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.