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Old 10-07-2015, 02:05 AM #17
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Default Re: DPSS blue on DX?

Hahaha, this would be amazing if it works out. I'm still undecided on what I think the laser this thread is about is. No way it's dpss for under $10, probably a 450, like apocalypse said. Maybe they copypasta the specs from a different laser?


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Old 10-07-2015, 11:27 AM #18
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Default Re: DPSS blue on DX?

Even if it's a 450nm that's a pretty damn good price. You can probably ask for a refund if a green or violet turns up. Please don't forget to keep us posted
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Old 10-07-2015, 01:05 PM #19
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Default Re: DPSS blue on DX?

It could be copy-pasta from another laser, they do that a lot.

It's just the current consumption and mention of overheat that caught my attention.

Maybe it is a 'zombie' 445/450 diode, but running that at 3 amps? Perhaps they got the current totally wrong, but then why would it overheat?

Anyway, i'll probably find out in a few weeks and post the results


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Genius! Chinese roulette! We find the cheapest mass produced laser we can find, and purchase it. The buyer should have an LPM and maybe even a spectro if it's diode, and whoever guesses closest on how long it lasts, it's power, and spectro would get the rep pool! Also, reps by everyone to the buyer.
Hehe.. that's actually a pretty cool idea!
I don't have a calibrated lpm at the moment (though it will do relative power), but do have 405 and 445 lasers to compare color against, so if its anything different i'll likely be able to tell. Also, i'll check if it produces 5 dB of sound
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Old 10-07-2015, 01:09 PM #20
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Default Re: DPSS blue on DX?

No one honestly ever believed this would be a solid state handheld, did they?

It won't be a 445 at that price either.

Best case, you get a garbage 405.
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Old 10-07-2015, 01:35 PM #21
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Default Re: DPSS blue on DX?

I'm not so sure it isn't a 450nm. DX isn't know to use fake pictures (or at least wasn't, back in the day) and that picture looks like a 450nm to me.

I have a 450nm pen that I paid about $30 on ebay and that was over a year ago. They have cheaper diode sources that are not available to us.
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Old 10-07-2015, 07:33 PM #22
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Default Re: DPSS blue on DX?

Hmm, I thought it was obvious.

I'm 99% sure they're using a new continuous wave diode pumped solid state dye laser technology (not released to the public until now)
tuned to 470nm, with the dye being C-460 or C-480 dissolved in some sort of photopolymer. I mean, just look at the "Wave Band Range", 450~490nm!
After all, DX does deal with the newest cutting edge technology, and for such an exorbitant price you'd better expect something amazing!

JK, nice find OP!
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Old 10-07-2015, 07:57 PM #23
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Default Re: DPSS blue on DX?

is there any way we could start a "Chinese roulette" Group that plays this game regularly?

I'll take the next one
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Old 10-07-2015, 08:12 PM #24
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Default Re: DPSS blue on DX?

maybe start a social group?
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Old 10-08-2015, 12:33 AM #25
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Default Re: DPSS blue on DX?

Guess we could have a facebook group for something like this

Chances are that people would hit the chinese jackpot quite often though. If you were to buy say 100 random 532nm dpss lasers under $10 each, chances are a few of those would output 100 mW+ at a given temperature. The downside is that others from the same batch probably will not.

As for the chances on a bargain DPSS blue: i don't think it's very likely, but it is possible that some really inefficient modules are dumped on the market since they cannot really compete with direct diode blues apart from applications that require very well defined wavelength and/or low divergence.
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Old 10-08-2015, 01:11 AM #26
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Default Re: DPSS blue on DX?

Quote:
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Guess we could have a facebook group for something like this

Chances are that people would hit the chinese jackpot quite often though. If you were to buy say 100 random 532nm dpss lasers under $10 each, chances are a few of those would output 100 mW+ at a given temperature. The downside is that others from the same batch probably will not.

As for the chances on a bargain DPSS blue: i don't think it's very likely, but it is possible that some really inefficient modules are dumped on the market since they cannot really compete with direct diode blues apart from applications that require very well defined wavelength and/or low divergence.
There are no inefficient module surplus, because there are no 473 modules mass produced...or hardly produced at all, save CNI and JL. Since they are so expensive, if they don't meet spec, the parts are reused, not dumped into the random chinese market. Even the "cheap" 473 styropyro got off DX a while back was a few hundred dollars.
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Old 10-24-2015, 06:21 PM #27
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Default Re: DPSS blue on DX?

Came back to the netherlands after a week, surprise from DX in the mailbox... Sadly, not a very pleasant one.

As I feared it is just a 405 nm laser, and this is marked ob the label as well.

I've just taken a brief look at it, and took some photos. Since it's just a very simple 405 much more investigation doesnt seem worthwhile. The focus cannot be adjusted. They seem to have used a laser module with a boost converter and a solder-bridged push button on that, which seems to be stuck in the front metal piece. This doesn't come apart (easily).

See pictures comparing it to a 8x blue ray diode running 150 mA or so with a properly coated lens. As you can see the beam is pretty horrible, looks like a cheap plastic lens.

Power output is a bit, but not much, under the existing 150 mA bluray, so i'd say in the order of 50 to 80 mW. Wavelength is definitely standard 405nm. Power consumption is 120 mA from the single cell battery (the one i am comparing to is linear driven from 2 cells).

One upside: it does not blow up if you keep it on for 30 seconds, in fact, it doesnt seem to be even warm after 5 minutes.

Guess i will request a refund for false product info (wavelength completely wrong).
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DPSS blue on DX?-unit.jpg   DPSS blue on DX?-pieces.jpg   DPSS blue on DX?-label.jpg   DPSS blue on DX?-compared.jpg   DPSS blue on DX?-dots-compared.jpg  

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Old 10-24-2015, 06:28 PM #28
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Default Re: DPSS blue on DX?

Detail of the buisness end... Imgur: The most awesome images on the Internet
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Old 10-24-2015, 06:57 PM #29
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Default Re: DPSS blue on DX?

That's a pity, but thanks for testing!
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low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

5W Ophir LPM

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Old 10-24-2015, 10:21 PM #30
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Default Re: DPSS blue on DX?

Many guessed what would show up. They bank on people paying that little and not having to give the money back since it's so cheap.
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Old 10-25-2015, 12:45 AM #31
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Default Re: DPSS blue on DX?

I guess so

I just wonder why they copy pasted the specs like power consumption and thermal problems from something completely different.

Taking 120 mA from the battery it runs perfectly cool, and it will not burn out in 30 seconds (in fact, i ran it for 30 minutes and it's fine). Too bad the lens quality results in such a bad dot, otherwise it would have been a decent product for the money albeit grossly mislabeled.

I presume people that know nothing about lasers would be happy with it - feels sold (gave it a good whack, nothing budged) and the -dot- appears blue on paper and such, despite the beam being violet.

Still put in an RMA with DX though as it clearly not what they described. They changed the product photos since i bought it, but the wrong specs are still there.
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Old 10-25-2015, 01:22 AM #32
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Default Re: DPSS blue on DX?

I was curious about this lol thanks for sharing bud
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