[Polarized Sunglasses price] How to choose polarized Sunglasses of polarized Sunglasses, how to identify good or bad

How to choose polarized Sunglasses

Many consumers see the prices on the market from tens of yuan to thousands of yuan, and the prices of polarizers ranging from tens of yuan will always have difficulty in choosing. How should they buy polarized Sunglasses?For this issue, I will introduce the precautions for the choice of polarized Sunglasses from five aspects.

Step/Method

1. The first consideration is the quality of polarized Sunglasses

The primary function of polarizing Sunglasses is to prevent ultraviolet rays and filtrate polarized light. Good polarized Sunglasses lenses can block more than 90%of ultraviolet penetration. Please choose polarized Sunglasses with the best blocking of UV400 to the best obstruction of ultraviolet logo;The inferior polarization Sunglasses of the polarizing filtering function, such as dark Sunglasses, is darker with the light of the human eye and the pupils of human eyes will become larger, and the ultraviolet rays of the eyes will increase, increasing damage to human eyes.

2. Will there be discomfort for a long time?

Genuine polarized Sunglasses have to be comfortable to wear; if you wear bad feelings such as discomfort, dizziness, headache, dry eyes, tingling, etc.Generally, inferior lenses have no technical and functional at all when manufacturing, and the lens materials are also very inferior. Choosing inferior polarizer Sunglasses cannot protect the eyes. On the contrary, it will cause damage to be worthless.

3. Select polarizing Sunglasses to focus on the protection function of the frame

The protection function of polarizing Sunglasses Apart from the basic functions such as anti -ultraviolet rays, avoiding strong light dazzling, and filtering glare, most polarizing Sunglasses frames are designed with surface arcs. In outdoor sports, it can effectively prevent wind and foreign body stimulation. In additionThe hardness of the lens and the flexibility of the frame of the frame must be considered whether it will hurt the human body.

4. The selected polarized Sunglasses should be true and natural

The color selection of polarized Sunglasses should be based on the color of the surrounding environment, the edges of the object are clear, and the principle of effectively identifying different color signal Lights.Especially when driving Sunglasses, it is guaranteed to drive safety.The color of the lens is better in gray, tea, and green, because these colors of lenses are better absorbed by infrared and ultraviolet rays, which can improve visual contrast and clarity. Wearing effects in severe air pollution or fog.

5. The identification of the quality of the polarized Sunglasses

Generally, regular glasses shops have instruments to detect Sunglasses resisting ultraviolet capacity. Through instrument detection, you can know whether the glasses in your hands have reached the standard.In addition, the simple method of testing the quality of Sunglasses is: you can use the ultraviolet light sent by a banknote test or a banknote check machine to observe the UV logo pattern on the RMB through Sunglasses. If the quality of the Sunglasses is poor and there is no obstruction of the ultraviolet rays, it can still be clearly clear.When you see the UV logo pattern on the RMB, on the contrary, if the quality is excellent, you can't see it.

How to distinguish between polarized Sunglasses?

1As well asFirst observe whether the lens has scratches, impurities, bubbles, stripes, and check the outer packaging of Sunglasses. The regular Sunglasses should be marked with the name of the name, color, diameter, quality level, production factory name and Trademark.UVAAs well asUVBandCEOnly the signs of Sunglasses can ensure that a certain ultraviolet rays are blocked.

2As well asWhen you buy Sunglasses, wear it to try whether you have dizziness and headache.There are also some myopia Sunglasses on the market for sale, but because the pupil distances and other indicators vary from person to person, so if there is no guidance of a professional, consumers should not choose this degree of Sunglasses.

3As well asTake the two corners of the Sunglasses against the sunlight with your hands, so that the reflector of the mirror surface is slowly rolled. If the mirror reflected fluorescent shadow appears wavy and distorted, it proves that the lens is uneven. Such a mirror will damage the vision.

4As well asThe lens should be flat, the sharpness should be high, the material of the Sunglasses is glass and resin, and the best Sunglasses should be polarized lenses.It is made of synthetic resin as light and precise as Contact lenses, which is synthesized by seven layers of thin slices. The two layers of the outermost layer are super -hard wear -resistant layers; the second and sixth layers are anti -crushing enhanced layers; third and fifth layers are ultraviolet raysThe filter layer, the middle layer is a polarized filter layer.Polarized lenses can effectively filter reflected light and harmful ultraviolet rays, and have functions such as anti -crushing and abrasion. They are the most popular Sunglasses.

5As well asIn addition to the color, face, and dressing of Sunglasses, the color of the Sunglasses should also be selected according to the place of entry and exit.Generally speaking, black, tea, and gray filtration effect is good; gray lenses can be absorbed balanced with any chromatography, and the scenes seen after wearing a mirror will only get darker without obvious color difference;Blu -ray can improve visual contrast and clarity, and wearing effects in severe air pollution or fog.

6As well asWhat kind of color of Sunglasses is suitable for us?The simple self -test method is to put on a Sunglasses in the mirror, and you can see your pupils in faintly.If the color is too light, the filtering effect is too small; if the color is too dark, it will affect the vision and weaken the color.This year's popular light -colored Sunglasses should not be used in seaside water activities, strong reflective snow, and the sun that is very strong in the sun. Instead, they should wear sporty Sunglasses. Most of them use colorful saturation colors, which can be absorbed or can be absorbed or can be absorbed orReflection more visible light.

7As well asIn addition to reducing strong light stimulation and making the eyes comfortable, the most important purpose is to prevent ultraviolet rays from causing damage to the eyes.UVSo be sure to mark the defenseUVFunctional lens.SunglassesUVIndex96%-98%between.

8As well asGenerally, regular glasses shops have instruments to detect Sunglasses resisting ultraviolet capacity. Through this test, you can know whether the glasses in your hands are helpful for your eye health.

Polarized Sunglasses price

100Below Yuan is not good in Wenzhou goods lenses((no100%UV prevention and overwhelmingCure

100-300The quality of the yuan is not much different from the genuine product, and the workmanship is fine.

300-800Yuan's is said to be the highest craftsmanship in Shenzhen where is the high imitation of Raypeng

800YuanIt should be the genuine product from Hong Kong.

For more detailed prices of polarized Sunglasses, please refer to Polarized mirror famous name online stores.

one, myopia goggles How to clean

1. The goggles do not require special scrubbing, and you should try to avoid touching the mirror with your hands or hard objects, because this will be dirty or scratched the lens.

2. After swimming by the beach or elsewhere, if the lens is soiled or sanded on the lens, rinse with water in time.

3. When cleaning the goggles, be sure not to use organic solutions, such as alcohol, these organic solutions will cause corrosion of the lens, and the anti -fog effect of the Swimming goggles will be greatly reduced and even disappear.

4. When there is oil on the surface of the swimming mirror, when choosing a cleaner, choose neutral, clean it with your fingertips, then rinse with water, and then prevent it in a cool place.

2. How to maintain myopia swimming moster

1. After use, clean and dry it with water. Be careful not to rub the lens with a towel to avoid scratching the mirror surface.

2. The new Swimming goggles generally have anti -fog treatment, so do not apply too much anti -fog.

3. Do not use various organic solvents when removing to avoid deformation or discoloration of swimming moster.

4, After swimming, do not put the swimming mirror in the trunk of the car for a long time. After arriving at home, put the swimming mirror as soon as possible in a cool and ventilated place to dry it. After drying, put it into the glasses box to prepare for the next use.

5. In a wet state, putting together with Swimsuits, towels and other things for a long time will cause stains, so put in plastic Bags or small boxes after use.At the same time, keeping it in water for a long time or moisturizing will reduce the anti -fog effect of the Swimming goggles, and it will also cause moldy phenomena.Therefore, long -term collection should be placed in normal temperature and dry and ventilated places, and talcum powder should be added to maintain.

6. When Swimming goggles, do not place in direct sunlight or extreme high temperature (such as exposure to the sun) to avoid causing swimming mirror deformation and performance deterioration.

7. Do not use any substance to directly wipe the inside of the lens to prevent damage to the fog film.

8. The myopia goggles generally have no shelf life. It is fine when you do nt need to buy it in the long run when you buy it. If you feel necessary, you can clean it regularly.

1. What is the principle of night vision Telescope

1. principle

The microscopic night vision mirror (the same is true for the Telescope) to put the faint light, so under the circumstances that there is no light at all, the microcomio is not seen.

2. Principles of infrared night vision Telescope

This is the real military night vision mirror, There are two types of infrared night vision mirrors, one is active, the other is passive, and the active type is the night vision emitting a bunch of infrared rays. Essencequilt The dynamic type is to transform the infrared rays from the object itself into visible light. If there is no infrared source (most things that can generate calories can become infrared, such as creature, vehicles, flames, etc.), passive infrared night vision mirrors can not be seen. And active infrared night vision mirrors can be seen under any circumstances.

Second, night vision Telescope purchase

1. Active infrared night vision instrument applicable people: only at night.The main point of buying: The second generation is much better than the first generation. It is best to choose the second -generation night vision instrument.Try to choose the night vision instrument of your eyes, which is high, and it is much more comfortable to use than a single Tube.

2. Passive infrared thermal image instrument suitable for people: ultra -long night vision distance.The main purpose is to discover the goal, not to see the key points of the target details.

In summary, you must first know your needs. If you use it mainly at night, try to choose the night vision or thermal portrait.There are no two functions a volume, each with its own strengths.This can be practical.

Third, how far can night -view Telescope be seen

Many consumers do not understand this layer of concept. They believe that they can be seen one kilometer or two kilometers like ordinary Telescopes. In fact, these two products are not a concept. They are different.Observation.The principle is different, so when you look at the so -called parameters of the night vision instrument, don't believe in the indicators on the parameters. The most observation distance of the manufacturer's farthest observation generally has a large error and no reference value.Therefore, you cannot determine that the night vision is far away according to the parameters. The situation of the infrared auxiliary Lights is different. The distance of the situation of the infrared auxiliary light is different.In fact, this is very simple, but it is still difficult to explore than novices just exposed to this night vision instrument.Below I will talk about, under what circumstances can the night vision be seen?Under what circumstances is it close?

1 The night vision instrument observes a distance in the case of all black and light light

1) The distance from the micro -light observation is generally based on 1/4 The moon is based on the conditions of the weather. 50-400 Mi, if the weather is darker, or if the environment is harsh, its micro -light observation distance will be closer.At present, even the night vision instrument of more than tens of thousands of yuan can not be observed in the micro -light to reach 400 Above me.The second -generation night vision instrument can only be achieved 200 Du Mi, usually 1000-3000 The night vision around the yuan, its micr -light observation distance is 50 About meters.

2) In addition to the quality of the night vision instrument, the full black observation distance was seriously affected by the infrared lamp distance.At present, the infrared lamps equipped with the night vision instrument are average 50 About meters.Second generation The night vision can be observed under the observation of all black 100 About meters.In our actual use, there are very few all black conditions.For the second -generation night vision instrument, it is basically not all black when used outdoors.For a generation of night vision instruments, I said earlier, even darker, even if it was all dark.

2 The night vision instrument observes far and near the situation when the infrared is turned on and does not turn on the infrared.

At present, the night vision on the market, each model is different from the far exterior of the infrared and does not turn on the infrared.

1. How to prevent fog in myopia swimming mirror

The lenses of myopia swimming moster just bought are generally plated with anti -fog layer, but after a period of time, the anti -fog layer is washed away, and the lens appears at mist when swimming, which affects the vision during swimming.Woolen cloth?

1. The most direct way is to buy anti -fog agents, spray or apply it on the lens, and then rinse it with water, but the price of the fog agent is very expensive.

2. You can choose to use baby shampoo instead, the effect is very good, and the price is cheap.How to use: Before swimming, squeeze the baby's shampoo in the palm of your hand, dip it with the index finger of the other hand, and apply it to the lens. Rinse the swimming mirror with water in the swimming pool during the swimming pool.There is no mist on the lens during swimming, nor does it irritate the eyes.

3. Rinse clean water. After drying, drip a few drops of tableware or shower gels, shampoo, do not mix water, let the endoscope be covered (do not rub it with your hand), put it in a lot of decoction, and put it in a few times.Just overnight, then rinse with water to no bubbles.After processing this way, it can generally be controlled for 2-6 hours.

4. Lick the endoscopy with your tongue. It is said that professional athletes do so.The advantage is that it is very convenient to use without cost, and it is not necessary to say the disadvantages.

5. Apply the endoscopic surface with medical Vaselin; or fresh egg white to apply the endoscopic surface, dry it after drying.The disadvantage is that it is easy to accumulate dirt after 1 or 2 months.

2. How to extend myopia swimming mirror anti -fog performance

1. The ultraviolet rays of the sun will destroy the anti -fog performance of the Swimming goggles. Try to avoid placing the swimming moster in the sun.

2. The anti -fog performance of general swimming moster will fail at 80 degrees Celsius.Therefore, you should avoid letting the Swimming goggles contact the thermal source, and avoid placing the Swimming goggles in the storage box irradiated by the sun.

3. The anti -fog performance of the standard swimming moster can be maintained for more than 100 hours. If the mirror surface is found when it is just used, most of the reasons are that the user swims in the unclean or oil -quality water, so that the lens anti -fog surface is attached to a one.Oil stains block the anti -fog effect. At this time, as long as the oil on the lens is washed with a neutral detergent, the anti -fog performance of the swimmog can be restored.

4. Instructions for the use of anti -fog function: Anti -fog agents and anti -fog membranes are all hydrophilic substances. Therefore, when consumers use myopia goggles for the first time, they should be washed with water.Fog performance is fully played.

1. What is myopia swimming mirror

myopia swimming moster is a type of swimming mirror, but unlike ordinary swimming moster.The myopia swimming moster is a flat lens with a brush -up lens with refractive lens, so that myopia patients are clear when swimming, and can improve the body sensation and swimming quality.If the myopia is wearing a flat mirror, it will be blurred after entering the water, which will affect the speed and efficiency of swimming, so their own safety will also be affected.

The myopia goggles on the market basically use plastic steel reinforcement treatment and polycarbonate, silicone and other types, and increase the function of waterproof mist and ultraviolet -resistant rays.

Is it necessary for myopia swimming moster?

If there is a condition of myopia itself, you need to wear a Swimming goggles to swim and fitness, so that you can wear myopia to be relatively safe and make the swimming time longer.Otherwise, without the myopia goggles, there will be blurred vision, which will also affect the effect of swimming, which is not conducive to the role of fitness.You can choose the appropriate myopia swimming goggles according to your myopia.

3. Does the myopia swimming mirror hurt your eyes?

If myopia swimming, if wearing a swimming mirror, it will not hurt the eyes.Most of the water in the swimming pool contains the ingredients of bleaching liquid. If you do not wear a swimming mirror, no matter whether it is myopia or not, swimming will cause damage to the eyes.

If it is a severe myopia, it is recommended to choose a Swimming goggles close to the number of myopia to prevent it from seeing the swimming and collide with others.At the same time, do not be too large in exercise, and exercise should not be too severe. Avoid the retina's perforated mesh and cause damage to the eyes.After swimming, it is recommended to use some antibiotic eye drops to prevent inflammation of the cornea.