A high volume lens curing system is described. The device includes a MEMS slider assembly housing a transfer charge electrically actuated to move between safe and armed positions of the explosive train. In a first embodiment, a plurality of rollers are used, each one effecting a different cut whose position may be phased so as to shorten or lengthen the antenna element. The angular signatures indicate which blocks have pixels associated with mostly generally vertical andor horizontal angles. Based on the first and second luminance signals, the amount of defocus for an optical unit is calculated.