Frontiers of Optoelectronics, 2008, 1 (1): 178, 网络出版: 2012-11-06  

Design of objective lens with reflective spherical Fresnel zone plate

Design of objective lens with reflective spherical Fresnel zone plate
作者单位
State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
摘要
Abstract
An objective lens composed of a spherical Fresnel zone plate mirror and aspheric mirrors is designed. The Fresnel zone plate with a spherical shape is analyzed, and the method to approximately replace the aspherical mirror with spherical Fresnel zone plate is deduced. The objective lens is designed with a single spherical Fresnel zone plate mirror and three aspherical mirrors. Under the condition of 1006magnification, 2.5 Fresnel number and 120u field angle, the modulation transfer function can reach above 40% at 0.6 line pairs/mm on the magnification side, and the distortion is less than 2.2%. This method can provide a reference for the application of Fresnel zone plate in visible light imaging, and has a bright future with the continuous development of the fabrication technique of Fresnel devices.

Zhenrong ZHENG, Xutao SUN, Peifu GU, Xu LIU. Design of objective lens with reflective spherical Fresnel zone plate[J]. Frontiers of Optoelectronics, 2008, 1(1): 178. Zhenrong ZHENG, Xutao SUN, Peifu GU, Xu LIU. Design of objective lens with reflective spherical Fresnel zone plate[J]. Frontiers of Optoelectronics, 2008, 1(1): 178.

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