Abstract
Freeform imaging systems are a subject of current interest. To aid in the design of such systems, we introduce structural aberration coefficients for plane symmetric imaging with XY-polynomial freeform surfaces that may also be tilted. Further, we extend the coefficients to systems with an arbitrary number of components and specifically provide analytical equations for two-mirror systems. Distinguishing between system configuration and structural parameters enhances clarity, which we highlight by deriving new conditions for minimum root-mean-square (RMS) spot size and minimum RMS wavefront error in aplanatic two-mirror telescopes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 35104 |
| Number of pages | 1 |
| Journal | Optical Engineering |
| Volume | 62 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 2023 |
Keywords
- aberration theory
- freeform imaging
- freeform optics
- lens design
- optical design
- structural coefficients
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Engineering