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Volume 11
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10.3390/photonics11080719
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Article

Athermal and Apochromatic Design of Equivalent Two-Component Optical System in 3D Glass Diagram

by
Yingjun Ma
1,2,3,
Hongtao Yang
1,*,
Weining Chen
1,3,
Jianwei Peng
1,2,3,
Huinan Guo
1,3 and
Guangdong Zhang
1
1
Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an 710119, China
2
University of Chinese Academy of Sciences, Beijing 101408, China
3
Key Laboratory of Spacecraft Optical Imaging and Measurement Technology of Xi’an, Xi’an 710119, China
*
Author to whom correspondence should be addressed.
Photonics 2024, 11(8), 719; https://doi.org/10.3390/photonics11080719
Submission received: 28 June 2024 / Revised: 25 July 2024 / Accepted: 30 July 2024 / Published: 31 July 2024
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Abstract

In the athermal and apochromatic design of optical systems, the distribution of lens’ optical powers and the selection of optical glass and structural materials are crucial. In this paper, an athermal and apochromatic design method is proposed for optical systems with a long focal length, large relative aperture, and wide spectrum. Firstly, a complex optical system composed of multiple lenses is equivalent to a two-component, single-lens system consisting of a replacement and an equivalent lens group. The optical glass for the replacement lens group is selected based on weight and the principle of material replacement in the 3D glass diagram, thus achieving an athermal and apochromatic design. Secondly, an athermal and apochromatic optical system with a focal length of 130 mm, an F-number of 2.0, a spectral range of 480 nm~800 nm, a field of view angle of 22°, and an operating temperature of −40 °C~+60 °C is designed. The modulation transfer function (MTF) at each field of view is greater than 0.6 at 50 lp/mm in the −40 °C~+60 °C temperature range, and the secondary spectrum aberration is 0.0056 mm, which is within the focal depth range of the optical system.
Keywords: athermal; apochromatic; 3D glass diagram; equivalent two-component system; optical design athermal; apochromatic; 3D glass diagram; equivalent two-component system; optical design

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MDPI and ACS Style

Ma, Y.; Yang, H.; Chen, W.; Peng, J.; Guo, H.; Zhang, G. Athermal and Apochromatic Design of Equivalent Two-Component Optical System in 3D Glass Diagram. Photonics 2024, 11, 719. https://doi.org/10.3390/photonics11080719

AMA Style

Ma Y, Yang H, Chen W, Peng J, Guo H, Zhang G. Athermal and Apochromatic Design of Equivalent Two-Component Optical System in 3D Glass Diagram. Photonics. 2024; 11(8):719. https://doi.org/10.3390/photonics11080719

Chicago/Turabian Style

Ma, Yingjun, Hongtao Yang, Weining Chen, Jianwei Peng, Huinan Guo, and Guangdong Zhang. 2024. "Athermal and Apochromatic Design of Equivalent Two-Component Optical System in 3D Glass Diagram" Photonics 11, no. 8: 719. https://doi.org/10.3390/photonics11080719

APA Style

Ma, Y., Yang, H., Chen, W., Peng, J., Guo, H., & Zhang, G. (2024). Athermal and Apochromatic Design of Equivalent Two-Component Optical System in 3D Glass Diagram. Photonics, 11(8), 719. https://doi.org/10.3390/photonics11080719

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