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GB: 1W 520nm diode information/giveaway

ARG

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DATA HAS BEEN POSTED NDG7475T - Lasers Wiki

There is a discussion of the diode here: http://laserpointerforums.com/f45/new-nichia-9mm-1w-520nm-diode-86764.html

Please see the previous diode group buy for more detail in what this involves.
http://laserpointerforums.com/f55/gb-pl520-murder-fund-81496.html#post1170675
http://laserpointerforums.com/f55/gb-473nm-diode-information-giveaway-84526.html

We will not be killing this diode. Once all the information has been received it will be sent to a participant of the GB to keep.
Each 10$ you donate to the GB counts as one entry.
Daguin, or another trusted member will draw the winner.

Supporters:
ARG - 30 - Paid
Shakenawake - 10 - Paid
Grix - 30 - Paid
DJNY - 10 - Paid
Blord - 20 - Paid
crazyspaz - 10 - Paid
ZRaffleticket (transferred to Jeff/FP) - 20 - Paid
Mattronium - 10 - Paid
Wolfman29 - 20 - Paid
Atomicrox - 10 - Paid
bloompyle - 50 - Paid
mhemling33 - 20 - Paid
POLISHEDBALL - 20 - Paid
Arshus - 20 - Paid
Thejoker301 - 30 - Paid
anonymous1 - 270 - Paid
offroadfreak8582 - 20 - Paid
CDBEAM777 - 20 - Paid
andyf97 - 20 - Paid
anonymous2 - 40 - Paid
TheDukeAnumber1 - 20 - Paid
NO4H99 - 10 - Paid
Artemka - 20 - Paid
Jmillerdoc - 70 - Paid
shokkunlasers - 20 - Paid
BowtieGuy - 10 - Paid
SerpantSlayer - 10 - Paid
benmwv - 10 - Paid
Laserbiker - 10 - Paid
Smeerworst - 40 - Paid
Asmodian - 30 - Paid


Total: 930/930
Received: 930/930

Pay Here

<removed>
Please put your user name in the notes. Nothing else.


Send me a PM if you wish to pay with BTC.


Please note:
The only thing you are guaranteed to receive for participating in this GB is information on the new diodes.


Mod edit.


And the winner is...


G40nVtM.jpg


Congratulations!
 
Last edited by a moderator:



RA_pierce

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I think the idea is nice but if contributions are made and we expect info in return, how do we ensure that we get the info we want? A random selection from the donors might lead to the diode going to someone without the skills and/or tools to get the information we are interested in.
Edit:
DUH... so the testing is done BEFORE the diode goes away... I get it. Oops. Ignore this post.
 
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ARG

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I think the idea is nice but if contributions are made and we expect info in return, how do we ensure that we get the info we want? A random selection from the donors might lead to the diode going to someone without the skills and/or tools to get the information we are interested in.

I buy the diode and have it sent to myself. The equipment I have includes a NIST traceable Coherent Fieldmax laser power meter, and a Science surplus spectrometer; after the testing it then gets sent out for someone to keep.

It's the same format as the other diode GB's, I record current, voltage, power, temperature, and wavelength. :)

Edit: I see your edit. :p
 
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RA_pierce

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I buy the diode and have it sent to myself. The equipment I have includes a NIST traceable Coherent Fieldmax laser power meter, and a Science surplus spectrometer.

It's the same format as the other diode GB's, I record current, voltage, power, temperature, and wavelength. :)

Gotcha... I took a look at the other threads and figured that out.
Seems like a cool idea. I wish I didn't already spend too much on lasers this season. I would totally like to participate.
Good luck to everyone else. :)
 

Livinloud

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Subbed and let me know on that PSU this weekend ;)
 
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Shakenawake

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I want in for $10, maybe more later. what a sweet find, too bad about the price. As you pointed out, it is cheaper than a good 1W DPSS 532, but the point of diode lasers over DPSS IMO is to reduce cost, increase efficiency, and naturally to reduce components. I suppose this diode does all but one of those, and 1W of stable non-mode-hoppy 520 light would be sublime. I can only presume it's multi-mode, here's hoping it's better than a mitsubishi or even a 445nm 9mm diode

that ebay listing says "4 available / 3 sold in 24 hours"
 
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ARG

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I want in for $10, maybe more later. what a sweet find, too bad about the price.

The price will probably drop before we buy the diode, it has with the last two GB's :p
 

Leodahsan

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I can only presume it's multi-mode, here's hoping it's better than a mitsubishi or even a 445nm 9mm diode

beam divergence is 11ºx46º. For reference, the 9mm 445nm are 14ºx44º.

that ebay listing says "4 available / 3 sold in 24 hours"

Yesterday, there was 10 available. They are going fast... (and the price was raised ;) its $1K now)
 

cheech226

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wow! i see 1.5W handhelds on the horizon.
i expected a higher Vf like with the osrams....
 

Leodahsan

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I just sent techhood another request on the full datasheet.

I asked about a price drop (he did it before), lets see what happens.... ;)

$1K seems pretty harsh atm
 

ARG

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Updated the list, got you all down :)

11% of the goal is reached.
 




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