公开(公告)号：US09455382B2

公开(公告)日：2016-09-27

申请号：US14323684

申请日：2014-07-03

Applicant: NICHIA CORPORATION

Inventor： Daisuke Iwakura

IPC: H01L33/00 ,  H01L33/50 ,  H01L33/56

CPC classification number: H01L33/508 ,  H01L33/50 ,  H01L33/502 ,  H01L33/504 ,  H01L33/56 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

Abstract: A light emitting device comprising: a package having a recess; a light emitting element mounted in the recess of the package; a transmissive member provided above the light emitting element; a sealing resin that seals the recess of the package; a first fluorescent material contained in the transmissive member; and a second fluorescent material contained in the sealing resin and having a specific gravity different from that of the first fluorescent material, wherein a greater amount of the second fluorescent material is distributed to a side of the light emitting element than above the light emitting element, and a side surface of the light emitting element is exposed on the sealing resin.

Abstract translation: 一种发光器件，包括：具有凹部的封装; 安装在所述封装的所述凹部中的发光元件; 设置在所述发光元件上方的透射构件; 密封树脂，其密封包装的凹部; 包含在透射构件中的第一荧光材料; 以及包含在所述密封树脂中并且具有与所述第一荧光材料不同的比重的第二荧光材料，其中比所述发光元件上方更大量的所述第二荧光材料分布在所述发光元件的一侧， 并且发光元件的侧表面暴露在密封树脂上。

公开(公告)号：US12241611B2

公开(公告)日：2025-03-04

申请号：US18320344

申请日：2023-05-19

Applicant: NICHIA CORPORATION

Inventor： Daisuke Iwakura

IPC: F21S43/20 ,  B60Q1/34 ,  B60Q1/44 ,  C09K11/64 ,  C09K11/77 ,  F21S43/16 ,  F21V9/08 ,  F21V9/32 ,  F21V9/40 ,  H01L25/075 ,  H01L33/48 ,  H01L33/50 ,  H01L33/60 ,  F21W103/20 ,  F21W103/35

Abstract: A lighting apparatus includes light emitting elements having an emission peak wavelength of 400 to 510 nm, a first phosphor having an emission peak wavelength of 485 to 700 nm, a second phosphor having an emission peak wavelength of 510 to 590 nm, a third phosphor having an emission peak wavelength of 600 to 700 nm, and a color filter having transmittance for light with a wavelength of 600 to 730 nm that is 80% or more and transmittance for light with a wavelength of 410 to 480 nm that is 3% or more and 50% or less. The color filter transmits a part of light emitted from the first phosphor, at least a part of light emitted from the second phosphor, and at least a part of light emitted from the third phosphor. Light transmitted through the color filter is emitted to the outside.

公开(公告)号：US12001044B2

公开(公告)日：2024-06-04

申请号：US18046907

申请日：2022-10-14

Applicant: NICHIA CORPORATION

Inventor： Takuya Nakabayashi ,  Daisuke Iwakura ,  Yoichi Bando ,  Yasunori Shinomiya ,  Satoshi Yoshinaga

IPC: F21V8/00

CPC classification number: G02B6/0045 ,  G02B6/0055

Abstract: A light emitting module includes a light source, a light guide member, and first and second light reflective members. The light guide member is configured to transmit light from the light source. The light guide member having an upper surface and a lower surface opposite to the upper surface. The first light reflective member is arranged on a lower surface side of the light guide member. The first light reflective member has a lower surface. The first light reflective member includes a first resin, and a first reflective body having a refractive index higher than a refractive index of the first resin. The second light reflective member is arranged on a lower surface side of the first light reflective member. The second light reflective member includes a second resin, and a second reflective body having a refractive index lower than a refractive index of the second resin.

公开(公告)号：US11450790B2

公开(公告)日：2022-09-20

申请号：US16833552

申请日：2020-03-28

Applicant: NICHIA CORPORATION

Inventor： Chihiro Yamada ,  Daisuke Iwakura

IPC: H01L33/50 ,  H01L33/62 ,  H01L33/60 ,  H01L33/32 ,  H01L33/48 ,  H01L33/56 ,  C09K11/66 ,  C09K11/77 ,  C09K11/08

Abstract: The red light-emitting device includes a light source, a first layer covering at least a portion of the light source and containing a fluoride phosphor converting light emitted from the light source, and a second layer covering at least a portion of the first layer and containing a nitride phosphor converting light emitted from the light source and/or the first layer. An emission intensity ratio at an emission peak wavelength of the light source is greater than 0 and 0.1 or less, and the emission intensity ratio at the wavelength of the maximum emission peak in an emission spectrum of the light-emitting device is greater than 2.8, supposing the reference emission intensity that is the minimum emission intensity within the range of plus or minus 15 nm or 30 nm from the wavelength of the maximum emission peak in the emission spectrum of the light-emitting device is 1.

公开(公告)号：US11415738B2

公开(公告)日：2022-08-16

申请号：US17374066

申请日：2021-07-13

Applicant: NICHIA CORPORATION

Inventor： Daisuke Iwakura

IPC: F21V8/00 ,  H01L33/58 ,  H01L33/60 ,  G02F1/13357 ,  F21V5/04 ,  F21V7/00 ,  F21Y105/16

Abstract: A light-emitting module includes: a light source; a light guide plate including an upper surface and a lower surface, the lower surface being at a side opposite to the upper surface, the light guide plate being configured to guide light from the light source; a first light-reflective member located at a lower surface side of the light guide plate, wherein the first light-reflective member includes: a first resin member, and a first reflector, wherein a refractive index of the first reflector is lower than a refractive index of the first resin member; and a second light-reflective member located at a lower surface side of the first light-reflective member, wherein the second light-reflective member includes: a second resin member, and a second reflector, wherein a refractive index of the second reflector is higher than a refractive index of the second resin member.

公开(公告)号：US09484507B2

公开(公告)日：2016-11-01

申请号：US14318320

申请日：2014-06-27

Applicant: NICHIA CORPORATION

Inventor： Daisuke Iwakura

IPC: H01L33/00 ,  H01L33/50 ,  H01L33/54

CPC classification number: H01L33/54 ,  H01L33/508 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/8592 ,  H01L2933/0033 ,  H01L2933/005 ,  H01L2924/00014

Abstract: A light emitting device comprises a package having a recess; a light emitting element mounted in the recess of the package; a light transmissive member provided above the light emitting element; a sealing resin that seals the recess of the package; and a fluorescent material contained in the sealing resin. The fluorescent material is distributed to a side of the light emitting element in a greater amount than to above the light emitting element, a side surface of the light emitting element is exposed to the sealing resin, and a portion of the light transmissive member protrudes from the sealing resin.

Abstract translation: 发光器件包括具有凹部的封装; 安装在所述封装的所述凹部中的发光元件; 设置在所述发光元件上方的透光构件; 密封树脂，其密封包装的凹部; 和包含在密封树脂中的荧光材料。 荧光材料以比发光元件上方更大的量分布在发光元件的一侧，发光元件的侧表面暴露于密封树脂，并且透光部件的一部分从 密封树脂。