PhotoChromic Glasses Explained

變色鏡片是感應紫外線，在陽光下鏡片逐漸變黑，而在室內光線下回復透明原狀的一種鏡片。 變色鏡片可以自行調節進入眼睛的光線量，並過濾紫外線達到保護眼睛的效果，最大的好處就是不需在戶內外進出時頻頻更換眼鏡。 變色鏡片在60年代由康寧玻璃發明，而在90年代由全視線 (Transition) 發揚光大，通俗英文中甚至直稱變色鏡片為 Transition lens 而不稱其本名photochromic lens。 不過這兩者之間是有差異的，康寧鏡片的材質是玻璃，玻璃變色鏡片的基本原理，是在鏡片材質中混入上百萬的鹵化銀

A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of activating light, the lenses return to their clear state.

Photochromic lenses aren’t just about convenience—they’re a shield for your eyes. Most high-quality variants, such as Vlook’s Photochromic lenses, provide 100% UV protection, blocking harmful UVA/UVB rays linked to cataracts and ma

In simple terms, photochromism is a mechanism by which ophthalmic glass darkens outdoors, when exposed to ultraviolet (UV) rays, and fades back to its initial transparent state indoors or behind a UV-filtered window. The result is added vision comfort and

當變色眼鏡在室內、沒有紫外線時，鏡片通常是純透明或是淺色（例如淺灰色或淺茶色）；而到戶外、經由紫外線照射，鏡片就會自動變深色（例如深灰色、深茶色）。 ????為什麼變色鏡片會「變色」呢？ 因為鏡片中含有氯化銀、鹵化物等特殊的化學物質，這種物質一遇到紫外線就會發生化學反應、讓鏡片變深色，當紫外線消失時，化學反應停止，鏡片就會慢慢恢復原來的顏色。 （二）變色眼鏡就是全視線眼鏡嗎？ 變色眼鏡不一定是全視線眼鏡。 變色鏡片是一項「技術」，而「全視線」是一家專門研發變色鏡片的「公司」，也是「商標」。 也就是說，如果

Photochromic lenses, also known as adaptive or “ transition lenses,” are intelligent lenses designed to protect the eyes from bright light and harmful ultraviolet (UV) rays. They provide a “sunglass effect,” which means they darken

WebMD explains how photochromic lenses work, their benefits, and the different types. Learn how they protect your eyes and improve vision in various lighting conditions.