Optical Metrology

Rufino Díaz-Uribe

Rufino Díaz-Uribe obtained the BSc (1980), MSc (1982) and the PhD (1990) degrees in physics from the National University of Mexico (UNAM). He was at the University of Puebla from 1983 to 1986; there, he was the head of the Physics Department of the Physics and Mathematics School and he participated in setting up a research laboratory in optics. Since 1986 he has been at the UNAM; first in the Science School until 1988 and then in the Centre for Applied Sciences and Technology (CCADET), to the present day. In 1988 he collaborated in the creation of the Applied Optics Laboratory, which was headed by him from 1995 to 1998; from 2000 to 2002 he was head of the Applied Research Department. His main research area is Optical Testing, where he developed the Null Screen method, which has been also useful for measuring the topography of human corneas and the shape of mirrors used as solar concentrators, as well as freeforms. He has been teaching and promoting optics very enthusiastically since 1978; in 1996 and 2019 he was honored by the UNAM for his teaching work in optics. He is Senior Member of the OSA and SPIE; he has been General Secretary of the  SMF (Mexican Physical Society), and president of its Optical Division. In 2016 he founded Bleps Vision, a startup for developing a portable corneal topographer.

  • Optical Metrology:

  • Optical Testing of aspherics and freeforms

  • Optical Instrumentation

  • Optical Physics

  • Visual Optics

  • Avances en la evaluación óptica de superficies no convencionales (Advances on the optical testing of non-conventional surfaces). PAPIIT, DGAPA-UNAM.

  • Project No: IT102520. $ 20,200.00. USD
    Responsable del Proyecto.
    From January 2020 to December 2021.


  • Optics Lab,  Physics Program, Facultad de Ciencias, UNAM, Semesters: 2021-1, 2020-2, 2020-1


  • Research Project I (Optics Lab), Master Program in Engineering, Semesters:2021-1, 2020-1
  • Optical Testing ,  Master Program in Engineering, Semester, 2021-2.

Recently Graduated Students:


  • Carlos Enrique Valderrama Juárez, “Point shifting method for testing aspherics with  a squared prism null-screen prototype”, Physics Program. Facultad de Ciencias, UNAM. Graduation Date: December, 08, 2020
  • Luis Carlos López Guerra, “Calibration of Cylindrical Null-Screens for a portable  Corneal Topographer”, Physics Program. Facultad de Ciencias, UNAM. Graduation Date: June, 20, 2019
  • Irán Robles Gutiérrez,  “Automating and testing a Shack-Hartmann aberrometer for ophthalmology”. Technology Program. Facultad de Estudios Superiores Cuautitlán, UNAM. Graduation Date: June, 17, 2015.


  • Oliver Huerta Carranza, “Algorithm for correcting errors in corneal topography due to misalignments”, Master Program in Engineering, UNAM. Graduation Date: June, 20, 2017


  • Mario González Cardel, “Characterizing off-axis optical surfaces by laser deflectometry”. PhD Program in Engineering, UNAM. Graduation Date: August, 12, 2016.
  • Martín Isaías Rodríguez Rodríguez, “Dynamic Point Shifting Method in Corneal Topography by  null screens”. PhD Program in Optics, Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE). Tonanzintla, Puebla. Graduation Date: June, 25, 2015
  • Daniel Aguirre-Aguirre, Brenda Villalobos-Mendoza, Rufino Díaz-Uribe, and Manuel Campos-García, “Null-screen design for highly freeform surface testing,” Opt. Express 28, 36706-36722 (2020). https://doi.org/10.1364/OE.409073.
  • Oliver Huerta-Carranza, Rufino Díaz-Uribe, and Maximino Avendaño-Alejo, “Exact equations to measure highly aberrated wavefronts with the Hartmann test,” Opt. Express 28, 30928-30942 (2020). https://doi.org/10.1364/OE.405363
  • Yobani Mejía, Rufino Díaz-Uribe, “Third order distortion analysis froman envelope curve”, Optics Communications 454 (2020) 124492, https://doi.org/10.1016/j.optcom.2019.124492
  • Manuel Campos-García, Andrés Peña-Conzuelo, Oliver Huerta-Carranza, José Rufino Díaz-Uribe, Ulises Edmundo Espinoza-Nava, and Víctor Iván Moreno-Oliva, “Testing the surface quality of a reflective parabolic trough solar collector with two flat null-screens”, Appl. Opt. 58, 752-763 (2019), https://doi.org/10.1364/AO.58.000752
  • Daniel Aguirre-Aguirre, Manuel Campos-García, Rufino Díaz-Uribe and Brenda Villalobos-Mendoza, “General equations for the null-screen test for aspherical surfaces with deformation coefficients”, Applied Optics, 57, No. 35 / 10 December 2018 / 10230-10238. https://doi.org/10.1364/AO.57.010230.
  • Daniel Aguirre-Aguirre, Rufino Diaz-Uribe, Manuel Campos-Garcia, Brenda Villalobos-Mendoza, Rafael Izazaga-Pérez and Oliver Huerta-Carranza, “Fast conical surfaces evaluation with null-screens and randomized algorithms”, Applied Optics, 56, No. 5 / February 10, 2017, 1370-1382. https://doi.org/10.1364/AO.56.001370. ISSN: 1559-128X
  • Camilo A. Arancibia-Bulnes, Manuel I. Peña-Cruz, Amaia Mutuberría, Rufino Díaz-Uribe, Marcelino Sánchez-González “A Survey of Methods for the Evaluation of Reflective Solar Concentrator Optics”, Renewable & Sustainable Energy Reviews, 69 (2017) 673–684, http://dx.doi.org/10.1016/j.rser.2016.11.048. ISSN: 1364-0321.
  • Gabriel Castillo-Santiago, Diana Castán-Ricaño, Maximino Avendaño-Alejo, Luis Castañeda, and Rufino Díaz-Uribe, “Design of Hartmann type null screens for testing a plano-convex aspheric lens with a CCD sensor inside the caustic,” Opt. Express 24, 19405-19416 (2016). https://doi.org/10.1364/OE.24.019405.
  • Yobani Mejía, Rufino Díaz-Uribe, Andrea L. Pacheco, Amilcar Estrada-Molina, Frank Spors, “Measuring conic constant and vertex radius of fast convex conic surfaces from a set of Hartmann patterns”, Optics Communications, 363 (2016)166–175; http://dx.doi.org/10.1016/j.optcom.2015.11.011.
  • M. I. Rodríguez-Rodríguez, A. Jaramillo-Núñez, and R. Díaz-Uribe, “Dynamic point shifting with null screens using three LCDs as targets for corneal topography,” Appl. Opt. 54, 6698-6710 (2015).
  • G. Corkidi, R. Díaz-Uribe, J.L. Folch-Mallol, J. Nieto-Sotelo, “COVASIAM: an Image Analysis Method that allows Detection of Confluent and Variable-Size Microbial Colonies for Automated Counting”, Applied and Environmental Microbiology, 64 (1998) 1400-1404. Total de citas: 64

  • Rufino Díaz-Uribe and Manuel Campos-García, “Null screen testing of fast convex aspheric surfaces”, Appl. Opt., 39 (2000) 2670-2677. Total de citas: 35

  • O. Cardona-Núñez, A. Cornejo-Rodríguez, R.Díaz-Uribe, A. Cordero-Dávila y J. Pedraza-Contreras, “Conic that best fits an off axis conic section”, Appl Opt., 25 (1986) 3585-3588. Total de citas: 27

  • Augusto García-Valenzuela, Rufino Díaz-Uribe, “Detection limits of an internal-reflection sensor for the optical beam deflection method”, Appl. Opt., 36 (1997) 4456-4462. Total de citas: 26

  • Camilo A. Arancibia-Bulnes, , Manuel I. Peña-Cruz, Amaia Mutuberría, Rufino Díaz-Uribe, Marcelino Sánchez-González “A Survey of Methods for the Evaluation of Reflective Solar Concentrator Optics”, Renewable & Sustainable Energy Reviews, 69 (2017) 673–684, http://dx.doi.org/10.1016/j.rser.2016.11.048.Total de citas: 25

  • M. Avendano-Alejo and R. Diaz-Uribe, “Testing a fast off-axis parabolic mirror using tilted null-screens”, Appl. Opt. 45, 2607-2614 (2006). Total de citas: 22

  • Rufino Diaz-Uribe, A. Jiménez-Hernández, “Phase measurement for segmented optics with1D diffraction patterns”, Optics Express, 12 (2004), 1192-1204, http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-7-1192. Total de citas: 21

  • M. Avendaño-Alejo, V.I. Moreno-Oliva, M. Campos-García and R. Díaz-Uribe, “Quantitative evaluation of an off-axis parabolic mirror by using a tilted null screen”, (2009) Applied Optics, 48 (5) , pp. 1008-1015. Total de citas: 20

  • Patent:
    “Aparato, método y sistema portátil para medir la topografía corneal”. José Rufino Díaz Uribe, Martín Isaías Rodríguez Rodríguez. Solicitud de Patente, No. de expediente: MX/a/2017/012047. Folio: MX/E/2017/069600. Solicitada en México ante el IMPI el 25 de Septiembre de 2017. PATENTE otorgada en 2021.

  • Optics Lab Manual (in Spanish):

    Díaz Uribe, José Rufino, Laboratorio de óptica : teoría y práctica, 1a edición. Ciudad de México : Universidad Nacional Autónoma de México, Facultad de Ciencias, 2018. ISBN 978-607-300-9911. Tiraje: 500 ejemplares. 135 páginas



  • Oliver Huerta Carranza, Development of a system for testing freeforms, PhD Program in Engineering, UNAM


  • Martín López Luna, Experimental Analysis of the  distortion of a simple  optical systemMaster Program in Engineering, UNAM
  • Irán Robles Gutiérrez, Optical Pachymetry with a Slit lampMaster Program in Engineering, UNAM
  • Valderrama Juárez Carlos Enrique, Title to be defined, Master Program in Engineering, UNAM


  • José Carlos Joaquín Altamirano, Physics, Facultad de Ciencias, UNAM

Postdoctoral fellows

  • Dr. Dulce María González Utrera, Posdoc, DGAPA, UNAM. 2019-2021