Scratched Lens, Where to find new one?

[djabi90]

Well, I recently tried cleaning my lens for my 1000mw laser pointer with a q-tip and alcohol. Little did I know that the Q-tip had some plastic sticking out of the cotton ball. Now it is badly scratched, and I cant seem to fix it. :yabbem: Anyway I can find a new one? Here are some pics.

Any help will be appreciated. THank you!

 

[3zuli]

for example, this one should be fine: AR coated glass lens for 405-445nm [M0004] - $12.99 : Modwerx Shop

 

[Bionic-Badger]

Really? That's the lens they use in those things? You'd think it'd melt long before you'd be able to scratch it.

You can get 445/405nm lens replacements at Aixiz.com, O-like (buy it with the module), or at the site listed above.

 

[djabi90]

Yea I know. Cheap-o laser but hey it's fun with projects. And thank you guys. I'll be sure two buy at least two knowing how they got melted. Hope one day it doesn't catch on fire on me. :scowl:

 

[djabi90]

Would this work?
AixiZ Blue Laser Glass Lens for 405-455nm, AixiZ

 

[Bionic-Badger]

Yeah, that'll work, and it'll probably improve your output power because it's a better lens than those plastic ones.

I do hope you're planning on getting some goggles, because it's not fun focusing them without them.

 

[djabi90]

Ok thanks!
And yes I always have some googles on with me when trying to focus it!!

 

[anselm]

LOL an Aixiz plastic lens.

Yeah, those 405 and 445 glass lenses will be just fine.

 

[Bionic-Badger]

LOL an Aixiz plastic lens.

Yeah, those 405 and 445 glass lenses will be just fine.

Maybe when he was cleaning it, the plastic was molten.

 

[anselm]

Actually OPs picture looks to me like the lens is simply still wet with alcohol.
But I believe him when he says it's ruined.

I was facepalming over the chinese shop's decision to include plastic lenses in these....

 

[steve001]

Too replace the lens you'll need to determine the focal length of the old lens.
You can do that by holding the old lens above something like print.
See how much you can magnify the print without going out of focus.
Measure that distance in millimeters

 

[Bionic-Badger]

Too replace the lens you'll need to determine the focal length of the old lens.
You can do that by holding the old lens above something like print.
See how much you can magnify the print without going out of focus.
Measure that distance in millimeters

Well, assuming that the original manufacturers used the same cheapo lenses you find in Aixiz modules, he should be able to just guess and check the focus with the new lens.

 

[qumefox]

I carry the same 3 element 445 glass lenses as aixiz etc for $7.50 each.. Everybody seems to forget this. heh.