Decorative illumination device, control device for decorative illumination device, and game machine

A control device for a decorative illumination device that is elongated and configured for installation in an enclosure of a game machine, wherein

• the decorative illumination device comprises:
• a plurality of light guide plates configured to reflect light entering therein from an end surface thereof with reflection surfaces formed in recesses thereon, and causing the light to be emitted from a light emitting surface thereof;
• a plurality of light sources provided corresponding to the plurality of light guide plates;
• and
• a long window part open from at least two directions of a front surface of the decorative illumination device and side surfaces connected to the front surface,
• the plurality of light guide plates is slanted with gaps therebetween, so that in the slanted state the light emitting surfaces thereof are oriented toward the window part, and
• the control device performs operations comprising:
• operation as a visual effects function unit configured to control light emission of the plurality of light guide plates by controlling the driving of the plurality of light sources and control light emission from the plurality of light guide plates to perform visual effect lighting;
• and
• operation as a notification function unit configured to control light emission from the plurality of light guide plates to convey predetermined information.