thanks for your help I order the flat IR leds and flattened the normal leds out and they work 10x better but still getting the IR leds. here is my design I made for freetrack
buccaneer @ 02/07/2010 - 07h46 a dit:
IMHO You might need to flatten LEDs' tip, because spherical shape makes emitted light rather narrow focused. On "extreme" angles light intensity is significantly decreased.