Wavelength conversion element
AssigneeSony Group Corporation
InventorsYuki Maeda, Shota Nishi
Life of this patent
Estimating the term…
Abstract
A first wavelength conversion element according to an embodiment of the present disclosure includes: a phosphor layer; a refrigerant; a refrigerant transport member; and a housing. The phosphor layer includes a plurality of phosphor particles. The phosphor layer has a gap therein. The refrigerant cools the phosphor layer. The refrigerant transport member is provided in contact with the phosphor layer. The refrigerant transport member circulates the refrigerant. The housing encapsulates the phosphor layer, the refrigerant, and the refrigerant transport member. The housing includes a protective layer on at least a portion of an inner wall.
Claims19
A wavelength conversion element, comprising:
- a phosphor layer including a plurality of phosphor particles, the phosphor layer having a porous structure therein, the porous structure changing in average pore size from one surface to a light emitting section on another surface, wherein the phosphor layer has a plurality of gaps, the plurality of gaps being distributed to gradually decrease in the average pore size from the one surface to the light emitting section on the other surface;
- a refrigerant that cools the phosphor layer;
- a refrigerant transport member provided below and in contact with the phosphor layer, the refrigerant transport member circulating the refrigerant;
- and
- a housing that encapsulates the phosphor layer, the refrigerant, and the refrigerant transport member, the housing including a protective layer on at least a portion of an inner wall.
A wavelength conversion element, comprising:
- a phosphor layer including a plurality of phosphor particles, the phosphor layer having a porous structure therein, the porous structure changing in average pore size from one surface to a light emitting section on another surface, wherein the phosphor layer has a plurality of gaps, the plurality of gaps being distributed to gradually decrease in the average pore size from the one surface to the light emitting section on the other surface;
- a refrigerant that cools the phosphor layer;
- a refrigerant transport member provided below and in contact with the phosphor layer, the refrigerant transport member circulating the refrigerant;
- and
- a housing that encapsulates the phosphor layer, the refrigerant, and the refrigerant transport member.
Dependencies are inferred from the claim text.