Piezoelectric vibrating piece, piezoelectric vibrator, oscillator, electronic apparatus and radio controlled timepiece

摘要

A piezoelectric vibrating piece is provided including: a pair of vibrating arm sections; a base section which is provided between the pair of vibrating arm sections; and connecting sections which connect base end sections of the pair of vibrating arm sections and a base end section of the base section, in which the vibrating arm sections have bending points and the vibrating arm sections extend in a direction away from the base section from the base end sections of the vibrating arm sections to the bending points, and the vibrating arm sections extend along the base section from the bending points to leading end sections of the vibrating arm sections.

主权项

1. A piezoelectric vibrating piece comprising:
a pair of vibrating arm sections; a base section between the pair of vibrating arm sections; and connecting sections connecting base end sections of the pair of vibrating arm sections and a base end section of the base section, wherein the vibrating arm sections have bending points and the vibrating arm sections extend in a direction away from the base section and from the base end sections of the vibrating arm sections to the bending points, and the vibrating arm sections extend along the base section from the bending points to leading end sections of the vibrating arm sections, and a length from the base end sections to the leading end sections of the vibrating arm sections is L1, where the length from the base end sections of the vibrating arm sections to the bending points is L2, and a ratio L2/L1 is greater than 0.17.