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waterproof laser brightness

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does waterproofing a laser affect the brightness/ burning?
if so how much does it affect it? :thanks:
i was considering buying www.rayfoss.com
but if affects the brightness/ burning alot i don't want it D:
 

Ash

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The latest rayfoss waterproof lasers have high quality AR coated glass outer glass. You shouldn't have more than 5-10% loss*, and with a 200mW that won't affect visibility or burning ability. Beware, though, some of those Rayfoss lasers have ~25% IR. Ask Faona (Rayfoss email contact) if she can put an IR filter in your laser for you before she sends it. They usually will do it for free, but it (usually) reduces the power slightly.
200mW? -I hope you have safety glasses for Green and IR laser light. :cool:
 

rhd

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Really. You need glasses that protect against both:
Multiple Wavelength
Eeeek. I have zone-stealth goggles and I am incredibly unimpressed. I got them because I purchased an IR 808 at 1W, and figured I needed something better than the blue (in colour) cheap eBay red-laser protective glasses (couldn't count on those to block IR, after all, they don't claim to).

Anyway, long story short, I bought these:
Protection Glasses for 808nm~850nm Infrared Laser

Well, you know how dim even a 1W infrared laser looks to the human eye normally? Shining my 1W infrared into my infrared glasses, I can still see the dot coming through the other side. Not impressed.
 

Krogith

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Josh, Just so you Know someone has that Avatar already :shhh:

It will be fun to make your own so it's originally yours. I can;t wait to see what you Make :beer:
 

Pilgor

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Waterproof lens will also screw with the dot, so if you're looking for a pointing laser, keep that in mind. It may also effect burning.
 
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Ash

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Eeeek. I have zone-stealth goggles and I am incredibly unimpressed.
Well, you know how dim even a 1W infrared laser looks to the human eye normally? Shining my 1W infrared into my infrared glasses, I can still see the dot coming through the other side. Not impressed.
Have you tested them using an LPM? I have heard that once in a while bad pairs few slip through QC. It is China after all. :)
If Josh wants to be 100% sure, he should buy some $150 OEM laser glasses.
If he wants to be 99% sure, he should get some Eaglepair and verify the OD rating on an LPM. :cool:
Waterproof lens will also screw with the dot, so if you're looking for a pointing laser, keep that in mind. It may also effect burning.
Yes. The waterproof lenses on the Rayfoss torches have an AR coating that is really easy to scratch. The dot/burning ability is really good on them when they are brand new. But, after a bit of abuse, the dot can get fuzzy (if you scratch the AR coating) but the burning ability (on a 100mW+) should be about the same.
 
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rhd

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Ok, just tested them.

With my IR at 800mW, it lets 35mW through.

I don't know if that is good or bad as far as glasses go. It doesn't seem impressive. It also very quickly melts the plastic. I made sure the beam wasn't focused to a point, and I even kept the glasses in motion - still created some damage.
 

Ash

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Is that what the glasses looked like when you got them?

I had a friend try and ended up getting eagle pair.
Eaglepair are the glasses that you get from Zonestealth.
I have verified (using an LPM) that the pair that I was sent (dark reddish tint) work very well at blocking 532nm and 808/1064nm IR. :cool:
(will verify again this weekend, when at home with LPM)
Ok, just tested them.

With my IR at 800mW, it lets 35mW through.

I don't know if that is good or bad as far as glasses go. It doesn't seem impressive. It also very quickly melts the plastic. I made sure the beam wasn't focused to a point, and I even kept the glasses in motion - still created some damage.
Hmm. Sounds like your glasses (IR-only) are between OD 1 and OD 2. The multi-wavelength glasses are rated OD 2 for 808nm, and OD 4 for 1064nm.
I'm not sure what the OD rating is for your eaglepair glasses (different model), but I would bet that they are stated OD2 or above on the spec sheet (if there was one). :undecided:
 
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Ash

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Okay. This weekend I metered 3 of my waterproof lasers with and without the waterproof lens. There is a 20% loss through the outer glass.
I tested:
30mW 532nm
70mW 532nm
600mW 445nm
-all had a roughly 20% loss through the outer glass-
 

InfinitusEquitas

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With the 1.2W O-like tactical, the waterproofing lens creates a loss of about ~70mW on a 1.05W laser. The loss in power expected by O-like themselves based on conversations with Susie is between 50mW and 100mW, so the 70mW result I got is right in the ballpark.
 

JBTexas

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So, worst case, when my 200mw Gatlin arrives, I can expect ~ 150mw or so. Susie emailed me (finally) and stated that it was metered at > 190mw.

Not bad(?)... can't complain. I am not going to fool with the waterproofing.
 

InfinitusEquitas

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With the gatlin you probably will get >150mW, but it is not IR filtered...

Also O-like testing is for raw optical output with no focus or waterproofing lens... just fyi I had a very long chat about it with them a while back about this, due to my 1.2W coming in a little underspec.
 

JBTexas

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I.E.; thanks, I didn't know that... somewhere(?) I got the impression that the Gatlin was I.R. filtered.

Oh well. I don't expect to be doing anything risky with it anyway. I have goggles on the way (which I realize might NOT offer IR protection)... I imagine I will only play w/ burning things for a "little bit" (once or twice); my main interest (for now) is pointing it UP at the night sky (but not at aircraft, of course). I'm a "laser newbie" though, and just starting out. So we'll see how the hobby develops (next step I think is to try a DIY - maybe a low-moderate output red at first).
 




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