It is Here.!!!!! 300mW "635nm" Mitsubishi.....

• Sep 24, 2011

• #529

Cyparagon

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The one I tested had no spike at all. Those might be the best drivers for the job. I'll test the minimum dropout and report back...

edit: they need 3.6V to get ~700mA, 3.7V to get to ~800mA, and 3.8V or more outputs ~900mA

By the way, I did some more prism tests here

 

Last edited: Sep 24, 2011

• Sep 25, 2011

• #530

DTR

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Blord said:

The driver must be connected to a powersource of 3.7V like a 18650 battery.

Click to expand...

What current does it give @ 4.2V and 3.4V?

 

Last edited: Sep 25, 2011

• Sep 25, 2011

• #531

Blord

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I did one test. A freshly charged 18650 measured at 4.14V with the DX driver (SS34) gives a whopping 1140mA current at the diode side. No problem for the laser diode, it was cooled by the huge CPU cooler.
But at this current it will tricky to build the laser in a C6 host. The Aurora C6 445nm overheat fast at 1.2W.

Another test with an used 18650 battery, 3.9V gives 700mA at the diode.
These DX drivers are very voltage dependant to deliver the current. I don't know if they are reliable in the long run.

 

Last edited: Sep 25, 2011

• Sep 25, 2011

• #532

jayrob

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Just finished my second one...

This time in a Stainless Steel RL-118 host, and set at 800mA's.

It's 550mW's. (650-G-1)

So I guess I didn't get one of those freak efficiency diodes, but it's all good... :beer:

Little side note, the battery current draw on both of my builds, is very close to the output power (both builds using V5 FlexDrive, and 650-G-1 lens)

I know there is no real correlation there, but it's just kind of a cool coincidence...

* 1st build - 450mA / 315mW - battery current draw is 300mA's with full charged 10440

* 2nd build - 800mA's / 550mW - battery current draw is 550mA's with a full charged AW RCR123 protected cell

I know for sure it is set at 800mA's, because I double checked before I connected the diode. Just shows how nice the V5 FlexDrive bucks!

 

Last edited: Sep 25, 2011

• Sep 25, 2011

• #533

Fiddy

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nice work! did you have fun playing with the super beam at night?

 

• Sep 25, 2011

• #534

blrock

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THUMBS UP TO ALL!

Great work guys. It's so exciting you reach these power levels for a red!

 

• Sep 25, 2011

• #535

jayrob

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Fiddy said:

nice work! did you have fun playing with the super beam at night?

Click to expand...

Oh yeah!

Love the orange(ish) beam of these bad boys...

 

• Sep 25, 2011

• #536

ped

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Well ive ordered the 650g1 lens from Jayrob, to squeeze every milliwatt out of one of these suckers. Be rude not too really :lasergun:

 

• Sep 25, 2011

• #537

LaZeRz

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Damn,

 

• Sep 25, 2011

• #538

regalis

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Damn,

..i know how you feel

 

Last edited: Sep 25, 2011

• Sep 25, 2011

• #539

Eudaimonium

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I finally got my sh... I mean, handheld, together:

Ahh, $70 never looked so good:

So this is a beam profile:

Not sure what the litle distorsion on the right is, I do not see anything on the diode at all.

That's that, host is from Rayfoss, that new one. Keep your eyes open for a new heatsink for it

 

• Sep 25, 2011

• #540

ped

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Eud..

I have a couple f those hosts and that what i want my 635 in, how did you mount the driver and switch assembley?

Cheers

 

• Sep 25, 2011

• #541

Eudaimonium

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ped said:

Eud..

I have a couple f those hosts and that what i want my 635 in, how did you mount the driver and switch assembley?

Cheers

Click to expand...

I've submitted a new thread in Pro Store section, as soon as a moderator approves it, you will see it. I am selling heatsinks for the host, and in the thread I've provided assembly instructions for it.

 

• Sep 25, 2011

• #542

ped

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Superb!

 

• Sep 25, 2011

• #543

piferal

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Eudaimonium said:

So this is a beam profile:

Not sure what the litle distorsion on the right is, I do not see anything on the diode at all.

Click to expand...

Two of the possible causes may be:

A small imperfection in one part of the reflective substrate of the laser diode chip.

Or, less likely it's a flaw in the laser diode window and this is not seen with the naked eye.

Maybe, maybe not.

 

• Sep 26, 2011

• #544

ped

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So are we saying 800mA is a safe current for these babys?