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Light collector and its use for spectroscopic purposes

  • US 4,657,397 A
  • Filed: 02/09/1984
  • Issued: 04/14/1987
  • Est. Priority Date: 06/25/1982
  • Status: Expired due to Term
First Claim
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1. An optical device for emitting a substantially parallel light beam bundle, comprising:

  • a concave reflector having a plane of symmetry;

    a light source mounted at a focal point of said reflector and defining a source area;

    a retroreflector at least partially covering a concave portion of said reflector and arranged such that at least some light beams emitted from said light source are reflected back into said source area;

    an opening in said retroreflector at an intersection of said plane of symmetry and said retroreflector;

    mounting means for supporting said light source in said reflector, said mounting means intersecting said reflector at a location spaced from a point on said reflector in said plane of symmetry and opposite said opening; and

    a body influencing characteristics of irradiated light arranged between the light source and the retroreflector.

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