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Damaged Lens

XiteR

XiteR

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after further testing i found out that the lens is un use able. So we go for plan B which is the use of another lens from a cheap laser. But there is a new problem with that solution. the cheap 5mw laser has a pen shaped host & i tried every thing to open the head/tip of the laser (where the lens is) but with no luck !! :(
any ideas how to open it up ??

Pen shaped host (Very common)


The unopen able tip/head of the laser


:thanks:
 
Last edited:





Benm

Benm

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Those can be pretty hard to remove - i suggest placing the silver colored part in a vice, and rocking the black part loose... it seems there are plenty of toolmarks on the tip already, so not much to worry about in the vise!
 
jeffreythe00

jeffreythe00

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Sort of off topic here... but I have some acetone here and I would not DARE put it on a lens. The problem is acetone will eat through acrylic and some cheap lasers like this one "may" use an acrylic lens. Are all DPSS lenses glass? I really am having a hard time beliving they are.

Also another question would be. Would an acrylic lens be composed of some other type of acrylic not prone to acetone eating through it. I understand some very high powered green lasers can be cleaned with acetone but these optics need to be glass.
 
rocket689

rocket689

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XiteR said:
after further testing i found out that the lens is un use able. So we go for plan B which is the use of another lens from a cheap laser. But there is a new problem with that solution. the cheap 5mw laser has a pen shaped host & i tried every thing to open the head/tip of the laser (where the lens is) but with no luck !! :(
any ideas how to open it up ??

Pen shaped host (Very common)


The unopen able tip/head of the laser


:thanks:
Click to expand...

Drill a hole in a block of wood that is slightly smaller than the diameter of the head. Cut the block in half through the hole. Put the wood blocks in a vise. Put the laser head in the now smaller hole. Tighten the vise and rock the pen back and forth. This should not damage the head. :beer:
 
XiteR

XiteR

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after getting a vise i opened the laser up but the lens is still trapped inside ! i tried every thing buts nuthing came make it come off


any ideas how to get it out ?
 
jcranmer

jcranmer

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As qumefox suggests, the slot you see in the lens is where you would put a screwdriver so you can unscrew it.

Just make sure you don't scratch the lens in the process or you will be right back where you started.
 
rocket689

rocket689

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jcranmer said:
As qumefox suggests, the slot you see in the lens is where you would put a screwdriver so you can unscrew it.

Just make sure you don't scratch the lens in the process or you will be right back where you started.
Click to expand...

I use a small spanner or a sturdy tweezers to turn the lens.

Sometimes, the brass nut has threadlocking compound on it, as well.
 
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