Oscillator device and electronic instrument

An electronic instrument comprising:

• an oscillator device;
• and
• an oscillation driving unit that causes the oscillator device to output ultrasonic waves demodulated into sound waves of an audible zone,
• wherein the oscillator device comprises
• a piezoelectric vibrator that includes an elastic member having a plurality of through holes, and a piezoelectric film that is disposed on one surface of the elastic member and is formed of a polymer material, and
• a supporting member that supports an outer circumferential portion of the piezoelectric vibrator.

An electronic instrument comprising:

• an oscillator device;
• an oscillation driving unit that causes the oscillator device to output the ultrasonic waves;
• an ultrasonic wave detection unit that detects sound waves having the same frequency as the ultrasonic waves;
• and
• a distance measurement unit that measures a distance to an object to be measured on the basis of the detected ultrasonic waves,
• wherein the oscillator device comprises
• a piezoelectric vibrator that includes an elastic member having a plurality of through holes, and a piezoelectric film that is disposed on one surface of the elastic member and is formed of a polymer material, and
• a supporting member that supports an outer circumferential portion of the piezoelectric vibrator.