Gas imaging systems and methods

US11635370B2 · kind B2 · utility

Assignee

• FLIR Systems AB · SE

Inventors

• Hakan E. Nygren · Upplands Väsby, SE
• Jonas Sandsten · Lomma, SE
• Per Lilja · Åkersberga, SE
• Marta Barenthin-Syberg · Stockholm, SE
• Henning Hagman · Täby, SE
• Eric A. Kurth · Lompoc, US
• Brian B. Simolon · Lompoc, US
• Naseem Y. Aziz · Goleta, US
• Ulf Wallgren · Lidingö, SE

Key dates

• Filing date: Sep 27, 2019
• Grant date: Apr 25, 2023
• Expiry date: May 10, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/20224
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An IR imaging device includes an optical element receiving infrared radiation from a scene, a filter blocking IR radiation outside of a particular range of wavelengths, an array of sensor pixels to capture an image of the scene based on infrared radiation received through the optical element and filter, the array of sensor pixels comprising a first array of sensor pixels to image gas in within a first spectral bandwidth, and a second array of sensor pixel to sense IR radiation in a second spectral bandwidth where gas is not detected, a read-out integrated circuit (ROIC) and logic circuitry to generate a first image sensed by the first array and a second image sensed by the second array, and gas detection logic to detect the presence of gas in the first image.