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- Title
Carbon-fiber-reinforced polymer variable-curvature mirror used for optical zoom imaging: prototype design and experimental demonstration.
- Authors
Hui Zhao; Xuewu Fan; Zhihai Pang; Guorui Ren; Wei Wang; Yongjie Xie; Zhen Ma; Yunfei Du; Yu Su; Jingxuan Wei
- 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.
- Subjects
CURVATURE; SAGITTAL curve; CARBON fiber-reinforced plastics; MAGNIFICATION (Optics); OPTICS
- Publication
Optical Engineering, 2015, Vol 54, Issue 2, p1
- ISSN
0091-3286
- Publication type
Article
- DOI
10.1117/1.OE.54.2.025103