Views:121 Author:Site Editor Publish Time: 2020-09-01 Origin:Site
Can you believe that the lenses of spectacles in the past were entirely made of glass? Although glass is excellent in optics, it is heavy and dangerous because you may be injured or blind! Nowadays, modern science and technology have made great progress, leading to the fact that we can see lenses of various materials on the market today. Photochromic polarized sunglasses, photochromic reading glasses, reading photochromic glasses are loved by people of all ages. They combine suitability and fashion. High-tech plastic materials are used to make lenses that are lighter, more durable and less prone to breakage. We have also seen the development of "filters" or "coatings" which help protect your eyes from ultraviolet rays.
Just like a camera lens, light can enter and touch the sensor to capture high-quality images. Optical lenses are a way to properly focus light on the retina and enhance vision. Ultimately, this means that any lens option you choose should fit the vision area you wish to correct.
If you often participate in sports or lead an active lifestyle, then these are the ideal choices for you. They are ideal for children who are just beginning to wear glasses because they may not be used to it and often drop it. This is mainly because the lens itself is scratch resistant. You can save some money because the cost of repairing broken or damaged lenses can be high. Polycarbonate lenses are very popular because they provide adequate UV protection.
Trivex lenses are a new type of lens, very similar to those made of polycarbonate. This is because it has the same lightweight characteristics. This helps to improve the quality of vision correction. Some people say they prefer polycarbonate lenses because they have greater impact resistance and provide a better viewing experience.
If your eyes have a high degree of power and need 24/7 glasses, then high refractive index plastic lenses will be the most suitable because they are specifically designed for this purpose. Because they are used daily, manufacturers have made it thinner and lighter than standard lenses made from other materials.
The more popular and widely used typical optical lens is spherical. As the name implies, the design of aspheric lenses does not work like your mill spherical lenses. They have different curvatures on the lens surface， this means that the lens is actually flatter and thinner.
For people living in warm and sunny climates, photochromic lenses are the best choice. If your country is also accustomed to receiving a lot of direct sunlight, then you might as well try it. If you don’t like prescription sunglasses very much, they are also useful because it is annoying to have to change the optical glasses to light glasses. These lenses are usually made of plastic or bile, and will change from transparent to colored in the sun. For safety reasons, they do not turn black and block ultraviolet rays from the sun.
If you are a regular purchaser of sunglasses, you may have heard of polarized sunglasses. As one of the most popular choices for sunglasses, they protect your eyes from the harmful UV rays of the sun. The function of polarized sunglasses can polarize the light, so it can block all harmful light without affecting the transmission of visible light, and can truly achieve the function of protecting eyes. There are other similar anti-glare and anti-road reflected light, waterproof surface scale light and other functions, polarized sunglasses are suitable for starting, fishing, traveling and other outdoor activities and daily wear, which allows you to have a good visual experience outdoors.