An active faceted mirror system is disclosed. A processor receives mobile tracking readings from each of multiple mobility assistance devices, and identifies pedestrian routes taken by the mobility assistance devices to a desired destination. A concentric transparent disk is inside of the disk. The present invention is also providing for a method for indicting each sampled well in aforesaid multiwell plate. The first block mask is then removed; and thereafter a plurality of second apertures having a second depth is formed in regions of the substrate that were previously blocked by the first block mask using the same patterned masking layer to define the second apertures, while simultaneously increasing the first depth such that the first depth is deeper than the second depth.