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Old 06-09-2010, 06:35 AM #1
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Default Is there an "average current" yet?

There isn't an average current for these 445nm diodes yet is there? for example a 6x is about 195ma, a LCC is around 420mA... etc...

And now have I seen that changing the voltage can significantly change the mW of the laser?


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Old 06-09-2010, 06:56 AM #2
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Default Re: Is there an "average current" yet?

It's too early for this.

They were running ~700mW in the projector

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Old 06-09-2010, 07:31 AM #3
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Default Re: Is there an "average current" yet?

Wow I didn't realize that! No wonder there is such a massive finned heatsink in there!

I wonder what current it drove them at? And if it was pulsed? Probably pulsed huh?

I'm going to leave mine at 640mA's for now... And my smaller build will be about 400mA's.

I tell you what, they are so bright, you don't need the super high power... (IMO)
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Old 06-09-2010, 07:45 AM #4
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Default Re: Is there an "average current" yet?

Quote:
Originally Posted by jayrob View Post
Wow I didn't realize that! No wonder there is such a massive finned heatsink in there!
I wonder what current it drove them at? And if it was pulsed? Probably pulsed huh?
I'm going to leave mine at 640mA's for now... And my smaller build will be about 400mA's.
I tell you what, they are so bright, you don't need the super high power... (IMO)
They were pulsed at two different settings (50% and 66%)

I don't know if anyone has determined the current they were run at yet.

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Old 06-09-2010, 07:52 AM #5
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Default Re: Is there an "average current" yet?

I´m interested how good IgorT´s v3 heatsink-modules are able to cool down so much power. Anyone heard of him according the 445nm diodes?
Is it possible to make an 445nm in Laserglow´s Herc host with the whole cooling system?

Sorry for the short off-topic
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Old 06-09-2010, 07:53 AM #6
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Default Re: Is there an "average current" yet?

Quote:
Originally Posted by daguin View Post
They were pulsed at two different settings (50% and 66%)

I don't know if anyone has determined the current they were run at yet.

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I think mariomaster did, not sure though. Wait until he replies.
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Old 06-09-2010, 02:29 PM #7
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Default Re: Is there an "average current" yet?

I don't think we can use the stock current as a base just because they were pulsed. We run them at CW and the diode can act very differently (I'm not saying that this has to be true of course). Just something to have in mind. I've read that they will work for at least 12h at 1W so far.
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Old 06-09-2010, 02:33 PM #8
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Default Re: Is there an "average current" yet?

Did the diode die after 12h @ 1W or is it still running?
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Old 06-09-2010, 02:44 PM #9
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Default Re: Is there an "average current" yet?

Quote:
Originally Posted by pHeneX View Post
Did the diode die after 12h @ 1W or is it still running?
I believe it is still alive.
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Old 06-09-2010, 04:05 PM #10
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Default Re: Is there an "average current" yet?

I believe he's using TEC though...
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Old 06-09-2010, 04:10 PM #11
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Default Re: Is there an "average current" yet?

That only means that the limit is our hosts and drivers, not the diode! Pretty amazing.
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Old 06-09-2010, 06:31 PM #12
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Default Re: Is there an "average current" yet?

I haven't even read of anybody pushing these to death yet. You basically have to fry one and then work your way down from there.

I originally had my 445nm labby set at 625mA, but after reading posts of people pushing theirs way higher I bumped up the current to 833mA. Now this seems like I'm not getting the full potential out of it. The sad part about my whole labby ordeal is that I don't even have a 445nm in my hands yet.
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Old 06-09-2010, 07:46 PM #13
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Default Re: Is there an "average current" yet?

I have a silly doubt.
Would the diode work with this kind of driver and a 18650 ?
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Old 06-09-2010, 08:01 PM #14
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Default Re: Is there an "average current" yet?

Might be worth an experiment but I doubt that driver will put out the 4+ volts that the 445 diode will be asking for...
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* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

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Old 06-09-2010, 08:06 PM #15
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Default Re: Is there an "average current" yet?

Quote:
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I have a silly doubt.
Would the diode work with this kind of driver and a 18650 ?
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Old 06-09-2010, 08:32 PM #16
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Default Re: Is there an "average current" yet?

Well, I can't spend much money on lasers, so I'm trying to figure out how to make the cheapest 445nm build possible.
That's why I'm looking for cheap drivers.

Edit: What also made me curious was this post:
http://laserpointerforums.com/f65/44...tml#post712512

Take a look at the box-style laser =)
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