Design and manufacture of micro-optical arrays using 3D diamond machining techniques

Details Design and manufacture of micro-optical arrays using 3D diamond machining techniques Design and manufacture of micro-optical arrays using 3D diamond machining techniques

2006-06-07

arxiv.org/abs/astro-ph/0606145v1

Astronomy and Astrophysics

Astrophysics

8 pages, 11 figures. Copyright 2006 Society of Photo-Optical Engineers. This paper will be published in SPIE Conf. Series 6273

Scientific paper

10.1117/12.671228

We describe our work towards the manufacture of micro-optical arrays using freeform diamond machining techniques. Simulations have been done to show the feasibility of manufacturing micro-lens arrays using the slow-tool servo method. Using this technique, master shapes can be produced for replication of micro-lens arrays of either epoxy-on-glass or monolthic glass types. A machine tool path programme has been developed on the machine software platform DIFFSYS, allowing the production of spherical, aspherical and toric arrays. In addition, in theory spatially varying lenslets, sparse arrays and dithered lenslet arrays (for high contrast applications) are possible to produce. In practice, due to the diamond tool limitations not all formats are feasible. Investigations into solving this problem have been carried out and a solution is presented here.

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