NDLI: Design of an omnidirectional single-point photodetector for large-scale spatial coordinate measurement

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Design of an omnidirectional single-point photodetector for large-scale spatial coordinate measurement

Content Provider	Semantic Scholar
Author	Xie, Hongbo Mao, Chensheng Ren, Yongjie Zhu, Jigui Wang, Chao Yang, Lei
Copyright Year	2017
Abstract	Abstract. In high precision and large-scale coordinate measurement, one commonly used approach to determine the coordinate of a target point is utilizing the spatial trigonometric relationships between multiple laser transmitter stations and the target point. A light receiving device at the target point is the key element in large-scale coordinate measurement systems. To ensure high-resolution and highly sensitive spatial coordinate measurement, a high-performance and miniaturized omnidirectional single-point photodetector (OSPD) is greatly desired. We report one design of OSPD using an aspheric lens, which achieves an enhanced reception angle of −5 deg to 45 deg in vertical and 360 deg in horizontal. As the heart of our OSPD, the aspheric lens is designed in a geometric model and optimized by LightTools Software, which enables the reflection of a wide-angle incident light beam into the single-point photodiode. The performance of home-made OSPD is characterized with working distances from 1 to 13 m and further analyzed utilizing developed a geometric model. The experimental and analytic results verify that our device is highly suitable for large-scale coordinate metrology. The developed device also holds great potential in various applications such as omnidirectional vision sensor, indoor global positioning system, and optical wireless communication systems.
File Format	PDF HTM / HTML
DOI	10.1117/1.OE.56.10.104105
Volume Number	56
Alternate Webpage(s)	https://kar.kent.ac.uk/63522/1/Accepted.pdf
Alternate Webpage(s)	https://doi.org/10.1117/1.OE.56.10.104105
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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