Dr. Alejandro Cornejo-Rodríguez Profile

Dr. Alejandro Cornejo-Rodríguez

Researcher & Sales Rep. at Instituto Nacional de Astrofísica, Óptica y Electrónica

SPIE Involvement:

Author

Publications (65)

Proceedings Article | 10 August 2023 Poster + Paper

Poster + Paper

Simple method for evaluating plano-convex aspherical lenses

Oliver Huerta-Carranza, Manuel Campos-García, Fermín Granados-Agustín, Agustín Santiago-Alvarado, Alejandro Cornejo Rodríguez, Maximino Avendaño-Alejo

Proceedings Volume 12619, 126190W (2023) https://doi.org/10.1117/12.2673851

KEYWORDS: Optical surfaces, Design and modelling, Refraction, LCDs, Aspheric lenses, Ray tracing, Numerical simulations, Reconstruction algorithms, Displays, Refractive index

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SPIE Journal Paper | 27 October 2022

Testing concave optical surface by Shack–Hartmann test using microholes

Alberto Jaramillo-Núñez, Efren Santamaria Juarez, Javier Muñoz-López, Alejandro Cornejo Cornejo-Rodríguez

OE, Vol. 61, Issue 10, 104104, (October 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.10.104104

KEYWORDS: Optical testing, Ronchi rulings, Lenses, Light sources, Picosecond phenomena, Wavefronts, Optical engineering, Wavefront sensors, Near field diffraction, Spherical lenses

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Proceedings Article | 12 September 2021 Poster + Presentation + Paper

Poster + Presentation + Paper

Optical design of a head-mounted display (HMD) using an off-axis three-mirror system (OTS) and freeform surfaces

Jorge Alvarado-Martínez, Fermín Granados-Agustín, Sergio Vázquez-y Montiel, Alejandro Cornejo-Rodríguez

Proceedings Volume 11871, 1187117 (2021) https://doi.org/10.1117/12.2597167

KEYWORDS: Head-mounted displays, Virtual reality, Optical design, Augmented reality, Imaging systems, Reflectivity

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SPIE Journal Paper | 1 April 2021

HyDRa: discrete polishing

Erika Sohn, Elfego Ruiz, Luis Salas, Esteban Luna, Alejandro Cornejo-Rodríguez

OE, Vol. 60, Issue 04, 044101, (April 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.4.044101

KEYWORDS: Polishing, Surface finishing, Raster graphics, Optical engineering, Switching, Switches, Interfaces, Abrasives, Pulsed laser operation, Modulation

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SPIE Journal Paper | 25 February 2021

Optical design of a compact and anastigmatic off-axis three-mirror system using freeform surfaces

Jorge Alvarado-Martínez, Fermín-Salomón Granados-Agustín, Sergio Vázquez-Montiel, Alexis Vázquez-Villa, Alejandro Cornejo-Rodríguez

OE, Vol. 60, Issue 05, 051209, (February 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.051209

KEYWORDS: Mirrors, Optical design, Monochromatic aberrations, Optical components, Optical engineering, Spherical lenses, Modulation transfer functions, Imaging systems, Optical alignment, Zemax

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Proceedings Article | 21 August 2020 Poster + Paper

Poster + Paper

Design of an anastigmatic three-mirror telescope using freeform surfaces

J. Alvarado-Martínez, F. Granados-Agustín, S. Vázquez-y Montiel, A. Cornejo-Rodríguez

Proceedings Volume 11482, 114820V (2020) https://doi.org/10.1117/12.2568617

KEYWORDS: Monochromatic aberrations, Mirrors, Optical instrument design, Telescopes, Optical components, Optical design, Optimization (mathematics), Modulation transfer functions, Freeform optics

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Proceedings Article | 21 June 2019 Paper

Paper

Measurement of errors by axial misalignment and tilt of the null screen used in experimental arrangements by deflectometry

Diana Castán-Ricaño, Fermín Granados-Agustín, Andrea Muñoz-Potosi, Gabriel Valdivieso-González, Elizabeth Percino-Zacarías, Maximino Avendaño-Alejo, Alejandro Cornejo-Rodríguez

Proceedings Volume 11057, 110571S (2019) https://doi.org/10.1117/12.2530400

KEYWORDS: Wavefronts, Zernike polynomials, Deflectometry, Photography, Aspheric lenses, Cameras, Spherical lenses, Image processing, Numerical simulations, Refraction

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Proceedings Article | 21 June 2019 Paper

Paper

Design of a two-mirror telescope using a free-form surface for the primary mirror

J. J. Alvarado-Martínez, F. S. Granados-Agustín, S. Vázquez-Montiel, M. E. Percino-Zacarías, A. Cornejo-Rodríguez

Proceedings Volume 11057, 110571T (2019) https://doi.org/10.1117/12.2534326

KEYWORDS: Freeform optics, Mirrors, Telescopes, Optical instrument design, Ray tracing, Monochromatic aberrations, Optics manufacturing, Geometrical optics, Optical design

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Proceedings Article | 21 June 2019 Paper

Paper

Interferometric measurement of local radii of curvature for aspheric surface using a PDI

María Elizabeth Percino-Zacarías, Fermín Salomón Granados-Agustin, Daniel Aguirre-Aguirre, Brenda Villalobos-Mendoza, Alejandro Cornejo-Rodriguez

Proceedings Volume 11056, 110561O (2019) https://doi.org/10.1117/12.2527556

KEYWORDS: Wavefronts, Aspheric lenses, Interferometry, Interferometers, Spherical lenses, Point diffraction interferometers, Cadmium, Distance measurement, Manufacturing, Light sources

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Proceedings Article | 19 September 2018 Presentation + Paper

Presentation + Paper

New technique of segments alignment in a large dimensions mirror

Fermín Granados-Agustín, María Percino-Zacarías, Sergio Vázquez y Montiel, Alejandro Cornejo-Rodríguez

Proceedings Volume 10747, 1074705 (2018) https://doi.org/10.1117/12.2320802

KEYWORDS: Mirrors, Telescopes, Image segmentation, James Webb Space Telescope, Sensors, Segmented mirrors, Optical alignment, Large telescopes, Sun, Diffraction

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Proceedings Article | 14 September 2018 Paper

Paper

Characterization of the microlithography and mercury drop methods to generate PDI's

J. A. Zenteno-Hernández, F. S. Granados-Agustín, D. Aguirre-Aguirre, B. Villalobos-Mendoza, M. E. Percino-Zacarías, P. Rosales-Quintero, A. Cornejo-Rodriguez

Proceedings Volume 10742, 107421E (2018) https://doi.org/10.1117/12.2320812

KEYWORDS: Mercury, Optical lithography, Aluminum, Fringe analysis, Wavefronts, Spherical lenses, Image processing, Thin films, Point diffraction interferometers, Deposition processes

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Proceedings Article | 14 September 2018 Presentation + Paper

Presentation + Paper

Characterization of an aspherical surface with null screens using exact ray tracing

Diana Castán-Ricaño, Fermín Granados-Agustín, Maximino Avendaño-Alejo, Elizabeth Percino-Zacarías, Alejandro Cornejo-Rodríguez

Proceedings Volume 10742, 107420Z (2018) https://doi.org/10.1117/12.2320782

KEYWORDS: Ray tracing, Refraction, Aspheric lenses, Deflectometry, Wavefronts, Cameras, Photography, Image processing, Geometrical optics, Numerical simulations

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Proceedings Article | 14 September 2018 Presentation + Paper

Presentation + Paper

Characterization of a transmissive spatial light modulator using four different wavelengths

Nayeli Perez-Esquivel, Fermín S. Granados-Agustín, Brenda Villalobos-Mendoza, Daniel Aguirre-Aguirre, Elizabeth Percino-Zacarías, Alejandro Cornejo-Rodríguez

Proceedings Volume 10742, 1074214 (2018) https://doi.org/10.1117/12.2320758

KEYWORDS: Spatial light modulators, Polarization, Polarizers, Modulators, Elliptical polarization, Sensors, Laser stabilization, Cadmium, Adaptive optics, Liquid crystals

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Proceedings Article | 18 August 2018 Paper

Paper

Analysis of the local defects of a concave spherical surface using three measurement techniques

B. Canales-Pacheco, Noel Ivan Toto Arellano, León Felipe Austria-González, Raymundo Sergio Noriega-Loredo, A. Cornejo-Rodríguez

Proceedings Volume 10749, 1074919 (2018) https://doi.org/10.1117/12.2320668

KEYWORDS: Spherical lenses, Mirrors, Interferometers, Software, Interferometry, Reflectivity, Optical testing, Metals, Fizeau interferometers, Geometrical optics

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Proceedings Article | 26 June 2017 Paper

Paper

Increase in the measurement of the normal vectors of an aspherical surface used in deflectometry

Diana Castán-Ricaño, Fermín Granados-Agustín, E. Percino-Zacarías, A. Cornejo-Rodríguez

Proceedings Volume 10330, 103301W (2017) https://doi.org/10.1117/12.2271872

KEYWORDS: LCDs, Deflectometry, Wavefronts, Aspheric lenses, Sensors, Optical metrology, Systems modeling, Modeling, Precision measurement, Geometrical optics, Ray tracing, Spherical lenses, Refraction, Numerical simulations, Reflection, Software, Monochromatic aberrations

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Proceedings Article | 27 July 2016 Paper

Paper

Simulation of the wavefront sensing of the active primary mirror system for the 2.1-m telescope of the SPMO

José Araiza-Durán, Esteban Luna, Alejandro Cornejo

Proceedings Volume 9906, 99063Z (2016) https://doi.org/10.1117/12.2233803

KEYWORDS: Telescopes, Device simulation, Mirrors, Active remote sensing, Reconstruction algorithms, Actuators, Active remote sensing, Sensing systems, Wavefront sensors, Monochromatic aberrations, Atmospheric propagation

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SPIE Journal Paper | 21 November 2014

Substructured Ronchi gratings from the linear combination of classical gratings

Daniel Aguirre-Aguirre, Brenda Villalobos-Mendoza, Fermin Granados Agustin, Rafael Izazaga-Pérez, Manuel Campos-García, María-Elizabeth Percino-Zacarías, Alejandro Cornejo-Rodríguez

OE, Vol. 53, Issue 11, 114111, (November 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.11.114111

KEYWORDS: Ronchi rulings, Wavefronts, Mirrors, Spatial light modulators, Spatial resolution, Optical engineering, Opacity, Monochromatic aberrations, Optical testing, Light sources

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Proceedings Article | 22 July 2014 Paper

Paper

Wavefront coding applied to a two-mirror telescope

Jose Araiza-Duran, Esteban Luna, Alejandro Cornejo, Joel Herrera

Proceedings Volume 9145, 91453N (2014) https://doi.org/10.1117/12.2055355

KEYWORDS: Telescopes, Imaging systems, Mirrors, Modulation transfer functions, Digital image processing, Optical instrument design, Wavefronts, Image processing, Image compression, Spherical lenses

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SPIE Journal Paper | 13 May 2014

Knife edge interferometer, part I: with collimated beam

Pedro Cebrian Xochihuila, Nikolai Zabello, Fermin Granados-Agustín, Jose Rufino Díaz-Uribe, Alejandro Cornejo-Rodríguez

OE, Vol. 53, Issue 09, 092006, (May 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.9.092006

KEYWORDS: Interferometers, Monochromatic aberrations, Collimation, Wavefronts, Optical testing, Spherical lenses, Optical engineering, Analytical research, Interferometry, Helium neon lasers

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Proceedings Article | 18 November 2013 Paper

Paper

A review on self-reference wavefront methods in optical testing

Alejandro Cornejo-Rodríguez, Fermín Granados-Agustín

Proceedings Volume 8785, 8785G2 (2013) https://doi.org/10.1117/12.2021752

KEYWORDS: Interferometers, Wavefronts, Optical testing, Scattering, Laser scattering, Shearing interferometers, Mirrors, Optical components, Ronchi rulings, Point diffraction interferometers

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Proceedings Article | 18 November 2013 Paper

Paper

New method for sub-structured Ronchi rulings generation and his irradiance profile

D. Aguirre-Aguirre, F. Granados-Agustín, B. Villalobos-Mendoza, R. Izazaga-Pérez, M. Campos-García, A. Cornejo-Rodríguez

Proceedings Volume 8785, 87857Y (2013) https://doi.org/10.1117/12.2026434

KEYWORDS: Ronchi rulings, Spherical lenses, Wavefronts, LCDs, Spatial resolution, Opacity, Laser optics, Reflection, Optical testing, Error analysis

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Proceedings Article | 18 November 2013 Paper

Paper

Liquid crystal display for phase shifting

B. Villalobos-Mendoza, F. Granados-Agustín, D. Aguirre-Aguirre, A. Cornejo-Rodríguez

Proceedings Volume 8785, 878581 (2013) https://doi.org/10.1117/12.2026442

KEYWORDS: LCDs, Phase shifts, Phase shifting, Interferometers, Michelson interferometers, Mirrors, Optical testing, Helium neon lasers, Polarization

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Proceedings Article | 18 November 2013 Paper

Paper

Numerical evaluation of the intensity transport equation for well-known wavefronts and intensity distributions

Manuel Campos-García, Fermín Granados-Agustín, Alejandro Cornejo-Rodríguez, Amilcar Estrada-Molina, Maximino Avendaño-Alejo, Víctor Iván Moreno-Oliva

Proceedings Volume 8785, 878575 (2013) https://doi.org/10.1117/12.2026320

KEYWORDS: Wavefronts, Light wave propagation, Computer simulations, Radio propagation, Beam propagation method, Numerical analysis, Geometrical optics, Wave propagation, Phase retrieval, Sensors

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SPIE Journal Paper | 24 May 2013

Algorithm for Ronchigram recovery with random aberrations coefficients

Daniel Aguirre-Aguirre, Rafael Izazaga-Pérez, Fermin Granados-Agustin, Brenda Villalobos-Mendoza, Maria Percino-Zacarias, Alejandro Cornejo-Rodriguez

OE, Vol. 52, Issue 05, 053606, (May 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.5.053606

KEYWORDS: Monochromatic aberrations, Error analysis, Wavefronts, Spherical lenses, Ronchi rulings, Optical engineering, Genetic algorithms, Surface finishing, Diffraction, Mirrors

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Proceedings Article | 25 September 2012 Paper

Paper

Point diffraction interferometer for measurement of the refraction index of a glass plate

E. Rueda-Soriano, F. S. Granados-Agustín, A. Cornejo-Rodríguez, Elizabeth Percino-Zacarías, P. Cebrian-Xochihuila, B. Canales Pacheco

Proceedings Volume 8494, 84940J (2012) https://doi.org/10.1117/12.928889

KEYWORDS: Glasses, Refractive index, Point diffraction interferometers, Wavefronts, Helium neon lasers, Spatial filters, Refraction, Interferometers, CCD cameras, Calibration

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Proceedings Article | 13 September 2012 Paper

Paper

Interferometer inspection of local defect type Young-Chalmers

Benito Canales-Pacheco, Alejandro Cornejo-Rodriguez, Fermín Granados-Agustin, Esteban Rueda-Soriano, Pedro Cebrian-Xochihuila

Proceedings Volume 8494, 84940O (2012) https://doi.org/10.1117/12.930049

KEYWORDS: Interferometers, Interferometry, Light sources, Reflectivity, Defect inspection, Inspection, CCD cameras, Spatial light modulators, Optical testing, Spherical lenses

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Proceedings Article | 12 September 2012 Paper

Paper

Accuracy of the ReRRCA algorithm using the Ronchi test

D. Aguirre-Aguirre, F. Granados-Agustín, B. Villalobos-Mendoza, M. Percino-Zacarías, A. Cornejo-Rodríguez

Proceedings Volume 8445, 84452B (2012) https://doi.org/10.1117/12.927232

KEYWORDS: Mirrors, Ronchi rulings, Wavefronts, Spherical lenses, Monochromatic aberrations, Error analysis, Genetic algorithms, Interferometry, Image analysis, Interferometers

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Proceedings Article | 3 November 2011 Paper

Paper

Xochicalco: Tlayohualchieliztli or camera obscura

A. Cornejo-Rodríguez, S. Vázquez-Montiel, F. Granados-Agustín, D. Gale, R. Diamant, R. Espinasa-Perena, J. Cruz, M. Fernández-Guasti

Proceedings Volume 8011, 80119O (2011) https://doi.org/10.1117/12.903281

KEYWORDS: Cameras, Barium, Astronomy, Current controlled current source, Sun

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Proceedings Article | 3 November 2011 Paper

Paper

Influence of the mechanical stress and heat parameters into the transmittance function of the integrals of the diffraction phenomena

Esteban Andrés-Zárate, Alejandro Cornejo-Rodríguez

Proceedings Volume 8011, 801169 (2011) https://doi.org/10.1117/12.903131

KEYWORDS: Diffraction, Transmittance, Convolution, Fourier transforms, Ferroelectric LCDs, Helium neon lasers, Spatial filters, Collimators, Atrial fibrillation, Optical filters

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Proceedings Article | 3 November 2011 Paper

Paper

Analysis of interferograms of a lens using a knife edge interferometer

Nikolai Korneev, F. S. Granados-Agustín, P. Cebrian Xochihuila, R. Díaz Uribe, A. Cornejo Rodríguez

Proceedings Volume 8011, 80111S (2011) https://doi.org/10.1117/12.903323

KEYWORDS: Wavefronts, Interferometers, Optical testing, Distance measurement, Charge-coupled devices, Helium neon lasers, Spatial filters, Interferometry, Light, Geometrical optics

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Proceedings Article | 25 October 2011 Paper

Paper

Obtaining the wavefront in the Ronchi test using only one Ronchigram with random coefficients of aberration

D. Aguirre-Aguirre, F. S. Granados-Agustín, A. Cornejo-Rodríguez

Proceedings Volume 8011, 801117 (2011) https://doi.org/10.1117/12.902606

KEYWORDS: Wavefronts, Ronchi rulings, Monochromatic aberrations, Spherical lenses, Image analysis, Interferometers, Error analysis, Image restoration, Computer simulations, Interferometry

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Proceedings Article | 25 October 2011 Paper

Paper

Wavefront determination using the Ronchi test with synthetic wavelength

A. García-Arellano, F. S. Granados-Agustín, A. Cornejo-Rodriguez

Proceedings Volume 8011, 80111D (2011) https://doi.org/10.1117/12.902846

KEYWORDS: Ronchi rulings, Wavefronts, LCDs, Light emitting diodes, Infrared radiation, Monochromatic aberrations, Zernike polynomials, Optical testing, Spatial light modulators, Mirrors

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Proceedings Article | 23 May 2011 Paper

Paper

Ronchigram analysis based on effective wavelength techniques and wavefront slope

F. Granados-Agustin, A. Garcia-Arellano, D. Aguirre-Aguirre, M. Campos-Garcia, A. Cornejo-Rodriguez

Proceedings Volume 8083, 80830R (2011) https://doi.org/10.1117/12.889551

KEYWORDS: Wavefronts, Ronchi rulings, Interferometry, Image processing, LCDs, Mirrors, Diffraction, CCD cameras, Zernike polynomials, Sensors

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Proceedings Article | 18 February 2010 Paper

Paper

Ronchi test with equivalent wavelength

Anmi García-A., Fermín Solomon Granados-A., Alejandro Cornejo-R.

Proceedings Volume 7584, 758418 (2010) https://doi.org/10.1117/12.846932

KEYWORDS: Ronchi rulings, LCDs, Mirrors, Interferometry, Spherical lenses, Chromatic aberrations, Interferometers, Image processing, Radon, Data processing

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SPIE Journal Paper | 1 January 2009

Ronchi test with variable-frequency rulings

Javier Salinas-Luna, FermIn-Solomon Granados-AgustIn, Alejandro Cornejo Rodriguez, Esteban Luna-Aguilar, Juan Sanchez-Escobar, Juan Hernández-Cid

OE, Vol. 48, Issue 01, 013604, (January 2009) https://doi.org/10.1117/12.10.1117/1.3072956

KEYWORDS: Ronchi rulings, LCDs, Mirrors, Optical testing, Optical engineering, Image quality, Diffraction, Spatial frequencies, Polarizers, Diffraction gratings

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Proceedings Article | 11 August 2008 Paper

Paper

Optical testing by means of one-dimensional interferograms performed with a point-diffraction interferometer

Luis Rodríguez-Castillo, Fermín Granados-Agustín, Alejandro Cornejo-Rodríguez

Proceedings Volume 7063, 706315 (2008) https://doi.org/10.1117/12.795582

KEYWORDS: Wavefronts, Interferometers, Optical testing, Spherical lenses, Monochromatic aberrations, CCD cameras, Diffraction, Transmittance, Glasses, Coating

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Proceedings Article | 15 July 2008 Paper

Paper

Correction of the wavefront using the irradiance transport equation

M. García, F. Granados, A. Cornejo

Proceedings Volume 7015, 70155F (2008) https://doi.org/10.1117/12.790167

KEYWORDS: Wavefronts, Wavefront sensors, Mirrors, Lenses, Partial differential equations, Astronomy, Wave propagation, Optical testing, Beam propagation method, Adaptive optics

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SPIE Journal Paper | 1 January 2007

Comparative analysis of pattern reconstruction using orthogonal moments

Alfonso Padilla-Vivanco, Gonzalo Urcid-Serrano, Fermín-Solomon Granados-Agustín, Alejandro Cornejo Rodriguez

OE, Vol. 46, Issue 01, 017002, (January 2007) https://doi.org/10.1117/12.10.1117/1.2432878

KEYWORDS: Signal to noise ratio, Optical engineering, Image restoration, Image filtering, Spatial frequencies, Image processing, Wavelet transforms, Binary data, Zernike polynomials, Denoising

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Proceedings Article | 1 February 2006 Paper

Paper

Measuring the contour of a wavefront using the Irradiance Transport Equation (ITE)

Luis Castillo-Rodríguez, Fermín Granados-Agustín, Manuel Fernández-Guasti, Alejandro Cornejo-Rodríguez

Proceedings Volume 6034, 60341R (2006) https://doi.org/10.1117/12.668165

KEYWORDS: Wavefronts, Spherical lenses, Optical testing, Mathematics, Optical design, Optical fabrication, Wave propagation, Paraxial approximations, Neon, CCD cameras

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Proceedings Article | 1 February 2006 Paper

Paper

Ronchi test with sub-structured gratings

Yaoltzin Luna-Zayas, Fermín-Granados Agustín, Alejandro Cornejo-Rodríguez

Proceedings Volume 6034, 60341W (2006) https://doi.org/10.1117/12.668170

KEYWORDS: Ronchi rulings, LCDs, Computer simulations, Sensors, Optical testing, Light emitting diodes, Optical components, Ray tracing, Interferometry, Numerical simulations

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Proceedings Article | 14 February 2005 Paper

Paper

Phasing a segmented mirror using the subapertures method

Fausto Escobar-Romero, Fermin-Solomon Granados-Agustin, Alejandro Cornejo-Rodriguez

Proceedings Volume 5776, (2005) https://doi.org/10.1117/12.611869

KEYWORDS: Mirrors, Segmented mirrors, Wavefronts, Geometrical optics, Telescopes, Optical testing, Astronomical telescopes, Interferometers, Spherical lenses, Analytical research

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Proceedings Article | 14 February 2005 Paper

Paper

Physical theory of ronchigrams resulting from unequal strip-widths rulings

Noel Toto Arellano, Gustavo Rodriguez Zurita, Alejandro Cornejo Rodriguez

Proceedings Volume 5776, (2005) https://doi.org/10.1117/12.611857

KEYWORDS: Monochromatic aberrations, Diffraction, Diffraction gratings, Ronchi rulings, Absorption, Transmittance, Polishing, Optical testing, Surface finishing, Spherical lenses

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Proceedings Article | 2 November 2004 Paper

Paper

Correlation-based rotational signature of planar binary objects

Gonzalo Urcid-Serrano, Alfonso Padilla-Vivanco, Alejandro Cornejo-Rodriguez, Javier Baez-Rojas

Proceedings Volume 5558, (2004) https://doi.org/10.1117/12.558744

KEYWORDS: Convolution, Binary data, Distortion, Optical correlators, Object recognition, Transparency, Hybrid optics, Analog electronics, Image analysis

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Proceedings Article | 21 October 2004 Paper

Paper

Numerical simulation to align a segment mirror

J. Fausto Escobar-Romero, Fermin-Solomon Granados-Agustin, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591682

KEYWORDS: Mirrors, Numerical simulations, Telescopes, Optical testing, Optical alignment, Laser optics, Astronomy, Astronomical telescopes, Laser applications, Silicon

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Proceedings Article | 21 October 2004 Paper

Paper

Interferometrical measurement of radii of local curvature in a conical surface

J. Daniel Sacramento Solano, Fermin-Solomon Granados-Agustin, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591962

KEYWORDS: Error analysis, Astatine, Interferometry, Spherical lenses, Surface finishing, Laser optics, Atrial fibrillation, Tolerancing, Aluminum, Optical testing

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Proceedings Article | 21 October 2004 Paper

Paper

Phase shifting interferometry using correlation

Adriana Nava-Vega, Luis Salas, Esteban Luna-Aguilar, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591665

KEYWORDS: Phase interferometry, Numerical simulations, Phase shifts, Interferometers, Correlation function, Interferometry, Algorithm development, Phase measurement, Phase shifting, Laser optics

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Proceedings Article | 21 October 2004 Paper

Paper

Obtaining the phase in the star test using genetic algorithms

Marcos Salazar Romero, Sergio Vazquez-Montiel, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591596

KEYWORDS: Point spread functions, Genetic algorithms, Stars, Wavefront aberrations, Optimization (mathematics), Monochromatic aberrations, Diffraction, Wavefronts, Binary data, Image analysis

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Proceedings Article | 21 October 2004 Paper

Paper

Image transformer for spectroscopy

P. Garcia, O. Cardona, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.591140

KEYWORDS: Spectroscopy, Transformers, Glasses, Telescopes, Imaging spectroscopy, Microscopes, Objectives, Image resolution, Spectral resolution, Optical design

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Proceedings Article | 21 October 2004 Paper

Paper

Physical theory of Ronchi-grams unequal strip-widths rulings

N. Toto-Arellano, Gustavo Rodriguez Zurita, Alejandro Cornejo-Rodriguez

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.592208

KEYWORDS: Diffraction gratings, Absorption, Monochromatic aberrations, Diffraction, Ronchi rulings, Optical testing, Inspection, Image processing, Mathematics, Nanolithography

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Proceedings Article | 26 February 2004 Paper

Paper

Alignment of two paraboloid off-axis sections by measuring the sagitta

Fermin Granados-Agustin, Maria Percino-Zacarias, Sergio Vazquez y Montiel, Alejandro Cornejo-Rodriguez

Proceedings Volume 5252, (2004) https://doi.org/10.1117/12.513194

KEYWORDS: Optical fabrication, Optical testing, Metrology, Reflectivity, Reflector telescopes, Telescopes, Carbon, Manufacturing, Prototyping

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Proceedings Article | 26 February 2004 Paper

Paper

Measuring the local radii of the curvature of an aspheric surface using two interferometric methods

Fermin Granados-Agustin, Fausto Escobar-Romero, J. Daniel Sacramento-Solano, Alejandro Cornejo-Rodriguez

Proceedings Volume 5252, (2004) https://doi.org/10.1117/12.513436

KEYWORDS: Aspheric lenses, Interferometry, Optical fabrication, Optical testing, Metrology

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Proceedings Article | 19 November 2003 Paper

Paper

Testing a paraboloid mirror using annular subapertures without auxiliary optics

Fermin Granados-Agustin, Fausto Escobar-Romero, Alejandro Cornejo-Rodriguez

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.524467

KEYWORDS: Optics manufacturing, Mirrors, Geometrical optics, Fizeau interferometers, Spherical lenses, Wavefronts, Interferometers, Optical testing, Astrophysics, Electronics

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Proceedings Article | 4 February 2003 Paper

Paper

The classical Ronchi test for piston detection

Javier Salinas, Esteban Luna-Aguilar, Luis Salas, Alejandro Cornejo, I. Cruz Torres, Victor Garcia

Proceedings Volume 4837, (2003) https://doi.org/10.1117/12.458682

KEYWORDS: Ronchi rulings, Image segmentation, Error analysis, Mirrors, Segmented mirrors, Wavefronts, Interferometers, Spherical lenses, Optical testing, Telescopes

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SPIE Journal Paper | 1 December 2002

Two-dimensional average contrast analysis of the joint Fourier spectrum under rotation of an input object

Alfonso Padilla-Vivanco, Gonzalo Urcid-Serrano, Javier Baez-Rojas, Alejandro Cornejo-Rodriguez

OE, Vol. 41, Issue 12, (December 2002) https://doi.org/10.1117/12.10.1117/1.1518676

KEYWORDS: Fourier transforms, Binary data, Optical engineering, Image processing, Fringe analysis, Brain, Transparency, Charge-coupled devices, Analog electronics, Optical correlators

SPIE Journal Paper | 1 October 2001

Digital synthesis of binary diffractive masks using mathematical morphology

G. Urcid-S., Javier Baez-Rojas, Alejandro Cornejo-Rodriguez

OE, Vol. 40, Issue 10, (October 2001) https://doi.org/10.1117/12.10.1117/1.1404116

KEYWORDS: Binary data, Mathematical morphology, Raster graphics, Transmittance, Far-field diffraction, Video, Visualization, Optical engineering, LCDs, Diffraction

Proceedings Article | 14 August 2001 Paper

Paper

Piston detection with the classical Ronchi test

Javier Salinas-Luna, Esteban Luna-Aguilar, Luis Salas, Alejandro Cornejo-Rodriguez, Victor Garcia

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437101

KEYWORDS: Image segmentation, Ronchi rulings, Segmented mirrors, Mirrors, Interferometers, Telescopes, Wavefronts, Geometrical optics, Laser optics, Control systems

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Proceedings Article | 14 August 2001 Paper

Paper

Analysis of the joint Fourier spectrum for dual-input single-channel rotation

G. Urcid-S., A. Padilla-V., Alejandro Cornejo-Rodriguez, Javier Baez-Rojas

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437097

KEYWORDS: Visibility, Fringe analysis, Binary data, Analog electronics, Diffraction, Image filtering, Modulation, Interferometers, Spatial frequencies, Channel projecting optics

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Proceedings Article | 14 August 2001 Paper

Paper

Analysis of diffraction images by a Ronchi grating of objects with a periodical structure

C. Santiago Tepantlan, Fermin Granados Agustin, Alejandro Cornejo-Rodriguez

Proceedings Volume 4419, (2001) https://doi.org/10.1117/12.437232

KEYWORDS: Diffraction, Ronchi rulings, Optical microscopes, Diffraction gratings, Image analysis, Image processing, Software, Light sources, Paraxial approximations, Laser optics

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SPIE Journal Paper | 1 December 1996

Measuring the parallelism of transparent and nontransparent plates

Alberto Jaramillo-Nunez, Carlos Robledo-Sanchez, Alejandro Cornejo-Rodriguez

OE, Vol. 35, Issue 12, (December 1996) https://doi.org/10.1117/12.10.1117/1.601083

KEYWORDS: Interferometers, Reticles, Beam splitters, CCD cameras, Reflection, Precision measurement, Optical engineering, Glasses, Sensors, Refraction

SPIE Journal Paper | 1 December 1996

Apparatus for cementing doublet lenses

Alberto Jaramillo-Nunez, David Gale, Alejandro Cornejo-Rodriguez

OE, Vol. 35, Issue 12, (December 1996) https://doi.org/10.1117/12.10.1117/1.601104

KEYWORDS: Cements, Lenses, Sensors, Calibration, Optical mounts, Glasses, Charge-coupled devices, Beam splitters, CCD cameras, Optical alignment

Proceedings Article | 5 February 1996 Paper

Paper

Design of astronomical telescopes of two mirrors using genetic algorithm in the state of optimization

Sergio Vazquez-Montiel, Alejandro Cornejo-Rodriguez

Proceedings Volume 2730, (1996) https://doi.org/10.1117/12.231117

KEYWORDS: Genetic algorithms, Optimization (mathematics), Optical instrument design, Mirrors, Telescopes, Point spread functions, Astronomical telescopes, Optical design, Astrophysics, Astronomical imaging

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Proceedings Article | 5 February 1996 Paper

Paper

Hindle n-spheres in order to prove mirrors convex hyperbolics

M. Percino-Zacarias, Alberto Cordero-Davila, O. Cardona-Nunez, Alejandro Cornejo-Rodriguez

Proceedings Volume 2730, (1996) https://doi.org/10.1117/12.231054

KEYWORDS: Optical spheres, Mirrors, Darmstadtium, Telescopes, Optical components, Lithium, Advanced distributed simulations, Manufacturing

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Proceedings Article | 1 July 1990 Paper

Paper

Fitting interference fringes with generalized least squares method

Alberto Cordero-Davila, Alejandro Cornejo-Rodriguez, O. Cardona-Nunez

Proceedings Volume 1319, (1990) https://doi.org/10.1117/12.22214

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Proceedings Article | 1 July 1990 Paper

Paper

Ronchi and Hartman tests: a null Hartman test

Alejandro Cornejo-Rodriguez, Alberto Cordero-Davila, O. Cardona-Nunez

Proceedings Volume 1319, (1990) https://doi.org/10.1117/12.34908

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Proceedings Article | 1 July 1990 Paper

Paper

Surface contribution to high order aberrations using the Aldis therem and Andersen's algorthms

A. Ortiz-Estardante, Alejandro Cornejo-Rodriguez

Proceedings Volume 1319, (1990) https://doi.org/10.1117/12.22193

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Showing 5 of 65 publications

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