Dr. Elfego Ruiz Profile

Dr. Elfego Ruiz

Professor at Univ Nacional Autónoma de México

SPIE Involvement:

Author

Publications (24)

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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Proceedings Article | 15 June 2006 Paper

CATAVIÑA: new infrared camera for OAN-SPM

Arturo Iriarte, Irene Cruz-González, Luis Martínez, Silvio Tinoco, Gerardo Lara, Elfego Ruiz, Erika Sohn, Abel Bernal, Fernando Angeles, Arturo Moreno, Francisco Murillo, Rosalía Langarica, Esteban Luna, Luis Salas, Vicente Cajero

Proceedings Volume 6276, 62761T (2006) https://doi.org/10.1117/12.672515

KEYWORDS: Digital signal processing, Sensors, Electronics, Cameras, Optical filters, Imaging spectroscopy, Infrared cameras, Signal detection, Telescopes, Signal processing

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Proceedings Article | 10 February 2006 Paper

Hydrodynamic radial polishing tool: HyDRa

E. Sohn, E. Ruiz, E. Luna, L. Salas, M. Núñez, J. Valdés, I. Cruz-González, B. Martínez

Proceedings Volume 6046, 60460C (2006) https://doi.org/10.1117/12.674419

KEYWORDS: Polishing, Surface finishing, Abrasives, Prototyping, Semiconductors, Control systems, Particles, Foam, Freeform optics, Metals

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Proceedings Article | 23 August 2005 Paper

New results in hydrodynamic radial polishing using HyDRa

E. Sohn, E. Ruiz, E. Luna, L. Salas, M. Nunez, J. Valdes, I. Cruz-Gonzalez, B. Martinez

Proceedings Volume 5869, 58690C (2005) https://doi.org/10.1117/12.637409

KEYWORDS: Polishing, Surface finishing, Abrasives, Foam, Control systems, Semiconductors, Prototyping, Freeform optics, Particles, Actuators

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Proceedings Article | 2 May 2005 Paper

HyDra: A novel hydrodynamic polishing tool for high quality optical surfaces

Erika Sohn, Elfego Ruiz, Esteban Luna, Luis Salas, Manuel Nunez, Jorge Valdes, Benjamin Martinez, Irene Cruz-Gonzalez

Proceedings Volume 10315, 1031504 (2005) https://doi.org/10.1117/12.605753

KEYWORDS: Polishing, Surface finishing, Abrasives, Aspheric lenses, Freeform optics, Optical semiconductors, Semiconductors, Interferometry

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Proceedings Article | 30 September 2004 Paper

OSIRIS camera barrel optomechanical design

Alejandro Farah, Carlos Tejada, Jesus Gonzalez, Francisco Cobos, Beatriz Sanchez, Javier Fuentes, Elfego Ruiz

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550658

KEYWORDS: Cameras, Remote sensing, Lenses, Interfaces, Finite element methods, Camera shutters, Tolerancing, Optomechanical design, Manufacturing, Optics manufacturing

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Proceedings Article | 29 September 2004 Paper

Conceptual design and structural analysis for an 8.4-m telescope

Manuel Mendoza, Alejandro Farah, Elfego Ruiz Schneider

Proceedings Volume 5495, (2004) https://doi.org/10.1117/12.563388

KEYWORDS: Telescopes, Mirrors, Optical instrument design, Surface plasmons, Structural design, Astronomical telescopes, Finite element methods, Structural analysis, Astronomy, Large telescopes

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Proceedings Article | 24 September 2004 Paper

Surface roughness results using a hydrodynamic polishing tool (HyDra)

Manuel Nunez, Javier Salinas, Esteban Luna, Luis Salas, Elfego Ruiz, Erika Sohn, Adriana Nava, Irene Cruz, Benjamín Martinez

Proceedings Volume 5494, (2004) https://doi.org/10.1117/12.550573

KEYWORDS: Polishing, Surface finishing, Interferometers, Spherical lenses, Optical spheres, Optics manufacturing, Glasses, Surface roughness, Oxides, Abrasives

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Proceedings Article | 24 September 2004 Paper

New perspectives in hydrodynamic radial polishing techniques for optical surfaces

Elfego Ruiz, Erika Sohn, Esteban Luna, Luis Salas, Alberto Cordero, Jorge Gonzalez, Manuel Nunz, Javier Salinas, Irene Cruz-Gonzalez, Jorge Valdes, Victor Cabrera, Benjamin Martinez

Proceedings Volume 5494, (2004) https://doi.org/10.1117/12.550173

KEYWORDS: Polishing, Surface finishing, Abrasives, Prototyping, Control systems, Particles, Actuators, Glasses, Semiconductors, Mirrors

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Proceedings Article | 7 July 2004 Paper

Lightweight off-axis 8-m class telescope: a case study to ELT approximation

Elfego Ruiz, Erika Sohn, Esteban Luna, Luis Salas, Irene Cruz-Gonzalez

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566267

KEYWORDS: Telescopes, Mirrors, Space telescopes, Off axis mirrors, Actuators, Infrared telescopes, Diffraction, Point spread functions, Aspheric lenses, Telescope design

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Proceedings Article | 7 March 2003 Paper

Dual infrared camera for near- and mid-infrared observations

Luis Salas, Leonel Gutierrez, Mario Tapia, Irene Cruz-Gonzales, Elfego Ruiz Schneider, Esteban Luna-Aguilar, Jorge Valdez, Rafael Costero, Erika Sohn, Francisco Lazo, Joaquin Bohigas, B. Garcia, J. Murillo, Fernando Garfias, Oscar Chapa, Salvador Zazueta, Victor Garcia, Francisco Cobos, Fernando Quiros, Arturo Iriarte, Carlos Tejada

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461962

KEYWORDS: Sensors, Cameras, Infrared cameras, Infrared imaging, Telescopes, Electronics, Mid-IR, Mirrors, Digital signal processing, Optical filters

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Proceedings Article | 30 January 2003 Paper

Large flexible membrane mirrors

Erika Sohn, Elfego Ruiz Schneider, Alejandra Ferreira

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.459059

KEYWORDS: Actuators, Mirrors, Telescopes, Prototyping, Foam, Interfaces, Spherical lenses, Finite element methods, Space telescopes, Glasses

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Proceedings Article | 30 January 2003 Paper

Polishing TIM mirror segments with HyDra

Alberto Cordero-Davila, Esteban Luna-Aguilar, Manuel Nunez, Jorge Gonzalez, Victor Cabrera, Jorge Valdez, Benjamin Martinez, B. Garcia, Victor Garcia-Garduno, Luis Salas, Irene Cruz-Gonzales, Elfego Ruiz Schneider, Erika Sohn, M. A. Rodriguez-Pineda

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.459848

KEYWORDS: Surface finishing, Polishing, Glasses, Mirrors, Optics manufacturing, Computer simulations, Patents, Software, Particles, Motion analysis

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Proceedings Article | 12 November 2001 Paper

Noise reduction in BIB-type detectors

Erika Sohn, Elfego Ruiz Schneider, Luis Salas, Leonel Gutierrez, Irene Cruz-Gonzales

Proceedings Volume 4454, (2001) https://doi.org/10.1117/12.448178

KEYWORDS: Sensors, Interference (communication), Signal to noise ratio, Polarization, Denoising, Quantum efficiency, Signal detection, Mid-IR, Astronomy, Imaging spectroscopy

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Proceedings Article | 2 August 2000 Paper

Structure analysis of the primary mirror support for the TIM using computer-aided finite element method

Alejandro Farah Simon, Maria Pedrayes, Elfego Ruiz Schneider, Gerardo Sierra, Fernando Quiros-Pacheco, Javier Godoy, Erika Sohn

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393948

KEYWORDS: Mirrors, Finite element methods, 3D modeling, Telescopes, Optical instrument design, Actuators, Rubidium, Computer aided design, Sensors, Manufacturing

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Proceedings Article | 2 August 2000 Paper

Design of a capacitive sensor for 3D relative displacement measurements to align the M1 segments of the Mexican Infrared Telescope (TIM)

Fernando Quiros-Pacheco, Elfego Ruiz Schneider, Alejandro Farah Simon, Erika Sohn

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393929

KEYWORDS: Sensors, Electrodes, Image segmentation, Capacitors, 3D metrology, Digital signal processing, Switches, Optical instrument design, Infrared sensors, Image quality

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Proceedings Article | 2 August 2000 Paper

Hydrostatic shoe bearing system for the TIM

Elfego Ruiz Schneider, Erika Sohn, Fernando Quiros-Pacheco, Javier Godoy, Alejandro Farah Simon, R. Quintanilla, P. Soto, Luis Salas, Irene Cruz-Gonzales

Proceedings Volume 4004, (2000) https://doi.org/10.1117/12.393928

KEYWORDS: Telescopes, Ions, Control systems, Optical instrument design, Transducers, Sensors, Surface finishing, Interfaces, Thermal effects, Iron

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Proceedings Article | 25 August 1998 Paper

Performance of the active M1 cell for the 2.1-m telescope of the Observatorio Astronomico Nacional de Mexico

Luis Salas, Leonel Gutierrez, Maria Pedrayes, Jorge Valdez, Esteban Luna-Aguilar, C. Carrasco, Michael Carrillo, B. Garcia, Elfego Ruiz Schneider, Salvador Cuevas, Arturo Iriarte Valverde, A. Cordero, Oswaldo Harris, Fernando Quiros-Pacheco, Erika Sohn, Luis Martinez

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319237

KEYWORDS: Mirrors, Telescopes, Actuators, Monochromatic aberrations, Astronomical telescopes, Image quality, Control systems, Active optics, Image segmentation, Optical testing

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Proceedings Article | 25 August 1998 Paper

Mexican infrared optical new technology telescope (TIM) project

Luis Salas, Elfego Ruiz Schneider, Irene Cruz-Gonzales, Esteban Luna-Aguilar, Salvador Cuevas, Maria Pedrayes, Gerardo Sierra, Erika Sohn, G. Koenigsberger, Jorge Valdez, Oswaldo Harris, Francisco Cobos Duenas, Carlos Tejada, Leonel Gutierrez, Arturo Iriarte Valverde

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319239

KEYWORDS: Telescopes, Mirrors, Infrared telescopes, Infrared technology, Image segmentation, Infrared radiation, Infrared imaging, Actuators, Optical instrument design

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Proceedings Article | 25 August 1998 Paper

Mirror cell and active support system of the Mexican infrared optical telescope (TIM)

Elfego Ruiz Schneider, Erika Sohn, Irene Cruz-Gonzales, Luis Salas, Maria Pedrayes, Gerardo Sierra

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319299

KEYWORDS: Actuators, Mirrors, Infrared telescopes, Telescopes, Image segmentation, Infrared radiation, Sensors, Zerodur, Optical instrument design, Astronomical telescopes

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Proceedings Article | 21 August 1998 Paper

PUMILA: a near-infrared spectrograph for the kinematic study of the interstellar medium

Margarita Rosado, Irene Cruz-Gonzales, Luis Salas, Abel Bernal, Francisco Cobos Duenas, Fernando Garfias, Leonel Gutierrez, Rosalia Langarica, Esteban Luna-Aguilar, Elfego Ruiz Schneider, Erika Sohn, Carlos Tejada, Silvio Tinoco, Jorge Valdez

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317236

KEYWORDS: Kinematics, Fabry–Perot interferometers, Cameras, Galactic astronomy, Spectrographs, Fabry–Perot interferometry, Collimation, Telescopes, Sensors, Iron

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Proceedings Article | 21 August 1998 Paper

Mid-infrared camera/spectrograph for OAN/SPM

Erika Sohn, Elfego Ruiz Schneider, Irene Cruz-Gonzales, Luis Salas

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317218

KEYWORDS: Sensors, Digital signal processing, Cameras, Optical filters, Electronics, Image processing, Mid-IR, Control systems, Multiplexing, Visualization

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Proceedings Article | 21 August 1998 Paper

TEQUILA: NIR camera/spectrograph based on a Rockwell 1024x1024 HgCdTe FPA

Elfego Ruiz Schneider, Erika Sohn, Irene Cruz-Gonzales, Luis Salas, Antonio Parraga, Manuel Perez, Roberto Torres, Francisco Cobos Duenas, Gaston Gonzalez, Rosalia Langarica, Carlos Tejada, Beatriz Sanchez, Arturo Iriarte Valverde, Jorge Valdez, Leonel Gutierrez, Francisco Lazo, Fernando Angeles

Proceedings Volume 3354, (1998) https://doi.org/10.1117/12.317332

KEYWORDS: Sensors, Cameras, Digital signal processing, Telescopes, Electronics, Staring arrays, Control systems, Mercury cadmium telluride, Optical filters, Fiber optics

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Proceedings Article | 1 June 1994 Paper

CAMILA: Infrared Camera/Spectrograph for OAN-SPM

Irene Cruz-Gonzales, Luis Carrasco, Elfego Ruiz Schneider, Lorenzo Leija, Michael Skrutskie, Michael Meyer, Pablo Sotelo, P. Barbosa, Leonel Gutierrez, Arturo Iriarte Valverde, Francisco Cobos Duenas, Abel Bernal, Beatriz Sanchez, Jorge Valdez, S. Arguelles, Paolo Conconi

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176740

KEYWORDS: Infrared cameras, Electronics, Cameras, Sensors, Spectrographs, Telescopes, Imaging spectroscopy, Control systems, Spectroscopy, Infrared radiation

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Showing 5 of 24 publications

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