PROTECTIVE DEVICE EMPLOYED IN A LENS-FREE IMAGING DETECTION SYSTEM AND LENS-FREE IMAGING DETECTION SYSTEM EMPLOYING SAID DEVICE

摘要

The invention relates to a protection device for use in a system for detecting objects of interest dispersed in a sample, said system comprising: a source (1) of light radiation intended to emit light radiation (10) following a main direction (X), - an image sensor (2), - a transparent viewing zone (Z) intended to receive said sample and positioned between said source (1) of light radiation and said sensor (2), and said sensor (2) being arranged to acquire on its surface an image of the sample from radiation transmitted through the viewing area by said radiation source, - said device comprising protection means to be inserted between the source (1) of light radiation and said viewing zone (Z) for protecting said viewing area from deposition of impurities.