device for use in electronic opt -? colorimetric analysis of a sample fluid, apparatus and method for colorimetric analysis of a sample fluid

摘要

An optoelectronic device (1) for use in the colorimetric analysis of a sample fluid, comprising: a housing (2) for the sample; a plurality of LED light sources (4) that emit radiation of various wavelengths, ranging between 100 nm and 2 µm; a driving unit for controlling the LED light sources (4); a light guide (7) located upstream of the housing (2) with respect to the path of the light radiation coming from the LED light sources (4); a bundle of optical fibres (6) that is interposed between the LED light sources (4) and the light guide (7) so as to receive as input the light radiation emitted by the LED light sources (4) and transmit it to the light guide (7), the light guide (7) mixing the various spectral components coming from the LED sources (4) and supplying a uniform beam as output towards the housing (2).