发明名称 |
EXPOSURE INDICATING DEVICE |
摘要 |
<p>An exposure indicating device disposed in a respirator system. The exposure indicating device comprises a diffractive optical element. The exposure indicating device comprises a material having an index of refraction that changes as a function of exposure to a chemical vapor, where the exposure indicating device provides an optical signal that changes in optical property as a function of exposure to the chemical vapor.</p> |
申请公布号 |
EP2307103(A4) |
申请公布日期 |
2014.12.24 |
申请号 |
EP20090774027 |
申请日期 |
2009.06.15 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
BATTIATO, JAMES, M.;PAOLUCCI, DORA, M. |
分类号 |
A62B18/08;G01N21/47;G01N21/77 |
主分类号 |
A62B18/08 |
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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