Why Ion?


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?

If your lenses have the ion coating, it will show as a purple/blue sheen on the back of the lens.

If your lenses have the ion coating, it will show as a purple/blue sheen on the back of the lens.

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.


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