Prof. José M. Sasián Profile

Prof. José M. Sasián

Professor at Wyant College of Optical Sciences

SPIE Involvement:

Publications (113)

SPIE Journal Paper | 18 April 2024

General analysis of freeform two-mirror telescopes

Tyler Peterson, José Sasián

OE, Vol. 63, Issue 04, 045104, (April 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.4.045104

KEYWORDS: Mirrors, Telescopes, Monochromatic aberrations, Imaging systems, Optical engineering, Fourier transforms, Optical instrument design, Distortion, Optical spheres, Spherical lenses

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SPIE Journal Paper | 5 February 2024

Teaching lens design: characteristics and control of oblique spherical aberration

José Sasián

OE, Vol. 63, Issue 07, 071402, (February 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.7.071402

KEYWORDS: Monochromatic aberrations, Pupil aberrations, Lens design, Optical aberrations, Refraction, Wavefront aberrations, Cell phones, Optical engineering, Optical lithography, Distortion

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Proceedings Article | 14 September 2023 Paper

Lens design with achromatic doublets

José Sasián

Proceedings Volume 12798, 127981E (2023) https://doi.org/10.1117/12.2692119

KEYWORDS: Monochromatic aberrations, Lens design, Design and modelling, Plano, Zoom lenses, Objectives, Glasses, Diffraction, Wavefront aberrations, Relays

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Proceedings Article | 14 September 2023 Paper

Structural aberration coefficients for freeform imaging systems

Tyler Peterson, José Sasián

Proceedings Volume 12798, 127982B (2023) https://doi.org/10.1117/12.2692530

KEYWORDS: Monochromatic aberrations, Design and modelling, Mirrors, Imaging systems, Telescopes, Fourier transforms, Aberration theory, Pupil aberrations, Freeform optics, Distortion, Optical aberrations, Aberration correction

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SPIE Journal Paper | 27 March 2023

Structural aberration coefficients for freeform imaging systems

Tyler Peterson, José Sasián

OE, Vol. 62, Issue 03, 035104, (March 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.3.035104

KEYWORDS: Monochromatic aberrations, Imaging systems, Mirrors, Design and modelling, Wavefront aberrations, Deformation, Telescopes, Pupil aberrations, Mirror surfaces, Distortion

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SPIE Journal Paper | 19 March 2023

Simple and accurate method for determining lens focal length

José Sasián

OE, Vol. 62, Issue 03, 034108, (March 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.3.034108

KEYWORDS: Distance measurement, Monochromatic aberrations, Error analysis, Picosecond phenomena, Relays, Optical engineering, Autocollimation, Lenses, Mirrors, Collimation

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SPIE Journal Paper | 27 October 2022

Split achromatic doublet problem and lens element centering in a drop-in barrel

José Sasián, David Brady, Martin Kebschull

OE, Vol. 61, Issue 10, 105112, (October 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.10.105112

KEYWORDS: Monochromatic aberrations, Tolerancing, Optical engineering, Diffraction, Chemical elements, Wavefronts, Objectives, Monte Carlo methods, Manufacturing, Glasses

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SPIE Journal Paper | 7 October 2022

Lens sensitivity to aberration: scaling rules

José Sasián, David Brady

OE, Vol. 61, Issue 10, 105102, (October 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.10.105102

KEYWORDS: Monochromatic aberrations, Received signal strength, Distortion, Fourier transforms, Lens design, Optical engineering, Wavefronts, Glasses, Tolerancing, Error analysis

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SPIE Journal Paper | 22 November 2021 Open Access

Method for the design of nonaxially symmetric optical systems using free-form surfaces (Erratum)

Dmitry Reshidko, Jose Sasian

OE, Vol. 60, Issue 11, 119801, (November 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.11.119801

KEYWORDS: Mirrors, Aspheric lenses, Systems modeling, Optical engineering, Monochromatic aberrations, Distortion, Telescopes, Optical instrument design, Imaging systems, Geometrical optics

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Proceedings Article | 19 November 2021 Paper

Some lens structural performance displays

Jose Sasian

Proceedings Volume 12078, 120780V (2021) https://doi.org/10.1117/12.2603640

KEYWORDS: Lens design, Relays, Modulation transfer functions, Monte Carlo methods, Tolerancing

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SPIE Journal Paper | 20 May 2021

Modeling light interference figures and isogyres of uniaxial and biaxial birefringent optical elements

José Sasián

OE, Vol. 60, Issue 05, 055102, (May 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.055102

KEYWORDS: Optical components, Birefringence, Optical engineering, Monochromatic aberrations, Polarization, Wavefronts, Refraction, Polarizers, Superposition, Geometrical optics

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SPIE Journal Paper | 29 January 2021

Improving as-built miniature lenses that use many aspheric surface coefficients with two desensitizing techniques

Leticia Carrión-Higueras, Arnau Calatayud, José Sasian

OE, Vol. 60, Issue 05, 051208, (January 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.051208

KEYWORDS: Aspheric lenses, Lenses, Tolerancing, Lens design, Modulation transfer functions, Monte Carlo methods, Optical engineering, Image quality, Fluctuations and noise, Wavefronts

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SPIE Journal Paper | 5 January 2021

Characteristics and control of linear astigmatism aberration in a nonaxially symmetric optical system

José Sasián, Weichuan Gao

OE, Vol. 60, Issue 05, 051206, (January 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.5.051206

KEYWORDS: Monochromatic aberrations, Mirrors, Distortion, Optical engineering, Confocal microscopy, Fluctuations and noise, Telescopes, Reflectivity, Control systems, Aspheric lenses

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SPIE Journal Paper | 14 December 2020 Open Access

Angular Spectrum Evaluation Tool analysis of the Crown of Light diamond cut

Jose Sasian, Reuven Paikin

OE, Vol. 59, Issue 12, 124104, (December 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.12.124104

KEYWORDS: Diamond, Scintillation, Light sources, Optical engineering, Light, Light sources and illumination, Stars, Eye, Retroreflectors, Refraction

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SPIE Journal Paper | 7 September 2020

Compact, unit magnification, reflective imaging relay using freeform surfaces

José Sasián, Weichuan Gao

OE, Vol. 59, Issue 09, 095103, (September 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.9.095103

KEYWORDS: Mirrors, Relays, Reflectivity, Monochromatic aberrations, Aspheric lenses, Imaging systems, Optical engineering, Distortion, Freeform optics, Diffraction

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Proceedings Article | 21 August 2020 Presentation + Paper

Enhancements and applications of induced aberration theory

Blake Crowther, José Sasián, Jeffrey Hoffman

Proceedings Volume 11479, 114790F (2020) https://doi.org/10.1117/12.2569041

KEYWORDS: Lens design, Aspheric lenses, Wavefronts, Aberration theory, Chemical elements, Visualization, Tolerancing, Monochromatic aberrations, Modulation transfer functions

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Proceedings Article | 21 August 2020 Presentation

Chair Introduction

Richard Youngworth, Jose Sasian

Proceedings Volume 11488, 1148802 (2020) https://doi.org/10.1117/12.2581975

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Proceedings Article | 9 September 2019 Presentation + Paper

Aberrations of zoom lens kernel

José Sasián

Proceedings Volume 11106, 1110604 (2019) https://doi.org/10.1117/12.2530491

KEYWORDS: Chemical elements, Curium, Optical components, Spherical lenses

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SPIE Journal Paper | 5 January 2019

Method of confocal mirror design

José Sasián

OE, Vol. 58, Issue 01, 015101, (January 2019) https://doi.org/10.1117/12.10.1117/1.OE.58.1.015101

KEYWORDS: Confocal microscopy, Monochromatic aberrations, Mirrors, Distortion, Aspheric lenses, Optical engineering, Reflectivity, Off axis mirrors, Optical design, Image quality

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SPIE Journal Paper | 29 October 2018

Method to evaluate surface figure error budget for optical systems

Weichuan Gao, Richard Youngworth, Jose Sasian

OE, Vol. 57, Issue 10, 105108, (October 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.10.105108

KEYWORDS: Error analysis, Wavefronts, Zernike polynomials, Received signal strength, Tolerancing, Statistical analysis, Optical engineering, Zemax, Monochromatic aberrations, Spherical lenses

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Proceedings Article | 17 September 2018 Paper

Optimizing trefoil phase plates design for color wavefront coding

Miguel Olvera-Angeles, Alfonso Padilla-Vivanco, Karina Ortega, José Sasian, Jim Schwiegerling, Justo Arines, Eva Acosta

Proceedings Volume 10745, 1074515 (2018) https://doi.org/10.1117/12.2321961

KEYWORDS: Monochromatic aberrations, Wavefronts, Chromatic aberrations, Genetic algorithms, Optimization (mathematics), Deconvolution, Color imaging, Image resolution, Modulation, Imaging systems

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Proceedings Article | 5 June 2018 Paper

The method of confocal mirror design

Jose Sasian

Proceedings Volume 10690, 1069015 (2018) https://doi.org/10.1117/12.2309999

KEYWORDS: Confocal microscopy, Distortion, Reflectivity, Aspheric lenses

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SPIE Journal Paper | 12 May 2018 Open Access

Method for the design of nonaxially symmetric optical systems using free-form surfaces

Dmitry Reshidko, Jose Sasian

OE, Vol. 57, Issue 10, 101704, (May 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.10.101704

KEYWORDS: Aspheric lenses, Monochromatic aberrations, Optical design, Mirrors, Optical instrument design, Imaging systems, Telescopes, Confocal microscopy, Optical engineering, Distortion

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Proceedings Article | 27 November 2017 Paper

Miniature camera lens design with a freeform surface

Yufeng Yan, Jose Sasian

Proceedings Volume 10590, 1059012 (2017) https://doi.org/10.1117/12.2292653

KEYWORDS: Cameras, Lens design, Tolerancing, Freeform optics, Optical design, Photography

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Proceedings Article | 27 November 2017 Paper

Air lens vs aspheric surface: a lens design case study

Weichuan Gao, José Sasián

Proceedings Volume 10590, 105900B (2017) https://doi.org/10.1117/12.2287888

KEYWORDS: Aspheric lenses, Lens design, Aberration theory

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Proceedings Article | 27 November 2017 Paper

Joseph Petzval lens design approach

José Sasián

Proceedings Volume 10590, 1059017 (2017) https://doi.org/10.1117/12.2285108

KEYWORDS: Lens design, Photography, Aberration theory, Objectives

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Proceedings Article | 27 November 2017 Paper

A method for the design of unsymmetrical optical systems using freeform surfaces

Dmitry Reshidko, Jose Sasian

Proceedings Volume 10590, 105900V (2017) https://doi.org/10.1117/12.2285134

KEYWORDS: Optical design, Aberration correction, Freeform optics, Aberration theory

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Optical systems that do not have axial symmetry can provide useful and unique solutions to certain imaging problems. However, the complexity of the optical design task grows as the degrees of symmetry are reduced and lost: there are more aberration terms to control, and achieving a sharp image over a wide field-of-view at fast optical speeds becomes challenging. Plane-symmetric optical systems represent a large family of practical non-axially symmetric systems that are simple enough to be easily described and thus are well understood. Design methodologies and aberration theory of plane-symmetric optical systems have been discussed in the literature, and various interesting solutions have been reported [1-4]. The little discussed in the literature technique of confocal systems is effective for the design of unsymmetrical optics. A confocal unsymmetrical system is constructed in such a way that there is sharp image along a given ray (called the optical axis ray (OAR)) surface after surface. It is possible to show that such a system can have a reduced number of field aberrations, and that the system will behave closer to an axially symmetric system [5-6]. In this paper, we review a methodology for the design of unsymmetrical optical systems. We utilize an aspherical/freeform surface constructed by superposition of a conic expressed in a coordinate system that is centered on the off-axis surface segment rather than centered on the axis of symmetry, and an XY polynomial. The conic part of the aspherical/freeform surface describes the base shape that is required to achieve stigmatic imaging surface after surface along the OAR. The XY polynomial adds a more refined shape description to the surface sag and provides effective degrees of freedom for higher-order aberration correction. This aspheric/freeform surface profile is able to best model the ideal reflective surface and to allow one to intelligently approach the optical design. Examples of two- and threemirror unobscured wide field-of-view reflective systems are provided to show how the methods and corresponding aspheric/freeform surface are applied. We also demonstrate how the method can be extended to design a monolithic freeform objective.

SPIE Journal Paper | 31 October 2017

Method to design apochromat and superachromat objectives

Jose Sasian, Weichuan Gao, Yufeng Yan

OE, Vol. 56, Issue 10, 105106, (October 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.10.105106

KEYWORDS: Colorimetry, Glasses, Lens design, Objectives, Optical engineering, Chemical elements, Germanium, Silicon, Infrared radiation, Monochromatic aberrations

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SPIE Journal Paper | 27 September 2017

Photographic zoom fisheye lens design for DSLR cameras

Yufeng Yan, Jose Sasian

OE, Vol. 56, Issue 09, 095103, (September 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.9.095103

KEYWORDS: Zoom lenses, Monochromatic aberrations, Lens design, Photography, Cameras, Sensors, Glasses, Image sensors, Modulation transfer functions, Distortion

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Proceedings Article | 22 August 2017 Presentation + Paper

Tolerancing a lens for LED uniform illumination

Jieun Ryu, Jose Sasian

Proceedings Volume 10377, 1037703 (2017) https://doi.org/10.1117/12.2276864

KEYWORDS: Tolerancing, Light emitting diodes, Freeform optics, Optical alignment, Error analysis

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SPIE Journal Paper | 29 November 2016

Role of aberrations in the relative illumination of a lens system

Dmitry Reshidko, Jose Sasian

OE, Vol. 55, Issue 11, 115105, (November 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.115105

KEYWORDS: Aberration theory, Monochromatic aberrations, Distortion, Illumination engineering, Ray tracing, Lens design, Objectives, Optical engineering, Image quality, Patents

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SPIE Journal Paper | 25 November 2016

Aspheric/freeform optical surface description for controlling illumination from point-like light sources

José Sasián, Dmitry Reshidko, Chia-Ling Li

OE, Vol. 55, Issue 11, 115104, (November 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.115104

KEYWORDS: Aspheric lenses, Light sources, Ray tracing, Lithium, Geometrical optics, Illumination engineering, Lenses, Optical engineering, Lens design, Nonimaging optics

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Proceedings Article | 30 September 2016 Presentation + Paper

The role of aberrations in the relative illumination of a lens system

Dmitry Reshidko, Jose Sasian

Proceedings Volume 9948, 994806 (2016) https://doi.org/10.1117/12.2237204

KEYWORDS: Cameras, Aberration theory, Ray tracing, Monochromatic aberrations, Distortion, Objectives, Lens design, Patents, Image quality, Optical components

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Proceedings Article | 17 December 2014 Paper

A multi-aperture imager for a wearable camera

Mamoru Miyawaki, Dmitry Reshidko, Nasser Peyghambarian, Jose Sasián

Proceedings Volume 9293, 92930H (2014) https://doi.org/10.1117/12.2073335

KEYWORDS: Cameras, Sensors, Imaging systems, Image sensors, Image quality, Image resolution, Modulation transfer functions, Semiconducting wafers, Glasses, Manufacturing

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Proceedings Article | 17 December 2014 Paper

Field curvature aberration

José Sasián

Proceedings Volume 9293, 929322 (2014) https://doi.org/10.1117/12.2075938

KEYWORDS: Monochromatic aberrations, Aspheric lenses, Lenses, Lens design, Cell phones, Glasses, Refraction, Optical design, Imaging systems, Aberration correction

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Proceedings Article | 17 December 2014 Paper

Algorithms and examples for chromatic aberration correction and athermalization of complex imaging systems

Dmitry Reshidko, José Sasian

Proceedings Volume 9293, 92931K (2014) https://doi.org/10.1117/12.2072655

KEYWORDS: Chromatic aberrations, Glasses, Ray tracing, Monochromatic aberrations, Lens design, Colorimetry, Spatial frequencies, Optical transfer functions, Imaging systems, Modulation transfer functions

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Proceedings Article | 17 December 2014 Paper

Efficient assessment of lens manufacturability in optical design

Eric Herman, Richard Youngworth, Jose Sasian

Proceedings Volume 9293, 929318 (2014) https://doi.org/10.1117/12.2072553

KEYWORDS: Tolerancing, Lens design, Optics manufacturing, Optical design, Manufacturing, Error analysis, Design for manufacturability, Wavefronts, Electro-optical engineering, Optical components

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Proceedings Article | 18 November 2014 Paper

Multiscale snapshot imaging spectrometer with large FOV and fast speed

Yiqun Ji, Jose Sasian, Yuheng Chen, Jiankang Zhou

Proceedings Volume 9299, 92990G (2014) https://doi.org/10.1117/12.2070927

KEYWORDS: Spectrographs, Spectroscopy, Spherical lenses, Optical design, Imaging systems, Microlens array, Diffraction, Image quality, Microlens, Modulation transfer functions

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Proceedings Article | 5 September 2014 Paper

Past, present, and future of optical design at the College of Optical Sciences

José Sasián

Proceedings Volume 9186, 91860C (2014) https://doi.org/10.1117/12.2064473

KEYWORDS: Optical design, Telescopes, Lens design, Mirrors, Space telescopes, Geometrical optics, Astronomical telescopes, Optical design software, Cameras, Optical fabrication

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Proceedings Article | 23 July 2014 Paper

LSST optical beam simulator

J. A. Tyson, J. Sasian, K. Gilmore, A. Bradshaw, C. Claver, M. Klint, G. Muller, G. Poczulp, E. Resseguie

Proceedings Volume 9154, 915415 (2014) https://doi.org/10.1117/12.2055604

KEYWORDS: Charge-coupled devices, Large Synoptic Survey Telescope, Stars, Point spread functions, Cameras, Optical simulations, Mirrors, CCD cameras, Galactic astronomy, Device simulation

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SPIE Journal Paper | 17 March 2014 Open Access

Polarization fields and wavefronts of two sheets for understanding polarization aberrations in optical imaging systems

José Sasián

OE, Vol. 53, Issue 03, 035102, (March 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.3.035102

KEYWORDS: Polarization, Wavefronts, Optical engineering, Point spread functions, Optical imaging, Imaging systems, Refraction, Ray tracing, Monochromatic aberrations, Reflection

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Proceedings Article | 25 September 2013 Paper

Polarization fields for understanding polarization aberrations in optical imaging systems

José Sasián

Proceedings Volume 8841, 88410C (2013) https://doi.org/10.1117/12.2026788

KEYWORDS: Polarization, Optical imaging, Imaging systems, Spherical lenses, Superposition, Refraction, Matrices, Lens design, Optical engineering, Current controlled current source

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Proceedings Article | 19 September 2013 Paper

Method of calculation and tables of optothermal coefficients and thermal diffusivities for glass

Dmitry Reshidko, José Sasián

Proceedings Volume 8844, 884407 (2013) https://doi.org/10.1117/12.2036112

KEYWORDS: Glasses, Temperature metrology, Lens design, Refraction, Tolerancing, Refractive index, Optical properties, Optical design, Optical components, Thermography

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Proceedings Article | 10 September 2013 Paper

Optomechanical considerations for realistic tolerancing

Eric Herman, José Sasián, Richard Youngworth

Proceedings Volume 8844, 884402 (2013) https://doi.org/10.1117/12.2022804

KEYWORDS: Monte Carlo methods, Tolerancing, Wavefronts, Optical filters, Lens design, Microscopes, Objectives, Optical tolerancing, Error analysis, Optical simulations

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Proceedings Article | 10 September 2013 Paper

Modified point diffraction interferometer to evaluate tolerances in the design of progressive addition lenses

S. Chamadoira, J. Sasian, E. Acosta

Proceedings Volume 8844, 88440D (2013) https://doi.org/10.1117/12.2022680

KEYWORDS: Monochromatic aberrations, Lenses, Point diffraction interferometers, Tolerancing, Point spread functions, Optical properties, Visualization, Astatine, Photovoltaics, Eye

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SPIE Journal Paper | 2 November 2012

Precision focal-length measurement using imaging conjugates

Lin-Yao Liao, Bráulio Fonseca Carneiro de Albuquerque, Robert Parks, José Sasián

OE, Vol. 51, Issue 11, 113604, (November 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.11.113604

KEYWORDS: Interferometers, Precision measurement, Error analysis, Objectives, Distance measurement, Collimation, Light sources, Mirrors, CCD image sensors, Interferometry

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Proceedings Article | 16 September 2011 Paper

A non-linear curvature wavefront sensor reconstruction speed and the broadband design

Mala Mateen, Olivier Guyon, José Sasián, Vincent Garrel, Michael Hart

Proceedings Volume 8149, 814909 (2011) https://doi.org/10.1117/12.894311

KEYWORDS: Wavefront sensors, Colorimetry, Wavefronts, Sensors, Reconstruction algorithms, Wave propagation, Spatial frequencies, Photons, Telescopes, Adaptive optics

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Proceedings Article | 13 September 2011 Paper

A multi-objective approach in the optimization of optical systems taking into account tolerancing

Bráulio F. C. de Albuquerque, Lin-Yao Liao, Amauri Silva Montes, Fabiano Luis de Sousa, José Sasián

Proceedings Volume 8131, 813105 (2011) https://doi.org/10.1117/12.894980

KEYWORDS: Tolerancing, Image quality, Optical design, Lens design, Optimization (mathematics), Evolutionary algorithms, Ray tracing, Evolutionary optimization, Glasses, MATLAB

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SPIE Journal Paper | 1 May 2011

High-speed inline profiler using a modified Fourier transform method for measuring integrated circuit surface profiles

Takeshi Nakazawa, José Sasián, Francy Abraham

OE, Vol. 50, Issue 05, 053603, (May 2011) https://doi.org/10.1117/12.10.1117/1.3574399

KEYWORDS: Fourier transforms, Integrated circuits, Computer simulations, Imaging systems, 3D metrology, Inspection, CCD cameras, Cameras, Projection systems, Optical engineering

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Proceedings Article | 9 September 2010 Paper

Merit figures for fast estimating tolerance sensitivity in lens systems

Lirong Wang, Jose Sasian

Proceedings Volume 7652, 76521P (2010) https://doi.org/10.1117/12.868874

KEYWORDS: Tolerancing, Lens design, Chemical elements, Optical components, Monochromatic aberrations, Microscopes, Objectives, Optical design, Refractive index, Zemax

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Proceedings Article | 9 September 2010 Paper

A low-cost, flexible, high dynamic range test for free-form illumination optics

Lirong Wang, Peng Su, Robert Parks, Roger Angel, Jose Sasian, James Burge

Proceedings Volume 7652, 76521H (2010) https://doi.org/10.1117/12.873980

KEYWORDS: Cameras, Mirrors, Reflectors, Solar concentrators, Headlamps, Optical testing, Aspheric optics, Zemax, High dynamic range imaging, Aspheric lenses

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Proceedings Article | 2 September 2010 Paper

Sixth-order wavefront deformations: the coefficients and insights into wavefront propagation in optical systems

Jose Sasian

Proceedings Volume 7652, 765205 (2010) https://doi.org/10.1117/12.867746

KEYWORDS: Wavefronts, Wave propagation, Optical spheres, Geometrical optics, Light wave propagation, Free space, Radon, Apodization, Imaging systems, Optical design

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Proceedings Article | 26 August 2010 Paper

Conic constant trade-off study in Cassegrain-type telescopes with a field corrector

Jeong-Yeol Han, Jose Sasian, Jesús González

Proceedings Volume 7787, 778702 (2010) https://doi.org/10.1117/12.865608

KEYWORDS: Mirrors, Telescopes, Space telescopes, Chemical elements, Optical instrument design, Solids, Astronomical telescopes, Optical design, Aspheric lenses, Monochromatic aberrations

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Proceedings Article | 22 August 2009 Paper

Depth of field estimation: theory, experiment, and application

Rania Abd El-Maksoud, Lirong Wang, José Sasian, Valorie Valencia

Proceedings Volume 7429, 74290W (2009) https://doi.org/10.1117/12.829593

KEYWORDS: Imaging systems, Modulation transfer functions, Spatial frequencies, Zemax, Diffraction, Sensors, Cameras, Point spread functions, Image resolution, Estimation theory

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Proceedings Article | 22 August 2009 Paper

Illumination scheme for high-contrast contactless fingerprint images

Lirong Wang, Rania Abd El-Maksoud, José Sasian, Valorie Valencia

Proceedings Volume 7429, 742911 (2009) https://doi.org/10.1117/12.828523

KEYWORDS: Polarizers, Light emitting diodes, Sensors, Cameras, Fiber optic illuminators, Blue light emitting diodes, Collimation, Polarization, Eye, Light sources

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Proceedings Article | 22 August 2009 Paper

A novel contactless aliveness-testing (CAT) fingerprint sensor

Lirong Wang, Rania Abd El-Maksoud, Jose Sasian, William Kuhn, Kathleen Gee, Valorie Valencia

Proceedings Volume 7429, 742915 (2009) https://doi.org/10.1117/12.828555

KEYWORDS: Sensors, Computed tomography, Imaging systems, Cameras, Interfaces, Human-machine interfaces, Calibration, Image processing, CCD cameras, Liquid lenses

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Proceedings Article | 22 August 2009 Paper

Paraxial ghost image analysis

Rania Abd El-Maksoud, José Sasian

Proceedings Volume 7428, 742807 (2009) https://doi.org/10.1117/12.828564

KEYWORDS: Ray tracing, Point spread functions, Reflection, Image analysis, Geometrical optics, Stray light, Photography, Chemical elements, Refractive index, Multi-element lenses

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Proceedings Article | 21 August 2009 Paper

Generation of uniform illumination using faceted reflectors

Lirong Wang, José Sasián, Peng Su, R. John Koshel

Proceedings Volume 7423, 74230Y (2009) https://doi.org/10.1117/12.836726

KEYWORDS: Reflectors, Reflector design, Light emitting diodes, Computer aided design, Mirrors, Light, Zemax, Light sources, Aspheric lenses, Off axis mirrors

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Proceedings Article | 29 August 2008 Paper

Optical design of reflective wide-field cameras

Jose Sasian

Proceedings Volume 7060, 70600C (2008) https://doi.org/10.1117/12.798171

KEYWORDS: Mirrors, Cameras, Imaging systems, Reflectivity, Optical design, Confocal microscopy, Monochromatic aberrations, Diffraction, Aspheric lenses, Off axis mirrors

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Proceedings Article | 25 July 2008 Paper

Scanning pentaprism measurements of off-axis aspherics

Peng Su, James Burge, Brian Cuerden, Jose Sasian, Hubert Martin

Proceedings Volume 7018, 70183T (2008) https://doi.org/10.1117/12.789588

KEYWORDS: Mirrors, Prisms, Projection systems, Monochromatic aberrations, Off axis mirrors, Collimation, Error analysis, Sensors, Wavefronts, Interferometry

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SPIE Journal Paper | 1 December 2007

Errata: Evaluation of brilliance, fire, and scintillation in round brilliant gemstones

José Sasián, Jacob Sheffield, James Caudill, Peter Yantzer, Jason Quick

OE, Vol. 46, Issue 12, 129801, (December 2007) https://doi.org/10.1117/12.10.1117/1.2822869

Proceedings Article | 14 September 2007 Paper

Shear test of the off-axis surface with an axis-symmetric parent

Peng Su, James Burge, Jose Sasian

Proceedings Volume 6671, 66710R (2007) https://doi.org/10.1117/12.731971

KEYWORDS: Error analysis, Optical testing, Mirrors, Monochromatic aberrations, Aspheric optics, Interferometers, Aspheric lenses, Zernike polynomials, Analytical research, Signal generators

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SPIE Journal Paper | 1 September 2007

Evaluation of brilliance, fire, and scintillation in round brilliant gemstones

José Sasian, Jason Quick, Jacob Sheffield, James Caudill, Peter Yantzer

OE, Vol. 46, Issue 09, 093604, (September 2007) https://doi.org/10.1117/12.10.1117/1.2769018

KEYWORDS: Scintillation, Refraction, Eye, Ray tracing, Optical engineering, Light sources, Light, Light sources and illumination, Matrices, Diamond

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Proceedings Article | 31 July 2006 Paper

Interpretation of pupil aberrations in imaging systems

Jose Sasian

Proceedings Volume 6342, 634208 (2006) https://doi.org/10.1117/12.692195

KEYWORDS: Monochromatic aberrations, Distortion, Imaging systems, Chromatic aberrations, Wavefronts, Optical design, Kidney, Vignetting, Lens design, Spherical lenses

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Proceedings Article | 12 July 2006 Paper

Maximum likelihood estimation as a general method of combining subaperture data for interferometric testing

Peng Su, Jim Burge, Robert Sprowl, Jose Sasian

Proceedings Volume 6342, 63421X (2006) https://doi.org/10.1117/12.692233

KEYWORDS: Mirrors, Modulation, Error analysis, Interferometry, Interferometers, Calibration, Software development, Aspheric lenses, Optical testing, Analytical research

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Proceedings Article | 6 July 2006 Paper

Manufacture of the second 8.4m primary mirror for the Large Binocular Telescope

H. Martin, R. Allen, B. Cuerden, J. Hill, D. Ketelsen, S. Miller, J. Sasian, M. Tuell, S. Warner

Proceedings Volume 6273, 62730C (2006) https://doi.org/10.1117/12.672454

KEYWORDS: Mirrors, Monochromatic aberrations, Polishing, Telescopes, Surface finishing, Polishing equipment, Interferometers, Actuators, Holograms, Wavefronts

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Proceedings Article | 18 August 2005 Paper

From the landscape lens to the planar lens: a reflection on teaching lens design

Jose Sasian

Proceedings Volume 5865, 58650I (2005) https://doi.org/10.1117/12.624566

KEYWORDS: Monochromatic aberrations, Lens design, Gradient-index optics, Glasses, Photographic lenses, Optical calibration, Distortion, Objectives, Chromatic aberrations, Photography

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SPIE Journal Paper | 1 January 2005

Expert system for generating initial layouts of zoom systems with multiple moving lens groups

Xuemin Cheng, Yongtian Wang, Qun Hao, José Sasián

OE, Vol. 44, Issue 01, 013001, (January 2005) https://doi.org/10.1117/12.10.1117/1.1827609

KEYWORDS: Zoom lenses, Databases, Lens design, Optical engineering, Patents, Cameras, Content addressable memory, Image quality, Video, Gaussian optics

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Proceedings Article | 2 August 2004 Paper

Automatic phase-shifting Ronchi tester with a square Ronchi ruling

Jorge Castro-Ramos, Jose Sasian

Proceedings Volume 5532, (2004) https://doi.org/10.1117/12.558939

KEYWORDS: Wavefronts, Ronchi rulings, Mirrors, Light emitting diodes, Phase shifting, Phase interferometry, Interferometry, CCD cameras, Phase shifts, Interferometers

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SPIE Journal Paper | 1 March 2004

Sag and phase descriptions for null corrector certifiers

Iwona Palusinski, José Sasián

OE, Vol. 43, Issue 03, (March 2004) https://doi.org/10.1117/12.10.1117/1.1645844

KEYWORDS: Aspheric lenses, Computer generated holography, Lens design, Wavefronts, Mirrors, Optical fabrication, Holograms, Ray tracing, Diffraction, Optical engineering

Proceedings Article | 4 February 2003 Paper

Fabrication of mirrors for the Magellan telescopes and the Large Binocular Telescope

Hubert Martin, Richard Allen, James Burge, Lee Dettmann, Dean Ketelsen, Stephen Miller, Jose Sasian

Proceedings Volume 4837, (2003) https://doi.org/10.1117/12.458606

KEYWORDS: Mirrors, Telescopes, Polishing, Surface finishing, Monochromatic aberrations, Actuators, Aspheric lenses, Wavefronts, Optical fabrication, Glasses

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Proceedings Article | 30 January 2003 Paper

Optics for the 20/20 telescope

Hubert Martin, James Roger Angel, James Burge, Stephen Miller, Jose Sasian, Peter Strittmatter

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.459968

KEYWORDS: Mirrors, Telescopes, Polishing, Image segmentation, Aspheric lenses, Off axis mirrors, Wavefronts, Surface finishing, Monochromatic aberrations, Optical alignment

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Proceedings Article | 23 December 2002 Paper

Source modeling and calculation of mask illumination during extreme-ultraviolet lithography condenser design

Lenny Laughlin, Jose Sasian

Proceedings Volume 4832, (2002) https://doi.org/10.1117/12.486464

KEYWORDS: Ray tracing, Apodization, Lithographic illumination, Photomasks, Lithography, Extreme ultraviolet lithography, Reverse modeling, Spherical lenses, Optical design software, Systems modeling

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Proceedings Article | 23 December 2002 Paper

Novel method for precise focal length measurement

Brian DeBoo, Jose Sasian

Proceedings Volume 4832, (2002) https://doi.org/10.1117/12.486480

KEYWORDS: Holograms, Reflectivity, Spherical lenses, Mirrors, Holographic interferometry, Diffraction, Interferometers, Wavefronts, National Ignition Facility, Optical design

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SPIE Journal Paper | 1 November 2002

Null corrector design for white light scatterplate interferometry on a large conic surface

Rex Kremer, Brian DeBoo, Jose Sasian

OE, Vol. 41, Issue 11, (November 2002) https://doi.org/10.1117/12.10.1117/1.1512663

KEYWORDS: Mirrors, Aspheric lenses, Monochromatic aberrations, Code v, Light scattering, Interferometry, Interferometers, Spherical lenses, Lenses, Chromatic aberrations

Proceedings Article | 28 May 2002 Open Access

Trends in teaching lens design

Jose Sasian

Proceedings Volume 4588, (2002) https://doi.org/10.1117/12.468682

KEYWORDS: Lens design, Optics manufacturing, Optical engineering, Tolerancing, Photography, Zoom lenses, Optical design, Aberration theory, Displays, Microscopy

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SPIE Journal Paper | 1 March 2002

Phase theory for multiple aperture systems

Erin Sabatke, Jose Sasian

OE, Vol. 41, Issue 03, (March 2002) https://doi.org/10.1117/12.10.1117/1.1431969

KEYWORDS: Monochromatic aberrations, Distortion, Neodymium, Wavefronts, Telescopes, Aberration theory, Imaging systems, Optical engineering, Mirrors, Geometrical optics

Proceedings Article | 10 December 2001 Paper

Null corrector design for white light scatterplate interferometry on a large conic surface

Rex Kremer, Brian DeBoo, Jose Sasian

Proceedings Volume 4442, (2001) https://doi.org/10.1117/12.449971

KEYWORDS: Mirrors, Aspheric lenses, Interferometry, Monochromatic aberrations, Light scattering, Interferometers, Spherical lenses, Computer generated holography, Lens design, Zemax

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Proceedings Article | 7 September 2001 Paper

Demonstration of a conformal window imaging system: design, fabrication, and testing

Patrick Marushin, Jose Sasian, Tony Lin, John Greivenkamp, Scott Lerner, Barry Robinson, Joel Askinazi

Proceedings Volume 4375, (2001) https://doi.org/10.1117/12.439171

KEYWORDS: Imaging systems, Cameras, Sapphire, Cylindrical lenses, Spherical lenses, Monochromatic aberrations, Optical design, Chemical elements, Mechanical engineering, Fluctuations and noise

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Proceedings Article | 31 October 2000 Paper

Phase theory for multiple aperture systems

Erin Sabatke, Jose Sasian

Proceedings Volume 4091, (2000) https://doi.org/10.1117/12.405773

KEYWORDS: Monochromatic aberrations, Distortion, Wavefronts, Telescopes, Mirrors, Polonium, Aberration theory, Imaging systems, Reflectivity, Off axis mirrors

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Proceedings Article | 2 October 2000 Paper

Novel aspheric surfaces for optical design

Scott Lerner, Jose Sasian

Proceedings Volume 4092, (2000) https://doi.org/10.1117/12.402426

KEYWORDS: Aspheric lenses, Wavefronts, Mirrors, Spherical lenses, Optical design, Optical components, Ray tracing, Refraction, Photovoltaics, Control systems

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Proceedings Article | 5 July 2000 Paper

Second-order phase theory in multiple-aperture systems

Erin Sabatke, Jose Sasian

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390189

KEYWORDS: Wavefronts, Telescopes, Aberration theory, Optical design, Phased array optics, Optical instrument design, Adaptive optics, Phased arrays, Metrology, Time metrology

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SPIE Journal Paper | 1 July 2000

Use of implicitly defined optical surfaces for the design of imaging and illumination systems

Scott Lerner, Jose Sasian

OE, Vol. 39, Issue 07, (July 2000) https://doi.org/10.1117/12.10.1117/1.602559

KEYWORDS: Aspheric lenses, Mirrors, Wavefronts, Reflectors, Imaging systems, Lens design, Telescopes, Space telescopes, Spherical lenses, Optical design

SPIE Journal Paper | 1 March 2000

Design approach and comparison of projection cameras for EUV lithography

Scott Lerner, Jose Sasian, Michael Descour

OE, Vol. 39, Issue 03, (March 2000) https://doi.org/10.1117/12.10.1117/1.602429

KEYWORDS: Mirrors, Cameras, Multilayers, Extreme ultraviolet lithography, Optical coatings, Semiconducting wafers, Aspheric lenses, Photomasks, Wavefronts, Optical engineering

SPIE Journal Paper | 1 December 1999

Rock and roll polishing: a process for optical surface polishing

Jose Sasian, Michael North Morris, Geoffrey Wruck, Gregory Williby, John Greivenkamp

OE, Vol. 38, Issue 12, (December 1999) https://doi.org/10.1117/12.10.1117/1.602316

KEYWORDS: Polishing, Surface finishing, Silica, Lead, Surface roughness, Glasses, Cerium, Oxides, Microscopes, Optics manufacturing

Proceedings Article | 6 September 1999 Paper

Design, tolerancing, and certification of a null corrector to test 8.4-m mirrors

Jose Sasian, Scott Lerner, James Burge, Hubert Martin

Proceedings Volume 3739, (1999) https://doi.org/10.1117/12.360175

KEYWORDS: Mirrors, Tolerancing, Holograms, Aspheric lenses, Relays, Lenses, Diamond, Wavefronts, Manufacturing, Optics manufacturing

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Proceedings Article | 26 July 1999 Paper

Interferometric metrology of conformal domes

Scott Lerner, Jose Sasian, John Greivenkamp, Robert Gappinger, Steve Clark

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354626

KEYWORDS: Wavefronts, Domes, Mirrors, Aspheric lenses, Interferometry, Spherical lenses, Collimation, Metrology, Optical fabrication, Optical design

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Proceedings Article | 26 July 1999 Paper

Variable aberration correction using axially translating phase plates

Thomas Mitchell, Jose Sasian

Proceedings Volume 3705, (1999) https://doi.org/10.1117/12.354625

KEYWORDS: Monochromatic aberrations, Wavefront aberrations, Spherical lenses, Geometrical optics, Domes, Aspheric lenses, Collimation, Code v, Refraction, Aberration correction

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Proceedings Article | 19 July 1999 Paper

Certification of a null corrector via a diamond-turned asphere: design and implementation

Jose Sasian, Scott Lerner, James Burge

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354749

KEYWORDS: Mirrors, Aspheric lenses, Holograms, Diamond, Optical testing, Optical fabrication, Manufacturing, Aspheric optics, Astronomical imaging, Computer generated holography

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Proceedings Article | 25 June 1999 Paper

EUVL projection-camera alignment methods

Michael Descour, Mark Willer, Dana Clarke, Jose Sasian

Proceedings Volume 3676, (1999) https://doi.org/10.1117/12.351141

KEYWORDS: Metrology, Cameras, Distortion, Extreme ultraviolet lithography, Interferometers, Wavefronts, Mirrors, Optical alignment, Semiconducting wafers, Distance measurement

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SPIE Journal Paper | 1 April 1999

Passive pupil correction as applied to annular field systems

Jose Sasian

OE, Vol. 38, Issue 04, (April 1999) https://doi.org/10.1117/12.10.1117/1.602108

KEYWORDS: Cameras, Wavefronts, Monochromatic aberrations, Mirrors, Fluctuations and noise, Optical engineering, Instrumentation engineering, Lens design, Extreme ultraviolet lithography, Optical design

Proceedings Article | 21 September 1998 Paper

Lateral shift variable aberration generators

Iwonka Palusinski, Jose Sasian, John Greivenkamp

Proceedings Volume 3482, (1998) https://doi.org/10.1117/12.321964

KEYWORDS: Monochromatic aberrations, Wavefronts, Aspheric lenses, Imaging systems, Collimation, Aberration correction, Cameras, Distortion, Optical microscopy, Microscopy

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Proceedings Article | 21 September 1998 Paper

New developments in the design of ring-field projection cameras for EUV lithography: passive pupil correction

Jose Sasian

Proceedings Volume 3482, (1998) https://doi.org/10.1117/12.322069

KEYWORDS: Cameras, Monochromatic aberrations, Wavefronts, Extreme ultraviolet lithography, Mirrors, Optical design, Fluctuations and noise, Lens design, Image quality, Packaging

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SPIE Journal Paper | 1 March 1998

Power distribution and symmetry in lens systems

Jose Sasian, Michael Descour

OE, Vol. 37, Issue 03, (March 1998) https://doi.org/10.1117/12.10.1117/1.601933

KEYWORDS: Lens design, Refraction, Optical design, Ray tracing, Computing systems, Cameras, Zoom lenses, Optical engineering, Objectives, Chemical elements

SPIE Journal Paper | 1 December 1997

Annular surfaces in annular field systems

Jose Sasian

OE, Vol. 36, Issue 12, (December 1997) https://doi.org/10.1117/12.10.1117/1.601579

KEYWORDS: Imaging systems, Aspheric lenses, Mirrors, Image quality standards, Optical design, Cameras, Image quality, Lithography, Reflectivity, Superposition

Proceedings Article | 25 September 1997 Paper

Variable spherical aberration generators

Matthew Chang, Jose Sasian

Proceedings Volume 3129, (1997) https://doi.org/10.1117/12.284239

KEYWORDS: Monochromatic aberrations, Zoom lenses, Patents, Microscopes, Lens design, Control systems, Objectives, Refractive index, Optical components, Aberration theory

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SPIE Journal Paper | 1 January 1997

Double-curvature surfaces in mirror system design

Jose Sasian

OE, Vol. 36, Issue 01, (January 1997) https://doi.org/10.1117/12.10.1117/1.601157

KEYWORDS: Mirrors, Monochromatic aberrations, Off axis mirrors, Telescopes, Spherical lenses, Composites, Reflectivity, Aspheric lenses, Surface finishing, Optical instrument design

Proceedings Article | 1 November 1996 Paper

Optical engineering of photonic switching systems

Daniel Reiley, Martin Beckman, Jose Sasian

Proceedings Volume 2863, (1996) https://doi.org/10.1117/12.256244

KEYWORDS: Modulators, Sensors, Switching, Electronics, Distortion, Diffraction, Optoelectronics, CMOS sensors, Telecommunications, Optical engineering

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Proceedings Article | 29 March 1996 Paper

Optomechanical design of a robust free-space optical switching system

Daniel Reiley, Jose Sasian, Martin Beckman

Proceedings Volume 2691, (1996) https://doi.org/10.1117/12.236910

KEYWORDS: Optomechanical design, Optical switching, Switching, Aluminum, Telecommunications, Standards development, Microlens array, Optical interconnects, Modulators, Optical networks

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Proceedings Article | 20 March 1996 Paper

Optoelectronic ATM switch employing hybrid silicon CMOS/GaAs FET-SEEDs

Anthony Lentine, Daniel Reiley, Robert Novotny, Rick Morrison, Jose Sasian, Martin Beckman, D. Buchholz, Stephen Hinterlong, Thomas Cloonan, Gaylord Richards, Frederick McCormick

Proceedings Volume 2692, (1996) https://doi.org/10.1117/12.235841

KEYWORDS: Switching, Switches, Asynchronous transfer mode, Networks, Network architectures, Optoelectronics, Objectives, Silicon, Modulators, Telecommunications

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In the past few years, the demand for telecommunications services beyond voice telephony has skyrocketed. For the growth of these services to continue at this rate, cost effective means of transporting and switching large amounts of information must be found. Although fiber optic transmission has significantly reduced the cost of transmission, switching high bandwidth signals remains expensive. While all electronic switching systems are certainly possible for these high bandwidth systems, considerable effort has been expended to reduce the cost of fiber optic connections between frames or racks of equipment separated by several meters. As an example, one can envision fiber-optic data links connecting the line units that receive and transmit data from the outside world with an electronic switching fabric. Optical data links, ODLs, can perform the optical to electrical conversions. Several of these optical data links can be electrically connected with electronic switching chips on a printed circuit board. As the demand for bandwidth increases, several hundred to several thousand optical fibers might be incident on the switching fabric. Discrete optical data links and parallel data links with up to 32 fibers per data link remain an expensive solution to transporting this information due to their per-link cost, physical size, and power dissipation. Power dissipation on the switching chips is high because of the need for electronic drivers for the high speed electrical interconnections between the switching chips and the data links. By integrating the O/E conversions directly onto the switching chips, lower cost and higher density systems can be built. In this paper, we describe preliminary results of an experimental optoelectronic switching network based on this lower cost solution. The network is designed to be part of an asynchronous transfer mode (ATM) network based on the Growable Packet Architecture. The switching chip consists of GaAs/AlGaAs multiple quantum well modulators and detectors flip- chip bonded to silicon VLSI circuitry. The optical system images the inputs from a two dimensional fiber bundle onto the switching chip, provides optical fan-out of the signals from the fibers to the switching chip, and images the outputs from the chip onto the fiber bundle.

SPIE Journal Paper | 1 February 1995

Simple technique for out-of-focus feature alignment

Jose Sasian, Douglas Baillie

OE, Vol. 34, Issue 02, (February 1995) https://doi.org/10.1117/12.10.1117/12.194047

KEYWORDS: Optical alignment, Microscopes, Feature extraction, Microlens array, Switching, Interfaces, Geometrical optics, Optical computing, Microlens, Optical instrument design

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SPIE Journal Paper | 1 September 1994

Fabrication of fiber bundle arrays for free-space photonic switching systems

Jose Sasian, Robert Novotny, Martin Beckman, Sonya Walker, Michael Wojcik, Stephen Hinterlong

OE, Vol. 33, Issue 09, (September 1994) https://doi.org/10.1117/12.10.1117/12.177505

KEYWORDS: Ultraviolet radiation, Cements, Optical fibers, Single mode fibers, Switching, Multimode fibers, Manufacturing, Microscopes, Optical computing, Cameras

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SPIE Journal Paper | 1 June 1994

How to approach the design of a bilateral symmetric optical system

Jose Sasian

OE, Vol. 33, Issue 06, (June 1994) https://doi.org/10.1117/12.10.1117/12.169736

KEYWORDS: Monochromatic aberrations, Distortion, Spherical lenses, Imaging systems, Wavefronts, Aspheric lenses, Mirrors, Colorimetry, Polishing, Surface finishing

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SPIE Journal Paper | 1 August 1993

Design, assembly, and testing of an objective lens for a free-space photonic switching system

Jose Sasian, Frederick McCormick, Robert Webb, Randall Crisci, Keith Mersereau, Robert Stawicki

OE, Vol. 32, Issue 08, (August 1993) https://doi.org/10.1117/12.10.1117/12.147150

KEYWORDS: Objectives, Monochromatic aberrations, Tolerancing, Manufacturing, Lens design, Switching, Distortion, Glasses, Wavefronts, Photonics systems

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SPIE Journal Paper | 1 December 1992

Design and tolerancing comparisons for S-SEED-based free-space switching fabrics

Frederick McCormick, Frank Tooley, John Brubaker, Jose Sasian, Thomas Cloonan, Anthony Lentine, Rick Morrison, Randall Crisci, Sonya Walker, Stephen Hinterlong, Michael Herron

OE, Vol. 31, Issue 12, (December 1992) https://doi.org/10.1117/12.10.1117/12.60020

KEYWORDS: Switching, Tolerancing, Objectives, Relays, Clocks, Mirrors, Free space optics, Optical alignment, Beam splitters, Semiconductor lasers

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Proceedings Article | 20 October 1992 Paper

Fabrication and testing issues in free-space digital optical switching and computing (Invited Paper)

Frederick McCormick, Jose Sasian, Randall Crisci, Rick Morrison, Frank Tooley, Esther Kerbis, Sonya Walker

Proceedings Volume 1720, (1992) https://doi.org/10.1117/12.132166

KEYWORDS: Switching, Tolerancing, Lenses, Clocks, Beam splitters, Laser optics, Wave plates, Optical fabrication, Imaging systems, Optical testing

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SPIE Journal Paper | 1 March 1992

Image plane tilt in optical systems

Jose Sasian

OE, Vol. 31, Issue 03, (March 1992) https://doi.org/10.1117/12.10.1117/12.56085

KEYWORDS: Geometrical optics, Distortion, Imaging systems, Systems modeling, Monochromatic aberrations, Mirrors, Prisms, Image understanding, Refraction, Spherical lenses

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Proceedings Article | 1 December 1991 Paper

Optomechanics of a free-space photonic switching fabric: the system

Frederick McCormick, Frank Tooley, John Brubaker, Jose Sasian, Thomas Cloonan, Anthony Lentine, Rick Morrison, Randall Crisci, Sonya Walker, Stephen Hinterlong, Michael Herron

Proceedings Volume 1533, (1991) https://doi.org/10.1117/12.48846

KEYWORDS: Switching, Tolerancing, Optomechanical design, Objectives, Relays, Clocks, Mirrors, Beam splitters, Optical alignment, Free space optics

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Proceedings Article | 1 December 1991 Paper

Image plane tilt in optical systems

Jose Sasian

Proceedings Volume 1527, (1991) https://doi.org/10.1117/12.48640

KEYWORDS: Distortion, Geometrical optics, Monochromatic aberrations, Optical design, Optical engineering, Systems modeling, Imaging systems, Mirrors, Prisms, Spherical lenses

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Proceedings Article | 1 December 1991 Paper

Optomechanics of a free-space photonic switch: the components

John Brubaker, Frederick McCormick, Frank Tooley, Jose Sasian, Thomas Cloonan, Anthony Lentine, Stephen Hinterlong, Michael Herron

Proceedings Volume 1533, (1991) https://doi.org/10.1117/12.48845

KEYWORDS: Optomechanical design, Free space, Optical design, Aluminum, Switches, Optical switching, Computer aided design, Switching, Free space optics, Optical arrays

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Proceedings Article | 1 March 1991 Paper

Review of methods for the design of unsymmetrical optical systems

Jose Sasian

Proceedings Volume 1396, (1991) https://doi.org/10.1117/12.25846

KEYWORDS: Optical design, Mirrors, Monochromatic aberrations, Optical engineering, Imaging systems, Optical components, Telescopes, Wavefronts, Lenses, Geometrical optics

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SPIE Journal Paper | 1 October 1990

Four-mirror optical system for large telescopes

Jose Sasian

OE, Vol. 29, Issue 10, (October 1990) https://doi.org/10.1117/12.10.1117/12.55714

KEYWORDS: Mirrors, Spherical lenses, Large telescopes, Wavefronts, Monochromatic aberrations, Aspheric lenses, Chemical elements, Telescopes, Aspheric optics, Imaging systems

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SPIE Journal Paper | 1 January 1990

Design of a Schwarzschild flat-field, anastigmatic, unobstructed, wide-field telescope

Jose Sasian

OE, Vol. 29, Issue 01, (January 1990) https://doi.org/10.1117/12.10.1117/12.55563

KEYWORDS: Mirrors, Monochromatic aberrations, Telescopes, Distortion, Optical instrument design, Geometrical optics, Image quality, Image processing, Optical fabrication, Optical design

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Showing 5 of 113 publications

Proceedings Volume Editor (32)

SPIE Conference Volume | 4 October 2024

Optical System Alignment, Tolerancing, and Verification XV

SPIE Conference Volume | 13 October 2023

Optomechanical Engineering 2023

SPIE Conference Volume | 6 October 2022

Optical System Alignment, Tolerancing, and Verification XIV

SPIE Conference Volume | 20 August 2021

Optomechanics and Optical Alignment

SPIE Conference Volume | 15 September 2020

Optical System Alignment, Tolerancing, and Verification XIII

Showing 5 of 32 publications

Conference Committee Involvement (71)

Optical System Alignment, Tolerancing, and Verification XVI

3 August 2025 | San Diego, California, United States

Novel Optical Systems, Methods, and Applications XXVII

19 August 2024 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification XV

18 August 2024 | San Diego, California, United States

Optomechanical Engineering 2023

23 August 2023 | San Diego, California, United States

Novel Optical Systems, Methods, and Applications XXVI

22 August 2023 | San Diego, California, United States

Novel Optical Systems, Methods, and Applications XXV

22 August 2022 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification XIV

21 August 2022 | San Diego, California, United States

Novel Optical Systems, Methods, and Applications XXIV

4 August 2021 | San Diego, California, United States

Optomechanics and Optical Alignment

1 August 2021 | San Diego, California, United States

International Optical Design Conference 2021

27 June 2021 | Online Only, United States

Novel Optical Systems, Methods, and Applications XXIII

24 August 2020 | Online Only, California, United States

Optical System Alignment, Tolerancing, and Verification XIII

24 August 2020 | Online Only, California, United States

Roland V. Shack Memorial Session: A Celebration of One of the Great Teachers of Optical Aberration Theory

24 August 2020 | Online Only, California, United States

Novel Optical Systems, Methods, and Applications XXII

13 August 2019 | San Diego, California, United States

Optical Modeling and System Alignment

12 August 2019 | San Diego, California, United States

Novel Optical Systems Design and Optimization XXI

21 August 2018 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification XII

19 August 2018 | San Diego, California, United States

Novel Optical Systems Design and Optimization XX

9 August 2017 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification XI

6 August 2017 | San Diego, California, United States

Optical Design and Testing VII

12 October 2016 | Beijing, China

Novel Optical Systems Design and Optimization XIX

29 August 2016 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification X

28 August 2016 | San Diego, California, United States

Novel Optical Systems Design and Optimization XVIII

12 August 2015 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification IX

9 August 2015 | San Diego, California, United States

Optical Design and Testing VI

9 October 2014 | Beijing, China

Optics Education and Outreach III

19 August 2014 | San Diego, California, United States

Novel Optical Systems Design and Optimization XVII

17 August 2014 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification VIII

17 August 2014 | San Diego, California, United States

Novel Optical Systems Design and Optimization XVI

27 August 2013 | San Diego, California, United States

Laser Beam Shaping XIV

26 August 2013 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification VII

25 August 2013 | San Diego, California, United States

Optical Design and Testing V

5 November 2012 | Beijing, China

Novel Optical Systems Design and Optimization XV

15 August 2012 | San Diego, California, United States

Laser Beam Shaping XIII

13 August 2012 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification VI

12 August 2012 | San Diego, California, United States

Optics Education and Outreach II

12 August 2012 | San Diego, California, United States

Novel Optical Systems Design and Optimization XIV

22 August 2011 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification V

21 August 2011 | San Diego, California, United States

Laser Beam Shaping XII

21 August 2011 | San Diego, California, United States

Optical Design and Testing IV

18 October 2010 | Beijing, China

Novel Optical Systems Design and Optimization XIII

3 August 2010 | San Diego, California, United States

Laser Beam Shaping XI

2 August 2010 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification IV

1 August 2010 | San Diego, California, United States

5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipments

26 April 2010 | Dalian, China

Novel Optical Systems Design and Optimization XII

3 August 2009 | San Diego, California, United States

Laser Beam Shaping X

3 August 2009 | San Diego, California, United States

Optical System Alignment, Tolerancing, and Verification III

2 August 2009 | San Diego, California, United States

Novel Optical Systems Design and Optimization XI

13 August 2008 | San Diego, California, United States

Laser Beam Shaping IX

11 August 2008 | San Diego, California, United States

Optical System Alignment and Tolerancing II

10 August 2008 | San Diego, California, United States

Laser Beam Shaping VIII

28 August 2007 | San Diego, California, United States

Novel Optical Systems Design and Optimization X

28 August 2007 | San Diego, California, United States

Optical System Alignment and Tolerancing

26 August 2007 | San Diego, California, United States

Novel Optical Systems Design and Optimization IX

15 August 2006 | San Diego, California, United States

Laser Beam Shaping VII

13 August 2006 | San Diego, California, United States

Laser Beam Shaping VI

1 August 2005 | San Diego, California, United States

Novel Optical Systems Design and Optimization VIII

31 July 2005 | San Diego, California, United States

Optical Design and Testing II

8 November 2004 | Beijing, China

Laser Beam Shaping V

5 August 2004 | Denver, Colorado, United States

Novel Optical Systems Design and Optimization VII

2 August 2004 | Denver, Colorado, United States

Optomechanics 2003

7 August 2003 | San Diego, California, United States

Laser Beam Shaping IV

6 August 2003 | San Diego, California, United States

Novel Optical Systems Design and Optimization VI

4 August 2003 | San Diego, California, United States

Optical Design and Testing

15 October 2002 | Shanghai, China

Novel Optical Systems Design and Optimization V

9 July 2002 | Seattle, WA, United States

International Optical Design Conference 2002

3 June 2002 | Tucson, AZ, United States

International Optical Design Conference 2002

3 June 2002 | Tucson, United States

Novel Optical Systems Design and Optimization IV

1 August 2001 | San Diego, CA, United States

Novel Optical Systems Design and Optimization III

1 August 2000 | San Diego, CA, United States

Novel Optical Systems and Large-Aperture Imaging

21 July 1998 | San Diego, CA, United States

Novel Optical Systems Design and Optimization

10 July 1995 | San Diego, CA, United States

Showing 5 of 71 Conference Committees

Course Instructor

SC1272: Mirror System Design with Freeform Surfaces

This course provides a primer in mirror system design using freeform surfaces. The course will be of interest to those engineers working with imaging systems which require the use of mirrors as lens systems may not be appropriate. A review of wave aberrations will be given, then a systematic methodology to design unobscured mirror systems will be presented, and a number of examples will be discussed. Ad-hoc freeform surfaces will be explained. The attendees should expect to obtain useful and practical knowledge in mirror system design. Some familiarity with optical design is required.

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