Vehicle interior lighting apparatus

1. A vehicle interior lighting apparatus for illuminating the interior of a vehicle, comprising:

a plurality of light source units each having a light source emitting three primary colors of light;

a controller for simultaneously controlling the on/off operations and the luminance levels of predetermined two colors in all the light source units and for individually controlling the on/off operation and the luminance level of one color other than the predetermined two colors in each of the light source units;

a first control line that connects the controller to all of the light source units and that permits the controller to simultaneously control the on/off operation and the luminance level of a first color of the predetermined two colors;

a second control line that connects the controller to all of the light source units and that permits the controller to simultaneously control the on/off operation and the luminance level of a second color of the predetermined two colors; and

a set of control lines that connects the controller to each of the light source units individually and that permits the controller to individually control the on/off operation and the luminance level of the one color other than the predetermined two colors, wherein

each control line, of the set of control lines, is connected to the controller and a respective individual light source unit of the plurality of light source units.

2. The vehicle interior lighting apparatus according to claim 1 , wherein

each of the light source units is equipped with a light guide member for guiding light coming from the light source, the light guide members are provided on the interior panel of a door of the vehicle such that parts thereof are exposed to the interior of the vehicle, and the light guide members are arranged at positions adjacent to one another.

3. The vehicle interior lighting apparatus according to claim 1 , wherein

a door of the vehicle is equipped with a plurality of illumination sections for emitting illumination light, and

the light source unit is disposed in each of the illumination sections.

4. A vehicle interior lighting apparatus for illuminating the interior of a vehicle, comprising:

a light guide member having a plurality of light entering sections,

a plurality of light sources emitting at least two colors of light through the light entering sections and to the light guide member, and

a controller for controlling the light emission of the light sources, wherein

in a state in which a light source is caused to emit a color, the controller controls the on/off operation of a light source emitting another color.

5. The vehicle interior lighting apparatus according to claim 4 , wherein

the light guide member is formed into a rod shape in which the plurality of light entering sections are provided at intervals, and the light guide member is provided on the interior panel of the door of the vehicle such that parts thereof are exposed to the interior of the vehicle.