Patent ID: 8425093

Claim:
A lighting device provided on a ceiling of an interior of a vehicle, the lighting device comprising: a map lamp, including: a case comprising a central part and corners located at edges of the central part; a first light guide plate being inclined in the corners of the case with a prescribed angle relative to the central part of the case, and comprising a first light incident area on an end face and a first light radiation area on a flat plate surface of an interior side of the vehicle; a first light source part comprising a plurality of LED lamps, the LED lamps being opposed to the first light incident area and arranged in an array; and a prism lens provided in a first light radiation area side, wherein the map lamp allows a light of the first light source part to be incident on the first light guide plate from the first light incident area, radiates the light from the first light radiation area to convert the light into a planar light, and then converts the light into a light advancing in a prescribed direction to light a prescribed area in the interior of the vehicle; and a vessel provided in the interior side of the vehicle with respect to the prism lens, the first light guide plate, a second light guide plate, and the prism lens being sandwiched between the case and the vessel; and a room lamp, including: said second light guide plate provided integrally with the first light guide plate and comprising a second light incident area on an end face, a second light radiation area on the flat plate surface of the interior side of the vehicle and a connecting area connected to a side part of the first light guide plate on a side surface; and a second light source part having a plurality of LED lamps, the LED lamps being opposed to the second light incident area and arranged in an array, wherein the room lamp allows a light of the second light source part to be incident on the second light guide plate from the second light incident area and radiates the light from the second light radiation area to convert the light into the planar light to light the interior of the vehicle, and wherein the end face comprising the first light incident area and the end face comprising the second light incident area are located on a same virtual plane, and the first light source and the second light source are provided on a same base plate.