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Nonimaging radiant energy device

  • US 5,243,459 A
  • Filed: 05/05/1989
  • Issued: 09/07/1993
  • Est. Priority Date: 05/05/1989
  • Status: Expired due to Term
First Claim
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1. A radiant energy transformer for receiving radiant energy impinging upon said transformer within a first acute angle and emitting said radiant energy within a second acute angle, said transformer comprising:

  • a reflective element having a radiant energy inlet and a radiant energy outlet;

    a first lens means operatively coupled to transmit radiant energy to said reflective element at said radiant energy inlet, said first lens means being convex and having a first focal length; and

    a second lens means operatively coupled to receive radiant energy from said reflective element at said radiant energy outlet, said second lens means being concave and having a second focal length, said first focal length of said first lens means and said second focal length of said second lens means having a difference therebetween, said difference being substantially equal to the distance between said first lens means and said second lens means,the shape of said reflective element causing radiant energy that impinges upon said reflective element from within a first acute angle with respect to said radiant energy inlet to be reflected such that said radiant energy emerges from said radiant energy outlet exclusively within a second acute angle with respect to said radiant energy outlet.

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