A method and apparatus for cooling an air conditioning system’s condensing coils utilizing an air filter pad made of glass fibers with self contained, perforated water capillary tubes allowing moisture to permeate the filter pad. The high volume lens curing system may be configured to cure multiple eyeglass lenses in a continuous manner. The connection piece preferably contains a graphite body in the shape of a cylinder or a bi-cone. The light-receiving element receives first-order diffracted light, of the reflected beam from the recording medium, diffracted by the transmissive diffraction grating.