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IR LED machine vision light application
Author:                Add Time:2014-12-31

There are two kinds of wavelength of IR light in the machine vision application, they are 850nm and 940nm, and when you turn on the 850nm LED light, you will see some red color inside, but when you turn on the 940nm LED light, you can't see any color by your eyes. IR light have the penetrate ability, specially the very longer IR light has the ability to penetrate some kinds of organic material, so this function is used to penetrate some plastic material package to inspect the inside object, this is good way to reduce the affection 

            original picture                               image result of IR LED machine vision light

IR light can filter the color of textile

IR light can penetrate the plastic material

IR light can penetrate human skin and watch vessel and IR light can reflect human eyes