So, no, you probably don’t need high index lenses. But when we examine your eyes and begin testing prescriptions, it’s good for us to know what materials are available for your ultimate comfort. Afterall, you’re going to be wearing your glasses all the time! If they aren’t comfortable, then something’s not right. But thanks to improvements in lens materials and having high index options, we can provide you with a best-fitting option that is both comfortable to wear and offer better vision.

Our UV protection films are designed to help protect your valuables from fading caused by the damaging effects of ultraviolet (UV) light. With 99.5% UV light reduction, our films are available in clear or tinted options, and can be purchased by the meter or cut to size to fit your specific needs. Our anti-fade window films are easy to apply and come with a scratch-resistant coating for long-lasting protection.

Yes, UV protection window film is available in both clear and tinted options, allowing you to choose the best solution for your needs. The clear film provides protection without altering the appearance of the windows, while the tinted film provides additional privacy and glare reduction while still providing the same level of protection.

Refractive indexof diamond

UV protection window film is a great first line of defense against fading of furnishings, wooden floors, and artworks. The darker the film, the more effective it is in reducing the amount of sunlight and UV rays entering a building. However, it's important to keep in mind that other factors such as air pollution, wear and tear, and the type of dye used in fabric can also contribute to fading, and window films may not completely eliminate these effects.

Refractive indexof plastic

Remember that car mileage metaphor from before? That’s a very generalized explanation. Honestly, it goes even beyond eyewear! The refractive index is a measurement of how light travels through any given material.

Yes, our UV protection window film is available by the meter or can be cut to size to fit the specific needs of your building. This allows for a custom fit, ensuring maximum protection and making the most out of your investment.

NOTE: No window film can completely prevent fading. For best results, choose a film that also targets visible light and infra red light. As a rule, the darker the film, the more efficient it is at mitigating fading.

Refractive indexof Perspex

The film works by blocking up to 99% of UV rays, preventing them from entering the building and reducing the risk of damage to skin, furnishings, and artwork. This protection helps to extend the lifespan of the interiors, ensuring their longevity and aesthetic appeal.

It seems like a small change, going from 1.5 to 1.6. But that one-tenth decimal is the difference between having coke bottle glasses and something more modern and lightweight. This is especially nice for people who require a stronger prescription. Stronger prescriptions traditionally mean the patient needs thicker glasses in order to see 20⁄20. But with these improvements in the refractive index, someone with a strong prescription can achieve 20⁄20 vision with thinner and lighter glasses.

Not only that, but understanding the index means current eyewear lenses can be picked out by a patient and favored for their prescription. It allows for us to make better recommendations and more accurate readings for what a patient needs to gain perfect vision.

Refractive indexof air

This self-adhesive material can be applied to smooth glass for an immediate effect, and is suitable for both short-term and long-term use as it can be removed without damaging the glass. Our films are widely used by heritage bodies, museums, art galleries, home owners, laboratories, and retail outlets to protect their valuable items.

Yes, our UV protection window film is easy to install and comes with a lifetime warranty, giving you peace of mind that your investment is protected. The film can be installed by most DIY enthusiasts or professionally installed by a professional installer for a seamless experience.

UV protection window film is a thin, clear or tinted adhesive film that is applied to windows to block harmful ultraviolet (UV) rays from entering a building. This helps to reduce the amount of sun exposure, thereby protecting the interiors and its occupants from the damaging effects of UV rays. UV rays can cause fading of furnishings, flooring, artwork, and can also harm human skin.

Refractive indexof water

Yes, by reducing the need for air conditioning, our tinted and reflective UV protection window film helps conserve energy and reduce a building's carbon footprint. This not only benefits the environment, but also helps lower energy costs and increase the overall efficiency of a building.

Yes, our film not only blocks UV rays, but it also helps regulate the temperature inside a building, reducing heat and glare. This makes it more comfortable for occupants and easier to see screens, improving overall quality of life and productivity.

If you’ll recall from our last blog, we dipped a little into the science behind choosing the right lens materials. Each material has something unique to offer and has its own properties, but one of the primary ways they can be deemed good enough to meet the standard of prescriptive lenses is by its placement on the refractive index.

Refractive index glasstypes

UV protection window films are designed to act as a filter by reducing ultra violet light, the main cause of fading in furnishings, by 99.9%. Our UV protection window films are easy to apply directly to your existing glass, and are available by the metre or cut to size your exact measurements. UV window film can be applied on smooth non textured glass, on your windows or doors.

Refractive indexof vacuum

At Purlfrost, we take pride in providing top-notch customer service and have received over 10,000 positive reviews on Truspilot, making us the highest rated window film company. Our website is equipped with a variety of practical solar control products available for delivery in the UK from our London office building. We offer free shipping for orders over £100.00 and typically ship your items within 24 hours of purchase using either Royal Mail or TNT for prompt delivery. Shop online with confidence at Purlfrost!

Refractive indexof lens

First, higher doesn’t always mean the lens is better. The refractive index is only one part of the equation. Other things like Abbe values (the amount of distortion or aberrations) and optics play a vital role in determining if any given material will perform more or less than any other material.

UV protection window films are designed to act as a filter by reducing ultra violet light, the main cause of fading in furnishings, by 99.9%. Our UV protection window films are easy to apply directly to your existing glass, and are available by the metre or cut to size your exact measurements. UV window film can be applied on smooth non textured glass, on your windows or doors. NOTE: No window film can completely prevent fading. For best results, choose a film that also targets visible light and infra red light. As a rule, the darker the film, the more efficient it is at mitigating fading.

The film is applied using a soapy water solution and a squeegee. This ensures that the film adheres smoothly to the surface of the window, with no bubbles or wrinkles, and eliminates the need for any special tools or equipment. Our installation tutorials can provide step-by-step guidance for a hassle-free installation.

Like any technology, understanding and refining refractive index will only advance. The glasses we have today will seem archaic in the future, simply because technology is always improving. By understanding the refractive index, scientists can look for more ways eyewear can be innovated.

Light is refracted differently in certain materials. The way it refracts in water is different from how it refracts in plastic or glass. It all depends on the material and the density of said material of what the light is hitting. The refractive index measures how efficient this refraction is. The higher the number on the index, the slower light travels through the medium, the more the light is bent, and ultimately – the more efficient the refraction is. For the use in eyewear, a higher score on the index means less material needs to be used to achieve a desired effect.

Sometimes a higher index isn’t always the best solution, either. Sure, it’s good to know it exists, but high index lenses aren’t really necessary for most prescription lenses. CR-39, Polycarbonate, and Trivex all offer spectacular lens options without having a 1.60 score like our high index lenses do. It’s all about finding what fits best, without overdoing it.

MENUHomeAbout usReno Office Carson City OfficeServicesContact LensesSHOP CONTACT LENSESEye Glass LensesFramesBlogContact Us

A quick experiment at home: fill a drinking glass with water and then dip a pencil into it. You’ll notice by looking at the glass from the side how the pencil in the water seems disconnected from the pencil above the water. It’s the same pencil, but light bends in water, causing the pencil to look different. This is refraction!