In recent years, mini LiDAR systems have become a key sensing technology for applications that require compact design and high precision. At Benewake, we continue to explore and innovate within this field, especially through the integration of SPAD (Single-Photon Avalanche Diode) technology into our micro LiDAR sensor designs. This technology has fundamentally changed how LiDAR detects and processes light, improving accuracy, sensitivity, and overall performance in small-scale sensing systems.

Understanding SPAD Technology and Its Role in Micro LiDAR

A Single-Photon Avalanche Diode (SPAD) is a specialized photodetector capable of sensing individual photons—the smallest possible particles of light. When a photon strikes the SPAD’s active area, it triggers an avalanche of electrons, resulting in a detectable pulse. This allows LiDAR systems to measure distance based on the precise timing of emitted and reflected light pulses, even when light signals are extremely weak.

At Benewake, we integrate SPAD technology into our micro LiDAR sensor architecture to achieve exceptional sensitivity and accuracy in low-light or long-range environments. Compared to traditional photodiodes, SPAD sensors provide faster response times and superior photon detection efficiency, which enables our compact LiDAR systems to deliver stable measurements under challenging conditions such as fog, dust, or night-time operation.

Advantages of SPAD-Based Mini LiDAR Systems

SPAD-based detection allows LiDAR sensors to achieve centimeter-level precision in compact, energy-efficient modules. The benefit lies not only in its accuracy but also in its scalability—SPAD arrays can be integrated into small optical systems without sacrificing performance. For industrial applications like robotic navigation, logistics automation, and environmental monitoring, this combination of miniaturization and precision has opened new opportunities.

Our micro LiDAR sensor solutions are designed to maximize these SPAD advantages. Each unit maintains strong signal-to-noise ratios, consistent ranging accuracy, and stable performance across variable lighting conditions. Through continuous refinement of optical design and signal algorithms, Benewake has developed products such as the TFS series, which bring SPAD precision to compact, cost-effective platforms suitable for industrial sensing and fixed installation projects.

Benewake’s SPAD Innovation in Micro LiDAR Sensors

At Benewake, we believe that advancing LiDAR technology means making it more intelligent, compact, and adaptable. The integration of SPAD detection technology allows our micro LiDAR sensor line to achieve higher reliability and longer service life, ensuring performance consistency in real-world environments. Our TFS20L, for example, is designed as a small yet powerful LiDAR solution optimized for fixed-distance detection tasks. It demonstrates how SPAD-based design principles can be applied in a lightweight, efficient, and easily integrated package.

As we continue to improve sensing precision and durability, we remain committed to delivering trusted LiDAR solutions that support intelligent transportation, robotics, and industrial automation. For us at Benewake, SPAD technology represents not only a scientific breakthrough but also a foundation for smarter and more accessible LiDAR innovation.