Reflectance testing for true isolated 1st surface reflectance ensuring that anti-reflectance coatings are correctly characterized for color and reflectivity.
This unique technology can be used to test both flat and curved transparent surfaces including AR and VR glasses, camera lenses, displays, eyewear, and general transparent samples, up to 0.4mm thin. The Gamma Scientific model 191R-10 Reflectance tester includes Auto Apex finder for curved surfaces and Auto Focus for consistent, fast and accurate measurements.
Test solutions include standalone testers for R&D and automated testers for production.
Auto Apex Finder and Auto Focus for lens R% testing with built-in distance sensor and detection methods.
Fast measurements with Gamma Scientifics’ high-sensitivity spectrometer. signal to noise even for R% of 0.01% or lower.
Highly Accurate & Repeatable Reflection Measurements
- Key application areas: AR and VR glasses, camera lenses, displays, and eyewear
- Built-in Auto Apex finder for curved surfaces and Auto focus.
- All measurement functions are automated. No optical adjustment or tuning needed.
- Rapid measurements possible with integrated high-sensitivity spectrometer by Gamma Scientific with a signal-to-noise ratio even with R% of 0.01% or lower.
| Specifications | ||
| 191 Optical Head | 10 Degree Angle of Incidence | |
| Measurement Type | First surface specular reflection | |
| Sample Type | Glass | |
| Illumination Angle | 10° | |
| Viewing Angle | 10° | |
| Maximum Sample Thickness (first-surface reflectance only) | 0.4mm (transparent samples) | |
| Illumination | Halogen | |
| Spectral Range | 420 to 780nm | |
| Barcode Reader | Integrated with sample fixture | |
| Apex finding and focus | Auto | |
| Measurement Speed (R 0.5%) | 2000 ms | |
| Calibration Reference Standard | Built in BK-7 Polished Glass | |
| 191 Optical Head | 191R-10 Single Angle Optics | |
| Measurement Program Types | 1st surface reflectance | |
| Measurement Locations | Lens Apex | |
| Measurement Cycle Time for R%> 0.5 | 12 seconds | System Dimensions> 0.5 | Height: 1.8 m, Width: 0.6 m, Depth: 0.9 m Weight: approximately 50 |
| Measurement Accuracy | ||
| Average Reflectance | ± 0.001 | |
| Reported Parameters | ||
| R% | Average reflectance: 420 nm to 680 nm, 680 nm to 780 nm | |
| Colorimetric Data | Tristimulus 1931 X,Y,Z CIE 1976 L*, a*, b* | |
