NVIS testing for safe and standards-compliant night vision performance
Night Vision Imaging Systems (NVIS) are used in safety-critical applications such as Aviation and defense environments. Light sources and displays must be carefully designed to avoid interference with night vision goggles (NVGs).
Even minimal spectral deviations can lead to glare, reduced contrast, or impaired visibility with night vision goggles. Reliable NVIS testing is therefore essential to ensure compliance with standards such as MIL-L-85762A, MIL-STD-3009, and SAE AS5452.
Accurate measurement is required throughout development, production, and final validation.
The challenge: Reliable NVIS measurement
NVIS testing requires highly precise spectral evaluation under tightly defined conditions. Night vision systems amplify light within a specific spectral range, meaning that even very small unwanted emissions can significantly affect visibility.
At the same time, measurements must strictly follow standardized evaluation methods and remain consistent across different setups and environments.
Key challenges include:
- Extremely high sensitivity to spectral deviations
- Risk of incorrect pass/fail results due to measurement errors
- Requirement for controlled measurement geometry and positioning
- Need for repeatable and comparable results
To meet these requirements, spectral measurement systems must combine high accuracy, wide dynamic range, and stable performance with standard-compliant evaluation and traceable calibration.
Our solution: NVIS testing systems from Instrument Systems
Instrument Systems provides complete NVIS testing solutions based on high-precision spectroradiometers, optimized optics, and application-specific system integration.
The solutions are designed to ensure reliable and repeatable NVIS measurements while meeting the requirements of MIL-L-85762A, MIL-STD-3009, and SAE standards.
- CAS 140D NVIS spectroradiometer
Measurement of radiance spectra from 380 to 1040 nm with dedicated NVIS bandpass filters and high dynamic range
- TOP optical probes with viewfinder camera
Precise spot definition and positioning directly on the DUT, supporting different apertures and measurement geometries
- Flexible positioning systems (e.g. goniometers)
Accurate angle-dependent measurements for displays and lighting systems
- SpecWin Pro software / NVIS SDK
NVIS radiance calculation, standard-compliant evaluation, and automated pass/fail assessment
All systems are delivered fully calibrated, with ISO 17025 traceability to PTB and NIST, ensuring comparable results across laboratories and production environments.
We look forward to meeting your challenge – Please contact us!
1. What is NVIS testing and why is it important?
NVIS testing verifies that light sources and displays are compatible with night vision goggles (NVGs). Even small spectral emissions can cause glare or reduce visibility.
Testing ensures compliance with standards such as MIL-L-85762A and MIL-STD-3009 and is essential in Aviation and defense applications. Instrument Systems provides measurement solutions designed for these requirements.
2. What makes NVIS measurement challenging?
NVIS measurement is highly sensitive because night vision systems amplify light in a narrow spectral range. Even minimal deviations can significantly affect visibility.
Accurate results require high spectral precision, stable measurement conditions, and strict adherence to standards. Specialized measurement systems help ensure reliable and repeatable evaluation.
3. How is NVIS radiance measured accurately?
NVIS radiance is measured using high-precision spectroradiometers with dedicated NVIS filters and wide dynamic range. Special probes for radiance measurement and stable optical coupling are essential to minimize measurement uncertainty.
Integrated software enables standard-compliant evaluation and pass/fail assessment, as implemented in Instrument Systems NVIS solutions.
