Fig. 2.

Projection system characteristics. (a) Acquired image of respective single-point patterns generated at the bundle’s input (left) and output (right) surfaces, the corresponding spatial characteristics of the input spot (bottom left), and three-dimensional projection of the output spot as it propagates in a tissue phantom (bottom right). (b) Segmented fiber bundle images with the target patterns marked in red (left panels) versus images of the actual patterns obtained (right). (c) The bundle’s measured output power intensity as a function of the number of illuminated fibers (red points) and its best fit to $\mathrm{const.}/n$ (solid blue line). (d) Measured contrast ratios of generated output patterns as a function of the number of lit fibers (red points) and best fit to a $\mathrm{const.}/n$ function (solid blue line). Scale bars: $100\mu \mathrm{m}$.