LuxiRing: Reducing False Defects for More Reliable Inspection Performance

Is Your Inspection System Rejecting Good Parts?

When machine vision systems generate high levels of false defects, algorithms are often blamed first. However, the root cause is frequently found much earlier in the imaging chain: lighting.

Conventional LED lighting can introduce optical noise, unwanted reflections, and inconsistent contrast, reducing image quality and causing inspection systems to identify defects that do not actually exist.

The result is increased false positives, unnecessary production stops, and unreliable inspection data.

Precision Lighting Powered by LuxiBright®

Powered by our proprietary LuxiBright® technology, LuxiRing delivers ultra-uniform and highly directional illumination specifically engineered for demanding machine vision applications.

By providing consistent and controlled lighting conditions, LuxiRing improves image quality and minimizes the visual artifacts that often lead to false defect detection.

Up to 94% Fewer False Positives

In wafer inspection applications, LuxiRing has demonstrated up to 94% fewer false positives compared to conventional lighting solutions.

This performance translates into:

• More reliable defect detection
• Reduced scrap and unnecessary rejects
• Improved inspection consistency
• Higher overall production efficiency

Designed for Advanced Inspection Applications

With its exceptional brightness uniformity and optical precision, LuxiRing is ideally suited for:

• Semiconductor inspection
• Electronics manufacturing
• Surface inspection
• Industrial metrology
• Automated quality control

👉 Discover how precision lighting can enhance your inspection performance and improve the reliability of your machine vision system.

Video Recap of Our Industrial Vision Day in Lausanne

L.E.S.S. SA looks back on its recent Industrial Vision Day held in Lausanne in partnership with Cognex Corporation and Digiinov.

The event brought together numerous industry professionals to discover our LuxiBright®-powered lighting solutions through live demonstrations and real-world industrial applications.

Real-World Demonstrations

Attendees had the opportunity to explore various machine vision setups and discuss specific challenges related to:

• industrial inspection
• quality control
• defect detection
• vision system optimization

Through practical demonstrations, visitors experienced how advanced lighting directly impacts image quality and inspection performance.

Innovation and Collaboration at the Core

The event also provided a platform to exchange insights, discuss industrial challenges, and showcase the benefits of LuxiBright® technology in demanding applications.

We would like to sincerely thank all guests and partners who joined us during this successful event.

👉 For more information about our machine vision lighting solutions, contact us online.

Image Quality: A Key Driver of Machine Vision Performance

Did you know that image quality drives over 80% of a machine vision system’s performance?

While cameras and software often take center stage, lighting remains one of the most underestimated factors. Yet, it plays a critical role in ensuring precision, reliability, and repeatability in inspection processes.

The Impact of Lighting on Performance

Inadequate lighting can lead to:

• poor contrast
• missed defects
• inconsistent results

On the other hand, optimized lighting enables sharper, more uniform, and highly usable images, significantly improving decision-making processes.

LuxiBright®: A New Standard in Lighting

With LuxiBright® technology, L.E.S.S. SA delivers lighting solutions featuring:

• exceptional uniformity
• high directionality
• long-term stability

These properties ensure unmatched precision and consistency in demanding machine vision applications.

A Portfolio Designed for Your Needs

Our solutions are tailored to a wide range of applications:

• LuxiRing: ideal for high-precision ring lighting applications
• LuxiLine: optimized for advanced line scan systems

Better Lighting. Better Images. Better Decisions.

Improving your lighting means improving your entire inspection process.

👉 Download our datasheet and take your performance to the next level.

L.E.S.S. SA Expands Its Machine Vision Portfolio with the New LuxiLine Range

L.E.S.S. SA continues to expand its machine vision lighting portfolio with the introduction of LuxiLine, a new linear lighting range designed to address the growing performance and integration demands of modern inspection systems.

Developed for demanding industrial environments, the LuxiLine range provides system integrators and OEMs with a flexible solution capable of supporting a wide variety of machine vision applications.

A Linear Lighting Range Engineered for Precision

The LuxiLine range includes three linear lighting solutions, available in multiple sizes to adapt to different inspection configurations.

These solutions were designed to deliver high optical performance while ensuring seamless integration within complex industrial systems.

Key Advantages of the LuxiLine Range

LuxiLine solutions stand out thanks to several key features:

• Ultra-compact architecture, enabling easier integration in space-constrained environments

• Highly directional illumination, ensuring precise surface and detail inspection

• Exceptional brightness uniformity, supporting reliable and repeatable image acquisition

Bringing LuxiBright Technology to Linear Lighting

Built for precision, performance and seamless system integration, the LuxiLine range leverages the benefits of LuxiBright® technology, L.E.S.S.’s proprietary lighting platform.

This technology enables precise light control, improving image quality, defect detection capability and inspection repeatability.

👉 Discover the LuxiLine range and download the full datasheet.

L.E.S.S. SA Expands Its LuxiRing Portfolio for High-Precision Machine Vision

L.E.S.S. SA proudly introduces its new advanced range of ring lights designed for high-precision machine vision applications.

With the launch of the LuxiRing MINI and LuxiRing MAXI, our product portfolio is now complete, offering maximum flexibility to meet the most demanding industrial inspection requirements.

Setting a New Standard in Machine Vision Lighting

Designed for critical inspection environments, the LuxiRing family, powered by our proprietary LuxiBright® technology, sets a new benchmark in optical performance.

Key benefits include:

• Exceptional brightness and perfect uniformity

• High-contrast, ultra-precise imaging

• Ultra-compact to large-format designs for maximum integration flexibility

LuxiBright® technology ensures precise light control, delivering repeatability, stability and performance consistency required in advanced industrial applications.

Target Applications

LuxiRing is optimized for:

• Semiconductor inspection

• Electronics manufacturing

• Advanced industrial inspection systems

From microscopic defect detection to surface analysis and complex component inspection, LuxiRing delivers unmatched precision and reliability.

👉 Download the full datasheet to explore detailed specifications.

Revealing the invisible: detecting scratches and surface defects with LuxiBright

In many machine vision applications, detecting micro-scratches and surface defects remains a significant challenge. Under standard LED lighting, these imperfections often remain invisible, reducing inspection reliability and compromising quality control.

LuxiBright technology from L.E.S.S. offers a fundamentally different approach. Thanks to its controlled light directionality and exceptional illumination uniformity, LuxiBright reveals scratches, surface irregularities, and fine details that diffuse LED lighting simply cannot detect.

Unlike conventional light sources that scatter illumination, LuxiBright creates optimized lighting conditions that enhance contrast and expose even the subtlest defects. This capability significantly improves the reliability of visual inspections, whether in automated systems or camera-assisted analysis.

By adopting LuxiBright, manufacturers gain faster, more accurate, and fully repeatable defect detection, strengthening quality assurance across the entire production process.

Discover our machine vision lighting solutions

OUR PRODUCTS

Series « Did you know? »
How LuxiBright Technology Boosts OCR Accuracy in Machine Vision

In machine vision applications, OCR (Optical Character Recognition) performance is critical to ensuring fast, reliable, and error-free inspection. With our LuxiBright technology, we have demonstrated significantly higher reading rates and fewer false rejects compared to standard LED lighting.

These improvements are made possible through LuxiBright’s exceptional light uniformity, stability, and high-directionality illumination, ideal for precise image processing.

To learn more, you can download the full datasheet of our LuxiRing, a ring light specifically engineered for advanced machine vision systems.

Learn More

Downlaod the Datasheet

The Vision Connect 2025: A Day Dedicated to the Future of Machine Vision

On October 16th, L.E.S.S. SA had the pleasure of attending The Vision Connect 2025 in Zurich — Switzerland’s very first event fully dedicated to machine vision, hosted by Opto Engineering and FruitfulAI AG.

This inaugural edition brought together leading experts, researchers, and key industry players to exchange ideas, explore innovations, and discuss the challenges shaping the next generation of vision systems.

A Day Full of Innovation and Inspiration

Throughout the day, the presentations and discussions highlighted several key insights:

• The growing demand for more compact vision solutions, adapted to increasingly constrained environments.

• The essential role of lighting, which remains irreplaceable despite the progress of deep learning technologies.

These takeaways reaffirm that mastering light remains a cornerstone of achieving optimal performance in machine vision applications.

LuxiRing: Addressing Tomorrow’s Challenges

At L.E.S.S., we fully share this vision.
Our LuxiRing, powered by LuxiBright technology, perfectly embodies this approach — a compact, high-performance, and highly flexible laser-based lighting solution designed to deliver unmatched precision and uniformity.

With LuxiBright, we help manufacturers and integrators design more efficient, lighter, and more precise vision systems that meet the challenges of tomorrow.

Learn more

Discover how our lighting solutions can enhance your machine vision applications:
Explore our Machine Vision Lighting Solutions