ADAPTIVE-OPTICAL DEVICE, OPTICAL SYSTEM AND OPTICAL WAVE FRONT COMPENSATION METHOD

摘要

An adaptive-optical device includes a first deformable mirror (4), which has a reflecting surface (21) reflecting light that has propagated through an atmosphere, and a drive unit (22), which has a plurality of drive elements (23) and one uneven shape of the reflective surface includes a second deformable mirror (5) having a reflective surface (26) reflecting light from the first deformable mirror, and a drive unit (27) having a plurality of drive elements (28) and one uneven shape of the reflective surface, a detector (8) which detects a light intensity of the light from the first deformable mirror and the second deformable mirror, and a controller (10) which drives the drive unit of both the first deformable mirror and the second deformable mirror controls, the controller configured to be capable of a first one perform an update process for controlling the deformable mirror drive unit of the first deformable mirror and the second deformable mirror based on a value detected by the detector to change the uneven shape of the reflective surface of the one deformable mirror, and a second update process for controlling the Drive unit of the other deformable mirror of the first deformable mirror and the second deformable mirror based on a shape change amount of the reflecting surface of the one deformable mirror from a predetermined initial shape by repeatedly performing the first update operation with a predetermined number of repetitions to perform the uneven shape of the reflecting mirror Change the surface of the other deformable mirror.