Light-emitting device, illumination device, and night-vision device
AssigneeNichia Corporation
InventorYoshinori MURAZAKI
Life of this patent
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Abstract
A light-emitting device includes a light-emitting element and a phosphor that absorbs at least a portion of light from the light-emitting element and emits light. The phosphor includes two or more types of phosphors each having a light emission peak wavelength in a different range. The two or more types of phosphors are selected from the group consisting of a first phosphor having a light emission peak wavelength within a first range of 700 nm to less than 800 nm, a second phosphor having a light emission peak wavelength within a second range of 800 nm to less than 1100 nm, and a third phosphor having a light emission peak wavelength within a third range of 1100 nm to less than 1500 nm.
Claims14
A light-emitting device comprising:
- a light-emitting element;
- and
- a phosphor that absorbs at least a portion of light from the light-emitting element and emits light, wherein
- the phosphor includes two or more types of phosphors each having a light emission peak wavelength in a different range, the two or more types of phosphors being selected from the group consisting of a first phosphor having a light emission peak wavelength within a first range of 700 nm to less than 800 nm, a second phosphor having a light emission peak wavelength within a second range of 800 nm to less than 1100 nm, and a third phosphor having a light emission peak wavelength within a third range of 1100 nm to less than 1500 nm.
Dependencies are inferred from the claim text.