I rewatched the spatial filtering video and I get this now. Thanks. Although I haven't seen a commercial projector use this technique, so my guess is the stacked beams aren't so big to not fit and maybe they don't care about the beam profiel so much. Sure, Arctos uses singlemode reds and telescopics, but I dont see anything done on the multimode blues and greens besides prisms. Same with the inside pics of Eightonlight projectors. But I will keep this in mind in case I have a situation with too big of a beam or need a cleaner beam than I get.You can modify the beam to whatever size you want by adjusting the spatial filter telescope ratio. The price you pay is divergence.
I'm still not sure if I understand correctly, you mean to overdrive 500mW mitsus to 2W each?
I do get that concept.
And in that video you have one diode and make a vertical line (in the near field) more cubical, so you expand in the horizontal, sure. But there's one diode in the video.
My confusion comes from this: with knife edging the beams seem to be stacked horizontal from what I see.
The mounts are on the same height and mirrors are offsetted in a horizontal axis. When looking from the top, the beams seem side-by-side, not on top of each other.
If I put the beams on top of each other, wouldn't that mean I have to have a different height for each mount/beam and also mirror?
Please explain if I understand these images wrong or if vertical stacking is a better idea.
Before I was sure both of you thought of doing it like in the pics, Im sorry for the confusion and please bear with me.