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Analytic design method for optimal imaging: coupling three ray sets using two free-form lens profiles

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Academic year: 2020

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Figure

Fig. 1. Impact of increasing design angles and lens thicknesses on the relative importance of the initial segment
Fig. 2. Shown steps of the design concept illustrate how to make use of symmetry about the optical axis to couple an additional on-axis ray set
Fig. 3. Algorithmic implementation: shown figures (a)-(e) explain the design steps towards the final lens profiles shown in (f)
Fig. 4. Introduction of all necessary initial values and functions to derive the conditional equations from Fermat’s principle
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