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Terahertz camera

  • US 7,764,324 B2
  • Filed: 01/30/2007
  • Issued: 07/27/2010
  • Est. Priority Date: 01/30/2007
  • Status: Expired due to Fees
First Claim
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1. A thermal imaging device, comprising:

  • an image converter configured to receive incoming terahertz radiation on a forward face and to convert the incoming radiation to visible radiation, wherein the converter includes;

    a rigid base component made of a sapphire crystal;

    a thermochromic liquid crystal layer applied to a forward face of the rigid base;

    a thermal absorption layer applied to the forward face of the liquid crystal;

    a visible light source configured to illuminate the rearward face of the converter;

    a detector adapted to detect visible light emitting from a rearward face of the converter, whereby the detector can capture a visible image formed on a rearward face of the thermochromic liquid crystal layer.

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