FIELD: safety products.
SUBSTANCE: method of protection of movie - and - video products from screen copying consists in creating jamming countermeasures to illegal copying securing uneven lighting of the projection screen, invisible to the human eye, but perceived by video devices heat radiation during film show. Whereat special covering of the projection screen is used unevenly reflecting light energy of the film-projector in infrared frequencies range.
EFFECT: jamming countermeasures to illegal video shooting during film shows conducted by means of digital and traditional film projectors, securing minimal cost of the jamming method and elimination of any disturbances to the audience.
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