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Spatial Luminance, Illuminance, Luminous Intensity and Colour Analysis
Radiant Imaging ProMetric™ imaging photometers are powerful, CCD-based light and colour measurement instruments that provide for vastly increased productivity compared with traditional “spot” photometers. Whereas a spot photometer can only measure the brightness and colour of one point on a display or light source at a time, a CCD-based ProMetric™ photometer can measure millions of points simultaneously. Moreover, because the ProMetric™ camera views the whole light source at once, localised luminance and colour differences can be easily detected – artefacts that simple spot meters would probably miss.
The ProMetric Camera Family
The ProMetric™ family comprises camera models with pixel resolutions from 512 x 512 to 3072 x 2048:
► PM-1000-0, 10-bit, uncooled, interline CCD, photopic
► PM-1000-1, 10-bit, uncooled, interline CCD, RGB
► PM-1200-1, 12-bit, uncooled, interline CCD, tristimulus
► PM-1400F-0, 14-bit, TE-cooled, full frame CCD, photopic
► PM-1400F-1, 14-bit, TE-cooled, full frame CCD, tristimulus
► PM-1600F-0, 16-bit, TE-cooled, full frame CCD, photopic
► PM-1600F-1, 16-bit, TE-cooled, full frame CCD, tristimulus
The PM-1200-1 camera is available with an internal, motorised filter wheel (version PM-1200N-1) that is fitted with ND0, ND1 and ND2 filters to provide for a wider dynamic range. This allows the camera to measure, for example, an LCD display as well as the display backlight without the need for external filters. The ND filter wheel is fitted as standard to the PM-1400F and PM-1600F models.
The PM-1200, PM-1400F-1 and PM-1600F-1 colour cameras are equiped with a second internal, motorised filter wheel which is fitted as standard with three RGB filters precision matched to the CIE tristimulus XYZ observer functions. For applications with narrow band light sources and in particular white and blue LEDs, a fourth "XB" filter is available which matches the secondary response in the blue of the CIE X tristimulus observer which greatly increases the colorimetric accuracy of the ProMetric™ camera.
For further information on the differences between the models and for guidance on selecting the best camera for your application, download our ProMetric™ Selection Guide.
ProMetric™ Software
Each ProMetric™ imaging photometer comes with a powerful, Windows-based software suite created by Radiant Imaging. This software provides extensive instrument control, data acquisition and image analysis capabilities. The software provides a simple, user-friendly interface to fully automated, pre-programmed capabilities. This enables production line personnel and other operatives to perform sophisticated measurements and tests. However, built-in support for .Net and ActiveX controls allows the experienced user infinite scope to develop customised applications, and to perform automated testing using software such as VB.Net, VC#.Net, LabView, Matlab, VBA, and C++.
Users of ProMetric version 9.1 or later can take advantage of the TrueMURA™ software module. TrueMURA™ adds advanced functionality to ProMetric software to enable the identification and classification of flat panel display mura which are correlated with human perception in terms of Just Noticeable Differences (JND).
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Application-Specific ProMetric™ Light Measurement Systems
In addition to stand-alone ProMetric™ cameras, complete light measurement hardware and/or software solutions based around a ProMetric™ series camera are available for flat panel display goniometric analysis, LED cluster testing and balancing, OLED measurements, keyboard testing, and automotive instrument panel evaluation.
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Imaging Sphere
The Imaging Sphere from Radiant Imaging is an innovative goniophotometer which combines a ProMetric™ CCD Imaging Photometer with a dome collector for instantaneous measurement of the full hemispherical angular luminous intensity, view angle, scatter and colour variation from small light sources, displays and materials.
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