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Old 11-11-2010, 02:07 AM #1
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Cool My god, it's blooooooooo

These newfangled 445nm diodes have forced me and my wallet to come out of seclusion and slap together a new laser. Wow, this thing is bright. It puts my sad little ~200mW LPC to shame. I actually accidentally *burned* my hand with this thing. Seriously - it's blistered and everything. Here are some obligatory zapping videos:

It cuts a matchstick in half:
YouTube - Dvorhagen's Channel

..And lights a (white) match in about 200 milliseconds:
YouTube - Dvorhagen's Channel

Specs:
A-140 Nichia 445nm diode @ 1.25A
405-445 glass lens
Milled aluminum heatsink
Heatsinked LM317-based driver

I'm guessing (hoping) the output is around 1W.


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Lasers:
"Grimace": 405nm 125mA PHR, build
405nm variable current 41-250mA PHR, build
405nm eBaser
"Cerulea" 445nm 1.25A A-140, build
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"Red Delicious": 650nm 145 mW LOC LPC-815, build
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Old 11-11-2010, 05:38 AM #2
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Default Re: My god, it's blooooooooo

How about pics of your laser and a little more info.
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Old 11-11-2010, 03:49 PM #3
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Default Re: My god, it's blooooooooo

I don't think A-140 is a Nichia LD model...
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Old 11-11-2010, 04:07 PM #4
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Default Re: My god, it's blooooooooo

^gee, ya sure about that?
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Old 11-11-2010, 05:10 PM #5
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Default Re: My god, it's blooooooooo

^There's really no way to know for sure.

Likely? Yeah. Surely? Nah.
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Old 11-11-2010, 05:15 PM #6
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Default Re: My god, it's blooooooooo

I didn't check nichia's website, but I really don't think it is nichia branded, as the famous projector diodes are really unexpensive compared to nichia ones... lol

A-140 = projector brand
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Old 11-11-2010, 06:04 PM #7
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Default Re: My god, it's blooooooooo

It was billed as a Nichia, but who'sever it is, it works.
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Lasers:
"Grimace": 405nm 125mA PHR, build
405nm variable current 41-250mA PHR, build
405nm eBaser
"Cerulea" 445nm 1.25A A-140, build
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"Red Delicious": 650nm 145 mW LOC LPC-815, build
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Old 11-11-2010, 08:17 PM #8
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Default Re: My god, it's blooooooooo

Here's the laser itself:
http://flic.kr/p/8SEs1E

And a nice beam shot:
http://flic.kr/p/8SErZG
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Lasers:
"Grimace": 405nm 125mA PHR, build
405nm variable current 41-250mA PHR, build
405nm eBaser
"Cerulea" 445nm 1.25A A-140, build
532nm eBaser
"Red Delicious": 650nm 145 mW LOC LPC-815, build
650 nm ~250 mW LPC-815 labbie, build

Last edited by Dvorhagen; 11-11-2010 at 08:21 PM.
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Old 11-12-2010, 03:14 PM #9
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Default Re: My god, it's blooooooooo

You must get terrible run times with that 9V.
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Old 11-12-2010, 09:09 PM #10
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Default Re: My god, it's blooooooooo

Yep, but I'm too cheap to buy 18650s. Anyway, I rarely use these things for more than a few seconds at a time.
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Lasers:
"Grimace": 405nm 125mA PHR, build
405nm variable current 41-250mA PHR, build
405nm eBaser
"Cerulea" 445nm 1.25A A-140, build
532nm eBaser
"Red Delicious": 650nm 145 mW LOC LPC-815, build
650 nm ~250 mW LPC-815 labbie, build
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