Hi IRstuff, They have but.... They're usually not outdoors, they don't use retroreflective (they use LEDS fired directly at sensors) and don't need a narrow angle (accuracy). I thought about an VCSEL device, but as the signal is coming back to the person firing the gun, that might be a no no.
I need some help from an optical guru – I have designed a game using a gun. The gun uses an IR diode (SFH4545) no lens, to fire a 600uS burst of 38KHz IR across a field to a retroreflective (corner cube) target. The returning IR is detected by the second barrel of the gun using a lens, focussed...
