Frequently Asked Questions

To help you quickly find what you’re looking for, we have compiled the most common customer questions here, with clear and concise answers.

Where are the 3d Cameras Used?

Our sensors are used in industrial quality assurance – wherever micrometer-accurate 3D measurements are required. Typical applications include the inspection of microelectronics, semiconductors, automotive, and precision engineering. Our customers are primarily machine builders, integrators, OEMs, and producers who demand the highest levels of precision and process reliability.

The heliInspect sensors provide 3D measurements with nanometer resolution – even on glossy or transparent surfaces. Unlike methods such as laser triangulation or stereo systems, they measure vertically from above using white light interferometry, which eliminates shadowing issues. This allows them to combine the highest precision with stable performance, even at high speeds.

The sensors capture every surface with high precision – from reflective and transparent materials to rough, structured, or coated surfaces. Thanks to white light interferometry, even challenging surfaces can be measured reliably and reproducibly.

White light interferometry (WLI) has proven itself in laboratories for decades and offers many advantages over alternative optical methods. However, for industrial use, an enormous volume of data must be handled. Standard image sensors result in long measurement times that are incompatible with short cycle times or unavoidable vibrations in production. The Lock-in pixel sensors developed by Heliotis process the interference signals directly within the pixel. This reduces the measurement time by a factor of 100 to 1000, making industrial-grade white light interferometers possible. We also design the pixels for maximum dynamic range, which enables robust measurements even on real, challenging components.

Yes. In addition to our standard products, we also develop customized components for OEM customers – from special lenses and illumination units to individual sensor variants. This allows us to optimally adapt our technology to the respective application and provide customers with a clear competitive advantage.

Integration is straightforward: Our sensors are GenICam-compatible and can be addressed like industrial cameras. Interface modules are available for common fieldbuses (e.g., EtherCAT®, PROFINET®). Additionally, we offer software SDKs and support, enabling integrators and OEMs to quickly integrate the sensors into their systems.

Our cameras operate using white light interferometry (WLI). This optical method uses the superposition of light waves to precisely detect height differences in the nanometer range. Unlike triangulation or stereo methods, WLI measures vertically from above – without shadowing – and provides true 3D data even on glossy or transparent surfaces.

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