Short Courses SC705-07

Media: DVD: 4 Discs

Individual Use
SC705-07-U
$600 USD

Site License
SC705-07-L
S3000 USD

Number: SC705-07

Time: 6 hours 20 minutes

Title: Exploring Optical Aberrations ©

Instructor: Dr. Virendra Mahajan

Overview

The quality of an optical system is determined by its aberrations. This course will explore the effect of aberrations on image quality. Starting with the Airy pattern, we explore the basic aberrations of optical systems and discuss how they affect central irradiance on a target, energy on a detector, and line of sight of a system. The importance of the use of Zernike polynomials in optical testing and design, spot diagrams in optical system analysis, and Strehl ratio for aberration tolerance will be covered. The effect of random image motion and random aberrations as in atmospheric turbulence, and imaging with annular and Gaussian pupils are also discussed.

Intended Audience

This course is intended for anyone interested in acquiring a working knowledge of aberrations. Those who have a background in lens and optical system design or optical testing will benefit from this course. Moreover, managers and system engineers will find this course helpful in communicating effectively with optical engineers and designers.

Learning Objectives

This course will enable the attendees to:

Acquire a working knowledge of aberrations and their effect on energy on detector, line of sight error, and MTF.
Determine aberration tolerance based on Strehl ratio and Rayleigh’s quarter wave rule.
Specify fabrication and assembly errors based on a certain aberration tolerance.
Understand the significance and use of the Zernike polynomials in optical design and testing.
Develop effective working interface between system engineers/engineering managers and optical designers

Course Outline

Aberration-Free Image with Circular Pupils

Airy pattern, encircled and ensquared powers

Ray Geometrical Image

Wave and ray aberrations
Defocus and tilt aberrations
Primary aberrations
Effect of stop shift
Spot size for primary aberrations
Depth of focus
Aberration balancing
Golden rule of optical design
Interferograms for primary aberrations
Chromatic aberrations
Imaging by a thin lens
Imaging by an achromatic doublet

Wave Diffraction Image

Effect of aberrations on the Airy pattern
Strehl ratio and aberration tolerance
Rayleigh’s quarter wave rule
Aberration balancing
Fabrication error and tolerance
Zernike circle polynomials
Seidel coefficients in optical testing
Beam focusing and depth of focus
Photographic camera
Laser transmitter
Axial irradiance of an aberrated beam
PSFs for primary aberrations
PSF approximated by a Gaussian
Line of sight of an aberrated system
Optical transfer function
Contrast reversal
Hopkins ratio and aberration tolerance

Imaging with Annular Pupils

Aberration-free PSF
Encircled and ensquared powers
Primary aberrations and aberration balancing
Zernike annular polynomials
Aberrated PSFs
Line of sight

Deterministic and Random Aberrations

Random image motion
Transverse image motion
Longitudinal image motion
Imaging through atmospheric turbulence

Imaging with Gaussian Pupils

PSF and OTF
Primary aberrations and aberration balancing
Zernike-Gauss polynomials
Strehl ratio
Line of sight

Wavefront Analysis in Optical Design

Systems with noncircular pupils

Contact:

Ms. Cindy Robertson

520-626-4719

cindyr@optics.arizona.edu

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