Patent ID: 6835933
Filing Date: 2004-12-28
Classification: G01J,G01N

Abstract:
A spectrum measuring apparatus for measuring infrared, Raman and fluorescence spectra, comprising:a sample pedestal, wherein a sample is placed on the sample pedestal; an infrared source, the infrared source outputting infrared light to the sample to generate infrared light having a vibration spectrum when the spectrum measuring apparatus measures the infrared spectrum; a laser source, the laser source outputting single band laser to the sample when the spectrum measuring apparatus measures the Raman or fluorescence spectra; an infrared up-conversion object lens having an optical crystal and an infrared object lens, wherein a dichroic film is formed on one side of the optical crystal, the infrared object lens receiving the infrared light having the vibration spectrum and outputting collimated infrared light having the vibration spectrum to the optical crystal when the single band laser enters the optical crystal and is reflected by the dichroic film, the single band laser and the collimated infrared light having the vibration spectrum coupled into sum-frequency light in the optical crystal; an object lens, wherein the single band laser is output to the sample via the object lens when the spectrum measuring apparatus measures the Raman or fluorescence spectra, and the sample generates Raman light having the Raman spectrum or fluorescence having the fluorescence spectrum to pass through the object lens; an ocular imaging the sum-frequency light, the Raman light and the fluorescence to a predetermined position; and a visible light image capturing device disposed on the predetermined position to receive the sum-frequency light, the Raman light and the fluorescence.