E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
73/51.4
E21B 47/02 (2006.01) E21B 47/00 (2006.01)
Patent
CA 1319527
ABSTRACT OF THE DISCLOSURE A bore hold scanner includes a light projecting device for projecting a light beam toward a bore hole wall surface. conical mirror is arranged coaxially with respect to a sonde for condensing light reflected from the bore hole wall surface. An image forming device is arranged in front of the conical mirror. A photoelectric transducing device converts a light signal into an electric signal. Optical fibers introduce an image, which is formed on concentric circles by the image forming device, to the photoelectric transducing device. A data processing device scans and extracts signals from the photoelectric transducing device, and generates and processes image data indicative of the bore hole wall surface. A sonde position detecting device detects the orientation and position of the sonde. Rotating portions are dispensed with by using the conical mirror and optical fibers, and a linear CCD array can be used as the photoelectric transducing device.
581470
Iizuka Yunosuke
Ishii Takashi
Matsumoto Yoshitaka
Mukawa Yoshihiro
Murakami Osamu
Cassan Maclean
Core Inc.
Shimizu Construction Co. Ltd.
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