A plastic optical lens is a thin sheet with convex or concave surface. It has refractive power and it is made of plastic material. Polymer, especially PMMA (Polymethyl methacrylate) and PET (Polyethylene terephthalate), which are transparent thermoplastic materials, are mainly used for producing them. They have outstanding optical performance such as high light transmission, low birefringence, low spherical aberration and distortion, good scratch resistance etc. By virtue of its advantages in cost, fabrication process, weight, performance and easy-to-apply features; polymer optical lenses gain popularity among people in recent years.
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Applications:
A material that is superior in multiple aspects may be more suitable for a specific application than an inferior material with exceptional characteristics. This can often be said about plastic optical lenses, as these possess many great qualities for a myriad of applications. With specific attributes like impact resistance, light weight, scratch resistance and low moisture absorption plastic optical lenses are commonly used in industries such as fishing tackle, medical instruments and aerospace construction.
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Due to their ultra-low weight and durable nature, plastic optical lenses are a popular choice for use in smartphones. These miniature lenses are also found in desktop monitors and laptops for superior screen quality. Other industries that frequently use plastic optical lenses include digital cameras, 3D movie cameras, DSLR cameras, GPS units and wearables such as smartwatches and fitness trackers.
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Manufacturing Process
The manufacturing process of plastic optical lenses consist of two stages: preform and final processing. Preforms are produced at large plastic extrusion plants and in different forms. The optical quality depends on raw material properties, while their properties during further processing depend on technology parameters (flow rate, temperature, barrel length) and processing conditions (running speed).
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After forming plastic lenses are usually injection-molded by small to medium injection molding machines with a 2-part clamping device. This results in products with very low cost. One big advantage is that optics can be processed directly after being molded. Polycarbonate is commonly used as optically clear resin because it shows high mechanical stability even under ambient conditions.
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Market demand
By 2028, the global optical lens market will be worth $ 25,868.81 million, with a 7.33 percent compound annual growth rate. Because of the rising use of convex and concave lenses in the vehicle industry, the optical lens market is expected to rise substantially in the future years. Due to rising population, rising living standards, rising disposable income, expanding interstate trade, and expanding building and mining operations, the market for passenger vehicles, commercial vehicles, and off-road vehicles is expanding.
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The optical lens is commonly utilised for mirrors and headlights in automobiles, paving the way for the optical lens sector. Plastic is a well-known material that is used to make optical lenses for eyeglasses, sunglasses, and other products. The market for such items is quickly expanding, with a projected value of USD 45 billion by 2025. Because of growing awareness of the health risks associated with long-term use of glasses made of polycarbonate or other materials, there has been a considerable increase in demand for plastic optical lenses, which are not only lighter and less expensive than glass optical lenses but also safer.
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Though their manufacturing costs are more than those made of polycarbonate, their premium quality, excellent durability, and ability to provide wide vision angles make them both stylish and comfortable. Companies operating in the global market have benefited from these factors and have experienced an increase in revenues over time, since individuals spend significant amounts of money on clothing and accessories, just as they do on lenses. Growing awareness of safety hazards, lifestyle changes brought on by urbanisation and globalisation, and rising disposable money have all boosted the global demand for plastic lenses. Asia Pacific currently leads global sales, followed by North America.
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Key Players:
· Appasamy Ocular Devices Pvt. Ltd.
· Bausch & Lomb India Pvt. Ltd.
· Eagle Optics Pvt. Ltd.
· Essilor India Pvt. Ltd.
· G K B Hi-Tech Lenses Pvt. Ltd.
· G K B Ophthalmics Ltd.
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