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Band Pass Filters


Why use a band pass filter in a machine vision application?


A band pass filter can be helpful in reducing the effects of ambient lighting. Ai offers two types of red filters for this purpose, 660nm and 635nm, which the peak response of our standard red LED lights and our red high brightness lights, respectively. Using these lights and filters together can reduce the effects of overhead fluorescent lighting by up to 35X and often negate the need for a shroud.