Thick meniscus field correctors.


Thick meniscus lenses with almost equal curvatures are routinely used for the correction of spherical aberration in optical systems. The use of such quasi-concentric menisci (QCM) for correction of field curvature and astigmatism is less well known. Three limiting forms of QCM can be identified, namely, equal curvatures, true concentric, and zero deviation… (More)
DOI: 10.1364/AO.21.002799


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