An exact ray‐tracing method has been developed by combining some ideas of Herzberger with the matrix approach to geometrical optics. This method, which can be implemented on a programmable pocket calculator, applies to any conic surface, including paraboloids, spheres, and planes (both refracting and reflecting) as examples. For the aspheric elements, in particular, this method is exact; iterative procedures are unnecessary.
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© 1979 American Association of Physics Teachers.
1979
American Association of Physics Teachers
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