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Beam pattern from my diode w/o lens. LEDed or still good?? Thx!

Thanks Jerry, I've attached 2 pictures of the beam shot. It doesn't look right, parallel lines with gaps in-between. Having said that, this is straight out of the diode w/o passing through any lens. What do you think? This is a free 100mW IR diode. 9mm package. Thanks again :)

Hi guys, I'm looking for someone with experience with IR diodes to have a look at the pictures that I've uploaded to my other thread below: http://laserpointerforums.com/f67/opinion-lm2596-based-driver-77901.html#post1120816 I figure that this is a better forum to post the question as this...

you need to press your dioded in with Flaminpyro's diode press :san:

Hello Hello experts.... :) So I've hooked the driver up to my dummy load and to my 100mW diode (now I'm not sure if it's an LED or if it's still alive). Here are my findings: 1) Voltage drop across the Laser Diode is indeed 1.9v - 2.0v the diode's spec = 2.0v - 2.2v. 2) Current flowing...

gotcha. I'll measure the voltage across the LED and the 1N4001 diodes tonight and report. Cheers.

Hi DTR and Bionic-Badger, Thanks. I just want to add 2 things: 1) DTR, I did not heatsink this. Reason being, this was a free diode that was of the same Ampere and Voltage specs as the one that I will be using. The housing module has not arrived hence I could not press it into it to heatsink...

Hi guys, I've quickly tested some new settings and have observed the following: 1) You guys are right about the driver cutting the mA output once the voltage drop exceeds a certain voltage drop, however..... see point 2. 2) I had to crank the voltage output up to 3+ volts to get it to drive 3...

Thank you both so much. I think it may be hitting 2 limits here. Firstly it's hitting the forward voltage limit which explains why the LED turns from green to orange when I use 1 or 2 diodes in series as my load but as soon as I add a third diode it stays green and the mA output becomes very...

Hi guys, I have a problem with this driver. So here's what happened: 1) I hooked the driver directly to ampmeter (short circuit) as per the instruction and cranked it up till I get a reading of 1.2A 2) I set the voltage to what I want, 1.9V 3) I hooked it up to a series of 1N4001 diodes...

How is that different to the one that I have apart from the middle pot which allows you to set the led colour change? You only need that for charging batteries. I don't think it comes with that large black heatsink in the middle picture or does it?

Ok thanks. The item's description on one of the listing was it's suitable for anything under 2A. This seems to be different on this one. Maybe it's a different batch. I'll hook it up to the Ampmeter one of these days to see what the max A it outputs. Might have time to do this tomorrow. Yes I...

Hi all, I can't ignore the fact that this driver costs just £2.99 and is both constant current and constant voltage adjustable. It seems to be of quite good quality. Question is, what's the catch here?? With my limited knowledge I'm not sure what else to look out for and could use any opinion...

This is cheap, I was told very high quality and is both constant Current and constant Voltage adjustable. I'll start another thread with this to get opinions too: LM2596 DC 7V-35V to DC 1.25V-30V StepDown Adjustable Power Supply Module LED td | eBay

Jeff went AWOL over the weekend but he's now back (I think). I've just paid for my order.

that's my backup plan :)

I don't mind any tool but I'd like to know what can be used to press a TO-5 9mm diode in.

Flaminpyro has disappeared :(

Hi hi, did you get my order in my last message? Thanks.

Hi did you get my order in the PM? I'm just waiting for the payment instructions. Thanks.