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Old 09-05-2007, 12:34 AM #17
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Default Re: HeNe gas laser

NICE !


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Old 09-05-2007, 01:50 AM #18
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Default Re: HeNe gas laser

Quote:
Originally Posted by k-9
scoooore got another scaner not free this time $20 thy were going to
Is that one huge-ass dichro?

You should keep a scanner as is, and see where the UPC output goes, if it's something simple like RS232 or whatnot. I'd mount horizontally into a wall and use the UPC from a favorite book or some other barcode to unlock a door or something.
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Old 09-05-2007, 02:31 AM #19
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Default Re: HeNe gas laser

Can someone post me a link for some info of what exactly a HeNe laser is and how to make/where to purchase one? And please no wikipedia. Thanks.
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Old 09-05-2007, 02:44 AM #20
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Default Re: HeNe gas laser

Check ebay out for decent prices on HeNe lasers - they are Helium Neon gas lasers....The mixture of gasses gets excited by HIGH voltage, and creates coherent light in the lasing chamber, which exits through the end mirror as a nice beam...HeNe lasers really cannot be beat for stellar beam specs !

G !
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Old 09-05-2007, 03:00 AM #21
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Default Re: HeNe gas laser

What can I expect for an output? I know it's a very vague question but is it going to be more money than a greenie when relating to power?
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Old 09-05-2007, 03:03 AM #22
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Default Re: HeNe gas laser

Okay so I found out they seem to be more expensive than green lasers. But anyways what do you need to build on? I see optics and heads and tubes and stuff?
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Old 09-05-2007, 05:57 AM #23
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Default Re: HeNe gas laser

No way - you are looking in the wrong areas then ! HeNe lasers run about $40 each on Ebay man ! Maybe more $$ per Mw than a greenie, but still very cheap !

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Old 09-05-2007, 01:03 PM #24
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Default Re: HeNe gas laser

I have Metrologic 120v complete LASER that cost me $360 in 1980, puts out 2mW .8 mRad divergence. A professional research laser.
It's a HARD seal, it's the BEST!
I'm selling it for $260 inc/shipping US and should run 9000H over tens of years.

I'm working on camera downloads, so expect pics. latter.

Cheap lasers (non hard seal or all used up) last ? month/years MAX.

It's difficult to make a small power supply that puts out 1800v at 5-10mA too, needed if you just buy the raw laser tube w/mirrors attached for these checkout scanners.

You can't lug around the whole check-out scanner easy ether. Remember it's probably not
going to LASER too long. Make sure to ask if the mirrors are epoxied on; that's not good.
How long has it ran? All the optics would be cool to have.
A HeNe running 15,000 hours would be impossible, they don't make em.

Oh, a HARD seal is a glass -metal- glass/mirror anealed weld.

HeNe lasers tubes get weaker graduly till they just glow and then nothing comes out. :'(

SenKat; How old and what kind of seal on your HeNe's? Do you agree with my advice?

Cheers,
Dave [smiley=beer.gif]

I sell the HeNe power supplys for $105. 8-)
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