Design of hybrid refractive-diffractive petzval objective in visible band

被引：0
|
作者：
Wang, ZQ [1 ]
Zhang, YN [1 ]
Wu, HB [1 ]
Fu, RL [1 ]
机构：
[1] Nankai Univ, Inst Modern Opt, Key Lab Optoelect Informat Sci & Technol, Minist Educ, Tianjin, Peoples R China
来源：
ISTM/2005: 6th International Symposium on Test and Measurement, Vols 1-9, Conference Proceedings | 2005年
关键词：
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Basing on a conventional 5-element Petzval objective in visible band, we design a hybrid refractive-diffiractive Petzval objective in visible band. The chief optical parameters of the designed Petzval objective are as follows: the effective focal length f equals 101.5mm; the F number equals 1.60, the half field of view HFOV equals 6.79 degrees. The objective consists of 2 materials, 3 elements, a diffractive surface and an aspheric surface, and weighs only thirty percent of the conventional objective. The performance merits of the designed objective are greatly improved as compared with the conventional version, and the optical transfer function MFT is greater than 0.5 at the spatial frequency of 201p/mm, which can satisfy the requirements of modern photograph and photoelectric imagery.
引用
收藏
页码：820 / 822
页数：3
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