Optoelectronic instrument for real-time characterization of the movement of a moving element of an object and method for measuring such movement.

摘要

The present invention relates to an optoelectronic method and instrument for real-time characterization of movement of movable elements (5) of a mechanical watch gauge. The instrument comprises at least one array of optical sensors (2), an optical lens (3), and a light source (4) arranged to generate an incident light beam (8) on the upper surface of said element , Said incident light beam (8) being reflected on said surface as a beam of specular light (9) and diffracted light beams. The light source (4), the lens (3) and the array of optical sensors (2) are arranged such that at least one of the following two conditions is fulfilled: (A) the incident light beam (8) strikes the surface of the moving body (5) at a non-normal angle of incidence (angle α ≠ 90 °); And / or (b) the light beam reflected at the surface of the moving object (5) and picked up by the sensor (2) starts at an angle of inclined reflection (angle β ≠ 90 °).