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

[steve-o]

Late to the party .. I owned 2 maxyz modules several years ago, pbs cubed. 659-660nm , dim but powerful- will burn something across the room. Good beam profile. Probably LDs that were similar to early cd burners. 200mw iirc. <1 uS of back-reflection will kill 'em instantly. Doubt if they could be made compatible with much else other than the original design . Hope that helped .

PS- Thx DTR for the super-rapid shipping on the 405G2 today - Cheerz -

[absolom7691]

Jordan, I don't know if you have tested them and posted the results as this thread has grown quite long and I am too lazy to search. The mitsu single mode diodes, how high have you run those? Mistus seem to be tough as nails and I was wondering what kind of power can be expected from them with a little overdriving. I know they have a beautiful beam. The only reason I ask is because if the GB for the greens pans out, I am thinking of building a micro RBG using the s. mode green, the s. mode blue that you sell and one of the s. mode mitsus because I am not going to pay for an Opnext...

[DTR]

PS- Thx DTR for the super-rapid shipping on the 405G2 today - Cheerz -

I aim to please.

Jordan, I don't know if you have tested them and posted the results as this thread has grown quite long and I am too lazy to search. The mitsu single mode diodes, how high have you run those? Mistus seem to be tough as nails and I was wondering what kind of power can be expected from them with a little overdriving. I know they have a beautiful beam. The only reason I ask is because if the GB for the greens pans out, I am thinking of building a micro RBG using the s. mode green, the s. mode blue that you sell and one of the s. mode mitsus because I am not going to pay for an Opnext...

I have not really done a lot of testing on them. They don't seem to be a very high demand diode for me at least. I have about 10 left from a batch of 50 I got almost 6 months ago. It may just be my price it not competitive as some of the usual Chinese sellers have them for about $38. I got them before the prices started going down so my cost in them is pretty high as the same sellers were about $59 a diode when I got them.

Anyway from what I have seen you can get close to 200mW out of them with a G-2 running about 300-350mA but I have not done enough testing to say how they hold up at those currents.

The mitsubishi diodes have always seemed pretty tough in comparison to Optnext diodes which I found to be pretty sensitive. I lost a few of the 170mW single mode 635's and 250mW multimode 635 diodes back before these mitsu's came around trying to squeeze just a bit more than the datasheet out of them. @ $200 a pop from Avnet back then it definitely hurt and my be giving me some bias against them though.

[absolom7691]

Well, if I do buy some in the future, I will buy from you. It's only a couple bucks and I would rather see it go to someone who supports this forum. Thanks for the info, Jordan!

[DTR]

No big discoveries here but thought it was a worthy to post up. Went in with a few other members and tore down a new projector.




















It really is a big bastard.







Identified all the screws needing to be removed. There are four on the top.








Another four on the side with the control panel.








Three more on the side with the inputs.











Then the top popped right off. Right off the diode block was evident due to the massive cooling assembly.








Some close up's.














Next I slid off the side. Here is the cooling system for the diodes.








So I removed the four screws holding on the heatsink.







And now a peek at the diode block from the backside. At this time I was able to count 30 diodes.







Oh yea. See these one way screws on the back of the block. It is not a real deterrent but it is a way they could say they did something.





Getting off the one way screws was as easy as grabbing them with a pair of pliers.






Took the top off and there were 30 shinny 9mm cans.







The lenses are the large ones like in the C&$!0 projector but they look slightly different. I don't have a mounting solution to test them currently.





And here are the LED's.

[absolom7691]

Will you be selling LEDs from these? I am assuming these LEDs are red and green.

[VDX]

Will you be selling LEDs from these? I am assuming these LEDs are red and green.

... could be it's too armored only with blue LD's, but two phospor segments creating green and red on the colour wheel ... correct?

Viktor

[MIIKKKLLLL]

I like the cooling design for the blue diodes !


Did you see a phosphor wheel inside the projector?

These 2 LEDs could be used for 2 deeps of red

Also the mounting is simple, no TECs for LEDs, no temp sensor...

[andyf97]

Great Job DTR. Those those leds are indeed interesting. Are they branded?

[-bart-]

10 diodes in series ! This means low spread in specs. So better binning or they fully mastered production.

Interesting fill-pattern for the LDs. Does it have a knife-edging assemby too ?

Nice heat-pipe assemby, I imagine people will love these for their builds too!