Beam-adjusting optics

  • US 7,787,197 B2
  • Filed: 09/04/2008
  • Issued: 08/31/2010
  • Est. Priority Date: 09/14/2007
  • Status: Active Grant
First Claim
Patent Images

1. An optical analyzer comprising:

  • (a) a light source adapted to emit an approximately collimated light beam along a light path;

    (b) a focusing lens positioned in the light path, adapted to focus the light beam onto a focal spot within a sample analysis region, wherein said focusing lens has a focal length f1,(c) beam-adjusting optics positioned in the light path between the light source and the focusing lens, wherein said beam-adjusting optics comprises at least one beam-adjusting lens that is mounted in a positioning device that allows movement of the beam-adjusting lens in a plane perpendicular to the light path, wherein said beam-adjusting lens has a focal length f2, wherein said beam-adjusting lens and said focusing lens are separated by a distance z along the light path, and wherein |f2

    z|≧



    f1.

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