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ProMetric® Y Imaging Photometers
Fast, small-format photometers for production testing of displays, devices, and surfaces.
ProMetric® Y is a series of performance imaging photometers designed for high-volume production testing of displays, keyboards, lighting products, device components, and surfaces. ProMetric Y imaging photometers combine scientific-grade image sensors with photopic filters that capture values of light that reflect standard human visual perception of brightness according to CIE functions. This combination enables you to apply the visual sensitivity of your users while leveraging the benefits of automation—speed, repeatability, and reduced cost—for production-level inspection.
ProMetric Y is available in a range of high-resolution sensor options. These sensors enable pixel-level measurements of displays (LCD, OLED, microLED), evaluation of virtual projections at variable distances and fields of view (head-up displays, augmented reality), and accurate measurement of luminance across light-emitting components.
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ProMetric Y Family
The ProMetric® Y family of rugged, small-form-factor imaging photometers is optimized to test displays, keyboards, assemblies, and cosmetic surfaces in high-volume production settings. The sophisticated measurement performance of this photometer combined with configurable analysis software and local engineering expertise delivers a complete production test solution.
The ProMetric® Y delivers reliable test results and analysis to improve quality and control costs:
- Faster measurements deliver shorter cycle times
- Objective quantification is superior to subjective human inspection
- Faster, more accurate test analysis improves yield
High-Resolution, Scientific-Grade Image Sensors
Each ProMetric Y Imaging Photometer employs a scientific-grade image sensor that is optimized for low image noise to provide accurate, repeatable measurements. ProMetric cameras are designed to maximize resolution and dynamic range to ensure imaging performance. ProMetric Y supports high-speed USB and Ethernet communications.
Available resolutions:
- 2-megapixel (1600 x 1200)
- 16-megapixel (4896 x 3264)
- 29-megapixel (6576 x 4384)
- 43-megapixel (8040 x 5360)
- 45-megapixel (8192 x 5460)
- 61-megapixel (9568 x 6380)
Delivering Smart Technology™ Innovations
- Smart Control™ for fast, precise setup: Smart Control allows you to electronically adjust both focus and aperture settings of your lens.
- Smart Calibration™ for automatic high-accuracy results: ProMetric cameras offer a variety of electronically controlled lenses, each calibrated over a wide range of working distances and aperture settings. ProMetric systems monitor focal distance and aperture settings and automatically applies the correct flat field calibration, greatly simplifying setup and ensuring accurate measurement results.
Calibrations
For highly accurate color and light measurements that match values perceived by the human eye, Radiant cameras and lenses are calibrated to obtain absolute data in any environment. Factory calibration procedures are performed on each Radiant camera to enable traceability to national standards such as NRL, ETL, PTB, and NIST. (Is traceability of your measurement system a critical part of your application? Contact Radiant for additional options and support.)
Each Radiant camera and lens pair can also be calibrated for unique applications, in the factory or in the field, ensuring consistency regardless of variation 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.
Key Features and Highlights
- High Speed: Minimum measurement time (photopic) as fast as 0.2 seconds
- High-resolution sensor options
- Available in photometric and radiometric models
- Multiple lens options: 20 mm, 35 mm, 50 mm, 100 mm macro, and 200 mm
- ProMetric control and analysis software is standard. TrueTest™ Automated Visual Inspection Software and other software modules optional.
ProMetric software includes API support, and provides complete measurement control and Point-of-Interest/Region-of-Interest functionality. In addition, the ProMetric Y imaging photometers are backed by the industry's best product warranty, including direct access to the Radiant Vision Systems technical support team to maximize the utility of your application. For automated testing, ProMetric Y is optimized to work with the industry-leading TrueTest Software—and specialized software modules—for high-volume manufacturing of displays, smartphones, notebooks and more.
Awards and Recognition
The Radiant ProMetric Y Imaging Photometer has been honored with these awards for innovation:
- Laser Focus World – 2020 Innovators Awards; Gold-level (Y43 Imaging System)
- Vision Systems Design – 2020 Innovators Awards; Bronze-level (Y43 Imaging System)
| Parameter | ProMetric Y2 | ProMetric Y16 | ProMetric Y29 | ProMetric Y43 | ProMetric Y45 | ProMetric Y61 |
|---|---|---|---|---|---|---|
| Primary Application |
Production, Lighting |
Production, Display Testing, Pixel-level Measurement, Advanced Vision | ||||
| Sensor Pixel Resolution | 1600 x 1200 | 4869 x 3264 | 6576 x 4384 | 8040 x 5360 | 8192 x 5460 | 9568 x 6380 |
| Sensor Megapixels | 1.9 | 16.0 | 28.8 | 43.1 | 44.7 | 61.0 |
| Sensor Type | CCD | CMOS | ||||
| System Dynamic Range (single exposure, per pixel) |
59 dB (1 x 1 binning) | 66 dB (1 x 1 binning) | 76 dB (1 x 1 binning) | |||
| Luminance (Minimum)* |
0.00001 cd/m2 Limit of Detection |
0.0001 cd/m2 Limit of Detection 0.0002 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% | |||||
| Short-term Repeatability* | Illuminance ± 0.02%; Luminance (Y) ± 0.02% | Illuminance ± 0.03%; Luminance (Y) ± 0.03% |
Illuminance ± 0.02%; Luminance (Y) ± 0.02% |
|||
| Lens Type | Electronically controlled focus and aperture | |||||
| Focal Distances Available | 24, 35, 50, 100, 200 mm | 35, 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° |
35 mm 41° x 28° 50 mm 30° x 20° 100 mm macro 15° x 10° 200 mm 8°x 5° |
35 mm 55° x 37° 50 mm 40° x 28° 100 mm macro 20° x 14° 200 mm 11° x 7° |
35 mm 40° x 27° 50 mm 29° x 19° 100 mm macro 15° x 10° 200 mm 8° x 5° |
35 mm 55° x 37° 50 mm 40° x 28° 100 mm macro 20° x 14° 200 mm 11° x 7° |
|
| Minimum Measurement Time*** | 0.2 sec | 0.6 sec | 1.0 sec | 1.4 sec | 0.5 sec | 0.6 sec |
| Spatial Measurement Capabilities | Luminance, Radiance, Illuminance, Irradiance, Luminous Intensity, Radiant Intensity | |||||
| Units |
foot-lambert, cd/m2, nit, W/sr/m2, foot-candles, lux, lux-s, W/m2, W-s/m2, candela, W/sr |
|||||
| Communication Interface | Ethernet 100/1000, USB 2.0 | 10 Gigabit Ethernet (10 GigE) | ||||
| Power | External AC / DC adapter, 100-240 V, 50-60 Hz, 60 Watts | |||||
| Dimensions (H x W x D) | 86 mm x 86 mm x 154 mm | 86 mm x 86 mm x 170 mm | ||||
| Weight | 1.4 kg | 1.2 kg | ||||
| Operating Temperature | 0 - 30° C | 15 - 35° 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 10ms.
*** For 100 cd/m2, using Ethernet.
Specifications subject to change without notice.
Display Testing
Used for precise measurement of qualities of light across a display, the ProMetric Y Imaging Photometer objectively quantifies spatial luminance, contrast, and uniformity values in addition to defects like mura, light leakage, dead pixels, lines, and particles.
With extremely high-resolution sensor options, the ProMetric Y is ideal for capturing measurements at the pixel and subpixel for light output characterization. In emissive displays like microLED, mini LED, and OLED, independently emitting pixels can vary from one to the next, causing non-uniformity in brightness or color that can worsen at different display bright states. Within a single measurement, the ProMetric Y measures an entire display in exact detail across thousands of emissive pixels, acquiring values for each pixel in the display.
Backlit Symbols
The ProMetric Y paired with TrueTest™ Software automatically applies analysis regions to unique symbols (whether alphanumeric or other shapes). Thresholds can be applied for target luminance values that allow discrete measurement of symbol sets. Evaluate symbol brightness, inter- and intra-character uniformity, and light leakage or reflections from symbols on adjacent surfaces.
Cosmetic Surface Defects
Applying photometric evaluation of subtle fluctuations of light, the ProMetric Y can be utilized for automated visual inspection of surfaces where reflections and contrast variations indicate defects. Using high resolution and dynamic range, the ProMetric Y can classify extremely subtle scratches, dents, missing or distorted elements, debris & particles, smudges, and overall surface uniformity, applying tolerances for acceptable defect type and severity.
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