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Need small lens for laser pointer

kirkg

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Joined
Jan 28, 2009
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Hi,

I'm looking for lenses for a do it yourself aser pointer that are less than or equal to 6mm in diameter. I measured the lens inside a Aixiz plastic housing and they are ~7mm. Can I find a smaller one?

Also, does anyone know why the side of the Aixiz lens (in its black plastic screw housing) that faces the laser diode is covered with black plastic with just a small hole in the center for light to pass thru?

:p
 





Kenom

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Joined
May 4, 2007
Messages
5,629
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I've got a few lenses that might be small enough. The problem is, there is no threads on the lens holders themselves. You can find 6mm modules on ebay.
 
Joined
Nov 22, 2008
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179
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PLANO CONVEX LENS $5 bucks
I bought one of these myself, nice glass lens, AR coated.

http://www.allelectronics.com/make-a-store/item/LNS-49/TINY-PLANO-CONVEX-LENS/1.html

image_product.height.500;width.500;modified.1207857168.LNS-49.jpg
 

kirkg

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Joined
Jan 28, 2009
Messages
9
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Thanks for the suggestions. I realize that at this size I probably cannot get a lens with threads. Thats ok. I'm just going to focus it then glue it. Also, I will be using the lens for burning- so I assume I want a glass lens as I don't want to have to replace a plastic lens.

Thanks,


Kirkg

:)
 




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