Apparatus for recording, transmission or reproduction of sounds or images as well as parts thereof, namely electronic cabinets with modules for image generation and controlling, data storage units, processors, image projectors; projection screens; display screens; control panels for display screens; sight adaptors for display screens; optical eyepiece instruments (optical lenses and interfaces); head-mounted displays; control panels for computer graphics; head trackers; parts of the aforesaid goods; all being instruments and devices for digital image generation and image display