Can light be filtered using red fabric?
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Feb22-12, 06:46 PM
... and the reason to select IR instead of other spectrum on this receiver sensors device.
Thanks everyone very much for any suggestions
Infrared light is used for various purposes, including remote controls, night vision, and to observe different things in space that are either blocked in the visible range or don't emit in the visible range. Do you know what the EM spectrum is?