G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 7/18 (2006.01) G02B 5/00 (2006.01)
Patent
CA 2631339
The invention concerns an optical instrument (1) comprising at least one mirror called primary mirror (3), arranged in a cavity (2) and comprising an active surface capable of being subjected to instantaneous variations of the incident radiant flux. The invention is characterized in that the cavity (2) comprises an inner rigid envelope (20) around the mirror made of a material having thermal inertia so as to dampen the instantaneous variations of the incident radiant flux thereby enabling the temperature fluctuations of said cavity to be limited, and hence, the fluctuations of the mirror. The invention is applicable to the field of space technology.
L'invention concerne un instrument optique (1) comprenant au moins un miroir dit miroir primaire (3) , placé dans une cavité (2) et comprenant une face active susceptible d'être soumise à des variations instantanées du flux radiatif incident. Selon l'invention la cavité (2) comporte une enveloppe interne rigide (20) autour du miroir constituée d'un matériau présentant une inertie thermique de manière à amortir les variations instantanées du flux radiatif incident permettant ainsi de limiter les fluctuations de température de cette cavité et, par conséquent, les fluctuations de température du miroir. L'invention s'applique au domaine spatial.
Chanal Olivier
Devilliers Christophe
Valentini David
Marks & Clerk
Thales
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