New 3.8mm red Diodes on the Block.

Thanks for doing this, These tiny buggers are awesome..

Wow amazing results!

I´m very interested in these

This is AMAZING news, I cannot wait to get my hands on some of these! What was the output at 850mA?

sinner said:

Thanks for doing this, These tiny buggers are awesome..

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Yeah I cant believe they take 1.1A NO Dimming and dint even LED YET. That is Insane.

DJNY said:

Wow amazing results!

I´m very interested in these

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If Enough people want them Ill Do a Group buy for you guys.

bloompyle said:

This is AMAZING news, I cannot wait to get my hands on some of these! What was the output at 850mA?

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IIRC during this testing it was 515mW. Probably as the diode was Warmed Up.

I Notice though that the Power does Change depending on Temperature.

The Lowest reading I got at 775mA was 481mA and the Highest reading I got was 528mW.

Out of the 3 diodes i tested They all seem to be within Range.


SO I think its best to say Expect to See >450mW with a 650-G type lens at 775mA.

Iam Not recommending this currant by all means. Its what I will run them at.

From their current signs of invulnerability, I agree with 750-800mA, plus if we can get them cheap enough, it won't be too much of an investment if we kill one. Awesome tests! +1

lazeerer said:

If Enough people want them Ill Do a Group buy for you guys.

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You should create a multi-option poll asking how many people are interested and specify price ranges. If enough people are interested, you should get to you supplier for a price discussion depending on the quantity.

Guess something around $25 should be possible, right?

These look fantastic! Im definitely in for a couple if you do a GB.

:beer:

DJNY said:

You should create a multi-option poll asking how many people are interested and specify price ranges. If enough people are interested, you should get to you supplier for a price discussion depending on the quantity.

Guess something around $25 should be possible, right?

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Ill Just Open a thread.

These Should be 15-20$ Shipped. Depending on How many people want them.

Ill Update shortly WHen i hear back from them.

Count me in for a GB. The 3.8mm modules got finally used for these diodes.

Tech_Junkie said:

yathern2 said:

What do you guys mean by "it has wings"? The only thing that comes to mind is the odd shape of a multimode beam, but this is single mode.

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Read more, post less. :yabbmad:

There is a plethora of typical red output images.

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I know what red output looks like. That clearly isn't what I asked. I asked what was meant by the term "wings". I browse the forums nearly all day (for the past few weeks at least), and I have seen many images of red beams/dots, I even searched for "wings" in the forum search, took a quick look around, before asking. Now I must admit, I may not have searched through every page of every result, but being that this is a friendly forum I thought it wouldn't be too unreasonable to simply ask someone to kindly explain it to me. I see I made a terrible mistake in doing this, please forgive me.

You gave me the wonderful advice to "read more, post less", so I took it to heart.

I thought I must have missed something terribly obvious, so my first step was to search on google images the output of lpc 815 / lpc 826/ lpc 836 diodes. But I saw nothing different than usual. Most certainly nothing about wings. I additionally looked up "LPC 826 output" on the forum search, which led to no useful information about "wings". Though I saw it mentioned a few times.

Finally, I got the idea to use the advanced search, and searched for "wings" within the red subforum. After finding nothing in the first few topics that appeared. I eventually found this:

http://i.imgur.com/ZL9md.png

I helpful post by rhd, explaining essentially that the "wings" has to do with the beam quality/shape of multi-mode diodes, as opposed to single mode diodes.

Hmm. This is very odd. Let's compare this to what I wrote:

yathern2 said:

...The only thing that comes to mind is the odd shape of a multimode beam, but this is single mode.

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So I guess my assumption was right in that case.

Maybe it's because I'm still learning, and I'm very sorry about that, but I don't understand why my comment resulted in such an insult for being not only a sincere and polite question, but even mentioning my uneducated guess towards the answer (which, as far as I can tell, is correct). Maybe it's because I don't read enough.

But can someone please explain to me what makes this diode have "wings" even though it is single mode? I am pretty new here, so I'm sure that's why I'm not familiar with this, but can I please get a straight answer?

The wings refer to a small line that passes through the dot while it is focused. It is a characteristic found on most high power red diodes due to small reflections coming from the output end of the diode. Some people find it annoying; I personally do not.

These diodes are a very nice find! It looks like these can take quite a beating. I may be interested if they turn out to be $15-20!

These are wings, the thin line through the laserdot.





And they come from here. The point in the middle is actually outputting the laserdot. As you see the wings are just a part of the die.

in for GB, great find lazeerer :beer:

I've only experienced those wings after I LED the diode....I was in the same boat as him having no idea what these "wings" were that we're all supposed to be familiar with with red lasers. I've never seen them on a high powered one, only after it's been LED'ed.

In for gb as well. 2-3

Thanks a lot for the help guys. It makes a lot more sense now. Sorry I was a little snappy earlier. I've been having a tough day and was in the mood to get upset over nothing. Its all good now though.

EDIT:


What exactly should I be looking at here? Is it how the light emitted is spreading out horizontally?