and said ocular lens assembly, wherein said housing optically aligns said ocular lens assembly with said collimator lens arrangement within said optical bed and aligns said objective lens assembly with said image intensifier tube.

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