685nm 35mW Laser Diodes on Ebay!

• Mar 11, 2011

• #33

HIMNL9

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For the input voltage ..... remember that these are step-down linear regulators, so the input voltage must be higher than the LD voltage ..... anyway, those drivers have usually less than 1V of dropout ..... about the maximum input voltage, i'm not sure, anyway you can see that they have no tantalium capacitors on the input, so the only limit is given from the IC maximum power supply, and from the 10uF 6.3V tantalium capacitor at the output (LD side, marked J106) ..... as far as the output is not higher than 6V (no LDs with over 6V of FV), and the input remain under 12 / 13V, no problem for the voltage.

Only remember that a linear driver need to dissipate ALL the extra power in heat, so more the input voltage is near the FV of your LD, better it is ..... can say, if your LD have a FV of 2.8V or similar (red diodes, usually), a 3.7V Li-Ion cell will be enough.

 

• Mar 18, 2011

• #34

LtKernelPanic

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Hmm. Stupid question time. What are these diodes rated at? I'm going to order a set either this pay day or the next and can't find a datasheet that I don't have to register/pay for to get.

jib77 said:

Ill be using the following host with a single 10440 cell and my LM1117 driver:

$3.60 - MXDL XT-7119 3W 50-Lumen LED Flashlight with Clip (Color Assorted/1*AAA) - Other LED Lights

Click to expand...

I like the looks of those hosts. Any idea if the reflector can be reversed and drilled out like some of the cree hosts can? With a low powered build it really shouldn't need much in the way of a heatsink. I suppose I could get someone to make a couple heatsinks too if needed. I may order another of those cree hosts Lazeerer used in his one build and hope they're the old style reflectors and not the newer style. Guess I can always use one more flashlight if it's the newer style.

 

• Mar 18, 2011

• #35

lazeerer

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That is a Stupid question.

First Of Read the tittle of the thread.

Then go to the Original Post that i posted and you will Find the DataSheet there. You dont have to pay but If you like You can Paypal me Half what the others were charging. j/k

If you need more help then that i dont know what to tell you.:crackup:

 

• Mar 18, 2011

• #36

Toke

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Looks interesting, and worth a try.

 

• Mar 18, 2011

• #37

lazeerer

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High All,

35mW 685nm Diodes & Lenses came in today.

Here is the packaging and what you should expect once receiving them:

I will Test one in a couple of hours for you all when i get back from the Store.

:thanks:For Looking.!!!

 

• Mar 18, 2011

• #38

A

anselm

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• Mar 18, 2011

• #39

midias

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Awesome I hope I get mine today I got an adjustable lm317 driver and an Aixiz ready to go.

 

• Mar 18, 2011

• #40

Flaminpyro

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I just ordered some myself can't wait to see that color

 

• Mar 18, 2011

• #41

midias

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Well mine came today or at least it would have but my postal carrier was too lazy to walk up to the house and get a sig so I got a card in my mail box.

 

• Mar 18, 2011

• #42

rhd

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Will the colour really look *any* different than a LOC diode run at low current? IE - could you tell them apart?

midias: Your signature is out of order

...yes, I'm a little OCD

 

• Mar 18, 2011

• #43

J

joeyss

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It should be noticeably dimmer and a more deeper red vs 660nm. I can't say for sure since I never seen it.

 

• Mar 18, 2011

• #44

Cyparagon

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No. Even 808 is just as red as 660.

 

• Mar 19, 2011

• #45

mfo

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Cyparagon said:

No. Even 808 is just as red as 660.

Click to expand...

Really? That's kind of lame =\ Howcome that is?

 

• Mar 19, 2011

• #46

LtKernelPanic

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OFFS! How did I miss that?! Maybe I took an inadvertent reflection from my 445 and that's why. Yeah that's it*. Thanks.








*Actually I'm just an idiot and missed the link. I never use my 445 in situations with I can potentially take a reflection without using my glasses.

 

Last edited: Mar 19, 2011

• Mar 19, 2011

• #47

lazeerer

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Hey All,

Was able to put one together.

Heres a video on How to Extract the Diode from the Aluminum Heatsink it comes in:


Here are some Pictures of the color of this wavelength: (More to come tonight)

Hope this Helps. More to come.

I also Order another Lot of 3. I kinda like this Deep Color.

 

• Mar 19, 2011

• #48

aryntha

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Mine arrived, but unfortunately they had been stepped on, the leads completely crushed and one window cracked... Disappointed in that, looks like the thin envelope they were in had been stomped on or driven over.

To those who have gotten these working - is it definitely deeper red, to you, than 650?