Infrared and Laser Engineering, Volume. 53, Issue 4, 20230645(2024)
Design of automatic out-of-focus correction system for near-space lidar receivers
Figures & Tables(14)
Fig. 1. Temperature distribution trends of different atmospheric models
Fig. 2. Comparison of optical properties of different material combinations at −60 ℃
Table 1. Properties of commonly used materials for mirrors
View tableView in ArticleTable 1. Properties of commonly used materials for mirrors
Material Density ρ/kg·m–3 Elasticity modulus E/GPa Thermal conductivity Kcc/W·m–1·℃–1 Thermal Expansion α/K−1 Poisson ratio ν SiC 3200 400 270 2.5×10−6 0.18 Al/SiC 3010 215 210 7.9×10−6 0.2 K9 2510 81 1.21 7.5×10−6 0.21 Zerodur 2500 92 1.46 0.05×10−6 0.24 Fused Silica 2201 74 1.38 5.6×10−7 0.17 TC4 4440 114 6.8 9.1×10−6 0.34 ZTC4 4400 112 8.8 8.9×10−6 0.29 4J32 810 138.2 14.7 2.4×10−6 0.25 CFRP 1480 9-91.82 9.68 0.5×10−6 0.05-0.3
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Yingchao Li, Qing Zhang, Zhuang Liu, Haodong Shi, Qiang Fu. Design of automatic out-of-focus correction system for near-space lidar receivers[J]. Infrared and Laser Engineering, 2024, 53(4): 20230645
Paper Information
Category: Optical design
Received: Nov. 21, 2023
Accepted: --
Published Online: Jun. 21, 2024
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