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Old 08-11-2011, 12:54 AM #1
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Default Possible Diode issue?

I recently got a kit from survival laser, put it together, and am having a focusing issue.

I am unable to get anything that resembles a beam. There is what appears to be a silver piece of metal covering part of the diode, could this be the cause?

Below I have included a few pictures, though did not embed them due to size.

1. Diode straight up, no lens.
#1
2. Diode with lens
#2
3. Diode with lens, reversed
#3
4. Picture of diode assembly.
#4

Am I barking up the wrong tree here?


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Old 08-11-2011, 10:51 PM #2
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Default Re: Possible Diode issue?

Beam looks pretty normal for an unfocused beam.
Instead of screwing the lens all the way in, only partially screw the lens on.

1. Ensure nobody else in the room
2. put your goggles on
3. point the laser at a wall, the farther, the better
4. turn on the laser
5. screw the lens in or out to see the size of the output change and figure out which way to turn it to focus it tighter.

Last edited by BShanahan14rulz; 08-11-2011 at 10:53 PM.
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Old 08-11-2011, 11:03 PM #3
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Default Re: Possible Diode issue?

Yep the raw output looks good. Have you tried screwing the lens in further?
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Old 08-12-2011, 03:16 AM #4
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Default Re: Possible Diode issue?

Looks like the lens is pretty dirty but other than that it seems ok.

Try what DTR said and screwing the lens in further.

Any chance of you taking a video of you adjusting the lens and seeing the output?
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Old 08-12-2011, 05:16 AM #5
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Default Re: Possible Diode issue?

I found the issue, the lens was put in backwards before it was shipped, not allowing it to get anywhere close enough to the diode. I might have completely destroyed the diode housing and the lens housing, but now that I know the problem, I can worry about those issues...
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