Uncooled infrared multispectral imaging technology based on microlens array and zonal filter

Minghe Wang; Dian Sheng; Pan Yuan; Weiqi Jin; Li Li; Xia Wang; Su Qiu

doi:10.1117/12.3036750

8 November 2024 Uncooled infrared multispectral imaging technology based on microlens array and zonal filter

Minghe Wang, Dian Sheng, Pan Yuan, Weiqi Jin, Li Li, Xia Wang, Su Qiu

Author Affiliations +

Proceedings Volume 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI; 132470Q (2024) https://doi.org/10.1117/12.3036750
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

Industrial hazardous gas leakage detection using infrared imaging technology has become an important area of research and application. However, existing single-band imaging methods face limitations in power consumption and cost. This paper proposes a novel design based on a micro-lens zonal filter array. This system can perform multi-spectral infrared imaging of gas clouds from various typical industrial gas leaks using an uncooled infrared detector. The key innovation is the use of a partitioned filter array to split the incident infrared radiation into different spectral bands and focus them onto distinct regions of the focal plane detector. By simultaneously imaging multiple infrared bands from 3 to 14 μm, the system can effectively detect and differentiate between various gas species in the gas cloud. Preliminary results demonstrate that this approach can improve the detection efficiency of hazardous gas leakage and enable the miniaturization and integration of the infrared imaging system.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Minghe Wang, Dian Sheng, Pan Yuan, Weiqi Jin, Li Li, Xia Wang, and Su Qiu "Uncooled infrared multispectral imaging technology based on microlens array and zonal filter", Proc. SPIE 13247, Infrared, Millimeter-Wave, and Terahertz Technologies XI, 132470Q (8 November 2024); https://doi.org/10.1117/12.3036750

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