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Old 07-02-2015, 12:37 AM #17
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Default Re: 2w blue laser lens problem

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Originally Posted by Philipd7 View Post
Does anyone know where I can buy a 445nm blue laser window?
The window is built into the diode and is not replaceable. If you had the tool required to remove the diode from the module you could attempt to decan the diode but this must only be done by someone that knows what they are doing and it isn't always sucessful. Some have successfully broken the window without damaging the diode, but doing this is high risk also, if the glass falls back inside it can also kill the diode. It is best to never try to clean the diode window, if you keep the lens in at all times you should never get any dust in there to get it dirty in the first place.

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Old 07-02-2015, 12:41 AM #18
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Default Re: 2w blue laser lens problem

wait, in my picture above, is the thing in the center the diode?
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Old 07-02-2015, 12:44 AM #19
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Default Re: 2w blue laser lens problem

okay, nevermind, I understand
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Old 07-02-2015, 12:49 AM #20
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Default Re: 2w blue laser lens problem

Does anyone think I could unscrew the golden ring in my picture?
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Old 07-02-2015, 01:04 AM #21
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Default Re: 2w blue laser lens problem

Quote:
Originally Posted by Philipd7 View Post
Does anyone think I could unscrew the golden ring in my picture?
It's possible, it's clearly not a standard AixiZ type module, try it and see what happens.

Alan
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Last edited by Pi R Squared; 07-02-2015 at 01:05 AM.
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Old 07-02-2015, 01:30 AM #22
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Default Re: 2w blue laser lens problem

well I think a miracle just happened because I tried using neal polish remover (acetone) to clean it one last time and now half of the beam is back to the normal rectangle! I will try it again to see if I can get the whole thing back to normal. Like what the heck? how is this even possible?!?
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Old 07-02-2015, 01:48 AM #23
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Default Re: 2w blue laser lens problem

Update: I tried cleaning it again, and it stayed the same: half normal rectangle, half screwed up. So, I tried rubbing it harder with a dry qtip and it got 100% messed up. I rubbed it again and it was back to half and half. With this, I think I broke half of the window out the first time I cleaned it tonight. This can also be the reason why I can only see half of the window. The other half of the window is dark and I can't see crap about it.
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Old 07-02-2015, 04:33 PM #24
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Default Re: 2w blue laser lens problem

Don't apply to much force cleaning the window. It might just crack or fall inside the can.

Try different solvents - acetone, isopropanol, even water. Get the best quality as you can. You don't want to leave residues after a solvent evaporates; except water.

The best thing is to avoid cleaning - don't remove a lens from the mount to prevent dust coming inside.
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Old 07-03-2015, 06:09 AM #25
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Default Re: 2w blue laser lens problem

You can try sticking a dry qtip on teh window and spinning it a bit to see if you get a clean output. I've done it before.
I'm fairly sure these windows have an AR coating or something on them that seems to get messed up when you smear a qtip across them.
You should never touch the diode window with anything. But since you have already, do it again lol and try to correct it.
I normally just press a Qtip directly on it and give it a few spins, turn it on, and see if it's good, if not then give it a few more spins.

You can also remove the window completely.
This is risky, and should only be done as a last resort.
I dont even remember how I removed the window, i've only done it once before though.
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Old 07-03-2015, 12:26 PM #26
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Default Re: 2w blue laser lens problem

Hi,
You will definitely have to take the can off. Then the diode will be good as new but naked. Mind you if you do get anything on it after that that diode it toast period. There's a decanting tool I bought just for that it's from Thorlabbs it work on all three size diode packages. Good luck take your time with this procedure .l
Or you can see if DTR will Declan it for a price rend him a PM .

Last edited by Lifetime17; 07-03-2015 at 12:28 PM. Reason: Added note
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Old 07-03-2015, 08:40 PM #27
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Default Re: 2w blue laser lens problem

ill sell ya my blue 2w 445nm c6 if you need a replacement ..i have a spare and im looking to upgrade

its pretty powerful

www.youtube.com/watch?v=mb5DMPyF2es

Last edited by Nilknarf; 07-03-2015 at 08:50 PM.
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