14 February 2011 Manufacturing of cylindrical diffractive lens by ruling
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A Moore 350FG 5-axis ultra precision machine tool platform with diamond tooling was used to generate 10 mm x 10 mm cylindrical diffractive lens on electroless nickel insert. An electroless nickel insert was machined by diamond turning and a diffractive collimating lens was cut by ruling with a sharp diamond tool. The path from optical designing to machining of the lens was proven. Selection of the tool type, stability of the cutting process and tool path programming play an important role in the outcome of the lens. This method will produce high quality diffractive lenses for further replication processes although great care must be taken in controlling the machining process stability.
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J. Väyrynen, J. Väyrynen, T. Saastamoinen, T. Saastamoinen, J. Mutanen, J. Mutanen, P. Pääkkönen, P. Pääkkönen, K. Mönkkönen, K. Mönkkönen, M. Kuittinen, M. Kuittinen, } "Manufacturing of cylindrical diffractive lens by ruling", Proc. SPIE 7927, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics IV, 79270M (14 February 2011); doi: 10.1117/12.872858; https://doi.org/10.1117/12.872858

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