DTR's Laser Shop: Diodes-Drivers-Lenses-LEDs & More

[DTR]

Got this new projector in today and did a tear down on it.











So here is the block. It is one of the new style blocks from Nichia but it has diodes with regular cans not the stupid lens can that is set for a flashlight output.



Got in there and there were only 7 diodes in them. I am guessing they are like the ones in the other arrays with just a different can which means slightly more powerful than the NDB7A75 and a little higher wavelength.







Quick power test @ 4.5A with a G-2 lens. Maxes out my LPM which can not read over 6.8W so not sure how much more it is doing.







So the price makes them a bit more expensive as you are getting less diodes for more than the blocks we can get direct now but they have a traditional can on them which helps protect the diode. Still need to have one sent out to get wavelength tested but interesting to see these being incorporated into projectors.

[DTR]

NUBM44 6W+ 445nm Laser Diode
Title subject to change when confirmation of max output is determined


So here is the new bad boy on the block. My meeter does not read past 6.8W but this diode is clearly doing well over 7W but I will call it 6W till someone can show some testing further than I can with my meeter. In this video I show how my meeter is maxing out. @ 4.5A it does 6.8W and I ran it for about two minutes @ 5.5A with the meeter pegged at max the whole time never a drop in reading so there is a very good chance it is doing much more than that.



















































So there you have it more data to come along with some wavelength testing.

[catalanjo]

Hi people ,

Jordan, I just noticed your excellent "Brilens" tear down pics from a few weeks ago!

The "heatpipes" and "dissipators" that cool the led modules look really interesting.

Any comments on these ....planters ?

Have any of you explored/tested these at all ?

They look spot on, for simple MM setup cooling!

I have recently resolved my Ppal problems, .... in order to get some hefty REDs from your site ,
....so if you still have these unusual bits of kit (intact), I might be interested in purchasing them ....
.....despite being in Europe!


PM coming thru .....

Cheers

[planters]

Wow! This is something that will absolutely derail my work on my planet destroyer; a cute little nickname we have around here for the new dye laser.

I have a meter that can read to 150W, a spectrograph, TEC plates, liquid nitrogen, hundreds of lenses and many prisms.

Jordan, please PM me and let me know how much you want and I will put one or two through the paces.

[norty303]

Good grief, thats not just progress, thats a significant step change! >7W from a single diode!
To think we've just put together a 12W blue using 6 M462 and all the resulting optics and mechanics...

[planters]

catalango,

The heat pipes and the associated modules could be useful if there was a space restriction. For the higher power diodes and especially for these, the best solution will usually be short paths through wide plates or blocks of aluminum or copper to the heat removal system. The heat pipe usually has better thermal conductivity than even solid copper and so if you want to route the heat to where a big fan can be accommodated then these may be useful.

You can buy generic heat pipe/finned radiator combos directly and this may give you more flexibility allowing the heat pipe to fit your projector rather than designing the projector to fit this particular system. On the other hand this is already surplus.

I really love the closed circuit, sealed, liquid, CPU cooling systems from companies like Corsair. They are amazingly effective, low cost and don't leak.

[planters]

Good grief, thats not just progress, thats a significant step change! >7W from a single diode!

I have a 12 A, Wavelength Electronics driver. Put 4 of these on a huge (500W) two stage TEC, drive them with two in parallel and 2 in series, 1/2 wave rotate one pair,stack them (don't knife edge), PBS and then cylindrical lens expand to fill the available scanner and you have a Laserscope on a mouse pad (but with far better beam characteristics).

But, then that's too much power. Nobody needs that much power. That's just silly.

[catalanjo]

catalango,
The heat pipes .....I really love the closed circuit, sealed, liquid, CPU cooling systems from companies like Corsair. They are amazingly effective, low cost and don't leak.

Thanks Mr.P

Corsair hydro-series-h55-quiet-cpu-cooler was roughly what I was looking for.

Would prefer longer pipes but don't know where to look

This big blue fella is great but we need to keep it cool (and quiet! )

Cheers

[catalanjo]

................Put 4 of these on a huge (500W) two stage TEC............

Hi... another quick question

Where on earth do you get these from ?

Cheers

[planters]

I had them custom made and actually bought them through Alibaba (and the 40 thieves). An alternative is 4 smaller and probably more efficient two stage units from Customthermoelectric:

http://www.customthermoelectric.com/...Q_spec_sht.pdf