01. Polarizer
Polarizing film is the core component of polarized sunglasses, which utilizes the principle of light polarization to effectively block glare and make the line of sight clearer. This technology was originally invented by Dr. Edwin Land in 1937 and has since been widely used in polarized sunglasses. The main function of polarizing film is to filter out stray light from all directions, especially during driving, which can effectively reduce the impact of reflected and scattered light, and improve driving safety. In addition, it can also prevent ultraviolet rays, reduce the intake of harmful light, and thus avoid the risk of diseases such as cataracts.
02. Glass Lens
Glass lenses are the best optical material with high transparency and clarity. Its main raw material is optical glass, and different refractive indices can be obtained by adding different elements, such as white and red sheets. Although glass lenses have high hardness, scratch resistance, wear resistance, and density, their disadvantages are large mass, fragility, poor impact resistance, and poor wearing comfort. Therefore, the application of ordinary glass lenses in sunglasses is gradually decreasing. But in order to enhance its safety performance, there are options for reinforced glass polarizing lenses, which are explosion-proof and anti glare, and can effectively protect against ultraviolet rays and glare.
03. Resin lens
Resin lenses are the most commonly used lens material in modern sunglasses. It is composed of epoxy resin, a chemical substance with a phenolic structure, which has the characteristics of lightweight, high temperature resistance, strong impact resistance, and effective UV blocking. In addition, resin lenses also have the advantages of flexible processing technology, being able to meet various special needs, and being inexpensive. However, it should be noted that the surface of resin lenses is prone to scratches and deformation, and their thermal conductivity is also poor.
04. PC material
PC material, also known as carbonated polyester lenses, is an ideal choice for making sporty sunglasses. This material has excellent impact resistance and is not easily broken, making it particularly suitable for fitness and sports occasions. Compared with resin lenses, PC lenses perform better in crack resistance, are lightweight, and have good coloring properties. However, its wear resistance is poor and its optical performance is unstable. However, due to its unique advantages, the price of PC lenses is relatively high, especially favored by professional athletes.
05. Copper alloy
Copper alloy is mainly used in low-end products in sunglasses frames because of its poor corrosion resistance and susceptibility to rusting. However, copper alloys also have their advantages, such as lower cost and ease of processing. Although its mechanical properties are not as good as nickel alloy, copper alloy is still a feasible choice after surface processing treatment. Therefore, when choosing sunglasses, if the budget is limited or the mechanical performance requirements for the frame are not high, copper alloy is an option that can be considered.
06. Color changing lenses
Color changing lenses are a type of lens that can automatically adjust color according to changes in light, especially suitable for nearsighted sunglasses. This type of lens will darken in strong light and lighten in weak light, helping the eyes adapt to different lighting environments. Its working principle is to add silver halide particles to the raw material of the lens. When exposed to ultraviolet radiation, silver halide decomposes into halogen ions and silver ions, causing the lens to change color. After the ultraviolet rays disappear, the lenses will return to their original color. This type of lens is not only convenient, but also aesthetically pleasing, making it more popular than clip on sunglasses.
07. Plastic lenses
Plastic lenses are the preferred material for many sunglasses brands, mainly because they are lightweight and not easily broken. Compared to glass lenses, untreated plastic lenses perform better in UV protection and have simpler color treatment. However, the main drawbacks of plastic lenses are poor wear resistance, susceptibility to scratches, and susceptibility to deformation upon impact. Therefore, sunglasses with plastic lenses require more careful maintenance. At present, the plastic lenses on the market mainly consist of three materials: resin, PC, and acrylic
08. Non metallic materials
Non metallic materials have unique advantages in sunglasses. Metal materials, such as copper alloys, nickel alloys, and precious metals, although they have hardness, softness, elasticity, wear resistance, and corrosion resistance, may not be suitable for children’s sunglasses, and some metals are prone to oxidation, making them unsuitable for people with metal allergies. In contrast, non-metallic materials are usually lighter, less likely to cause allergies, and easier to adjust and customize. Therefore, if you are looking for sunglasses, considering non-metallic materials may be a better choice.
09. Metal Materials
Metal materials are a high-quality choice for making sunglasses frames. At present, the metal materials used for mirror frames mainly include copper alloys, nickel alloys, and precious metals. These metal materials need to have hardness, softness, elasticity, wear resistance, corrosion resistance, as well as good luster and color. Alloys such as aluminum magnesium, high nickel, nickel alloys, and stainless steel are commonly used to make sunglasses frames because they have the advantages of being less prone to breakage, good impact resistance, and less prone to deformation. However, it should be noted that certain metal materials may be heavy and prone to oxidation, making them unsuitable for individuals with metal allergies.
10. AC lens
AC lens, also known as acrylic lens, is a lens material with excellent toughness properties. It is not only lightweight and has extremely high perspective, but also has excellent anti fog performance. In addition, the hardness of AC sheets is relatively high, making them more wear-resistant. However, it should be noted that although AC sheets are more wear-resistant than PC sheets, their material is brittle and may produce brittle chips when broken. Meanwhile, its optical index stability is average.
11. Plate
The frame of sunglasses made of sheet material belongs to the mid to high end and has many advantages. Firstly, the frame of sunglasses made of sheet material is lightweight and suitable for the needs of various groups of people. Secondly, the board frame does not cause skin allergies, with a delicate, smooth, and comfortable touch, making it particularly suitable for people who are prone to allergies. In addition, the panel frame has rich colors and strong layering, suitable for young people. The texture is smooth and transparent, and the color is not easy to fade or age, with stable chemical properties. However, it should be noted that the impact resistance of the board frame is relatively poor.
12. TR90 Memory Framework
TR90 memory frame is a commonly used frame material in sunglasses, especially suitable for sports sunglasses. The advantage of this material lies in its lightweight and good elasticity, making it less prone to breakage. In addition, the TR90 framework also has a memory function that can automatically restore its original shape, further enhancing its durability. Therefore, the TR90 memory frame not only provides a comfortable wearing experience, but also has excellent durability, making it an ideal choice for sunglasses.
13. Platinum
Platinum is a type of gold alloy commonly used to make frames for sunglasses. K14 platinum consists of 58.3% pure gold, 17% nickel, 5% zinc, and 16% copper. This alloy has excellent corrosion resistance, strength, and ductility, making it an ideal material for making sunglasses frames.
14. Rubber
Rubber is a high-quality material for making sunglasses. Rubber has excellent elasticity and wear resistance, which makes rubber sunglasses both comfortable and durable to wear. In addition, rubber also has anti slip properties, which can ensure that the glasses can remain stable even in intense exercise or unstable environments. These characteristics make rubber an ideal material for making sunglasses.
15. Carbon fiber
Carbon fiber is a high-quality material for sunglasses. Carbon fiber has the characteristics of being lightweight, sturdy, and durable, making it an ideal material for manufacturing sunglasses. In addition, carbon fiber also has anti allergic and anti scratch properties, which can provide long-lasting protection. Therefore, choosing carbon fiber materials for sunglasses can ensure comfort and durability.
16. Magnesium fluoride
Magnesium fluoride is an ideal material for making sunglasses. It has excellent optical performance and can provide a clear visual experience. In addition, magnesium fluoride has strong scratch resistance and can maintain the clarity of the lens for a long time. At the same time, its impact resistance is also quite high, which can effectively protect the eyes from accidental injuries. Therefore, choosing sunglasses made of magnesium fluoride material can ensure a clear and safe visual experience.
17. Carbonated polyester eyeglass lens
Carbonated polyester lenses are an ideal choice for sunglasses. This type of lens has the characteristics of lightweight, impact resistance, and scratch resistance, making it the preferred choice for outdoor activities and high-risk situations. Compared to glass or plastic lenses, carbonated polyester lenses are lighter and more comfortable to wear. At the same time, its impact resistance also makes it safer in sports or adventure activities. In addition, this type of lens also has scratch resistance, which can maintain clarity for a long time. Overall, carbonated polyester lenses are a comprehensive and superior material for sunglasses.
18. Polyester sheets
Polyester film is a high-quality material for making sunglasses. Polyester sheets have the characteristics of lightweight and durability, which can effectively block ultraviolet rays and provide a comfortable visual experience for wearers. In addition, polyester sheets also have impact resistance, which can protect the user’s eyes in case of accidents. Therefore, choosing polyester as the material for sunglasses is a wise choice.
19. REVO Mercury
REVO mercury is a high-quality material for sunglasses. This material has excellent optical performance and durability, providing a clear visual experience. In addition, REVO mercury also has anti scratch and anti reflection characteristics, which can effectively reduce light interference and improve visual comfort. This material usually also has high impact resistance, which can protect the eyes in case of accidental collisions or falls. Overall, REVO mercury is a high-performance material for sunglasses, suitable for long-term outdoor activities or high-intensity visual needs.
20. Natural materials
Natural materials have unique advantages in sunglasses. Firstly, natural materials such as bamboo, wood, and natural minerals are usually lighter, providing a comfortable wearing experience for the wearer. Secondly, these natural materials often have unique appearances and textures, adding artistic and cultural value to sunglasses. In addition, natural materials are usually more environmentally friendly because they come from nature and generate less waste during the production process. Overall, choosing natural materials for sunglasses is not only for comfort and aesthetics, but also for a more environmentally friendly lifestyle.