Design of Aspherical Zoom Optical System in Immersion Lithography Lighting System

被引：0

作者：

Li Mei-xuan ^{[1
,2
]}

Wang Li ^{[1
]}

Dong Lian-he ^{[1
]}

机构：

[1] Changchun Univ Sci & Technol, Changchun 130000, Jilin, Peoples R China

[2] Changchun Univ Sci & Technol, Coll Opt & Elect Informat, Changchun 130000, Jilin, Peoples R China

来源：

ACTA PHOTONICA SINICA | 2018年 / 47卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Optical design; Zoom optical system; Aspheric surface; Immersion lithography; Illumination system;

D O I：

10.3788/gzxb20184701.0122002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An aspherical zoom optical system is designed to solve the problems of adjustment of internal and external coherence factors, lack of energy utilization and short life of module of NA 1.35 immersion lithography system. This zoom optical system consists of both three lenses groups and the stop as well as the image plane. The system consists of 7 pieces of lenses with pupil diameter of 42 mm, view angle of 1.89 degrees, which can realize the focal length of 700 mm similar to 1 830 mm, zoom ratio of 2.16, and the three aspheric surfaces are all designed in concave surfaces of optical elements. The design results show that the system is with good imaging quality of RMS diameter less than 40 mu m and distortion less than 0.5%, which can satisfy the usability requirements of the immersion lithography lighting system.

引用

页数：7