US 8,410,714 B2 · Illuminating device

Abstract

An illuminating device comprising semiconductor light-emitting devices employing a semiconductor light-emitting element, wherein outputted light is stably combined, separation of light is inhibited, and color tone is variable. Control for operating the light-emitting devices is as simple as possible. It is an illuminating device comprising a light-emitting part comprising a plurality of kinds of semiconductor light-emitting devices which differ in emission color are integrated and arranged, the semiconductor light-emitting devices comprising a semiconductor light-emitting element and a phosphor, and wherein the semiconductor light-emitting devices emit light outward on the basis of an emission from the semiconductor light-emitting element and an emission from the phosphor which is excited by said emission from the semiconductor light-emitting element to fluoresce or on the basis of an emission from the phosphor which is excited by an emission from the semiconductor light-emitting element to fluoresce, wherein the semiconductor light-emitting devices each have an emission color, the deviation duv of which from a blackbody radiation locus being within a range of −0.02≦duv≦0.02, in the uv chromaticity diagram according to UCS (u,v) color system (CIE 1960), and outputted lights from the light-emitting part in which the plurality of kinds of the semiconductor light-emitting devices are integrated and arranged, are mixed together and emitted outward.

Claims26

Dependent claims

An illuminating device comprising:

a first to an Nth solid-state light-emitting device, wherein:
N is an integer equal to or greater than two;
first to Nth solid-state light-emitting devices differ in emission color, and each comprises a semiconductor light-emitting element having an emission peak wavelength in a range of 350 nm to 430 nm and having an emission region belonging to near-ultraviolet region or ultraviolet region;
and a phosphor and emits a primary light on the basis of an emission from the semiconductor light-emitting element and an emission from the phosphor which is excited by said emission from the semiconductor light-emitting element to fluoresce, or on the basis of an emission from the phosphor which is excited by an emission from the semiconductor light-emitting element to fluoresce;
the first to Nth solid-state light-emitting devices each have an emission color, the deviation duv of which from a blackbody radiation locus being within a range of −0.02≦duv≦0.02, in the uv chromaticity diagram according to USC (u,v) color system (CIE 1960);
and
a synthesized light which is synthesized from primary lights emitted by the first to Nth solid-state light-emitting devices is emitted outward.

4 more elements

An illuminating device comprising a light-emitting module comprising:

at least a package;
a semiconductor light-emitting element having an emission peak wavelength in the range of 350 nm or more to 430 nm or less;
and
a phosphor,
wherein the light-emitting module emits light outward on the basis of an emission from the semiconductor light-emitting element and an emission from the phosphor, which is excited by said emission from the semiconductor light-emitting element to fluoresce, or on the basis of an emission from the phosphor which is excited by an emission from the semiconductor light-emitting element to fluoresce,
wherein the package has an opening which is open in an emission direction for the light-emitting module and a plurality of divided regions demarcated by partitioning the inside of the package, each of the divided regions being open at a divided opening which is a part of said opening,
wherein each of the plurality of the divided regions comprises:
one or more of the semiconductor light-emitting elements;
a power supply part which supplies electric power to the semiconductor light-emitting element;
and
a fluorescent part comprising the phosphor and a light-transmitting material, which fills up the divided region, and
wherein, among the plurality of the divided regions, at least one divided region is different from at least one other divided region in a spectrum of a primary light from the fluorescent part, wherein each of the-primary light has an emission color, the deviation duv of which from a blackbody radiation locus is within a range of −0.02≦duv≦0.02, in the uv chromaticity diagram according to UCS (u,v) color system (CIE 1960), and wherein a synthesized light which is synthesized from each of the primary light from said at least one divided region and the primary light from said at least one other divided region is emitted outward.

9 more elements

Dependencies are inferred from the claim text.

Illuminating device

Life of this patent

Illuminating device

Life of this patent

Abstract

Claims26