Achromatic and absorption reducing light collecting system, particularly adapted to optical spectrometric analysis

摘要

This system collects light emitted by at least one light source ( 52 ) and focuses it onto at least one light detection device ( 54 ). Preferably, it comprises a first mirror ( 58 ) that collects light emitted by the source and focuses it on a second mirror ( 60 ) that focuses it in turn onto the device. The system is provided with a chamber that is opaque to all light, particularly ultraviolet radiation, and in which the light source, the light detection device and the mirrors are placed, and means of creating a vacuum in this chamber and filling it with a gas that is transparent to ultraviolet radiation.