Design of low temperature infrared off-axis three-mirror collimation system

Table 1. Simulation and analysis results of primary， secondary and tertiary mirrors （λ=632.8 nm）
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Table 1. Simulation and analysis results of primary， secondary and tertiary mirrors （λ=632.8 nm）
Mirror Maximum stress/MPa Maximum displacement/mm PV/nm RMS/nm
Primary mirror 14.5 0.16 λ/15 λ/74
Secondary mirror 17 0.15 λ/17 λ/88
Tertiary mirror 15.5 0.19 λ/13 λ/56

Table 2. Simulation and analysis results of collimation System （λ=632.8 nm）
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Table 2. Simulation and analysis results of collimation System （λ=632.8 nm）
Mirror Maximum stress/MPa Maximum displacement/mm PV/nm RMS/nm
Primary mirror 484 0.43 λ/6 λ/34
Secondary mirror λ/6 λ/30
Tertiary mirror λ/8 λ/41

Table 3. Wavefront error variation of optical system at room and 100 K （λ=632.8 nm）
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Table 3. Wavefront error variation of optical system at room and 100 K （λ=632.8 nm）
Field of view Room temperature（λ） 100 K（λ）
1 0.121 5 0.146 7
2 0.121 5 0.138 6
3 0.110 9 0.125 2
4 0.068 6 0.126 4
5 0.068 6 0.120 9

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Wenxiong LI, Junli SHEN, Xingxiang ZHANG, Zhenyu LU, Zhisheng LI, Hasiaoqier HAN, Qingwen WU. Design of low temperature infrared off-axis three-mirror collimation system[J]. Optics and Precision Engineering, 2023, 31(9): 1285

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Paper Information

Category: Modern Applied Optics

Received: Oct. 13, 2022

Accepted: --

Published Online: Jun. 6, 2023

The Author Email: Junli SHEN (shenjunli1@126.com)

DOI:10.37188/OPE.20233109.1285

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Simulation and analysis results of primary， secondary and tertiary mirrors （λ=632.8 nm）

Table 1. Simulation and analysis results of primary， secondary and tertiary mirrors （λ=632.8 nm）

Table 2. Simulation and analysis results of collimation System （λ=632.8 nm）

Table 2. Simulation and analysis results of collimation System （λ=632.8 nm）

Table 3. Wavefront error variation of optical system at room and 100 K （λ=632.8 nm）

Table 3. Wavefront error variation of optical system at room and 100 K （λ=632.8 nm）