Patent ID: 8203468
Filing Date: 2012-06-19
Classification: H03K

Abstract:
1. A touch switch of an illumination system comprising: an insulating illumination lens, having a front surface, an upper surface, and a rear surface, and provided with an automotive interior or exterior decorative component; a conductive layer provided on a surface of the illumination lens; an electric capacitance detection circuit electrically connected to the conductive layer to detect an electric capacitance change caused when a human body approaches or contacts the conductive layer; wherein the conductive layer is a light-transmissive sputter layer formed by sputtering; wherein light having passed through the illumination lens and the conductive layer illuminates an inner space of the automotive interior or exterior decorative component; and wherein the sputter layer extends from the front surface, via the upper surface, to the rear surface of the illumination lens.