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  • Print publication year: 2019
  • Online publication date: September 2019

2 - Classical Imaging, First-Order Imaging, and Imaging Aberrations


This chapter provides a brief overview of essential imaging concepts used in lens design. Whether classical imaging, which is congruent with first-order optics, is required in a lens system, or any other type of imaging, depends on system application. Therefore, a clear understanding of what imaging is and of departures from such imaging, called aberrations, is essential for a lens design practice.

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Greivenkamp, J. Field Guide to Geometrical Optics (Bellingham, WA: SPIE Press, 2004).
Sasián, J. Introduction to Aberrations in Optical Imaging Systems (Cambridge, UK: Cambridge University Press, 2013).