Patent ID: 11888464
Assignee: SEIKO EPSON CORPORATION
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. The vibration element according to claim 1,
wherein the arm a first arm, the weight is a first weight, the vibrating arm is a first vibrating arm, and the weight film is a first weight film,
and further comprising:
a second vibrating arm extending from the base to the positive side of the Y axis,
wherein the second vibrating arm is configured with:
a second weight;
a second arm positioned between the base and the second weight; and
a second weight film disposed on the second weight, the second weight includes a third principal surface and a fourth principal surface that are perpendicular to the Z-axis and have a front and back relationship with each other,

wherein a plane passing through a center of the second arm in the Z-axis direction and parallel to the X-Y plane containing the X-axis and the Y-axis is defined as a second center plane,
a center of gravity of the second weight is on a third principal surface side with respect to the second center plane, and
a center of gravity of the second weight film is on a fourth principal surface side with respect to the second center plane,
wherein the second weight includes a third portion and a fourth portion, and the fourth portion is thinner than the third portion in the Z-axis direction,
wherein the fourth principal surface has a stepped shape formed by the third portion and the fourth portion, and
the fourth portion is arranged in a region from an end of the third portion on the positive side of the Y axis to an end of the second weight on the positive side of the Y axis in the plan view from the Z-axis direction.