使用无焦望远镜的离轴反射式眼科自适应光学系统的一阶设计。
First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal telescopes.
作者信息
Gómez-Vieyra Armando, Dubra Alfredo, Malacara-Hernández Daniel, Williams David R
机构信息
1Centro de Investigaciones en Optica AC, Loma del Bosque 115, CP 37000, León, Guanajuato, México.
出版信息
Opt Express. 2009 Oct 12;17(21):18906-19. doi: 10.1364/OE.17.018906.
Abstract
Expressions for minimal astigmatism in image and pupil planes in off-axis afocal reflective telescopes formed by pairs of spherical mirrors are presented. These formulae which are derived from the marginal ray fan equation can be used for designing laser cavities, spectrographs and adaptive optics retinal imaging systems. The use, range and validity of these formulae are limited by spherical aberration and coma for small and large angles respectively. This is discussed using examples from adaptive optics retinal imaging systems. The performance of the resulting optical designs are evaluated and compared against the configurations with minimal wavefront RMS, using the defocus-corrected wavefront RMS as a metric.
摘要
给出了由成对球面镜构成的离轴无焦反射望远镜中像平面和光瞳平面最小像散的表达式。这些从边缘光线扇形方程推导出来的公式可用于设计激光腔、光谱仪和自适应光学视网膜成像系统。这些公式的使用、范围和有效性分别受到小角度和大角度下球差和彗差的限制。利用自适应光学视网膜成像系统的例子对此进行了讨论。使用离焦校正的波前均方根作为度量标准，评估并比较了所得光学设计的性能与具有最小波前均方根的配置。
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