Use of a microelectromechanical mirror for adaptive optics in the human eye
Use of a microelectromechanical mirror for adaptive optics in the human eye
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DOI：
10.1364/ol.27.001537
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发表时间：
2002-09-01
期刊：
影响因子：
3.6
通讯作者：
Williams, DR
中科院分区：
文献类型：
--
作者：
Doble, N;Yoon, G;Williams, DR
配备自适应光学的眼科仪器提供了快速和自动校正眼睛光学的可能性，以改善视力和改善视网膜图像。限制自适应光学广泛应用的一个因素是波前校正器（如可变形镜）的成本。此外，这些元件的大孔径需要高瞳孔放大倍率，因此系统往往是物理大。我们提出了一个被认为是第一个闭环的结果，当一个紧凑的，低成本的，表面微机械，微机电镜用于视觉自适应光学系统。该镜的校正性能可与4.6 mm瞳孔尺寸的Xinetics镜相媲美。此外，对于瞳孔直径为6.0 mm，残余均方根误差从0.36减小到0.12，单个光感受器在距中央凹1度的瞳孔偏心率处被分辨出来。(C) 2002年美国光学学会。
Ophthalmic instrumentation equipped with adaptive optics offers the possibility of rapid and automated correction of the eye's optics for improving vision and for improving images of the retina. One factor that limits the widespread implementation of adaptive optics is the cost of the wave-front corrector, such as a deformable mirror. In addition, the large apertures of these elements require high pupil magnification, and hence the systems tend to be physically large. We present what are believed to be the first closed-loop results when a compact, low-cost, surface micromachined, microelectromechanical mirror is used in a vision adaptive-optics system. The correction performance of the mirror is shown to be comparable to that of a Xinetics mirror for a 4.6-mm pupil size. Furthermore, for a pupil diameter of 6.0-mm, the residual rms error is reduced from 0.36 to 0.12 mum and individual photoreceptors are resolved at a pupil eccentricity of 1degrees from the fovea. (C) 2002 Optical Society of America.