The present invention provides a heat package wherein a surface of a generating heat element that generates heat when exposed to atmosphere is placed against or attached to a heat conductive member. The MFXS includes a plurality of focus points defined along a length of the MFXS collinear with the y-axis. The disclosed details enable various refinements and modifications according to system design considerations. The region of interest may be identified based on motion detection or flesh tone detection, for example.