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US 2021/0333201 A1Published application
Fabry-perot spectrometer-based smoke detector
AssigneeKidde Technologies, Inc.
InventorsElbert Jeyapaul, Thambiraj Avudaiappan
Life of this patent
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Abstract
A smoke detector includes a laser light source to provide incident light. The smoke detector also includes a Fabry-Perot etalon to transmit some incoming light, which is produced from the incident light, as transmitted light. Smoke particles in a cavity of the Fabry-Perot etalon affect an intensity of one or more wavelengths of the transmitted light.
Claims20
A smoke detector comprising:
- a laser light source configured to provide incident light;
- and
- a Fabry-Perot etalon configured to transmit some incoming light, which is produced from the incident light, as transmitted light, wherein smoke particles in a cavity of the Fabry-Perot etalon affect an intensity of one or more wavelengths of the transmitted light.
A method of assembling a smoke detector, the method comprising:
- configuring a laser light source to provide incident light;
- and
- disposing a Fabry-Perot etalon to transmit some incoming light, which is produced from the incident light, as transmitted light, wherein smoke particles in a cavity of the Fabry-Perot etalon affect an intensity of one or more wavelengths of the transmitted light.
Dependencies are inferred from the claim text.