ฝัง
- เผยแพร่เมื่อ 28 ก.ค. 2019
- Sharing some interesting findings after testing about 40 pairs of sunglasses and a few pairs of regular glasses. See how much UV protection seemingly similar sunglasses can differ. And also see how regular glasses may or may not block UV. Be more aware of what you’re purchasing and know wearers of glasses can be protected from UV as well as or better than some sunglasses.
![[LIVE] : ONE ลุมพินี 70 | คู่เอก "โฟกัส vs สเตฟาน"](http://i.ytimg.com/vi/_fVieQ89DRQ/mqdefault.jpg)
I work with blind people for quite some time now. I wish more people will view yr video and safe their eyesight. Some buy tot glasses just to make their children look cute without realising the dangers that they expose to their children's eyes
Thanks for the video, searched for a while to find a clear answer to the question on how to tell if sunnies are legit, found my answer here!
Thank you, very helpful
Thank you. This was verry clever method!
Excellent. Thanks for sharing
TQ for an excellent explanation.
Link for the uv flashlight? Thanks. I liked that this ine has no violet visible light
Thank you very much very well explained.............
Nice, thank you!
can you test polycarbonate lenses?
365nm or 395nm better for testing sunglasses?
Just ordered a pair with this protection! Hopefully i dont get sun blocked anymore
Hello! Led 395nm is same for test? What's differences between 365 end 395? Thanks
How do you check for different wavelengths?
Now I know! Thank you!
thank you very much sir
i got a uv light but no california driving license, am from india, any tips on how i can test please
edit: nm i got it. i had an old debit card by visa n i just randomly tested its logo under uv light n saw a v appear under uv. tested it under my new edith sunglasses and they are uv protected not polarised though
Great video, thank you
Thank you 👍🏻
Where to get the uv flashlight?
Which is better uv protected sunglass or polaroud
Awesome video, where did you get the light?
I used a Nitecore chameleon cu6. Could be bought on Amazon or any online or local flashlight store that is a Nitecore dealer.
What’s the Rayban Model number you are using ??
I just tried it and thankfully they were all good
Amazing video
Thanks
you are testing them other way around. no one is wearing glasses looking into glasses from the front
It's the same. I've donde several tests using my uv lamp and when a glass lets uv light pass through from back to front, it also lets uv light go thorough from front to back.
Why not used light front side of glasses.
THAT WAS VERY HELPFUL MAN THANKS
A tip : you can watch movies on flixzone. Been using it for watching loads of movies these days.
@Alejandro Forest yup, I have been using Flixzone} for months myself :)
Can we use some other methods...apart from uv light
Not that I know of, you need UV light to see how much UV light gets through to the other side and makes the special material glow.
I put a pair in FRONT of some transition lenses. If the transitions turn darker then your glasses aren't filtering out the UV.
What if we dont have the vu flash light?? SOMEONE PLZ HELP
Any link to purchase uv light for testing...which you are using
Look for the Nitecore Chameleon CU6
Go to a glass store and test this on the sunglasses. Half of the ray-bans won't stop the watermark from glowing. Are you sure this is a real way to test UV protection?
My Oakley light up too . And 10 more my mates light up too, only three are not. I bring my Holbrook and test using Kodak uv tester at optical shop all my sunglass block uv 400. But some block hev better than others. I think the light will glow because hev rays ( more than 400 nano meter)
After watch this video I feel stress because all my glass fail except one which is yellow tinted sunglass.
But after take it too shop for testing than I know something about hev
Were you using a UVC light?
It's supposed to be UVA light at 365nm
nice
Hi, anti-radiation glasses (used when using computers) seem to block UV also- is this true? It does not have to be UV400?
I think it depends, you can't tell by looking at it so best to test it. Different manufacturers can use different materials to make the lens. But indoor at the computer you aren't really getting UV. It's more a problem when you go outside.
@@bencwang Hi. I use the radiation computer glasses when I use the UV glue (not too worried about screen blue light coz' my Mac and phone are set to Night Shift, set at sunset). It's hard to find (cost-effectively) one, I had to go to many malls, bring the UV flashlight and shine it on what the salelady said are racks of anti-radiation glasses (they were all looking coz' they weren't used to seeing blue light being shone at glasses). I prepared a paper in my wallet w/ highlighter mark on it to see if it'll light up (one could use the money's security in the wallet). I probably spent more than an hour but thankfully I found one. I first ordered online, what was described as UV400 but it had almost zero UV protection like my safety glasses (I didn't refund, just gave it as a Christmas gift).
It took months looking for something I could use with UV glue:-) seek and you shall find as they say. I hope it's really protecting me (through it I shone it at a passport, money and driver's license, none of the security images came out).
But I guess the fastest but a bit expensive way is to go to a reputable glasses store w/ brand name and a UV tester, balancing the style and cost a UV protection is a bit overwhelming coz' of the choices.
What is this torch ? Can we take normal torch and lighten it on credit card
This was the Nitecore Chameleon CU6 flashlight I used, which has a UV LED as one of it's sources.
@@bencwang can we get another chinese torch , easily available in market..
Can we test it with normal LED torch light
It’s possible to find other UV led light sources around the 365nm range. 395nm ones may work ok but don’t go into the deeper uva range. It’s good to have both to see if at least at those two test points both are blocked well. A standard white or colored LED won’t work.
New subscriber here.
What wavelength was your flash light? 365nm or 395nm?
This particular flashlight claims 365nm
@@bencwang
Loved your content.
th-cam.com/video/o9BqrSAHbTc/w-d-xo.html
Did you ever tried it on your face like they did in this video. If yes, could you plz tel if it works just like this? Please🙏🏻
can you put a link whece I can buy that last glasses I reed need that for using computer daily
Buy uv 400 lenses
Those last glasses were Essilor Crizal Avance AR coating from many years ago. These days, they make Prevencia AR coating for some blue light reduction for computer use, or Sapphire 360 for highest overall AR coating performance.
Hey man can you put the link of Rayban wayfarer shown in video...i need it
hello there friend
Can you do this with plain white paper?
No, it needs to have UV reactive material to know whether UV went through the glasses. You can’t tell that with plain white paper.
You can do it with bills too, as most have a UV reflective part
So I found a pair of Ray-Ban aviators at a thrift store today for 1.99. I was sure they couldn’t be real. Seems they are.
They don't have to be real to block UV. Lots of inexpensive ones also block well.
@@bencwang i didnt know that
So cheap glasses from dollar tree or walmart are good for protect my eyes? If the sticker says uv400
you are testing them other way around !!! no one is wearing glasses looking into glasses from the front
There should be no difference to transmission.
💜♪♫*¨*•.¸¸ ॐ
I realized that I damaged my eyes wearing a cheap Chinese shades 😞
@@propofol-98 UV permanently damage the light receptors in your eyes. You won't feel pain but damage already occurred. I was also stupid enough to stare at sun with naked eyes. Although I can see still good I feel guilty
@@propofol-98 cheap generic shades could be dangerous because there is no certification of UV protection. More over it could possibly converge the harmful rays into the eyes.
I'd pick Maui Jim, Oakley or if it's a custom frame I'd pick transition lens.
So why do you not tell your viewers what materials and coatings are available to actually make a UV 400 lens? A mass of consumers want to know the issues in order to understand how to spend their money and protect their health. They want some education about the the specifics. This presentation FAILS! You're just WANKING here.
Yeah just to even make things more sure!
nobody is obliged to explain anything to you, go to google and start educating yourself.
entitled person...