One minute understanding of polarizers

Polarized light can be divided into three types: linear polarized light, elliptical polarized light and circular polarized light. Generally, the so-called polarized light refers to linear polarized light, also known as plane polarized light. The vibration of this kind of light wave is fixed in a specific direction, the propagation path in space is a sine curve, and the projection on the plane of vertical propagation direction is a straight line.

Principle: when the polarizing filter lens is filtered, it is filtered by the shutter structure of black crystal, and the remaining useful vertical light enters into the eyes, so as to block the reflected light, and feel comfortable and clear.

Usually, sunlight shines in all directions. When it hits an object, the light will reflect back to form two kinds of light, horizontal and vertical. Horizontal light will cause dazzled random reflection light. Polarized glasses can filter these reflected light. In fact, it is composed of seven layers of thin sheets.

Polarized light filter layer is made according to the polarization principle of light. Its material is composed of vertical molecules (the principle of louver), which can filter the dazzling reflected light and scattered light, and make the disordered light into parallel light into the eyes, thus having the function of eliminating glare, more effectively weakening the strong light and making the field of vision clearer.

There are too many light sources in life that will produce harmful light, especially sunlight. The light emitted from sunlight includes visible light, infrared light and ultraviolet light.

Polarizing sunglasses have the function of polarizing light, so they can block all harmful light without affecting the transmission of visible light, and can really achieve the function of eye protection.

Generally speaking, polarizers play the role of blinds, blocking the strong light so that people can see the object more clearly. You can wear polarizers in your daily life, whether it's sailing, outdoor activities or driving out at night.

In the summer with dazzling sunshine and frequent thunderstorms, remember to put a pair of polarized sunglasses in the car.

Polarized lenses are universally recognized as suitable for driving. When light is emitted from the surface of an object, it is partially polarized to produce glare. The reverse effect of glare: to enhance brightness and reduce color saturation; to blur the outline of the object and make the eyes tired and uncomfortable. The polarizer is made according to the polarization principle of light. It has the special function of effectively eliminating glare, filtering the disordered light, improving the driver's vision and increasing the driving pleasure.

The polarizing lenses are also classified, and the optical level is the highest level of the solar lenses. It requires that the "sphericity" and astigmatism of the lenses be "0". It also requires that the flat curvature conform to the European standard CE. The polarizing lenses can ensure that people who drive for a long time can maintain the best visual sense.

Classification of Polarized Sunglasses

Polarized sunglasses can be divided into:

Ski goggles

Fishing glasses

Polarized driving mirror

Outdoor sports mirror

Golf glasses

Because polarizers can block harmful light 100%, outdoor activities, such as skiing, fishing, water activities, etc., can completely block harmful light sunglasses to avoid glasses injury or fatigue.

How to distinguish polarized sunglasses?

1. A mobile phone with liquid crystal display, through the polarized sun lens to observe the liquid crystal screen, and rotate the screen at the same time, the liquid crystal screen seen will turn black with the rotation of the polarized sun lens, which is caused by the polarized sun lens filtering the light in the scattering direction from the screen.

2. In outdoor, the role of polarizers is obvious, which can be used to distinguish polarizing sunglasses from ordinary sunglasses.

Polarizing mirror test card, through the polarizing sunglasses, you can see the figure that the naked eye can't see. 

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Composition of glasses

1. Lens: the part embedded in the front ring of glasses, one of the most important components of glasses.

2. Bridge of nose: the accessory part connecting the left and right eyes.

3. Nose support: support when wearing.

4. Pile head: the joint between the mirror ring and the mirror angle, which is generally curved.

5. Mirror leg: hook on the ear, movable, connected with the pile head, plays the role of fixing the mirror ring. When matching glasses, pay special attention to the size of the mirror leg, which is directly related to the wearing comfort.

6. Screws and nuts: metal fittings for connection and locking.

7. Locking block: tighten the screws to fasten the locking blocks on both sides of the opening of the mirror ring, so as to fix the role of the lens.

Types of glasses

1. Myopia glasses: glasses that are used to correct vision and enable people to see distant objects clearly. The purpose is to keep the ciliary muscle of the eyeball in a certain regulatory capacity. Generally speaking, it's hard to see things five meters away. It's time to check your eyesight.

2. Sunglasses, Sunglasses: block ultraviolet rays, protect eyes, can also be used for decoration.

3. Decoration with glasses: fashionable, distinctive glasses, matching with clothing and other functions, not functional.

4. Presbyopic glasses: glasses used by people with presbyopic eyes. It is mainly used for the middle-aged and old people to supplement their eyesight.

5. 3D glasses: the most advanced "time division method" is adopted, which is realized by the synchronous signal between 3D glasses and display.

6. Night mirror, driver's mirror: night mirror is an auxiliary observation tool based on night vision technology and with the help of photoelectric imager. Driver's mirror and motor vehicle's eyes suffer more serious light pollution such as glare during high-speed driving.

Glasses frame material

1. Pure titanium: in the glasses industry, pure titanium frame usually refers to the frame made of a titanium material.

2. Memory board: made of high-tech plastic memory board. At present, most of the plate components are acetate fiber, and a few high-grade mirror frames are propionic fiber. It is specially designed for the majority of fashion people and students who pursue quality life, especially young women.

3. TR90: tr-90 (plastic titanium) is a kind of polymer material with memory. It has good toughness, wear resistance and friction resistance. It can effectively prevent the damage to eyes and face caused by the fracture and friction of mirror frame during the movement.

4. Titanium alloy: titanium alloy is based on titanium and other elements. Titanium alloy has high strength, corrosion resistance and heat resistance. Ultra light super elastic frame can be made very thin.

Now more and more people are wearing glasses. Whether they are primary school students, adults or the elderly, they will wear glasses. Glasses will soon become a necessity for people. Glasses are not only a functional function, but also a decoration and matching item.

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There are hundreds of retro glasses. Some of them are suitable for fresh. Some of them are old-fashioned. How to match them is more fashionable. Here's how to wear them.

There are hundreds of retro glasses. Some people can smell the strong taste of culture, youth and freshness when they wear them. Some people are a bit old-fashioned and bookish. How to match them is like being on the cutting edge of fashion. Let's wear them.

Intelligent denim shirt + tights are indispensable

Denim shirt is the most basic style, with the casual flavor of denim. Once you put it on, you can fully show the intellectual beauty, and then match it with the tights of the lower body to present the beauty of the figure curve, plus the retro glasses, you will not be bookish at all!

Hats and glasses are perfect for sexwoman or man

Like more neutral style girls, you can add a gentleman's hat, match with a soft long hair, use the hat and retro round glasses, let the whole show a playful and handsome.

Colored sunglasses are the key

Colored sunglasses are a good match, which is called handsome. If you don't match them well, they are vulgar. As long as you match them with a sweet dress, you can immediately show different styles and make people have a good look. 

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