Gamma Scientific provides a unique, high performance option for reflectance and transmission testing. These systems capture complete spectral and colorimetric properties of thin film coatings with scan times typically less than one second.
Multi-layer film thickness and sample flatness can also be monitored in parallel.
Reflectance and Transmission test systems from Gamma Scientific are available in several configurations. Depending on the sample type and desired measurement result, a variety of system configurations are available for testing either polished (specular) or rough (diffuse) samples. A production selection guide is included in this brochure to help in configuring the best system for your needs.
These systems are ideal for manufacturers who need to obtain fast and accurate measurements of flat panel display glass, anti-reflection coating inspection, photovoltaic (solar cell) coatings, optical filters, lens coatings, paint samples, diffuse plastics and more.
Regardless of the sample, Gamma Scientific offers a solution for your reflectance or transmission measurement needs.
Isolated first surface measurement of thin glass substrates >500 μm thick
Complete spectral analysis
Test coating uniformity and colorimetric analysis
Full cycle testing for R&D or production
| GS-191SA-1045 Semi-Automated Dual Angle Reflectance Measurement Systems | ||
|---|---|---|
| 191 Optical Head | 10 Degree Optics | 45 Degree Optics |
| Measurement Type | First Surface Specular Reflection | First Surface Specular Reflection |
| Sample Types | Glass | Glass |
| Illumination Angle | 10° | 45° |
| Viewing Angle | 10° | 45° |
| Minimum Sample Thickness (First Surface Reflectance Only) | 0.5mm (transparent samples) | 0.25mm (transparent samples) |
| Maximum Sample Thickness | 6mm | 6mm |
| Maximum Sample Size | 325mm x 225mm Panel | 325mm x 225mm Panel |
| Spectral Range | 360nm-830nm | 360nm-830nm |
| Illumination Spot Size (Area of Analysis) | 1mm x 10µm | 1mm x 10µm |
| Measurement Speed (Sample Dependent) | <1500ms | <1500ms |
| Calibration Reference Standard | Built in BK-7 Polished Glass | Built in BK-7 Polished Glass |
| Semi-Auto System Specifications | ||
| 191 Optical Head | 191F-1045 Dual Angle Optics | |
| Measurement Program Types | Five selectable program types, individually configurable for up to five different panel sizes:
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| Measurement Locations |
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| Cycle Time | Program dependent, each measurement point takes ~1500ms | |
| System Dimensions | Height: 1.25m Width: 1.0m Depth: 1.0m Weight: approx. 300kg | |
| Measurement Accuracy | ||
| Spectral Reflectance | ± 0.5% | ± 0.5% |
| Tristimulus (CIE 1931 X, Y, Z) | ± 0.05 | ± 0.10 |
| Chromaticity (CIE 1931 x,y) | ± 0.005 | ± 0.005 |
| LAB Color (CIE 1976 L*, a*, b*) | L* ± 2.0 a*, b* ± 0.8 | L* ± 2.0 a*, b* ± 0.8 |
| Average Reflectance | ± 0.2 | ± 0.2 |
| Reported Parameters | ||
| Spectral Data | Reflectance as a function of wavelength | |
| Colorimetric Data | CIE Tristimulus X, Y, Z, with 2° or 10° View Angle, (L*, a*, b*), (x, y), (u’, v’), and other parameters | |
