How to choose blue light blocking glasses?
While trying it on, look at the electronic screen from a distance to see if it stimulates your eyes. Holding the glasses in front of a display screen or under an LED light to see if they reflect blue light on the surface of the lens. It shows that blue-blocking glasses can block blue light. The special blue light flashlight shines on the white cardboard through the lens, the blue light that passes through the blue-blocking lens is noticeably dimmed, while the blue light that passes through the normal lens is not changed at all, which is what the blocking blue light does. You can go to a professional eyeglass shop to detect instruments through the spectrum of professional authority, and the best blue light blocking rate is between 60%-70%.
With the user as the core, the personalized service of glasses is provided.
Users can actively participate in the innovation of the product. They pay attention to user needs. Consumption is the basis of production, and brand is formed on the basis of perfect experience and user sharing. Modern enterprises focus on the market on users, and users' experiences are the starting point for product development. No matter what kind of mobile terminal, it is highly customized. In smartphones, in particular, each phone number represents a specific person. Mobile applications can provide more accurate personalized services for different persons.
About Plastic Frames
It is usually divided into thermoplastic plastics and thermosetting plastics. Thermoplastics can be reworked under heat. Thermosetting plastics cannot. The plastic frame is usually made of nylon or composite material. Although it is a thermoplastic material, at regular temperature will not become soft. The plastics used to make frames are not always thermoplastic, but they can almost always be softened by heating. Thermosetting plastics are usually used only for small parts.
QINA glasses
The clear frame glasses are classic, understated, simple, and stylish, defined by clean lines and minimal details. Whether you have an important meeting to attend or are relaxing in front of your favorite show, clear frames can easily blend into your wardrobe.
Founded in 2013, it is a fashion brand for young people and launched by the merger of two major eyewear companies Essilor and Luxottica. Dedicated to the study of pop culture and different product attributes, they bring interesting collocation creative inspiration for the young groups. Sunglasses and optical glasses are available, where stylish young people can find a variety of styles. Frame price is 300~500 or so commonly.
How to Choose Glasses for Face Shape?
How to choose glasses to suit my face? For the oval face shape, the walnut-shaped frames that are not too deep or narrow are a very good choice. For heart-shaped faces, the light-colored frames and rimless frames that have a light, airy appearance also are good choices. For oblong face shape, the frames with decorative or contrasting temples would be a good choice.
For square face shape, narrow frame styles are recommended. For diamond face shape, rimless spectacles and frames with oval or cat-eye shapes can be good choices. For round face shape, frames with a clear bridge and rectangular frames that are wider than they are deep would be good choices. For base-down triangle shapes, the frames with cat-eye shapes are recommended.
When selecting the eyeglasses shapes, you also need to consider other factors, such as hairstyle, eye color, and so on.
In addition, to choose eyeglasses, you can try Koalaeye Optical, which provides all kinds of glasses frames, eyeglasses, and sunglasses.
Eyeglasses String Holder Straps Cord 4 Premium Eyeglass Chains for Men Women
The eyeglasses cord is equipped with a progressive eyeglasses belt ring protection mechanism to completely prevent your eyeglasses from falling. The eyewear strap can be held close to different types of eyewear temples. This cable holder is perfect for small, wide arms. They have an eyewear chain and string with an adjustable design, and an eyewear lanyard comes with a surprise gift. They provide a lifetime warranty, so you can rest assured to buy.
The anti-reflection principle of the anti-reflection film
Anti-reflection Coating, known as anti-reflection membrane, is called anti-reflection coating in English, or AR membrane for short. The basis of anti-reflection is the wave and interference of light. The principle is: Two light waves with the same amplitude and the same wavelength are superimposed, then the light wave amplitude is enhanced. The two wavelengths and amplitudes are the same, but the superposition of wavelengths with different wave paths (similar to dislocation) cancels each other out. Therefore, the anti-reflection film plated on the surface of the lens uses this principle to make the reflected light generated by the front and rear surfaces of the film layer interfere with each other, thus canceling each other and achieving the effect of reducing reflection.
