A micro-mirror device includes a substrate having a surface, and a plate spaced from and oriented substantially parallel to the surface of the substrate such that the plate and the surface of the substrate define a cavity therebetween. The automatic following routine operates based upon operating parameters of the target vehicle and host vehicle, and, predetermined parameters for following. The probe covers are constructed to releasably secure themselves to the probe. The distance between the blades and their extension from the central shaft is adjusted by extending the length of the telescoping arms. The tool outputs tracking data related to orientation of the tool once initialized. to color image files based on information replacement type color conversion processing, a step of storing a plurality of color image files prepared by the color conversion processing in a hard disk, a step of searching through the plurality of color image files stored in the hard disk by a color key, and a step of preparing a list of the color image files hit by the search.