The first way to check for good polarization in sunglasses is looking for a uniform tint across the entire lens, with no blotches or spots. A lot of manufacturers use a "polarized coating" that can rub off or deteriorate over time.

Luminit's Light Shaping Diffuser® is available in three type of angles: circular, elliptical, and extreme angle elliptical (also called linear). Circular angle diffusers are popular across multiple industries and spread a light source into a wide circular pattern depending on the angle selected. Our standard angles include 80°, 60°, 40°, 30°, 20° 10° and 5°. That is, if you purchase a 40° circular diffuser, the beam will be spread 40 degrees in every direction. This makes circular diffusers a popular choice for spotlights, downlights, flashlights, etc., where the light beam of LEDs is narrow (i.e., directional).

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Because the principle of surface scatter is used instead of volume or bulk scatter, our LED diffuser sheets have a much higher transmission efficiency (~92%) than a conventional LED light diffuser. Holographic Light Shaping Diffusers® offer superior optical transmission between 400nm and 700nm. Depending on the angle of distribution, Luminit LED light diffusers achieve between 85% and 92% transmission efficiency. The low backscatter of the diffuser structures are anti-reflective in nature and utilize light that would otherwise be wasted due to Fresnel loss. A clear piece of polycarbonate substrate is 89% transmissive. With a Luminit LED light diffuser added, transmission improves to 92%.  Note that Luminit measures transmission utilizing an integrated sphere with the Light Shaping Diffuser® structure incident to the light source.

There's a reason Luminit is one of the leading light diffusing manufacturers in the world. We have the largest catalog of LED optical diffuser sheets and light bending material as well the most angles and formats available to diffuse LED lighting for architectural environments, bio-medical illumination, semiconductor metrology, aerospace, automotive, laser and display applications. Our optical diffusion technology is based on a very thin microstructure on top of the clearest substrates available. The transmission efficiency of our thin film and thick rigid diffusers is practically equivalent.

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Do you enjoy spending time outside or on the water? Proper eye protection is essential, especially for those extra sunny days. One type of sunglasses that has become increasingly popular for outdoor enthusiasts are polarized sunglasses. These sunglasses not only reduce eye strain but provide 100% UV protection, making them the perfect companion for those who spend time outdoors.

Polarized sunglasses are an excellent choice for anyone who spends time outdoors, particularly those who spend time out on the water or in sunlight. Some things to consider when deciding if polarized sunglasses are right for you include:

When you turn lenses to a 90-degree angle, the vertically polarized light (perceived as glare) goes right through the lenses.

Most sunglasses have a special film that is applied when being manufactured. This film contains a chemical compound, which is made up of particles that align the light in rows; think of blinds on a window. The microscopic filter is created which blocks light waves orientated in the same direction. This is what makes your sunglasses polarized!

You may not see the technology behind a Luminit Light Shaping Diffuser®, but you'll notice the effects of our optical diffusion lenses and light shaping diffuser film for LEDs. Light Shaping Diffusers® expand what’s possible with light using Luminit's advanced holographic beam shaping technology. Unlike conventional plastic light diffusion panels, Luminit's patented technology shapes light energy with holographic patterns embedded on polycarbonate film or rigid sheets. These patterns create a pseudo-random surface that can manipulate light by changing the direction of its energy. Available in both circular and elliptical formats, the diffusion ability of Luminit LED lighting diffusers is remarkably efficient, so high efficacy fixtures are possible. Many of our customers use Luminit diffuser sheets to diffuse LED strip lights to hide hotspots and produce a more uniform, homogeneous appearance. We also have the largest library of circular and elliptical beam angles in the world, ranging from 1° to 100° so there is an angle to tackle just about any application.

At Tifosi Optic's our polarized sunglasses are made with a layer of injected polarized material not just a coating like other brands. This means the tint will not peel off making it much more durable. Plus, each lens will block 100% of harmful UV rays. Keeping you protected and squint free all summer long.

Choosing between polarized and non-polarized sunglasses can be a hard choice if you are not well-versed on the topic. You might be asking questions like: what does polarization even mean, can you tell the difference between good and bad lenses, and what are the benefits?

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Essentially, polarization is tinted lenses that reduce glare on horizontal surfaces like water or roads. The waves of light travel in different orientations (vertically, horizontally, and everything in between), and because of this, our eyes perceive the vertical polarized light as glare. It works by filtering the unorganized light that causes glare from these surfaces, thereby diminishing the reflection of the sun.

Not all polarization is created equally. There are a few things to look out for to ensure you are purchasing a high-quality pair of polarized sunglasses. Including a simple test to quality check.

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Light Shaping Diffusers® use surface relief structures that are replicated from a holographically-recorded master. These pseudo-random, non-periodic structures can manipulate light by changing the direction of its energy. The result is the elimination of Moiré, color over-angle, and precise angular beam control.

Elliptical diffusers incorporate two different angles in order to spread light asymmetrically and diffuse one axis more than the other. Elliptical angle diffusers are help lighting designers highlight a specific area more than another area. Our standard elliptical diffuser angles for lighting class include 80° × 50° and 60° × 10° and are commonly used in hallways and specialty lighting to highlight a specific area. Stairway lighting is a good example of how our elliptical angles can highlight the walls but place more light toward the stairs for obvious safety reasons. Extreme elliptical angle, or linear, diffusers such as our 60° × 1° (i.e., 60° along the width and 1° along the length) are commonly used in wall washing, wall grazing, and cove lighting applications where the beam angle must not increase in one axis. We have a helpful blog that covers our extreme angle diffusers in more detail.

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This time the blotching is reversed. If molecules of the filtering film are not aligned evenly, they will not reduce glare evenly.

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Good polarization can truly make all the difference. At Tifosi Optics, we use a layer of injected polarized material on our sunglasses. Meaning that your polarization will not rub off over time, making high quality sunglasses.

Our Light Shaping Diffusers® are bending, shaping and enhancing light beams in automotive lighting, exterior/interior lighting, in stages and concert halls, projection systems, monitors and displays, bar code scanners, and more. Our LED diffusers are sculpting light in some of the world's most famous landmarks.

Next is a rotation test. In order to conduct the experiment, you must have two pairs of polarized sunglasses. Take one pair of sunglasses and keep the other directly in front of you.

Circular, elliptical, and extreme elliptical diffusers not only provide precise beam angle control, but our diffusers homogenize LEDs and fluorescent lamps and clean up striations for pleasing, human centric lighting.

In 2003, we set out to create an eyewear brand with a focus on sport sunglasses that stood for quality, performance, style and value. Tifosi has grown to become a trusted brand in sports and with athletes.

“Hotspots” and uneven light distribution are common problems with filament, arch, LED, CCFL, fiberoptic and laser light sources. Our LED light diffuser films smooth and homogenize sources while providing uniform light in critical applications such as LCD backlights, LED displays, machine vision, automotive lighting and viewing screens.

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How does a Luminit's LED hiding film help lighting designers and lighting manufacturers? Luminit diffuser sheets and films “clean up” and shape a light beam to suit a particular purpose, which makes it possible to achieve a smooth appearance or use fewer LEDs for the same effect. For example, LEDs are very efficient but hot spots and uneven light distribution remain a problem for lighting professionals. Our Light Shaping Diffuser® sheets homogenize and shape the light with 85% to 92% transmission efficiency, meaning less light loss compared to other diffusers. The above picture demonstrates options for LED strip diffusion and the effects of a 60° x 1° elliptical Light Shaping Diffuser® on an LED strip light. On the left are the bare LED diodes, and on the right are the same diodes with our light diffuser in front. The light is shaped by spreading the horizontal radiation 60° only 1° in the vertical direction (shown horizontally here). The result is the elimination of hotspots on LED lighting as well as CCFL, fiber optic and laser light sources, and a smooth, unbroken strip where the diodes are not individually visible.

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Luminit diffusers are popular in indoor and architectural lighting and can be found in some of the world’s most famous building, bridges, and structures. Our unique technology is also instrumental in high tech, display and automotive applications where we provide highly specialized Light Shaping Diffusers® and linear micro-prismatics.

Luminit LED light diffusers precisely shape, control and distribute light. The patented holographic master recording process allows a variety of circular, or elliptical light patterns, and a wide variety of standard elliptical angles are available. To find out more about how Luminit light shaping diffuser film for LEDs can solve your next challenge, contact one of our light diffusion experts.