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Optical Engineering

Carbon-fiber-reinforced polymer variable-curvature mirror used for optical zoom imaging: prototype design and experimental demonstration
Author(s): Hui Zhao; Xuewu Fan; Zhihai Pang; Guorui Ren; Wei Wang; Yongjie Xie; Zhen Ma; Yunfei Du; Yu Su; Jingxuan Wei
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Paper Abstract

In recent years, optical zoom imaging without moving elements has received much attention. The key to realizing this technique lies in the design of the variable-curvature mirror (VCM). To obtain enough optical magnification, the VCM should be able to change its radius of curvature over a wide range. In other words, the VCM must be able to provide a large sagittal variation, which requires the mirror material to be robust during curvature variation, require little force to deform, and have high ultimate strength. Carbon-fiber-reinforced polymer (CFRP) satisfies all these requirements and is suitable for fabricating such a VCM. Therefore, in this research, a CFRP prototype VCM has been designed, fabricated, and tested. With a diameter of 100 mm, a thickness of 2 mm, and an initial radius of curvature of 1740 mm, this VCM can provide a maximum 23-μm sagittal variation and a minimum and maximum radius of curvature of 1705 and 1760 mm.

Paper Details

Date Published: 3 February 2015
PDF: 13 pages
Opt. Eng. 54(2) 025103 doi: 10.1117/1.OE.54.2.025103
Published in: Optical Engineering Volume 54, Issue 2
Show Author Affiliations
Hui Zhao, Xi'an Institute of Optics and Precision Mechanics (China)
Xuewu Fan, Xi'an Institute of Optics and Precision Mechanics (China)
Zhihai Pang, Xi'an Institute of Optics and Precision Mechanics (China)
Guorui Ren, Xi’an Institute of Optics and Precision Mechanics (China)
Wei Wang, Xi'an Institute of Optics and Precision Mechanics (China)
Yongjie Xie, Xi'an Institute of Optics and Precision Mechanics (China)
Zhen Ma, Xi'an Institute of Optics and Precision Mechanics (China)
Yunfei Du, Xi'an Institute of Optics and Precision Mechanics (China)
Yu Su, Xi'an Institute of Optics and Precision Mechanics (China)
Jingxuan Wei, Xidian Univ. (China)


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