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Nichia NDG7475 1W 520nm Laser Diode

DTR

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Nichia NDG7475 1W 520nm Laser Diode


Exciting day. Finally got my 1W Green diodes and could not wait to do some testing on them.:eg:






This 9mm diode has off center pins.




First thing I did is pop one in a sink and fire it up. Was amazed the brightness of the beam indoors during the day. Really bright.:drool:








This diode with the G-2 has a pretty identical box reflection that the 9mm 445nm does.





So next I decided to put them head to head and @ 25 Feet they were both about 30mm with a G-2.







So now on to the meat here is the LPM test of the diode. Test is done with a G-2 lens.


































There you have it. Whole lot of of Green goodness. Oh and for some dark shots.:beer:


 
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DJNY

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Was worth staying up (2:30 am here) :shhh:

Now let´s see what their max. operating current is :evil:
 

will manners

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Oh man.

Can't wait for these to drop in price.
Awesome that the beam specs are similar to the 445's
 

Livinloud

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So based on these tests, what are you going to package the diode and driver set to :thinking: 1.65A, 1.8A?
 

ricktrent4

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good work on the post ! they look gut like the new 9mm diodes, I have same hole on the back.
 
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CDBEAM777

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Thank you Jordan....Great quick First look !!!!!! My prediction is that one will get the tightest, closest to a far field spot with a pair of Anamorphic Prisms for correction coupled with the O-like 1/2 threaded glass lens. See attached concept drawing - " Green Extreme V1 "

It is great that the far field spot is as good as the 9mm 445. Perhaps, ANY correction is marginally useful. Guess it depends on your expectations.

I will build the " Green Extreme V1 ".....eventually !!!

I will also predict a farfield geometry of 16mm wide x 13mm tall at 50 feet (15.3M )...with /OO\....." Corrective Glasses "...based on my trials with the " Tridentis "

Thanx again !!!!!!!!!!!!!!!!!!!!!!!

CDBEAM=======
 

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ZRaffleticket

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Mmmm that phantom square. Why the heck does that even happen? I understand its the G lens and it focuses all of the diode's output rather than the optimal section of it...

But 1.5W... I can see quite a few people running them in the 2.8-3A range.
 

Blackwolf

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A GB/M build with this and a 9mm 445 would be a sight to see. 3-4W of magenta :)
 

ARG

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I like that. I like that very much. This will be easy to correct.

Thank you for sharing DTR :) :beer:
 

numquamretro

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Nice pics! :gj:
What divergence would you guys expect with optimum correction for the NGD?
 

Zeebit

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:drool: Gotta get myself one of those. Just gotta wait till the price drops. Imagine if these were as efficient as the 9mm 445nm diodes. 2.5W+ of green goodness.
 




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