Three-dimensional imaging system

Details Three-dimensional imaging system Three-dimensional imaging system

G - Physics

02

B

G02B 27/44 (2006.01) G01C 3/00 (2006.01) G01J 9/00 (2006.01) G02B 5/18 (2006.01) G11B 7/013 (2006.01) G11B 7/135 (2006.01) G11B 7/125 (2006.01) G11B 7/14 (2006.01)

Patent

CA 2322951

A three-dimensional imaging system is described which exploits the defocusing of non-zero diffraction order images caused by the quadratic distortion of a diffraction grating (4). An optical system (1) is used such that objects (5, 6 and 7), located at different distances from grating (4), are imaged simultaneously and spatially separated on a single plane B.

L'invention concerne un système d'imagerie tridimensionnel conçu pour exploiter la défocalisation des images de l'ordre de diffraction non égal à zéro, cette défocalisation étant provoquée par la distorsion quadratique d'un réseau de diffraction (4). On utilise en outre un système optique (1) pour imager simultanément des objets (5, 6, et 7) placés à différentes distances dudit réseau (4), ces objets étant par ailleurs séparés spatialement dans un plan B.

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