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WELDING HELMET HAVING A FILTER ARRANGEMENT
专利权人:
Kristina Magnusson;Kenneth Jarefors
发明人:
Kristina Magnusson,Kenneth Jarefors
申请号:
US13989123
公开号:
US20140013479A1
申请日:
2011.11.28
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A welding helmet (100, 200, 300, 400, 500) having a filter arrangment is disclosed. The welding helmet is provided with a main filter (102, 202, 302, 402, 502) and at least one auxiliary filter (104, 204, 304, 404, 504) separate from and positioned next to the main filter. The at least one auxiliary filter comprises an electro-optic element (10, 20) adapted to attenuate the transmission of optical radiation incident on the auxiliary filter.
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