Wavelength conversion member and light-emitting device
AssigneeNichia Corporation
InventorToshiaki Yamashita
Life of this patent
Estimating the term…
Abstract
A wavelength conversion member includes three or more light-emitting portions, and two or more light shielding layers. Each of the three or more light-emitting portions has a phosphor, is separated from each other, and is disposed to be aligned in a first direction. Each of the two or more light shielding layers is disposed between the two light-emitting portions adjacent to each other. The light-emitting portion and the light shielding layer are alternately aligned in the first direction. In the first direction, a length of each of the light-emitting portions is in a range of 0.3 mm to 2.0 mm. An interval in the first direction between the two light-emitting portions adjacent to each other is in a range of 0.1 mm to 2.0 mm.
Claims14
A wavelength conversion member comprising:
- three or more light-emitting portions, each having a phosphor, being separated from each other, and being disposed to be aligned in a first direction;
- two or more layered bodies, each having a light reflective layer and a light shielding layer aligned in the first direction with the light reflective layer, wherein
- the light-emitting portion and the layered body are alternately aligned in the first direction so that each of the layered bodies is interposed between adjacent ones of the light-emitting portions,
- in the first direction, a length of each of the light-emitting portions is in a range of 0.3 mm to 2.0 mm, and
- an interval in the first direction between the two light-emitting portions adjacent to each other is in a range of 0.1 mm to 2.0 mm.
A light-emitting device comprising:
- three or more light-emitting elements;
- and
- a wavelength conversion member including
- three or more light-emitting portions, each having a phosphor, being separated from each other, and being disposed to be aligned in a first direction, and
- two or more light shielding layers, each being disposed between the two light-emitting portions adjacent to each other, wherein
- the wavelength conversion member is spaced apart from the three or more light-emitting elements such that a hollow space is located between the wavelength conversion member and the three or more light-emitting elements, wherein
- the light-emitting portion and the light shielding layer are alternately aligned in the first direction,
- in the first direction, a length of each of the light-emitting portions is in a range of 0.3 mm to 2.0 mm,
- an interval in the first direction between the two light-emitting portions adjacent to each other is in a range of 0.1 mm to 2.0 mm, and
- light emitted from each of the three or more light-emitting elements is incident on a respective one of the light-emitting portions.
Dependencies are inferred from the claim text.