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Raman scattered light measuring apparatus

  • US 5,754,289 A
  • Filed: 12/27/1996
  • Issued: 05/19/1998
  • Est. Priority Date: 12/30/1995
  • Status: Expired due to Term
First Claim
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1. A Raman scattered light measuring apparatus for irradiating a sample in a sample part to detect Raman scattered light from said sample and thereby measure a target component in said sample, said apparatus comprising:

  • a near infrared semiconductor laser diode having a wavelength of at least 800 nm for irradiating said sample with excitation light;

    a photo receiving part consisting of a filter which passes light having a specific vibration wave number of said target component;

    a first detector, comprising a photodetector consisting of Ge, InGaAs or PbS, for detecting said Raman scattered light being transmitted through said filter.

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