How light strike works

laserlightsensor

I am new here and I don't know if I have chosen right stackexchange but anyway.

I am making a little toy, just for educational purpose. I would like to understand how light strike works. It is a gun which lights some light, sensor somehow detects it and count the points.

I am wondering because it works even in day light.

It is similar to Laser Tag, which I understand, because you must be in dark place and you "shoot" laser beams. But how come that Light Strike doesn't shoot direct light. Is it some radio wave?

Even if you can't answer the question, don't you have any advice how to shoot something what can be received by some sensor?

Best Answer

It is similar to Laser Tag, which I understand, because you must be in dark place and you "shoot" laser beams. But how come that Light Strike doesn't shoot direct light. Is it some radio wave?

James Clerk Maxwell in the 1800s basically proved that light and radio waves are exactly the same thing. Just thought I'd get that out of the way first.

More than likely it uses a low power infra red (invisible) laser and the laser will be modulated with a signal that makes it instantly recognizable from changes in ambient lighting conditions.

Using a laser ensures a tight beam is "fired" at the target.

The sensor(s) will be an IR detector (likely) with an amplifier and decoder (for the modulation) and upon decoding the signal it will advance points on some scoreboard or other.