Topic: Green Laser Pointers *400/600/800/1000/2000MW (Refund if seized) - page 2. (Read 13898 times)

Just to end it with the lack of information. Just zero, except the price.

The one dude that ordered the 2W one got a tracking number. I pmed him and he told me it's moving along. So either he's getting a laser or he's getting an empty box. Also, I did see campsis say he was selling his account. I wonder if it has a new owner. He didn't reply to my pm when I asked if we could do escrow for the laser.


EDIT: Two users have "bought" lasers from him:

https://bitcointalksearch.org/user/btcfarm-354568

https://bitcointalksearch.org/user/stabikas-352322

Both have <5 posts. I'm so glad I didn't purchase this dude's laser. All of you people who were warning us about the dangers of these class 4 lasers did more than just keep our eyes safe, you kept our wallets safe lol. Thank you.

Sorry for those that bought one, but it doesn't seem like you'll be getting anything. Look through this guy's dodgy requests and there are just too many inconsistencies. There's absolutely no proof he even owns or tested any of the lasers here. I was very close to getting one too.

DO NOT BUY ANYTHING FROM HIM, just search through the forums and you will find other reports of him trying to scam. I lost .5 BTC to this guy do not trade with him!!!!

If you still have one of those 2000mw green lasers for sale send me a PM i'll buy one this seems like it'll be fun to play around with.

Not cost efficient:
http://www.ijens.org/vol_11_i_06/118006-3535-ijmme-ijens.pdf

Also the setup you'd need to work on a 4*8 or whatever surface goes beyond the usual hobbyist stuff unfortunately.

bump, still got 1 to sell

Jeez... I wonder how difficult it'd be to rig up a device which just needs a level above-ground surface to mount the laser onto to be guided on to cut gypsum drywall (can it be burned through like that, even?). It can't be any more difficult than it is for me to trace it and cut with a dremel. I screw it up every freakin' time. Flooring would look like crap if I didn't get to stuff the edges under trim and the toilet. I always measure twice, so I must be fucking up thrice.

Your light bulb is pretty awesome if it has 30 time more light output than a 2W laser 

For a moment I thought that was real.

Look, we understand perfectly how much power a 2W laser packs. It's 2 watts (duh!). The naked lightbulb right on top of me is 30 times as powerful and I don't see the OSHA and FBI busting down my door anytime soon.  Heck, my mining rig consumes around 20 kiloWatts, now that is some power. I had to replace my blown fuses with a couple of screwdrivers but it is fine because I did it very carefully and won't be shining any laser at the breaker box (also, the handle of the screwdrivers is made of wood). Sometimes sparks fly out, I did my research and that means that my rig found a good hash and is celebrating.

You're funny.

You aren't allowed to import them. I could very possible make it through because of declaration abuse or mislabelling. If found it's seized and destroyed.

Once it's on your desk, in your home, it's fine. Owning it isn't the issue at that point, using it is.

If you use the thing inside your home and take sufficient steps to secure it's use, awesome, no one will know.

Going outside though, there lies the problem.

Using a laser above class 3a as a pointing device goes against 21 CFR 1040.11(b) and 1040.11(c). Since I have no clue where you live, figure out your own state/county/city restrictions that hook into this.

You need to request a variance 21 CFR 1010.4 in theory since you cannot be designated as using a laser pointer, but rather you're operating as a demonstration laser user, aka operating a laser light show.

Since you are no longer acting as an individual with a laser pointer, surprise motherfucker, OSHA comes a-knocking. OSHA technical manual section III Chapter 6 will explain all the various new obligations that you, the end user, have to follow. Table III:6-9 will give you an insight into the wide variety of exciting and expensive engineered controls required for operating a class 4 laser.

You might also want to contact the FAA to verify what's the classification for the sky above where you want to use your laser. Class G means you don't have to worry too much, but as you scale towards class A you might want to ask more questions re: usual flight plans.

You don't seem to understand the power a 2W laser packs. PPE not really necessary if you're "very careful" and basically only a recommendation? There is no MPE with class 4 lasers, but heh, you can just ignore that. Still waiting on you to explain to me how you'll keep yourself and those around you safe, especially with regards to IR bleed through.

Now, with all this, if you don't understand how you can get slapped by anything between public nuisance charge and felonious assault, depending on the recklessness you show, the injuries you inflict and the rest of the context of any incident bound to happen unless you take that 2W laser extremely fucking seriously, I don't know what to tell you.

50 mw available? Do you know where they are allowed?

You keep quoting laws and regulations for manufacturers, not for end users.  aka, they do not apply to anyone in this thread (besides possibly OP, but he isn't even manufacturing them).  You will not get your laser taken away if your caught with it, and it does not meet the standards you have quoted.  So I am not sure what you are attacking here?  It seems to be directed at me, but all I have said is that they are not illegal for people to own or use, which you have agreed with, then you have gone on citing regulations that have no relation to the topic (and are a simple google search away).

So not really sure what your getting at here as nothing you have said affects me in any way?

At no point have said that these lasers are illegal.

The FDA said that, bunch of freedom hating commies.



Oops. You also have further regulatory compliance issues such as the obligation to have a keyed interlock on Class 3B an above lasers and a bunch of other things cheap Chinese lasers don't implement.

Can your ridiculous laser make it through customs? It's quite possible, especially if the shipper bullshits his way through form 2877 in the importation process. Of course it's going to have a non-compliant class 3a sticker on it, just in case.

However since May 2014 both the FDA and the CBP are ramping up compliance checks. There are currently 89 companies and 100 originating addresses have been redlisted with regards to laser exportation misconduct.

Right now 21CFR1005.3 only states that your shit is going to get seized so whatever I guess. There is legislation being debated and a serious ramp up in enforcement.

http://www.fda.gov/downloads/MedicalDevices/DeviceRegulationandGuidance/GuidanceDocuments/UCM395499.pdf
http://media.ca8.uscourts.gov/opndir/14/06/132728P.pdf
http://www.fbi.gov/news/pressrel/press-releases/fbi-launches-national-campaign-to-address-laser-threat-to-aircraft

Now please amuse me further by explaining what "proper care" means.

I'm very understudied in this field. But can I take a stab at this? I'm probably very wrong, but I want to learn. A lot of this is studied from wikipedia and other sources so it might not be accurate. Please don't think I am knowledgeable in this field, I am very new and a complete noob. I'm just putting together some research and things surebet has told me.

A 532nm green laser is not all 532nm wavelength of light. There is 1064nm leakage that accompanies it (known as IR). This is generally undesired because unlike the visible 532nm of green light which causes our blink reflexes to close our eyes in the case of the laser hitting our eyes, 1064nm wavelength IR is not part of visible light, so our eyes's blink reflexes do not work in the same manner. Sometimes, we might not even know our eyes have been hit with high amounts of IR immediately. A sign of our eyes being exposed to 1064nm wavelength radiation is the "pop" or "click" noise that comes from our eyeball. This happens when the retina is heated over 100C, and is known as localized explosive boiling. This is accompanied by the creation of a permanent blind spot. I am not sure how to address this without wavelength specific PPE, but other than being sure the laser you are purchasing has high amounts of 532nm wavelength of light and lower amounts of IR (1064nm), some ways to address this would be to buy proper eye protection that will protect you from both the visible green light (~532nm) and the IR (1064nm). I am still not very knowledgable about the standards of safety glases, but some things to look for are high OD levels (optical density) which is a measure of how much radiation can pass through. I'm assuming the higher this is the better? OD 4+ sounds decent to me. Are there any drawbacks to extremely high OD levels? Also certifications are important. I think the two main are OSHA and ANSI (Z136?).


I'm sure I'm very wrong. Please correct me!

At work right now, so I really don't have time to look at all of that, but you do seem to have done some research (past copying and pasting I have no idea), but that doesn't matter.  They are not illegal to own in the United States, and proper care will keep one safe.

Besides, we all know they work like this
https://i.imgur.com/ton5Pwz.gif

Here a great opportunity to show off all that research you done did about lasers!

How do you plan to address the 1064nm leakage coming from improper or absent filtering after Q-switching the original emission via it's non-linear KTP crystal, without the use of wavelength specific PPE or the use of your blink reflex, in a context of high divergence scattering?

Feel free to put the phrase "localized ocular explosive boiling" somewhere in your reply.

TIA

I might have misconstrued the bit about your family and the beach as intent to use it in a public place with other people present. Then again, the bits about using it in a self-defence context and not really needing PPE while using a huge fuck off class 4 laser tell me you don't actually understand safe handling of these things.

But whatever, FUD FUD FUD, it's not like the obviously knowledgeable people in this thread have any kind of actual experience in the safe handling of these things. Nah, the reason why were advising ANSI Z136 compliance is because we're fuddy duddies.

You go right on with your plans to toy around with something that can cause immediate blindness a mile away. All you need to do is be really careful, because a beach doesn't combine huge bodies of reflective liquid, near unlimited horizontal range and the presence of plenty of people.

You can also feel free to ignore the following legal mumbo jumbo, because really, you've firmly established you won't get into any trouble.

Of course using a 2W laser as a pointer is ok, ignore the FDA!
21 CFR 1040.10
21 CFR 1040.11

Of course you know all the flight paths of all the planes, ignore the US code!
HR386

Beyond that, ignore the vast amount of state specific industrial regulations, ownership and usage regulations and any number of relevant jurisprudence cases regarding the negligent use of whatever. Again, it's not like your 2W laser has a miles and miles of range at a power level that can cause irreparable bodily harm.

Also anyone in charge of applying OSHA regulation anywhere is actually secret Hitler.

Have fun!

I completely agree, and that is a good warning.  But coming in, and making yourself sound uneducated by throwing things around the way he did, is not the way to go about saying that.  But in all honesty, if someone is buying something like this, and doesn't know how to handle it, is the best way to handle it to say, "have fun blinding yourself and going to jail?"  No that makes you sound like a jackass.