Laser filtered through irregular pentaprism, with a regular rotation, makes stunning fractal optical effects.
VIDEO1:
YouTube - Red laser pointer beam through crystal effects
VIDEO2:
http://www.youtube.com/watch?v=abvKA56SDTo
Laser through optical fluids, makes stunning plasma animation...
This is one of the design i made, kinda of crafty, but i really think you get 99,9999% out of it :)
The black termination, would be a legue of cast iron and black stone.
As long is quite centered, the heat would be properly diffused.
With all the respects on your design (why dont you try by yourself?)
I think that a DIRECT laser beam, reacts (as your design) as a bouncing ball, for a percentace of its power, let's say..80%... but when it bounce the first time to any matte surface, i think that it mostly reacts like a...
Yes, probably. I do not have the instruments to check the intensity of the diffuse light returning from the tube, but is very very mild and eye tolerable, i was able to dump a spartan, and while dumped, take off the goggles, without getting any kind of disturb, the room was kinda dark. So, just...
Spartan 1W long cycle dumped
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Intense close-up cycle with 400mw green + match lit
If you need further information about my laser dump, i still have a couple of them for sale:
http://laserpointerforums.com/f39/laser-dump-sale-60609.html
None of both parts that you underlined takes the direct laser beam, they just take the diffuse light back.
The EXPENSIVE part, that is a legue of blackstone and cast iron, designed for high temperature that i requested from an industry right here, is exacly the expensive part for the aluminium...