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Design of High-Performance Optical Systems

University of Colorado Boulder via Coursera

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  • Provider Coursera
  • Subject Engineering
  • $ Cost Free Online Course (Audit)
  • Session In progress
  • Language English
  • Certificate Paid Certificate Available
  • Effort 4-6 hours a week
  • Start Date
  • Duration 6 weeks long

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Overview

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Optical instruments are how we see the world, from corrective eyewear to medical endoscopes to cell phone cameras to orbiting telescopes. This course extends what you have learned about first-order, paraxial system design and optical resolution and efficiency with the introduction to real lenses and their imperfections. We begin with a description of how different wavelengths propagate through systems, then move on to aberrations that appear with high angle, non-paraxial systems and how to correct for those problems. The course wraps up with a discussion of optical components beyond lenses and an excellent example of a high-performance optical system – the human eye. The mathematical tools required for analysis of high-performance systems are complicated enough that this course will rely more heavily on OpticStudio by Zemax. This will allow students to analyze systems that are too complicated for the simple analysis thus far introduced in this set of courses.

Syllabus

WEEK 1

Chromatic Aberrations

We now move away from the first order approximations and into real lenses and imperfect optical systems. We begin with a description of how different wavelengths propagate through systems.

 

WEEK 2

Ray Aberrations

This module introduces the many types and causes of monochromatic imperfections in optical systems. We begin with the mathematical background of the causes of aberrations, then introduce a number of common aberrations so that you may recognize them in your own systems.

 

WEEK 3

Field Curvature and Distortion

This module continues to discuss monochromatic imperfections in optical systems. We introduce field curvature and distortion so that you may recognize them in your own systems and then summarize the causes and effects of 3rd order aberrations along with the mathematical tools to describe them.

 

WEEK 4

Techniques for Reduction of Aberrations

The previous three modules have discussed the various types of aberrations you will find in your optical systems. We now move to how to design a system that limits those aberrations.

 

WEEK 5

Optical Components

In this last module before the capstone, we change gears from aberrations, and discuss a number of other optical elements that are usual in systems other than lenses. We cover light shaping with prisms, GRIN lenses, diffractive optics such as diffraction gratings and Fresnel lenses. Then we finish with an important optical element to all of us - the human eye. This module covers a lot of material and may take you a bit longer than the others.

 

WEEK 6

Capstone

This module will allow you to apply what you have learned in the course in the context of an open-ended design problem. Like an actual engineering problem, only the specifications will be given - the details are up to you. You will likely find that getting started is difficult, particularly choosing parameters subject to multiple constraints. This is the art of design and is one of the joys and frustrations of being an optical engineer.In this project, you will design a hyperspectral imager.

 

Taught by

Robert McLeod and Amy Sullivan

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