Advantages Of Acetate Frames
- Firmness and good gloss. The style is beautiful. It is not easy to be deformed and discolored, and it is durable.
- It is not easy to be corroded by the sweat of the skin and other irritants, and it will not be discolored by ultraviolet radiation.
- Diverse styles, various colors, suitable for many types of people, and easy to match clothes.
Does the phone screen have irregular color bars when wearing polarized lenses?
It is mainly the special properties of the polarizing film. The polarizer is able to see the internal stresses in the plastic, so when we usually look at the edge of the mobile phone screen, it will have a colored stripe or a black piece, which is mainly caused by the uneven edge pressure when the screen is installed. It's mostly a matter of light and shade. Wearing a polarized lens to see the LCD screen a tilt will find that the screen darkens, mainly because the polarizing lens can absorb light in a certain direction. The LCD screen is a one-way light (different from sunlight), so it is absorbed, so it is found to be dark.
Large frame glasses
This year, glasses with large frames are popular, or glasses with wide edges are good-looking. The design inspiration of many series comes from the classic design. The rectangular frame shines brilliantly, but the angular line is softer. Many frames are made of synthetic fiber materials with excellent sculpture effect and wide application range, which has become mainstream.
Advantages of progressive multifocal lenses
The progressive multi-focal lens has a number of different focal points from top to bottom. There's a smooth transition between seeing far and seeing close. There is no clear dividing line in the middle, like the myopia glasses, quite beautiful, and it is not dangerous. Because the added value is continuously and slowly increased in the gradient area, the wearer can get a continuous clear vision from the far point to the near point through the progressive lenses with the appropriate head position. In line with physiological optics, They help a better adaptation. Since the lens degree changes little by little, there is no phenomenon like jumping. Because the degree of the lens is gradual, so the vision from far to near changes slowly increase, which will not produce the adjustment of the eye fluctuation. It is not easy to cause visual fatigue. Without a degree line, the appearance will be more beautiful. Clear vision can be obtained at all distances within the visual scope. A pair of glasses satisfies both close and middle distances.
How to see if the lenses are too high?
- Look at an object in a distance 65 feet away or more.
- If you can’t see it clear, keep your eyes on the object and lower your chin. Check whether you can see clearly while looking through a more upper part in the lens than your lenses are too high.
Then you need to watch the difference in the blurriness on the contours of the roadsign.
Now, we will show you how to check if your lenses are too low. Hold something you want to read in your hands and lower your look with your eyes. Do not move your chin down as you look down. If you can’t read without lifting the glasses, the lenses are too low.
Different Types of Eyeglass Frame Materials
Titanium: as for metal frame material, Titanium is one of the most popular ones. The titanium frame material can be bent and twisted and then come back to its original form. The quality of these frames is durable and reliable for rough use. The Titanium frame material is light.
Flexon: Flexon is a titanium alloy that is composed of around 50% titanium and 50% nickel. Flexon eyeglass frames are extremely flexible and can be twisted or bent to an extreme and can return to their original shape. The flexon frame material is popular among kids' glasses.
Beta titanium: this is an alloy mainly composed of titanium and a small amount of aluminum and vanadium. The beta-titanium has a memory feature and is mostly used in high-quality designer frames. The beta-titanium is toughness and light.
Monel: it is an alloy of nickel and copper. The monel frame material is cheap and discolor.
Beryllium: it is an alternative to titanium resisting corrosion and tarnishing, but it is cheap. The beryllium frame material is lightweight, strong, flexible and available in a wide range of colors. In addition, it is a good choice for those people with high skin acidity or those people who spend a large amount of time in or around salt water.
Besides the above plastic eyeglass frame materials and metal frame materials, there are some other frame materials available, such as aluminum, gold, silver or other biodegradables materials. You can choose the suitable one according to its performance, features, and price.
What’s more, you can choose glasses from Koalaeye Optical. It provides various kinds of glasses and frames, such as blue light blocking glasses, rimless sunglasses, and so on.
How to Test Computer Glasses (Clear Glasses)
First, we will show you how to test computer glasses with clear glasses.
1. Ask for Blue Light Glasses Brand Spectrum Report
To find out whether your blue light glasses are the best computer glasses, you should contact the company you bought them from and ask for a spectrum report. It will show you how much blue light your computer glasses can block.
After sending the spectrum report to you, you should make sure that your computer glasses are able to filter at least 30% blue light, otherwise, they are unsafe.
2. Use the Lens Reflection Test
As for how to test computer glasses, you can use the lens reflection test. You can see what color the light is that reflecting off the lenses.
If it reflects the blue light, they are filtering some blue light. If the reflection is violent or purple, the computer glasses may be not effective.
This is a good way for you to perform a blue light test at home.
