Infrared LED Flashlight
I have an LED flashlight question about IR Filters?
If LED flashlights do not emit any infrared light unlike the fluorescent flashlights, how can an IR Filter cancel out the non-infrared portion of the light spectrum on an LED flashlight if there isn't any infrared light?
Think of the filter as a series of doors. All of them are closed, except for the one corresponding to the freq. of interest.
Example
Closed-closed-closed-open-open-closed
If the LED has nor IR components, all doors are closed to begin with.
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Gadget - Infrared flashlight (28 led)
