Figure 10
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Example of an achromat designed with the Saddle Point Construction and a reduced glass map for an object field of 2.5° and spot size comparison with a Thorlabs achromatic cemented doublet. (a) 2D Lens drawing of the system. (b) Spot Diagram of the system with Airy disk at reference wavelength displayed. (c) Spot diagram of the Thorlabs AC254-100-A achromatic cemented doublet.
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