November 13th, 2008, 13:48 | #16 |
Whats left to do beside laser surgery or contact lenses? (both are impossible for me, for at least 5 years)
Making a custom lens holder, based on the bolle's lens holder, which is way too big, extends to the places where you can't even look at, it blocks the airflow, also i had to cut my eyelashes (yes, my mom is pissed) so they would stop hitting the lenses. And use the old lenses in the same lens holder. |
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November 13th, 2008, 14:44 | #17 |
Administrator
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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.
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ASC Age Verifier for Red Deer & Area Alberta |
November 13th, 2008, 17:27 | #18 |
You could try getting a good strong wrap around frame, polycarb/carbon fibre etc, and have polycarbonate prescription lenses put in it. I used this for a several years with very little problem, granted I worked at an optician so that made it alot easier.
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November 13th, 2008, 18:39 | #19 |
i think i will just give up trying lol
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November 13th, 2008, 19:01 | #20 |
aka coachster
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November 13th, 2008, 20:44 | #21 |
PMed and gave the link of this thread, Hm I wonder if i could find any air pumps, similiar to the ones used in small blood pressure devices, to pump air through a thin pipe
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November 13th, 2008, 21:02 | #22 |
what about a definitive industrial anti-fog coating ? anyone ever tried that?
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November 14th, 2008, 03:40 | #23 |
Official Crybaby Chairsofter
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Thermal lense for the goggles. I have them in my ESS, no fog unless its very humid etc etc and even then i barely have any.
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November 14th, 2008, 09:19 | #24 | ||
aka coachster
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Quote:
Quote:
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November 14th, 2008, 10:21 | #25 |
Get the lenses with a good AR, anti-reflection, coating. This will have a hydrophobic layer it it, it reppels water and will reduce the amount of fogging you will suffer from.
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November 14th, 2008, 11:11 | #26 |
"Get the lenses with a good AR, anti-reflection, coating."
Did that, actually, i suspect the hydrophobic layer to be making the OP DROPS anti-fog uneffective, since it needs a surface to grab onto, I'm planning to visit the shop and check unfiltered lenses if they do any good with anti-fog stuff, if they do, 250$ goes to waste But i'm also considering using some kind of pump to pump air through some thin air pipes into the goggles, it would solve the problem. |
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November 14th, 2008, 16:38 | #28 |
November 14th, 2008, 21:23 | #29 | |
Quote:
what i have are a pair of jt thermal paintball goggles with jt's rx adaptor which is just a compression fit to the top mesh of hte goggle and the bottom of it. with which i have no eye lash issues and have yet to fog in the last 2 or 3 years that i've had them. you might have a bit of a hard time with hats or helmets sitting properly though. there really isnt all that much you can do as far as i know in the case of bolle's since there really isnt all that much airflow to begin with plus they sit so close to the face. honestly you're kinda screwed if you sweat alot in the area surrounding your eyes. this is amplified by breathing heavily when active. i offset this by exhaling out my nose as much as possible thus directing the moist air from my lungs downward and not out and up that exhaling through your mouth can do. as far as your fan idea goes i'd say try using ram air at the sides if you have the small gap under the strap attachment area's. this is generally only the case for people with narrower faces, and then rig the battery on the strap behind your head. it's going to be loud and your eyes will feel as dry as stones in a desert if you run it constantly. and then there's the added weight of the hardware on the goggle itself. i've had the rx problem forever and what i've done is either wear smaller framed glasses under the mask or just get rx shooting glasses made....oakley has a bunch that come close to full seal like the M frame or the Radar (which is going to be my next pair). you shouldnt have any issues with eyelashes unless your prescription is really strong to the point that they stick in as far as the inserts of other systems. that's really drastic though, considering that the oakley method will have a cut out of sorts in which your rx will fill. so what will actually stick in towards your eyes will be anything beyond the first 3mm thickness of the oakley basic lens. so the rx portion of the glasses will far exceed any standard that a lowly generic 3mm polycarb lens will provide since oakley uses polycarb for all their lenses. being in instanbul, i'm going to assume that you dont have the same lack of nose problem that i do and they should work quite well. there are other models beyond the M frame and Radar but those are the ones that i'm choosing from. so all this typing really boils down to get a pair of jt's with the rx adaptor and add fans as needed to the top or if you're absolutely against them i'd have to say to have a pair of oakley's (or similar)made. they're pricey but since you're willing to pay 250 just for lenses i dont see a pair of oakley being a huuuuuuuuge issue. you can always get the other lenses cut into new frames for regular use. be warned though, custom prescription oakley's are FAR from cheap. the ones that i currently have are in the $600cdn range and my next pair will price similarly. there are some flucuations depending on what options you want and such but they can be used for pretty much everything that involves sunlight. you can even get them photochromatic for changing lighting conditions. and no i dont work for them ...i just love the product. another tip in the mean time is to keep them REDICULOUSLY clean!!!! dont EVER touch any lens surface with your bare skin or a sweaty shirt or anything like that. use microfiber cleaning stuff/clean tissues (they leave lint though) as much as possible and keep that clean as well. something this simple will help incredibly in reducing the amount of fog you'll suffer from. personally i try to never touch the lens itself and if i do i'll just suffer through the finger print until i can get to my cleaning supplies. annoying in the field i know but it's better than spreading the oils around and having a bigger blind spot on the lens when it fogs. oh, i also still use the small frame glasses as a back up or if im feeling too lazy to switch back and forth in the safe area to field wear. i hope this helps some.
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Last edited by Duckman; November 14th, 2008 at 21:29.. |
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November 15th, 2008, 14:52 | #30 |
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, think of a steel plate and a wood plate, keep them near your mouth when they are at the room tempeture, the steel will cause water in your breathe to condense and wood won't. So no matter what you rub on it, it will fog up, since it takes heat away from the air, causing the water to condense, applying chemicals on the surface can help to reduce the amount of heat transferred maybe, or just making the surface harder to grab onto by water atoms. So, It should be as warm as your body, maybe warmer, so the water won't condense. In theory, heating up the lenses work, actually, i heat them up with a small lighter torch before wearing, and don't get fogging at all, but eventually it will cool down below the body tempeture. I can try heating up the glass a few degrees over the body tempeture, but it wouldn't be so comfortable. Second idea is to drive moist away from the glass, less % of water in the air means cooler lenses required to condense on, since the water in the air will be more stable. Goggles do this by opening holes on the goggle to allow air to circulate as you walk or by itself because of heat difference, but when it's not enough, you need a fan. Bolle t-800 wouldn't have space to install a fan though. Now i will check if it's possible to use an external air pump to provide air through air pipes, with enough fresh air, it's not necessary to heat up the lenses. I bought a battery powered backup pump that are used in aquariums, they are really small, and use D type batteries, i will install smaller batteries and maybe use two pumps, since the pumps themselves are small, maybe i take them out. They aren't loud either, i need a small silencer installed on the pipe (a pipe larger than the pipe and maybe have walls inside it) other than that, the pumps just make a low humming sound, which can be muffed by some foaming, and keeping it inside a bag. Last edited by Auhydride; November 15th, 2008 at 14:55.. |
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