The ribs in the drawing are ribs. They have dimensions in two directions for each one. But, maybe they did decide those weren’t needed, so left them out. I guess we’ll find out!
somewhere in the thread all the calculations to get to this size can be found.
Basically this is an upscaled TN42 reflector.
Our top ID vs depth is 0.5% off if a TN42 reflector would have been upscaled, of course ours is better for so much thinking, research and calculating went into it
it was very cool however to see that with all the work it took to get to these sizes it was so close to the TN42, our starting point was the top ID and it went from there.
I just looked at the OP again, and the conceptual render shows the reflector as 120mm wide x 100mm deep. So, I guess I just forgot that decision was made. Oh well, carry on!
Yeah, that would be more ideal, I think. But it is what it is. The shallower reflector will allow more of the light from the emitter to escape as spill. But, according to all the experts around here, it won’t effect throw, because that only depends on reflector width. They say that the “extra” light from a deeper reflector goes into making the spot wider, but not brighter.
Ah, I thought the ratios were closer.
well the goal was a 120mm wide reflector
Would it be deeper, more costs for reflector, even bigger head, more weight, higher shipping
So think this is pretty nice
Making it deeper would only increase throw very little, because the center circle (that flat-ish part around the LED) would become smaller which would add only a little front area of useful reflector.
It would result in less spill and a bigger “corona” around the hotspot.
With this design, 60 degrees of light from all sides are being collected, which leaves a 60 degree cone of spill.
People wanted this flashlight to be useful for regular use too, not just super long range, which is why it is a reflector with some spill and not an aspheric thrower.
This is approx 75% of light collected for throw, with 25% of light used for spill.
Several thousand posts near the beginning of this topic were spent calculating all of this.