EXPOSURE INDICATING DEVICE

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 indi...

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Bibliographic Details
Main Authors PAOLUCCI, DORA, M, BATTIATO, JAMES, M
Format Patent
LanguageEnglish
French
Published 07.01.2010
Subjects
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HUMAN NECESSITIES
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
LIFE-SAVING
MEASURING
PHYSICS
TESTING
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Summary: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. La présente invention concerne un dispositif d'indication d'exposition disposé dans un système respiratoire. Le dispositif d'indication d'exposition comprend un élément d'optique diffractive. Ce dispositif comprend en outre un matériau présentant un indice de réfraction qui varie selon l'exposition à une vapeur chimique. Le dispositif d'indication d'exposition fournit un signal optique qui varie en termes de propriété optique, selon l'exposition à la vapeur chimique.
Bibliography:Application Number: WO2009US47360