Numerical Iterative Design and Analysis of Double Freeform Surface Telecentric F-Theta Lens.

Li Wang, Ke Chen, Xueliang Kang, Hongmei Zheng

Abstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

4 authors.

Li WangSchool of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China.

Ke ChenSchool of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China.

Xueliang KangCollege of Electrical and Information Engineering, North Minzu University, Yinchuan 750021, China.

Hongmei ZhengSchool of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China.

Funding

National Natural Science Foundation of China 11564001National Natural Science Foundation of China 52065002Ningxia Natural Science Foundation 2022AAC03223

6 · The paper itself

Abstract

As one of the most important optical components of a laser scanning system, the f-theta lens group largely determines the working range and scanning accuracy of this system. In this paper, a numerical iterative design method of a double freeform surface telecentric f-theta lens is proposed. Then the scanning linearity and optical transmittance of the designed f-theta lens are simulated and analyzed. The results show that the f-theta lens designed by this method has a compact structure, large scanning area, extremely high optical transmittance over the entire field of view, and stable, controllable error of scanning linearity. Different from the optimization design method of the traditional f-theta lens group, the two freeform surfaces of this f-theta lens can be obtained directly and simultaneously by using this numerical iterative method, which consumes less computational resources and significantly reduces the design complexity.

Indexed as

double freeform surfaces lensf-theta lenslaser scanning systemnumerical iterative design

Identifiers

PMID40871811

DOI10.3390/s25164949

PMCPMC12390288

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.