An optical component includes a lens holder including a first electrode, an insulating structure formed on the first electrode and having a through hole provided as an optical path, and at least one second electrode formed inside the insulating structure to encompass the through hole, and at least one microlens located in the through hole and formed of transparent resin. The method includes monitoring parameters of the access points. A specific pixel is then selected from among the pixels of the thumbnail image data. Thin flexible tail are attached to the bladder end region of the tubular segment at a point outside the bladder so as to receive urine from the opening in the bladder end region of the tubular segment and to transport urine from there across the ureterbladder junction and into the bladder.