Optoelectronic system using spatiochromatic triangulation

G - Physics – 01 – B

Patent

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G01B 11/24 (2006.01)

Patent

CA 2607822

There is described an optoelectronic device for surface digitization of an object using spatiochromatic triangulation, the device comprising: a polychromatic light source; relay optics positioned in an illuminating plane of the light source for imaging the light source onto a source slit; a concave diffraction grating for illuminating a measuring space with a continuum of monochromatic images along a measuring cutting plane providing in depth chromatic coding of the object, wherein the object located in the measuring space; an imaging spectrograph having a viewing slit whose image plane aligns with an image generated by the intersection of the cutting plane and the surface of the object; and a grayscale imaging array located in the image plane of the spectrograph for registering the image.

L'invention décrit un dispositif optoélectronique pour la numérisation de surface d'un objet utilisant une triangulation spatiochromatique. Le dispositif comprend : une source de lumière polychromatique; une optique relais positionnée dans un plan éclairant de la source de lumière sur une fente de source; un réseau de diffraction concave pour illuminer un espace de mesure avec un continuum d'images monochromatiques le long d'un plan de coupe de mesure qui fournit un codage chromatique en profondeur de l'objet, lequel est situé dans le volume de mesure; un spectographe d'imagerie ayant une fente d'observation dont le plan image s'aligne avec une image générée par l'intersection du plan de coupe et de la surface de l'objet; et un réseau d'imagerie achromatique situé dans le plan image du spectographe pour enregistrer l'image.

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