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公开(公告)号：US20240006555A1
公开(公告)日：2024-01-04
申请号：US18038570
申请日：2021-10-20
Inventor： Yosuke HONDA , Shinichi KITAOKA , Noriyasu NAKASHIMA , Yoshiyuki TAKAHIRA
CPC classification number: H01L33/26 , H01L33/483 , H01L33/644 , H01L2933/0033
Abstract: A transmissive fluorescence emitting module includes: a fluorescent substrate that consists essentially of a fluorescent material; a metal member bonded to a principal surface that the fluorescent substrate includes; and a rotator that rotates the fluorescent substrate and the metal member about an axis extending in a thickness direction of the fluorescent substrate. In a plan view of the fluorescent substrate, the fluorescent substrate includes a region that does not overlap the metal member, the region being annular ring-shaped.
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2.发明申请公开(公告)号：US20190146317A1
公开(公告)日：2019-05-16
申请号：US16183430
申请日：2018-11-07
Inventor： Kenta WATANABE , Toshio MORI , Hiroshi ASANO , Yosuke HONDA , Ran ZHENG , Sachiko AZUMA
Abstract: A wavelength conversion device is provided that includes: light-transmissive substrate that includes an incidence surface and an emission surface opposite the incidence surface, and emits, from the emission surface, laser light that enters the incidence surface; a phosphor layer that emits fluorescent light when excited by the laser light emitted from the emission surface; and a light diffuser layer between the emission surface and the phosphor layer. The light diffuser layer is, when viewed in a direction perpendicular to the emission surface, disposed only in a portion of a region in which the phosphor layer is disposed.
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公开(公告)号：US20180274737A1
公开(公告)日：2018-09-27
申请号：US15761944
申请日：2016-10-26
Inventor： Takeshi ABE , Shozo OSHIO , Hiroshi ASANO , Yosuke HONDA
Abstract: A light emitting device includes a first wavelength converter that contains a first phosphor that absorbs at least part of primary light radiated by a radiation source and converts the primary light absorbed into secondary light, and a second wavelength converter that contains a second phosphor that absorbs at least part of the secondary light and converts the secondary light absorbed into tertiary light. The lifetime of fluorescence emitted from the second phosphor is longer than the lifetime of fluorescence emitted from the first phosphor, and the light density of the secondary light, with which the second wavelength converter is irradiated, is lower than the light density of the primary light, with which the first wavelength converter is irradiated.
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公开(公告)号：US20240345464A1
公开(公告)日：2024-10-17
申请号：US18293687
申请日：2022-08-17
Inventor： Noboru IIZAWA , Yosuke HONDA
CPC classification number: G03B21/204 , G02B26/008 , G03B21/16
Abstract: A phosphor wheel includes: a substrate having a first main surface and a second main surface; a phosphor layer provided on the first main surface; and a heat dissipation member disposed opposite the second main surface. The heat dissipation member includes: a protrusion provided in a central part of the heat dissipation member; and a plurality of fins formed by lancing a plurality of regions in a peripheral region outside the central part. The protrusion provides a set gap between the substrate and the heat dissipation member and conducts heat from the substrate to the peripheral region. Two fins among the plurality of fins are formed on sides of the corresponding region opposite each other in a rotation direction of the heat dissipation member.
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5.发明公开公开(公告)号：US20240085772A1
公开(公告)日：2024-03-14
申请号：US18039100
申请日：2021-10-20
Inventor： Noriyasu NAKASHIMA , Yosuke HONDA , Shinichi KITAOKA , Yoshiyuki TAKAHIRA
CPC classification number: G03B21/204 , G03B21/16
Abstract: A fluorescence emitting element includes: a wavelength conversion member that is plate-shaped and includes a fluorescent material, the wavelength conversion member including a first principal surface and a second principal surface that is on an opposite side from the first principal surface; and a metal film bonded to at least one surface out of the first principal surface and the second principal surface. In a plan view of the wavelength conversion member, the wavelength conversion member includes a region that does not overlap the metal film, and the metal film includes a bonding surface that is bonded to the at least one surface, and an exposed surface on an opposite side from the bonding surface.
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Patent Agency Ranking
公开(公告)号：US20240060636A1
公开(公告)日：2024-02-22
申请号：US18260750
申请日：2021-12-21
Inventor： Noboru IIZAWA , Yosuke HONDA
CPC classification number: F21V29/83 , F21S10/007 , F21V29/745 , G03B21/204
Abstract: A phosphor wheel includes: a substrate including a first principal surface and a second principal surface; a phosphor layer; and a heat dissipating member. The heat dissipating member includes: a projecting portion projecting toward one of the principal surfaces and including a contact surface that contacts the one of the principal surfaces; fins provided by cutting and raising regions in a peripheral region of the heat dissipating member excluding a central portion of the heat dissipating member; and a bent end portion having an obtuse bending angle and provided as a result of an outer edge portion of the heat dissipating member being bent. The projecting portion secures a certain distance between the substrate and the heat dissipating member and conducts heat in the substrate to the peripheral region of the heat dissipating member.
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公开(公告)号：US20240053599A1
公开(公告)日：2024-02-15
申请号：US18259975
申请日：2021-12-21
Inventor： Noboru IIZAWA , Yosuke HONDA
IPC: G02B26/00 , F21V29/502
CPC classification number: G02B26/008 , F21V29/502
Abstract: A phosphor wheel includes: a substrate including a first principal surface and a second principal surface; a phosphor layer; and a heat dissipating member. The heat dissipating member includes: a projecting portion projecting toward one of the principal surfaces and including (i) a contact surface that contacts the one of the principal surfaces and (ii) a peripheral wall to which the contact surface serves as a bottom surface; and fins provided by cutting and raising regions in a peripheral region of the heat dissipating member excluding a central portion of the heat dissipating member. The projecting portion includes, in the peripheral wall, through-holes provided for ventilation. The projecting portion contacts the substrate via the contact surface to secure a certain distance between the substrate and the heat dissipating member and conduct heat in the substrate to the peripheral region of the heat dissipating member.
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公开(公告)号：US20220260241A1
公开(公告)日：2022-08-18
申请号：US17622061
申请日：2020-07-08
Inventor： Noboru IIZAWA , Yosuke HONDA
Abstract: A phosphor wheel includes a substrate including a first principal surface and a second principal surface located opposite to each other, a phosphor layer on the first principal surface, and a heat dissipating member disposed so as to oppose one of the first principal surface and the second principal surface. The heat dissipating member includes a projecting portion that projects from a center portion of the heat dissipating member, and the projecting portion includes a contact surface that contacts the one of the first principle surface and the second principle surface. The heat dissipating member further includes fins formed in a peripheral region of the heat dissipating member excluding the center portion. The projecting portion secures a certain distance between the substrate and the heat dissipating member and conducts heat in the substrate to the peripheral region of the heat dissipating member.
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公开(公告)号：US20210344883A1
公开(公告)日：2021-11-04
申请号：US17270622
申请日：2019-07-23
Inventor： Takanori AKETA , Yosuke HONDA , Takashi KISHIDA , Toru HIRANO
Abstract: A color conversion element includes: a substrate; a phosphor portion that is disposed above the substrate, receives laser light transmitted from an outside, and emits light in a color different from a color of the laser light; a reflective layer that includes a dielectric multilayer film and is disposed on a principal surface of the phosphor portion facing the substrate; and a joining portion interposed between the reflective layer and the substrate to join the reflective layer and the substrate. The joining portion includes an air layer that exposes the reflective layer in a position where the air layer at least partially overlaps an irradiation region in a plan view, the irradiation region being a region irradiated with the laser light on the phosphor portion.
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公开(公告)号：US20190323664A1
公开(公告)日：2019-10-24
申请号：US16457956
申请日：2019-06-29
Inventor： Takeshi ABE , Shozo OSHIO , Hiroshi ASANO , Yosuke HONDA
Abstract: A light emitting device includes a first wavelength converter that contains a first phosphor that absorbs at least part of primary light radiated by a radiation source and converts the primary light absorbed into secondary light, and a second wavelength converter that contains a second phosphor that absorbs at least part of the secondary light and converts the secondary light absorbed into tertiary light. The lifetime of fluorescence emitted from the second phosphor is longer than the lifetime of fluorescence emitted from the first phosphor, and the light density of the secondary light, with which the second wavelength converter is irradiated, is lower than the light density of the primary light, with which the first wavelength converter is irradiated.
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