Knife edge followed by expander? Anyone try that here?

[Alaskan]

Just want a low divergence spotlight, the lower the divergence and the higher the power the better. I had not seen that video before and I've thought about doing the same thing myself, but I don't think I'd be using it where I could accidentally flash someone with it like he did when it went too low!

Edit: Can someone please help me understand those staggered diode positions in the photo of that block?

http://box349.listingfactoryhost.ne...le/images/d46f7f37829e4e28844cd206b_large.jpg

 

[logsquared]

Edit: Can someone please help me understand those staggered diode positions in the photo of that block?

It allows you to knife and stack 4 beams like this-
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The height spacing is critical and depends on the diode and lens used.