I am looking to focus:
(3W PROLIGHT HIGH POWER RGB FULL COLOR LED 120 LM
Viewing Angle:120 degree, the led is self (not the board its attached to) is Id r2.95mm, OD r4mm)
Into a 0.25in beam from 12ft away.
With as few lenses as possible and cost ratio.
A bit of loss is to be expected but no more that 15% power can be lost. 20% would be absolutely pushing it.
the closest thing i could find was http://w
and this one:
This one has the size i need of 6mm but would need a second lens to stop the beam from diverging.