See better and further. Measure more accurately. Drive more autonomously. Glass-SFR inspex - Windshield measurement for ADAS autonomous driving

Autonomous driving starts with the highest windscreen quality -
With Glass-SFR inspex, a free ride into a safe future

Recognize what others cannot see – decide before it becomes critical: When windscreens become a sensor surface, the need for quantitative, objective testing of their optical properties increases. ADAS systems with autonomous driving level 3 or higher require high windshield quality. This is because the image quality of camera-based ADAS systems is strongly influenced by the optical properties and interaction of the camera lens and windshield. Poor windshield quality leads to poor images from the ADAS systems: The reduction in contrast or a change in optical refractive power in the ADAS camera’s field of view of the vehicle glazing are the main influencing variables here, which must be considered independently of each other.

Why subjective visual inspections of windscreens are no longer sufficient

Modern windscreens are more than just protection against wind and weather: they are functional sensor carriers. Camera and radar systems in modern ADAS applications (from level 3) use the windshield as an optical channel. However, even the smallest distortions, changes in refractive power or loss of contrast in the ADAS camera’s field of vision can lead to interpretation errors in the AI. The methods used to date do not adequately capture these influences. Standardized optical testing under camera-realistic conditions is essential.

Longer camera fields of view – ADAS cameras are increasingly focusing on object distances of over 60 meters.
Growing regulations – Clear standards for the optical quality of windscreens are being developed.
Every detail counts – Even the smallest distortions lead to a loss of contrast and can cause misinterpretations by the AI.

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Insufficient windshield quality does not allow ADAS to see all relevant objects clearly and makes the system “short-sighted”.

The optimized glass quality allows the
ADAS system to see all relevant information clearly into the distance.
A basic requirement for autonomous driving.

Why Glass-SFR inspex is crucial
for the future of autonomous driving

The market development shows a rapidly growing spread of autonomous driving functions with increasing demands on the installed systems. This is why future ADAS camera systems from level 3 upwards require a flawless view – the quality of the vehicle glazing has a decisive influence on this. With Glass-SFR inspex , you can ensure the quality of your vehicle glazing with maximum precision right from the development phase and accelerate the market maturity of autonomous driving technologies.

Examination of the complete image acquisition chain for safe driving:

Glass-SFR inspex analyzes the entire image acquisition chain – from the camera to the windscreen – and ensures that no errors impair the image quality – essential for safe autonomous driving.

Cause-effect analysis to find weak points in the image acquisition:

Glass-SFR inspex enables a detailed cause-and-effect analysis to quickly identify and eliminate weak points in the image acquisition. This improves the reliability and accuracy of ADAS camera systems.

Optional use of camera adapters for flexible development:

camera adapter enables the flexible and precise mounting of original ADAS camera lenses. This is particularly valuable for vehicle and ADAS camera manufacturers as well as design and development service providers who accompany all phases of development and process monitoring.

Shorter development cycles, faster prototyping, better quality assurance:

Through early and automated quality assurance, Glass-SFR inspex shortens development cycles and enables faster prototyping, which accelerates the market launch of ADAS technologies.

Optical performance as the basis for autonomous driving

An ADAS system with autonomous driving level 3 or higher must work without visual impairments. The precise optical performance of the windshield is a decisive factor that directly influences the sensor function. Glass-SFR inspex combines proven optical inspection methods with automated image analysis and maximum repeatability:

Precise 2D diopter analysis – determination of local distortions with maximum spatial resolution

Measurement of the change in optical refractive power – Checking the field of view of the ADAS camera

Modulation Transfer Function (MTF) / Spatial Frequency Response (SFR) measurement – Evaluation of image quality according to ISO 12233

Comparative measurements under real conditions – validation of glass quality at different camera angles

The interaction of these measuring methods makes it possible to ensure the optical precision of vehicle glazing for advanced driver assistance systems.

Convincing added value for our industry partners

Advantages for ADAS experts

Reliable fault diagnosis:
Early identification of visual deviations that could impair ADAS functionality.
Optimization of camera systems:
Ensuring consistently high image quality, which is required for precise image processing in ADAS systems.
Real-time validation of image quality:
Precise measurements under real conditions for error-free object detection and driver assistance.
Scalable test methods:
Integration of precise measurement methods in ADAS test processes in order to keep pace with the further development of the systems.

Glass-SFR inspex enables precise and repeatable validation of optical quality so that the camera systems in autonomous vehicles work reliably under all conditions.

Advantages for car manufacturers

Up to one year faster development:
Development times can be drastically reduced through early quality assurance.
Safeguarding ADAS image processing:
Faulty windscreens are identified before they are installed in vehicles.
Improved system reliability:
Fewer faults in image recognition thanks to visually perfect vehicle glazing.
Reproducible quality inspection:
Automated measuring sequences for consistent results in production.

Glass-SFR inspex offers efficient, standardized and validated quality assurance to meet future requirements for ADAS camera systems.

Advantages for windshield & glass suppliers

Up to one year faster development: Development times can be drastically reduced through early quality assurance.
Safeguarding ADAS image processing: Faulty windscreens are identified before they are installed in vehicles.
Flexible use in production: Can be used directly on the test stand or in the production line.
Reproducible quality inspection: Automated measuring sequences for consistent results in production.

With Glass-SFR inspex , glass suppliers can prove that their products meet the increasing requirements for ADAS-supported vehicles.

Conformity to standards and industrial integration

Glass-SFR inspex is designed for use in standardized quality processes. The software supports ISO-compliant reporting (e.g. ISO 12233, UNECE ADAS requirements) and can be integrated into existing systems.

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Possible applications:

R&D laboratory for validating new windshield geometries
Quality test bench for series components
Comparative studies of various suppliers
System testing in ADAS test environments

Typical application contexts:

Test stations in ADAS pre-development
Approval testing of glass suppliers
EOL test benches in series production
Audit preparation for UNECE regulations

Looking to the future - with optical precision for ADAS

Certified by leading ADAS manufacturers:
LaVision is one of the first companies to have its measurement systems for ADAS windscreens recognized.
Trusted partner of major automotive manufacturers:
Our systems are already in use in quality control at leading OEMs.
Guaranteed market protection: Glass-SFR inspex offers a precise, standardized and repeatable solution that protects automotive manufacturers, ADAS providers and glass producers alike.

More information about our innovative measuring system

Learn more about the product Glass-SFR inspex

Questions & answers about the Glass-SFR inspex

Why is the optical quality of the windshield so crucial for autonomous driving?

Autonomous vehicles use highly sensitive ADAS cameras to anticipate traffic situations. Even minor distortions or loss of contrast in the glass can lead to incorrect image information and faulty object recognition. Glass-SFR inspex enables a differentiated assessment of the optical quality before safety-critical situations arise.

Which parameters are analyzed with the system?

The system measures the Spatial Frequency Response (SFR) or Modulation Transfer Function (MTF) to evaluate the optical quality of the windshield. In addition, a high-precision 2D diopter measurement can be carried out to detect local refractive power deviations. These characteristic values provide information about the contrast image, scattering and geometric distortions of the windshield.

What advantages does the LaVisions Glass-SFR inspex offer ADAS experts?

ADAS experts benefit from Glass-SFR inspex by being able to perform a highly precise, standardized and repeatable analysis of the optical quality of the windscreen. This ensures that the ADAS camera systems work reliably under all conditions and that image processing remains error-free. In addition, the system supports the optimization of camera alignment and minimizes errors that could be caused by distortions or changes in refractive power in the glass.

How do vehicle manufacturers actually benefit from integration?

What advantages does the LaVisions Glass-SFR inspex offer glass manufacturers?

Glass manufacturers can use LaVision’s Glass-SFR inspex to carry out optical quality assurance during production. This leads to greater delivery reliability, lowers production costs, reduces complaints and strengthens the technical basis of trust with OEMs.

What is the difference between MTF and SFR?

The SFR (Spatial Frequency Response) is a more general term for the modulation transfer function (MTF). The MTF is only determined by harmonic spatial frequencies, while the SFR includes these, but can also be obtained in other ways. The representation and interpretation of the MTF is identical to the SFR.

What distinguishes Glass-SFR inspex from other inspection systems?

While conventional test methods often only evaluate individual aspects such as general transparency, Glass-SFR inspex specifically analyzes the interactions between glass and ADAS cameras. In addition, Glass-SFR inspex offers measurement conditions with original camera lenses, it records high-resolution optical deviations and offers automated evaluations. The results are reproducible, standardized and directly usable for international approval procedures.

Make sure you get individual expert advice!

Optimize the quality of your windscreen through quantitative, objective testing of its optical properties. Our experts will help you find the right solution for your requirements.

To your expert advice

Individual quality measurements

Glass-SFR inspex - The leading optical measuring system for measuring windscreens

Our measurement process is used worldwide by leading car manufacturers and has been certified by ADAS market leaders for autonomous driving.
The latest certification was carried out by mobileye.