Old 12-17-2010, 07:13 PM #1
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Default nice 2W 445 video I found

Found nice video of 2W 445 laser

Enjoy & have an excellent weekend

YouTube - 2W 445nm Blue Laser versus 11 CD cases


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Old 12-17-2010, 07:37 PM #2
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Default Re: nice 2W 445 video I found

Already posted here http://laserpointerforums.com/f48/vi...tom-58444.html
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Old 12-19-2010, 01:39 AM #3
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Default Re: nice 2W 445 video I found

Where would one get a 2W 445 diode?
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Old 12-19-2010, 01:44 AM #4
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Default Re: nice 2W 445 video I found

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Originally Posted by Limecat View Post
Where would one get a 2W 445 diode?
It's just a regular 1W rated 445nm diode, overdriven.
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Old 12-19-2010, 01:59 AM #5
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Default Re: nice 2W 445 video I found

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It's just a regular 1W rated 445nm diode, overdriven.
Ah, I see. how many amps? Because mine probably died before it hit 2A, which is not exactly 2W yet.

But since you're here, how high can you drive the 445s? is 1.5 A still safe?
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Old 12-19-2010, 02:02 AM #6
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Default Re: nice 2W 445 video I found

It's odd, people have gotten differing results, 1.5A is kind of high but not impossible I don't think.
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Old 12-19-2010, 02:07 AM #7
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Default Re: nice 2W 445 video I found

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It's odd, people have gotten differing results, 1.5A is kind of high but not impossible I don't think.
Ah okay. My initial plan was to drive the diode at 1.5A max, but after I killed my diode by accident, I'm not sure its such a good current to be driving it at lol. I don't have laser wattage measuring equipment but, basically I just wanted to drive it enough to exceed 1W instead of just hanging just under 1W.

Sorry, I think I hijacked the thread. maybeI should start one.
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Old 12-19-2010, 03:10 AM #8
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Default Re: nice 2W 445 video I found

A few people have been using 2 flexdrive V5's driven at 900a each with a g1-405 lens to get 2W(like the one I just bought)

The problem with running a flex at 1.5a is not that the diode gets hot...but the Flexdrive gets to hot, and usually users do not heatsink the driver.

A flexdrive v5 driven at 1.5a should have a very short duty cycle.

Plus you may not want to use a A-130 if your going to try and get to that intensity.
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Old 12-19-2010, 07:31 AM #9
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Default Re: nice 2W 445 video I found

if your not building a portable, or happy with a box portable, a flexmod P3 will happily supply enough current to power 2 of these diodes. Put them in a box, combine them with a PBS and you could safely have 3 watts of beam, more if you push the diodes.

The hard part for us laser show types is finding enough red. Blue and green are fairly cheap to get... red, at a decent wavelength and beam profile, not so easy :P
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Last edited by vk2fro; 12-19-2010 at 07:33 AM.
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