Request: LED optics discussion
I've seen numerous posts and statements on led optics and was wondering if we've enough collective experience now to have a specific discussion on them and lay out some data for those just getting into the discussion.
There are many different angles and styles available with quite a bit of ambiguity for those who haven't had direct experience with optics.
I am in the design stages of building a dimmable LED array for a 12" wide, 12" deep tank and am, for now, planning on using a single row of XML's if I can.
I've been researching optics and am seeing different values listed, i.e. field vs beam when discussing angles. I've also read that many time there are hotspots in the projected pattern, also I thought it was mentioned that some MFR's list half angles instead of the full projected angle for their optics.
I, personally, would like to see different beam patterns for different optics. It would be helpful to see if there are hotspots and light spill beyond the listed field.
I've been known to get lost in the details, so I apologize if this is redundant, I just know that this kind of information could be useful to me at this stage. I'm sure a lot of this has probably been mentioned here or there in Hoppy's builds, but I was hoping to break it down a bit.
Regardless, thanks for your time and for posting what you all already have.