This short video covers the Petzval contribution to 3rd order field curvature and gives an example which includes the use of a single-glass field flattener.

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I make a lot of videos showing spreadsheets and MatLab code that are useful for optical design. The purpose is to help people who wish to make their own spreadsheets, or to write their own code. Please don't ask me to post my own files. Write your own. That's the idea.

Introduction to the paraxial ray trace equations    • Paraxial Ray Trace Equations and Buil...  
Chromatic aberration    • Chromatic Aberration: Calculating the...  

A very thorough guide for YNU spreadsheeting, and an important resource to help you work through your own spreadsheet, is the "Pencil of Rays" website https://www.pencilofrays.com/lens-des...

My favorite book reference for this is Introduction to Lens Design With Practical Zemax Examples by Joseph M. Geary.

Reference: Joseph M. Geary, Introduction to Lens Design: with Practical ZEMAX(R) Examples, (Willmann-Bell, Inc., 2002), Chapter 14.

Optical Design Playlist:    • Optics and Optical Design  

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