经过一天的佩戴,我对博士伦奥澈月抛散光片(ultra for Astigmatism)的表现还是很满意的,镜片的异物感和镜片的稳定性做的都十分出色,可以说基本满足了我日常8-12小时佩戴的使用需求。佩戴全程看下来,镜片的异物感非常微弱,没有产生过明显的异物感,镜片的清晰度和稳定性也很好,基本没有出现过视线模糊,不稳定的现象。干...
Three-fold astigmatism also hampers the correct alignment of the microscope, resulting in additional beam tilt and two-fold astigmatism, and consequently in a further loss of resolution. The amount of three-fold astigmatism of an instrument is found to be stable for periods well in excess of a...
We specifically employ a nonlinear ferroelectric model to incorporate electrostrictive strain, an approach highly suitable for thin-film actuators; an experimental calibration is conducted to determine those material parameters. As the refinement of the active reflector’s shape directly relies on the ...