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Liu, J., Li, W., Gu, T., Gao, R., Chen, B., Zhang, F., et al. (2023) Towards a Dynamic Fresnel Zone Model to Wifi-Based Human Activity Recognition. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 7, 1-24.
https://doi.org/10.1145/3596270

has been cited by the following article:

• TITLE: Improving Fresnel Lens Efficiency in PIR Systems via Global Optimization Techniques

  AUTHORS: Vo Quang Sang

  KEYWORDS: Optical Design, Fresnel Lens, Spot Diameter, Global Optimization, PIR Systems

  JOURNAL NAME: Open Access Library Journal, Vol.12 No.4, April 29, 2025

  ABSTRACT: This study investigates the optimization of Fresnel lens designs using Zemax software, with a focus on minimizing beam divergence by controlling the output spot diameter on the image plane. Global and hammering optimization methods were employed to simulate radial and cylindrical Fresnel lenses with distinct groove geometries. The results reveal the presence of spherical and distortion aberrations, which were effectively mitigated through optimization techniques. Simulations were conducted in both sequential and non-sequential modes, incorporating variations in lens parameters such as radius, material, height, depth, and width. The findings demonstrate the potential of optimized Fresnel lenses for applications in imaging, lighting, and passive infrared (PIR) systems.