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FrozenGate by Avery

470nm diode






Cyper is extremely immature and I wouldn't trust him for a second. There is absolutely no way that I would ever send him anything. I honestly don't know why he hasn't been banned after the way he has behaved on these forums.

#2 is hardly an option, since no one here trusts my subjective opinion unless I can back it up with instrumentation that I don't have.

I really don't mind if the thread dies; I posted it to try to get information, which, for the most part, I have gotten. I believe this is probably ~450nm, which in reality probably suits my purposes better than 470nm would.

I wouldn't mind sending it so someone to get a more detailed analysis, after I have finished testing it here.
 
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^^^ No one is saying that we dont Trust your Judgment on it but in reality Have you seen 445nm in person or 473nm in person. I dont think you have since you dint answer that part. But you might of forgotten also.:thinking: So Your Judgment is Solly going off what you see in videos or Pictures.

Many of us have and own these wavelengths and know what it looks like.

However Still even with pictures videos we cant even tell. So we are just giving our opinions on the matter.

So Like i said the only way to know for sure is send it off to someone with a little more experience.

RHD can even do it with the Diffraction Grating.

I guess when you are ready to send it out you will. But im sure you are also curious to know what it is Exactly.?
 
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I'm not taking sides here. I just want to state my personal opinion.

I was skepticlal this unit would not be "as claimed" and I still am.

Now from what I understand... this is supposed to be a 473 "diode" which has not really been proven and IMHO I don't think anything HAS to be proven if the op doesn't want to... On the other hand, from what I can tell from the photos is the laser is NOT 405. However it very well could be a single mode 450nm diode OR it could be 473.. I don't believe the laser you possess is 473 and I think it would be impossible to tell from photos.

I have been surprised before when the so called "blue 445 diodes came out... before we even knew they could be run at 1W+" so don't think I am picking on you. The thing is... you claimed "473nm diode" without any solid data other than some photos and a crappy datasheet that isn't even from the manufacturer. We are not here to attack you but please before you claim something... at least do some testing and some solid evidence backing up your claim...

You clearly have a singlemode laser... now which is it? 450nm or 473nm?
 
This is how my camera pics up the colours... it's pretty close to reality.

405445473.jpg


I would love to see more testing on these units Ablaze... qumefox is a trusted and professional member.. I would love to see his results.
 
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Ablaze said:
...since no one here trusts my subjective opinion ...
Click to expand...

Evidence isn't required in many cases. You wouldn't have to prove to us that you saw a blue car drive past your window. In this case and with the "resistor in series with a constant-current driver" grudge you're holding, demanding valid evidence helps us distinguish valid claims from false claims. This is a valuable ability in a world where believing false claims can damage your wealth and your health. We're not questioning whether you believe it, we're questioning whether it is true. Try to see the difference.
 
lazeerer, your assumptions are valid. I haven't seen a confirmed 473 or 445 in person.

jeff, I really don't think I'm making false claims here. I made this thread to try to get enough knowledge to evaluate what my distributor is offering, since detailed communication with him is difficult and often not productive.

bob, thank you for the image. My light really does look most like the 445, except that I don't see the purple around it unless I shine it on a purple wall.

So I'm going to operate under the working assumption that it is a 445nm diode until I get it tested by actual equipment. I believe my brother has seen the different shades of blue, I intend to ask him this weekend.

One other piece of somewhat inexact evidence I can present is the apparent brightness. At 25mw this thing is bright! The relative brightness calculator indicates that it should appear half as bright as my 5mw green, but in reality I have a hard time telling which one is brighter. I can see the beam faintly in the air. In the future I think I will order these at 15 or 20mw.
 
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It's pretty obvious that Ablaze isn't trying to 'pull a fast one', he's just doesn't have the resources to be sure.

I'd love to get a hold of this and do a real test... I'll see what I can arrange in PM.
 
Very interesting thread. Good read. The chance of it being 470nm now looks, to me, pretty slim, but I'm in favour of getting it spectrometer-ed just in case. Also, are you going to try to get your money back from the seller and inform them that they're incorrect?
 
JaiNobeZ said:
Very interesting thread. Good read. The chance of it being 470nm now looks, to me, pretty slim, but I'm in favour of getting it spectrometer-ed just in case. Also, are you going to try to get your money back from the seller and inform them that they're incorrect?
Click to expand...
Well I've now looked at a lot of pictures and videos and based on that (rather than a knowledge of what tech is available) it really seems to be somewhere around 460nm.

Here is Cypar's dot image on a confirmed 450:
SAM_2646.jpg

and here is my dot image:
img1774y.jpg

img1778rc.jpg


BEAMSHOT!

img1785bf.jpg


They're pretty similar. I do think mine looks lighter, but not as light as the sky blue of the 473s I've seen in pics. I offered to sell it to aryn for what it cost me, but that is rather overpriced if this turns out to actually be a 445nm diode.

I'm planning to troll around campus next week and see if there is a physics lab with a spectrometer there.
 
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I don't know where anyone got the impression that you can compare photos for colour, with ANY success whatsoever. It's not even useful as a ballpark. Period. You cannot tell anything about colour/wavelength from a photo. Sometimes, a 445 will look like a 405 - you'd even swear it was - but it isn't. Photo colour comparison is useless, period.

Ablaze:

Send your diode to Aryntha. You're both in the US. I'm sure someone here will even cover your shipping costs both ways, for a trackable shipping service, fully insured. You'll be without your diode for a week, and then this whole issue will be put to rest.

You don't have to do anything. But you came here and dangled something that a lot of people are quite interested in. Now you're not taking the steps that would be necessary to either confirm or invalidate this new thing that we're all interested in. Nor are you telling us where we can order our own to figure this out directly.

So, you don't have to do anything. But if you don't, you're going to start engendering some major bad karma, and negatively impacting your reputation, with people who are likely getting quite frustrated at the deadlock.
 
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The_LED_Museum, qumefox, Aryntha and Cyparagon all have spectrometers, please get it spectrometered! This is exciting :D
 
LEDs are a poor comparison for two reasons. First, like lasers, the emission is seldom exactly where the manufacturer says it is. Second, the spectral linewidth is very large. This will appear as a more pale, green-shifted color than a single narrow line.

LED-Blue-20W.png
 
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