Radiant’s new 20X Microscope Lens can be used for testing small components and features such as individual LEDs, microLEDs, and microOLEDs, along with display pixels and sub-pixels.
Capable of mounting directly on to Radiant’s imaging colorimeter and photometer, the lens comes pre-installed with Radiant’s proprietary software for intuitive system setup and configurable automated measurement sequences.
According to Radiant, the magnification of the 20X Microscope Lens enables the imaging colorimeter or photometer to focus a greater number of image sensor pixels per display pixel allowing for fine-detail measurement and thus simplifying the task of deploying measurements of small displays.
The shift to high resolution displays, particularly the emergence of emissive display technologies like microLEDs and microOLEDs has presented measurement challenges for manufacturers with pixels becoming smaller and more densely populated as the display resolution grows.
“Measuring the quality of emissive displays at the pixel and subpixel level has become a tougher challenge due to the size and number of pixels within one small display,” said Eric Eisenberg, optics development manager at Radiant. “For example, we’re seeing micro displays for AR/VR devices that pack thousands of pixels per inch, requiring a measurement solution that can offer high-resolution imaging of extremely small features.”
According to Eisenberg, Radiant’s new 20X Microscope Lens uses a very high-quality objective that achieves near diffraction limited spatial resolution performance to acquire more precise pixel detail and increase the consistency of accurate measurements.
According to Radiant, the 20X Microscope lens pairs with either a ProMetric Y-series Imaging Photometer for luminance-only measurement or a ProMetric I-series Imaging Colorimeter for measuring values of luminance and chromaticity.
Eisenberg added: “This solution provides manufacturers with definitive correction factors to adjust each display and evaluate all visual qualities as viewed from the AR/VR user’s perspective.”