Introduction to Aberrations (3 units). Advanced first-order tools; chromatic aberrations; monochromatic aberrations; sources of aberration; computation; simple systems. Prerequisite: OPTI 502.

Meeting Times:
Lectures: T/Th 11:00-12:15

Lectures:

• Two 75-minute lectures per week, T/TH
• Class Notes will be used

Advanced First-Order Tools (4)

• Matrix methods.
• The y, ybar diagram.

Chromatic Aberrations (2)

• Chromatic aberrations as variations in first-order properties.
• Application of the y,ybar diagram to systems of two lenses.

What are Aberrations? (13)

• Wave aberrations: definitions and parameters; classification and description.
• Transverse ray aberrations; relation to wave aberrations; vector description; ray fans.
• Change of reference sphere; zonal diagrams; spot diagrams; caustics.
• Distortion and field curvature.
• Astigmatism.
• Coma.
• Spherical aberration.
• Interferometric representation.
• Aberrated spread functions.
• Aberrated transfer functions.
• Combined aberrations.

Where Do Aberrations Come From? (3)

• Petzval curvature.
• Spherical aberration.
• Field-dependent aberrations.

How Do We Calculate Them? (2)

• Seidel coefficients; stop shift; special surfaces; special systems.
• Structural aberrartion coefficients.

Simple Systems (5)

• The simple thin lens.
• Single mirrors; aspherics; corrector plates.
• Thin lenses in contact; the achromatic doublet.
• Compound lens systems; the Lister objective; the dyalite; the triplet.
• Compound mirror systems.