[Polarized Sunglasses] How to choose polarizers to choose polarized Sunglasses

How to choose polarized Sunglasses

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.

Will there be discomfort in long -term wear polarized Sunglasses?

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.

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.

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.

The identification of the quality of 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 identify the authenticity of polarized Sunglasses

The polarized lens is made of synthetic resin, which is as light and precise as Contact lenses. After being made, it can be filtered to remove the road reflection under the wet surface or sunlight.Main advantages: light, can filter 99%of the dazzling reflection chaos, 99%of harmful ultraviolet light, not easy to break.In order to filter the dazzling light in the water surface, land or snow, add vertical special coatings to the lens, which is called polarized lens.It is most suitable for outdoor sports (such as driving, maritime activities, skiing or fishing).More and more people chose polarized Sunglasses when choosing Sunglasses.But how to distinguish the polarized Sunglasses you buy has the function of polarizing and UV400.

1. Find a liquid crystal display to face the level of the glasses at the screen. At this time, the lens has not changed. Then when the glasses rotate up the clockwise to 45 , the color of the lens becomes darker, and then rotates and returns to normal.Polarized lenses, if there is no change anyway, it is not polarizing.(Note that it must be a LCD display).

2. The UV400 means 100%blocking ultraviolet rays.

The following method can simply measure the anti -ultraviolet effect of the lens or whether the lens has passed the UV400 identification.The Sunglasses on the market do not necessarily have the effect of isolation of ultraviolet rays. If you want to know if the lens can isolate ultraviolet rays:

Find an ultraviolet banknote test lamp and a one hundred yuan.You can see the RMB 100 of the RMB.If you have a lens with the UV400 function, you cannot see the anti -counterfeiting.

precautions for Polarized Meic mirror

1. Try to use polarized lenses for the lens of driving the lens.Because the biggest trouble of people's eyes when driving is glare and ultraviolet radiation.Only polarized lenses can effectively eliminate glare.As we all know, ultraviolet rays are chronic killers of the eyes, which can cause problems such as cornealitis and macular lesions.

2. Some special feature polarizers will not be obvious when testing polarizers. For example, driving mirrors (polarizing mirrors) lenses at night is relatively lighter, usually light yellow lenses. When testing polarizers, the lens is 45 when it is 45 .Through the lens, you can see that the color of the lens becomes dark yellow, and it will not become black and opaque like a gray lens.

Introduction to military Telescope

The optical systems of military Telescope are different.Most of the military Telescope has a branch board, and its split boards used at night also have lighting.The pupil distance of the military Telescope is relatively large, so that the observer can wear anti -virus masks.In order to prevent hitting the head during the shooting, some aiming mirrors are as large as seven or eighty mm in pupils, and they must also have a moderate tolerant eye mask and lip.

In terms of optical performance and structural performance, military Telescope is more excellent and reliable, because its design is more prudent, with excellent materials and exquisite craftsmanship, such as good quality, less mixed gitons, magnifying multiplication and pupil size matching.Real the best resolution.

Due to the high quality requirements, military Telescope must be tested before the factory, which generally includes vibration tests, high temperature (1055 C) test, low temperature (one 45 C) test, rain or water -soaking test, and gas test.After these experiments, product performance can still be guaranteed to leave the factory within the specified range.Some products also have their own dryer in the mirror body. When the factory is removed from the factory, the air is poured into the dry air or nitrogen to effectively prevent the internal lens from growing mildew in the future.Ordinary civilian Telescope generally does not do environmental tests, or only part of the test.This is difficult to understand from the market, and it cannot be seen from the product appearance alone.

military Telescope main structure

The mirror body: The mirror body is the main body of the Telescope, divided into left and right mirrors, connecting it by connecting the axis. Its role is to support the upper and lower rectangular prisms, connecting object mirrors and eyepiece groups.

The material mirror group: the material mirror group consists of a lens, a lens lens, etc.The material mirror group and the mirror body are connected together with a thread, and the role is to receive the light imaging of the distant object (or target) on the coke.

Eye mirror group: The eyepiece group consists of a lens, a eyepiece frame, a visual handwheel, etc.The eyepiece set and the mirror body are connected with a threading ring. Its role is to amplify the image of the material mirror for people's eyes to observe and turn the vision of the handwheel can be adjusted.It requires that its range is 4 refractives.

Connection shaft: The connection axis is the connector of the left and right mirrors of the Telescope, and it is also the hub that realizes the adjustment of the meson within 58-74mm.

Cover and strap: The lens shelter and the glasses lid are designed to protect the material mirror and eyepiece.When the Telescope is not in use, the cover should be covered to protect the lens without damage.The strap is connected to the left and right mirror of the Telescope. When used, the strap can be hung on the user's neck to prevent the Telescope from being disappointed.

How far can military Telescope be seen

Under normal circumstances, about 3000 meters can be seen. In fact, such a long distance is not very clear. It is best to hold about 1000 meters, so many details can be seen barely.

military Telescope multiple

Without the principle of "standards", regular military Telescope multiple is generally 7 times 8 times and 10 times.

The multiples of military Telescopes should not be too high. The reconnaissance requires a large field of vision, and the high -power Telescope does not meet this requirement. The multiple is super high, the field of view is super small, and it is not easy to find and discover the goals.

military Telescope has almost no more than 10 times.Do not use multiple standards.

In fact, there are also many times. For example, the whistle mirror is ten times twice, but it will be on the shelves, otherwise it will not be guaranteed to be clearly viewed.

How to use military Telescope

Using a Telescope, you must first set your vision.Handheld Telescope to observe the far targets of thousands of meters away.Set the left and right eyes, and turn the eye mirror vision to the snail until it is clear. Remember the number of points of vision.Then set the distance.Both eyes are observed through the Telescope and pulled the Telescope lens barrier, so that the two fields of fields are merged into a circular shape. At this time, the number of sections of the meson is the observer's mesh distance.After using the Telescope for the first time, you should remember your vision and mesh, and then you can directly install it when you use it.When observing the Telescope, hold hands, and the elbow clips are close to the chest. This posture is relatively solid. If there is work or other support, the elbow should be supported as much as possible, especially using a large -rate Telescope.Use a Telescope in the weather or strong sunlight to wear a filter to make the observation clearer.

The dense position in the military Telescope can use the formula of "upper interval, down 1000, dense positions, distances on both sides. If you want to obtain that number, diagonal to remove the neighbor"Follow the target distance.This is specifically described in "military topography", which is a required course for each officer or scout.

1. Meter distance adjustment

First, adjust the positive refractive scale of the Telescope left and right eye mirror to 0 scale.Hold the left and right mirrors of the Telescope with both hands, search for the distant targets at the same time or press the left, right mirror body at the same time, so that the eyesight of the Telescope is the same as the pupil of the human eye (the full view of the human eye is round.), Stop adjusting.

2. Material image adjustment

First search the target. After locking the target, rotate the left -eyed mirror vision hand wheel, so that the target image of the Telescope left branch system is completely clear, and then turn the right mirror vision hand wheel to make the right branch system target completely clear.After completing the adjustment of the observed goals.Because the Telescope light road design has a dynamic automatic focusing function, when the definition of the Telescope is adjusted, you do not need to be re -adjusted when you observe the different goals.

3. Use at night

When the environmental light is dim or at night, it is recommended to use a Telescope with a pupil diameter of more than 7mm.Because human eyes are about 2-3mm in the daytime, the pupil diameter is about 6-7mm in the dark, so the Telescope can collect more light than the naked eye.

The difference between civilian and military Telescope

First of all, their optical systems are different.Most of the military Telescope has a branch board, and its split boards used at night also have lighting.The pupil distance of the military Telescope is relatively large, so that the observer can wear anti -virus masks.In order to prevent hitting the head during the shooting, some aiming mirrors are as large as seven or eighty mm in pupils, and they must also have a moderate tolerant eye mask and lip.

In terms of optical performance and structural performance, military Telescope is more excellent and reliable, because its design is more prudent, with excellent materials and exquisite craftsmanship, such as good quality, less mixed gitons, magnifying multiplication and pupil size matching.Real the best resolution.The shell of the military Telescope use metal instead of plastic to ensure that it does not crack or deform after long -term use.In contrast, ordinary civilian Telescopes are worse in sealing and materials. Some are not only plastic shells, but even internal lenses are made of plastic.

Due to the high quality requirements, military Telescope must be tested before the factory, which generally includes vibration tests, high temperature (1055 C) test, low temperature (one 45 C) test, rain or water -soaking test, and gas test.After these experiments, product performance can still be guaranteed to leave the factory within the specified range.Some products also have their own dryer in the mirror body. When the factory is removed from the factory, the air is poured into the dry air or nitrogen to effectively prevent the internal lens from growing mildew in the future.Ordinary civilian Telescope generally does not do environmental tests, or only part of the test.This is difficult to understand from the market, and it cannot be seen from the product appearance alone.

Telescope maintenance

1. Ensure that the Telescope is placed in a ventilated, dry, and clean place to prevent mildew. If possible, put the desiccant around the Telescope and often replace it.

2. The dirt or stains left on the lens should be gently wiped with a professional cloth to avoid scraping the mirror surface. If you need to clean the mirror surface, you should take a little alcohol with dehydrated cotton.Wipe the edge of the edge, and keep changing the dehydrated cotton ball until the rubbing test is clean.

3. The Telescope is a precision instrument. Do not fall, pressure or do other violent movements on the Telescope.

4. Non -professional personnel should not try to disassemble the Telescope and clean the interior of the Telescope.

1. Where to buy camping equipment

If you want to go out for Camping or Camping, it is important to buy a complete set of camping equipment. Generally, if you want to buy camping equipment, you can consider buying in a large shopping mall supermarket, but it may not be complete.The supporting facilities are all.

However, after all, Camping is still a relatively niche project. Many cities may have no or rarely field camping equipment specialty stores. Then it is recommended that everyone buy it through online channels and search for "camping equipment" directly on major e -commerce platforms.

2. Buy camping equipment online or go to the wild camping equipment store to buy

When buying camping equipment, you can buy it online or buy it through a camping equipment store. So which channel is better?

Generally speaking, if you buy camping equipment, buying online and physical stores has its own benefits. Online buying is relatively cheaper, and there are so many camping equipment. Selective selection is definitely wider than physical stores.If you know more about the purchase of camping equipment, or have a special purchase guide for reference, you can consider online shopping.

Buying camping equipment at the wild camping equipment specialty store is mainly convenient. You can buy camping equipment required for one stop, and you can see camping equipment on the spot. You can try on the spot. Relatively speaking, it is more suitable for novice friends.

3. Can I buy camping equipment for Camping?

In ancient times, human beings survived in the wild. Many people now try to Camping and Picnic in the wild. There is a different feeling, but it should be noted that Camping is to buy camping equipment.

Generally, many Camping places now have camping equipment to rent. For friends who occasionally come out of the camp, if you feel that camping equipment is too expensive, you can also consider the Camping site to rent or buy a simple set of camping equipment.As for decorations such as coffee pots and folding chairs, related equipment will be equipped in the camp.

However, it should be noted that the above is the situation of Camping Camping. If it is a Camping (that is, Camping in the wild), it must be carried by the necessary camping equipment; for novice Camping, it is not recommended to directly Camping.

1. What face shape is suitable

1. Melon face face

Melon seed face is a standard face shape, so it can be controlled by any style and tricks. If you want to wear it, you can wear it. There is no great restriction.

2. Round face

Do not choose too large flowers or too wide styles. The width of the hair band is the best in 1-2 cm.In addition, you should wear your hair band to the position above the head, tie a bow to eliminate your round face, and at the same time, you can also transfer the attention of the small round face.

3. Long face

The girl with a long face is suitable for 1/3 of the top of the head. Do not choose to decorate the center of the head, and it is a high -end flower model!

4, Square face

The girl with a Square face should not use a hairband. It should use a soft hair band to modify your small face with the hair to avoid highlighting the face shape.

two,How to wear a band will not fall

1. Choose a suitable hairband

If the hair is too tight, it is uncomfortable. If the hair is too loose, it will be easy to fall down. It is better to choose a loose hair band to wear.However, when the hairband is worn for a long time, it is easy to loosen and it is easy to fall.

2. Use a hair clip to fix the hairband

Choose two hairpins with the same color as the hair band. Do not follow your hair when you use your hair clip.Hair.If you feel that the hair clip is not very beautiful, you can use the hair clip on the hair behind the ears or to cover the hair clip with hair, which will not affect the beauty.

How to get the name of the Dog

1. Named according to the appearance of the Dog

Based on the appearance of Dogs, it should be the most common Dog naming method.For example, the hairy black one is called "sunspot", the hair color is called "yellow and yellow", and the mixed Dog is called "flower" and so on.

2. Named according to the character of the Dog

Some Dogs are particularly lively, some Dogs are very tame, and some Dogs are more silent, ... they are given "Taotao", "obedient", "silent" and so on.

3. Poch, fun naming method

Some Dog names, at first glance, they knew that they were spoofed by the owner.For example, what "food", "big silly", and the names of various celebrities, stars, etc., sometimes the star fire is named the name of which star fire is named.

4. Use a cartoon image to name

In this way, it is commonly named for children.Those who like to like the sheep will give their Dogs name "Hi Goat", who like Doraemon "Doraemon" Doraemon ", and those who like McDull call the Dog called" McDull "and so on.

5. Name method related to family names

Some people like to use their surnames to give the Dogs with their surnames and call them with their family names. For example, there is already a child in the family of Wang, which is called the Dog "Wang Xiaoer" and the like.The family is directly attributed to the family, just like my own family.

6. Name the Dog with a foreigner name

Many foreigners such as Pete, Dick, Mike, Nick, Alice, etc. are often used as Dogs.

7. Traditional Dog naming method

The names of Dogs such as Wangcai, wealth, Dabao, etc. are the names of Dogs that people have always used. Although sometimes they are rustic, who does not like the auspicious meaning in this name?

Foreign pet Dog named Daquan

[Cute Dog Name Daquan]

Jiajia Jiajia Xiaoxiao Tiantian Baixue Xiaobing Angel Anqi Kiki Little Love Baby Fairy Fairy Xianni

Annie Feifei Sweet Ball Milly Guogan Sugar Sugar Point Baby Best Mimo Little Snow

Happy Nana Xiangxiang Tianya Point snowflake dolphin cocoa Joseno Mimi Nana

Jenny Niuniu Lara Mifelulu doses Su Su silk Road coquettish, Xinxin thinks about Anna

[Genuine Dog Name Daquan]

Seven Swords, the sea, the earth, the earth, the god, the wind, the wind, the wind, the blank wind, the wolf king son of the son, the god Ling Yun

A gentleman lion king, the king of the king of the king of the king of the king of the king of the king

[Naughty Dog Name Daquan]

Lolo Doudou Mao Mao Fat Fat Abao Youyou Little Q Agui QQ Coca -Cola Qiqi Ball

Wangcai Popular Bobo lunatic jumping bugs Babe Momo Dingdang Lara Flying Flying Bangs Little Wolf

Longlong Di Di Coco Mododo Duo Nuo Nuo Nuo Xiaobai Daisheng Lauding Road Lufei Yangyang

Mickey Dica Old Mai noisy Karl Bear

[Gentleman Dog Name Daquan]

Locke Czech Caesar Doggharhharhie Findi Wil Rito Tony Harri Tobett

[Fragrant Dog Name Daquan]

Milk Coffee Coffee Milk Tea Ice Step summer Drop Snowball Milk Ding Ding Ding Ding Apple Rose

Lily strawberry green tea orange juice jelly jelly pudding clove