MOVEMENT AND ELECTRONIC TIMEPIECE

摘要

There is provided a movement including a center wheel & pinion that drives a minute hand, a second wheel & pinion that is arranged coaxially with a center axle of the center wheel & pinion, a first light emitting element that is arranged on one side in an axial direction of the center axle with respect to the center wheel & pinion and the second wheel & pinion, and a first light receiving element that is arranged on the other side in the axial direction of the center axle across the second wheel & pinion, and that detects light emitted from the first light emitting element. The center wheel & pinion has a first center wheel transmittable portion through which the light emitted from the first light emitting element is transmittable, and a second center wheel transmittable portion which is disposed on a rotation trajectory of the first center wheel transmittable portion and through which the light emitted from the first light emitting element is transmittable. The second wheel & pinion has a first second wheel transmittable portion which is disposed on the rotation trajectory of the first center wheel transmittable portion and the second center wheel transmittable portion when viewed in the axial direction of the center axle and through which the light emitted from the first light emitting element is transmittable.

主权项

1. A movement comprising:
a first gear that is rotated by power of a first drive source so as to drive a first indicating hand; a second gear that is arranged coaxially with a center axle of the first gear, and that is rotated by power of a second drive source so as to drive a second indicating hand; a light emitting element that is arranged on one side in an axial direction of the center axle of the first gear, with respect to the first gear and the second gear; and a first light receiving element that is arranged on the other side in the axial direction across the first gear and the second gear, and that detects light emitted from the light emitting element, wherein the first gear has a first transmittable portion through which the light emitted from the light emitting element is transmittable, and a second transmittable portion which is disposed on a rotation trajectory of the first transmittable portion and through which the light emitted from the light emitting element is transmittable, and wherein the second gear has a third transmittable portion which is disposed on the rotation trajectory of the first transmittable portion and the second transmittable portion when viewed in the axial direction, and through which the light emitted from the light emitting element is transmittable.