Bestsea Eyewear Manufacturer In China

Polarized lenses are one of the most used lenses in middle and high-end eyewear. The common ones are CR-39 Polarized lenses and TAC Polarized lenses, while nylon and PC Polarized lenses are relatively rare. Here we mainly introduce CR39 Polarized lenses. It is sandwiched between two CR-39 lenses with a thin poly film. Its function is to filter out the reflected light at some angles, which is especially suitable for drivin and fishing, or to reduce some light when traveling outdoors. CR39 Polarized lenses are suitable for fishing Feature of Polarized lenses. CR-39 Polarized lenses has the feature of good light transmittance, high hardness, not fragile, moderate weight (similar to CR-39 Sunlens), and is the most used Polarized lenses in middle and high-end polarized eyewear, Especially acetate sunglasses, metal sunglasses and buffalo horn eyewear. Craft of Polarized lenses. First make two pieces of CR-39 lens with the same curvature, and then use the machine to sandwich the poly film in

PC lenses are polycarbonate lenses. Since the main material of this lens is polycarbonate, this material is widely used in the eyewear industry. This kind of lens looks very thin and light in weight, so most people call it a space lens, so that the characteristics of the material can be described more vividly. We know that most high-end eyewear, such as acetate eyewear , metal eyewear, titanium eyewear and horn eyewear , use CR39 lenses or nylon lenses. What frames materials will PC lenses be used for and what are their features? Thin and light, also called space lens Feature of PC lenses 1: PC lens is also a resin material, but its weight is very light, 37% lighter than common resin lenses, which can relieve the pressure of the lens on the bridge of the nose. And the lens is very thin.  Feature of PC lenses 2: Good impact resistance. Everyone is familiar with resin lenses, which have better impact resistance, but the impact resistance of PC lenses is far greater than that of resin le

The nylon lenses is made of nylon material, which is a transparent polyamide, which breaks the regularity of molecules by introducing side groups into the molecular chain and inhibits the formation of crystals, thereby obtaining transparent polyamide. Nylon lenses are widely used in eyewear of various materials because of their good light transmittance and strong toughness, including acetate eyewear, metal eyewear and titanium eyewear , especially half-frame, rimless and eyewear with less regular lens shapes. Nylon lenses for rimless eyewear Features of nylon lenses. The main features of nylon lenses are good toughness, strong impact performance And good transparency (slightly worse than CR39). The main disadvantage is that the wear resistance is worse than CR39, and the production cost is higher than CR39. It is one of the most commonly used sunglasses lenses. The craft of nylon lenses. Customize the mold according to the size, thickness, and curvature of the lens, and then use nylon

What is CR39 sunglasses lenses?The CR39 resin lens material is a thermosetting resin. The mold is opened first, and then it is manufactured by compression casting.  which was developed by the Columbia Research Institute of PPG Company in 1942, so it is called "Columbia resin". CR39 lens is one of the most used lenses.At present, most of the resin lenses  for correcting vision and sunglasses are made of CR39 resin material,CR39 sunglasses lenses are currently one of the most widely used lenses, widely used in various types of frames, especially mid-to-high-end acetate sunglasses and metal sunglasses.  CR39 sunglasses lenses for acetate sunglasses Features of CR39 sunglasses lenses. Among the most commonly used lenses of CR39, nylon, and PC, CR39 has the characteristics of good light transmittance, high hardness, not fragile, moderate weight, and rich colors. It is one of the lens types that many consumers love and is widely used. Now popular acetate sunglasses, metal sunglass

Lenses are one of the most important parts of eyewear. If they are types by function, which eyewear lenses are there? This article mainly introduces what kind of eyewear lenses by the function. There are Sunlens, optical lenses, reading lenses, Demo lens, poly Sunlens, etc. Types of eyewear lenses 1: Sunlens. Sunlens are mainly used on various kinds of sunglasses, including acetate sunglasses, metal sunglasses, etc. Sunlens are based on white lenses, which are colored through a special process, or a layer of film is added on the surface. Generally there are single color and progressive color lenses. The function of each color lens is also different. For details, please refer to our " What are the functions of sunglasses " page. Sunlens are mainly used in sunglasses with different materials and functions, such as acetate sunglasses, metal sunglasses, horn sunglasses, etc. Types of eyewear lenses 2: Optical lenses. Optical lenses are mainly spectacles with degrees. Nowadays，Wi

What are the 3 types of lenses for glasses? If types of lens by material, they can be divided into glass lenses, resin lenses, and crystal lenses. In addition,the types of lenses can be classified by  functions and spherical shapes. This article mainly talks about classifying lenses by material. 1: Glass lens. Glass is the earliest material used as glasses lens. Although the current lenses are generally resin lenses, glass lenses played an irreplaceable role in that era. The advantage of glass lens is that it is very hard and the permeability is high, but the disadvantage is that it is relatively heavy and it is the heaviest lens of all types. Applicable: acetate sunglasses , metal sunglasses. Among the more famous brands, Ray-Ban is one of the brands with the most glass lenses. 2: Resin lens. Light weight, not fragile, and safety are the biggest characteristics of optical resin materials. Its weight is about one-half of the glass lens; its impact resistance is 10 times higher than t

Now the most popular glasses include acetate eyewear, metal glasses, titanium frames and buffalo horn eyewear . On the surface of the glasses, we can see some words, some are the guest's logo, some are the style number, or the advertising language. How are these words or patterns made on the glasses?What is the printing process of glasses?Eyewear manufacturer Bestsea tell you the eyewear printing process. eyewear printing on the temple The most common glasses printing processes are as follows: 1. transfer-print is one of the most common glasses printing processes. The approximate process is: engraving the steel plate (corrosion of pictures and texts on the steel plate through a specific process), fix the steel plate on the pad printer, make the glasses positioning mold, put in the prepared pad printing oil, Put in the glasses and start the machine, and print good to dry. 2. Hot stamping is one of the more commonly used printing processes for acetate frames. The approximate proces

If divided by material: eyewear can be divided into acetate eyewear, metal eyewear, titanium eyewear, aluminum eyewear, buffalo horn eyewear and so on. What are the types of eyewear frames? Common types of eyewear frames are full frame, half frame, frameless, combination frame and folding frame. 1. Full frame: It is the most commonly used frame type now. It is strong and easy to shape, and can cover part of the thickness of the lens. 2. Half frame (some are also called nylon wire frames): use a very thin nylon wire as part of the frame, the lens is specially polished to smooth the lower edge, and there is a narrow groove in the lower edge, so that the nylon wire is embedded in the groove In the form of a bottomless frame, the weight is very light, giving people a light and unique feeling, and it is relatively strong. 3. Frameless (also often called three-arrow frame, etc.): This type of frame has no lens ring, only a metal nose bridge and metal temples. The lens, the bridge of the n

Sunglasses have lenses of many colors, so do you know the difference in the effects of different colors of sunglasses? Today, Bestsea eyewear manufacturer will come to understand the role of different colors of sunglasses with everyone. 1. Tawny sunglasses are the best companion for drivers Because the brown lens can block the reflected light from the smooth and shiny surface, the driver can see the subtle parts of the object clearly. At the same time, the brown lens can filter out a large amount of blue light, which can improve the visual contrast and clarity, so that the driver can maintain a clear line of sight even in severe air pollution or foggy conditions. 2. Silver sunglasses are the first choice for outdoor sports The reason why silver sunglasses are the first choice for outdoor sports is because the outdoor vision is wide and the light is sufficient, which will make people unacceptable for a while. The silver lens surface uses a high-density mirror coating, the lens can absor