I was just adjusting the focus on my laser and it turned off, I thought it was a bad connection so I checked everything and it was all good then I looked into the laser and clicked the button real quick and saw a red light way inside. Anyone know whats wrong or do I need to buy another laser?
Broken laser?
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CliffS
Newly Enlightened
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DaFiend said:
DAMN IT! DON'T LOOK INTO THE APPERATURE!!!!!!!!
Is this one of those adjustable red lasers? if it is, i'd say just get a new one. Or better yet, a GREEN one!
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If hes going to look into it, I'd say get a class 1a laser /ubbthreads/images/graemlins/smile.gif
DaFiend said:
DAMN IT! DON'T LOOK INTO THE APPERATURE!!!!!!!!
Is this one of those adjustable red lasers? if it is, i'd say just get a new one. Or better yet, a GREEN one!
[/ QUOTE ]
If hes going to look into it, I'd say get a class 1a laser /ubbthreads/images/graemlins/smile.gif
PhotonWrangler
Flashaholic
Several years ago when laser diodes first became available to the general public, I purchased a 5mw 650nm red LD for an exhorbitant price. I also purchased a collimator assembly separately from another vendor.
I mounted the LD in the collimator and powered it up - nice bright but defocused red beam. So I decided to adjust it while it was running, but because I hadn't tightened the diode mount adequately, the diode itself had rotated within the assembly briefly while it was powered up and I was fooling around with the lens.
This introduced multiple power glitches into the diode and ultimately blew it out. It then became a very dim, plain old red LED, weakly putting out regular non-coherent light.
And this was after I only had the diode in my hands for less than 30 minutes! Damn. /ubbthreads/images/graemlins/banghead.gif
The moral of this story: handle LDs gently while they're powered up.
I mounted the LD in the collimator and powered it up - nice bright but defocused red beam. So I decided to adjust it while it was running, but because I hadn't tightened the diode mount adequately, the diode itself had rotated within the assembly briefly while it was powered up and I was fooling around with the lens.
This introduced multiple power glitches into the diode and ultimately blew it out. It then became a very dim, plain old red LED, weakly putting out regular non-coherent light.
And this was after I only had the diode in my hands for less than 30 minutes! Damn. /ubbthreads/images/graemlins/banghead.gif
The moral of this story: handle LDs gently while they're powered up.
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well i just had an idea I checked my digi cam with a remote control to see if it can see IR light and it can. So I aimed my greenie at my cam and a saw a very dim white light coming out like 100 times dimmer than my remote control. Donno if this means anything but there you have it.
well I just ordered 2 new ones from abeland off ebay wander if I broke this one, the first one he sent me was broken so he sent a replacement and it broke after tryin to focus it better so I donno. Guess Ill just have to make the next 2 last longer heeh
kongfuchicken
Flashlight Enthusiast
The little red light is the lower end of the 808nm radiation... There's a lot of invisible IR in there so don't look.
Let's hope the IR filter did its job or you might get some irreversible damage.
Let's hope the IR filter did its job or you might get some irreversible damage.
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FNinjaP90 said:
When my laser died and stopped putting out green, I also saw a little red when I stared down into it. My eyes are fine. My camera didn't see anything either.
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Did u use night-vision ??
Not all cam can notice the IR lihgt !!
FNinjaP90 said:
When my laser died and stopped putting out green, I also saw a little red when I stared down into it. My eyes are fine. My camera didn't see anything either.
[/ QUOTE ]
Did u use night-vision ??
Not all cam can notice the IR lihgt !!
Come on !
Looking into the aperture of any laser and then powering it up comes pretty close to insanity IMHO. One could say it is completely your business what you are doing with your eyes, and that is of course true, but please refrain from posting such silly things on CPF in order to avoid others who do not have a clue to go down the same path. The minimum requirement of discussions of such topics would be a clear warning statement in the posts describing such actions.
Otherwise this thread will be closed.
bernhard
Looking into the aperture of any laser and then powering it up comes pretty close to insanity IMHO. One could say it is completely your business what you are doing with your eyes, and that is of course true, but please refrain from posting such silly things on CPF in order to avoid others who do not have a clue to go down the same path. The minimum requirement of discussions of such topics would be a clear warning statement in the posts describing such actions.
Otherwise this thread will be closed.
bernhard
Point the laser at a non-reflective surface that will still register light fairly easily. (Like matte white paint), provided the laser is a relatively low power laser (<5mw) this will be safe. You can use the point (Or lack of a point) that the laser produces to
Tomsky4u
Newly Enlightened
Which is better to purchase? A red or Green Laser?
deezdrama05
Enlightened
I have a quick question, I had my laser apart and was trying to aligne the mca, I had the brass body pointing towards the ceiling with the brass disk on top(disk with the mca and ir filter)and was moving the disk around while powered on looking at the green beam unfocused trying to get good alignment, i could see the lense under the ir filter was glowing red but I always looked at it from the side never down the barrel, is this still unsafe? it seemed the next morning my eyes were a little swolen and stinging a little but it just may of been me being paranoid,but im scared to mess with it any further now and just have a pile of pointer parts sitting around. Was this unsafe or was I ok as long as viewing it from the side? Does anyone know how much shipping is for them laser goggles from uk military on ebay to get shipped to the states?
200mW of infrared hitting your eyes. not good at all. Those ebay goggles are fine for 532nm, but they haven't been tested for infra red by anyone here yet. Depending on the wavelength of the IR i would have to say in theory that they protect from some infrared, depending on the spectrum, because the miltary would mainly use IR lasers for targeting etc. Any one else with thoughts on this or able to actually test the theory?
Theres a pic somewhere of a of a green and a IR laser going through some goggles. The green gets almost completely blocked although the IR gets through relatively un-harmed.
IR red and green are very hard to block together since they are near opposite colours. A filter would need to be two filters fused together to provide adequate protection.
Once again I /ubbthreads/images/graemlins/banghead.gif /ubbthreads/images/graemlins/Christo_pull_hair.gif over the mis-respect of IR... You should not be seeing a dull red glow /ubbthreads/images/graemlins/jpshakehead.gif at all.
Under an IR camera that dull glow will look like a luxeon LED at close range.
IR red and green are very hard to block together since they are near opposite colours. A filter would need to be two filters fused together to provide adequate protection.
Once again I /ubbthreads/images/graemlins/banghead.gif /ubbthreads/images/graemlins/Christo_pull_hair.gif over the mis-respect of IR... You should not be seeing a dull red glow /ubbthreads/images/graemlins/jpshakehead.gif at all.
Under an IR camera that dull glow will look like a luxeon LED at close range.
