First post, second build. (Osram PLPT9 450LB_E)

[mhostilis]

Ok. So I have decided to go with the NUBM0F.

What will I need besides the diode?

Let me know if I am missing anything:





Module + Heatsink OR Module/Heatsink like the DTR copper ones.

G8 Lens

Driver

Diver pill (not sure if this is the case for every build and host, the m140 build I had used the survivallaser c6 host bundle wich basically came with everything but had a round driver to be fitted in the round pill.....not that I see a lot of recatangular drivers around i'm not sure how to proceed with this...)

Leads (I can't seem to find any modules with leads unless they come with the diode sadly....)

Batteries

Battery board

Host




Is this basically it?

 

[RedCowboy]

Do you have a pair of laser safety glasses ?

Eagle Pair® 190-540nm OD6 Slip Over Laser Safety Goggles

Eagle Pair brand protective laser safety goggles for 190-540nm wavelength, in a 'slip over' frame style for individuals who wear corrective glasses. These goggles have exceptional visible light transmission (rated at 50%) and yet protect to a level of OD6+ (reduce the intensity of 190-540nm...

www.survivallaserusa.com

 

[mhostilis]

Do you have a pair of laser safety glasses ?

Yes, I do.

 

[RedCowboy]

Well then talk to Lifetime17 about a host/housing. Click the link then click his name and send a message.

Everything else has been explained on this site over and over, there are videos even....... you buy a diode, module, driver and wire if you don't have any and a diode press tool or use a 1/4 inch automotive socket and press the diode into the module using channel locks or a vise, solder as needed and put it in a host/housing...... go to youtube and watch some tutorials if you want to, it's very simple......if that's to much then just buy ready made....... that's about as much hand holding as you will get, to go anywhere in this hobby you have to be a self starter with a can-do attitude and safely git-R-done..........mostly remember the safety part, never point a laser at anyone or any vehicles, windows....... don't annoy or distract anyone and don't create a dangerous situation or allow a mistake to happen.

https://www.youtube.com/results?search_query=laser+build

 

[mhostilis]

Everything else has been explained on this site over and over, there are videos even....... you buy a diode, module, driver and wire if you don't have any and a diode press tool or use a 1/4 inch automotive socket and press the diode into the module using channel locks or a vise, solder as needed and put it in a host/housing...... go to youtube and watch some tutorials if you want to, it's very simple......if that's to much then just buy ready made....... that's about as much hand holding as you will get, to go anywhere in this hobby you have to be a self starter with a can-do attitude and safely git-R-done..........mostly remember the safety part, never point a laser at anyone or any vehicles, windows....... don't annoy or distract anyone and don't create a dangerous situation or allow a mistake to happen.

Will do.

Thought I already asked this but what is the current at which the NUBM0f runs at normally without being considered overdriven, and by how much are lifespan and duty cycle reduced by overdriving by say 1 amp, 2 amp etc.?

 

[RedCowboy]

Nobody really knows how much the 20,000 hour MTTF is reduced by overdriving, maybe a lasershow projector builder/operator could tell you their findings about the previous generation diodes, that said normal operating current is 3.5A according to the datasheet that I have seen.

That said for quasi continuous use in a good heat sink I drive mine @ 5A, for short burst work you could push to 5.5A, now if I were going to use this diode in a projector with active cooling, then I would likely drive it @ 4.5A and see how long they last, which I expect would be thousands of hours because waste heat build up is the real enemy.

 

[Amak87]

Yes this Osram PLPT9-450LB_E is a BEAST! I’ve purchased and installed over 15 of these bad boys and they easily hit 8W with a G2 lens at around 5.3Amps.

Plus they have a slightly higher operating temperature range, 0-80*C VS Nichias 455nm diodes at 0-70*C.

With a 22mm Convoy 6V/5A boost driver, running around 4.8Amps, I get over 7.5W with a G2 lens and large aluminum heatsink, ambient temps at 70*F, with heatsink temps at 72*F, this diode outperforms the NUBM47-A1 for sure. Same setup, same driver and the Osram has always given me atleast 500mW more output.

And to the naked eye, the beam color is much more vibrant IMO

 

[Amak87]

Nobody really knows how much the 20,000 hour MTTF is reduced by overdriving, maybe a lasershow projector builder/operator could tell you their findings about the previous generation diodes, that said normal operating current is 3.5A according to the datasheet that I have seen.

That said for quasi continuous use in a good heat sink I drive mine @ 5A, for short burst work you could push to 5.5A, now if I were going to use this diode in a projector with active cooling, then I would likely drive it @ 4.5A and see how long they last, which I expect would be thousands of hours because waste heat build up is the real enemy.

Another detail to take into consideration is the testing parameters that Osram and Nichia use when testing and producing their data sheets.

They stress test these diodes at 70*C!!! Yes it’s controlled via ACC, so I’m sure the diode doesn’t see even 3Amps most of the time at that temperature, but even at those temperatures, they still see lifetimes above 1000hours. Which is impressive when you consider it’s a $30-$50 diode, if you used your laser pointer ever day, for 30minutes a day, which is highly unlikely, that’s only 182hours a year… considering that most of us running these high powered lasers pushing higher amps and don’t overheat them, Even if we got 500 hours, that’s still impressive enough for a handheld laser pointer.