Photonfocus 3D triangulation cameras - linchpin for maximum precision and speed

In 3D laser triangulation, the synergy between camera and laser is key to capture precise 3D measurements. In this technique the laser emits a beam onto the object, and the camera records how the laser light reflects off the surface. By analyzing this reflection, the system calculates distances and angles, enabling the creation of an accurate 3D profile of the object.

Our Clusterpartners Photonfocus' 3D laser triangulation cameras play a central role in this process, serving as the linchpin for maximum precision and speed. In a wide range of applications where precise 3D measurements are required, Photonfocus cameras are the critical component that unlocks the full potential of 3D laser triangulation technology. Crucial to their efficiency is also the selection of the right camera based on professional advice from our camera experts.

Fig.1: Photonfocus' 3D laser triangulation cameras (Copyright Photofocus AG, 2025)

3D laser profiling with maximum precision and speed - theory and practice

The theory

In the field of machine vision, 3D laser profiling, also known as 3D laser triangulation, is used in a variety of industries to optimize production processes, for quality control and defect detection. The proven process uses the geometric interaction between the camera and laser to capture and analyze objects in 3D in real time.

The practice

In practice, 3D laser profiling presents system integrators and OEMs with major challenges. Interference and reflections in 3D machine vision applications can significantly impair the reliability of measurement results. The inspection of irrelevant areas can also significantly increase data processing time and slow down processes.

3D laser profiling with Photonfocus cameras

Reliable measurement results

Our 3D cameras use on-board camera filters that minimize interfering influences. The robust algorithms in the camera's FPGA (Field Programmable Gate Array) have been specially developed by Photonfocus to suppress artifacts and reflections. This is of particular importance when it comes to highly reflective materials, as the correct laser line can thus be reliably identified.

Faster data processing

The on-board processing in the FPGA of our cameras allows data to be processed directly in the camera, which leads to a significant reduction in data bandwidth and considerably faster results. Filter functions such as multi-ROI (multiple region of interest), moving ROI and line skipping also enable only relevant areas to be inspected. This saves time and resources.

For more information visit our clusterpartner website and download the whitepaper.