Patent ID: 7903245
Filing Date: 2011-03-08
Classification: G01B

Abstract:
1. A multi-beam optical probe for the dimensional measurement of an object provided with a surface, the probe comprising: at least one light source; an optical device supplied with light from the at least one light source to produce a first light beam aiming at the surface of the object in a first direction, a second light beam aiming at the surface of the object in a second direction and a third light beam aiming at the surface of the object in a third direction, wherein the first, second and third directions are angularly spaced apart from each other and intersect with each other at a reference point, and the third direction is outside a plane formed by the first and second directions; a first optical sensor so configured as to detect a reflection of the first light beam scattered from the surface of the object; a second optical sensor so configured as to detect a reflection of the second light beam scattered from the surface of the object; and a third optical sensor so configured as to detect a reflection of the third light beam scattered from the surface of the object.