Abstract

This chapter will introduce you to the astronomical eyepiece—its historical beginnings, basic function, physical construction, optical construction, and optical design characteristics. You will also gain a deeper understanding of some of the more technical aspects of eyepiece performance parameters related to focal length, apparent field of view, eye relief, exit pupil, stray light control, and optical aberrations.KeywordsFocal LengthSpherical AberrationChromatic AberrationStar PointField CurvatureThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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