MIRROR WITH TUNABLE SHAPE OF REFLECTING SURFACE Russian patent published in 1995 - IPC

FIELD: optics. SUBSTANCE: mirror has substrate with reflecting surface 1, to which pushers of actuators 2 are attached, actuators 3, filler 4 made of high-porous cellular material 4, support plate 5, case 6, provided with branches for supplying and removing heat-transfer agent 7. Reflecting plate is connected with the case by resilient bellows 8. Control signals are applied to actuators 3, when mirror is in its working condition. The actuators elongate or shorten under effect of control signals, as result, substrate provided with reflecting coating, is deformed. Varying value of control signals, reflecting surface with preset shaped may be got. If thermal stabilization is necessary, heat-transfer agent is pumped through, which heat-transfer agent is fed along the branches. EFFECT: improved efficiency of operation. 2 cl, 4 dwg, 2 tbl