Ultra-wide field of view concentric scanning sensor system

G - Physics – 02 – B

Patent

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G02B 13/06 (2006.01)

Patent

CA 2353433

A very compact, high numerical aperture, high resolution, ultra-wide field of view concentric scanning optical sensor. The concentric scanning optical sensor includes a scanning half ball lens having a flat reflective rear surface, outer and inner shell lenses, and a linear focal surface array. The outer shell lens and linear inner shell lens are concentrically disposed about the center of the scanning half ball lens. The linear focal surface array is disposed along a focal surface of the inner shell lens. The scanning optical sensor may also use a full spherical ball with multiple reflecting surfaces to allow for multiple facet scanning.

L'invention porte sur un capteur optique de balayage à lentilles concentriques très compact à grande ouverture numérique, à résolution élevée, et à très grande largeur de champ. Ledit capteur comporte une lentille hémisphérique de balayage présentant une surface arrière plane réfléchissante, des lentilles en coque extérieure et intérieure et une surface linéaire en réseau focalisée. Les lentilles coques sont disposées concentriquement par rapport au centre de la lentille hémisphérique de balayage, tandis que la surface linéaire en réseau l'est autour du centre de la lentille coque intérieure. Le capteur peut jouer le rôle d'une lentille sphérique à plusieurs surfaces réfléchissantes permettant un balayage à facettes.

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