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Old 05-03-2011, 03:22 AM #1
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Default Built-in Arctic Beam Expander Concept

This idea came to me in class today and I drew it out:



Image didn't come out great, but you should see the basic theory. Here's a transcript:

Quote:
Let's look at a cross-section of the Arctic. This is not to scale, or accurate.

[Diagram with regular 1.5mRad beam.]

Cool. Regular laser beam. But... the focusing lens?! Check this out:

[Diagram with defocused collimator feeding into longer FL lens, yielding expanded beam.]

The FL on the standard burning tip likely is not right. But if you get the right lens, you might get a built-in beam expander!

[Awesome smiley firing a laser out of his brain tumor labeled with a laser warning triangle.]

...am I crazy or should this work?
I prettymuch know this will work with the right FL lens on the output side, but I have no Arctic to test with. Anyone have an Arctic and a lot of optics?

-Trevor


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Old 05-03-2011, 04:02 AM #2
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Default Re: Built-in Arctic Beam Expander Concept

Funny you posted this, im trying to make an adapter for some
lasers im putting up..

You can expand with the stock lens, just have to find a suitable
secondary, preferably coated..

It would be a matter of 'tweaking' from there..
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Old 05-03-2011, 04:07 AM #3
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Default Re: Built-in Arctic Beam Expander Concept

Nice. I bet your notes look better than mine.

-Trevor
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Old 05-03-2011, 09:52 PM #4
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Default Re: Built-in Arctic Beam Expander Concept

Actually, I dont make notes.. I got straight to the lathe or mill...

Probably take me an equal amount of time to draw it as it
does to cut it. Granted it something simple.. cant say the same
for the more complex.
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