[Cyborg] 200 laser diodes

Eric Boyd mrericboyd at yahoo.com
Wed Jun 2 23:13:11 PDT 2010


Well that was fast, here are the Q&A, both good news!:

<<
Tim Lee: Hi,Eric,
Glad to receive your email.
1)Yes,the goods have drive already,you only put into DC3-5V,red power 
lead is "+",and black lead is "-".you don't need limit its current.
2)100units have 5% discount.means $2.54 per unit.

Best regards
Tim Lee
Shenzhen Fuzhe Technology Co.,Ltd.
FU-Lasers for you!
Tel: +86-755-84528255
Fax: +86-755-84528390
Email:fulaser at gmail.com
MSN:mandy-lees at hotmail.com


 >>> mrericboyd Wed Jun 02 22:26:24 PDT 2010 >>>
I'm looking at your "Civil Class 3A red 650nm 5mw dot diode laser 
module", I have two questions:

1) Does it have the drive electronics already included? i.e. can we just 
hook up a voltage source to the two leads and expect it to work? Do we 
have to limit the current or will it do that?

2) I'm looking for 100+ units, do you offer a volume discount price?

Thanks,
Eric
 >>



On 6/2/10 10:26 PM, Eric Boyd wrote:
> I've sent a question to the seller about the included electronics and
> volume discount price.  Here's hoping they have someone who reads&
> writes english :-)
>
> Eric
>
>
>
> On 6/2/10 1:47 PM, Rachel McConnell wrote:
>> Oh man laser outfit... I sure want some.  That link gives pricing for
>> 1-10, maybe if we end up wanting a bunch more they might provide a
>> further discount?
>>
>> I wonder if one could have a built-in smoke machine emitting particles
>> along with the laser beam for best viewing.  I saw a smoke machine on an
>> outfit over the weekend, I will see if I can contact the maker of that
>> and get more details.
>>
>> Rachel
>>
>> Eric Boyd wrote:
>>> I sent a contact thing to the dude, asking if he's got any design
>>> information up anywhere, and about eye-safety of the device.  Because I
>>> think that's the key thing here: can a beam which is visible in e.g. a
>>> club (dim lights) also be eye-safe?
>>>
>>> According to wikipedia (http://en.wikipedia.org/wiki/Laser_safety), to
>>> be legal (=eye safe), the laser must be<5mW, that makes it fall into
>>> class IIIa (now class 3R).  I found some fairly cheap IIIa laser diodes:
>>>
>>> http://www.aliexpress.com/product-gs/263635799-Civil-Class-3A-red-650nm-5mw-dot-diode-laser-module-wholesalers.html
>>>
>>> It's not clear to me if you need an external circuit other than a
>>> current-controlled voltage source to drive these.  I don't think so, I
>>> think that's what they mean by "module" as opposed to just buying the
>>> diode.  If you do just need a current controlled voltage source, we
>>> should be able to drive these directly from the North Paw circuit, all
>>> we need is some resistors in series with the "motor" outputs.
>>>
>>> But I agree that while building the device, we'd need to have some
>>> goggles.  It'd give you a headache for sure if you caught one in the eye
>>> more than a few dozen times.
>>>
>>> Anyone else interested in bulk ordering of these?  With shipping they
>>> are going to be about $4 each, so for<$50 you can have a pretty decent
>>> number of them.
>>>
>>> Eric
>>>
>>>
>>>
>>>
>>> On 6/2/10 11:52 AM, kristinneidlinger wrote:
>>>> I want to build one!
>>>> I did some design research of where they should be placed for a postal
>>>> feedback suit and ended up with a huge headache!  So, we should look
>>>> into some goggles too...
>>>>
>>>> k
>>>>
>>>>
>>>>
>>>> On Wed, Jun 2, 2010 at 10:39 AM, Eric Boyd<mrericboyd at yahoo.com
>>>> <mailto:mrericboyd at yahoo.com>>   wrote:
>>>>
>>>>       http://www.behance.net/Gallery/200-LDs-Stage-Suit-icommercial-casei/493017
>>>>
>>>>       OMG, this is the awesome-est light-up wearable outfit I've seen yet.
>>>>       Lasers make LEDs seem so boring!  Even the "laser suit sample" is wicked
>>>>       cool:
>>>>
>>>>       http://www.behance.net/Gallery/Laser-suit-sample/464787
>>>>
>>>>       Who wants to build one? I'm super keen, and if we build multiple units
>>>>       we can push down the cost a little (laser diodes are expensive...)
>>>>
>>>>       Eric
>>>>       _______________________________________________
>>>>       Cyborg mailing list
>>>>       Cyborg at lists.noisebridge.net<mailto:Cyborg at lists.noisebridge.net>
>>>>       https://www.noisebridge.net/mailman/listinfo/cyborg
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> . . .  .  *
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>>
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