Provided are systems and methods for image enhancement based on combining multiple related images, such as images of the same object taken from different imaging angles. A download terminal is connected to a search server through a data distribution server and the search server is connectable to a personal terminal. Such a method provides a more accurate method of calculating the required spherocylindrical refractive power of the implant. Therefore, when the multifunction machine is connected to a PC having the Internet call function such that audio signals can be inputoutput through an audio cable, an indirect audio call by the Internet call function with the transmitterreceiver is available. The process reduces andor eliminates the relaxation stress normally associated with PTFE membranes made using previously existing methods. The conductive feedthroughs may be formed as coaxial structures, which help to minimize stray capacitance and inductance.