Yue Pan, Xiping Xu, Yang Qiao. Optical-Structural-Thermal Analysis of Zoom Infrared Dual-Band Projection Lens[J]. Acta Optica Sinica, 2018, 38(5): 0522001
- Acta Optica Sinica
- Vol. 38, Issue 5, 0522001 (2018)
Fig. 1. Light path of zoom projection lens under different focuses. (a) Long focus; (b) short focus
Fig. 2. Opto-mechanical structure of zoom projection lens. (a) General structure; (b) lens structure
Fig. 3. Mesh model of zoom projection lens
Fig. 4. Temperature field distribution of zoom projection lens under different temperature variations. (a) 13.1 ℃ (b) 21.3 ℃
Fig. 5. Displacement nephogram when temperature variation is 25 ℃
Fig. 6. Schematic of deformation based on vector height
Fig. 7. Fitting results of thermal deformation of aspheric surfaces. (a) Aspheric surface 1; (b) aspheric surface 2
Fig. 8. MTF curves of long-wave wide field under different temperatures. (a) 10 ℃; (b) 35 ℃
Fig. 9. MTF curves of long-wave small field under different temperatures. (a) 10 ℃; (b) 35 ℃
Fig. 10. MTF curves of medium-wave wide field under different temperatures. (a) 10 ℃; (b) 35 ℃
Fig. 11. MTF curves of medium-wave small field under different temperatures. (a) 10 ℃; (b) 35 ℃
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Table 1. Material properties of each component of zoom projection lens
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