Bore hole scanner with position detecting device and light polar

Details Bore hole scanner with position detecting device and light polar Bore hole scanner with position detecting device and light polar

1988-10-28

1990-02-06

Smith, Jerry

Boots, shoes, and leggings

356241, G02B 2326

Patent

active

048992771

ABSTRACT:
A bore hole scanner includes a light projecting device for projecting a light beam toward a bore hole wall surface. A 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.

REFERENCES:
patent: 4305661 (1981-12-01), Pryor et al.
patent: 4317632 (1982-03-01), Orphan et al.
patent: 4779201 (1988-10-01), Iizuka et al.

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