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公开(公告)号：US11908980B2
公开(公告)日：2024-02-20
申请号：US17744361
申请日：2022-05-13
申请人： Nichia Corporation
发明人： Tadaaki Ikeda , Yukiko Yokote
IPC分类号： H01L33/50 , H01L33/48 , H01L33/60 , H01L33/62 , H01L25/075
CPC分类号： H01L33/505 , H01L33/486 , H01L33/60 , H01L33/62
摘要： A light emitting device includes: a mounting substrate comprising a mounting substrate first surface; a first light emitting element configured to emit light having a first peak wavelength; a second light emitting element configured to emit light having a second peak wavelength longer than the first peak wavelength; a first light-transmissive member; and a first wavelength converting member located on the first light-transmissive member.
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公开(公告)号：US10825802B2
公开(公告)日：2020-11-03
申请号：US16360750
申请日：2019-03-21
申请人： NICHIA CORPORATION
发明人： Takuya Nakabayashi , Yukiko Yokote
摘要： A light emitting device includes: a substrate including a base member including an upper surface, a lower surface and one or more lateral surfaces, and defining a recess that is opened at the upper surface and the lateral surfaces and surrounds an outer perimeter of the upper surface; a first light emitting element; a second light emitting element; a light guide member covering the first and the second light emitting elements and the upper surface of the base member; and a first reflective member having a closed-ring shape surrounding the upper surface of the base member and the light guide member, a portion of the first reflective member being located in the recess. At least one of the lateral surfaces of the base member and corresponding at least one of one or more outer lateral surfaces of the first reflective member are in the same plane.
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公开(公告)号：US11677048B2
公开(公告)日：2023-06-13
申请号：US17086975
申请日：2020-11-02
申请人： NICHIA CORPORATION
CPC分类号： H01L33/502 , C09K11/617 , H01L25/0753 , H01L33/58 , H01L33/60 , H01L33/62 , H01L33/647 , H01L2933/0091
摘要： A light emitting device includes a first light emitting element including a rectangular first light extraction surface, a second light emitting element including a rectangular second light extraction surface and emitting light having an emission peak wavelength different from an emission peak wavelength of the first light emitting element, and a light-transmissive member covering the first light extraction surface and the second light extraction surface. The light-transmissive member includes a first light-transmissive layer facing the first light extraction surface and the second light extraction surface, a wavelength conversion layer located on the first light-transmissive layer, and a second light-transmissive layer located on the wavelength conversion layer. The first light-transmissive layer contains a first matrix and first diffusive particles. The wavelength conversion layer contains a second matrix and wavelength conversion particles. The second light-transmissive layer contains a third matrix and second diffusive particles.
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公开(公告)号：US11189758B2
公开(公告)日：2021-11-30
申请号：US16519809
申请日：2019-07-23
申请人： NICHIA CORPORATION
发明人： Takuya Nakabayashi , Yukiko Yokote , Tadaaki Ikeda
IPC分类号： H01L33/50 , H01L33/10 , F21K9/68 , F21K9/61 , H01L25/075
摘要： A light-emitting device has a longitudinal direction and a width direction perpendicular to the longitudinal direction, and includes a first light-emitting element, a second light-emitting element having a peak emission wavelength different from a peak emission wavelength of the first light-emitting element and being aligned with the first light-emitting element in the longitudinal direction, a light-transmissive member covering a first element light extracting surface and a second element light extracting surface such that a portion of a light-guide member is located between the light-transmissive member and each of the first element light extracting surface and the second element light extracting surface, a first reflective member surrounding the first light-emitting element, the second light-emitting element, and the light-guide member in a top view, and a first inclined member between the first light-emitting element and the first reflective member in the longitudinal direction and having an inclined surface inclined relative to the light-transmissive member. The first inclined member is spaced apart from the light-transmissive member.
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公开(公告)号：US11605617B2
公开(公告)日：2023-03-14
申请号：US17039044
申请日：2020-09-30
申请人： NICHIA CORPORATION
发明人： Takuya Nakabayashi , Yukiko Yokote
摘要： A light emitting device includes: a substrate including a base member including an upper surface, a lower surface and one or more lateral surfaces, and defining a recess that is opened at the upper surface and the lateral surfaces and surrounds an outer perimeter of the upper surface; a first light emitting element; a second light emitting element; a light guide member covering the first and the second light emitting elements and the upper surface of the base member; and a first reflective member having a closed-ring shape surrounding the upper surface of the base member and the light guide member, a portion of the first reflective member being located in the recess. At least one of the lateral surfaces of the base member and corresponding at least one of one or more outer lateral surfaces of the first reflective member are in the same plane.
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公开(公告)号：US11362241B2
公开(公告)日：2022-06-14
申请号：US17029957
申请日：2020-09-23
申请人： NICHIA CORPORATION
发明人： Tadaaki Ikeda , Yukiko Yokote
IPC分类号： H01L33/50 , H01L33/48 , H01L33/60 , H01L33/62 , H01L25/075
摘要： A light emitting device includes a first light emitting element, a second light emitting element, a first light-transmissive member, and a first wavelength converting member. The first light emitting element has a first light emitting element first surface at which a first n-side electrode and a first p-side electrode are disposed, and a first light emitting element second surface. The second light emitting element has a second light emitting element first surface at which a second n-side electrode and a second p-side electrode are disposed, and a second light emitting element second surface. The first light-transmissive member covers the first light emitting element fourth surface of the first light emitting element and a second light emitting element fourth surface of the second light emitting element. The first wavelength converting member is disposed on the first light-transmissive member.
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公开(公告)号：US10854790B2
公开(公告)日：2020-12-01
申请号：US16229409
申请日：2018-12-21
申请人： NICHIA CORPORATION
摘要： A light emitting device includes a first light emitting element including a rectangular first light extraction surface, a second light emitting element including a rectangular second light extraction surface and emitting light having an emission peak wavelength different from an emission peak wavelength of the first light emitting element, and a light-transmissive member covering the first light extraction surface and the second light extraction surface. The light-transmissive member includes a first light-transmissive layer facing the first light extraction surface and the second light extraction surface, a wavelength conversion layer located on the first light-transmissive layer, and a second light-transmissive layer located on the wavelength conversion layer. The first light-transmissive layer contains a first matrix and first diffusive particles. The wavelength conversion layer contains a second matrix and wavelength conversion particles. The second light-transmissive layer contains a third matrix and second diffusive particles.
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