Freeform optical surface design in an off-axis reflective imaging system by a double seed curve extension algorithm

Zhang, Yangliu; Wang, Xu; Su, Zhouping; Pan, Hongxiang; Chen, XingTao; Zhang, Wenyu

doi:10.1364/ao.411923

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…Some researchers and scholars have studied the design of the optical system of single star simulators. For example, Changchun University of Science and Technology [14] designed a large aperture off-axis reflective star simulator consisting of an off-axis primary parabolic mirror and a secondary plane mirror in the optical system. The optical system has an aperture of Φ300 mm, a focal length of 3000 mm, a spectral range of 500~900 nm, a field of view of 30 ′ , an aberration of 0.0062%, and a wave phase aberration of 0.0716λ.…”

Section: Introductionmentioning

confidence: 99%

Design of Parabolic Off-Axis Reflector Optical System for Large Aperture Single Star Simulators

Gao,

Sun,

Zhang

et al. 2024

Applied Sciences

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This study proposes a parabolic off-axis reflective optical system design method to reduce the wave aberration of the optical system of a large aperture single star simulator and improve the optical system’s imaging quality. Firstly, we determined the design indexes of the optical system of the large aperture single star simulator by analyzing the technical indexes of the star sensitizer and the development status of the single star simulator; secondly, the initial structural parameters of the optical system were calculated based on the theory of primary aberration; then, we carried out the design optimization of the optical system, the image quality evaluation, and the tolerance analysis using Zemax software; finally, the study tested the wave aberration of the optical system by using the four-dimensional interferometer and the standard mirror together. The simulation results of the optical system are as follows: in the entire field of view, the aberration of the optical system is far less than 0.002%, the modulation transfer function (MTF) reaches the diffraction limit, and the maximum wave aberration is 0.0324 λ. The experimental results are as follows: the maximum wave aberration of the optical system is 0.0337 λ, which is less than 1/25 λ, and it meets the requirements of the index. The simulation and experimental results show that the optical system of the large aperture single star simulator designed by this method has good imaging quality and a simple system structure.

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Section: Introductionmentioning

confidence: 99%

Design of Parabolic Off-Axis Reflector Optical System for Large Aperture Single Star Simulators

Gao,

Sun,

Zhang

et al. 2024

Applied Sciences

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show abstract

“…In optical design research, large numbers of researchers have focused on design methods for the starting point, [20][21][22][23][24][25][26][27][28] such as the nodal aberration theory [29][30][31] and the partial differential equations method. [32] There are also researches on optimization methods.…”

Section: Introductionmentioning

confidence: 99%

Towards Automatic Design of Reflective Optical Systems

Liu

Zhu

2023

Advanced Photonics Research

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Traditional optical design processes can only obtain a few design solutions after a time‐consuming trial‐and‐error process. During this process, how to select the numbers and sequence of surfaces of different types (spherical, aspherical, and freeform) required by the system remains a difficult problem. Currently, no automatic design method is available for reflective optical systems that contain multiple surface types. Therefore, an automatic design framework for reflective systems is proposed that can output a series of design results with various combinations of surface types automatically after input specifications and constraints. In the first design example, 76 design results with imaging qualities near the diffraction limit are obtained that have 11 different surface type combinations. This framework realizes the automatic design of this type of system, paving the way toward general automatic optical design and significantly improving the efficiency of the optical design process. Using this framework, the numbers and sequence of the surfaces of different types required by the optical system can be determined reasonably, solving a difficult problem that has long puzzled designers. The proposed framework reduces the requirement for design experience and allows more people to participate in optical design processes.

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“…Additionally, aberration correction is vitally important in the off-axis reflective zoom system with large relative aperture. To achieve high-resolution imaging, freeform surfaces [5][6][7] are used to correct the higher-order asymmetric aberrations of the system. For example, Xie et al [8] designed an off-axis three-mirror zoom optical system based on freeform surface.…”

Section: Introductionmentioning

confidence: 99%

Optical design of off-axis freeform reflective zoom imaging system with large relative aperture

Cao,

Chang,

Wang

et al. 2023

Optical Design and Testing XIII

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Freeform optical surface design in an off-axis reflective imaging system by a double seed curve extension algorithm

Cited by 10 publications

References 23 publications

Design of Parabolic Off-Axis Reflector Optical System for Large Aperture Single Star Simulators

Design of Parabolic Off-Axis Reflector Optical System for Large Aperture Single Star Simulators

Towards Automatic Design of Reflective Optical Systems

Optical design of off-axis freeform reflective zoom imaging system with large relative aperture

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