Infrared and Laser Engineering, Volume. 53, Issue 5, 20240089(2024)
Alignment method of intermediate image plane imperfect imaging near-infrared catadioptric system
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Fig. 3. (a) RMS wavefront error; (b) Fringe Zernike astigmatism(Z5/6); (c) Fringe Zernike coma(Z7/8); (d) Fringe Zernike spherical aberration (Z9)
Fig. 4. Curve of primary aberration under single misalignment amount
Fig. 5. Curve of primary aberration under coupling two misalignment amount
Table 1. Index of optical system
View tableView in ArticleTable 1. Index of optical system
Parameter Index Focal length/mm 450 Field of view/(°) ±0.8 Entrance pupil diameter/mm 150 Waveband/μm 1-1.7 Modulation transfer function >0.6@33 lp/mm Detector pixel size/μm 15
Table 2. Zernike coefficient at full field of view after coarse alignment
View tableView in ArticleTable 2. Zernike coefficient at full field of view after coarse alignment
Field of view Z5 Z6 Z7 Z8 Z9 F(0, 0) 0.066 0.008 −0.034 0.058 0.206 F(0, −1) −0.308 −0.170 −0.216 0.080 0.129 F(0, +1) −0.262 0.080 −0.095 0.085 0.105 F(+1, 0) 0.316 −0.061 −0.088 0.090 0.140 F(−1, 0) 0.604 −0.091 −0.118 −0.012 0.142
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Taixi Chen, Jinxin Wang, He Huang, Binzhi Zhang, Xin Li, Minyan Qiu, Xin Zhang. Alignment method of intermediate image plane imperfect imaging near-infrared catadioptric system[J]. Infrared and Laser Engineering, 2024, 53(5): 20240089
Paper Information
Category: Optical design
Received: Mar. 1, 2024
Accepted: --
Published Online: Jun. 21, 2024
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