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US 10,541,339 B2Granted
Sintered compact and light emitting device
AssigneeKoito Manufacturing Co., Ltd.
InventorsAkihiro Nomura, Hidemichi Sone, Yuzo Maeno, Yukihiro Onoda
Life of this patent
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Abstract
A sintered compact includes a wavelength conversion region containing a phosphor material that performs wavelength conversion of primary light and emits secondary light, and a holding region provided to be in contact with the wavelength conversion region. The wavelength conversion region and the holding region are integrated.
Claims5
A method of manufacturing a sintered compact, comprising:
- preparing a first green sheet containing a phosphor material that performs wavelength conversion of primary light into secondary light;
- preparing second green sheets that do not contain the phosphor material;
- preparing a layered green sheet by sandwiching the first green sheet between the second green sheets;
- pressing the layered green sheet such that the first green sheet and the second green sheets become adhered to each other;
- and
- sintering the layered green sheet in which the first green sheet and the second green sheets are adhered to each other to form the sintered compact.
3 more elements
A method of manufacturing a lighting device, comprising:
- preparing a first green sheet containing a phosphor material that performs wavelength conversion of primary light into secondary light;
- preparing second green sheets that do not contain the phosphor material;
- preparing a layered green sheet by sandwiching the first green sheet between the second green sheets;
- pressing the layered green sheet such that the first green sheet and the second green sheets become adhered to each other;
- sintering the layered green sheet in which the first green sheet and the second green sheets are adhered to each other to form a sintered compact;
- and
- assembling the sintered compact and a light source to a case to form the lighting device.
4 more elements
Dependencies are inferred from the claim text.