[Noisebridge-discuss] red laser diode module group order

[Mitch Altman]

> Date: Thu, 3 Jun 2010 12:01:12 -0700
> From: adi at hexapodia.org
> To: dcfrench at gmail.com
> CC: noisebridge-discuss at lists.noisebridge.net
> Subject: Re: [Noisebridge-discuss] red laser diode module group order
> 
> On Thu, Jun 03, 2010 at 11:51:02AM -0700, Don French wrote:
> > On Thu, Jun 3, 2010 at 1:33 AM, Christie Dudley <longobord at gmail.com> wrote:
> > > Eh. You'd need a lot more than 5mW to put an eye out.
> >
> > As far as permanent blindness goes, that is correct. But there are cases
> > where people have (stupidly) shined a <5mW laser into their eye at close
> > range for several seconds and received a scotoma (blind spot). But even in
> > those cases, they all fully recovered within 3-6 months.
> 
> I wouldn't blindly (heh) trust the sticker that says "5mW" on a random
> diode from a reseller in China; I've heard stories of parts being badly
> mislabelled (5 mW on the label, 40 mW on the meter).
> 
> There's market demand for "brighter", but legal restrictions on selling
> anything rated higher than 5 mW. So, definitely an incentive to
> under-label.
> 
> Luckily, we have friends with tools, so we'll meter out a few diodes
> from this batch.


Do you know someone with a meter?  If not, Nick, from Seattle gave me his address to send a few to for testing on his equipment.  I'm happy to spare a few diodes for testing the output.

 

Mitch.

 
 		 	   		  
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