I did few weeks of researches and experiments with LEDs to :
-improve the brightness
-reduce the costs
-re-use as much as possible materials
-make it easy to integrate inside a projector
You could find a video recap of my experiments to this link : https://youtu.be/BQB0Jq_XlkA
Any ideas on how to improve it more ? Fix issues ? Feedbacks welcome, I’m not engineer at all 🙂