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Old 04-21-2016, 05:52 PM #2353
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by styropyro View Post
Interesting B+W 473nm unit with some form of spectrometer:
Tek Blue 473nm Industrial Laser Spectroscopy Device Optical Cord 0 5M | eBay
Seems to work off some new science particle ...

"Used in working condition, lights blue 473nm fotons"



Last edited by OVNI; 04-21-2016 at 05:53 PM. Reason: Forgot obligatory silly face.
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Old 04-21-2016, 06:09 PM #2354
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Quote:
Originally Posted by OVNI View Post
Seems to work off some new science particle ...

"Used in working condition, lights blue 473nm fotons"
Don't know whether to sleep on em or use em for light lol

Last edited by VirtueViolater; 04-21-2016 at 06:10 PM.
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Old 05-02-2016, 09:23 AM #2355
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

The Gball on the nubm07e makes a 25mm x 50mm spot at 5 meters, rather huge compared to the nubm06 that makes a 25mm x 7mm line through it's Gball at 5 meters.

The 07e via of it's Gball lens produces a spot over 700% the area of the 06.

However the entire nubm07e block could make a super bright blue searchlight.

Drivers, lots of batteries, tons of waste heat to get rid of, well the price is at least coming down some, it could stand to come down a bit further but it's headed the right way.

Nichia NUBM07E 465nm 28W High Power Multi LD Bank Blue Laser Diode Array | eBay
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Old 05-05-2016, 01:47 PM #2356
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

http://pages.ebay.com/link/?nav=item...823761&alt=web
Very good price on a Laserglow green laser pointer. This is essentially a leadlight, and will actually output near 5mW unlike the eBay retina toasters. Would make a great presentation pointer or a slick host if the buyer wanted to gut it.

Also, this:
http://pages.ebay.com/link/?nav=item...831002&alt=web
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Old 05-05-2016, 05:07 PM #2357
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

JDS Uniphase Laser Model 2212 10MLMA | eBay

there are two of them they will ship I have contacted them. I am going to purchase one there are one more multi line and there is a single line up as well
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Old 05-19-2016, 03:41 AM #2358
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

What do you all think of this offering for a Ocean Optics spectrometer?

Ocean Optics S2000 Spectrometer Works Great I Just Used It Today | eBay
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Old 05-19-2016, 03:51 AM #2359
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I saw it several days ago and I think it is a very old one with a limited spectrum. It also need an interface card to run it on your computer, so you will have that expense as well. It has a #1 grating and if memory serves me correctly, that grating is limited to the higher wavelengths.

Edit: if you want it I'd wait until the auction is over an offer the guy less for it.
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Old 05-19-2016, 04:53 AM #2360
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

At some point, I'd like to have a spectrometer, but not one limited to one end or the other of the vis and IR spectrum.
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Old 05-19-2016, 05:08 AM #2361
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Yeah, I've been looking for one for a very long time before I finally pulled the trigger. I can't wait to get it back as I didn't have the accurate enough light sources to calibrate it myself. I want it as accurate as I can possibly get it.

Edit: I actually got it backwards. The #1 grating is for use in the UV spectrum.
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Old 05-24-2016, 12:18 AM #2362
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Uvex Laser Safety Protection Glasses OD 7 190 380 Made USA | eBay

Some real UVEX DVO laser safety glasses. I've got some pairs of these and they're great. Comfortable and fit over glasses well, but not very stylish.

Very expensive new, and they've got protection for both the visible and ir components of green DPSS.
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Old 05-24-2016, 01:34 AM #2363
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Alaskan View Post
What do you all think of this offering for a Ocean Optics spectrometer?

Ocean Optics S2000 Spectrometer Works Great I Just Used It Today | eBay
For $500 you can get a good one from science surplus with a 365-910 (2nm) or 365-1100nm (3nm)

Spectrometers - Science-Surplus

If you can calibrate your own, you can get if for $199.00

Compact Fiber Coupled CCD Spectrometer Kit DIY | eBay

Mariomaster and a few others have them, they are decent. Mario calibrated his own, so if I remember correctly his is off a little bit at some points in the spectrum but only a few nm

I don't know the specs on the Ocean one but from the other posts it isn't full spectrum, OTOH it might have better rez.
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Old 05-24-2016, 02:58 AM #2364
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

I personally wouldn't want a spectrometer that is accurate to 3nm. But, I suppose if one can live with that and also has the necessary light sources to calibrate it themselves, it isn't the worst deal I've seen.
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405nm Laser Pointer 45mW
405nm C11 700mW
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Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 1.75 watts SkyRay Gifted
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445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
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Old 05-24-2016, 06:01 AM #2365
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Thanks for spectrometer info folks, one of these days I will pull the trigger on one. Here's some optics which might be of interest to someone, he is taking offers: Laser Optics Mounts Mirrors Lenses System Lens Lab Newport | eBay - Anyone know what this might be from and why the steerable optic?

Edit: I'm adding this item of interest too: RGB-3000mW-TTL-System Laser: http://www.ebay.com/itm/RGB-3000mW-T...-/141956697605

Has anyone in this group purchased one of these? I've heard some of the cheaper China produced combined laser RGB white producing modules didn't last very long. Looking at the photo's from the listing, the unit is fairly small and if the drivers were taken off the top and moved in-line with its length, this might fit into a rather large, but manageable laser pointer. The Fenix TK75 flashlight might make a good host platform for this with its 3 inch diameter output, I think... if you could find someone like Ehgemus or CDBEAM777 to modify one for you. You can see a photo of a knife edged TK75 Ehgemus built for me in my avatar photo's. Here's a ebay link to the TK75: http://www.ebay.com/itm/Fenix-TK75-2...-/222091225489
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Old 05-25-2016, 04:26 AM #2366
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by Alaskan View Post
Anyone know what this might be from and why the steerable optic?
It's a pair of scanning galvonometers. It could be from an engraver, a confocal microscopy system, a projector, or several other esoteric devices.

Quote:
Originally Posted by paul1598419 View Post
I personally wouldn't want a spectrometer that is accurate to 3nm.
3nm is the resolution. The accuracy would be closer to +/- 1nm. The "spike" in the graph is 3nm wide at minimum, but you can still look at the peak of this spike. Each of the pixels map to about half nm, but the resolution isn't listed as half nm because of some spillover to other pixels.

Quote:
Originally Posted by icecruncher View Post
If you can calibrate your own, you can get if for $199
No. Not quite. Calibration is easy if you have basic knowledge of 3rd degree polynomial regression lines, and a CFL or other known-spectra lamp. The one you've linked is one that also needs alignment. Alignment is VERY difficult and literally takes several hours of patiently tweaking screws. I've aligned one for lazeerer, and it's a bitch.
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Last edited by Cyparagon; 05-25-2016 at 04:27 AM.
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Old 05-25-2016, 04:34 AM #2367
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Cant give Techhood high marks for proof reading 16,000 mW of BLUE?? really?
First time I saw Techhood I found gross errors- sent messgs- did thank me BUT never made the corrections.. They and Lazylands are killing USA based companies selling the same basic line. I have doubts it is spec- and heard also of short lives in their RGBs.
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Old 05-25-2016, 04:51 AM #2368
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Default Re: PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please

Quote:
Originally Posted by hakzaw1 View Post
Cant give Techhood high marks for proof reading 16,000 mW of BLUE?? really?
First time I saw Techhood I found gross errors- sent messgs- did thank me BUT never made the corrections.. They and Lazylands are killing USA based companies selling the same basic line. I have doubts it is spec- and heard also of short lives in their RGBs.
if only there was a platform similar to aliexpress/ebay but specifically for the laser hobby community.... soon
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