Patent ID: 9004710
Filing Date: 2015-04-14
Classification: F21V,G02F,H04N

Abstract:
1. An illumination device, comprising: a chassis having at least a plate-shaped portion; a plurality of light source substrates that are rectangular and arranged on a surface of the plate-shaped portion such that at least an end face of a short side of each of the light source substrates faces an edge of the plate-shaped portion; light sources arranged on the light source substrates, a surface of each of the light sources on the plate-shaped portion side being a light-emitting side; first through holes penetrating the light source substrates; second through holes that, in a plan view of the plate-shaped portion, are disposed more in the vicinity of said end face of the respective light source substrates than the first through holes, the second through holes penetrating the light source substrates and being more horizontally elongated than the first through holes along a long side direction of the light source substrates; through holes in the plate-shaped portion that are disposed in the plate-shaped portion respectively corresponding in position to the first through holes and the second through holes; and securing pins that have a size that allows the light source substrates to be secured in a plate surface direction thereof by the securing pins going through the first through holes and the through holes in the plate-shaped portion, the securing pins securing the light source substrates in the short side direction thereof by going through the second through holes and the through holes in the plate-shaped portion, the securing pins having a size that allows the light source substrates to move in the long side direction thereof, wherein the light sources are white light emitting diodes, and wherein the white light emitting diodes include one of the following combinations: a combination of a first light-emitting chip that emits blue light and a first light-emitting layer that is provided around said first light-emitting chip and that has a light-emitting peak in a yellow region; a combination of a first light-emitting chip that emits blue light and a second light-emitting layer that is provided around said first light-emitting chip and that has respective light-emitting peaks in a green region and a red region; a combination of a first light-emitting chip that emits blue light, a third light-emitting layer that is provided around the first light-emitting chip and that has a light-emitting peak in a green region, and a second light-emitting chip that emits red light; a combination of a first light-emitting chip that emits blue light, a second light-emitting chip that emits red light, and a third light-emitting chip that emits green light; or a combination of a fourth light-emitting chip that emits ultraviolet light and a fourth light-emitting layer that is provided around said fourth light-emitting chip and that has respective light-emitting peaks in a blue region and a red region.