ProMetric® I imaging colorimeters are made to meet the needs of manufacturers who need to produce large quantities of light sources, backlit components, displays, and other device parts. For lab testing and production-level inspection, ProMetric I offers extremely accurate color and brightness measurements using tristimulus color filter technology, which is based on common CIE color-matching algorithms.
ProMetric I is built using a variety of high-resolution scientific-grade image sensors. These sensors provide precise measurements of LED luminance and color in luminaires or large LED arrays, pixel-level measurements of displays (LCD, OLED), and inter- and intra-character luminance measurements on backlit keyboards and panels.
Overview
ProMetric I Family
The premier image solution for calibrated luminance and chromaticity measurement in the industry is provided by the ProMetric® I line of imaging colorimeters. The system's internal tristimulus color filter offers a natural spectral response aligned with standard CIE color-matching functions. Meanwhile, its high-resolution imaging capability captures and analyzes millions of values simultaneously across extensive fields of view and depths of field.
The ProMetric I's Smart TechnologyTM features simplify operations and make measuring results more accurate. For instance, the electronically regulated focus and aperture adjustment provides calibrated readings across a broad range of working distances and fields of vision. This significantly simplifies measurement setup and enables fully automated remote configuration of production test systems.
Image Credit: Radiant Vision Systems
High-Resolution, Scientific-Grade Image Sensors
The ProMetric I Imaging Colorimeter has a scientific-grade image sensor tuned for low image noise to give precise, repeatable readings. To guarantee imaging performance, ProMetric cameras are built to optimize resolution and dynamic range. ProMetric I supports high-speed USB and Ethernet connectivity.
Purpose-Built for High-Speed Manufacturing
Reliable communications might be difficult in a hostile setting like a production line. Thanks to its compatibility with high-speed USB and Ethernet communications, ProMetric I can operate over long distances with great reliability, even in the most demanding manufacturing situations.
Radiant's industry-leading TrueTestTM Automated Visual Inspection Software is designed to interact seamlessly with ProMetric I. For high-volume displays, lighted keyboards, and lighting goods manufacturing, TrueTest offers a comprehensive turnkey solution with a test sequencing interface that enables many inspections to be completed in line in seconds. Whether users need to expand their test coverage or reduce test time for automated visual inspection, ProMetric I is specifically designed to meet their application needs.
Delivering Smart Technology™ Innovations
- Smart ControlTM can quickly and accurately set up a lens by electronically adjusting its focus and aperture settings.
- Smart CalibrationTM ProMetric cameras offer a choice of electronically controlled lenses, each calibrated over a wide range of working distances and aperture settings. This allows automatic high-accuracy results to automatically apply the proper flat field calibration and monitor the aperture and focal distance settings, substantially simplifying setup and guaranteeing reliable measurement results.
- The ProMetric I Imaging Colorimeter features an integrated touchscreen display interface called Smart TouchTM, which facilitates touch input and streamlines camera setup and control.
Calibrations
Radiant cameras and lenses are calibrated to collect absolute data in any situation, enabling exceptionally accurate color and light measurements that match values perceived by the human eye.
Every Radiant camera undergoes factory calibration processes to allow traceability to national standards, including NIST, ETL, PTB, and NRL.
Every Radiant camera and lens pair may be calibrated for specific applications, either in the factory or on location, guaranteeing consistency despite variations in:
- Focal Distance: Flat-field calibration; Image scaling
- Device Spectral Power Distribution (SPD): Luminance calibration; Color calibrations, such as one-color calibration, four-color calibration (depending on RGB or single-color emitters); LED and white phosphor LED calibration
- Lensing effects: Distortion calibration (if applicable)
Before (left) and after calibration to remove distortion. Image Credit: Radiant Vision Systems
ProMetric I Key Features and Highlights
- Fast, high-resolution image sensors with a dynamic range of greater than 59 dB.
- Neutral density and color filters that satisfy CIE standards closely resemble how people see the world.
- Various lens options using Smart CalibrationTM for an extensive array of distance and aperture configurations
- Includes Radiant ProMetric Software by default for controlling cameras and analyzing light.
- Functions flawlessly with the test sequencing platform for automated applications, Radiant TrueTest Automated Visual Inspection
Radiant Vision Systems ProMetric Software with API support is a ProMetric I imaging colorimeter systems component that offers total measurement control and point-of-interest/region-of-interest capability.
To optimize the application's advantages, the ProMetric I imaging colorimeters come with the finest product warranty in the industry, which includes direct access to Radiant Vision Systems' technical support staff.
ProMetric I is designed to function with industry-leading TrueTest Software and specific software modules for automated testing in the high-volume production of notebooks, displays, smartphones, and other devices.
Image Credit: Radiant Vision Systems
Awards and Recognition
The following accolades for innovation have been given to the ProMetric I Imaging Colorimeter:
- Gold-level Innovators Award for 2022 from Laser Focus World (I61 Imaging System)
- 2022 Innovators Awards for Vision Systems Design; Silver-level (I61 Imaging System)
Specifications
Source: Radiant Vision Systems
| Parameter |
ProMetric I2 |
ProMetric I8 |
ProMetric I16-G |
ProMetric I29 |
ProMetric I61 |
| Primary Application |
Uniformity Testing, R&D, Production Line Testing, Display Testing, Pixel-level Measurement, Color Correction, Advanced Vision |
| Sensor Pixel Resolution |
1600 x 1200 |
3296 x 2472 |
5312 x 3032 |
6576 x 4384 |
9568 x 6380 |
| Sensor Megapixels |
1.9 |
8.1 |
16.1 |
28.8 |
61.0 |
| Sensor Type |
CCD |
CCD |
CMOS |
CCD |
CMOS |
System Dynamic Range
(single exposure, per pixel) |
59 dB (1 x 1 binning) |
59 dB (1 x 1 binning) |
70 dB (1 x 1 binning) |
59 dB (1 x 1 binning) |
76 dB (1 x 1 binning) |
| Luminance (Minimum)* |
0.00001 cd/m2 Limit of Detection
0.0001 cd/m2 @ SNR = 60
0.0005 cd/m2 @ SNR = 100
|
0.00001 cd/m2 Limit of Detection
0.0001 cd/m2 @ SNR = 60
0.0005 cd/m2 @ SNR = 100 |
0.0005 cd/m2 Limit of Detection
0.002 cd/m2 @ SNR = 60
0.0005 cd/m2 @ SNR = 100 |
0.00001 cd/m2 Limit of Detection
0.0001 cd/m2 @ SNR = 60
0.0005 cd/m2 @ SNR = 100 |
0.0005 cd/m2 Limit of Detection
0.0010 cd/m2 @ SNR = 60
0.0015 cd/m2 @ SNR = 100 |
| Luminance (Maximum) |
1010 cd/m2 with optional ND filters |
| System Accuracy** |
Illuminance ± 3%; Luminance (Y) ± 3%; Color Coordinates (x,y) ± 0.003 |
| Short-term Repeatability* |
Illuminance ± 0.02%; Luminance (Y) ± 0.02%; Color Coordinates (x,y) ± 0.00005 |
| Lens Type |
Electronically controlled focus and aperture |
| Focal Distances Available |
24, 35, 50, 100, 200 mm |
24, 35, 50, 100, 200 mm |
24, 35, 50, 100 mm |
50, 100, 200 mm |
50, 100, 200 mm |
Field of View
(Full Angle, H x V degrees) |
24 mm 20° x 15°
35 mm 14° x 10°
50 mm 10° x 8°
100 mm macro 5° x 4°
200 mm 3° x 2° |
24 mm 38° x 30°
35 mm 29° x 22°
50 mm 21° x 16°
100 mm macro 10° x 8°
200 mm 5° x 4° |
24 mm 33° x 19°
35 mm 24° x 14°
50 mm 17° x 10°
100 mm macro 8° x 5° |
50 mm 40° x 28°
100 mm macro 20° x 14°
200 mm 11° x 7° |
50 mm 40° x 28°
100 mm macro 20° x 14°
200 mm 11° x 7° |
| Minimum Measurement Time*** |
0.3 sec - photopic
1.1 sec - color |
0.4 sec - photopic
1.2 sec - color |
0.5 sec - photopic
1.4 sec - color |
0.9 sec - photopic
2.4 sec – color |
0.6 sec - photopic
1.8 sec – color |
| Spatial Measurement Capabilities |
Luminance, Radiance, Illuminance, Irradiance, Luminous Intensity, Radiant Intensity, CIE Chromaticity Coordinates, L*a*b* Color Scale, Correlated Color Temperature (CCT), Dominant Wavelength |
| Units |
foot-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 Interface |
Ethernet 100/1000, USB 2.0 |
Ethernet 100/1000, USB 2.0 |
Ethernet 1000 |
Ethernet 100/1000, USB 2.0 |
10 Gigabit Ethernet (10 GigE) |
| Power |
100-240 V, 50-60 Hz, 140 Watts |
100-240 V, 50-60 Hz, 140 Watts |
100-240 V, 50-60 Hz, 60 Watts |
100-240 V, 50-60 Hz, 140 Watts
|
100-240 V, 50-60 Hz, 140 Watts |
| LCD Touch Panel |
Resolution: 800 x 600; Diagonal: 125 mm |
| Dimensions (H x W x D) |
238 mm x 181 mm x 230 mm |
| Weight |
4.9 kg |
4.9 kg |
4.6 kg |
4.9 kg |
4.6 kg |
| Operating Temperature |
0 - 30 °C |
0 - 30 °C |
5 - 35 °C |
0 - 30 °C |
5 - 35 °C |
| Operating Humidity |
20 - 70% non-condensing |
* Based on a virtual detector size of 100 x 100 pixels.
** Based on illuminant A or user calibration for specific spectra. Based on a virtual detector size of 100 x 100 pixels and a minimum exposure time of 10 ms.
*** For 100 cd/m2, using Ethernet.
System Specifications
- CPU: Intel® CoreTM i7-8086 @ 4.00 GHz
- 32 GB installed RAM
System Requirements
- Windows® 10, 64 bit
- Ethernet 1000 (I16-G)
- Ethernet 100/1000 or USB 2.0 port (I2, I8, and I29)
- Desktop: PCI-E ×8 lane slot (I61)
- Laptop: Thunderbolt 3 Port (I61)
Applications
Radiant's ProMetric I Series imaging colorimeters are designed to satisfy the demands of high-speed manufacturing processes. They combine the advantages of automation and human visual perception accuracy to handle various applications.
- Display color and brightness testing
- LED product light measurement and characterization
- Testing the appearance homogeneity of keypads and LED instrument clusters
Display Testing
The ProMetric I Imaging Colorimeter precisely measures color and light characteristics throughout a display. It measures spatial brightness, contrast, uniformity, and chromaticity (in CIE x, y and u', v'). The system may identify flaws in any display section, including mura, light leakage, and dead pixels or lines.
ProMetric I measures every display's complete chromaticity and brightness, and applying the analysis takes a few seconds. It is the go-to solution for worldwide display panel production manufacturing operations. It also has USB and Ethernet connections and offers extremely dependable operation from camera to camera and line to line.
Image Credit: Radiant Vision Systems
Automotive Systems
The visual performance, regulatory compliance, and consumer pleasure of all lit components within and outside the car, including instrument panels, dome lights, and headlamps, depend heavily on light, color, and dimensional correctness.
When combined with automated analysis software from Radiant's TrueTest platform, the ProMetric I provides the whole measuring solution for systems, from center stacks to instrument panels, from headlamps to head-up displays.
Every ProMetric I system has electronically controlled lenses as standard. This enables manufacturers to quickly and simply adjust focus and aperture settings using software when the distance of the image changes or when necessary for regulatory testing (such as DFF Black Mura Gradient assessment).
Image Credit: Radiant Vision Systems
Lighting
Radiant has decades of experience in light measurement, with applications ranging from big luminaires to individual LEDs. Their expertise includes data collecting for light source modeling and non-uniformity correction for huge LED panels. The ProMetric I is used for both goniometric and non-goniometric light source measurements.
It can assess chromaticity, illuminance, and luminous intensity, as well as geometric features like distribution cut-off gradient and shape. It can also fully characterize a source's three-dimensional output by creating ray sets, IES, or LDT/EULUMDAT files.
Image Credit: Radiant Vision Systems