3D laser engraved crystals

[nvmextc]

I've always wondered how they made these, the other day I thought it would have something to do with lasers, I just found this video http://www.livevideo.com/video/7AC708782C5949008A44264D5FE5E3E1/3d-laser-engraving.aspx
Wonder how strong the green is to do that

 

[ch053n]

Kinda funny..

I've never ever seen those pics or video, but still i figured out instantly how its made.

 

[ch053n]

calibrating, focusing and timing in all 3 axiz

 

[DayOfShadows]

That was behind protective glass, so there no tell how powerful it really is :

 

[ch053n]

true

 

[Ace82]

They actually use DPSS 532nm for that? I would have thought it was IR or UV.

 

[nvmextc]

Heres another link that goes into more detail, it looks like IR in this one http://au.youtube.com/watch?v=wFDjiWwDdhE

 

[Switch]

LoL, I have one of those with my face engraved in it ;D The green must get absorbed pretty well, but not well enough to be stopped by the surface :-/
And they're not really crystals, just glass or plastic.

 

[Cyparagon]

"crystal" sells better than "block of plastic"

 

[Switch]

"crystal" sells better than "block of plastic"

I figured that much ;D It's not like the public will know the difference anyway.But at least we could use correct terms on a science forum. :-/

 

[Meduza]

So it is basically a pulsed high-powered laser with a relatively thick beam passing trough a lens with relatively short FL and then directed into the "crystal" with a galvo mounted on the Z-axis of a 3-axis CNC-controlled portal?

Anyone have any idea about how many watts?