Abstract
We provide an overview of the method of confocal mirror design and report advances with respect to pupil imagery. Two real ray-based conditions, Y+ = - Y- and ΔY = 0, for the absence of linear astigmatism and field tilt are presented. One example illustrates the design of a system confocal of the object and image, and another illustrates the design of a system confocal of the pupils. Stop shifting formulas are provided. Three three-mirror anastigmatic systems further illustrate the method.
Original language | English (US) |
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Article number | 015101 |
Journal | Optical Engineering |
Volume | 58 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2019 |
Externally published | Yes |
Keywords
- confocal imaging
- field tilt
- freeform surfaces
- linear astigmatism
- plane symmetry
- pupil aberrations
- three-mirror anastigmatic systems
- unsymmetrical systems
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- General Engineering