Design of Hybrid Refractive-Diffractive Objective with Super Wide Angle and Fast f-Number

摘要：

To design a hybrid refractive-diffractive objective with super wide angle and fast f-number, the interrelationship of the objective parameters was analyzed and an initial conventional spherical systeM was achieved to fulfill the fundamental performance, then its distortion was corrected by the aspheric surface depositing far from the optical pupil and one of doublets was replaced by hybrid refractivediffractive lens to reduce the size of the system. Using ZEMAX software, the final visible band objective with 100° FOV and f-number 2.5 was obtained by only 6 elements with a smaller size about Φ35 mm×60 mm. Simulation shows that the MTF at 25 lp/mm is greater than 0.45 in the central field and 0.3 in the full field; the maximal distortion is less than 4%, much smaller than 35% of conventional system.

作者: H Zhang X M Ding J B Tan J Liu Z G Lu

作者单位: Institute of Ultra-precision Optoelectronic Instrument Engineering,Harbin Institute of Technology, Harbin 150001, China

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 1025-1030

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）