| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for changing lights always around us in our daily lives such as streetlights and street illuminations into music.SOLUTION: An optical sensor or a light receiving sensor (light receiving element) is prepared for a piano keyboard divided according to different letter names and musical scales, lights and light rays entering from an entrance port E, where setting of a light source and various different adjustments are possible, are emitted by perceptional operation control of a movable reflecting plate C, and a light receiving element keyboard A is played.SELECTED DRAWING: Figure 1 |
