ToF imaging enables robust 3D sensing in harsh light

Accurate distance measurement in environments with strong ambient light remains a constraint in industrial automation, robotics, and outdoor sensing. In this context, Excelitas introduces the XTOF sensor series and XTOF-M camera modules, designed for high-speed 3D acquisition using time-of-flight technology in both low-light and high-illumination conditions.

High-speed ToF sensing with extended range
The XTOF series consists of fully integrated, monolithic CMOS time-of-flight imagers packaged in compact chip-scale formats. Each sensor measures 2.8 mm × 2.8 mm and supports up to 4000 ToF measurements per second, enabling rapid distance acquisition for dynamic environments.

The sensors achieve a maximum range of up to 240 m, positioning them for applications such as outdoor LiDAR systems, industrial automation, and robotics. The architecture maintains measurement performance under ambient light levels up to 100 kLux, which corresponds to bright sunlight conditions. Operation near the shot noise limit allows high measurement precision even when signal conditions are constrained by noise.

Design optimized for variable lighting conditions
A key requirement in optical sensing systems is maintaining signal integrity despite fluctuating environmental illumination. The XTOF architecture addresses this by ensuring tolerance to both low-light and high-intensity lighting environments without requiring external compensation mechanisms.

This capability is particularly relevant for outdoor robotics and industrial inspection systems, where lighting conditions can vary significantly within a single operating cycle. Maintaining stable performance under such variability supports consistent object detection and distance measurement accuracy.

Integrated modules simplify system deployment
The XTOF-M camera modules integrate the XTOF imager, illumination components, control electronics, and a high-speed serial UART interface into a compact unit. This level of integration reduces system design complexity and enables direct deployment in OEM configurations.

The modules are designed for low power consumption and provide calibrated and compensated output signals. This ensures consistent measurement performance across different operating conditions without requiring extensive external calibration.

Supporting scalable sensing in automated systems
By combining compact sensor design with integrated modules, the XTOF platform addresses the need for scalable 3D sensing in automated environments. Applications include robotic navigation, object detection in production lines, and distance measurement in outdoor LiDAR systems.

The combination of high measurement frequency, extended range, and ambient light tolerance supports deployment in systems where reliable sensing is required across variable environmental conditions, contributing to more stable operation within automated and digitally connected industrial workflows.

Edited by Aishwarya Mambet, Induportals Editor, with AI assistance.

www.excelitas.com