Polarisation camera

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Pixelink, a Navitar Company, announced plans to release a new machine vision camera incorporating the Sony IMX250MZR polarization image sensor. The 5.1 megapixel camera will offer broader visual detection and characterization capabilities of material properties as well as improved performance over conventional monochrome sensors.

Pixelink’s polarization camera model features a 2/3” optical format, 3.45 micron pixel resolution and Sony’s innovative pixel-level quad polarization filter feature. Four polarizer positions, one per pixel, are angled at 0°, 45°, 90° and 135° enabling greater detection of both the amount and angles of polarized light across an image. By filtering unwanted reflections and reducing glare, imaging previously undetectable defects, such as scratches, stress on materials and transparent objects, is now possible.

Lisanne Glavin, General Manager of Pixelink, comments, “We continue to expand our product offerings to meet the needs of our customers. With Sony’s polarization sensing technology, this camera will enhance our customers inspection capabilities for an increasing number of applications.”

The lab-based prototype lidar system that the research team built captures megapixel-resolution depth maps using a commercial digital camera. (Image credit: Andrew Brodhead)

31 March 2022

Four imaging examples, two indoor (left) and two outdoor (right). These examples primarily explore the polarised nature of specular (Fresnel reflection), in which unpolarised light is partially polarised perpendicular to the plane of incidence upon reflection. Credit: Capasso Lab/Harvard SEAS

23 March 2022