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Polarisation machine vision camera

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Pixelink, a Navitar Company, has released their new polarization machine vision camera built around the Sony IMX250MZR Pregius global shutter CMOS sensor.

The 5.1 megapixel camera takes advantage of on-chip polarizing filters enabling greater fault detection on reflective surfaces such as metal, plastic and glass, previously undiscernible with standard sensors.

Pixelink’s PL-D755MU-POL polarization camera is a 2/3” format monochrome model with 3.45 micron pixel resolution. Based on the Sony IMX250MZR Pregius global shutter sensor, with pixel-level quad polarization filter feature, the camera is designed so that each individual pixel has its own polarizing array angled at either 90°, 45°, 135° or 0°. This cluster of 4 pixels are arranged in repeating 2 x 2 pixel blocks and the 4 pixel block allows for on camera calculation of both the direction and degree of polarization.

“The polarizing array is positioned on-chip, not on-glass, which produces a more accurate signal and a more detailed image,” comments Lisanne Glavin, General Manager of Pixelink. “The camera adapts to changing light conditions, filters unwanted reflections and glare, and suppresses flaring and ghosting.”

All Pixelink polarization camera models include Pixelink Capture imaging software, which provides the ability to simultaneously view four images, each image showing one of the four polarization angles. “The quad-view feature, allowing direct comparison and analysis of all four polarization angles at once, sets our camera apart from other models available in the marketplace,” adds Glavin.

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