ELECTROSTATIC PUSH-PULL MIRROR IMPROVEMENTS INVISUAL OPTICS

摘要

Deformable membrane mirror technology has a lot of advantages compared to otherdevices for adaptive optics such as liquid crystal modulators, bimorph mirrors, thermalmirrors. Low power consumption, low cost, large dynamic behaviour, achromaticity, nohysteresis, relatively high optical load, good performance in aberrations generation, makethis technology interesting and suitable for being used in a lot of optical applications.Visual optics needs of adaptive optics device with a good stroke and spatial resolution.Dalimier and Dainty showed a comparison within adaptive optics mirrors made fromdifferent technologies. The results show that membrane mirrors, despite their advantages,do not have enough optical power to completely compensate eye aberrations. We proposean improvement of this technology for: increase the maximum optical power, improvethe spatial resolution and use them without biasing the membrane adding push-pullcapabilities by the application of additional electrodes over the top side of the membrane.