Bingrui ZHANG, Zhiwang YANG, Chenzhong ZHANG, Weihua ZHAO. Application of Alvarez lens in small movement infrared zoom lens[J]. Infrared and Laser Engineering, 2024, 53(12): 20240364
- Infrared and Laser Engineering
- Vol. 53, Issue 12, 20240364 (2024)
Fig. 1. Alvarez lens change focal length
Fig. 2. Fringe Zernike wave aberration coefficient of Alvarez lens when f' =50 mm. (a) d =5 mm, t =0.5 mm; (b) Aperture is 25 mm, t =0.5 mm; (c) Aperture is 25 mm, d =10 mm
Fig. 3. Wavefront aberration vs field, f' =50 mm, apeture is 25 mm, t =0.5 mm, d =10 mm
Fig. 4. Aberration field center on x direction with different apertures and d when f' =50 mm, t =0.5 mm
Fig. 5. Aberration field center on x direction vs t when f' =50 mm, aperture is 25 mm and d =10 mm
Fig. 6. Five group zoom lens
Fig. 7. Design result for zoom lens
Fig. 8. MTF for each zoom
Fig. 9. Optical power and decenter of Alvarez lens. (a) Relation between φ 2 and φ 4; (b) Relation between the decenter of Alvarez lens and the focal length
Fig. 10. Astigmatism field map
Fig. 11. Coma field map
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Table 1. Correspondence between the order of Fringe Zernike polynomial and xy polynomial
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Table 2. Optical paramters for the zoom lens
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Table 3. f' =600 mm Fringe Zernike polynomial coefficient
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