IR light ionizes the air, so in this smal beam is created more "hot" and ionized air. Light acts as an antenna. Imagine this active antenna. IR is very good for electronic LRL, and don't know why more people don' work in this field. The IR light must be modulated. For more precission, no a fixi light in wich you introduce the modulation. You must be modulated open a clossed the beam at the desirable frequency, best two IR leds. This is a King.
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