Light lost in aspheric lens flashlight

[EasyB]

@Rufusbduck

I thought it was interesting how Ervin used a small aspheric situated at its focal point within a large reflector to both capture and focus virtually all emitted light. It seemed pretty effective.

Ervin's try (2nd. Annual BLF Scratch Made Light Contest) update 6/23/2014 finally beam shots of my new thrower

Hi all, ——————————————————————————————————————————————— Update 30/06/2014 the last update is here Ervin's try (2nd. Annual BLF Scratch Made Light Contest) update 6/23/2014 finally beam shots of my new thrower because this page can not take anymore of me ——————————————————————————————————————————————- Update 27/06/2014 I am making a small update at current progres. Have made considerable progress but don’t have time to post, but since i have not much time i am posting t…

That is a neat idea and impressive execution.