Open Access

Fig. 2


Download original image

Three convex lenses of increasing width 2H at their center: (a) H = 2.5 cm for Lens 1; (b) H = 5 cm for Lens 2 and (c) H = 7.5 cm for Lens 3. All three lenses are 50 cm wide (from left to right); the point force marked by the yellow dot is located on the orthogonal bisector at a distance 12.5 cm from the top of the lens. The mass density is 1.85 larger inside the lens than in the surrounding medium.

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.