anyone used LPC819 Red-dar diodes before?

title says it all, has anyone used the LPC819 red-dar diode before? I have a couple samples and just tried testing them but was unable to get anything to happen. I tried the standard red diode pin assignment on each of my sample diodes with no success, tried every other combination on one of the diodes after that with no success. Was using 240mA on a Rkcstr driver.

from the looks of them they are LCC red diodes and are available as fresh brand new diodes (not from a sled) with super long pins. I was planning on buying a lot of them but now I don't think I'm going to after my tests.

thanks for any input.

-Kendall

edit: I didn't check with a camera to see if any IR was coming out, I had assumed this diode would be ~650nm but maybe its IR?

what's a red-dar diode?

ElektroFreak said:

what's a red-dar diode?

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I have no idea. very good question. It's what the seller calls the diode, here's a link, LPC819 Red-dar Diodes

they look awesome.

Weird. I'd say that if you think that a whole bunch of diodes are all broken to where they emit nothing (which would be pretty weird).. they must be IR. I'd check it out with a camera to be sure, like you said.

LOL ..... maybe it's an 808nm, and the seller want to say "red dark", cause you see 808nm as dark dimmed red ? .....

HIMNL9 said:

LOL ..... maybe it's an 808nm, and the seller want to say "red dark", cause you see 808nm as dark dimmed red ? .....

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Maybe. I'm getting more samples from the seller to do more tests they said they have no information about the diodes... just that they are similar to LPC815's.

If the pics on that site are accurate, then it's not a long-die anything.. those are regular size cans.

For me those look exactly like the IR diodes from the LPC sleds, maybe it's just a name for those diodes.

They are probably IR

did you check what current actually goes through the diode? you could find the right pinout with a multimeter. the diode should get hot on the right pinout, when not in a heatsink/module. you could hold your finger right in front of the diode, it *should* get warm with that current.. as the crudest possible wavelength-independent laserpower+meter.. ;-)

check with any camera, with that current/output you should be able to see something with any cam, no matter how well filtered!

keep us informed, perhaps youre up to something good here, 808nm anyone? ;-)

manuel

oh, one more thing: its windowless. i saw those only two times yet: the 5mw red diode from aixiz brass modules, and the 808nm pump-diode from chris and from my o-like module..

manuel