An on-vehicle camera calibration device is provided and a method of calibrating an on-vehicle camera easily is carried out by using a calibration indicator other than a three dimensional one. The activation members include an activation belt and a single activation member wherein the activation belt and single activation member comprise a plurality of teeth and grooves that complement and engage one another at a depth of engagement in a deformation zone. Methods of modeling diffusion processes, as well as machine-readable products embodying the methods are also disclosed. If the evaluation result is not found in the central cache file, the evaluation result may be retrieved from the mirror cache if present. It is possible in this way to produce a bending-resistant and torsionally rigid brake caliper with a low wall thickness. The array substrate reduces the number of masks used in the fabrication process so that reliability is enhanced and the cost is reduced over the conventional device and method.