| 摘要 |
PROBLEM TO BE SOLVED: To obtain a sound luminaire in which a radiation range of a voice is interlocked with an irradiation range of an illumination light for movement. SOLUTION: The sound luminaire comprises: a super-directional sound part which is composed of a modulator 8 for amplitude-modulating a carrier wave of an ultrasonic bandwidth with an audible voice to generate a modulation signal, an amplitude part 9 for amplifying the modulation signal, and a parametric speaker 1 driven by the amplified modulation signal; a spotlight 2 for irradiating an illumination light in a constant range; and a rotary tray 3 in which the parametric speaker 1 and the spotlight 2 are directed and mounted so as to overlap a sound radiation range of the parametric speaker 1 with an irradiation range of the spotlight 2, for rotating a region where the parametric speaker 1 and the spotlight 2 are mounted. COPYRIGHT: (C)2007,JPO&INPIT |
