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Smart optical interaction simultaneously integrated with optical touch and fingerprint sensing
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Paper Abstract

Finger touch-based interactions relying on real physical touch between the objects and the plane screens are inconvenient to be used in large scale displays, since the size of the screen is beyond the reachable range of the operators. In this work, we propose a novel optical interaction simultaneously integrated with remote optical touch and direct touched fingerprint sensing which includes three layers of transparent optical films embedded with sub-wavelength gratings. The proposed films were validated by the rigorous coupled-wave theory analysis and the coupling efficiency of each layer was optimized via the finite difference time domain (FDTD) simulation. The proposed smart transparent optical interaction system is believed to improve the performance of touching technologies which have significant applications in large screen teaching, meeting and gaming.

Paper Details

Date Published: 9 September 2019
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Proc. SPIE 11105, Novel Optical Systems, Methods, and Applications XXII, 1110511 (9 September 2019); doi: 10.1117/12.2528249
Show Author Affiliations
Yifei Fu, Shanghai Jiao Tong Univ. (China)
Chengliang Wang, Shanghai Jiao Tong Univ. (China)
Xinna Yu, Shanghai Jiao Tong Univ. (China)
Jianquan Zhang, Shanghai Jiao Tong Univ. (China)
Jun Zheng, Shanghai Jiao Tong Univ. (China)
Zhicheng Ye, Shanghai Jiao Tong Univ. (China)


Published in SPIE Proceedings Vol. 11105:
Novel Optical Systems, Methods, and Applications XXII
Cornelius F. Hahlweg; Joseph R. Mulley, Editor(s)

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