Published online by Cambridge University Press: 23 September 2019
An optical engineer is not only concerned with the design of a single lens system, but also in combining several lens systems. An optical system may comprise several individual lens systems. These lens systems must be combined to meet the overall optical system specifications. Often each lens system serves to relay an image or a pupil of the previous system to a new location. In combining lens systems, several effects can take place due to image and/or pupil aberrations. Being aware of such effects is key to design, analyze, or debug a combination of lens systems. For example, a telescope can be considered as the combination of an objective lens, an image erecting system, an eyepiece, and the human eye. To properly form an image on the eye’s retina, these subsystems must be properly combined. In this chapter we discuss combining lens systems, pupil aberrations, and optical relays.
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