Optical design of a wide linear field-of-view, high resolution and compact f-theta laser scanning system

被引：0
|
作者：
Zhang, Tian [1 ,2 ]
Chen, Hailong [1 ,2 ]
Luo, Wenfang [3 ]
Du, Hongye [3 ]
Cheng, Dewen [1 ,2 ]
Wang, Yongtian [1 ,2 ]
机构：
[1] Beijing Inst Technol, Sch Opt & Photon, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Sch Opt & Photon, Beijing Engn Res Ctr Mixed Real & Adv Display, Beijing 100081, Peoples R China
[3] Jiangxi Opt Lens Prod Qual Supervis & Inspect Ctr, Shangrao 334100, Peoples R China
来源：
OPTICAL DESIGN AND TESTING XII | 2023年 / 12315卷
关键词：
Laser scanning; f-theta lens; freeform surface; optical design;
D O I：
10.1117/12.2643829
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A f-theta laser scanning optical system with wide scanning angle, high resolution and compactness is proposed. Specifications of the system are analyzed and calculated. To simplify the optical layout and improve the optical performance, freeform surfaces are used to describe the shape of the lens. The method about how to create a user-defined surface in the optical design software is introduced. The optimization strategy and implementation method of freeform surface are mentioned. The design result achieves a f-theta laser scanning optical system with a field-of-view of +/- 55.6 degrees, a resolution higher than 600 dots per inch, and a total length less than 150mm. The modulation transfer function of the system is close to the diffraction limit and the linear distortion is less than 3 mu m.
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页数：6
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