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US 12,326,430 B2Granted
Hydrogen sulfide imaging system
AssigneeRebellion Photonics, Inc.
InventorsRobert Timothy Kester, Nathan Adrian Hagen
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Abstract
Various embodiments disclosed herein describe an infrared (IR) imaging system for detecting a gas. The imaging system can include an optical filter that selectively passes light having a wavelength in a range of 1585 nm to 1595 nm while attenuating light at wavelengths above 1600 nm and below 1580 nm. The system can include an optical detector array sensitive to light having a wavelength of 1590 that is positioned rear of the optical filter.
Claims13
An infrared imaging system for detecting hydrogen sulfide (H2S) gas comprising:
- an optical detector array;
- and
- an optical filter associated with a passband that selectively passes light within a band of infrared wavelengths, wherein the passband transmits a first signal representing hydrogen sulfide (H2S) and a second signal representing one of carbon dioxide (CO2), methane (CH4), water (H2O), or sulfur dioxide (SO2),
- wherein the first signal comprises a first peak within the passband, wherein the second signal comprises a second peak within the passband, wherein a ratio of the first peak to the second peak is between 50 and 10,000.
1 more element
Dependencies are inferred from the claim text.