FIELD: optics.
SUBSTANCE: protective device contains an image projection system containing array (101) of focusing elements and array (103) of image pictogram elements located relatively to each other in such a way that an artificially created image is projected by the image projection system. The specified artificially created image, together with at least one another image, acts as a targeting image. As for targeting images (310', 310"), these images are spatially coordinated in such a way that compensating image (350) is detected during given conversion of targeting images, which, otherwise, is at least partially hidden. The specified targeting effect acts as a game, which draws attention of the final user of expensive industrial production items, to which the protective device is attached.
EFFECT: protective device allows for a viewer to actively interact with the protective device, trying to turn on a compensating image.
21 cl, 10 dwg
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