Prof. Alson E. Hatheway
DECEASED at Alson E Hatheway Inc
SPIE Involvement:
Author | Editor | Instructor | Visiting Lecturer
Publications (46)

SPIE Journal Paper | 17 May 2018
OE Vol. 57 Issue 05
KEYWORDS: Glasses, Lenses, Solids, Contact lenses, Metals, Optical engineering, Optical spheres, Differential equations, Lens design, Surface finishing

Proceedings Article | 23 August 2017 Presentation + Paper
Proc. SPIE. 10371, Optomechanical Engineering 2017
KEYWORDS: Diffraction gratings, Diffraction

SPIE Press Book | 22 June 2016
KEYWORDS: Sensors, Optical components, Mirrors, Imaging systems, Optical design, Mechanical engineering, Refraction, Image registration, Geometrical optics, Lens design

Proceedings Article | 23 September 2015 Paper
Proc. SPIE. 9577, Optical Modeling and Performance Predictions VII
KEYWORDS: Imaging systems, Optical components, Motion models, Sensors, Infrared imaging, Image sensors, Mechanical engineering, Solid modeling, Computer aided design, Finite element methods

Proceedings Article | 2 September 2015 Paper
Proc. SPIE. 9573, Optomechanical Engineering 2015
KEYWORDS: Optical components, Motion models, Computer programming, Sensors, Fiber optics, Image sensors, Mirrors, Temperature metrology, Mechanical engineering, Finite element methods

Showing 5 of 46 publications
Proceedings Volume Editor (17)

SPIE Conference Volume | 27 December 2017

SPIE Conference Volume | 11 September 2015

SPIE Conference Volume | 25 September 2013

SPIE Conference Volume | 22 September 2011

SPIE Conference Volume | 10 September 2009

Showing 5 of 17 publications
Conference Committee Involvement (30)
Optical Modeling and Performance Predictions X
22 August 2018 | San Diego, California, United States
Optomechanical Engineering 2017
9 August 2017 | San Diego, California, United States
Optical Modeling and Performance Predictions IX
8 August 2017 | San Diego, California, United States
Optical Modeling and Performance Predictions VIII
1 September 2016 | San Diego, California, United States
Optomechanical Engineering 2015
11 August 2015 | San Diego, California, United States
Showing 5 of 30 Conference Committees
Course Instructor
SC781: Optomechanical Analysis
This course teaches the basic requirements for accurately predicting the influences of thermal, structural and servo system designs on the performance and quality of optical imaging systems. It is based upon the instructor's forty years' experience in designing, analyzing and building complex optical systems, especially for the Federal market place. It incorporates elements from some of his earlier tutorials, "Finite Element Methods in Optics," "Optical Flexures" and "Optomechanics and the Tolerancing of Instruments." The instructor will review the goals of "Integrated Analysis" as promoted by NASA and DoD since the early 90's. Strengths and weakness of various approaches will be discussed. Special optomechanical modeling tools (the Optomechanical Constraint Equations and the Optical Analog) will be presented in some detail. Analytical error functions will be developed and evaluated. Sources of analytical error will be discussed and analyzed. Analytical error budgets will be developed and compared for various approaches to end-to-end analysis of systems. A candidate strategy will be presented for consideration. The course will be illuminated with both text book-type problems and actual examples of applications from the instructor's experiences. The students will learn the strengths and weakness of the analytical methods in the various disciplines, how to estimate the sources and magnitudes of errors in various approaches to analysis, how to put together an error budget for a proposed analytical effort and how to select the most appropriate methods for end-to-end system analysis.
SC221: Optomechanics and Tolerancing of Instruments
This course teaches mechanical engineers and designers how to identify and evaluate the features in a mechanical design that may contribute to image motion (registration errors) at the detector. Registration errors may cause an otherwise sharp image to appear blurred (focusing error) and for even sharp images to be in the wrong place (tracking error). Registration errors are controlled by the optomechanical constraint equations that relate all the motions of all the elements in a system to the position, orientation and size of the image at the detector. The students are taught to develop the optomechanical constraint equations from the optical imaging laws and to use them to specify alignment requirements, calculate thermal sensitivity and distribute dimensional tolerances in optical metering structure.
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