Goggles with RX inserts

[Auhydride]

Aquarium pumps are a type of diaphragm pump, it uses energy effectively, and really simple, can have enough pressure to push air through thin pipes, but they don't supply much air (3 liters of air per min, it was written on one of the battery powered pumps)
There are also Radial fans, that are good at pushing air through pipes and such, they are used in air conditioning systems, unlike axial fans (regular cpu fans) which aren't that good at pushing air through pipes.
So using a DC radial fan that is small enough to carry, a larger diameter air pipe, than splitting the air into smaller but four pipes, it's also not that loud when insulated, keep it inside a bag and it should be good.
You would look all futuristic, like an alien that can't breathe in o2, I wonder if there are air hoses in small diameters http://www.jumpingcastles.com/images/air_hose.jpg but are like this, those circles prevent the hose from collapsing.
Yes you can just buy a bigger goggle and install a fan on it, but there are masks that cover up your face and can't be used just because they fog up, an external air supply can solve the problem, and cool down your face.

Also I tried using green gas to circulate air, but it burns your eyes :b
This is also another idea, using a gas like Co2 that aren't bad for your eyes, it can be used to replace the air inside the goggle, also it can be used to suck air from outside with the vacuum (think of air brushes, it sucks the paint out of the container by using a nozzle, the same type of nozzle can be used to suck air out of the goggle) but, you would run out of gas eventually, unless you have a bigger tank, like something 1 liter, or a special composite material tank (carbon fiber) thats 1 liter, and near 300 bars (300 liters of air) now that would last, but expensive, fun though.

[coach]

Originally Posted by Auhydride

Here are some thoughts.

Hm, It seems like the fogging is because of the type of glass RX lenses use, polycarbonate doesn't fog, since it doesn't transfer heat well and doesn't store much heat,

hate to break it to you but polycarb lenses do fog. Nice attempt with your analogy though. I have a couple pairs that I have used and they both fog up.

One of the pairs has 4 interchangeable lenses and they all fog up too. (Brown, Dark grey with blue mirror, yellow, and orange)


try this:

[Auhydride]

Correct, i forgot to mention, Polycarbonate RX lenses fog, protective ones doesn't fog as much as they do, I think it's about the amount of heat they can take away from the air, and this depends on the surface, material, the amount of energy it can store, etc.
Polycarbonate RX lenses (especially thinned ones, lenses need to be dense to do their jobs, if you use denser lens, you can leave it thinner while trying to reflect the same amount of light) are really dense and solid, but protective ones are less dense.
So if you want the polycarbonate to have lens, reflective features, it has to be dense. But if you are not using it as a lens, just a glass, it can be less dense.
These are just my theories, correct me if i'm wrong.

[Auhydride]

Imo, Anti-fogging chemicals don't do much on RX lenses because their surface is perfected, and usually have coatings to prevent dirt, water from grabbing onto the surface. My anti-fog (OP DROPS) just get rubbed away.

[Duckman]

sorry, i didnt notice your prescription strength earlier. being that strong, the oakley option isnt very viable since they limit the maximum strength to about -4 in most frames. though i'm not entirely sure if they have options that will accomodate stronger prescriptions.

there really isnt much else you can do aside from chemical and fans because of the strength of your prescription. you could try applying your antifog to coating free lenses i guess.

[Kos-Mos]

You could have ordred some Wiley X googles/glases.

They offer the option to make the protective glass with your prescription.

So you only have 1 set of glass, not two.

This is what I will do when I get 200$ (yes, they only cost 200$ with the RX, frame and shipping). You only have to fill-in your prescription in the order form.

They have a lot of type/shapes of googles/glasses. Personally, I will go with some "Blink" series glasses. They hare very wide to cover field of view, and the frame is thin.

Originally Posted by Darklen

I run ESS Landops with an Rx frame in them (I can not wear contacts) and I just installed a 3/4" computer fan and switchbox on them. I also have the Bolles with the Rx frame but they usually fog up no matter what I use. I'm trying to find a SCUBA product called "pilot"(sp) that's supposed to be the cats ass to prevent fogging. So far, no luck.

[Auhydride]

Wiley also mentions the RX lenses won't have anti-fog coating, but because of better ventilation, they might just work, I wonder if they accept astigmatic -7.25. I'm going to check it out, but before that, i have an aquarium pump on the way to my house, i should get it tomorrow, and hopefully it will do the trick.
I might write a tutorial about these if i like the results, since it would be useful while wearing full face masks.

[bmdoublefoo]

Did the pump ever work?!?

[Styrak]

I use WileyX glasses/goggles. The prescription is IN the lenses, no inserts. They work great. Fog a little sometimes but it goes away right away.

[Eien]

Originally Posted by Styrak

I use WileyX glasses/goggles. The prescription is IN the lenses, no inserts. They work great. Fog a little sometimes but it goes away right away.

Do you order them directly from WileyX or you have to go to a dealer?

[Styrak]

I went to a local optical shop that carried Wiley's.

Total cost with frame and prescriptions lenses was about $120 I think. Not bad at all, and my company covered it under my health plan anyway!

[yan101]

I was about to ask the same type of question in the newbe tread. I am new and trying to build up my first ''kit'' including eye/face protection, sorry for the bad english I did use ato-translator for this one...

As someone here has already tried ''oil'' the lenses? They become water repellent and therefore the water molecules could not condense.
I assume it would take an oil with refractive index is similar to that of the lens (around 1.5 for regular glasses, very thin 1.6).

From what I read, the standard csa (for safety glass) is 4 times lower than the standard for ballistic glasses.

I thought using csa glasses with sideshield with a mask on top full wire mesh. Do you guys think it is a good option?

[coach]

Originally Posted by yan101

I was about to ask the same type of question in the newbe tread. I am new and trying to build up my first ''kit'' including eye/face protection, sorry for the bad english I did use ato-translator for this one...

As someone here has already tried ''oil'' the lenses? They become water repellent and therefore the water molecules could not condense.
I assume it would take an oil with refractive index is similar to that of the lens (around 1.5 for regular glasses, very thin 1.6).

From what I read, the standard csa (for safety glass) is 4 times lower than the standard for ballistic glasses.

I thought using csa glasses with sideshield with a mask on top full wire mesh. Do you guys think it is a good option?

This is a thread for RX inserts for goggles not for making your own goggles

If a field is stupid enough to allow it, your eyes. You only get one pair. But, at least if you lose an eye, you still have one left.

In short, No!

[yan101]

Originally Posted by coach

This is a thread for RX inserts for goggles not for making your own goggles

If a field is stupid enough to allow it, your eyes. You only get one pair. But, at least if you lose an eye, you still have one left.

In short, No!

sorry for the wrong thread, thanks for the answer anyways.