What kind of lenses does the all round plastic lens belong to?

Updated on number 2024-04-25
6 answers
  1. Anonymous users2024-02-08

    Plastic lenses are made of organic materials, and the inside of them is a polymer chain structure, which is connected to a solid mesh structure. The light transmittance of plastic lenses is 84%-90%, and the light transmittance is very good, and it has strong impact resistance, is very lightweight, and has low composition, but the surface is poor in wear resistance and easy to scratch.

    Resin lenses are lenses made of organic materials, and resins can be divided into natural resins and synthetic resins. Natural resin is a hydrocarbon exudant from a variety of plants, especially pine and cypress plants, because it has a special chemical structure and can be used as a latex paint and adhesive.

    Resin is a mixture of a variety of polymer compounds with different melting points. There are many types of resins, which are widely used in light and heavy industries, and can often be seen in daily life, such as plastics, resin glasses, and coatings. Resin glasses are lenses that are chemically synthesized from resin as a raw material and processed and polished.

    The tree sells the advantages and disadvantages of sedan fat lenses

    The advantage of plastic lenses is that they are very lightweight; And it has a strong impact resistance, which is several times that of glass, so it is not easy to break, and it is relatively safe and durable; Good light transmittance; The ingredients are also relatively low. However, plastic lenses also have disadvantages, that is, their surface abrasion resistance and chemical corrosion resistance are relatively poor, and the surface is relatively scratched.

  2. Anonymous users2024-02-07

    Resin lens is an organic material, and the inside is a polymer chain structure, which is connected and forms a three-dimensional network structure, which can be divided into two types: natural resin and synthetic resin.

    This material is transparent, yellowish, not easy to color, rigid and tough, the impact strength is particularly large, is more than C-39 L0 times, among the best in thermoplastic materials, the design can be very thin, the center thickness of 1 0mm, the ball test is negative. It has good stability to heat, thermal radiation, air and ozone.

    In addition, all ultraviolet rays below 385nm are absorbed, making it a true safety lens. In addition, it has high heat resistance, resistance to oils, greases and acids, low water absorption, high dimensional stability, and it is an environmentally friendly material that can be used countless times.

  3. Anonymous users2024-02-06

    Summary. Hello dear, I'm glad to answer your questions.

    First, the materials are different.

    1. Polyester lenses: they are all thermosetting materials, that is, the raw materials are liquid, and the solid lenses are formed after heating.

    2. Resin lens: It is an organic material, and the inside is a polymer chain structure, which is connected and presents a three-dimensional network structure, the intermolecular structure is relatively relaxed, and there is space for relative displacement between the molecular chains. The light transmittance is 84%-90%, the light transmittance is good, and the optical plastic lens has strong impact resistance.

    The difference between polyester lenses and plastic lenses.

    Hello dear, I'm glad to answer your questions. 1. Different materials 1. Polyester lenses: they are all thermosetting materials, that is, the raw materials are liquid, and solid lenses are formed after heating.

    2. Resin lens: It is an organic material, and the inside is a polymer chain structure, which is connected and presents a three-dimensional network structure, the intermolecular structure is relatively relaxed, and there is space for relative displacement between the molecular chains. The light transmittance is 84%-90%, the light transmittance is good, and the optical plastic lens has strong impact resistance.

    2. Different advantages 1. Polyester lenses: strong impact resistance and light weight. 2. Plastic lens: light weight, strong impact resistance, good light transmittance, low cost.

    3. Different disadvantages 1. Polyester lenses: This kind of lens will also be deformed after excessive heating after being finished, and it is not suitable for high humidity and heat occasions. 2. Resin lens: surface abrasion resistance, chemical resistance is worse than glass.

  4. Anonymous users2024-02-05

    Summary. There are several differences between polyester lenses and resin lenses:

    1.Quality. Polyester lenses are lighter in weight and are currently one of the lightest optical lenses; Polyester lenses are about 30% lighter than ordinary plastic lenses and about 50% lighter than glass lenses.

    The difference between polyester lenses and plastic lenses.

    There are several differences between polyester lenses and resin lenses:1Quality polyester lenses are lighter in weight and are currently one of the lightest optical lenses; Polyester lenses are about 30% lighter than ordinary plastic lenses and about 50% lighter than glass lenses.

    2.**Polyester lenses are more expensive than plastic lenses.

    3.The impact resistance of polyester lenses is 10 times stronger than that of resin sheets, and the polyester material is a viscous material, with strong toughness, not easy to break, and super impact resistance, more than 60 times stronger than glass sheets.

    4.Anti-ultraviolet function Polyester lenses have strong anti-ultraviolet function, and the polyester material itself has the function of anti-ultraviolet rays, which can almost achieve 100% anti-ultraviolet ability; At the same time, the material is not easy to change color. At the same time, the plastic lens can also effectively prevent ultraviolet damage to the eyes after being coated with a coating.

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  5. Anonymous users2024-02-04

    cr-39

    This material is an abbreviation of propylene diethylene glycol carbonate, also known as Colombian resin or resin lens ADC resin, which belongs to thermosetting materials.

    PMMA, commonly known as plexiglass, is polymethyl methacrylate, which is a thermoplastic material.

    PC stands for polycarbonate, which is a thermoplastic material.

  6. Anonymous users2024-02-03

    Resin lenses are lenses that are chemically synthesized with resin as raw materials and processed and polished.

    Resin is a hydrocarbon (hydrocarbon) secretion from a variety of plants, especially pine and cypress plants. It is valued for its special chemical structure and its ability to be used as an emulsion paint and adhesive.

    Resins can be divided into two types: natural resins and synthetic resins. There are many types of resins, which are widely used in light and heavy industries, and can often be seen in daily life, such as plastics, plastic glasses and coatings.

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