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PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub






diachi

diachi

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Alaskan said:
Another, really great photo's too

* 5000mW * 5 WATT blue green ARGON AR+ COHERENT LASER with OPTICS! | eBay
Click to expand...


Better suited to a museum/large paperweight. That's a really old head/system, from the late 60s/early 70s IIRC - one of the first Ar ions from Coherent. Graphite tube, not like the more "modern" ceramic tubes - and it's not one "piece" either, it's a bunch of graphite disks stacked on top of each other... Probably dead. Looks nice and clean at least... PSU may be useful. There are some threads about these and similar on PL.



That's a good deal on the Reliant if it's working - those are nice little Argon lasers, being self contained and such.
 
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diachi

diachi

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

H2Oxide said:
This one's been listed for at least a year. He has a nice whitelight Ar/Kr listed too.
Click to expand...


I remember seeing it further back than that, unless it was the same model in the same condition listed by someone else. Not many of those around... See my other response though...
 
CaliKirk

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Pretty nice 173mw Laserglow 473nm labby, hasn't had any bites yet. I was very tempted but unfortunately don't have the cash right now, if it goes for $315 that's a pretty damn good deal and i'll kick myself, but once I start bidding, i'm in it to win it :)

Laserglow 473- 173mw
 
Alaskan

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Alaskan said:
Is this a beam expander? Might be of use to someone here:

Unknown Laser Lens. Beam Expander (Collimator?) ~ 35 mm. ~ 500-700 nm wavelength | eBay
Click to expand...

Update:

From the seller

New message from: vladis589 (429Turquoise Star)

AR Coating looks "Blue"(attached picture), so it'seems to be suitable
for green light and not for IR.

Please take a look on attached pictures.
I've measured the lens transmittion spectra again
(green line on "Grapf01") and also microscope slide glass
(purple line). 100% transmittion - at 800 nm.
Click to expand...

I would like to attach the graph, but ebay makes the resolution too low, so I have asked for him to email a copy to me I can post here.
 
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DashApple

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

States 532nm 0.5mW Max , Its mainly a Holmium YAG laser @ 2120nm 400mJ pulse at 160uS according to the lable
 
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Alaskan

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Isn't that 2,500,000 watts of peak power from the Ho YAG? OK, I see the 532nm has .5 watts average, but I wonder at what pulse width? Perhaps it is just CW?
 
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DashApple

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Its just how the label lists it , I think youll find its just a low power green and a pulsed Ho : Yag , it would state if the 532nm was pulsed like the Ho : YAG but as it dosent ,

Edit : it dose state in the label the 532nm is CW
 
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Alaskan

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I see it now

Screen%20Shot%202016-11-02%20at%208.05.40%20PM.png
 
diachi

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Alaskan said:
Isn't that 2,500,000 watts of peak power from the Ho YAG? OK, I see the 532nm has .5 watts average, but I wonder at what pulse width? Perhaps it is just CW?
Click to expand...


160uS at 0.4J is 2,500W peak.
 
Alaskan

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

That seems more reasonable for that long of a pulse, I must have done my math wrong.

Edit: yep, I used nano-seconds instead of microseconds, that's why my figure was wrong.
 
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Alaskan

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Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I can't buy it, but if I lived close enough I very well might.
 
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