Sunglasses
Eyewear designed to protect the eyes from bright sunlight and UV rays.
What is it?
Sunglasses are glasses with tinted lenses that reduce the amount of light entering the eyes. They can also block ultraviolet (UV) radiation, which is harmful to the eyes. Modern sunglasses come in many styles and are made from materials like plastic, metal, and polycarbonate. The first sunglasses were made in China around the 12th century using smoky quartz. In the early 1900s, tinted glass lenses became popular for reducing glare. Today, sunglasses often have polarized lenses and UV-blocking coatings. They are both a practical tool and a fashion accessory, with designs ranging from classic to avant-garde.
Why it matters
Sunglasses help keep your eyes healthy and comfortable. They are also a popular fashion accessory that lets people express their style. Understanding how they work can help you choose a good pair.
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Related
墨镜
旨在保护眼睛免受强烈阳光和紫外线伤害的眼镜。
它是什么？
墨镜是有色镜片的眼镜，可以减少进入眼睛的光线量。它们还可以阻挡对眼睛有害的紫外线辐射。现代墨镜有多种款式，由塑料、金属和聚碳酸酯等材料制成。最早的墨镜大约在12世纪的中国用烟色石英制成。20世纪初，有色玻璃镜片开始流行以减少眩光。如今，墨镜通常具有偏光镜片和防紫外线涂层。它们既是实用工具，也是时尚配饰，设计从经典到前卫。
为什么重要
墨镜有助于保持眼睛健康和舒适。它们也是一种流行的时尚配饰，让人们表达自己的风格。了解它们的工作原理可以帮助你选择一副好的墨镜。
你在哪里见过它
当你收集更多与墨镜相关的物品时，这个列表会不断增长。
