Infrared structure light projector design for 3D sensing

Bohan Lyu; Meng-Ko Tsai; Chih-Sheng Chang

doi:10.1117/12.2313046

5 June 2018 Infrared structure light projector design for 3D sensing

Bohan Lyu, Meng-Ko Tsai, Chih-Sheng Chang

Proceedings Volume 10690, Optical Design and Engineering VII; 106902O (2018) https://doi.org/10.1117/12.2313046
Event: SPIE Optical Systems Design, 2018, Frankfurt, Germany

Abstract

In mobile devices, 3D Sensing is one of the latest functions. This can be achieved by Time-of-Flight (ToF) method or structured light method. Infrared structure light projector is composed of a laser light source, a collimated lens and a diffractive optics element (DOE). The light sources can be divided into two common types: the Edge Emitting Laser (EEL) or the Patterned Vertical Cavity Semiconductor Emission Laser Array (patterned-VCSEL array). In this paper, we will compare these two optical structures, EEL with high density dots pattern and patterned-VCSEL array with several impulse dots.

Citation Download Citation

Bohan Lyu, Meng-Ko Tsai, and Chih-Sheng Chang "Infrared structure light projector design for 3D sensing", Proc. SPIE 10690, Optical Design and Engineering VII, 106902O (5 June 2018); https://doi.org/10.1117/12.2313046

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