A method for examining food products for undesired ingredients by means of laser irradiation. A laser beam scans the food products according to a predetermined pattern. Variations in the intensity of the laser beam passing through the food products indicate the presence of undesired ingredients. This...http://www.google.es/patents/US5026983?utm_source=gb-gplus-sharePatente US5026983 - Method and apparatus for examining food products by means of irradiation
Method and apparatus for examining food products by means of irradiation
