PullStrings wrote: ↑Sat May 25, 2019 10:06 pm
School's out....for now
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.
PullStrings wrote: ↑Sat May 25, 2019 10:06 pm
Poly 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%
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?
I do know something about human vision. And that is that our eyes ONLY GATHER information. The brain ACTUALLY INTERPRETS it. And as you know right now from reading this, while you can see the whole screen on which these words appear, your brain is not actually registering what is going on a sentence before or after this - let alone what exists in the margins. So what counts is what the brain is focused on and interpreting at the time. All of this inside reflectance (9.5% more in my sunglasses than in pulleys), at least for me and countless others, is of no consequence because the brain ignores it. If the brain could not cope with that additional reflectance, I guess we would just fall a bunch more.
So again, you can measure with millions of dollars of instruments, come up with 100 coatings to put on lenses to justify charging $200 for sunglasses, and talk endlessly about the physics involved. But in the end, what is the result?.......You just paid $200 for some plastic that you will loose, break, scratch, or otherwise ruin. I am not against that, but I like to call things as they are. I am still going to continue to use my $1 sunglasses, that I have been using for 10+ years. Though now, I am going to start to question if it was my sunglasses that made me read the wave wrong. Better yet, I can use it as an excuse for falling down - "I SWEAR I FELL DOWN BECAUSE I USE CHEAP SUNGLASSES!" And you too, pulley, can question whether it was that .05% of reflectance in your $200 sunglasses that made you fall down.
And thanks, pulley, for your tenacity, calm and collected responses, and belief that you are "doing it right" and "everyone else is wrong". I am going to have to concede, at least to some degree, and say that "I am doing it.....adequate.......with a cost savings of $199".