Apparatus and methods for imaging interior surfaces of a tube or the like
Abstract
An exemplary device includes, on a longitudinal axis, an illumination-light source, an axicon (conic) mirror, an image sensor, and a tilted optical element. The light source provides illumination light propagating forwardly on the axis. The axicon mirror reflects the illumination light radially outward, relative to the axis, to the interior surface of a tube to produce reflected light propagating, from the illuminated interior surface, as imaging light back to the axicon, which reflects the imaging light rearwardly. The image sensor receives at least a portion of the imaging light rearwardly reflected by the axicon mirror. The tilted optical element, situated between the axicon mirror and the interior surface, moves a selected first portion of the imaging light away from being incident on the image sensor, while allowing a second portion of the imaging light to be incident on the image sensor.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1459554
- Patent Number(s):
- 10009526
- Application Number:
- 14/180,062
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2014 Feb 13
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Kisner, Roger A., McIntyre, Timothy J., and Paquit, Vincent C. Apparatus and methods for imaging interior surfaces of a tube or the like. United States: N. p., 2018.
Web.
Kisner, Roger A., McIntyre, Timothy J., & Paquit, Vincent C. Apparatus and methods for imaging interior surfaces of a tube or the like. United States.
Kisner, Roger A., McIntyre, Timothy J., and Paquit, Vincent C. Tue .
"Apparatus and methods for imaging interior surfaces of a tube or the like". United States. https://www.osti.gov/servlets/purl/1459554.
@article{osti_1459554,
title = {Apparatus and methods for imaging interior surfaces of a tube or the like},
author = {Kisner, Roger A. and McIntyre, Timothy J. and Paquit, Vincent C.},
abstractNote = {An exemplary device includes, on a longitudinal axis, an illumination-light source, an axicon (conic) mirror, an image sensor, and a tilted optical element. The light source provides illumination light propagating forwardly on the axis. The axicon mirror reflects the illumination light radially outward, relative to the axis, to the interior surface of a tube to produce reflected light propagating, from the illuminated interior surface, as imaging light back to the axicon, which reflects the imaging light rearwardly. The image sensor receives at least a portion of the imaging light rearwardly reflected by the axicon mirror. The tilted optical element, situated between the axicon mirror and the interior surface, moves a selected first portion of the imaging light away from being incident on the image sensor, while allowing a second portion of the imaging light to be incident on the image sensor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 26 00:00:00 EDT 2018},
month = {Tue Jun 26 00:00:00 EDT 2018}
}
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