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We include products that we think are useful to readers. If you buy through the link on this page, we may earn a small commission. This is our process. In addition to your style and lifestyle, considering your face shape can help you find glasses that fit better and enhance your natural character...Read more »
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So let’s just take a quick look at what blue light is. Short-wave blue light is relatively high-energy light with a wavelength between 400nm and 480nm. The blue light in this wavelength will increase the amount of toxin in the macular area of the eye, seriously threatening our fundus health...Read more »
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A sphere is the whole surface with one curvature, just like cutting from a sphere, and a non-sphere is a different curvature, like maybe cutting from an ellipse. The purpose of the spherical aberration is to solve the problem of spherical aberration, because the spherical surface has different fo...Read more »
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1.base material quality. The substrate quality determines the durability of the lens and the reliability of the coating. Good substrate clear and bright, long use time and not easy to yellow; And some lenses do not take long to turn yellow, and even the coating falls off. Good lens without a scra...Read more »
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Enter your email and keep up to date with newsletters, event invitations and promotions via Vogue Business’s email. You can unsubscribe at any time. Please refer to our privacy policy for more information. The eyewear industry has not kept up with the pace of other fashion industries, but a...Read more »
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According to a Bloomberg report on Wednesday, the 11-year-old company started as an e-retailer and later opened about 130 stores in the United States. It is considering an initial public offering as early as this year. The New York-based company has accumulated a large number of customers by o...Read more »
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Speed is one of the main characteristics of Carl Zeiss PhotoFusion lenses. According to the climate and light conditions and lens materials, they are said to darken 20% faster than previous ZEISS photochromic lenses, and importantly, the fade speed is twice as fast. It may take 15 to 30 seconds...Read more »
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The bicycle industry has become one of the few beneficiaries of the coronavirus pandemic as people are looking for ways to stay active, entertain children and commute to work. It is estimated that bicycle sales across the country soared by 50% last year. This is good news for domestic bicycle man...Read more »
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The bicycle industry has become one of the few beneficiaries of the coronavirus pandemic as people are looking for ways to stay active, entertain children and commute to work. It is estimated that bicycle sales across the country soared by 50% last year. This is good news for domestic bicycle man...Read more »
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Dallas-Fort Worth’s patent activity ranks 11th out of 250 metropolitan areas. The patents granted include: • Textron Innovations’ autonomous package delivery aircraft • Siemens Industry Software using a two-dimensional scanning architecture for chain testing and diagnosis • Bank of America’...Read more »
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AAAS login provides AAAS members with access to Science, provides users who purchase individual subscriptions with access to other journals in the Science series, and provides limited access to users who register for access. eLetters is an online forum for continuous peer review. The submission o...Read more »
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A Chinese company called CHIOPT has developed its first full-frame movie zoom lens called Extreme Compact Zoom 28-85mm/T3.2. CHIOPT stated that this lens is a “super cost-effective” FF Cine Zoom lens, and it is the first in a series of high-end cinema lenses designed for the film indu...Read more »
