Is it dead?

[Akeyla]

This first post here is mostly irrelevant now, please see my newer post below #4, just didn't want to start a new thread for the same diode. And the picture was hosted on a personal server whose static IP has changed and I'm too lazy to update the DNS records right now. In fact the picture would probably just distract from my new question. . . . Can an open can M140 survive?




Below is the original from months ago.

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This is a shot of just the diodes output without a lens.

Formally it was a nice rectangular shaped fairly evenly disturbed light in slight bands, as on out the outside. Now it's just a blob mess in the middle.

Putting the lens on and the best it will focus to is a blob dot of about a couple inches with a bright spot in the middle.

Thanks

~Akeyla

 

[Trevor]

If there's nothing on the diode window or your lens, then I would say yes, it is dead.

Trevor

 

[Akeyla]

Is there a safe was to clean the window on the diode can? Rubbing alcohol and a qtip? Photography lens wipes and solution?

 

[Akeyla]

Going to necro my own post.

The original picture I believe is gone, but what it was was the diode with out collimator showing the rectangular diode output but in the middle was a big blotchy mess and it wouldn't collimate properly, just a mess.

Last night I was bored, had just got my package from Survival Laser with a 1.25a drive, c6 host, heatsink, basically what's needed sans diode. Put the pieces together and thought about that "dead" m140 diode. Using a 30x jewelers loupe I could see a spot on the diode window that was probably something that had gotten in a burned on, I don't know. I don't know if there's a proper way to do this, probably is, but I used a dremel on a low slow setting and the most thin cutting disc I could find and removed the can / window from the diode. Pressed the diode in a heatsink, dropped it in the new parts from survival, and bam the damn thing works perfectly again.

So I have an open can M140. Can I expect that to actually last, or having removed the can will it die quickly?

Thanks!

 

[NightExplorer96]

Going to necro my own post.

The original picture I believe is gone, but what it was was the diode with out collimator showing the rectangular diode output but in the middle was a big blotchy mess and it wouldn't collimate properly, just a mess.

Last night I was bored, had just got my package from Survival Laser with a 1.25a drive, c6 host, heatsink, basically what's needed sans diode. Put the pieces together and thought about that "dead" m140 diode. Using a 30x jewelers loupe I could see a spot on the diode window that was probably something that had gotten in a burned on, I don't know. I don't know if there's a proper way to do this, probably is, but I used a dremel on a low slow setting and the most thin cutting disc I could find and removed the can / window from the diode. Pressed the diode in a heatsink, dropped it in the new parts from survival, and bam the damn thing works perfectly again.

So I have an open can M140. Can I expect that to actually last, or having removed the can will it die quickly?

Thanks!

A picture of the "Dot" would be most helpful

 

[Akeyla]

The dot is irrelevant, unless it's the new dot after can removal, in which case it's perfect. As I said there was a mark on the diode window, which was removed with the can. The question was if an open can (which it now is) M140 will survive.

Thanks

 

[crazyspaz]

Going to necro my own post.

The original picture I believe is gone, but what it was was the diode with out collimator showing the rectangular diode output but in the middle was a big blotchy mess and it wouldn't collimate properly, just a mess.

Last night I was bored, had just got my package from Survival Laser with a 1.25a drive, c6 host, heatsink, basically what's needed sans diode. Put the pieces together and thought about that "dead" m140 diode. Using a 30x jewelers loupe I could see a spot on the diode window that was probably something that had gotten in a burned on, I don't know. I don't know if there's a proper way to do this, probably is, but I used a dremel on a low slow setting and the most thin cutting disc I could find and removed the can / window from the diode. Pressed the diode in a heatsink, dropped it in the new parts from survival, and bam the damn thing works perfectly again.

So I have an open can M140. Can I expect that to actually last, or having removed the can will it die quickly?

Thanks!

Open can diodes work fine- the only thing that the case has is a tiny little "window" that keeps dust/ debris out. It should work fine

In terms of it like catching on fire or melting or something like that, it wont happen because it is de-canned.

 

[Akeyla]

Thank you, that's pretty much what I was looking for. I've used open can diodes, the lpc's, I've just never removed the can from a diode and then ran it.

Thanks

:beer: