An optical characteristic measuring apparatus of the invention includes a sequentially-readable charge storage sensor array having a plurality of light receiving elements. The system includes a charge pump having an adapt mode and a normal mode of operation. The joint device includes joint connector portions, each of which is fitted to the fit tubular portion of the cable connector portion to be connected to the high-voltage cable. The tiltable member may be manipulated by a users finger to tilt such member slightly and thereby effect scrolling functionality, thereby simulating the operation of circular capacitive touch pads known in the art. The coated optical fibers have ends which constitute optical inputoutput ports. The method utilizes radiometric measuring devices disposed throughout a continuous fabrication process.