An input device comprising: an electrode section configured to form coupling capacitance between an operating body and itself; and a light-emitting unit (15a, 15b), wherein the electrode section is positioned between the light-emitting unit (15a, 15b) and the operating body and forms a light passage through which light emitted from the light-emitting unit (15a, 15b) toward the operating body passes, wherein the electrode section is formed in the shape of a tube that includes an opening formed at a portion of the light passage close to the operating body, the input device further comprising: a light guiding section that is interposed between the light-emitting unit (15a, 15b) and an operation section and is configured to guide the light emitted from the light-emitting unit (15a, 15b), wherein light emitted from the light guiding section is guided to the operation section through the opening of the electrode section, wherein the light guiding section faces the light-emitting unit (15a, 15b), and includes a light incident surface on which light emitted from the light-emitting unit (15a, 15b) is incident, wherein the light guiding section includes a light emitting surface that is provided at a position facing the operation section opposite to the light incident surface, characterized in that a base body, which is supported above a substrate with elastic members (13a, 13b) interposed therebetween, is provided with the operation section; the light guiding section is fixed to the electrode section, the light incident surface and the light emitting surface are flat surfaces, and an area of the light emitting surface is larger than that of the light incident surface. an electrode section configured to form coupling capacitance between an operating body and itself; and a light-emitting unit (15a, 15b), wherein the electrode section is positioned between the light-emitting unit (15a, 15b) and the operating body and forms a light passage through which light emitted from the light-emitting unit (15a, 15b) toward the operating body passes, wherein the electrode section is formed in the shape of a tube that includes an opening formed at a portion of the light passage close to the operating body, the input device further comprising: a light guiding section that is interposed between the light-emitting unit (15a, 15b) and an operation section and is configured to guide the light emitted from the light-emitting unit (15a, 15b), wherein light emitted from the light guiding section is guided to the operation section through the opening of the electrode section, wherein the light guiding section faces the light-emitting unit (15a, 15b), and includes a light incident surface on which light emitted from the light-emitting unit (15a, 15b) is incident, wherein the light guiding section includes a light emitting surface that is provided at a position facing the operation section opposite to the light incident surface, characterized in that a base body, which is supported above a substrate with elastic members (13a, 13b) interposed therebetween, is provided with the operation section; the light guiding section is fixed to the electrode section, the light incident surface and the light emitting surface are flat surfaces, and an area of the light emitting surface is larger than that of the light incident surface. a light guiding section that is interposed between the light-emitting unit (15a, 15b) and an operation section and is configured to guide the light emitted from the light-emitting unit (15a, 15b), wherein light emitted from the light guiding section is guided to the operation section through the opening of the electrode section, wherein the light guiding section faces the light-emitting unit (15a, 15b), and includes a light incident surface on which light emitted from the light-emitting unit (15a, 15b) is incident, wherein the light guiding section includes a light emitting surface that is provided at a position facing the operation section opposite to the light incident surface, characterized in that a base body, which is supported above a substrate with elastic members (13a, 13b) interposed therebetween, is provided with the operation section; the light guiding section is fixed to the electrode section, the light incident surface and the light emitting surface are flat surfaces, and an area of the light emitting surface is larger than that of the light incident surface.