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Infrared structure light projector design for 3D sensing
Author(s): Bohan Lyu; Meng-Ko Tsai; Chih-Sheng Chang
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Paper 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.

Paper Details

Date Published: 5 June 2018
PDF: 8 pages
Proc. SPIE 10690, Optical Design and Engineering VII, 106902O (5 June 2018); doi: 10.1117/12.2313046
Show Author Affiliations
Bohan Lyu, Himax Technologies, Inc. (Taiwan)
Meng-Ko Tsai, Himax Technologies, Inc. (Taiwan)
Chih-Sheng Chang, Himax Technologies, Inc. (Taiwan)

Published in SPIE Proceedings Vol. 10690:
Optical Design and Engineering VII
Laurent Mazuray; Rolf Wartmann; Andrew P. Wood, Editor(s)

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