Zoom relay lens for a family of catadioptric objective lenses
Zoom relay lens for a family of catadioptric objective lenses
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用于折反射物镜系列的变焦中继镜
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
Ellis I. Betensky
中科院分区：
文献类型：
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作者：
Ellis I. Betensky
由于变焦距折反射物镜的入射光被遮挡，因此具有与折射物镜不同的特性。变焦中继镜用于在不减小入射光瞳直径的情况下对物镜形成的中间图像进行重影，但相对光圈与焦距成正比。尽管如此，像差是可以纠正的，并且组合场透镜和聚焦透镜的优点以及自由空间的限制允许插入分束器、反射镜、温度补偿透镜和光谱范围校正器。通过在接力透镜的一个或两个共轭上添加不同的透镜，变焦接力器可与口径从100毫米到300毫米的一系列非球面马克苏托夫物镜一起使用。
Because of their obscured entrance pupils, variable focal length catadioptric object lenses have characteristics unlike their refractive counterparts. Zoom relay lenses are used to reimage an intermediate image formed by the objective without any reduction of entrance pupil diameter, but the relative aperture varies directly with focal length. Nonetheless the aberrations are correctable, and advantages of the combined field lens and focussing lens together with the liberal space constraints allow insertion of beam splitters, mirrors, temperature compensating lenses, and spectral range correctors. By adding different lenses on either or both conjugates of the relay lens, the zoom relay is used with a family of aspherized Maksutov objectives ranging in aperture form 100 to 300 millimeters.