FIELD: physics, computation hardware.SUBSTANCE: invention relates to control device adapted for control over properties of the light emitted by light source. Control device can incorporate the user sensory interface adapted for visual indication of the range of admissible magnitudes including at lest one of characteristics for use to control said characteristic proceeding from the point of contact with aforesaid user sensory interface. Said control characteristic can be adjusted by means of communication device intended for transmission of control signals to light source corresponding to user data input. User interface can comprise at least one element for indication of discontinuity adapted for visual indication of stepped discontinuity in the range of admissible magnitudes describing the least one characteristic.EFFECT: simplified control over light properties.15 cl, 7 dwg
ABRUPT TRANSFER IN CIRCULAR WAVEGUIDE RING FOR USER'S INTERFACE WITH OPERATING PERFORMANCES OF DEFINITE STAR AND END