-
公开(公告)号：US20220233063A1
公开(公告)日：2022-07-28
申请号：US17611996
申请日：2020-05-11
Inventor： Takeshi ABE , Mitsuru NITTA , Shozo OSHIO
Abstract: A light emitting device includes a solid-state light emitting element that emits a pulsed light, a wavelength converter including a phosphor that emits a wavelength-converted light having a wavelength longer than that of the pulsed light, and a light guide member including a light input end and a light output end. The wavelength converter is disposed on a light output end side of the light guide member. The pulsed light is input to the light guide member through the light input end and output through the light output end to be emitted to the wavelength converter. The wavelength-converted light has a fluorescence spectrum having a maximum intensity value in a wavelength range exceeding 710 nm. An electronic apparatus includes the light emitting device. An inspection method includes using the light emitting device.
-
公开(公告)号：US20220090759A1
公开(公告)日：2022-03-24
申请号：US17418278
申请日：2019-12-18
Inventor： Mitsuru NITTA , Shozo OSHIO , Takeshi ABE
Abstract: A light-emitting device includes: a light source that radiates primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a longer wavelength than the primary light, wherein the primary light is laser light, the first wavelength-converted light includes fluorescence based on electron energy transition of Cr3+, and a fluorescence spectrum of the first wavelength-converted light has a maximum fluorescence intensity value in region of a wavelength exceeding 710 nm.
-
公开(公告)号：US20250113692A1
公开(公告)日：2025-04-03
申请号：US18730235
申请日：2023-01-23
Inventor： Takeshi ABE , Shogo MOTEGI , Mitsuru NITTA , Ryosuke SHIGITANI
IPC: H10H29/851 , H10F55/25 , H10H29/14 , H10H29/85
Abstract: A light-emitting device that emits output light, is a light-emitting device that includes: a light-emitting element that emits a primary light; and a wavelength converter that converts at least a portion of the primary light into a secondary light. The output light includes at least a portion of the secondary light. The output light has a light intensity greater than or equal to a predetermined value throughout an entire wavelength range of from 750 nm to 900 nm, inclusive. A ratio of a light intensity of the output light at 900 nm to a light intensity of the output light at 750 nm is greater than or equal to 0.2 and less than 3.0. The output light has a spectral luminosity of at least 0.1 lm/W and at most 10 lm/W.
-
4.发明公开公开(公告)号：US20240279546A1
公开(公告)日：2024-08-22
申请号：US18571218
申请日：2022-06-01
Inventor： Mitsuru NITTA , Ryosuke SHIGITANI , Shozo OSHIO
IPC: C09K11/77 , C01B33/24 , F21V9/30 , F21V9/38 , F21Y113/00 , F21Y115/10
CPC classification number: C09K11/7708 , C01B33/24 , C09K11/7776 , F21V9/30 , F21V9/38 , C01P2002/52 , C01P2002/72 , C01P2006/60 , F21Y2113/30 , F21Y2115/10
Abstract: Provided is a phosphor represented by general formula (1) below,
(Gd1-x-y,Lny,MIIx)3MIII2(Ga1-z,MIVz)3O12:Cr3+ (1)
where, in the formula, Ln is one or more elements selected from La, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Yb, and Lu, MII is a divalent element, MIII is a trivalent element, MIV is a tetravalent element, and x, y, and z satisfy 0-
公开(公告)号：US20240036450A1
公开(公告)日：2024-02-01
申请号：US18287010
申请日：2022-03-09
Inventor： Hiroshi KITANO , Mitsuru NITTA , Takeshi ABE
IPC: G03B21/20
CPC classification number: G03B21/2006 , G03B21/2066
Abstract: In a projection system, a light source unit emits a first visible light beam, a second visible light beam having a longer wavelength than the first visible light beam, and a near infrared light beam. A spatial light modulation unit subjects the first visible light beam, the second visible light beam, and the near infrared light beam, all emitted from the light source unit, to spatial light modulation to produce a first image light beam, a second image light beam, and a third image light beam, respectively. A controller makes a projection optical system not only selectively project any one of a plurality of image light beams, including the first image light beam, the second image light beam, and the third image light beam, but also selectively project any two or more of the plurality of image light beams, by controlling the spatial light modulation unit in two different manners.
-
Patent Agency Ranking
公开(公告)号：US20230241409A1
公开(公告)日：2023-08-03
申请号：US18010488
申请日：2021-06-10
Inventor： Mitsuru NITTA , Shozo OSHIO , Chigusa FUJIWARA , Ryosuke SHIGITANI
CPC classification number: A61N5/0616 , C09K11/77 , A61N2005/0644 , A61N2005/0658
Abstract: Provided is a light irradiation type cosmetic apparatus including a light emitting device including: a light source that emits primary light; and a first phosphor that absorbs the primary light and converts the primary light into first wavelength-converted light having a wavelength longer than that of the primary light, wherein the light source is a solid-state light source having a rated output of 1 W or more, the primary light is light emitted from the solid-state light source, the first wavelength-converted light contains fluorescence based on an electron energy transition of Cr3+, and the first wavelength-converted light has a fluorescence spectrum having a fluorescence intensity maximum value in a wavelength range exceeding 710 nm.
-
公开(公告)号：US20230238768A1
公开(公告)日：2023-07-27
申请号：US18010911
申请日：2021-06-09
Inventor： Mitsuru NITTA , Chigusa FUJIWARA , Shozo OSHIO
IPC: H01S5/02251 , H01S5/00 , A61B1/06
CPC classification number: H01S5/02251 , H01S5/0087 , A61B1/0653 , A61B1/0638 , A61B1/043
Abstract: Provided is a light emitting device including a light source that emits primary light; and a wavelength converter that includes a first phosphor that absorbs the primary light and emits first wavelength-converted light, wherein the light emitting device emits output light including the first wavelength-converted light, the first wavelength-converted light is near-infrared light having a fluorescence intensity maximum value within a wavelength range of 700 nm or more and less than 800 nm, the first wavelength-converted light mainly contains a broad fluorescent component based on an electron energy transition of 4T2→4A2 of Cr3+, and the broad fluorescent component has a fluorescence spectrum half-width that is less than 100 nm.
-
公开(公告)号：US20240304764A1
公开(公告)日：2024-09-12
申请号：US18276022
申请日：2022-02-10
Inventor： Shozo OSHIO , Mitsuru NITTA , Ryosuke SHIGITANI
CPC classification number: H01L33/504 , C09K11/77348 , C09K11/7774 , C09K11/7776
Abstract: Disclosed is a light-emitting device provided with a solid-state light-emitting element and a phosphor and emits output light. The spectral distribution of the output light has a first light component and a second light component derived from fluorescence emitted by the phosphor, and has a first minimum value between the first light component and the second light component. The first light component is a fluorescent component having a maximum intensity value within a wavelength range of 560 nm or more and less than 700 nm. The second light component is a fluorescent component having a maximum intensity value within a wavelength range of 700 nm or more and less than 2500 nm. The maximum intensity value of the second light component is greater than that of the first light component. The first minimum value is less than 50% of the maximum intensity value of the second light component.
-
公开(公告)号：US20240128413A1
公开(公告)日：2024-04-18
申请号：US18275863
申请日：2022-02-01
Inventor： Mitsuru NITTA , Ryosuke SHIGITANI , Emi MIYAZAKI , Toru HIRANO
IPC: H01L33/50
CPC classification number: H01L33/504 , H01L33/507
Abstract: Provided is a wavelength converter including a phosphor ceramic containing a first phosphor that emits fluorescence due to a parity-forbidden transition, and a phosphor part containing a second phosphor that emits fluorescence due to a parity-allowed transition. A main surface of the phosphor ceramic has a concave and convex structure including a plurality of convex parts and a plurality of concave parts. The phosphor part is arranged inside the plurality of concave parts in the phosphor ceramic. Also provided is a light emitting device including the wavelength converter, and a solid-state light source that emits light with which the wavelength converter is irradiated and which has a light emission peak within a wavelength range of 400 nm or more and less than 500 nm.
-
10.发明公开公开(公告)号：US20240079532A1
公开(公告)日：2024-03-07
申请号：US18272647
申请日：2021-12-24
Inventor： Mitsuru NITTA , Ryosuke SHIGITANI , Shozo OSHIO
CPC classification number: H01L33/502 , C09K11/684 , H01L33/507
Abstract: Provided is a phosphor that contains Cr3+ and emits near-infrared light, wherein a host crystal of the phosphor has a crystal structure same as that of a compound Mg3Ga2GeO8, a fluorescence spectrum FF1 has a fluorescence peak FPF1 within a range of wavelengths of 700 or more and less than 900 nm, and a fluorescence spectrum data group FD that is an aggregate of spectral intensities of the fluorescence spectrum FF1 at every 10 nm exhibits a unimodal shape within the range of wavelengths of 700 or more and less than 900 nm.
-
-
-
-
-
-
-
-
-
Search Results
22
records
(took 0.02 seconds)
