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Figure 1
(a) Section (top view) of the optical micrograph of a mosaic prism lens made using the lithography technique; the lens is made of an arrangement of many prisms with triangular cross section (made of SU8), shown as grey spots (yellow online), deposited on a silicon substrate. The prism segments are symmetrically arranged in lateral dimension on the two sides of the optical axis. The lateral size of the lens is 2.9 mm and the longitudinal length is 30 mm. The optical axis is indicated by a dashed line. It was designed for one-dimensional focusing with 2.9 mm geometric aperture in focal dimension; the other dimension was limited to 100 µm by the height of prism segments. (b) A small section near the optical axis was observed by scanning electron micrograph showing individual prism segment with triangular cross section. (c) The dimensions of a prism segment at the entry of the lens aperture are shown.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 2| January 2012| Pages 191-197
doi:10.1107/S0909049511052307
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