Wavelength conversion element, method of manufacturing wavelength conversion element, light source device, and projector
AssigneeSeiko Epson Corporation
InventorsTomohiro YOKOO, Kei TADACHI
Life of this patent
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Abstract
A wavelength conversion element according to the invention includes a wavelength conversion layer having a plurality of air holes, and excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band, a transparent member adapted to seal a recessed section occurring on a first surface of the wavelength conversion layer due to the air hole, a reflecting layer disposed so as to be opposed to the first surface of the wavelength conversion layer, and a base member disposed so as to be opposed to the reflecting layer, and the transparent member is disposed in some of the plurality of air holes.
Claims17
A wavelength conversion element comprising:
- a wavelength conversion layer having a plurality of air holes, and excited by light in a first wavelength band to thereby generate light in a second wavelength band different from the first wavelength band;
- a transparent member adapted to seal a recessed section occurring on a first surface of the wavelength conversion layer due to the air hole;
- a reflecting layer disposed so as to be opposed to the first surface of the wavelength conversion layer;
- and
- a base member disposed so as to be opposed to the reflecting layer,
- wherein the transparent member is disposed in some of the plurality of air holes.
A method of manufacturing a wavelength conversion element, the method comprising:
- forming a wavelength conversion layer having a plurality of air holes;
- forming a transparent member adapted to seal a recessed section generated due to the air hole by dipping at least a first surface having the recessed section out of the wavelength conversion layer in a predetermined solution, and then calcining the predetermined solution;
- and
- forming a reflecting layer at a position opposed to the first surface of the wavelength conversion layer.
A method of manufacturing a wavelength conversion element, the method comprising:
- forming a wavelength conversion layer having a plurality of air holes and a recessed section generated due to the air hole;
- forming a first layer at a position opposed to a first surface of the wavelength conversion layer;
- forming a reflecting layer on an opposite side to the wavelength conversion layer of the first layer;
- and
- forming a transparent member adapted to seal the recessed section by dipping the first layer and the reflecting layer in a predetermined solution after the forming the reflecting layer, and then calcining the predetermined solution.
Dependencies are inferred from the claim text.