This application relates to a
starlight lighting device, a headlight
system, and a vehicle. The
starlight lighting device includes a
light source, a beam-splitting structure, and decorative elements arranged sequentially. The beam-splitting structure has a light-incident surface, a first reflecting surface, a second reflecting surface, a light-emitting surface, and a background surface. The light-incident surface faces the
light source. The first reflecting surface is arranged around the
optical axis and reflects light outwards. The second reflecting surface surrounds the first reflecting surface circumferentially along the
optical axis and is intermittently arranged circumferentially. The light-emitting surface and the background surface both face away from the
light source, with the light-emitting surface corresponding to the second reflecting surface. The decorative elements face the light-emitting surface and the background surface. The decorative elements include a light-transmitting layer and a patterned layer. The patterned layer is located inside the light-transmitting layer and includes an opening pattern corresponding to the light-emitting surface. This
starlight lighting device can achieve a starlight effect using a relatively small amount of light source.