1λ Ronchi tester to obtain the wave front aberration in converging optical systems using phase shifting interferometry

J. Sánchez-Paredes, G. Silva-Ortigoza, J. Castro-Ramos, Jose M Sasian

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We implement a device to verify in a quantitative way the quality of any converging optical system by making an improvement to the source illumination of the Ronchi test and by implementing the phase shifting interferometry technique (PSI). We describe the design, implementation and verification of this specific device which has the capability to obtain the transversal aberration in two perpendicular directions. Illumination source was a set of LEDs powered with constant current to eliminate variations in the irradiance collected by the camera (CCD), and varying the voltage to increase the intensity of each different wavelength LED we test surfaces with different roughness. The PSI technique was developed by giving movements to the Ronchi ruling with step motors. The device has the capability to test any converging optical systems of either small or large f numbers, and working distances until 5000 mm. Aberrated wavefront with a precision of 1λ was computed when the light source is off axis for any rotationally symmetric mirror.

Original languageEnglish (US)
Pages (from-to)461-473
Number of pages13
JournalOptica Pura y Aplicada
Volume45
Issue number4
DOIs
StatePublished - 2012

Fingerprint

wave fronts
test equipment
Aberrations
Interferometry
Optical systems
Light emitting diodes
Light sources
aberration
interferometry
Lighting
Stepping motors
Ronchi test
light emitting diodes
Wavefronts
CCD cameras
illumination
Mirrors
Surface roughness
irradiance
Wavelength

Keywords

  • Phase shifting
  • Ronchi tester
  • Sensitivity

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Mechanical Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

1λ Ronchi tester to obtain the wave front aberration in converging optical systems using phase shifting interferometry. / Sánchez-Paredes, J.; Silva-Ortigoza, G.; Castro-Ramos, J.; Sasian, Jose M.

In: Optica Pura y Aplicada, Vol. 45, No. 4, 2012, p. 461-473.

Research output: Contribution to journalArticle

Sánchez-Paredes, J. ; Silva-Ortigoza, G. ; Castro-Ramos, J. ; Sasian, Jose M. / 1λ Ronchi tester to obtain the wave front aberration in converging optical systems using phase shifting interferometry. In: Optica Pura y Aplicada. 2012 ; Vol. 45, No. 4. pp. 461-473.
@article{a0812f04b9e94dda9b11fa09b85d4d93,
title = "1λ Ronchi tester to obtain the wave front aberration in converging optical systems using phase shifting interferometry",
abstract = "We implement a device to verify in a quantitative way the quality of any converging optical system by making an improvement to the source illumination of the Ronchi test and by implementing the phase shifting interferometry technique (PSI). We describe the design, implementation and verification of this specific device which has the capability to obtain the transversal aberration in two perpendicular directions. Illumination source was a set of LEDs powered with constant current to eliminate variations in the irradiance collected by the camera (CCD), and varying the voltage to increase the intensity of each different wavelength LED we test surfaces with different roughness. The PSI technique was developed by giving movements to the Ronchi ruling with step motors. The device has the capability to test any converging optical systems of either small or large f numbers, and working distances until 5000 mm. Aberrated wavefront with a precision of 1λ was computed when the light source is off axis for any rotationally symmetric mirror.",
keywords = "Phase shifting, Ronchi tester, Sensitivity",
author = "J. S{\'a}nchez-Paredes and G. Silva-Ortigoza and J. Castro-Ramos and Sasian, {Jose M}",
year = "2012",
doi = "10.7149/OPA.45.4.461",
language = "English (US)",
volume = "45",
pages = "461--473",
journal = "Optica Pura y Aplicada",
issn = "0030-3917",
publisher = "Sociedad Espanola de Optica",
number = "4",

}

TY - JOUR

T1 - 1λ Ronchi tester to obtain the wave front aberration in converging optical systems using phase shifting interferometry

AU - Sánchez-Paredes, J.

AU - Silva-Ortigoza, G.

AU - Castro-Ramos, J.

AU - Sasian, Jose M

PY - 2012

Y1 - 2012

N2 - We implement a device to verify in a quantitative way the quality of any converging optical system by making an improvement to the source illumination of the Ronchi test and by implementing the phase shifting interferometry technique (PSI). We describe the design, implementation and verification of this specific device which has the capability to obtain the transversal aberration in two perpendicular directions. Illumination source was a set of LEDs powered with constant current to eliminate variations in the irradiance collected by the camera (CCD), and varying the voltage to increase the intensity of each different wavelength LED we test surfaces with different roughness. The PSI technique was developed by giving movements to the Ronchi ruling with step motors. The device has the capability to test any converging optical systems of either small or large f numbers, and working distances until 5000 mm. Aberrated wavefront with a precision of 1λ was computed when the light source is off axis for any rotationally symmetric mirror.

AB - We implement a device to verify in a quantitative way the quality of any converging optical system by making an improvement to the source illumination of the Ronchi test and by implementing the phase shifting interferometry technique (PSI). We describe the design, implementation and verification of this specific device which has the capability to obtain the transversal aberration in two perpendicular directions. Illumination source was a set of LEDs powered with constant current to eliminate variations in the irradiance collected by the camera (CCD), and varying the voltage to increase the intensity of each different wavelength LED we test surfaces with different roughness. The PSI technique was developed by giving movements to the Ronchi ruling with step motors. The device has the capability to test any converging optical systems of either small or large f numbers, and working distances until 5000 mm. Aberrated wavefront with a precision of 1λ was computed when the light source is off axis for any rotationally symmetric mirror.

KW - Phase shifting

KW - Ronchi tester

KW - Sensitivity

UR - http://www.scopus.com/inward/record.url?scp=84877668115&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877668115&partnerID=8YFLogxK

U2 - 10.7149/OPA.45.4.461

DO - 10.7149/OPA.45.4.461

M3 - Article

VL - 45

SP - 461

EP - 473

JO - Optica Pura y Aplicada

JF - Optica Pura y Aplicada

SN - 0030-3917

IS - 4

ER -