Design and simulation of large-diameter off-axis collimator

Helin Wang; Lixin Meng; Lizhong Zhang

doi:10.1117/12.2679745

18 July 2023 Design and simulation of large-diameter off-axis collimator

Helin Wang, Lixin Meng, Lizhong Zhang

Proceedings Volume 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023); 127224V (2023) https://doi.org/10.1117/12.2679745
Event: International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 2023, Hangzhou, China

Abstract

In this work, a large-aperture and long-focal length off-axis two-trans collimator was designed. Structural design is based on optical specifications. Firstly, the structural design of the main mirror holder was carried out, and the influence of the support method of the main mirror holder on the surface shape of the main mirror was analyzed using ANSYS and MATLAB. The analysis results show that the reflective primary mirror of large-aperture off-axis collimator is supported in such a way that the Root Mean Square (RMS) of the primary mirror is 0.025 λ(λ=632.8nm). The secondary mirror adjustment mechanism is a free moving device and is capable of six degrees of freedom of adjustment. The RMS of the system is 0.054 λ (λ=632.8nm), which meets the design requirements and can provide some guidance for the design of similar structures.

Citation Download Citation

Helin Wang, Lixin Meng, and Lizhong Zhang "Design and simulation of large-diameter off-axis collimator", Proc. SPIE 12722, Third International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2023), 127224V (18 July 2023); https://doi.org/10.1117/12.2679745

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KEYWORDS

Mirrors

Collimators

Off axis mirrors

Deformation

Design and modelling

Deformable mirrors

Imaging systems

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