Design of infrared hybrid refractive-diffractive lenses.
Design of infrared hybrid refractive-diffractive lenses.
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DOI：
10.1364/ao.31.002253
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发表时间：
1992-05
期刊：
影响因子：
1.9
通讯作者：
A. Wood
中科院分区：
文献类型：
--
作者：
A. Wood
混合折射-衍射元件提供了与传统的双合透镜相似的像差控制水平，而材料的体积仅为传统的双合透镜的一半。讨论了红外元件的设计原则。它示出，为了匹配传统的双合透镜的性能，一般弯月形混合与非球面表面是必需的。一系列的设计实例，包括一个3-5微米波段的Petzval物镜，说明了潜在的优势，以良好的效果。
Hybrid refractive-diffractive elements offer a similar level of aberration control to the conventional doublet with approximately half the volume of material. The design principles of infrared elements are discussed. It is shown that, in order to match the performance of the conventional doublet, a general meniscus hybrid with an aspheric surface is required. The potential advantages are illustrated to good effect by a series of design examples, including a Petzval objective for the 3-5-microm band.