| 摘要 |
A headphone (10) equipped with a headband (11) and sound-emitting units (12L, 12R). The headband (11) is a band-like body bent into an arched shape. The sound-emitting units (12L, 12R) have a flat shape and are arranged on both ends of the headband (11). The sound-emitting units (12L, 12R) are equipped with a flat film-like piezoelectric actuator (20) arranged on the flat surface of a flat sound emission housing (120). The piezoelectric actuator (20) is configured from a piezoelectric film (200), which comprises an organic piezoelectric material such as PLLA, and first and second driving-use conductors (201, 202), which are arranged on the opposing principal surfaces of the piezoelectric film (200). |
