A display system, apparatus and method for generating a visible pattern
onto a display surface responsive to an audio frequency input signal by
emitting a visible beam of light along a predetermined beam axis,
interposing a reflector along the beam axis for reflecting the light beam
to form a reflected beam directed generally towards the display surface,
a pair of movable coils and a magnetizable element associated with each
coil responsive to audio frequency input signals for movement of the
reflector to generate a pattern on the display surface, supporting the
reflector proximate to the pair of coils for movement of the reflector
relative to the magnetizable elements, the predetermined beam axis having
an angle of variation of the visible beam of light which is greater than
zero degrees and less than ninety-degrees, and the visible beam of light
is preferably a laser beam.