Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Just Another Yellow HeNe Thread






Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
H2Oxide said:
Sure, I'll go do that now and edit this post when I have 'em. This is my first red HeNe, so I can't tell if the wavelength looks different or not. And again, my iPhone's camera is really crappy, so it might not be picking it out correctly. (still looks pretty orange IRL though)

EDIT: Whelp, I tried but the beam just shows up as a massive blob of yellowy red that covers half the screen, and I don't think that would be very helpful. However, I have another red HeNe coming (what can I say, I've been bitten by the gas bug :D) so I can tell you if there's a difference in a few days. Although the pictures don't look that far off from the real deal, It might just be my eyes, but it does look pretty orange.

EDIT 2: Well, apparently my goggles act as some sort of beam splitter, so I was able to get a really dim beam from the HeNe. Pic 1 is with normal lighting, pic 2 is with lights off.

laser on the left is a red pointer, right is HeNe. Also, regarding the Green HeNe, it's beyond repair, whatever is loose inside the tube is definetly glass, and I guess it "slides" rather than rolls. Wanna guess what it is? :D
Click to expand...

Ahh, shame about the Green, but don't scrap it, those mirrors are useful!

Ok, thanks, that's normal 632.8nm. Idk what was with your camera in that first picture on the crystal, haha. Damn near gave me a heart attack. $100 594.1's happen rarely, but a 612... that's like finding a unicorn that farts platinum dust, pisses petroleum oil, and craps $100 bills.
 
ultimatekaiser

ultimatekaiser

0
Joined
Mar 10, 2013
Messages
2,918
Points
113
Excellent find! Congrats on the 594.1 HeNe... shame the green was broken...though frankly they can be had for just a couple hundred. its the orange ones and the window tubes that are hard to get! :)
 
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
Actually Sam has a green or two for only like $50, just need to find an adequate power supply.
 
ultimatekaiser

ultimatekaiser

0
Joined
Mar 10, 2013
Messages
2,918
Points
113
Sigurthr said:
Actually Sam has a green or two for only like $50, just need to find an adequate power supply.
Click to expand...

I was talking NOS ones... The only tubes from Sam I've seen are a few hundred. Or a small one for 100. Merideth's are 195 for just a tube...

H2Oxide said:
Man, that's tempting. But I can't as I'm saving up for a really big laser :D.
Click to expand...

Oohh the suspense :)
 
Last edited:
H2Oxide

H2Oxide

0
Joined
Dec 11, 2014
Messages
929
Points
83
Sigurthr said:
Actually Sam has a green or two for only like $50, just need to find an adequate power supply.
Click to expand...
I see that he also has a 1-b green tube as well. Is green the only color you can squeeze out of those?
Sigurthr said:
but don't scrap it, those mirrors are useful!
Click to expand...
The last green HeNe I took apart's mirrors were destroyed. It's almost like someone stuck a thin steel rod into the aperture and started thrusting it up and down as hard as they could. There were a TON of dust like glass particles in there. Strange too, as when I received it it sounded intact. And I'm super careful with them :thinking:
 
Last edited:
ultimatekaiser

ultimatekaiser

0
Joined
Mar 10, 2013
Messages
2,918
Points
113
H2Oxide said:
I see that he also has a 1-b green tube as well. Is green the only color you can squeeze out of those?
Click to expand...

yeah. the green mirrors don't really work for other colors. But they're definitely not an ameteur's laser. they're quite touchy little buggers. They have to be utterly pristine, and you need a good mount and mirrors to get anything out of them. but once you do they're quite unique and utterly spectacular to see working...though Melles Griot doesn't even acknowledge their existence however, despite being made in 2012...

IMG_1885_zpse3909ead.jpg


H2Oxide said:
The last green HeNe I took apart's mirrors were destroyed. It's almost like someone stuck a thin steel rod into the aperture and started thrusting it up and down as hard as they could. There were a TON of dust like glass particles in there. Strange too, as when I received it it sounded intact. And I'm super careful with them :thinking:
Click to expand...

It probably lost a fight with a concrete floor more likely. hard to say...the non-red tubes are quite fragile and have a far shorter lifespan. Green in particular is actually the hardest to produce of the 4 visible colors. It's gain is only about 1/23rd that of red, so even a minor flaw can keep it from working properly.
 
Last edited:
H2Oxide

H2Oxide

0
Joined
Dec 11, 2014
Messages
929
Points
83
ultimatekaiser said:
even a minor flaw can keep it from working properly.
Click to expand...
Mine had a pretty huge minor flaw:

It was still attached when I took it out, then it just kinda fell off. Which leaves me wondering how it got chipped on both sides.:thinking:
EDIT: I can also confirm that the other one was in fact 633nm.
 
Last edited:
Pman

Pman

0
Joined
Nov 28, 2012
Messages
4,447
Points
113
I think the key word here is "just". No thing as "just" another yellow laser;)
Congrats
 
argon

argon

0
Joined
Jan 13, 2010
Messages
72
Points
8
Hello H2Oxide

I haven't been here for a while, so I saw your thread only now.
Congrats to the buy of these lasers. Just the yellow one is the money worth I think ;-) I'm pleased you got the ebay-offer :wave: Enjoy your beams!

Best regards
argon
 
You must log in or register to reply here.




Top