| 摘要 |
PROBLEM TO BE SOLVED: To provide a mobile phone easier to use.SOLUTION: An external surface almost orthogonal to a main oscillation surface of a piezoelectric bimorph is held so that oscillation of the main oscillation surface becomes free, and an oscillation transmitting part is connected to the main oscillation surface, leading it out from an opening toward outside of a mobile phone so that oscillation of the main oscillation surface is transmitted to a user's ear cartilage. The center portion of the piezoelectric bimorph is held to avoid the main oscillation direction. An elastic material is embedded between the oscillation transmitting part and the opening. An opening is arranged at an upper corner of the mobile phone. An opening is arranged at a side of the mobile phone. The piezoelectric bimorph is held by uneven surfaces which are contacting the piezoelectric bimorph. The piezoelectric bimorph is held by a ridge line to the external surface almost orthogonal to the main oscillation surface of the piezoelectric bimorph. |
