1 April 1985 Nonreversible Mirrors Equivalent To Saddle Mirrors
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A saddle mirror is a toroidal mirror with the principal curvatures of opposite sign. The mirror can form images of objects without reversing them. This means that a right-handed object can be imaged into a right-handed image that is erect. However, the saddle mirror is not easy to construct accurately. It is possible to devise some equivalent mirrors that have either cylindrical or plane surfaces for the special situation when one is interested in an image that is also free from anamorphic magnification difference. A few such optical devices are presented in this paper.
M. V.R.K. Murty, M. V.R.K. Murty, } "Nonreversible Mirrors Equivalent To Saddle Mirrors," Optical Engineering 24(2), 242329 (1 April 1985). https://doi.org/10.1117/12.7973478 . Submission:

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