Assembly for mounting and correcting the position of an...

G - Physics – 02 – B

Patent

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G02B 7/182 (2006.01) G02B 23/16 (2006.01)

Patent

CA 2318045

The invention concerns an integrated and compact assembly for isostatic mounting a space telescope secondary mirror on a carrier structure, comprising three mounting devices (12), preferably identical and evenly distributed about an axis of symmetry of the element to be supported. Each device (12) has the shape of a deformable triangle whereof a first branch (14), constituted by at least an arm (30) variable in length, is connected to the carrier structure, and whereof the opposite apex, constituted by a support part (20), is connected to the element to be supported. Frictionless and tight articulations (26) connect the triangle branches, thereby enabling the supported element position to be corrected along six degrees of freedom.

Un organe, tel qu'un miroir secondaire d'un télescope spatial, est monté de façon isostatique sur une structure porteuse, par l'intermédiaire d'un ensemble intégré et d'encombrement réduit comprenant trois dispositifs de montage (12), de préférence identiques et régulièrement répartis autour d'un axe de symétrie de l'organe à supporter. Chaque dispositif (12) a la forme d'un triangle déformable dont une première branche (14), matérialisée par au moins un bras (30) de longueur variable, est reliée à la structure porteuse, et dont le sommet opposé, matérialisé par une pièce support (20), est relié à l'organe à supporter. Des articulations sans frottement et sans jeu (26) relient les branches du triangle. Une correction de position de l'organe à supporter, selon six degrés de liberté, peut ainsi être effectuée.

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