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Old 01-09-2010, 07:49 AM #1
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Default Green laser 50mW problem

Hey guys!

i've got a 50mW green laser. it was working fine until one day all of a sudden it lighted up and at my next attemp to light it up it wouldn't. now when i press the button and look inside through the top of the pen (where the beam comes out) i can see a red ,powerless light but no beam at all

i've tried changing batteries but still nothing. is there a way to solve this problem?

here is a photo:










thanks !!


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Old 01-09-2010, 09:19 AM #2
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Default Re: Green laser 50mW problem

Quote:
i can see a red ,powerless light
The red light your looking at is probably IR light, invisible, not powerless but DEADLY to your eyes!

Think very carefully about looking at that light.

Search for' DPSS lasers' and how they work and it will give you some clue as to what has gone wrong with your pointer.
There not usualy, economicaly fixable.
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Old 01-09-2010, 09:55 AM #3
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Default Re: Green laser 50mW problem

If you didn't drop it (which can cause ktp crystal missaligned) than your diode died.

Try to look with mobile phone camera an see if there is significant quantity of IR light comming out of the laser...

Last edited by brighter; 01-09-2010 at 10:02 AM.
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Old 01-09-2010, 03:31 PM #4
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Default Re: Green laser 50mW problem

no i havent dropped it and there is no beam at all coming out, the red light i talked about is just like a red lamp lighting. and it is strange that a red lamp lights as the laser is green..

i used a mobile phone camera and the light seems to be blue to violet (seems u were right)
any ideas?

Last edited by gat1994; 01-09-2010 at 03:35 PM.
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Old 01-09-2010, 03:40 PM #5
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Default Re: Green laser 50mW problem

sorry to say its unfixable.... As was already stated... DON'T LOOK AT THE RED LIGHT!!!! Although it may look dim and harmless it is putting out an invisible infra red beam that can do serious damage to your eyes!!!
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Old 01-09-2010, 04:17 PM #6
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Default Re: Green laser 50mW problem

yeah ok ..but what about the laser pen..will i be able to fix it??
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Old 01-09-2010, 04:48 PM #7
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Default Re: Green laser 50mW problem

Obviously looking at the IR Light has al already damaged your eyesight!

Quote:
will i be able to fix it??

Quote:
sorry to say its unfixable.... As was already stated
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Old 01-10-2010, 07:21 AM #8
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Default Re: Green laser 50mW problem

anyone knows what causes this problem?
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Old 01-10-2010, 07:32 AM #9
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Default Re: Green laser 50mW problem

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Originally Posted by gat1994 View Post
anyone knows what causes this problem?
The answer to your questions has already been posted. Try reading the replies to this thread through again. If you still fail to find the answer, then search for it
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Old 01-11-2010, 02:18 AM #10
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Default Re: Green laser 50mW problem

Green lasers are DPSS, which means diode pumped solid state. The diode pump is a powerful IR 808nm diode whose emission appears to be a deep red and also dim. The crystals convert this 808 to 1064 and then 532 green. The emission from a pump diode is capable of causing severe eye damage and blindness. For a 50mW laser, this pump diode could be putting out up to 500mW. This is blinding, burning IR power. Do not shine this into the eye! If you aren't knowledgeable on green lasers, just remove the dead module from the laser and put in a replacement from o-like or DX as this is the easy way to fix the laser. It is not easy to do repair surgery on the dead module.
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Old 01-13-2010, 04:57 PM #11
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Default Re: Green laser 50mW problem

are there any tutorials i can follow in order to fix it?
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Old 01-14-2010, 09:04 AM #12
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Default Re: Green laser 50mW problem

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Originally Posted by gat1994 View Post
are there any tutorials i can follow in order to fix it?
Do you have someone type these reply's for you because obviously you can't read so you probably can't type either.
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Old 01-14-2010, 12:39 PM #13
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Default Re: Green laser 50mW problem

Thank you billg519 I believe he has damaged his eyes looking at the IR laser so maby if he reads it one more time he will see it all and realize it dosn't realy take 15 people to tell him the same thing befor he can see it

Have a good day !


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Green lasers are DPSS, which means diode pumped solid state. The diode pump is a powerful IR 808nm diode whose emission appears to be a deep red and also dim. The crystals convert this 808 to 1064 and then 532 green. The emission from a pump diode is capable of causing severe eye damage and blindness. For a 50mW laser, this pump diode could be putting out up to 500mW. This is blinding, burning IR power. Do not shine this into the eye! If you aren't knowledgeable on green lasers, just remove the dead module from the laser and put in a replacement from o-like or DX as this is the easy way to fix the laser. It is not easy to do repair surgery on the dead module.
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Old 01-14-2010, 02:21 PM #14
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Default Re: Green laser 50mW problem

Quote:
Originally Posted by gat1994 View Post
Hey guys!

i've got a 50mW green laser. it was working fine until one day all of a sudden it lighted up and at my next attemp to light it up it wouldn't. now when i press the button and look inside through the top of the pen (where the beam comes out) i can see a red ,powerless light but no beam at all

i've tried changing batteries but still nothing. is there a way to solve this problem?

here is a photo:










thanks !!
no chance to repair it. contact the seller to replace one or refund you at a certain level.
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Old 01-14-2010, 09:20 PM #15
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Default Re: Green laser 50mW problem

step one: replace the batteries and try again
step two: try to get a refund
step three: check if the diode still lives, if not replace
step four: check the crystals for dark burnt spots and move around them.
step five: take a hammer, it's dead anyway.
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