nubm42 talk and founds

today i found some time to test out the new nubm42 diode i received and i have to say i found some interesting results. there will be not a lot of photos but i'll share the differences i found out compared to other diodes.

nubm42 is very identical to the nubm08 and the power test is almost the same, i manage to push it up to 7.1w by cooling down the diode and wavelength is definitely around 455nm as nubm08.not serious changes here.

now the interesting changes i found,1st thing i noticed was how bad the focus out of gball was,nice flashlight i have to say :mad: the spot at 5 meters was 40x11cm i know crazy.



it could be this curtain diode but if most of them have this shape that means that the manufacturer made this to prevent us to use it as a laser.

they made a noticeable change on the gball lens compared the nubm08 gball and used a longer focal length lens(or same focal length lens and longer barrel to make it more out of focus flashlight :tsk:)

nubm08 vs nubm42 barrel


i tried to focus the awful focus of the gball lens but not worked so you all remember the thread i made about the gball lens refocusing : https://laserpointerforums.com/f51/h...al-103025.html

so i tried this method to see if it is still usable with a diode so much out of focus and found something interesting,the method worked great used a G2 to expand and 3 element to refocus and amazed with the results! i got half divergence compared to my nubm08 build with exactly the same focus method :wtf: this could mean 2 things either the diode emitter is different compared to the nubm08 or the gball used on this diode has something different.
i can find out only if i deccan the diode but i don't want to kill it.

if anyone has a nubm42 diode please let me know the output size,i want to confirm if the manufacturer made this out of focus on purpose.also i wish to see if this is actually a diode on nubm08 power range and characteristics with better divergence but we will only found this by deccaning one.

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