Patent ID: 9022600
Filing Date: 2015-05-05
Classification: F21S,F21V,F21Y

Abstract:
1. A Light Emitting Diode (LED) illumination device, comprising: a support portion, comprising: a first support surface; a second support surface; and a third support surface, wherein the first support surface faces a side, that is, an illumination side, of a first direction, and the second support surface faces the illumination side of the first direction, is located at a position closer to another side, that is, a disposition side, of the first direction than the first support surface, and surrounds the first support surface in a second direction and a third direction perpendicular to the first direction, and the second direction and the third direction are perpendicular to each other, and the third support surface faces the illumination side of the first direction, is located at a position closer to the illumination side of the first direction than the first support surface, and surrounded by the first support surface in the second direction and the third direction; a plurality of LED chips, comprising a plurality of first LED chips supported on the first support surface, a plurality of second LED chips supported on the second support surface, and a plurality of third LED chips supported on the third support surface; and a mask, located at the illumination side of the first direction with respect to the support portion, penetrated by light from the LED chips, and comprising a tilted portion and a central portion, the tilted portion being closer to the illumination side of the first direction with the inclination to a center in the second direction and third direction, and the central portion being surrounded by the tilted portion, having a flat surface parallel to the second direction and the third direction, and being formed on the third LED chips, wherein the first support surface, the second support surface, and the third support surface are disposed unevenly so as to follow a height profile of the mask with respect to the illumination side along the first direction.