Tungsten Carbon Steel Spectacle Frame
Tungsten-carbon steel is an upgraded version of TR90. Its characteristics are basically lighter, softer, and higher in hardness than the original TR90. It is said to be the material softer than water, lighter than paper, and harder than steel. Tungsten-carbon materials are also called yellow materials in the glasses industry, and the terms of tungsten-carbon plastic are only for consumers because consumers do not know what they mean.
In terms of raw materials, titanium is the most expensive material, and the value of raw materials determines the final retail price of the glasses. The cost of tungsten carbon is slightly higher than the price of TR90 by about 20%, which is about the same as the value of low-end alloy glasses. The cost and value of pure titanium are 3 to 4 times that of TR90 and low-end alloy glasses, so the basic price difference between a pair of brand new pure titanium glasses and TR90 glasses is very large.
How to buy anti-blue light products?
In order to further standardize anti-blue light products and make all kinds of products effectively protect eye health, relevant standards have been formulated. Based on the different effects of blue light in different bands on the human body, the transmittance of blue light in each band is required in the standards.
For example, in the band range of 415-445 nm, the transmission ratio of light is less than or equal to 80%, and more than 445 nm, it is greater than 80%.
YOUCAN Rimeless Eyeglasses
YOUCAN rimless glasses convey noble quality, a true classic, and a core value image to all the people who pursue true fashion all over the world. The real rarity of something is always a symbol of your status. With its unique design concept, personalized customer service, each pair is like a diamond. The design fully reflects the sense of nobility, novel, rich color, avant-garde fashion, full of vigor and vitality, so that each wearer can feel the elegance and personality. It can let more stylish young gens enjoy the exquisite life that does not cut edge to set a diamond without frame.
The Advantages of Trifocal Lenses
The greatest advantage of trifocal lenses is that they have three prescriptions in one, which means that not only do you not have to buy three separate pairs of glasses, but you also won’t have to constantly change them as you go about your day.
Another advantage of trifocal lenses is that in some cases, they offer a broader viewing area for near and intermediate-distance applications like reading and using the computer.
They attract a lot of customers through promotions and regular sales, but if they will come back after a purchase is reflected in the service. Now, in terms of service, many optical shops are still relatively homogeneous, which requires entrepreneurs to pay more attention to service details like the accuracy of optometry, the comfort of wearing.
What is an aspheric lens?
Strictly speaking, any lens with a refractive surface that is not a sphere is an aspheric lens, including ordinary astigmatism lens, progressive multi-focal lens, Aspheric apical lens, etc. But customarily, our daily aspheric lens refers to the Aspheric apical lens. From the center of the lens to the periphery, the radius of curvature increases (the surface of the lens flattens out).
Founded in 1992, Thornebrook Optical is a full-service optical boutique company. It strives to provide patients with the highest quality of vision care and services. There are endless lens options, including the latest technologically advanced lenses. They use a local lens lab to make prescription lenses. They offer price-matching contact lenses with next-day delivery to most major brands. They help you choose the right size, shape, and color of your frame, and select the latest lens technology for your new prescription. The goal is to improve your vision and appearance through precise prescriptions and the right choice of glasses that suit your vision and lifestyle needs.