Apparatus for classifying a ray is disclosed, wherein the ray is received at a code division multiple access receiver. Preferably, the ion conductor includes a chalcogenide material with Group IB or Group IIB metals. Wherein the transporting platform picks up the glass substrate from the substrate exporting apparatus when docked thereto, and then transporting the substrate horizontally to the substrate importing apparatus in which the glass substrate is delivered as the transporting device is articulated thereto. The one-piece plunger body provides a high degree of resistance to side loads which may be imposed on the HLA in use. The PCB conducts and dissipates heat from the light emitting elements, the unit further comprises a space between most of the PCB and the lighting unit housing to allow heat from the PCB to dissipate into the surrounding ambient.