How to quantify beam shape? And discussions on many related topics: optics - TIR & reflector, thrower vs flooder, throw calculation, beam angle, cd/lm parameter, etc., etc. Did I miss anything? :-)

[mcjtom]

The Map of Flashlights - put your light on the Map!

[image] I’m still testing it. Please enter your flashlights using the link below. You need to refresh the page to see new entry. Comments appreciated.