Fig. 5.

image

Closeup of one of the rear grids (number 26) seen with front illumination is shown on the left. The slats run from lower right to upper left. The five faint orthogonal lines from the lower left to the upper right are “bridges” which add structural strength but do not degrade imaging. The image on the top right shows a closeup of the same grid, corresponding to the white box on the left. Bottom right: closeup of a much finer pitch grid (number 1).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.