ProMetric I61 Imaging Colorimeter

June 8, 2022
Radiant Vision Systems' imaging colorimeter offers the highest-resolution imaging sensor available in tristimulus imaging colorimeters at 61 megapixels.

ProMetric I61 offers the highest-resolution imaging sensor available in tristimulus imaging colorimeters at 61 megapixels (9568 x 6380). This allows the system to maximize the number of sensor pixels applied to measure each display pixel—to ensure measurement accuracy—while still capturing the entire display in a single image—to ensure efficiency. It measures millions of data points, characterizing all pixels in a display in less than 2 seconds. With this speed advantage, manufacturers can apply the ProMetric I61 for production-level applications that include in-line quality control and demura.


ProMetric I imaging colorimeters are designed to address the demands for high-volume manufacturing of displays, backlit components, light sources, and device components. Applying tristimulus color filter technology based on standard CIE color-matching functions, ProMetric I provides highly accurate color and luminance measurements for lab testing and production-level inspection.


Throughout the design and production of light sources and displays, imaging colorimeters are applied to evaluate visual performance based on universal and user-centric light measurement methods. Imaging colorimeters have scientific image sensors and optical filters that allow them to replicate the human eye’s sensitivity to light, following a model of standard human visual perception defined by the CIE (International Commission on Illumination).


The ProMetric I61 provides the foundation for several solutions beyond emissive display testing. The system pairs with several Radiant lens options, including the XRE Lens and AR/VR Lens for measuring displays inside augmented and virtual reality headsets; the FPD Conoscope Lens for view angle measurement of flat panel displays; the Microscope Lens for five to ten-times effective resolution; and standard electronic focus imaging lenses.


Each solution is controlled by a unique TrueTest Software package, developed for a variety of measurement scenarios from AR/VR display testing to automotive head-up display (HUD) characterization.

Sensor Pixel Resolution9568 x 6380Sensor Megapixels61.0Sensor TypeCMOSSystem Dynamic Range
(single exposure, per pixel)76 dB (1 x 1 binning)Luminance (Minimum)0.0005 cd/m2 Limit of Detection
0.0010 cd/m2 @ SNR = 60
0.0015 cd/m2 @ SNR = 100Luminance (Maximum)1,010 cd/m2 with optional ND filtersSystem AccuracyIlluminance ± 3%; Luminance (Y) ± 3%;
Color Coordinates (x,y) ± 0.003Short-term RepeatabilityIlluminance ± 0.02%; Luminance (Y) ± 0.02%;
Color Coordinates (x,y) ± 0.00005Lens TypeElectronically controlled focus and apertureFocal Distances Available50, 100, 200 mmField of View
(Full Angle, H x V degrees)2 in. 40° x 28°
4 in. macro 20° x 14°
8 in. 11° x 7°Minimum Measurement Time0.6 sec - photopic
1.8 sec – colorSpatial Measurement CapabilitiesLuminance, Radiance, Illuminance, Irradiance, Luminous Intensity,
Radiant Intensity, CIE Chromaticity Coordinates, L*a*b* Color Scale,
Correlated Color Temperature (CCT), Dominant WavelengthUnitsfoot-lambert, cd/m2, nit, W/sr/m2, foot-candles, lux, lux-s, W/m2,
W-s/m2, candela, W/sr. CIE (x, y) and (u’, v’), Kelvin (CCT)Communication Interface10 Gigabit Ethernet (10 GigE)Power100 to 240V, 50 to 60 Hz, 140 WLCD Touch PanelResolution: 800 x 600; Diagonal: 5 in.Dimensions (H x W x D)9.4 x 7 x 9 in.Weight4.6 kgOperating Temperature41 to 95°FOperating Humidity20 to 70% non-condensing