>If I block the emitter with my hand the remote has no trouble turning the TV on and off. Even if I've blocked it with my hand and am holding the remote behind the couch so there is no line of sight to the TV it still works.
Near-infrared light is biologically important, which is why we know it will go through your hand and most fabrics. I used to dose myself with near-infrared light by sitting in the sun wrapped in a polyester blanket to filter out the UV light.
Near-infrared light is biologically important, which is why we know it will go through your hand and most fabrics. I used to dose myself with near-infrared light by sitting in the sun wrapped in a polyester blanket to filter out the UV light.