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PROTECTIVE MASK
专利权人:
Dario Bellussi
发明人:
Dario Bellussi
申请号:
US15574859
公开号:
US20180125715A1
申请日:
2016.05.18
申请国别(地区):
US
年份:
2018
代理人:
摘要:
The magnifying system (5) of the protective mask (1) according to the invention occupies a first more central portion of the visual field of the user with a minimum focussing distance equal to or less than 10 meters. The screen (3) covers the eyes of the user allowing a more peripheral vision. The screen (3) and the sealing system, together with other possible components of the mask, form a casing that completely encloses and isolates from the external environment the users eyes and the area of the face adjacent to the eyes, forming a barrier that prevents solid or liquid projections such as, for example, solid fragments, splashes, drops or aerosol particles to penetrate into the mask (1, 1′) and reach the users eyes.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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