Lens Angle-Does anybody understand this term
Hi
I was looking at optic lenses for a cree type LED. Can anybody tell me what this means
Lens Angle: 4-90 Degree
Does this mean this lens have a 43 degree (=90-4/2) dispersion off the center axis?
Thanks
Last edited by fencer; 05-06-2011 at 02:24 PM.
|