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Title: Small diameter, deep bore optical inspection system

Abstract

An improved rod optic system for inspecting small diameter, deep bores. The system consists of a rod optic system utilizing a curved mirror at the end of the rod lens such that the optical path through the system is bent 90.degree. to minimize optical distortion in examining the sides of a curved bore. The system is particularly useful in the examination of small bores for corrosion, and is capable of examining 1/16 inch diameter and up to 4 inch deep drill holes, for example. The positioning of the curved mirror allows simultaneous viewing from shallow and right angle points of observation of the same artifact (such as corrosion) in the bore hole. The improved rod optic system may be used for direct eye sighting, or in combination with a still camera or a low-light television monitor; particularly low-light color television.

Inventors:
 [1];  [1];  [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863943
Patent Number(s):
4281929
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
diameter; deep; bore; optical; inspection; improved; rod; optic; inspecting; bores; consists; utilizing; curved; mirror; lens; path; bent; 90; degree; minimize; distortion; examining; particularly; useful; examination; corrosion; capable; 16; inch; drill; holes; example; positioning; allows; simultaneous; viewing; shallow; angle; observation; artifact; direct; eye; sighting; combination; camera; low-light; television; monitor; color; curved mirror; rod optic; particularly useful; optical path; optical inspection; optical distortion; television monitor; rod lens; improved rod; light color; /356/385/

Citation Formats

Lord, David E., Petrini, Richard R., and Carter, Gary W. Small diameter, deep bore optical inspection system. United States: N. p., 1981. Web.
Lord, David E., Petrini, Richard R., & Carter, Gary W. Small diameter, deep bore optical inspection system. United States.
Lord, David E., Petrini, Richard R., and Carter, Gary W. Thu . "Small diameter, deep bore optical inspection system". United States. https://www.osti.gov/servlets/purl/863943.
@article{osti_863943,
title = {Small diameter, deep bore optical inspection system},
author = {Lord, David E. and Petrini, Richard R. and Carter, Gary W.},
abstractNote = {An improved rod optic system for inspecting small diameter, deep bores. The system consists of a rod optic system utilizing a curved mirror at the end of the rod lens such that the optical path through the system is bent 90.degree. to minimize optical distortion in examining the sides of a curved bore. The system is particularly useful in the examination of small bores for corrosion, and is capable of examining 1/16 inch diameter and up to 4 inch deep drill holes, for example. The positioning of the curved mirror allows simultaneous viewing from shallow and right angle points of observation of the same artifact (such as corrosion) in the bore hole. The improved rod optic system may be used for direct eye sighting, or in combination with a still camera or a low-light television monitor; particularly low-light color television.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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