Light-beam shaper

  • US 8,220,958 B2
  • Filed: 04/04/2008
  • Issued: 07/17/2012
  • Est. Priority Date: 04/05/2007
  • Status: Active Grant
First Claim
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1. An optical device for imparting an elongated shape to a light beam, said optical device comprising:

  • a lens having a centerline;

    an entry diopter defined by a quadratic surface andan exit dioptersaid exit diopter having a first convergent section, a second convergent section and a divergent section bridging said first and second convergent sections, said first and said second convergent sections defined by exit diopter quadratic surfaces;

    wherein said exit diopter has a rotationally symmetrical continuous surface constructed around a rotation axis perpendicular to said centerline.

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