Design and analysis of bi-flexible mounting structure for large optical lens

doi:10.37188/OPE.20212908.1867

CIOMP OpenIR

	Design and analysis of bi-flexible mounting structure for large optical lens
	Y.-Y. Cao; J.-L. Wang; H.-L. Chu; H.-W. Li; T. Chen; M. Ming and F. Jiang
	2021
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	29 期号:8 页码:1867-1880
摘要	A new bi-flexible mounting structure is presented for the large lenses used in wide-field survey telescopes. Using this bi-flexible structure, the position and surface precision of the lens can be guaranteed, and the influence of barrel elastic deformation can be considerably reduced. First, the limitations of existing mounting structures for large optical lenses and the structure scheme are elaborated upon. Moreover, the mechanical principle and advantages of the proposed bi-flexible structure are discussed. Thereafter, according to the structural components and structural properties of the bi-flexible structure, a mechanical model of this structure is established based on Euler beam theory. Then, assuming the lens to be a rigid body, an integrated stiffness model of the mounting structure, which includes axial, transverse, and rotary stiffnesses, is derived based on the force equilibrium and considering compatible deformation conditions. Finally, a 640 mm test lens is used as an example for experimental verification. The influence of the barrel on the lens surface precision for three types of mounting structures are simulated. In the worst case, as the barrel undergoes the maximum elastic deformation, the lens surface precision is reduced to 50 nm; this indicates that the bi-flexible mounting structure performs better than the other two types of structures. In addition, the optical measurement results show that the minimum root mean square error is 0.05, which further verifies the advantages of the proposed bi-flexible mounting structure. 2021, Science Press. All right reserved.
DOI	10.37188/OPE.20212908.1867
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收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/65137
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y.-Y. Cao,J.-L. Wang,H.-L. Chu,et al. Design and analysis of bi-flexible mounting structure for large optical lens[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2021,29(8):1867-1880.
APA	Y.-Y. Cao,J.-L. Wang,H.-L. Chu,H.-W. Li,T. Chen,&M. Ming and F. Jiang.(2021).Design and analysis of bi-flexible mounting structure for large optical lens.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,29(8),1867-1880.
MLA	Y.-Y. Cao,et al."Design and analysis of bi-flexible mounting structure for large optical lens".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 29.8(2021):1867-1880.

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