Window obscuration sensors for mobile gas and chemical imaging cameras

Patent · 24 November 2020

OSTI ID:1771661

Mallery, Ryan; Balila, Ohad Israel; Kester, Robert Timothy

An infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including a focal plane array (FPA) unit behind an optical window. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. One or more of the optical channels may be used in detecting objects on or near the optical window, to avoid false detections of said target species.

• Research Organization: Rebellion Photonics, Inc., Houston, TX (United States)
• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: AR0000541
• Assignee: Rebellion Photonics, Inc. (Houston, TX)
• Patent Number(s): 10,845,302
• Application Number: 16/664,615
• OSTI ID: 1771661
• Country of Publication: United States
• Language: English