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Freeform surface descriptions. Part I: Mathematical representations

: Broemel, A.; Lippmann, U.; Gross, H.


Advanced Optical Technologies 6 (2017), Nr.5, S.327-336
ISSN: 2192-8584
ISSN: 2192-8576
Fraunhofer IOF ()

Optical systems can benefit strongly from freeform surfaces; however, the choice of the right surface representation is not trivial and many aspects must be considered. In this work, we discuss the general approach classical globally defined representations, as well as the basic mathematics and properties of the most commonly used descriptions and present a new description developed by us for describing freeform surfaces.