Built-in Arctic Beam Expander Concept

[Trevor]

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:

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

 

[JLSE]

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..

 

[Trevor]

Nice. I bet your notes look better than mine. :na:

-Trevor

 

[JLSE]

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

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.