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Old 03-14-2012, 11:41 AM #177
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by Improvidus View Post
Thanks for the feedback! I was originally going to ask about ML7 goggles but after looking at the others that were available I decided the DBD goggles would likely be better for my use.

As for the red protection, would the RB2 be a good choice to buy for possible use in the future if I were to acquire a high powered red laser?
Yes, they'll protect up to 5W of red with their OD3+. I chose the RB2 over others because I prefer the higher VLT. There are ones that'll protect you better such as the KRR (OD5+), but they have lower VLT. The KRR is also ~$20 cheaper. I just prefer higher VLT, even at the expense of some reduction in protection.

Quote:
Currently I am looking at two pairs of the goggles. One for myself and one for another person. I know I want two pairs that provide protection for green lasers. I'm not sure yet if I want to go for two pairs for protection from red lasers. Would be quite a bit of money for all of those or four pairs total.
Yeah, they sure can add up. Perhaps get some strictly for working solo, and others in case you want other people to observe the lasers too. I only have a second pair of ML7s for a guest, but they're rarely used, and I haven't bought any secondaries for the other goggles. I'm glad to have the second pair for the "general purpose" pair of goggles (ML7) in case someone needs to help me out, shut something off, or just to enter the room to get to the safe location to see something (the goggles are to block matte reflections). Still, I think only one second pair is enough, at least for me.

I'm not sure how well those Eagle goggles perform. Many goggles have that "OD" rating, but how or who tested it, is rarely known (hence why we get laser protection certified goggles). I have some other anti-red laser goggles, but I just don't know or trust them; they just sit around unused. They may be good for blocking matte reflections from Class 4 lasers, but not a direct hit. Those "radiant shields" are supposedly tested, but I don't know if they cover red.

For reference, you can compute the power reduction from the OD rating:

Input power * 10^(-P) = Output power

Where P is the OD rating. You need to have the output power below 5mW to be safe, though you'll want it less to be comfortable (1mW is usually good, or even far less).

I only mention getting some goggles for red because after you get a green laser, you will probably want to make a red or blue (blue will be covered by the DBD). The greens get kind of "boring" since you are dependent on some pre-fabbed module, rather than being able to use diode-lasers too, not to mention getting higher powered greens is expensive.

The reds are just recently coming into their own now too, with those M!tsubishi laser diodes easily going over 500mW for dirt cheap. If you're going to do beam combining/RGB it's also very nice to have all wavelengths covered. You can always buy the goggles direct some other time, but you won't get that 25% discount.

Quote:
Originally Posted by Ryanrenesis View Post
Why is the KRY not on this list?

Can I still join the group buy if I want the KRYs?
You can order any pair of goggles that OEM sells even those solid metal ones. The goggles in that list are just what some people have decided on ordering, and what you'd expect to pay after the 25% discount. The 25% is for any and all goggles placed through OEM in this GB.

The KRY has a VLT of 10% which makes it hard to see. You might do better with an ARG instead; they're also cheaper.


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Old 03-14-2012, 11:56 AM #178
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Default Re: GB oemlasersystems goggles

I think I might go for a DBD and a RB2 then. Possibly two of the DBDs since I'd like to have an extra in case it is ever needed. Then I might get a pair of the Eagles or if I'm actually using the spare goggles I could always buy another at the full price.

I've seen the Eagle goggles mentioned around here and they're generally favored for those who do not want to spend more than $80 for goggles.
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Old 03-14-2012, 02:39 PM #179
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by Ryanrenesis View Post
Why is the KRY not on this list?

Can I still join the group buy if I want the KRYs?
The list is just the ones that others are ordering. I will add the KRY for you
Would you like me to add you to the list?

Quote:
Originally Posted by Improvidus View Post
I think I might go for a DBD and a RB2 then. Possibly two of the DBDs since I'd like to have an extra in case it is ever needed. Then I might get a pair of the Eagles or if I'm actually using the spare goggles I could always buy another at the full price.

I've seen the Eagle goggles mentioned around here and they're generally favored for those who do not want to spend more than $80 for goggles.
Clarification: you want 2x DBD and 1 RB2? (Tentatively added to the list in the OP)
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Old 03-14-2012, 04:37 PM #180
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by Improvidus View Post
...

Also I have not purchased my laser yet but I am pretty sure I will be going with this one to start with unless someone has a recommendation of something better: Power Rock Green laser Torch 50mW /Focusable&Waterproof [OL-MRGL50] - $36.99 : Zen Cart!, The Art of E-commerce
I wouldn't mind spending more for a quality laser and am planning to buy a more high powered one in the future. I think this 50mw one from O-Like.com is a good starting point though. I've used weaker laser pointers in the past and have already read up on multiple threads in this forum regarding laser safety.

...
I've actually just bought that same laser. I don't have time right at this moment to type up all that much about it, but keep an eye on this thread I made a while back, I should be making a new post within a day or so on how I like it.

In general, I'd say it depends on what you want the laser for. I bought this one to have a visible beam that wasn't quite so dangerous as the class 4s out there (green is the most visible laser color). If that's the sort of thing you're going for, this is probably a good choice for you. There's also a link on that thread to some overspec pen-style lasers for a bit cheaper - I'll explain differences later.

If you want something that will burn things... Well, I don't think this laser is gonna do that. If that's what you want (and you've really read up here and can be careful), you'll want to buy a 445nm blue from someone on the forum, since there's quite a few people selling, and you'll get a much better price and quality guaranteed laser than pretty much any site out there. Blue because that seems to be the cheapest at high powers right now, and you'll need somewhere over 200-300mw to effectively burn.


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Old 03-14-2012, 07:32 PM #181
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by dethlore View Post
Clarification: you want 2x DBD and 1 RB2? (Tentatively added to the list in the OP)
Yes, I'm going to go with this except I'll take 2x DBD and 2x RB2. I'll take all four of them in Style 56. From what I can tell this is the same as Style 35 except for the added side shields.

I wasn't sure but decided would be nice to have the spare pair of RB2 goggles as well. As these group buys don't come up often I may as well get a couple of pairs of each now. Better to be safe and I'll likely save a bit if I ever needed them in the future.

Total for all of these, 2x DBD and 2x RB2, should be $441. Is that correct? I am able to pay immediately or within a week.

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Old 03-14-2012, 08:09 PM #182
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Default Re: GB oemlasersystems goggles

Improvidus: PM Sent
Shipping assuming you are in America... otherwise it will be different. I will need your address.
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20X 650nm Cheapy Home Depot 9led conversion - My first ever build using Rkstr driver.
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- in progress
A140 445nm 1.4W 3-element glass lens | custom Quassimoto host (twin) | home-made LM317 driver | Radiant X4 LPM
A140 445nm 1.0watt custom Quassimoto host(twin) with 445/405 driver
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Old 03-14-2012, 08:21 PM #183
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Default Re: GB oemlasersystems goggles

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Shipping assuming you are in America... otherwise it will be different. I will need your address.
Thanks! You should have the information now.

@shadowhawkxx I already saw your thread earlier. Will watch it for more updates. I know about the overspec pen style lasers. Might buy one of those from that thread depending on how long it takes for them to come back in stock. These are the ones I'm talking about: http://laserpointerforums.com/f39/sw...ock-65618.html

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Old 03-14-2012, 10:26 PM #184
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Default Re: GB oemlasersystems goggles

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Originally Posted by Improvidus View Post
Thanks! You should have the information now.

@shadowhawkxx I already saw your thread earlier. Will watch it for more updates. I know about the overspec pen style lasers. Might buy one of those from that thread depending on how long it takes for them to come back in stock. These are the ones I'm talking about: http://laserpointerforums.com/f39/sw...ock-65618.html
Yep, those are indeed the overspec pens I was talking about. If you already saw my thread, you know about my personal bias against pen lasers, but that's just me.

As for the lasers themselves... not sure how familiar you are with lasers overall, but I wouldn't call 50mw the "big guns". I mean, wanting super-great goggles is commendable, and safety is great, and of course if you have the funds that this isn't an earthshaking purchase, go ahead, and the rest of my post doesn't really apply. Otherwise...

Which goggles you you decide to buy should reflect what you plan to do in the future in regards to lasers. I think this has already been sort of mentioned, but you should consider what colors you feel you'll likely be interested by in the future, and what wattages. If you think you'll ever get into higher-wattage lasers in any way (anything class 4), then by all means, this GB is definitely something you want to buy corresponding goggles for. But in the case that you don't see yourself having interest in much more than that 50mw green... almost $500 of goggles is sort of a lot. You have mentioned a high powered red laser as your interest in higher wattages. Any particular reason for red? Blue lasers are a lot cheaper here at high powers, plus you can get one set of goggles that will work for blue and green (ARGs seem a favorite for that).

No pressure intended, mind you. If you've already put your own thought into what lasers and goggles you want, I'm in no way an expert on this. Just figured it would sort of suck to end up paying so much for various goggles that you don't have any money for lasers ^^;

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Old 03-14-2012, 11:49 PM #185
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Default Re: GB oemlasersystems goggles

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But in the case that you don't see yourself having interest in much more than that 50mw green... almost $500 of goggles is sort of a lot. You have mentioned a high powered red laser as your interest in higher wattages. Any particular reason for red? Blue lasers are a lot cheaper here at high powers, plus you can get one set of goggles that will work for blue and green (ARGs seem a favorite for that).
Well you can't put a price on your vision you know. My approach on buying things like this is that if they are investments you ought to get them earlier so that you can use them for longer periods and get more out of your investment. Esoteric products like these tend to never go down in price, and often increase in price due to inflation.

I was absolutely elated to see another OEM group buy come up again. This past year I've been regretting not buying goggles for red the previous GB, as I thought I'd never need them; it was actually a pretty good gamble, as the reds are only becoming very powerful now. Still, I'm really feeling limited in what I can do because I don't have sufficient red protection. You have to jump on these things, or you'll be paying $100 more just to source the goggles yourself without the discount, or need to wait another 2 years to get in on another GB--if it happens.

Plus, why limit yourself to just blue or green? Once you have one or two wavelengths you'll want to diversify your collection or do more advanced things like combining. Red is already in very high powers, with a mW/$1 ratio that is fast approaching that of blue, and far surpassing all but the most expensive greens. While not "exotic", green is now one of the more expensive wavelengths along with 405nm, where previously it used to not be.

Buying goggles for red, in my mind, would probably be a more worthy investment than for green, especially as it is good to also have IR protection for your green goggles. In Improvidus's case, those DBDs cover 445nm, 532nm AND the IR wavelengths. It's a great general-purpose pair--better than my ML7s I'd say--that costs less than buying two goggles to cover those wavelengths separately (like I'm doing). Watch as he starts making projectors and other stuff, making great use of those goggles.
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Old 03-15-2012, 12:17 AM #186
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Default Re: GB oemlasersystems goggles

Starting to consider getting another pair for red myself here...

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Old 03-15-2012, 12:30 AM #187
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Default Re: GB oemlasersystems goggles

I was thinking about doing one DBD, one RB2, and one ML7 to use as a spare for if my girlfriend or anyone else wants to observe. It would definitely be the cheaper option and the ML7 goggles seem decent for general purpose use.

I know I need goggles for red and green to start out with. Might possibly add a high powered blue laser later. Just don't want to end up like the guy that caught the 1000mw and now has a blind spot. That's why I'm investing in quality safety goggles first. You only get one pair of eyes.

Unrelated to this but related to safety, we closed whole floor in the hospital where I work today. There was a bad chemical spill of phenol. Luckily it wasn't a high traffic floor and happened later in the afternoon. Could smell it all the way from the other end of the corridor.
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Old 03-15-2012, 01:39 AM #188
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Default Re: GB oemlasersystems goggles

Not to dissuade you from getting an ML7, but be aware that the ML7 affords no protection for 445nm, and very weak protection against reds. Unless you're planning on sticking solely to green lasers for your GF's viewing, you may be better served buying a pair of ARG goggles so that both 445nm and 532nm are covered (the ARG is also less expensive than an ML7). Protecting against the IR component in the green is important; however, it depends a lot on the laser itself (its built-in filtering) and how close you are to the laser and the aperture (quite a bit of the IR diverges rapidly). If someone is just standing away from the green laser and not in the beam, it'll probably be okay to just get the ARGs for the guest pair.

The ARG is also very nice for 445nm, which you really do need to protect against because they come in such high powers such that even reflection off non-specular surfaces can be dangerous.

I bought two pairs of ML7s in the first GB (4-5 years ago?) because I was into green lasers at the time, Deal Extreme still sold green lasers to people in the US (and those lasers had poor IR filtering), reds were relatively weak and I didn't care to build any, and no 445nm lasers existed (affordably). Times have changed, however, and I would probably have bought one DBD and an ARG if I knew what I know now.
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Old 03-15-2012, 02:23 AM #189
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Default Re: GB oemlasersystems goggles

Thanks for the input. I may consider one DBD, one RB2, and one ARG then. This should be considerably cheaper than my previous choice of two DBD and two RB2. Also since I am not sure how often the spare pair will be used this may be a more practical option.
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Old 03-15-2012, 03:11 PM #190
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by Improvidus View Post
Thanks for the input. I may consider one DBD, one RB2, and one ARG then. This should be considerably cheaper than my previous choice of two DBD and two RB2. Also since I am not sure how often the spare pair will be used this may be a more practical option.
Would you like the updated price for DBD, RB2, ARG? Or are you still thinking about it?
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A140 445nm 1.0watt custom Quassimoto host(twin) with 445/405 driver
M140 445nm 1.4watt custom everything
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M140 445nm 1.8watt custom sink/module/driver in Ultrafire 504B with Extension Tube

405nm BluRay Player - Dead <5mw
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Old 03-15-2012, 07:29 PM #191
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Default Re: GB oemlasersystems goggles

Sure, it would be $280.88 plus the 3% Paypal fee and shipping? I'm going by the prices on the first post.

Last edited by Improvidus; 03-15-2012 at 07:30 PM.
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Old 03-15-2012, 07:55 PM #192
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Default Re: GB oemlasersystems goggles

Quote:
Originally Posted by Improvidus View Post
Sure, it would be $280.88 plus the 3% Paypal fee and shipping? I'm going by the prices on the first post.
Yes, plus shipping and PPFee. PM Sent.
__________________
[ | | ]--------------------------------------------------
lasers
808nm 20watt - watercooled
20X 650nm Cheapy Home Depot 9led conversion - My first ever build using Rkstr driver.
18X 650nm rifle mounted custom module
- in progress
A140 445nm 1.4W 3-element glass lens | custom Quassimoto host (twin) | home-made LM317 driver | Radiant X4 LPM
A140 445nm 1.0watt custom Quassimoto host(twin) with 445/405 driver
M140 445nm 1.4watt custom everything
M140 445nm 1.4watt custom everything, mounted in walking staff
M140 445nm 1.8watt custom sink/module/driver in Ultrafire 504B with Extension Tube

405nm BluRay Player - Dead <5mw
protection
OEM Laser Systems
DBD Style 34: 190-534nm, 790-1090nm OD7+ 22% VLT
ARG Style 56: 180-532nm OD7+ 48% VLT
Generic
Cheap Chinese for Red Wavelengths
GB Closed for now Click "LASER SHIRTS" to see the latest run!
LASER SHIRTS

OEM Laser Systems Certified Goggles - Protect your eyes!
www.oemlasersystems.com

www.reubart.com
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