Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses
Abstract
To measure a convex mirror, a reference beam and a measurement beam are both provided through a single optical fiber. A positive auxiliary lens is placed in the system to give a converging wavefront onto the convex mirror under test. A measurement is taken that includes the aberrations of the convex mirror as well as the errors due to two transmissions through the positive auxiliary lens. A second, measurement provides the information to eliminate this error. A negative lens can also be measured in a similar way. Again, there are two measurement set-ups. A reference beam is provided from a first optical fiber and a measurement beam is provided from a second optical fiber. A positive auxiliary lens is placed in the system to provide a converging wavefront from the reference beam onto the negative lens under test. The measurement beam is combined with the reference wavefront and is analyzed by standard methods. This measurement includes the aberrations of the negative lens, as well as the errors due to a single transmission through the positive auxiliary lens. A second measurement provides the information to eliminate this error.
- Inventors:
- Issue Date:
- Research Org.:
- The Regents Of University Of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174759
- Patent Number(s):
- 6704112
- Application Number:
- 09/690,935
- Assignee:
- University Of California, The Regents Of
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Sommargren, Gary E., and Campbell, Eugene W. Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses. United States: N. p., 2004.
Web.
Sommargren, Gary E., & Campbell, Eugene W. Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses. United States.
Sommargren, Gary E., and Campbell, Eugene W. Tue .
"Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses". United States. https://www.osti.gov/servlets/purl/1174759.
@article{osti_1174759,
title = {Application of the phase shifting diffraction interferometer for measuring convex mirrors and negative lenses},
author = {Sommargren, Gary E. and Campbell, Eugene W.},
abstractNote = {To measure a convex mirror, a reference beam and a measurement beam are both provided through a single optical fiber. A positive auxiliary lens is placed in the system to give a converging wavefront onto the convex mirror under test. A measurement is taken that includes the aberrations of the convex mirror as well as the errors due to two transmissions through the positive auxiliary lens. A second, measurement provides the information to eliminate this error. A negative lens can also be measured in a similar way. Again, there are two measurement set-ups. A reference beam is provided from a first optical fiber and a measurement beam is provided from a second optical fiber. A positive auxiliary lens is placed in the system to provide a converging wavefront from the reference beam onto the negative lens under test. The measurement beam is combined with the reference wavefront and is analyzed by standard methods. This measurement includes the aberrations of the negative lens, as well as the errors due to a single transmission through the positive auxiliary lens. A second measurement provides the information to eliminate this error.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 09 00:00:00 EST 2004},
month = {Tue Mar 09 00:00:00 EST 2004}
}