ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,870, issued on Aug. 5, was assigned to DarkVision Technologies Inc. (North Vancouver, Canada).
"Advanced optical imaging of tubulars" was invented by Timothy Luu (North Vancouver, Canada), Graham Manders (North Vancouver, Canada) and Damian Nesbitt (Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device and method used to inspect wellbores, cased or uncased using cameras. Improvements in downhole optical imaging are provided using telecentric lens, prisms and mirrors, or structured lighting. Stereoscopic arrangements and ultrasound sensor may provide 3D or contour information. The images are stored on the tool and analyzed later. T...