G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 5/20 (2006.01) C09K 9/00 (2006.01) G03C 1/73 (2006.01)
Patent
CA 2550508
The invention is directed to a photochromic material that filters, from solar radiation, near infrared radiation and sufficient portions of ultraviolet radiation while transmitting actinic radiation in the wavelength range of about 341 ~ 5 nm. The light-transmitting photochromic material provides light and heat stability to achieve a longer useful life. This photochromic material is preferably incorporated in a multilayered structure with constituents provided on or contained within one or more layers to enhance the resistance to light fatigue.
Le matériau photochromique décrit élimine par filtrage le rayonnement infrarouge proche et des parties suffisantes du rayonnement ultraviolet contenus dans le rayonnement solaire, tout en laissant passer le rayonnement actinique dans une plage de longueurs d'onde de 341 plus ou moins 5 nm environ. Le matériau photochromique photo-transmetteur assure la stabilité à la lumière et à la chaleur et permet de prolonger la vie utile. Ce matériau photochromique est de préférence incorporé à une structure à couches multiples ayant des composants dans ou sur une ou plusieurs couches qui augmentent la solidité à la lumière.
Lintec Corporation
Ridout & Maybee Llp
LandOfFree
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