VISIÈRE PHOTOCHROMIQUE EN FORME D'ARC ET MÉTHODE DE PRODUCTION

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专利权人:

SL;Mat Product & Technology

发明人:

申请号：

EP19382957.9

公开号：

EP3620286A1

申请日:

2019.11.04

申请国别(地区):

EP

年份:

2020

代理人:

摘要：

An arc-shaped photo-chromic visor which includes an outer layer (31) made of a plastic transparent to visible light and partially UV-transparent in the UV-A range adjacent to the visible light and an inner layer (32) made of a photo-chromic foil (20) reactive under UV light in a portion of the UV-A range adjacent to the visible light which is placed in the concave side of the outer layer (31).

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/