Smart optical interaction simultaneously integrated with optical touch and fingerprint sensing

Yifei Fu; Chengliang Wang; Xinna Yu; Jianquan Zhang; Jun Zheng; Zhicheng Ye

doi:10.1117/12.2528249

9 September 2019 Smart optical interaction simultaneously integrated with optical touch and fingerprint sensing

Yifei Fu, Chengliang Wang, Xinna Yu, Jianquan Zhang, Jun Zheng, Zhicheng Ye

Proceedings Volume 11105, Novel Optical Systems, Methods, and Applications XXII; 1110511 (2019) https://doi.org/10.1117/12.2528249
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

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.

Citation Download Citation

Yifei Fu, Chengliang Wang, Xinna Yu, Jianquan Zhang, Jun Zheng, and Zhicheng Ye "Smart optical interaction simultaneously integrated with optical touch and fingerprint sensing", Proc. SPIE 11105, Novel Optical Systems, Methods, and Applications XXII, 1110511 (9 September 2019); https://doi.org/10.1117/12.2528249

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