Diffractive element design for generating multi-channel structured light field

Jia-Zhou Wang; Hui Pang; Man Zhang; Li-Fang Shi; A-Xiu Cao; Qi-Ling Deng; Song Hu

doi:10.1117/12.2245651

25 October 2016 Diffractive element design for generating multi-channel structured light field

Jia-Zhou Wang, Hui Pang, Man Zhang, Li-Fang Shi, A-Xiu Cao, Qi-Ling Deng, Song Hu

Proceedings Volume 9685, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; and Smart Structures and Materials; 96850P (2016) https://doi.org/10.1117/12.2245651
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

With the advantages of small structure and high efficiency, the diffractive element is widely used in the construction of a structured light 3D measurement system. But the working wavelength of diffraction element is single, and the light field generated by the diffraction element is only one channel. We make the original single channel into three channels, so as to achieve from the serial algorithm to parallel algorithm to improve the measurement speed. Based on the lattice light field and the design method of multi wavelength diffraction elements, and in the premise of ensuring the number of points, the traditional lattice points of light field are divided into three channels. These channels are regarded as the target fields, and the diffraction element for generating color structure light field is designed.

Citation Download Citation

Jia-Zhou Wang, Hui Pang, Man Zhang, Li-Fang Shi, A-Xiu Cao, Qi-Ling Deng, and Song Hu "Diffractive element design for generating multi-channel structured light field", Proc. SPIE 9685, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; and Smart Structures and Materials, 96850P (25 October 2016); https://doi.org/10.1117/12.2245651

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KEYWORDS

Diffractive optical elements

Diffraction

Structured light

Quantization

3D metrology

Detection and tracking algorithms

Optical components

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