Shack-Hartmann multiple spots with diffractive lenses

F. Castignoles; T. Lepine; P. ChavelG. Cohen

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Shack-Hartmann multiple spots with diffractive lenses

机译：Shack-Hartmann 多光斑与衍射透镜

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In this Letter we aim to bring an understanding to the apparition of multiple spots when using a Shack-Hartmann (SH) wavefront sensor behind diffractive lenses. In contrast to previous work, this phenomenon is described in terms of diffractive orders. It is illustrated with Zemax simulations, where three kinds of diffractive lenses (monofocal, bifocal, and trifocal) are set behind a microlens array. The presence of multiple spots is related to the phase jump of the diffractive profile and also to the number of steps seen through the microlens pupil. The possibility of assessing the optical quality of such lenses using SH measurements is discussed, in particular within the field of ophthalmology, where the need for precautions is underlined.

机译：在这封信中，我们旨在了解在衍射透镜后面使用 Shack-Hartmann （SH）波前传感器时多个点的幻影。与以前的工作相比，这种现象是用衍射阶数来描述的。它以 Zemax 模拟为例，其中三种衍射透镜（单焦点、双焦点和三焦点）被设置在微透镜阵列后面。多个光斑的存在与衍射剖面的相跳有关，也与通过微透镜瞳孔看到的步数有关。讨论了使用 SH 测量评估此类镜片光学质量的可能性，特别是在眼科领域，其中强调了预防措施的必要性。

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来源
《Optics Letters》 |2011年第8期|1422-1424|共3页
作者
F. Castignoles; T. Lepine; P. ChavelG. Cohen;
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作者单位

Laboratoire Hubert Curien (UMR 5516 CNRS), Universite de Lyon, Universite Jean-Monnet, F-42000, Saint-Etienne, France;

Institut d'Optique Rhone-Alpes, 18 Rue Benoit Lauras F-42000, Saint-Etienne, France;

Cabinet d'Ophtalmologie, Lyon, F-69006, France;

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正文语种英语
中图分类计量学;
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机译：Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real‐Space Density Modification Method
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3. Adaptive Spiral Diffractive Lenses—Lenses With a Twist [J] . Geday Morten Andreas, Cano-Garcia Manuel, Oton Jose ManuelQuintana Xabier Advanced Optical Materials . 2020,第23期

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Shack-Hartmann multiple spots with diffractive lenses

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