photochromic


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photochromic

Materials that change their ability to reflect color when exposed to light are called photochromic, and the color change is proportional to their level of UV light absorption. This results in reversible color reflections. When the light source is terminated, the material changes back to a clear state. See also: Smart materials
References in periodicals archive ?
Sergey Danilov, director of DanCo Decor Company, names the following advantages of the new decoration method: "Graphic elements printed by special photochromic dyes change color when exposed to ultraviolet light or sunlight.
Organic photochromic compounds are one kind of candidates for optical memory (8), (9), especially for rewritable optical memory.
Hager Elites offer photochromic lense technology; meaning their lenses automatically adapt to lighting conditions to reduce glare and help minimize eye fatigue throughout the workday.
It is also advising people to follow these sunglasses tips: * Check sunglasses comply with BSEN 1836: 1997 or carry the CE kite mark and are marked UV 400; * If you already have sunglasses, take them into your local optician to be UV tested; * Invest in photochromic lenses, which instantly adapt to light changes, darkening in bright light.
Zeal makes sunglasses and ski goggles that incorporate the company's patent-pending photochromic technology, meaning it changes tint to match the available light.
Some topics covered include energy transfer and electronic energy migration processes, optical properties of polyelectrolytes, photochromic polymers for optical data storage, and optical and luminescence properties and applications of metal complex-based polymers.
Revision Eyewear has recently announced its debut in light sensing lens technology with the new Photochromic Hellfly Ballistic Sunglasses.
Revision Eyewear's light-changing feature in its new Photochromic Hellfly Ballistic Sunglass makes them a customer's must-buy item.
PhotoChromatic refers to photochromic, which means capable of changing color on exposure to radiant energy (or light).
You can help yourself by keeping a clean and unscratched pair of sunglasses handy, however you must avoid photochromic lenses.
When it comes to photochromic degradation, I am in terrific shape.
The ferry lookout, who was 60 and slightly short-sighted, was wearing glasses with photochromic lenses which "effectively reduced his ability to see small lights by at least 20%", the report added.