ARRANGEMENT AND METHOD FOR INCREASING THE FUNCTIONAL SAFETY OF AN OPTO-PYROTECHNIC INITIATOR
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United States of America Patent
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Issued Date -
Jul 25, 2024
app pub date -
Aug 18, 2022
filing date -
Aug 19, 2021
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Abstract
An arrangement has an opto-pyrotechnic initiator, at least one laser, and an optical fibre, via which the laser radiation of the laser is guided to the opto-pyrotechnic initiator. Also disclosed is a method for improving the safety of such an opto-pyrotechnic initiator. At least one optical filter element having power-dependent or intensity-dependent transmission or reflection is arranged in the beam path of the laser radiation between the laser and the initiating impingement location of the laser radiation in the initiator. The filter element and the beam guidance for the laser radiation are selected such that for a laser power of the laser, that is intended to effect an initiation, the filter element has a higher transmission or reflection or can be switched to a higher transmission or reflection than for a lower laser power by application of an optical or electronic signal that is independent of the laser radiation.
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