| 摘要 |
OPTICAL INSTRUMENT FOR PRODUCING MUSICAL TONES OR IMAGES BY MOVEMENT OF A PLAYER'S BODY Various apparatus are known for producing musical tones by a player moving his body through a field of electromagnetic radiation, whether light, radar or the like. The present invention provides an optical instrument which provides a toneproducing apparatus which permits selectively and in a controlled way, the production of tones by intercepting radiation with any part of the player's body and which allows the player complete freedom of motion and therefore permits him to perform a true dance which is translated by the instrument to music. The apparatus has tone signal-generating means corresponding to each tone and characterized in that the tone signal-generating means has an emitter which emits radiation into an elongated emission space, and a sensor which is sensitive to radiation directed towards it from any point of an elongated sensing space, the emission and sensing spaces being in only partially overlapping relationship. |
