Personal dosimeter for the measurement of artificial optical radiation (AOR) exposure

The Italian Legislative Decree dated April 26, 2010 no. 81/08 also refers to the European directive no. 2006/25/EC on the limit values for the exposure of workers to artificial optical radiation (AOR). The main damages caused by higher exposure to AOR regard in particular eyes and all of the body (e.g. skin). Recent studies concern the health effects on retinal photoreceptors after exposure to wavelength range between 380 nm and 500 nm, named "blue light”. The aim of this paper is to present an innovative personal dosimeter for AOR detection. The proposed system can be used not only for evaluating AOR, but also providing the operator's position and attitude in relation to the natural or artificial source of radiation. The acquired Data are then processed by a Fuzzy Inference System (FIS). The FIS main target is the accurate evaluation of risk levels associated to each light radiation striking the operator's retina.