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.
Angular Reflectance and Transmission measurements from 380-1700 nm
Calibrated glass sample
Viewing eyepiece
Fiber Optic coupling to measurement equipment
Regulated quartz Halogen illumination lamp
| 191T Transmission Measurement Systems | ||
|---|---|---|
| 191 Optical Head | 191T | |
| Measurement Type | Total Transmission | |
| Sample Types | Glass or any polished transmissive element | |
| Illumination Angle | 0° | |
| Viewing Angle | 2π (180°) | |
| Minimum Sample Thickness | None | |
| Maximum Sample Thickness | 15mm | |
| Minimum Sample Size | Ø 10mm | |
| Maximum Sample Size | 200mm x 200mm Panel | |
| Illumination Spot Size (Area of Analysis) | Ø 1mm, Ø 2mm, or Ø 3mm (user selectable at time of purchase) | |
| Measurement Speed (Sample Dependent) | ≈300-3000ms | |
| Calibration Reference Standard | BK-7 Polished Glass | |
| Optical Head Dimensions | Height: 350mm (13.75″) Width: 205mm (8.0″) Depth: 225mm (8.85″) Weight: approx. 3.5kg (7.75lbs) | |
| Measurement Accuracy | ||
| Spectral Transmission | ± 0.5% | |
| Tristimulus (CIE 1931 X, Y, Z) | ± 0.05 | |
| Chromaticity (CIE 1931 x,y) | ± 0.005 | |
| LAB Color (CIE 1976 L*, a*, b*) | L* ± 2.0 a*, b* ± 0.8 | |
| Average Transmission | ± 0.2 | |
| Reported Parameters | ||
| Spectral Data | Transmission 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 | |
| Illuminant Weighting | Illuminant A, Illuminant B, Illuminant C, Illuminant D65, or User Specified Custom Illuminant | |
