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Optical transmission spectrometer

  • US 5,155,628 A
  • Filed: 07/20/1989
  • Issued: 10/13/1992
  • Est. Priority Date: 11/04/1988
  • Status: Expired due to Term
First Claim
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1. An optical transmission spectrometer for absorbing and scattering sample readings, comprising:

  • a plurality of light sources for producing light, the absorption of which in a sample is to be measured by the spectrometer;

    a holder for said plurality of light sources;

    a light beam-combiner for directing beams of light from said light sources by refraction to a common sample area;

    said light beam combiner including first and second non-parallel refractive surfaces for refracting light from said light sources toward said common sample area;

    said light beam-combiner being symmetrical about central axis;

    a first collimating device adjacent said light beam-combiner for baffling stray light passing from the said light beam-combiner and the light source;

    a mounting assembly for mounting a sample in said sample area in the optical transmission spectrometer adjacent said first collimating device; and

    a detection assembly for detecting absorption of light passing through a sample in said mounting assembly.

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