What is the difference between polarized and non polarized sunglasses?
What are polarized sunglasses?
Polarized sunglasses have polarized lenses, which contain a special polarizing filter inside the lens, which effectively reduces intense flashes of light and glare caused by horizontal light waves, such as reflected light from water, snow or shiny surfaces. Polarized sunglasses are particularly suitable for outdoor activities such as water activities, where clearer vision is required or where there is a particular sensitivity to glare, such as driving, fishing, skiing, hiking and beach activities.
Key features and functions of polarized sunglasses:
Glare Reduction:
Polarized sunglasses avoid glare from reflections of light by blocking light horizontally through a polarizing filter. This glare is often seen in bright outdoor environments such as water, snow, car windows or road surfaces. Polarized sunglasses significantly reduce glare and provide a clearer, more comfortable viewing experience.
Enhanced Contrast:
Polarized sunglasses are effective in improving visual contrast. They reduce the interference of scattered light, making objects more sharply defined and details more visible. This helps to improve visual perception and detail recognition, resulting in a sharper image.
UV Protection:
Polarized sunglasses also have the ability to block ultraviolet (UV) radiation, which helps protect your eyes from UV damage. Prolonged exposure to UV rays may cause eye damage.
What are non-polarized sunglasses?
Non-polarized sunglasses are sunglasses that do not have a polarizing feature. The lenses of these sunglasses do not have a built-in polarizing filter and do not have the property of reducing horizontal light waves and glare.
Non-polarized sunglasses usually have the following features:
UV protection:
Most non-polarized sunglasses offer protection from ultraviolet (UV) radiation. They filter out harmful UV rays and help protect the eyes from UV damage.
Color effects:
The lenses of non-polarized sunglasses usually come with color filters, such as gray, brown, and green. These color filters can change the color and brightness of ambient light, thus affecting the perception of color. Different color filters can produce different effects, such as enhancing contrast, reducing glare, and adjusting tint. These effects help provide a more comfortable visual experience and adapt to different lighting environments.
Wide applicability:
Non-polarized sunglasses are very common in daily life and are suitable for a variety of outdoor activities such as walking, shopping, and socializing. They provide basic eye protection and a comfortable visual experience without the requirement for special resistance to glare.
Polarized Sunglasses vs. Non-Polarized Sunglasses:
The main difference between polarized and non-polarized sunglasses is their ability to reduce glare and improve visual clarity in different situations.
1. Glare Reduction
Polarized sunglasses are specifically designed to reduce glare caused by horizontal light waves, such as reflections from water, snow, or shiny surfaces. They contain a special polarizing filter that blocks the horizontally polarized light that creates intense glare, allowing your eyes to see richer colors, sharper contrast in shadows, and clearer surroundings.
Non-polarized sunglasses only reduce the intensity of the light and do not provide the same level of glare reduction.
2. Visual Clarity
Wearing polarized sunglasses without being subject to glare and its more irritating (or even dangerous) effects, visual clarity can be enhanced by selectively filtering out glare and certain light frequencies, which reduces light scattering and provides a clearer field of vision, especially in bright outdoor environments.
Non-polarized lenses do not have this filtering capability, and may not provide the same level of visual clarity in conditions prone to glare.
3. Outdoor Activities
Polarized lenses are commonly used for outdoor activities such as driving, fishing, skiing, and water sports, where glare is a major concern. In this case, they can help improve visibility and reduce eye strain. Gray, brown, and amber polarized lenses are good for daytime driving, while clear polarized lenses are best for nighttime driving.
Non-polarized lenses are more versatile and can be used for a variety of everyday activities, where glare reduction is not a major concern.
4. Display Visibility
Polarized lenses sometimes interfere with the visibility of certain electronic displays, such as LCD screens on automobile dashboards, or certain digital screens. This can result in a darkened or distorted display.
Non-polarized lenses do not have this effect and allow for better visibility of electronic displays.
5. Protection from UV radiation
Both polarized and non-polarized sunglasses provide UV protection and reduce the harmful effects of the sun's ultraviolet (UV) radiation. They both filter out harmful UV rays and help protect the eyes from UV damage.
