发明名称 |
Control of an automatic darkening filter |
摘要 |
A protective automatic darkening filter (ADF) and an associated tool, such as a welding torch, are controlled by a corresponding communication unit. The invention helps to ensure that the tool is not activated before the ADF has reached its dark state. A communication channel between the communication unit and the ADF may be established using a wired or wireless medium.
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申请公布号 |
US7637622(B2) |
申请公布日期 |
2009.12.29 |
申请号 |
US20050247298 |
申请日期 |
2005.10.11 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
GARBERGS BENGT;WIEDERKEHR MARCUS |
分类号 |
G02B27/00 |
主分类号 |
G02B27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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