| 摘要 |
PROBLEM TO BE SOLVED: To provide a water drop removing device capable of easily and reliably removing water drops in a rainy weather, and allowing a person to work with mental stability and the sense of security. SOLUTION: The water drop removing device 100 is installed on an installation surface 201a, and has a piezoelectric element 1 which is oscillated according to an acoustic signal or a traveling wave. The oscillation of the piezoelectric element is transmitted to the installation surface 201a to remove water drops. COPYRIGHT: (C)2009,JPO&INPIT
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