Triangles  
a pattern generator
 
Copyright (c) 2002 Peter Howard
These animations were created in Macromedia Flash, converted to mp4 in 2020

Surprisingly-beautiful patterns of beams of light, from configurable no of LEDs and configurable beamwidth.

Flash version: interactive, press a button to get a new pattern

mp4 version: example patterns are displayed

Play Flash
Play mp4