An indicator including a transmittable indicator panel attached to a shielding holder (a housing), and a character or a graphic form indicated inside the indicator panel. The character or the graphic form is irradiated by a light emitting diode located inside the housing. The indicator panel is formed by a character indicating part that indicates a character or a graphic form and transmits light, a masking part that intercepts light by surrounding the character indicating part, and a transmittable margin that surrounds the masking part and transmits light. With this configuration, a character or a graphic form becomes conspicuous during the daytime, and at night is never more conspicuous than is required. Thus, the visibility of the indicator can be improved. Moreover, the configuration of the transmitting light from the light source of the indicator allows it to be accommodated in the limited space available on the indicator panel.
