Do Blue Blocking Glasses Work At Night? | KOALAEYE OPTICAL

Do Blue Blocking Glasses Work At Night?

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How do rimless titanium glasses look?

Rimless titanium glasses are the lightest frame. Rimless frames feature a half-frame at the top of the lens and a bridging bridge at the bottom of the lens. Rimless titanium glasses weigh as little as a feather because there's less framing material on your face. Rimless glasses are usually more comfortable, less visible, and usually better to wear than heavy frames. Crystal clear lenses have no bulky frames and minimize the need to hide your face and your eyes, while other frame styles are designed to be seen and therefore mask parts of your face. Rimless glasses are the lightest and easiest to wear of all the styles.

This stylish style has been popular for years and is inspired by the days of the past to provide a stylish versatile look. Rimless glasses are simple and elegant, suitable for both men and women, and can be worn anytime and anywhere. It's light and easy to wear, with a keyhole nose bridge and an adjustable silicone nose pad to keep the glasses from slipping off. You can make it as elaborate as you want.


Sunglasses For Fishing - Ray-Ban

Ray-Ban was founded in 1930 in the United States. It is the inventor of the world's first sunglasses and is known across the world for it. It is treated as a symbol of American culture. ?Since its inception, Ray-Ban has been focusing on the development of sun-blocking products and integrating a lot of high-tech into them, committed to providing the best vision protection for modern consumers.



Tungsten carbon glasses frame

Tungsten carbon material, one of the obvious advantages of this material is that it has good toughness and is ultra-lightweight. People will feel no pressure when wearing such glasses. It is good if you are a sportsperson who chooses it.


What is a progressive lens?

Progressive multifocal lenses are lenses with different upper and lower powers for seeing far above and below for seeing near. The distance from the fixed far power above the lens to the near power fixed below the lens does not change suddenly, but a gradual transition between the two through the gradual change in refractive power. Compared with ordinary lenses, there are many advantages. The appearance of the lens is like a single vision lens, and the dividing line of the power change is not visible. Not only is the appearance beautiful, but more importantly, it protects the age privacy of the wearer, and there is no need to worry about revealing the age secret due to wearing glasses.

Since the change of the lens power is gradual, there will be no image jump. It is comfortable to wear and easy to adapt. So it is easy to be accepted. Because the degree is gradual, the replacement of the adjustment effect is gradually increased according to the shortening of the short distance. There is no adjustment fluctuation, and it is not easy to cause visual fatigue. Clear vision can be obtained at all distances in the visual range.

Such a pair of glasses meets the use of long-distance, near-use and various distances in the middle at the same time. It is especially good news for teachers, doctors, music workers, and computer operators, because these people not only need to see far and near objects clearly, but most of the time they also need to be able to see middle distance objects such as blackboards, piano scores, and computer screens. . This is not possible with any lens other than progressive lenses.



Adjustment of the angle of the nose pad

For the angle of the nose pad, you can apply torque in the horizontal or vertical direction according to the deformation needs. It can be held in the proper part of the nose pad with needle-nose pliers, and the torque can be applied at a certain angle in the vertical plane or horizontal plane to achieve the purpose in accordance with the deformation needs. In the time of repeated actions, in order to prevent the welding place of the nose pad and the glasses ring from breaking due to repeated stress deformation, you can use your fingers to apply external force at the welding place to change the deformation position and play the purpose of protection.


How to buy anti-blue light products?

In order to further standardize anti-blue light products and make all kinds of products effectively protect eye health, relevant standards have been formulated. Based on the different effects of blue light in different bands on the human body, the transmittance of blue light in each band is required in the standards.

For example, in the band range of 415-445 nm, the transmission ratio of light is less than or equal to 80%, and more than 445 nm, it is greater than 80%.


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Does the titanium frame cost a lot?

It can be decided according to the titanium frame technology, design, and specific material. Titanium-nickel shape memory alloy, titanium alloy, β titanium alloy frame belong to the high-end consumer goods, and the price is generally more than 300. In recent years, with the improvement of people's living standards in China, the domestic demand for titanium frames is expanding rapidly, and there are many manufacturers of titanium frames in China, but all the raw materials are still imported from Japan. Up to now, there are very few manufacturers that develop and produce titanium glasses frames by themselves in China. The production of β titanium alloy wire used in the frame is in the stage of development in China.

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