The objectives of the present invention is to provide smaller, lighter and less expensive structure in a starting device for discharge lamp for car use so as to prevent breakage due to vibrations etc. The hermetic seal can be very small and the loop antenna can be relatively large, wherein the entire package is both highly reliable, resistant to body fluids and completely biocompatible. The bearing assembly can therefore be easily inspected, repaired andor replaced as necessary. The upper portion of the Si cap layer 111a may contain a p-type impurity. In one embodiment, the photoresist mask may be used to form a phosphor coating. Edge equations may be evaluated iteratively along a scanline.