LIGHT-EMITTING DEVICE
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Sep 20, 2024
filing date -
Sep 20, 2024
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Abstract
A light-emitting device includes a light-emitting element and a plate-shaped light-transmissive member. The plate-shaped light-transmissive member is disposed on or above the light-emitting element. The light-transmissive member has a lower surface configured to receive light emitted from the light-emitting element and an upper surface opposite to the lower surface. The upper surface of the light-transmissive member serves as an emission surface. The light-transmissive member includes a first light-transmissive portion including a first sintered body containing a phosphor particle, and a second light-transmissive portion including a second sintered body containing a light-diffusing particle. The second sintered body has a relative density of 70% or more and 95% or less. The emission surface includes a first light-emitting region configured to emit light through the first light-transmissive portion, and a second light-emitting region configured to emit light through the second light-transmissive portion at a lower luminance than in the first light-emitting region.
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