If there could be a GB for Acylindrical lenses, we might only need one pair to correct a knife-edged beam horizontally composed from more than 2 individual beams.
When I tried with Cylindrical lenses the outer beams pair (1,4) focused closer than the inner pair (2,3) due to aberration.
Can you show a picture of the spot at 1 and 5m on the wall (one row at 1A would be enough) like I did it here with a NUBM08 block?
And what is under the multilens? Can it be lifted or is glued to the body to protect emitters from air?
Are beams parallel? Can this thing be of use to construct something decent or only a close range burner like light engines from A/M 130?
What kind of PJ was this? Does the ebay price of 480usd look right?
BTW the specs for 31T say 3.5A max current - same as it was for NUBM07.
1.8A is how I was driving the M140 (4.5A from bench supply into 3 parallel series of 8 LDs in the KE-light engine, so each row would have...
What was the last pic. supposed to be, it is too small too see at 6.2 kB.
Axicons and prisms may be fine for someone who has all mounts for them ready, but I keep with cylindricals because mounts and parts I have at home are for cylindricals. Even if a pair cost 55usd from LSP.
Maybe it will be interesting for you if not known before: I found that my 2'' PCX lenses from Thor fit well in place of the maglite bezel window.
So I made a HS for 5 12mm modules (more would not fit in) and tried to drive 5 Sharp 405nm with drivers. Unfortunately 4 alkaline...
Good are combiners you have on that picture! I hope these all are NUBM44s?
You were right, the heat gun at 150ºC made the mirrors debond and fall pretty fast. They are a little thicker than I tought, dimensions are 25x5x1.1mm but maybe still fine for another crazy project what I expected to do...
Hundreds? What do you do with them?
To my opinion they do not look like HR mirors, rather like coated Al film - so maximum 85-90% of reflectivity to expect for all WL range. Right?
But they are very thin and lean and could fit into a very small setup.
Thank you, logsquared.
Have you tried this before?
At start I was afraid to do this because the coefficient of thermal expansion for glass and Al might be different and then all mirrors could crack at once.
Could anyone of you teach me how to scratch the small 1mm thick FS mirrors from the Knife edge part of A-130 light engine? They look like Al coated mirrors.
I kept the mount 1 week in each water, acetone, ethanol and toluene, warmed up in boiling water but they did not debond from the...
This build will not be fast, could easily take a year to accomplish.
There could be a cheap and dirty way if all LDs in a block would be installed exactly parallel. In real life they are not - so one adjustable mirror pro beam is the most logical way to fix this issue. You could also fix the...
This thread as another continuation of that one called "Gatling laser":
but here my next project will be to correct 7 collimated beams from an intact NUBM44 block with closed...
How is this 2nd GB doing? Still asleep?
I would like to have 10 more of these perfect pairs - it is better to have a stock for future projects instead of chaotically looking around when it is finally needed.
What is the manufacturer's meaning of the minimum order - is it 50 pairs...
I wonder what could be the temperature inside of the cube. What I can mesure by IR thermometer is on the surface.
When PBS suppliers say about damage threshold what do you think they mean: damage of the beamsplitting layer inside, glass material itself (from unequal heat distribution...