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Key features of a quality machine vision optical filter - Machine Vision Technology Forum 2019 (en)

Presentation at the Machine Vision Technology Forum 8-9 October 2019 in Unterschleissheim (Germany) Speaker: Georgy Das, Midwest Optical Systems Inc.

Optical filters are critical components of machine vision systems. They’re used to maximize contrast, improve color, enhance subject recognition and control the light that’s reflected from the object being inspected. Learn more about the different filter types, what applications they’re best used for and the most important design features to look for in each. Not all machine vision filters are the same.

Learn how to reduce the effects of angular short-shifting. Discover the benefits of filters that emulate the bell-shaped spectral output curve of the LED illumination being used. And find out more about the importance of a high-quality inspection process that limits the possibility for imperfections and enhances system performance.

Plus, learn more about the latest advances in machine vision filters. SWIR (short-wave infrared) filters are designed to enhance the image quality of InGaAs camera technology and are useful for applications imaging from 900-2300nm. Wire-grid polarizers are effective in both visible and infrared ranging from 400-2000nm and have an operating temperature of 100 C per 1,000 hours.