co2 ray gun

[trussmonkey25]

Deleated. found answer

 

[Cyparagon]

You're just full of bad ideas, aren't you?

 

[Things]

And money, obviously, you're already talking hundreds in lenses and combining mirrors to even get started.

 

[Things]

You aren't going to get a lens that'll give you a 30ft focal length. 95% of ZnSe lenses you'll find will be somewhere between 200 and 20mm.

 

[trussmonkey25]

You aren't going to get
a lens that'll give you a 30ft focal length. 95% of ZnSe lenses you'll find will be somewhere between 200 and 20mm.

Found one. F/15 meters. another for ten
inches. I ordered the latter. . the one i have now is only f/3"

 

[Seoul_lasers]

Found one. F/15 meters. another for ten
inches. I ordered the latter. . the one i have now is only f/3"

Trying to make molten glass I see.

You need all your optics to be ZnSe or simular longwave IR transparent or you'll have a real mess on your hands.

 

[trussmonkey25]

It is i found it on ebay.. theres lots of different ones there. o seen the f/15m from an isriali supplier. the f/10" is comming from austailia

 

[bdgreenb]

f/15m .... w00t is that pretty much the lens they use on the anti mortar laser?

 

[Hemlock_Mike]

Using a -Fl and a + Fl in an expander,
It will go over 30'
hmike

 

[Cyparagon]

15 meter focal length? I call bullshit.

 

[Hemlock_Mike]

The longest Fl ZnSe lens I have seen is 5".
That's what the local machine shop uses on their
NC cutters. That lens is about 1.5" Dia.
A good expander might focus it at 15M.
HMike

This is what one of my expanders looks like.

 

[trussmonkey25]

Thats the way Ill go.... with f- to f + gallilaian style . plenty. Of f- lwnses available for fifty or less clams US$