The Evolution of PIR Lens: From Security to the "Perception Core" in the AI Era
The Intelligent Revolution Starting from "Perception"
The Intelligent Revolution Starting from "Perception"
Among them, the cylindrical Fresnel lens—often overlooked compared to its concentric cousin—has emerged as a key enabler of next-generation passive infrared (PIR) detection systems.
In this article, we share how Aubor Optical developed a custom 1650nm Fresnel lens for an industrial customer—focusing on material selection, optical design, and practical molding considerations.
Aubor Technology Watch | July 2025
In most passive infrared (PIR) motion detection systems, the Fresnel lens has long been treated as a static, well-understood component. It focuses infrared radiation onto a pyroelectric sensor