Computer glasses lens uv protection is how to return a responsibility?

What is the uv protection computer glasses?

The sun give off light has: visible light, infrared, ultraviolet and other three. With ultraviolet radiation to human body skin and eyes. In the. Cause serious damage, such as, Released by the sun light is divided into UVA, UVB and UVC, if long time exposure can cause damage to the body, UVB has a serious effect on vision, yellow glasses for computer is burned black light, most of the canthus can absorb the UVB light so be sure to block out the light.

Prescription Computer Glasses For Computer Screen Glasses Men/Women Anti-Blue Radiation Anti-Fatigue Round Pc Glasses
Prescription Computer Glasses For Computer Screen Glasses Men/Women Anti-Blue Radiation Anti-Fatigue Round Pc Glasses

Uv protection computer glasses because has the function of the polarization of light, so will all the harmful rays of blocking off does not affect the visible light through, can truly achieve the purpose of protecting our eyes. if you want to buy computer glasses Philippines, you can choose us.

What kind of glasses to uv?

Avoid light radiation damage to the eyes, the most effective and the most commonly used method is to wear safety glasses. The so-called protective glasses is a kind of filter, can change through the light intensity and spectrum.

The computer glasses is divided into two major categories, one for absorption, one for reflection type, the former is used most frequently.

The computer screen reading glasses lens in the manufacturing, in the general formula of optical glass and add the part of metal oxides, such as iron, drill, strontium, nickel, chromium, manganese and some rare earth metal oxides such as neodymium and etc.

Cute Half Frame Computer Glasses Protective Glasses For Computer Users Anti-Blue
Cute Half Frame Computer Glasses Protective Glasses For Computer Users Anti-Blue

The metal oxide can make glass to light some wavelengths of electromagnetic waves in the selective absorption, such as cerium and iron oxide can absorb a large number of ultraviolet light. Use this computer eyewear lenses can reduce the amount of certain wavelength through the computer eyeglasses lens, reduce or prevent damage eyes.

One, the absorption filter

Also known as sunglasses. About 20% of visible light transmittance, better absorption of prescription glasses for computer work ultraviolet and infrared light. There is light green, light gray, a variety of colors, such as weak tea used to create shading and snow job safety glasses or computer reading glasses.

The light grey lens to identify the minimal impact of color; Shallow tea glasses looks darker blue sky, green light by decreasing; Light green lens cut through the red light is.

Second, the reflection type filter

Absorption filter, eye protection glasses from computer is to use the lens to absorb certain wavelengths of light, in order to reduce the light into the eye, but because the lens absorbs some light, heat rejection, especially longer light, infrared and other wave due to the accumulation of heat, computer eyeglasses make the eyes feel uncomfortable.

Actual working life, in many cases is the absorption and reflection type combined use, namely to a high reflection film plated on the colored lenses, the filter effect is stronger, chlorine, such as welding, arc welding, plasma cutting, such as operating personnel to wear computer glasses, this kind of method can be adopted to solve.

Small make up remind:

In the store had found that the lens price difference is quite big, according to salesperson introduction, the lens in the membrane can prevent computer radiation, uv protection, this statement computer screen glasses is not correct!

Coating effect has been exaggerated, coating has the effect of uv and prevent computer radiation, belong to out of thin air. Because general lens has anti-radiation effect, and uv protection is required in the lenses with special material, which has nothing to do with the coating.

Good quality computer screen reading glasses lens coating, the price is almost the same as the lens. If there is a store had said to add layer coating is only more than 10 dollars, that is about to consider the authenticity and quality problem. But the film after, look from flank the lens appears purple or blue, show that coating only block which color of light, there is no difference in quality.

How to judge whether a uv protection sunglasses?

Methods 1. See sunglasses tags

Sunglasses ultraviolet prevention function, the express way generally have the following kinds:

A) labeled “UV400” : this means that the lens of uv cutoff wavelength of 400 nm, namely its (lambda) under 400 nm wavelength in the maximum of the spectral transmittance of tau Max (lambda) is not greater than 2%;

B) marked with “UV” and “anti ultraviolet” : this says the lens of UV cutoff wavelength of 380 nm, namely its (lambda) under 380 nm wavelength in the maximum of the spectral transmittance of tau Max (lambda) is not greater than 2%;

C) labeled “100% UV absorption” : this means that the function of the prescription glasses for computer work lens is 100% for UV absorption, namely in the UV range of average transmission ratio is not greater than 0.5%.

To achieve the above requirements of sunglasses, is in the true sense of uv protection function of computer sunglasses.

Methods 2. Use money + yanchao pen to verify

In the absence of the instrument, ordinary people also can detect whether the sunglasses have uv protection function.

Take a piece of money, put the computer glasses lenses on the anti-counterfeiting watermark, illuminates with UV ray pen or counterfeit detector in the lens. If you still can see the watermark is this pair of sunglasses is not uv protection, if not see, is this pair of sunglasses for uv protection.

computer glasses prescription calculation, best computer glasses brands to choose.

As we know, many computer glasses brands to buy in the internet, but it is not easy to find best and professional computer glasses, here some useful tips to choose computer glasses prescription calculation for your face, I think you will like.

Titanium Glasses Frame Reduce Eye Fatigue Glasses For Using Computer Eyewear Ultra-Light Radiation Anti-Uv Tr90
Titanium Glasses Frame Reduce Eye Fatigue Glasses For Using Computer Eyewear Ultra-Light Radiation Anti-Uv Tr90

Computer screen privacy glasses is one of the glasses, because is not supported by frame in the glasses for computer lens, but no picture frame directly by the mirror on both sides of the leg to support the lenses, so called his rimless glasses for extended computer use. Not all his rimless computer glasses myopia are suitable to wear, it has certain matching conditions. So, what suits his rimless computer spectacles face shape? if you want to shop computer glasses in canada , you can choose us, we offer free shipping to all over the world.

computer glasses prescription calculation, can be roughly divided into full frame glasses, glasses, three kinds of his rimless glasses. Categories of different glasses, however, its effect is not the same worn out, suitable crowd also is distinguishing.

His rimless glasses, for example, in simple terms it is only a computer screen privacy glasses lens glasses, glasses legs. Because there is no borders, glasses will be slightly comfortable computer goggles, casual, wear up, is also very beautiful, so many people in matching glasses, will choose his rimless computer glasses brands.

Eye Protection Glasses For Computer Screen Glasses Reduce Eye Fatigue Glasses Radiation Anti-Uv
Eye Protection Glasses For Computer Screen Glasses Reduce Eye Fatigue Glasses Radiation Anti-Uv

Without his rimless glasses for extended computer use frame package, but the perfect present a glass lens, is highly ornamental effect. In life we will see a lot of people who wear eyeglasses, compared it with glasses, for there is no limit to the face, is suitable for most of the face. Whether you are a square face, long face or round face, wearing eyeglasses is fashionable and beautiful, very popular among young contemporary business men and women.We off over 100 new style of computer glasses in canada , you can find perfect one.

Though no special restrictions to face his rimless glasses, which is suitable for the vast majority of his rimless glasses face, no matter how you face, who wear eyeglasses, don’t give a person very the feeling of “soil”, on the contrary will have the feeling of fashion and beautiful reading glasses for computer use.

In addition, also very easy to match his rimless computer glasses prescription calculation. But we can’t ignore the drawback, that is stable, did not have his rimless glasses box because of structural limitations, in his rimless computer screen privacy glasses to wear after a certain period of time, there may be loose, which requires repair store had from time to time.

His rimless glasses, although for most face users wear, but is not suitable for high myopia. Because the higher the degree, the lens will be more, so, after wearing computer eyeglasses, will have a not beautiful, not harmonious feeling.

In addition, be fond of the movement of myopia, also do not recommend to match his rimless glasses for extended computer use. Because due to the intense movement, easy to cause the lens rupture, thus bring threats to eye health.

Where can i buy eye strain computer glasses? Glasses that protect eyes from computer

As we know, best glasses that protect eyes from computer, and now more and more people will choose a pair of professional glasses to help with computer eye strain, here will will give you some ideas: where can you buy eye strain computer glasses.

Now the lifestyle has led to people can not avoid the radiation from electronic products, so simple anti-solar radiation glasses that protect eyes from computer, has been unable to meet people’s needs. Many of the radiation is often caused by congestive eyes, swelling, tingling, dryness and other symptoms, which gives people life and work is still relatively large troubled, long-term will cause irreparable damage to the eyes. So choose a pair of highly effective and comfortable radiation protection eye strain computer glasses, is the answer to this situation is better, then how to choose radiation anti glare glasses that protect eyes from computer?

Anti Reflective Glasses For Computer Goggle Eye Fatigue Computer Glasses Anti-Blue
1, the distinction between radiation and ordinary anti glare glasses computer method is very simple, as long as not too dark light, very easy to see the coating on the lens color, lens color and we use the myopia, etc. are very obvious Differentiated,so you need to wear best computer glasses for yourself.
2, the current popular varieties of radiation protection anti glare glasses computer have a lot of different colors of the coating function is also different. Yellow film: waterproof, anti-static, anti-fouling, anti-ultraviolet, increase the transmittance; purple film: metal ion film, both light transmission and shielding high-frequency radiation, the film itself has conductivity and shielding; , Can not filter light. So purple is a relatively good choice of radiation computer glasses.

Yellow Tinted Glasses For Computer Strain Glasses Reduce Eye Strain Anti-Blue
3, when wearing radiation protection eye strain computer glasses to be taken seriously, do not careless, I feel the computer does not stimulate the eyes, or not the same as the previous tingling, not very bright and dazzling feeling should be suitable for their anti glare glasses computer and eyeglasses for computer users.

And now, Do you know where to buy eye strain computer glasses? if you have any question or ideas for anti glare glasses computer for  glasses for computer use, you can contact us, we will help you to deal with it.

How to choose computer glasses? Blue light blocking computer glasses?

How to choose computer glasses?  here can give you some useful idea to choose it.

Now there is a problem: the computer glasses have effect?

1, Computer glasses lens can positive role:

For long time using a computer or electronic display device, the blue light blocking computer lens effect can now be sure just let an eye more comfortable, and no further evidence to prove that can effectively improve the eye acid bilges, dry eye, eye fatigue, decreased vision, fundus lesions, and so on.

2, how to determine the computer eyeglasses degree (parameters) :

Because it is near with glasses, prescription should fully consider that in optometry and decrease the correct vision, in order to avoid discomfort with long eyes. Specific prescription, must by the professional optometrist after rigorous optometry.

3, how to choose computer glasses lenses:

The computer glasses lenses must be qualified first optical lenses, and to a certain percentage of the blue light, the effect of general prevention blu-ray optical lens about 30% less.

The computer glasses lens is divided into two broad categories, one kind is substrate shallow orange colored lenses,such computer gaming glasses,computer reading glasses, this kind of lens of the base of color is deeper, not suitable for long time wearing. Give priority to with flat lens. Another kind is implemented through the surface coating layer, the base of color is shallow, also have a little shallow orange, should be easy to see under the white bottom line. From the point of effect, the two types of lens of the anti blue light effect difference. But the latter technology is more advanced, more superior optical performance in general.

4, how to preparation against the glasses for computer use?

Even not myopic crowd, it is better to choose reliable brand computer lens, optical lens production companies need to separate compound lens, lens quality is important to ensure wearing comfort and durability.

Myopic crowd after confirmed nearly with accurate parameters (refer to article 2) to formulate the best parameters of glasses. Glasses for the machining precision, of course, also need to choose a shop with technical capabilities and reliable.

And now, I think you know how to choose best computer glasses now.