MEMBRANE MIRROR Russian patent published in 2016 - IPC G02B5/08 

FIELD: optics.

SUBSTANCE: invention can be used for correction of wave front of the radiation beam in conditions of atmospheric turbulence and other phase-distortion effects. Membrane mirror contains vacuumized housing, rim, transparent (2) and opaque (5) electrodes. Between transparent (2) and non-transparent (5) electrodes there is a metal earthed membrane (3) with reflective coating, fixed along the outline of the holder. Note that opaque electrode (5) is made in the form of a dielectric target. Behind dielectric target (5) electron gun (6) is installed with focusing-deflecting system (7).

EFFECT: achieved is high accuracy of phase correction of optical radiation due to minimisation of error processing shape surface of the mirror, as well as reduction of weight, simplified design.

2 cl, 2 dwg