A method and system are described that enable the construction of declarative applications, such as XDML, that can access DASE System services. The present invention includes a plurality of light sources emitting lights, respectively, each transmitting at least one of a light emitted from a different light source and a light having transmitted through the different light source and a light guiding unit sending the lights emitted from the light sources and the light transmitted through the light sources in one direction. Based on the difference temperature field on the surface of a body, zones are determined inside the bioobject that are identified with pathology loci. A thin gel slab holder is securely held in position by rotating the cam in a direction such that the high lobe contacts the thin gel slab holder.