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1. 发明授权

US11639783B2 Light source device and lens structure 有权
公开(公告)号：US11639783B2
公开(公告)日：2023-05-02
申请号：US17520865
申请日：2021-11-08
申请人： NICHIA CORPORATION
发明人： Daizo Kiba , Takashi Matsuda , Tsuyoshi Okahisa
IPC分类号： F21V5/04 , F21V17/08 , F21V13/04
摘要： A light source device includes: a light source having an upper surface including a light-emitting surface, the light source comprising a plurality of light-emitting parts arranged in a two-dimensional array; a lens located above and spaced apart from the light-emitting surface of the light source, wherein the lens comprises an optically functional part, and a flange part located along an outer periphery of the optically functional part; and a support part formed of a light-shielding material and configured to support at least the flange part of the lens. A surface area of a first surface of the optically functional part is greater than a surface area of a second surface of the optically functional part. The flange part defines at least one first recess in a surface located at a same side as the second surface.

2. 发明申请

US20230124386A1 NITRIDE PHOSPHOR, AND METHOD FOR PRODUCING SAME 有权
公开(公告)号：US20230124386A1
公开(公告)日：2023-04-20
申请号：US18047457
申请日：2022-10-18
申请人： NICHIA CORPORATION
发明人： Takayuki SHINOHARA
IPC分类号： C09K11/77 , C09K11/08
摘要： Provided is a nitride phosphor with high emission intensity. The nitride phosphor includes: a group 1 element(s) including at least one selected from the group consisting of lithium, sodium, and potassium; a group 2 element(s) including at least one selected from the group consisting of magnesium, calcium, strontium, and barium; a group 13 element(s) including at least one selected from the group consisting of aluminum, gallium, and indium; a group 14 element(s) including at least one selected from the group consisting of silicon, germanium, and tin; nitrogen; and cerium. The nitride phosphor includes, as a host crystal, a crystal having the same crystal structure as CaAlSiN3, wherein the internal quantum efficiency upon excitation at 450 nm is not less than 87%.

3. 发明申请

US20230121969A1 LIGHT SOURCE DEVICE 有权
公开(公告)号：US20230121969A1
公开(公告)日：2023-04-20
申请号：US17964999
申请日：2022-10-13
申请人： NICHIA CORPORATION
发明人： Tatsuya KANAZAWA , Masanobu TANAKA
IPC分类号： F21V8/00
摘要： A light source device includes: light-emitting portions arranged at least along an arrangement direction; one or more optical members including a first reflective surface and a second reflective surface, and configured to reflect light emitted from the plurality of light-emitting portions and emit the light in a predetermined direction; and a condenser lens configured to condense the light emitted from the one or more optical members. The first reflective surface is configured to reflect the light emitted from the plurality of light-emitting portions toward the second reflective surface. The second reflective surface is configured to reflect the light reflected by the first reflective surface. Each of the first reflective surface and the second reflective surface is a surface having a curvature in the arrangement direction. The curvature of the second reflective surface in the arrangement direction is greater than the curvature of the first reflective surface in the arrangement direction.

4. 发明申请

US20230121785A1 METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING ILLUMINATION DEVICE 有权
公开(公告)号：US20230121785A1
公开(公告)日：2023-04-20
申请号：US18085045
申请日：2022-12-20
申请人： NICHIA CORPORATION
发明人： Tsuyoshi OKAHISA , Tomohito SHINOMIYA , Daizo KIBA
IPC分类号： H01L33/48 , H01L33/58
摘要： A method for manufacturing a light-emitting device includes: forming a cover, which comprises: sandwiching a fixing member by a molding device, injecting a light-transmissive material into a space defined in the molding device, and hardening or curing the injected light-transmissive material, wherein the formed cover comprises an upper portion, a sidewall, and a recess, the cover being integrated with the fixing member such that the fixing member projects from a part of an outer lateral surface of the sidewall; disposing a light-transmissive member on a light extraction surface of a light-emitting element to be disposed on a substrate; and disposing the cover so that the light-emitting element is housed in the recess. The fixing member is formed of a material that is deformable due to a pressing force generated in the event of an engagement with a counterpart member.

5. 发明授权

US11631790B2 Resin molding, surface mounted light emitting apparatus and methods for manufacturing the same 有权
公开(公告)号：US11631790B2
公开(公告)日：2023-04-18
申请号：US17193239
申请日：2021-03-05
申请人： NICHIA CORPORATION
发明人： Masafumi Kuramoto , Tomohisa Kishimoto
IPC分类号： H01L33/48 , H01L33/62 , H01L33/26 , H01L33/32 , H01L33/34 , H01L33/44 , H01L33/56 , H01L23/00 , H01L33/64
摘要： The present invention provides a surface mounted light emitting apparatus which has long service life and favorable property for mass production, and a molding used in the surface mounted light emitting apparatus. The surface mounted light emitting apparatus comprises the light emitting device 10 based on GaN which emits blue light, the first resin molding 40 which integrally molds the first lead 20 whereon the light emitting device 10 is mounted and the second lead 30 which is electrically connected to the light emitting device 10, and the second resin molding 50 which contains YAG fluorescent material and covers the light emitting device 10. The first resin molding 40 has the recess 40c comprising the bottom surface 40a and the side surface 40b formed therein, and the second resin molding 50 is placed in the recess 40c. The first resin molding 40 is formed from a thermosetting resin such as epoxy resin by the transfer molding process, and the second resin molding 50 is formed from a thermosetting resin such as silicone resin.

6. 发明申请

US20230112283A1 POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND PRODUCTION METHOD THEREOF 有权
公开(公告)号：US20230112283A1
公开(公告)日：2023-04-13
申请号：US18046905
申请日：2022-10-14
申请人： NICHIA CORPORATION
发明人： Katsuyuki KITANO , Hayaki MATSUMOTO
IPC分类号： H01M4/505 , H01M4/525 , H01M10/0525 , C01G53/00
摘要： Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery, the active material including a lithium-transition metal composite oxide containing lithium, nickel, cobalt, and manganese, having a layered structure, having a ratio D50/DSEM of from 1 to 4, and having a ratio of a number of moles of nickel to a total number of moles of metals other than lithium of greater than 0.8 and less than 1, a ratio of a number of moles of cobalt to the total number of moles of metals other than lithium of less than 0.2, a ratio of a number of moles of manganese to the total number of moles of metals other than lithium of less than 0.2, and a ratio of the number of moles of manganese to a sum of the number of moles of cobalt and the number of moles of manganese of less than 0.58.

7. 发明申请

US20230109952A1 LIGHT-EMITTING DEVICE 有权
公开(公告)号：US20230109952A1
公开(公告)日：2023-04-13
申请号：US17907354
申请日：2021-02-10
申请人： NICHIA CORPORATION
发明人： Makiko IWASA , Yuji SATO
IPC分类号： H01L33/50 , H05B33/14
摘要： Provided is a light-emitting device having a high luminous flux.
The light-emitting device comprises a light-emitting element 11 that has a dominant wavelength in a range of 380 nm or more and 485 nm or less, and a fluorescent material layer 31 that includes a fluorescent material emitting light by being excited by light emitted from the light-emitting element 11, and a neodymium compound, wherein the light-emitting device emits light having a dominant wavelength in a range of 584 nm or more and 780 nm or less.

8. 发明授权

US11626705B2 Optical member holding device, semiconductor laser device, method of manufacturing optical member holding device, and method of manufacturing semiconductor laser device 有权
公开(公告)号：US11626705B2
公开(公告)日：2023-04-11
申请号：US17168058
申请日：2021-02-04
申请人： NICHIA CORPORATION
发明人： Hiroaki Kuroda , Tomonori Miyoshi
IPC分类号： H01S5/02257 , H01S5/02326 , H01S5/023 , H01S5/0233 , H01S5/0235 , H01S5/00 , H01S5/02212 , H01S5/024
摘要： An optical member holding device including a holding member, an optical member and an elastic member. The holding member has a recess defined by one or more lateral surfaces and a bottom surface with a through-hole opening at the bottom surface. The optical member is disposed on the bottom surface, and includes a light transmissive part. The optical member has an upper surface and one or more lateral surfaces. The elastic member consists of an inorganic material, and has a wavelike shape and disposed between the one or more lateral surfaces of the recess and the one or more lateral surfaces of the optical member so as to be in contact with the one or more lateral surfaces of the recess and the one or more lateral surfaces of the optical member to exert elastic force that secures the optical member to a predetermined location in the recess.

9. 发明授权

US11626543B2 Light emitting apparatus and production method thereof 有权
公开(公告)号：US11626543B2
公开(公告)日：2023-04-11
申请号：US16920243
申请日：2020-07-02
申请人： NICHIA CORPORATION
发明人： Tomonori Miyoshi , Kenji Ozeki , Tomoaki Tsuruha
IPC分类号： H01L33/50 , H01L25/075 , H01L33/54 , H01L33/62 , H01L33/48 , H01L33/58 , H01L33/56 , H01L33/60 , H01L33/64 , H01L25/16 , H01L27/15
摘要： A light emitting apparatus includes: an electrically insulating base member that has first and second sides extending in a width direction, and third and fourth sides extending in a length direction, wherein the third and fourth sides are longer than the first and second sides; a plurality of electrically conductive pattern portions; a plurality of light emitting devices mounted on the electrically conductive pattern portions, the light emitting devices being arrayed in the length direction; a protection element that is flip chip mounted on the electrically conductive pattern portions and located, in the plan view, between the light emitting devices and the third side of the base member in the width direction; a first resin part that has a frame shape; a second resin part that is located in the first resin part; and at least one transparent member located on the light emitting devices.

10. 发明授权

US11624865B2 Planar light source apparatus, display apparatus, and electronic device 有权
公开(公告)号：US11624865B2
公开(公告)日：2023-04-11
申请号：US17574645
申请日：2022-01-13
申请人： NICHIA CORPORATION
发明人： Shotaro Watanabe , Naoki Ishimi , Yoshinori Ito , Tomokazu Shimoda
IPC分类号： F21V8/00 , G02F1/01 , G02F1/13357
摘要： To provide a technique for suppressing brightness non-uniformity of an area illuminated by a light source and also suppressing a decline in contrast between areas caused by incidence of a luminous flux of the area to another area. Provided is a light guide plate including: a diverging portion which is provided on an opposite side of a light exit surface from which light is emitted, the diverging portion causing a luminous flux emitted from a light emitting element to diverge; and a restricting portion which is provided, when a prescribed range from the light emitting element on the light exit surface is defined as an illuminated area illuminated by the light emitting element, in at least a periphery of the illuminated area on the light exit surface and which deflects or shields light traveling from inside toward outside of the illuminated area to restrict traveling, toward a side of the light exit surface, of light traveling toward the outside of the illuminated area.

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