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The tables give all the information needed for the construction of cemented aplanatic lenses made of only two refracting media, when the object is at infinity and when the image is equal in size to the object. In the former case two series of unsymmetrical doublets are specified, and in the latter two series of symmetrical triplets. The refractive indices range from 1.33333 to 2.00000 and the intervals are small enough for interpolation.
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Brown et al. (1946) studied this question.
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