PIEZOELECTRIC VIBRATION PIECE, PIEZOELECTRIC VIBRATOR, OSCILLATOR, ELECTRONIC EQUIPMENT AND ELECTRIC WAVE CLOCK

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric vibration piece capable of performing bending vibration in a basic wave mode while avoiding contact between the tip of a piezoelectric vibration piece and a base part.SOLUTION: The piezoelectric vibration piece has a pair of vibration arm parts 10 and 11; a base part 12 disposed between the pair of vibration arm parts 10 and 11; and connection parts 13 and 14 for connecting base end parts 10a and 11a of the pair of vibration arm parts 10 and 11 to a base end part 12a of the base part 12. The vibration arm parts 10 and 11 respectively have a bending point P, and the vibration arm parts 10 and 11 are extended in a direction away from the base part 12 from the base end parts 10a and 11a of the vibration arm parts 10 and 11 to the bending points P, and the vibration arm parts 10 and 11 are extended along the base part 12 from the bending points P to the top end parts 10b and 11b of the vibration arm parts 10 and 11.