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Old 12-14-2010, 09:37 AM #1
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Default can it be real? 2W china 445 laser?

Just found it in Alibaba site:
They clame of Beam divergence 1.0mrad ?? Can it be with a 445nm Diode?
maybe with 405nm

Adjustable focus 2000mw 450nm blue laser pointer products, buy Adjustable focus 2000mw 450nm blue laser pointer products from alibaba.com


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Old 12-14-2010, 09:54 AM #2
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Default Re: can it be real? 2W china 445 laser?

300-2000mW? Yep, description is misleading but technically true.
The nichia diodes can be powered between 300mW (roughly lasing threshold) and max out just over 2 watts.
They are probably powering them up to ~1 watt based on the 5000 hour expected life.
Overpriced, get them from a LPF member instead, ours are usually up to spec and built with loving care

*edit* The part about TEM 00 is crap though, these are multimode emitters. There is no possible way of getting a true gaussian profile.
The divergence is also bull$#!t, these diodes just aren't capable of that little divergence without very costly beam expanding optics.
Why are alibaba sellers always gender confused men posing as women?
*edit#2* Just noticed this seller only wants western union, moneygram etc. This is a scammer's method, there is no recourse if you don't get your item. I almost bought a sportbike a while back but a little research showed what the real deal is. Sellers using these methods deserve to be shot with a ball of their own...poopy
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3 - 1.6W 445 handheld in a professional home DIY host - 2 Sold
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Old 12-14-2010, 10:31 AM #3
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Default Re: can it be real? 2W china 445 laser?

Optical structure Separation of crystal cavity design - crystals? this aint DPSS right ?
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Old 12-14-2010, 09:23 PM #4
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Default Re: can it be real? 2W china 445 laser?

There is also no way to run it off 2 AAAs Not enough voltage and the current needed from the batteries to boost would bow the little Alkalines up
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Old 12-15-2010, 10:54 AM #5
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Default Re: can it be real? 2W china 445 laser?

Quote:
Originally Posted by Toaster View Post
There is also no way to run it off 2 AAAs Not enough voltage and the current needed from the batteries to boost would bow the little Alkalines up
True, they probobly stated that wrong to.


further down it states that it uses 2x 16340 wich we all know is what it should use just like those that rayfoss and o-like sell.
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Old 12-17-2010, 12:42 PM #6
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Default Re: can it be real? 2W china 445 laser?

Quote:
Beam diameter (mm)
1.0-1.2mm(at the output mirror)
Output mirror?
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