Mechanical method to reduce aberrations for a two-sided coating axisymmetric optical lens based on the specialized finite element method

Long Xu; Yong-Chen Pei; Dongping Wang; Zhihui Wu

doi:10.1364/AO.504800

Applied Optics
Vol. 63,
Issue 2,
pp. 429-436
(2024)
•https://doi.org/10.1364/AO.504800

Mechanical method to reduce aberrations for a two-sided coating axisymmetric optical lens based on the specialized finite element method

Long Xu, Yong-Chen Pei, Dongping Wang, and Zhihui Wu

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Long Xu, Yong-Chen Pei, Dongping Wang, and Zhihui Wu, "Mechanical method to reduce aberrations for a two-sided coating axisymmetric optical lens based on the specialized finite element method," Appl. Opt. 63, 429-436 (2024)

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- Optical Design and Fabrication
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About this Article
History
- Original Manuscript: September 1, 2023
- Revised Manuscript: November 26, 2023
- Manuscript Accepted: December 8, 2023
- Published: January 8, 2024

Abstract

Two-sided coated optical lenses are important in optical applications. A film-stress-induced aberration can adversely affect the lens performance. In this paper, a mechanical method has been developed to reduce this aberration. The proposed method uses a specialized finite element method with an easy modeling process and high versatility to analyze the impact of film parameters (including stress, the thickness, and the coating range) on aberrations under different lens geometric parameters. Theoretically, by selecting the property film parameters within the range of an application’s requirements can reduce the aberrations. The proposed method could reduce film-stress-induced aberrations to make the aberration compensation easier.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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References	Method	Classification	Contribution
Yang and Xing [3]	Advanced compensation in processing	Specific processing	Compensating the gravity-induced aberration of the lens
Koike [8] et al.	Sphere lens with a spherical gradient index		Reducing the spherical aberration of the lens
Zhao [6] et al.	Bellows actuators	Additional structures	Compensating the astigmatism aberration of the optical system
Zahraa [7] et al.	Triplet lens		Compensating the spherical and chromatic aberration of the optical system
Wu [9] et al.	Adaptive optics system		Compensating aberrations of the optical system
Yu [10] et al.	Apparatus to actively heat and cool lens		Compensating the heat-induced aberration of the optical system
Jamali and Bos [11]	Additional Pancharatnam lens		Correcting the chromatic aberration of the lens
This work	Balancing the effect of two films by optimizing the film stress, film thickness and coating range	Mechanical method (film balance)	Reducing the film-stress-induced aberration of the lens

	$R$ (mm)	$R_{c 1} / R_{c 2}$ (mm)	$R_{p 1} / R_{p 2}$ (mm)	$H_{0}$ (mm)	$P_{1} / P_{2}$ (mm)
Biconvex	80	70/70	70/70	10	1500/-1500
Biconcave	80	70/70	70/70	10	-1500/1500

References	Method	Classification	Contribution
Yang and Xing [3]	Advanced compensation in processing	Specific processing	Compensating the gravity-induced aberration of the lens
Koike [8] et al.	Sphere lens with a spherical gradient index		Reducing the spherical aberration of the lens
Zhao [6] et al.	Bellows actuators	Additional structures	Compensating the astigmatism aberration of the optical system
Zahraa [7] et al.	Triplet lens		Compensating the spherical and chromatic aberration of the optical system
Wu [9] et al.	Adaptive optics system		Compensating aberrations of the optical system
Yu [10] et al.	Apparatus to actively heat and cool lens		Compensating the heat-induced aberration of the optical system
Jamali and Bos [11]	Additional Pancharatnam lens		Correcting the chromatic aberration of the lens
This work	Balancing the effect of two films by optimizing the film stress, film thickness and coating range	Mechanical method (film balance)	Reducing the film-stress-induced aberration of the lens

	$R$ (mm)	$R_{c 1} / R_{c 2}$ (mm)	$R_{p 1} / R_{p 2}$ (mm)	$H_{0}$ (mm)	$P_{1} / P_{2}$ (mm)
Biconvex	80	70/70	70/70	10	1500/-1500
Biconcave	80	70/70	70/70	10	-1500/1500

Abstract

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Applied Optics