Precision focal-length measurement using imaging conjugates

Lin Yao Liao; F. C.Bráulio De Albuquerque; Robert E. Parks; José M. Sasian

doi:10.1117/1.OE.51.11.113604

Precision focal-length measurement using imaging conjugates

Lin Yao Liao, F. C.Bráulio De Albuquerque, Robert E. Parks, José M. Sasian

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

A method for effective focal length measurement using imaging conjugates is discussed and demonstrated. This method is used to determine the effective focal length of an objective lens with precision and without the need to know the exact position of the principal planes by measuring relative distances of imaging conjugates. Focal length determination was done with the aid of an interferometer and with a precision of ±0.054%. A discussion of the method is presented and an error analysis discussed. This method can be used for characterizing optical systems with a wide range of focal lengths because of its simple experimental configuration.

Original language	English (US)
Article number	113604
Journal	Optical Engineering
Volume	51
Issue number	11
DOIs	https://doi.org/10.1117/1.OE.51.11.113604
State	Published - Nov 2012

Keywords

Effective focal length
Focal length
Focal length measurement
Interferometer
Nodal slide

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Engineering

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10.1117/1.OE.51.11.113604

Cite this

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title = "Precision focal-length measurement using imaging conjugates",

abstract = "A method for effective focal length measurement using imaging conjugates is discussed and demonstrated. This method is used to determine the effective focal length of an objective lens with precision and without the need to know the exact position of the principal planes by measuring relative distances of imaging conjugates. Focal length determination was done with the aid of an interferometer and with a precision of ±0.054%. A discussion of the method is presented and an error analysis discussed. This method can be used for characterizing optical systems with a wide range of focal lengths because of its simple experimental configuration.",

keywords = "Effective focal length, Focal length, Focal length measurement, Interferometer, Nodal slide",

author = "Liao, {Lin Yao} and {De Albuquerque}, {F. C.Br{\'a}ulio} and Parks, {Robert E.} and Sasian, {Jos{\'e} M.}",

note = "Funding Information: We would like to express Prof. Yi-Pai Huang of National Chiao-Tung University, Department of Photonics and Display Institute, Taiwan, and National Science Council (No. NSC-101-2221-E-009-120-MY3), Taiwan, for the technical and financial support.",

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doi = "10.1117/1.OE.51.11.113604",

language = "English (US)",

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AU - Liao, Lin Yao

AU - De Albuquerque, F. C.Bráulio

AU - Parks, Robert E.

AU - Sasian, José M.

N1 - Funding Information: We would like to express Prof. Yi-Pai Huang of National Chiao-Tung University, Department of Photonics and Display Institute, Taiwan, and National Science Council (No. NSC-101-2221-E-009-120-MY3), Taiwan, for the technical and financial support.

PY - 2012/11

Y1 - 2012/11

N2 - A method for effective focal length measurement using imaging conjugates is discussed and demonstrated. This method is used to determine the effective focal length of an objective lens with precision and without the need to know the exact position of the principal planes by measuring relative distances of imaging conjugates. Focal length determination was done with the aid of an interferometer and with a precision of ±0.054%. A discussion of the method is presented and an error analysis discussed. This method can be used for characterizing optical systems with a wide range of focal lengths because of its simple experimental configuration.

AB - A method for effective focal length measurement using imaging conjugates is discussed and demonstrated. This method is used to determine the effective focal length of an objective lens with precision and without the need to know the exact position of the principal planes by measuring relative distances of imaging conjugates. Focal length determination was done with the aid of an interferometer and with a precision of ±0.054%. A discussion of the method is presented and an error analysis discussed. This method can be used for characterizing optical systems with a wide range of focal lengths because of its simple experimental configuration.

KW - Effective focal length

KW - Focal length

KW - Focal length measurement

KW - Interferometer

KW - Nodal slide

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Precision focal-length measurement using imaging conjugates

Abstract

Keywords

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