This Gamma Scientific system combines a state of the art array spectroradiometer with a reflex viewing system and a standard camera lens to provide non-contact spectral measurement of a precisely-defined spot on the display surface.  A USB camera provides a magnified image of the area surrounding the measurement spot, and a laser back-illumination system projects an image of the measurement spot on the display surface. Spot size is determined by working distance (adjusted by the lens-focusing mechanism) and the field of view (FOV; selected by a six-position aperture wheel).

This system is suitable for the following types of test and measurements:

• Photometric Measurements
• Luminance
• Contrast Ratio
• Gamma (Gray Scale/EOTF)
• Color Measurements
• Chromaticity
• Color Temperature (CCT)
• Gamut mapping (RGB plotting)
• Dominant Wavelength & Purity
• White Balance, Gray Balance
• Spectral Characterization

Spectral, Colorimetric, and Photometric results are automatically calculated and displayed by the spectroradiometer's LightTouch software. The software also automates and manages System calibration, making it possible to maintain optimal system calibration with minimal downtime.

Specialized Solutions:

In addition to the standard system described here, Gamma Scientific offers a variety of lens accessories to fit most any working-distance versus measurement-field-size requirement. Other variations and extensions of this basic system are available; when combined with suitable positioning stages, this type of system can readily be adapted to make more complex tests and measurements, including:

• Spatial Uniformity (Flat-field)
• Angular Distribution (Luminance and Color)
• Modulation Transfer Function (MTF)

UDTi and Gamma Scientific applications engineers are ready to work with you to recommend a solution that fits your exact requirements.