Mosaic adaptive bimorph mirror

G - Physics – 02 – B

Patent

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G02B 5/08 (2006.01) G02B 26/08 (2006.01)

Patent

CA 2207470

The invention pertains to the field of adaptive optics and can be used for the static and dynamic guidance of a wave front in a variety of optical devices and systems including astronomical telescopes, industrial laser systems and optical guidance and tracking systems. In the proposed mosaic adaptive bimorph mirror, multilayered local bimorph structures in the form of piezo-electric elements are used to deform the reflecting surface. The piezo-electric elements in question each comprise at least two piezo-ceramic plates (4) fixed on the bottom of a housing (1) the interior cavity of which is filled with an elastic sealant (9).

Cette invention se rapporte au domaine des éléments optiques asservis et peut être utilisée dans la commande dynamique et statique du front d'onde d'un rayonnement dans divers appareils et systèmes optiques tels que dans les télescopes astronomiques ou encore dans les techniques relatives aux lasers industriels ainsi que dans des systèmes optiques de guidage et de poursuite. Ce miroir dimorphe adaptatif et de type mosaïque fait appel à des structures dimorphes locales multicouches permettant d'effectuer la déformation de la surface réfléchissante. Ces structures se présentent sous forme d'éléments piézo-électriques et comprennent au moins deux plaques piézo-céramiques (4) fixées au fond d'un logement de type récipient (1) dont la cavité interne est remplie d'un agent d'étanchéité élastique (9).

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