Science

All About Visible Light Transmission

All About Visible Light Transmission

So, what is visible light transmission?

You may have noticed on every single one of our sunglass lens listings we have a category number listed. You might be asking yourself, what does this mean? Well, you’ve come to the right place.

The category number refers to the visible light transmission (or VLT). This simply refers to what percentage of ambient light is allowed to pass through your sunglass lenses (aka how dark the sunglass lenses are). For instance, our Clear lenses have a VLT of 100%. This means that 100% of the visible light passes through them (because they’re clear). The darker your lenses get, the smaller that percentage becomes (and the higher category they are included in) because they are letting in less light. This number does not refer to how protective the lenses are, just how dark they are.  

VLT is affected both by lens color and the coatings that are put on top of the lenses. You can have the same grey base lens, but if you add a mirror to one of them, it will change the way the lens allows light to pass through, and thus affects the darkness of the lens. But, you don’t have to worry about figuring it out on your own – we list the category number of every one of our sunglass lenses, remember?

There are 5 categories of VLT that your sunglasses can fall under. You may see the cut offs vary from source to source, but the categories are generally accepted. Those categories are as follows:

 

Glacier Mirror Replacement Lenses

Our Glacier Mirrors are dark enough for a bright day out on the boat!

Category 0: 80 – 100%

 

Category 1: 46 – 79 %

 

Category 2: 18 – 45 %

 

Category 3: 10 – 17 %

 

Category 4: 3 – 9 %



Now, let me break it down for you.


Category 0: 80 – 100%

Very Low Light/Night

As I mentioned before, our clear lenses would fit into this category. Our clear lenses let in 100% of the light around you, making them ideal for night time when you don’t need any darkening power. Our Gaming lens (yellow tinted with our Ion backside coating) also fits in here. Obviously, you can wear these lenses outside and at other times during the day, you’ll just have to squint a little. Your eyes will still protected though – all of our lenses, even our clear lenses, are 100% UV protected!

 

Category 1: 46 – 79%

Low Light

Lenses in this category are great for lower-light conditions or  basically anytime you want lenses but aren’t out in the blazing sun. Our Photochromic (Darkening) lenses start out in this category and darken as you spend time outside.

 

Category 2: 18 – 45%

General Use

Lenses that fall into this category are great for everyday use – errands, driving, looking cool – you name it. Sunglasses in this category darken your view enough to increase eye comfort but are still bright enough to be able to see exactly what you are doing. All of our fashion gradients fall into this category, they are a perfect choice for a day out on the town. Our yellow polarized lenses also fall into this category. Yellow polarized increases color contrast and can help your view drastically on hazy days. 

 

Category 3: 10 – 17%

Strong Light

A majority of Fuse Lenses fall into this category. Lenses in this range are great for sports, going to the beach, fishing, and other outdoor activities. These lenses cut through bright light and but are still perfectly suitable for driving. Just a few examples are our Cosmic mirror, Cascade mirror, Nova mirror, brown tinted lenses, and more.

 

Category 4: 3 – 9%

Very Strong Light

Lenses from this category, you won’t find in retail stores often. They are commonly specialized lenses for activities that require more darkening and glare reduction then most people need. We sometimes have one or two lenses that creep into this category – just know that the darkest we can (legally) sell is 8% VLT, so don’t be crazy. We want you to be comfortable, but still be able to see. 

 

So, there you have it. VLT categories all broken down! If this is too much and you just want to know what lens is the best for fishing, driving on cloudy days, or what our darkest lens is – just ask us! Email us your questions anytime at eyecontact@fuselenses.com and we’d be happy to help you out.

Posted by Jessica in Science, 0 comments
Can’t Sleep? Wear Sunglasses

Can’t Sleep? Wear Sunglasses

If you thought that wearing sunglasses at night was reserved for the celebrities or other cool people among us, you might be surprised. There is now a growing number of scientists joining this club.

source: giphy.com

Some sleep experts believe that wearing sunglasses before going to bed may help regulate your circadian rhythms. Circadian rhythms help determine our sleep patterns. It’s basically your body’s clock. It uses melatonin production and other factors to tell you when to be awake or asleep.

 

In general, light exposure determines this pattern in the human body. It’s historically more useful to be awake when there is sunlight out. So, the body aims to be awake during the day and asleep at night. Make’s sense, right? However, artificial light – think the cell phones, laptops, and TVs we can’t seem to ever look away from – can disrupt these patterns.

 

The general idea is that if artificial light is disrupting this pattern, artificial darkness might help get it back on track. We all know how important it is to get a good night’s sleep is – it can help you be more productive, more creative, and help remove toxicities in your body. So, if you are someone who can’t seem to fall asleep, you might want to give it a shot. We suggest getting a yellow, brown, or amber base lens. Then, just throw on your shades 2 hours before bed time. Sweet Dreams! 

Source: giphy.com

Read More: Bustle, NIGMS

Posted by Jessica in Science, 0 comments
What are you doing with your Eclipse Glasses?

What are you doing with your Eclipse Glasses?

The Great American Eclipse 2017 was one of the most anticipated astronomical events, maybe ever. But, it is now in the past. If you’re anything like me, you are stuck with eclipse glasses that you have no idea what to do with. You can throw them in the trash; but then you may get haunting nightmares about global warming and trash-filled oceans. You can try and save them for the 2024 Eclipse; but if you’re being real with yourself, how are you going to remember where you put some cardboard glasses for 7 years?

 

 

So, now I present you with a third, feel-good option – donate them.
While last Monday’s eclipse was probably the most hyped up eclipse in our history, they actually happen pretty often! Astronomers without Borders is helping communities that may not have access to eclipse glasses get prepared. They will be collecting and testing eclipse glasses before sending them to schools and institutions across the globe for free! Right now, they are getting prepared to send glasses to South America and southeastern Asia which will both experience eclipses less than 2 years away in 2019.

 

 

If this sounds good to you, throw your glasses in an envelope and send them to:
AWB Eclipse Glasses Donation Program
Explore Scientific
1010 S. 48th Street
Springdale, AR 72762

 

 

We hope you keep those eclipse glasses out of landfills and junk drawers and do your good deed for the day.
You can read more about the Astronomers without Borders Eclipse Glasses Donation Program here.

Posted by Jessica in Science, 0 comments
How to Not Go Blind During the Solar Eclipse

How to Not Go Blind During the Solar Eclipse

In case you haven’t heard, it’s dangerous to stare directly at the sun.

On August 21st, 2017, hundreds of thousands of people across the Continental United States will be doing exactly what their mothers warned them not to do – staring directly at the sun. Staring at the sun on a normal day is fairly bad and can cause plenty of UV-related issues to your eyes. However, on the day of the “Great American Solar Eclipse”, the sunlight will be even more dangerous. Looking at a partial eclipse can literally burn the image into the back of your eye. Scary, right? Well, don’t worry – there is a safe way to view the eclipse! Check out some tips below:

 

  1. Plan Ahead
    Just head over to NASA and you can see the exact path the sun will be taking! Knowing the times can help you plan a party or viewing, know when to grab your glasses, and help you be prepared. For traveling, remember that crowds will be all heading toward totality so accurately plan for extra traffic; that way you aren’t stuck on the freeway during this one in a lifetime event.
  2. Solar Eclipse Glasses
    As much as we know you love your Fuse lenses, even our darkest lens (which is Fuse +Plus Glacier BTW) lets in around 8% of light. In contrast, eclipse viewing 
    glasses only let in about 0.003% of light as well as reducing radiation. These are specialty glasses that you absolutely need if you plan on looking up, even if you do not live in the path of totality. 
  3. Test Them!
    A lot of manufacturers know that Americans are jumping on the solar eclipse wagon and are unfortunately pumping out glasses without accurate testing and false ISO ratings. To ensure your glasses are safe, you can check out the American Astronomical Society’s list of reputable dealers here. When you put them on, they should be so dark that you can not see anything at all – no other light sources – until you look up at the sun.
  4. Keep Them On!
    If you live in the path of totality, you can take off your glasses ONLY during the totality phase of the eclipse. Even the slightest band of sunlight peeking through is still very dangerous to your eyes! Keep the glasses on until your vision is totally blacked out; then, you know it’s safe to take them off (but only for a minute or two).
  5. Save the Puppies! (Or Not)
    OK, I’ll admit the first thing I googled was whether or not my dog needs solar eclipse glasses. However, most pets should be good! It definitely wouldn’t hurt to affix them with a pair (and it would make for a cute picture). But, on a normal day how often do you stare at the sun? Probably zero times because it hurts. Our animals are the same way and they likely won’t know the difference between E-Day and any other day. I would just limit outside time, leave them at home while you’re at eclipse viewing parties, and keep the blinds shut.
  6. Be Camera Wary
    It is definitely a once in a lifetime experience that some people probably want a picture of. However, looking through cameras and binoculars, even with eclipse glasses on, concentrates and magnifies light – which is very dangerous. Many companies sell eclipse filters for your camera so you can eclipse-proof your equipment! You will need one if you plan on photographing this event. However, because of the distance, brightness, and many other factors it can be hard to get a good eclipse picture. Unless you are a professional, maybe just spend your time enjoying the eclipse instead of being frustrated behind the lens. 

We hope this helps you safely view the eclipse. We definitely aren’t eclipse experts; if you are interested in having the best eclipse experience possible, we recommend you go check out Eclipse-101 at NASA.gov. NASA has everything you’ll need to know and will even have a live stream of the eclipse on the 21st! 

 


Header Image from NASA.gov

Posted by Jessica in Safety, Science, 0 comments
Sunglasses are all about fashion… right?

Sunglasses are all about fashion… right?

 

Wrong!

Actually, I’m not sure if anyone really believes that sunglasses are only for fashion since everyone knows they serve another important purpose – protecting your eyes! However, I am sure that not many people really understand why you can get sunglasses with so many base tints. You can get a brown, green, grey, rose, yellow, and more! And, I’m happy to report – it isn’t just a marketing scheme.

Each of these tints help accentuate colors and create contrast in the world around you. So, at first when you try on a pair with a more copper tint, you may feel a little strange – like you’re viewing the world with a copper sheen. However, you should still be able to accurately recognize colors for what they are, and you should notice the increased contrast. This can help you gain an edge in many sports and outdoor activities, especially those in which you are traveling fast – where you may not be able to identify all the dips and dangers on your path.

As to which you tint should choose, I hate to say that it really is up to personal preference. If you haven’t tried any different tints out, do! A good starting point is looking at whether you’ll be on even or uneven terrain. Browns, roses, and yellows are suggested for athletes with uneven terrain. For instance, if you are a trail runner or cycle through the woods you may benefit from the increased contrast these lenses have to offer. If you are running, cycling, skateboarding, or even just walking fast on the even terrain of a road or sidewalk, a grey tint will work just fine and provide a nice, neutral view. This is also why most of our mirror lenses are on grey bases. This allows for maximum versatility, all while staying flashy. 
You can check out our lens colors here. If you need more help choosing the best tint for your activity, check out this blog post or you can always email our customer service team at eyecontact@fuselenses.com for help!  

Posted by Jessica in Science, Sport, 2 comments
Limited Edition Spring Tints

Limited Edition Spring Tints

Fuse is so excited to announce the release of our first limited edition colors! We were feeling the spring season this year and decided to offer some pastel tints to put some spring into your glasses too! Our three tints named Coral, Orchid, and Ocean will be sure to make you more fashionable, more awesome, and have you feeling like it’s springtime, all the time. Check them out now. 

Orchid

OrchidOrchid

30% Visible Light Transmission

100% UV protection

Wear your true colors.

This cool, purple tint will have you walking around with an air of nobility. Perfect for both stepping up your style and/or reminiscing on the disco era. 

 

 

 

Coral

CoralCoral

53% Visible Light Transmission

100% UV protection

See the world through coral colored glasses.

…or is that not the saying? If it isn’t, it should be. This rose-orange tint is the key for keeping up the illusion you are living in sunny springtime, all the time.

 

 

 


OceanOceanOcean

30% Visible Light Transmission

100% UV protection

Breathe in the salt air.

These calming all blue gradient tints start out a darker teal blue at the top, and fades to a lighter blue. It’s kind of like you’re wearing the tranquility of the sea on your face.

 

 

 

Posted by Jessica in Colors, 0 comments
Do Sunglasses Make You More Attractive?

Do Sunglasses Make You More Attractive?

With Valentine’s day coming up, many people are longingly looking at those with baes, or vying for a date at a local bar. But, what if I told you that there is a way to increase your “je ne sais quoi” when it comes to nabbing a prospective partner? Well, (as you may have guessed due to the constant theme of this blog) the answer is to wear shades. Here are four reasons why, when on the prowl, you will never want to leave the house without them:

Jessica

We had two victims from the Fuse Team. You can tell us if sunnies helped their overall look. This is our social media manager (a.k.a. me).

1. Symmetry
It has been found over and over again that there is one very important characteristic in societal perceptions of attractiveness – symmetry. Unfortunately, no one really has a perfectly symmetrical face. You may think you look pretty good, but everyone has tiny oddities that equal out to being not-so-symmetrical. By wearing sunglasses you are hiding those asymmetrical oddities. Your face becomes more balanced and your bone structure is enhanced. Thus, you become more attractive. Just take a look at the pictures of our willing victims…I mean models. Although their mothers love ‘em, we do believe they become better looking donning a pair of Fuse Lenses.

2. Mystery
Who doesn’t want an exciting, mysterious man (or woman) to come in and sweep them off their feet? That’s right – everyone wants that. Being that humans take many social clues from the eyes, eye contact leads to many connections or assumptions. For instance, if your date tells a joke and you aren’t really into it, they can tell almost instantly if you are fake laughing or smiling (since true smiles engage the eyes as well). But, throw on a pair of sunglasses and your sham smile becomes almost impossible to figure out. By concealing your eyes with sunglasses, you make yourself more difficult to “figure out” and thus, more compelling.  

This is Peyton. We think he rocks those sunglasses. Although, he may already be too cool for school, considering he has his very own soundcloud.

3. Confidence
Wearing sunglasses also gives the wearer benefits. On the same note, by concealing your eyes you can feel as if you are less likely to be recognized or are at less risk of scrutiny. This can empower the sunglasses-wearing person to behave more boldly and take more risks than they typically would. This could give you the confidence you need to land the girl (or guy) that you typically wouldn’t impress.

4. Cool Factor
Sunglasses have an inherent “cool factor” that they may never shake. They are a relatively modern accessory that were introduced around the 1920’s but didn’t pick up in sales until a few decades lader. Before their commercialization, sunglasses were used to shield eyes in more extreme sports, associated with modern technologies like airplane travel, or used by the Hollywood elite to help block paparazzi camera flashes. This means that sunglasses carry a sort of edginess and glamour in our culture, even today. Think about the coolest cat you know – in your head, right now, they are probably wearing sunglasses (and a leather jacket).

 

Now, before we send you out with your shades to find a mate in the February wild – we do think you should take a moment to find the perfect sunglasses for you face. While you’re at it, you should also grab one of Fuse’s eye-concealing mirrored lenses to boost up your confidence a little more, and stay lookin’ fly with some freshies. Good luck out there.

Read more:
The National, NYMag

Posted by Jessica in Science, 2 comments
Driving in the Rain

Driving in the Rain


There is only one thing worse than driving, and that is driving in the rain. We’ve all been there – a few drops fall from the sky and suddenly everyone forgets how to drive. The windshield becomes smudged with rain and visibility is lowered (and is it just me, or does everyone forget they have a turn signal?). Well, there is one thing you can do to ease your driving-in-the-rain pain – wear sunglasses.

No, I’m not crazy – and not any old pair of sunglasses will work. Regular, tinted sunglasses simply darken the world around you. To help combat the effects of rain, only polarized sunglasses will do. This is because Polarized sunglasses do more than just darken your view and block UV. Polarized sunglasses kick glare’s butt! Glare is blinding, reflected light that gets bounced off surfaces into your eye, or in this case – light that gets scattered in the rain drops. The polarization helps to eliminate the blindness caused from glare, as well as help you see further in the rain.

**Don’t know if your lenses are polarized? Check out our polarization test!

However, beware of your tint. Unless it’s a quick sun shower, the sky typically turns to a gloomy grey. Wearing too dark of a tint in that condition would lower your visibility, making it more dangerous to drive – polarized lenses or not. The ideal driving tint for medium to low sunlight is going to be above 18%. That means that 18% or more of visible light passes through the lenses, and it is suitable for conditions below very bright sunlight. If you don’t own a Spectrophotometer to measure your lenses’ exact VLT (like most of us regular folks), just use your best judgement. If the world looks too dark though your sunglasses – it probably is. 
Finally – be smart. Rain or fog that is too heavy and affects visibility too much is unsafe to drive in – sunglasses or not. Pull over anytime conditions are too bad to drive! And, as always you can ask us any questions you may have about what lenses are suitable for any activity, driving included!

Posted by Jessica in Safety, Science, 1 comment
Nova: Fuse +Plus Exclusive

Nova: Fuse +Plus Exclusive

Introducing Fuse’s First Fuse +Plus Exclusive Color! 

Nova is a stellar multi-colored Red Mirror on top of a grey base lens. This means that Nova’s mirror has hints of not only red, but also purple, orange, and yellow when viewed from different angles. This gave us inspiration for the name – Nova. A Supernova is a brilliant explosion of a star at the end of its life. A supernova can briefly outshine entire galaxies with its power and leaves behind the brilliant colors of a nova-3nebula in its wake.

Despite the vivid colors on the mirror – looking through the lens, Nova still keeps a neutral/warm grey view. The Grey view makes Nova a perfect everyday lens! Grey lenses are perfect for keeping colors true, while cutting through the bright sun. Plus, you get all the benefits that our Fuse Lenses +Plus line has to offer:

Lens Science


NOVA LENS FEATURES
 nova-dude
  • Increased scratch resistance
  • Clear Guard: Hydro-oleophobic coating
  • Ion Anti-Reflective backside coating
  • Polarization to combat annoying glare
  • Bulletproof Polycarbonate material
  • Superior Optical Clarity

 

shop-now-tear

Posted by Jessica in Colors, 0 comments
Can Sunglasses Expire?

Can Sunglasses Expire?

Research recently surfaced in Brazil that showed that our favorite sunglasses might start to work against us.

Scientists at the University of São Paulo developed an aging test to see how well sunglasses stood up to UV exposure over time. Turns out – not so great. It looks like after 2 years of everyday sun exposure of 2 hours per day, the UV protection may deteriorate. Of course, risk and exposure is higher in countries like Brazil – they are closer to the equator and have a higher UV index. 

The sun might actually start to deteriorate sunglass lenses over time.


This has still opened up discussion into why there is no recommendation on when to update your sunnies and why there is no current standard for testing the longevity of lenses. We know that UV exposure can lead to everything from cataracts to retina damage, and even skin cancer developing around the eyes!

Despite these initial findings, there won’t be any official recommendations until more research is done and more is known. However, you can definitely take steps to ensure that your eyes are safe! Make sure to buy lenses that are 100% UV protected, or labeled “UV400.” Also, keep in mind that while polarization, tints, and mirrors are some cool features of lenses – those do not correspond to UV-protection. Even clear lenses can protect from the sun’s UV rays – ours do!

Whatever the case may be, here at Fuse we were always way ahead of them – we replace our lenses all of the time! So, if you have been reading any of these articles warning you to ditch your worn-in favorite pair – step away from your trash can and replace the lenses instead! (duh)

Read More: Huffington Post

Posted by Jessica in Science, 0 comments
Why Ion?

Why Ion?

ion-coating-graphic

What is Ion?

When making improvements to our line of Fuse +Plus, we added the Ion coating to the back of every lens. But, what does it even do?

Fuse Lenses’ Ion, or anti-reflective, coating is a microscopically thin layer that is applied to the back of your lenses to combat back glare. Back glare happens when light hits the back of your lenses and bounces into your eyes. This can be distracting, and even dangerous, if it happens at the wrong time. Luckily our Ion coating eliminates that reflected light and also provides key benefits that make you wonder how you ever lived without it:

Improves Vision

It’s amazing what you can see when your eyes aren’t flooded with unwanted light. An Anti-Reflective coating can help improve visual clarity by helping the filtering of light through your lenses. Not only does this absorb reflection, but it also improves overall clarity by blocking that distracting light, and allowing more good light to reach your eyes.

Reduces Eye Strain

In today’s society, many people complain about increased eye strain from holding a job where they are sitting in from of a computer all day. An anti-reflective coating can help to increase eye comfort. Fuse even offers a “Gaming” lens, which is a yellow tinted lens with our Ion coating, to be worn while on the computer to combat eye strain right at the source.

Ace Accuracy

Another popular use of lenses with an Anti-Reflective coating is for shooting, archery, or other sports that require precision. The addition of the backside anti-reflective coating can improve clarity by combating annoying reflections, and increase a sportsman (or woman)’s overall accuracy.

How is the Ion Coating Applied?

The first step in the process is to thoroughly clean the lenses and inspect them for defect. Even a microscopic scratch or the tiniest smudge can drastically affect the coating process. Typically, the cleaning process includes multiple washing and rinsing baths along with a final air drying process, where the lenses are heated to ensure all moisture is removed from the lenses.

Next the lenses are loaded into a special machine where they start to rotate. The spinning of the lenses is crucial for an even application. The machine then sucks out the air to create a vacuum chamber and can heat and cool itself to extreme temperatures in seconds. The coating is then applied to the rotating lenses by evaporating it onto the lens.

The whole process takes around 30 minutes to an hour, and the final result is a microscopically thin layer on the back of your lens.

Do my lenses have it?

Each new Fuse +Plus lens will have an Ion coating. You can tell the coating is there by a faint blue/purple, or sometimes green, shimmer to the back of the lens. It is most visible underneath a direct light source. It looks almost like a very subtle mirror coating on the back of the lens.

Posted by Jessica in Science, 2 comments
Polarized Lenses

Polarized Lenses

Who, What, Wear Polarized Lenses

I’m sure we’ve all heard of polarized sunglasses. I’m sure we all know someone who swears by them. But, what are they? How do they work? Well, all you have to do is read on, and by the end of this blog post you will become an expert on polarized lenses. Or, at least pretty close to one.

How does it work?

polarized

Polarized lenses were invented in 1936 by Edwin H. Land after the discovery that light waves, which are usually erratic and vibrate in many directions, become aligned in one direction after bouncing off of a surface. In other words, after light hits a flat surface, such as the water or road in front of you, light starts moving in the same direction: horizontal. That horizontal light is what we perceive as glare.

Polarized lenses work by blocking out all of that horizontal light. Kind of like a mattress trying to fit through a doorway. The mattress (light) cannot pass through the doorway (polarized lenses) if you turn the mattress horizontal (glare). But, if you turn the mattress vertically (good light), it will pass through, no problem.

Benefits of Polarized Lensesquite-literally

  1. Blocks Glare
    This is the most talked about, but also, most important benefit of polarized lenses. Not only does blocking glare improve your vision, it also improves your safety. If you drive on a sunny day, and light bounces off of something just right, the glare can blind you for up to 5 seconds. Which, in a car, is the length of a football field. A lot can happen in that time.
  2. Increases Color Contrast
    Beyond blocking glare, polarized lenses can allow you to see the world like never before. Through polarized lenses, everything looks crisp and clear, which can vastly improve the details you perceive in everyday objects. It opens up your eyes, quite literally.  
  3. Reduces Eye Strain
    Another perk of polarized lenses are that they do open up your eyes! Everyday squinting into the sun as you walk down the sidewalk or across the beach is often commonplace. Well, not anymore. With polarized lenses, you can finally give your eyes a break and give yourself a more comfortable viewing experience in the process.
  4. Steps up your Fishing Game
    You may notice that many fisherman or water-sports enthusiasts are also polarized lenses enthusiasts. This is because there is a whole world just beneath the surface of the water that you don’t know about without polarized lenses. Because they block the glare and haze caused by light bouncing off of the water, polarized lenses make water-sports more enjoyable because you can see into the water and out to objects in the distance

Tinted Lenses v. Polarized Lenses

Tinted lenses (non-polarized) are great for reducing brightness, but they do not eliminate blinding glare like polarized ones do. Plus, despite common belief, even darker tinted lenses do not help with glare any more or less than their lighter counterparts. So, with all of the benefits that polarized lenses have to offer, why do tinted lenses still exist? Well, there are just a few instances where polarized lenses can be unsuitable:

  • Pilots – Because most LCD screens use the same polarization as your lenses, they can interfere with one another, causing the screen to black out. While some airplanes do not use LCD screens, you will definitely want to check before take off.
  • Sensitive Eyes – Because we view the world differently through polarized lenses, some people with more sensitive eyes can experience headaches or nausea and do not adjust to the change. If you experience only minor issues, you can often combat them by making sure that you are buying high-quality polarized lenses.

Are my lenses polarized?

After learning about all of the glare-blocking and butt-kicking abilities that polarized lenses possess, you might be gazing at your sunglasses wondering if you have them. Well, lucky for you, it is SUPER easy to find out! Try either of the following methods:

Pop ‘em out!

First, find a sheet of bright white paper. With your lenses removed from your glasses, hold one lens over the other on top of the paper. Then, start to turn the top lens. As the top lens turns vertically, you should be seeing it get darker and darker. Once the top lens turns completely vertical, you should see it completely black out! This is because the bottom lens in still blocking that horizontal light, and the top lens is now blocking vertical light. This means that where they intersect, no light can pass through.

Polarized Lenses

Grab your computer

If you don’t feel like popping out your lenses, you can leave them in place for this test. Just find a back-lit LCD computer and look through your lenses at the screen. Next, start to rotate your glasses. If they are polarized, the lenses will start to get darker and black out at some point (typically around 90 degrees). The point that they black out at just depends on the angle of polarization. This test works for the same reason that pilots often can’t fly with polarized lenses – because LCD screens use the same anti-glare technology as your lenses.

polarizedcomputer

 

 

There you have it! That’s everything you need to know about Polarized lenses. We hope you are now an expert and will spread the knowledge to friends and family! But, if you do still have questions, feel free to reach out to our customer service, or just leave a comment below! We don’t mean to brag, but we pretty much live and breathe lenses here at Fuse Lenses.

Posted by Jessica in Science, 7 comments