Optical Design and Engineering

Carbon-fiber-reinforced polymer variable-curvature mirror used for optical zoom imaging: prototype design and experimental demonstration

[+] Author Affiliations
Hui Zhao

Chinese Academy of Sciences, Xi’an Institute of Optics and Precision Mechanics, Xi’an 710119, China

Xuewu Fan, Zhihai Pang, Guorui Ren, Wei Wang, Yongjie Xie, Zhen Ma, Yunfei Du, Yu Su

Chinese Academy of Sciences, Xi’an Institute of Optics and Precision Mechanics, Xi’an 710119, China

Jingxuan Wei

Xidian University, School of Computer Science and Technology, Xi’an 710071, China

Opt. Eng. 54(2), 025103 (Feb 03, 2015). doi:10.1117/1.OE.54.2.025103
History: Received March 27, 2014; Accepted January 7, 2015
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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.

© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Hui Zhao ; Xuewu Fan ; Zhihai Pang ; Guorui Ren ; Wei Wang, et al.
"Carbon-fiber-reinforced polymer variable-curvature mirror used for optical zoom imaging: prototype design and experimental demonstration", Opt. Eng. 54(2), 025103 (Feb 03, 2015). ; http://dx.doi.org/10.1117/1.OE.54.2.025103


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