LARGE-SIZED LIGHT-WEIGHT MIRROR OF COSMIC TELESCOPE Russian patent published in 1998 - IPC

FIELD: cosmic engineering. SUBSTANCE: cosmic telescope mirror has monolithic unit of T-shaped meridian section. Thin plate is coupled to its rear surface. System of lightening holes is of radial-circular structure, the radial and circular ribs of which are continuous over the entire length. Points of attachment are positioned on rear surface of monolithic unit, on radius which satisfies condition Wextmax

= Wintmax, where Wextmax, Wintmax is deformation of external and internal contours of mirror operating reflecting surface when resting on attachment points. EFFECT: high degree of lightening at sufficiently rigid construction. 2 dwg