is there a big difference between 1.67 and 1.74 high index lenses? | KOALAEYE OPTICAL

is there a big difference between 1.67 and 1.74 high index lenses?

can you use insurance with eyebuydirect? Du liest is there a big difference between 1.67 and 1.74 high index lenses? 5 Minuten Weiter what glasses suit my face shape?

Drivers can wear night-vision goggles

Night-vision goggles can prevent headlights from blinding, add color saturation, and make the field of vision clearer. The normal night vision glasses are golden yellow in color and have a metal coating on the surface. This is the use of diamond high perspective reflection film technology, in the lens to add color and film layer, in order to maximize the brightness of the object being seen. It is to compensate for the light for driving, which makes light pass through your eye. It can increase the three-dimensional sense of objects, making the line of sight more clear, to avoid confusion caused by blinding headlights.


Titanium frame machining is complicated.

The elastic modulus of titanium alloy is small, which is easy to produce large deformation, springback, distortion, and vibration in cutting, resulting in poor geometric shape and accuracy of the workpiece. As the surface roughness increases, the tool wear increases. The thermal conductivity of titanium alloy is poor and its thermal conductivity is small, 1/6 of that of 45 steel, so the high heat generated in processing cannot be effectively diffused. It is even harder to use titanium to make glasses. The frames are very thin and a lot of fine work is demanded. It's definitely a challenge for titanium, which is pretty difficult to work with. In addition, titanium alloy frames involve titanium alloy welding technology, which is more difficult.



Banton Frameworks

The frames use the best acetate from the best suppliers in Europe. The factory that produces acetate is located in northern Italy. Although there are many other acetate manufacturers, they are arguably the best at what they do. In that industry, their acetate has been used in optical manufacturing since 1849.


When does the optical store have a special offer?

A good beginning is half the success. The new store opening needs to quickly expand awareness, and it is a marketing. old for new activities, means that as long as the unused glasses can be worth 30 yuan. Or the chain of glasses, to celebrate the New Year gift promotion plan, really play the role of promotion and atmosphere, promote sales.



Metal frames are very popular.

Metal-rimmed glasses are one of the hallmarks of British preppy style.?But more than that, it's popular in the fashion world. Metal-framed glasses, especially round ones, will give you a retro look, and the basic ones will have a strong style.?A lot of people can choose the popular style in the past, With new collocation, they have a new flavor. Metallic frames with suit style will be more in line with the taste of the British gentleman.?These days glasses like to use titanium for their frames.?Titanium, for example, is an ultra-light metal element with the symbol Ti. Titanium is mainly used in the glasses industry for its lightweight, elasticity, and good corrosion resistance.


Find the right size

The right glasses should sit comfortably on the bridge of the nose, not pressed against the forehead or cheeks. But they don't stay at the tip of the nose for so long that they slip while squinting or wrinkling your nose. The fit of the nose determines the distance between the glasses and the face. A proper fit should allow the lens to be between 14 and 24 millimeters away from the eyes. When you want to find glasses that fit, don't clip, don't slip, and don't lead to discomfort, you have to find out the size you need.


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What Do Pinhole Glasses Do?

Pinhole glasses are often used by eye doctors who use them as a diagnostic tool to quickly check for vision impairments. Of course, pinhole glasses are sometimes used to treat nearsightedness or astigmatism. Pinhole glasses are also used in conjunction with an occluder, an instrument used to cover one of your eyes while you read an eye chart. The occluder is solid, while the pinhole glasses have a number of tiny pinholes. So, the doctor often uses it to check the potential of your vision.

Pinhole glasses are often used to check corneal distortion and cataracts. A cataract evaluation includes focusing light in the eye to check if vision capability behind the cataract makes it worth performing surgery.

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