Patent ID: 7787109
Filing Date: 2010-08-31
Classification: G01N

Abstract:
1. A total transmission spectroscopy system for use in determining the concentration of an analyte in a fluid sample, the system comprising: a sample cell receiving area for receiving a sample to be analyzed, the sample cell receiving area being constructed of a substantially optically clear material; a light source; a collimating lens being adapted to receive light from the light source and adapted to illuminate the sample cell receiving area with a substantially collimated beam of light; a first lens being adapted to receive regular and scattered light transmitted through the sample at a first angle of divergence, the first lens receiving light having a first angle of acceptance, the first lens outputting light having a second angle of divergence, the second angle of divergence being less than the first angle of divergence; a second lens being adapted to receive light from the first lens and adapted to output a substantially collimated beam of light; and a detector being adapted to measure the light output by the second lens, the detector providing information to assist in determining the analyte concentration, wherein the sample cell receiving area is located between the collimating lens and the first lens.