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公开(公告)号：US11371675B2
公开(公告)日：2022-06-28
申请号：US17047220
申请日：2019-04-10
发明人： Tatsuya Okuno , Takeshi Abe , Shozo Oshio
摘要： Alight emitting device (A) includes a laser light source (1) that emits laser light (100), a housing (2A) that includes a bottom wall (3) and a side wall, and a first wavelength converter (20) provided on the side wall, the first wavelength converter (20) containing a first phosphor. The bottom wall of the housing is irradiated with the laser light emitted from the laser light source, and the first phosphor is excited by diffused light of the laser light diffused by the bottom wall. With such a configuration, the light emitting device (A) improves color uniformity and chromaticity flexibility while increasing power density of output light.
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公开(公告)号：US11067242B2
公开(公告)日：2021-07-20
申请号：US15885121
申请日：2018-01-31
申请人： LG Electronics Inc.
发明人： Jongmoo Lee , Eunyoung Kim , Mongkwon Jung , Byungwoo Jeoung
IPC分类号： F21S41/176 , F21S41/16 , F21S45/47 , F21V9/32 , F21V7/26 , F21V29/83 , F21K9/64 , F21S41/19 , F21S41/141 , F21V8/00 , H01L33/50
摘要： A phosphor module for a laser light source includes a heat radiator, a phosphor layer disposed at the heat radiator and configured to absorb and emit light, where a wavelength of the emitted light is different from a wavelength of the absorbed light, a reflective layer that covers a side surface of the phosphor layer and is configured to reflect light, and an adhesive layer disposed between the phosphor layer and the heat radiator and between the reflective layer and the heat radiator, the adhesive layer being configured to couple each of the phosphor layer and the reflective layer to the heat radiator. A thermal conductivity of the adhesive layer is greater than a thermal conductivity of each of the phosphor layer and the reflective layer.
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公开(公告)号：US10808893B2
公开(公告)日：2020-10-20
申请号：US16291679
申请日：2019-03-04
发明人： Alan Lenef , David Klotzkin , Xin Wen
IPC分类号： H01L33/46 , F21K9/68 , H01L33/60 , H01L33/50 , F21K9/64 , H01L33/48 , F21V7/26 , H01S5/022 , H01L27/146 , H01L27/32 , F21Y115/30 , F21Y115/10
摘要： An optoelectronic semiconductor light source includes a semiconductor chip configured to emit primary radiation, a Bragg mirror, and a luminescence conversion element configured to convert at least part of the primary radiation into secondary radiation having a longer wavelength, wherein the Bragg mirror is arranged between the semiconductor chip and the luminescence conversion element, the Bragg mirror is reflective for the secondary radiation and transmissive for the primary radiation, the Bragg mirror includes reflector layers of at least three different materials with different refractive indices, the Bragg mirror includes at least two different kinds of layer pairs, each kind of layer pairs being made up of reflective layers of two different materials, and the different kinds of layer pairs having different Brewster angles for p-polarized radiation.
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公开(公告)号：US20200249554A1
公开(公告)日：2020-08-06
申请号：US16637865
申请日：2018-07-18
申请人： SONY CORPORATION
发明人： Izushi KOBAYASHI , Mariko OBINATA , Yuki MAEDA
摘要： A light source unit according to an embodiment of the present disclosure includes: a light source section; and a wavelength conversion element that is excited by exciting light from the light source section to emit fluorescent light. The wavelength conversion element includes a substrate that is rotatable around a rotation axis, a phosphor layer including a plurality of phosphor particles, and a quantum-dot layer including a plurality of quantum dots. The phosphor layer and the quantum-dot layer are disposed in this order relative to the light source section.
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公开(公告)号：US20230151946A1
公开(公告)日：2023-05-18
申请号：US18054132
申请日：2022-11-09
申请人： NICHIA CORPORATION
发明人： Toshiaki YAMASHITA
IPC分类号： F21V7/26
CPC分类号： F21V7/26 , F21Y2115/10
摘要： A method of manufacturing a wavelength conversion member includes: preparing a composite by layering a layered body and a ceramic sheet that includes a phosphor, the layered body including a pair of light-reflective green sheets each containing a reflective material, and a light-shielding green sheet containing a light shielding material with the light-shielding green sheet being layered between the pair of reflective green sheets; and pressurizing and firing the composite.
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公开(公告)号：US20220107074A1
公开(公告)日：2022-04-07
申请号：US17644534
申请日：2021-12-15
发明人： Yoshiro SATO , Hironari ZUSHI
IPC分类号： F21S43/16 , F21S43/14 , F21S43/239 , F21V7/26 , F21V9/38
摘要： A light source unit of a vehicle lighting system includes: a light source to emit excitation light; a light generating unit including a luminescent layer to emit generation light by being irradiated with the excitation light and a holding member holding the luminescent layer; and a lens member to output generation light from the luminescent layer toward the front, with the light source unit mounted on the vehicle.
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公开(公告)号：US11269245B2
公开(公告)日：2022-03-08
申请号：US16637865
申请日：2018-07-18
申请人： SONY CORPORATION
发明人： Izushi Kobayashi , Mariko Obinata , Yuki Maeda
摘要： A light source unit according to an embodiment of the present disclosure includes: a light source section; and a wavelength conversion element that is excited by exciting light from the light source section to emit fluorescent light. The wavelength conversion element includes a substrate that is rotatable around a rotation axis, a phosphor layer including a plurality of phosphor particles, and a quantum-dot layer including a plurality of quantum dots. The phosphor layer and the quantum-dot layer are disposed in this order relative to the light source section.
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公开(公告)号：US10914453B2
公开(公告)日：2021-02-09
申请号：US15767106
申请日：2016-10-19
发明人： Akira Egawa
IPC分类号： F21S2/00 , F21V7/22 , F21V9/20 , F21V9/40 , G03B21/20 , H04N5/74 , F21V7/26 , H04N9/31 , F21V14/04 , F21V9/45 , F21Y115/30
摘要： A wavelength conversion device in which a wavelength conversion element less easily comes off a substrate. A wavelength conversion device includes a substrate capable of rotating around a rotation axis, a wavelength conversion element provided around the rotation axis on one surface side of the substrate, and a fixing member that fixes the wavelength conversion element to the substrate. The wavelength conversion element includes a first surface opposed to the one surface of the substrate, a second surface on the opposite side of the first surface, and a first side surface section that connects the first surface to the second surface. The fixing member is in contact with the first side surface section in at least a part of the first side surface section when viewed from a direction parallel to the rotation axis.
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公开(公告)号：US10180237B2
公开(公告)日：2019-01-15
申请号：US15621166
申请日：2017-06-13
申请人： NICHIA CORPORATION
发明人： Masahiko Sano , Hiroaki Yuto , Naoki Eboshi , Toru Takasone
IPC分类号： F21V9/16 , F21V9/30 , F21V29/70 , F21V5/04 , F21V7/00 , F21V13/14 , F21K9/64 , H01S5/00 , H01L33/50 , H05B33/14 , F21Y115/30 , F21V7/26 , F21V9/32 , H01S5/022
摘要： A light emitting device includes a laser light, a wavelength conversion member, a base member and a lid. The wavelength conversion member includes a plurality of projected portions each extending along a first direction on an upper surface side thereof and arranged side by side in a second direction. Each of the plurality of projected portions has a first surface extending along the first direction. The first surface is inclined with respect to a reference surface. The laser light source and the wavelength conversion member are arranged so that an optical axis of first light from the laser light source extends along the second direction when viewed from above and is inclined with respect to the reference surface, and light directly incident to the first surface along a direction parallel to the optical axis of the first light is regularly reflected toward an upward direction.
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公开(公告)号：US11959613B2
公开(公告)日：2024-04-16
申请号：US17644534
申请日：2021-12-15
发明人： Yoshiro Sato , Hironari Zushi
IPC分类号： F21S43/16 , F21S43/14 , F21S43/239 , F21V7/26 , F21V9/38
CPC分类号： F21S43/16 , F21S43/14 , F21S43/239 , F21V7/26 , F21V9/38
摘要： A light source unit of a vehicle lighting system includes: a light source to emit excitation light; a light generating unit including a luminescent layer to emit generation light by being irradiated with the excitation light and a holding member holding the luminescent layer; and a lens member to output generation light from the luminescent layer toward the front, with the light source unit mounted on the vehicle.
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