The operating principle is based on the property of oil, asphaltenes and other bitumoids to fluoresce when exposed to ultraviolet light of the wavelength 364 nm generated by a special source of UV-beams.
— Oils and fats: checking purity of vegetable oils, detection of butter forged with margarine and fats;
— Meat: determination of meat freshness, detection of falsifications of minced meat with byproducts;
— Fish: determination of quality of fresh and salted fish;
— Milk and milk products: estimation of milk and curd quality;
— Potatoes and vegetables: detection of potatoes struck with phytophthora, frost-damaged vegetables, estimation of freshness of fruits;
— Juices and wines: detection of falsification of red grape wines with fruit-and-berry wines;
— Flour and grain: estimation of quality, and detection of the species character of flour and grain.
The luminoscope is designed for use at the laboratories of disease and sanitation inspection, sanitary and epidemiological stations, commercial and reprocessing enterprises, at the stations of geological-technical studies, mobile and stationary geological-geochemical and petrophysical laboratories.