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The optical axis detection
Author(s): Lin Chen; Linhai Huang; Xinyang Li
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Paper Abstract

The optical axis dynamic range and detection sensitivity are limited by the focal length of the image lens. The focus gets used to be lengthened for enhancing the detection sensitivity, but the dynamic range will become narrow. In this paper, we proposed a new optical path structure on the basis of a two-dimension orthogonal diffraction grating. A corresponding experimental setup was built to compare the dynamic range and centroid detection accuracy of the new method and the conventional method under the same experiment conditions. The experimental results show that the optical axis dynamic range is enlarged obviously, and the high-precision centroid is detected at the same time.

Paper Details

Date Published: 25 October 2017
PDF: 11 pages
Proc. SPIE 10460, AOPC 2017: Optoelectronics and Micro/Nano-Optics, 1046008 (25 October 2017); doi: 10.1117/12.2282415
Show Author Affiliations
Lin Chen, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Linhai Huang, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Xinyang Li, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 10460:
AOPC 2017: Optoelectronics and Micro/Nano-Optics
Min Qiu; Min Gu; Xiaocong Yuan; Zhiping Zhou, Editor(s)

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