G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/18 (2006.01) G02B 5/32 (2006.01) G02B 26/10 (2006.01) G02B 27/09 (2006.01) H01S 5/00 (2006.01) H01S 5/40 (2006.01)
Patent
CA 2329828
Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams produced from commercial-grade laser diodes, over an extended range hitherto unachievable using conventional techniques. The systems and devices of the present invention have uses in a wide range of applications, including laser scanning, optical-based information storage, medical and analytical instrumentation, and the like. In the illustrative embodiments, various techniques are disclosed for implementing the DOEs as holographic optical elements (HOEs), computer-generated holograms (CGHs), as well as other diffractive optical elements.
L'invention concerne des nouveaux procédés servant à concevoir et construire des systèmes et dispositifs optiques miniatures mettant en oeuvre des éléments optiques de diffraction de la lumière, afin de modifier la dimension et la forme de faisceaux laser produits à partir de diodes laser de qualité commerciale, sur une gamme étendue, non atteinte jusqu'alors avec les techniques classiques. Les systèmes et dispositifs de l'invention trouvent un emploi dans une large gamme d'applications, notamment dans le balayage laser, le stockage d'informations optiques, les instruments médicaux et d'analyse, et analogue. A titre d'exemples de modes de réalisations, on décrit diverses techniques de mise en oeuvre de ces éléments optiques de diffraction en tant qu'élément optiques holographiques, hologrammes produits par ordinateur, de même que d'autres éléments optiques de diffraction.
Amundsen Thomas C.
Carullo Thomas
Dickson Leroy
Good Timothy A.
Groot John
Metrologic Instruments Inc.
Smart & Biggar
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