IMPROVED OPTICAL SURFACE RUGOSITY MEASURING DEVICE, DEVICE FOR CONTROLLING THE POSITIONING OF THE PRISM OF SUCH A DEVICE, METHOD OF CONSTRAINING THE POSITIONING OF THIS PRISM AND METHOD OF POSITIONING THE PRISM

摘要

P This optical measuring device comprises an illumination assembly (14) of an area of the surface (12) connected upstream to a light source by light transmitting means (18) and a set ( 22) for receiving an image of this surface area (12). The light source comprises a laser source and the light transmission means (18) comprise a monomode optical transmission fiber (20) .The invention also relates to a device for controlling the positioning of the prism (34) of such a device , and a method for controlling the positioning of the prism (34) associated with this control device. Finally, it relates to a method of positioning the prism using the above-mentioned positioning control method. / P