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US 9,429,830 B2Granted
Fluorescent light emitting element and projector
AssigneeSeiko Epson Corporation
InventorShigeo Nojima
Life of this patent
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Abstract
A fluorescent light emitting element includes a substrate; a phosphor layer that is provided on the substrate; an adhesive layer that is provided between the substrate and the phosphor layer; and a reflection unit that is provided between the adhesive layer and the substrate or between the adhesive layer and the phosphor layer. The phosphor layer is formed of a sintered body made of a cerium-activated garnet structure phosphor containing 0.05 atm % cerium, and a thickness of the phosphor layer is in a range of 100 μm to 250 μm.
Claims14
A fluorescent light emitting element, comprising:
- a substrate;
- a phosphor layer that is provided on the substrate;
- an adhesive layer that is provided between the substrate and the phosphor layer;
- and
- a reflection unit that is provided between the adhesive layer and the substrate or between the adhesive layer and the phosphor layer,
- wherein the phosphor layer is formed of a sintered body made of a cerium-activated garnet structure phosphor containing 0.05 atm % cerium, and
- a thickness of the phosphor layer is in a range of 100 μm to 250 μm.
4 more elements
Dependencies are inferred from the claim text.