co2 ray gun

• Feb 11, 2013

• #1

trussmonkey25

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Deleated. found answer

 

Last edited: Feb 12, 2013

• Feb 12, 2013

• #2

Cyparagon

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

 

• Feb 12, 2013

• #3

T

Things

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

 

• Feb 12, 2013

• #4

T

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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.

 

• Mar 2, 2013

• #5

trussmonkey25

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Things said:

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.

Click to expand...

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

 

• Mar 3, 2013

• #6

Seoul_lasers

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trussmonkey25 said:

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

Click to expand...

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.

 

• Mar 3, 2013

• #7

trussmonkey25

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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

 

Last edited: Mar 3, 2013

• Mar 5, 2013

• #8

bdgreenb

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

 

• Mar 5, 2013

• #9

Hemlock_Mike

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

 

• Mar 5, 2013

• #10

Cyparagon

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15 meter focal length? I call bullshit.

 

• Mar 5, 2013

• #11

Hemlock_Mike

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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.

 

Last edited: Mar 5, 2013

• Mar 5, 2013

• #12

trussmonkey25

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