Article has a lot of fluff and ads. Tldr; synchronize flipping the street light on and off, and opening and closing a shutter in the telescope. So only works

Article has a lot of fluff and ads. Tldr; synchronize flipping the street light on and off, and opening and closing a shutter in the telescope. So only works for astrophotography, will increase exposure times, not likely to catch on since it only works for astrophotography. Unless entire cities, including parking lots, adopt them, it will only help with direct stray light, which isn't that much help.