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Old 07-22-2011, 05:27 AM #1
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Default Laser broken?

hey everyone, its been a while, but ive now got a problem with my laser.
a few days ago i came to use it and all it gave out was 3 vertical lines. ive charged the bats for ever and checked the wireing and the lens but i do not know why... any help would be great.

Here is my original thread, towards the end are pics of how it looks;
http://laserpointerforums.com/newrep...ote=1&p=763483


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Old 07-22-2011, 05:33 AM #2
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Default Re: Laser broken?

That is a true jury rigged host. Did you try taking the lens out and looking at the light emitted straight from the diode? That will help determine if your problem is with the lens or the diode it's self.
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Old 07-22-2011, 05:38 AM #3
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Default Re: Laser broken?

without the lens it looks like a perfect circle with the purple being darker on 20% of the top and bottom of it (horizontaly) and a minimal visible dot in the middle.
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Old 07-22-2011, 05:46 AM #4
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Default Re: Laser broken?

Although not exactly, does it look something like this?

http://img641.imageshack.us/img641/3782/4051e.jpg

So it has no obstructions, like a black line down the middle or anything, correct?
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Old 07-22-2011, 05:58 AM #5
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Default Re: Laser broken?

small one is with lens, and big one is without lens.

pics are for some reason rotated so just imagen them rotated once clock wise
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Laser broken?-img_0536.jpg   Laser broken?-img_0537.jpg  

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Old 07-22-2011, 06:00 AM #6
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Default Re: Laser broken?

Thanks for supplying pictures, it makes this a lot easier to troubleshoot.

Hmm, that unfocused light doesn't look right. I would advise you to clean it with some rubbing alcohol and a fine cloth, but if someone with a little more knowledge or experience can chime in, I'm sure they'd be able to give you a more educated suggestion.

From my understanding, here is what you are seeing

http://img33.imageshack.us/img33/6096/int1v.jpg

Did you look at the light without the lens before? Was it like this before or was it a solid circle?
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Old 07-22-2011, 06:16 AM #7
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Default Re: Laser broken?

ive cleaned the lens

here is a closer pic with the lens on and focused.
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Old 07-22-2011, 06:25 AM #8
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Default Re: Laser broken?

I'm not sure if the lens is the problem. Did you see in the picture I linked to you in my previous post how the spread of the light in the completely unfocused light looked like it kinda matched up with the light when focused?

I'm sorry I was vague when I said " I would advise you to clean it ", I ment the window of the diode it's self. Many people advise against this and I don't blame them, I never want to do it but one time the window of my 405nm laser got dirty, I cleaned it with a fine cloth and rubbing alcohol and now it looks about as good as new.
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Old 07-22-2011, 06:49 AM #9
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Default Re: Laser broken?

just tried it, no go
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Old 07-22-2011, 06:56 AM #10
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Default Re: Laser broken?

Does the diode no longer work?
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Old 07-22-2011, 06:58 AM #11
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Default Re: Laser broken?

well its emitting light so im thinking it still works, no?
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Old 07-22-2011, 07:20 AM #12
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Default Re: Laser broken?

Right, that still works.
When I cleaned my diode window, I got a very very verylittle bit of alcohol, put it on a fine cloth, put the cloth right ontop of the diode window (it was still in the Aixiz if you are wondering) and used the graphite from a mechanical pencil to get the area of depression down to a fine point. I moved it around a bit to clean the entire window. After that, I let it dry and viola! It was alright, not as good as it was origionally, but still good!

Before you do anything though, look at the window of your diode, is there anything on it that could decrease output?
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Old 07-22-2011, 07:25 AM #13
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Default Re: Laser broken?

yeah there is a tiny white block type thing but thats always been there i think, i dont have R-A so ill have to buy some in the morning
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Old 07-22-2011, 07:30 AM #14
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Old 07-22-2011, 07:31 AM #15
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Default Re: Laser broken?

I'll admit my ignorance and ask what an R-A is?
Also, did you look at the light without the lens before? Was it like this before or was it a solid circle?

That small white square could be the silent killer here, diode windows are usually spotless.

Haha DTR, may I ask what is with your zombie?
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Old 07-22-2011, 07:33 AM #16
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Default Re: Laser broken?

Hate to say it but I am pretty sure by the picture of the raw output your diode has gone zombie.


Last edited by DTR; 07-22-2011 at 07:34 AM.
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