You get poor vision looking through clear polycarbonate that has no anti-reflective treatment on both sides of the lensesMatteo V wrote: ↑Sat May 25, 2019 4:13 am
If it is too hard to see through polycarbonate lenses, then why are safety glasses used in:
1. construction (often at heights while walking on narrow ledges)
2. factory assembly (where accuracy and placement are extremely important)
3. machining (where detail is extremely important)
What the heck does anti scratch coating actually protect against? Will it actually stop a piece of sand on your wiping cloth from scratching the surface? How about if you drop them on gravel or concrete? How is the light that made it to the inside of the glasses on close wrap style glasses (like my safety glasses) too hard for someone to possibly see through?
Goodness Gracious Me! I knew this day would come. But I never thought it would be from "pulley". He has presented apparent facts, reasoning, and logic, in a pretty calm and collected manner without resorting to any personal attacks or blatant displays of frustration. I must "tip my hat" to pulley! It is just so strange to be on this side of the argument. And I have only one thing to add.
I am assuming that you can use light measuring instruments to determine the validity of the above claims, as well as pretty much all of the other numerical/statistical values pulley has presented. This naturally would lead one to believe that if one falls down while wearing "el cheapo/you are not spending enough money" sunglasses, then that fall was due to the cheap glasses. So what if I do not fall down?PullStrings wrote: ↑Sat May 25, 2019 10:06 pmPoly is the safest material to protect the eyes but has a lot of reflectance nearly 10% which impairs vision....but with 2 sided AR reflectance drops to 0.5%
There are contact lenses and lens implants that have UV and blue light blocking chromophores. They don't do anything to protect the skin of the eyelids and contact lenses are not a great solution for water sports due to the risk of infection. Contact lenses and refractive surgery do offer superior optics to eyeglasses not just because of light transmission and reflection but also no distortion or change in image size because the refractive correction is closer to the nodal point of the eye.
As i type this... i am looking through expensive clear anti reflective computer glasses that block 35% of harmful blue-violet lightMatteo V wrote: ↑Sun May 26, 2019 4:25 amGoodness Gracious Me! I knew this day would come. But I never thought it would be from "pulley". He has presented apparent facts, reasoning, and logic, in a pretty calm and collected manner without resorting to any personal attacks or blatant displays of frustration. I must "tip my hat" to pulley!
Is there a such thing as : " just a little bit of polarization ; like 1/2 of normal" ?
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