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Title: Automated interferometric alignment system for paraboloidal mirrors

Abstract

A method is described for a systematic method of interpreting interference fringes obtained by using a corner cube retroreflector as an alignment aid when aigning a paraboloid to a spherical wavefront. This is applicable to any general case where such alignment is required, but is specifically applicable in the case of aligning an autocollimating test using a diverging beam wavefront. In addition, the method provides information which can be systematically interpreted such that independent information about pitch, yaw and focus errors can be obtained. Thus, the system lends itself readily to automation. Finally, although the method is developed specifically for paraboloids, it can be seen to be applicable to a variety of other aspheric optics when applied in combination with a wavefront corrector that produces a wavefront which, when reflected from the correctly aligned aspheric surface will produce a collimated wavefront like that obtained from the paraboloid when it is correctly aligned to a spherical wavefront.

Inventors:
 [1]
  1. (Powell, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
868941
Patent Number(s):
5249033
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
automated; interferometric; alignment; paraboloidal; mirrors; method; described; systematic; interpreting; interference; fringes; obtained; corner; cube; retroreflector; aigning; paraboloid; spherical; wavefront; applicable; required; specifically; aligning; autocollimating; diverging; beam; addition; provides; information; systematically; interpreted; independent; pitch; yaw; focus; errors; lends; readily; automation; finally; developed; paraboloids; seen; variety; aspheric; optics; applied; combination; corrector; produces; reflected; correctly; aligned; surface; produce; collimated; spherical wave; method provides; provides information; method provide; aspheric surface; aspheric optics; beam wavefront; interference fringes; interference fringe; paraboloidal mirrors; paraboloidal mirror; corner cube; /356/

Citation Formats

Maxey, L. Curtis. Automated interferometric alignment system for paraboloidal mirrors. United States: N. p., 1993. Web.
Maxey, L. Curtis. Automated interferometric alignment system for paraboloidal mirrors. United States.
Maxey, L. Curtis. Fri . "Automated interferometric alignment system for paraboloidal mirrors". United States. https://www.osti.gov/servlets/purl/868941.
@article{osti_868941,
title = {Automated interferometric alignment system for paraboloidal mirrors},
author = {Maxey, L. Curtis},
abstractNote = {A method is described for a systematic method of interpreting interference fringes obtained by using a corner cube retroreflector as an alignment aid when aigning a paraboloid to a spherical wavefront. This is applicable to any general case where such alignment is required, but is specifically applicable in the case of aligning an autocollimating test using a diverging beam wavefront. In addition, the method provides information which can be systematically interpreted such that independent information about pitch, yaw and focus errors can be obtained. Thus, the system lends itself readily to automation. Finally, although the method is developed specifically for paraboloids, it can be seen to be applicable to a variety of other aspheric optics when applied in combination with a wavefront corrector that produces a wavefront which, when reflected from the correctly aligned aspheric surface will produce a collimated wavefront like that obtained from the paraboloid when it is correctly aligned to a spherical wavefront.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

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