MECHANISM FOR REGULATING THE RATE OF A TIMEPIECE OSCILLATOR

摘要

A microsystem for setting the rate of a timepiece oscillator, including a wheel/inertia block including an off-centre unbalance and a toothing and arranged to pivot with respect to a base plate of the microsystem, which includes an actuator driving a first active click arranged to drive the toothing, and includes a device for stopping the toothing in position, wherein the actuator is a thermomechanical actuator arranged to convert a flow of light energy into a displacement of a distal end of the thermomechanical actuator, which carries a first active click or directly controls a movement of a first active click, and the microsystem is capable of incorporation in a watch including a crystal transparent to predetermined wavelengths ranges and allowing the passage of a light ray to regulate the microsystem.

主权项

1. A microsystem for setting the rate of a timepiece oscillator, comprising at least one wheel/inertia block arranged to pivot with respect to a base plate comprised in said microsystem, said wheel/inertia block comprising an off-centre unbalance and comprising a toothing, said microsystem comprising at least one actuator arranged to drive at least a first active click formed by a click arranged to drive a control wheel, a lever, or a click wheel, said active click being arranged to drive said toothing, and said microsystem comprising at least one means for stopping said toothing in position, wherein at least one said actuator is an optically controlled thermomechanical actuator arranged to convert a flow of light energy into a displacement of a control member comprised in said thermomechanical actuator, which control member carries a said first active click or directly controls a movement of a first said active click.