公开(公告)号：US20160300982A1

公开(公告)日：2016-10-13

申请号：US15095937

申请日：2016-04-11

Applicant: NICHIA CORPORATION

Inventor： Naoya SAKO ,  Takashi OHARA ,  Yoshiki INOUE ,  Yuki SHIBUTANI ,  Yoshihito KAWAUCHI ,  Kazuyuki TAKEICHI ,  Yasunori NAGAHAMA

IPC: H01L33/22 ,  H01L33/00 ,  C30B29/40 ,  C30B33/10 ,  C30B33/12 ,  C30B25/18 ,  H01L33/32 ,  C30B29/20

CPC classification number: H01L33/22 ,  C30B25/183 ,  C30B25/186 ,  C30B29/20 ,  C30B29/403 ,  C30B29/406 ,  C30B33/08 ,  C30B33/10 ,  C30B33/12 ,  H01L21/02002 ,  H01L21/308 ,  H01L33/007 ,  H01L33/24 ,  H01L33/32 ,  H01L2933/0091

Abstract: A sapphire substrate provided with a plurality of projections on a principal surface on which a nitride semiconductor is grown to form a nitride semiconductor light emitting element. The projections have a substantially triangular pyramidal-shape the projections having a plurality of side surfaces and a pointed top. The side surfaces have an inclination angle of between 53° and 59° from a bottom of the projections. The side surfaces are crystal-growth-suppressed surfaces on which a growth of the nitride semiconductor is suppressed relative to a portion of the principal surface located between adjacent projections. A bottom of the projections has a substantially triangular shape having three outwardly curved arc-shaped sides, and each of the side surfaces has a substantially triangular shape having vertexes located at the top of the projection and at both ends of a respective side of the bottom of the projection.

Abstract translation: 蓝宝石衬底，其在其上生长氮化物半导体的主表面上设置有多个突起，以形成氮化物半导体发光元件。 突起具有基本上三角锥形的突起，其具有多个侧表面和尖顶。 侧表面与凸起的底部之间具有53°和59°之间的倾斜角度。 侧表面是相对于位于相邻突起之间的主表面的一部分抑制氮化物半导体生长的晶体生长抑制表面。 突起的底部具有三个具有三个向外弯曲的弧形侧面的三角形形状，并且每个侧表面具有基本上三角形的形状，其顶点位于突出部的顶部并且在底部的相应侧的两端 的投影。

公开(公告)号：US20230013159A1

公开(公告)日：2023-01-19

申请号：US17864066

申请日：2022-07-13

Applicant: NICHIA CORPORATION

Inventor： Satoshi YOSHINAGA ,  Takuya NAKABAYASHI ,  Yuki SHIBUTANI ,  Yoichi BANDO ,  Yasushi OKAMOTO

IPC: F21V8/00

Abstract: A planar light source includes: a light guide member, a light source including a light-emitting element and a first light adjustment member and being disposed in a first hole of the light guide member, a first light-transmissive member disposed in the first hole between a lateral surface of the light source and the light guide member and on the light source, and a second light adjustment member disposed on the first light-transmissive member. A transmittance of the first light-transmissive member is higher than a transmittance of the first light adjustment member and a transmittance of the second light adjustment member with respect to light emitted from the light source. The first light-transmissive member includes a first light-transmissive portion 1ocated between the first light adjustment member and the second light adjustment member, and a second light-transmissive portion 1ocated between the lateral surface of the light source and the light guide member.

公开(公告)号：US20230378407A1

公开(公告)日：2023-11-23

申请号：US18319190

申请日：2023-05-17

Applicant: NICHIA CORPORATION

Inventor： Toru HASHIMOTO ,  Yuki SHIBUTANI ,  Masaya MIYAZAKI ,  Masato TANABE

IPC: H01L33/60

CPC classification number: H01L33/60 ,  H01L2933/0058

Abstract: A light-emitting module includes a light source part, a light-transmitting member including a first light-transmitting part and a second light-transmitting part, the second light-transmitting part is positioned at an upper side of the light source part and the first light-transmitting part, and a light-adjusting member located at an upper side of the light source part, the first light-transmitting part, and the second light-transmitting part, wherein the first light-transmitting part contacts a lateral surface of the light source part, the light-adjusting member includes a through-hole positioned away from the light source part in a plan view, the light-transmitting member includes a recess communicating with the through-hole, and at least a portion of the recess is positioned lower than a lower surface of the light-adjusting member.

公开(公告)号：US20230030724A1

公开(公告)日：2023-02-02

申请号：US17868056

申请日：2022-07-19

Applicant: NICHIA CORPORATION

Inventor： Yasumasa YAMAMOTO ,  Yuki SHIBUTANI ,  Makoto KATSUNO

IPC: G02F1/13357

Abstract: A light-emitting module includes a light guide member including a first light guide portion including a first upper surface, a first lower surface, a first lateral surface, a first extending portion facing the first lateral surface and extending continuously from a portion of the first lateral surface, and a first hole portion, and a second light guide portion including a second upper surface, a second lower surface, a second lateral surface, a second extending portion facing the second lateral surface and extending continuously from a portion of the second lateral surface, and a second hole portion; a light source unit including a first light source disposed in the first hole portion, and a second light source disposed in the second hole portion; and a first light-reflective member covering at least a portion of the first lateral surface facing the first extending portion and at least a portion of the first extending portion facing the first lateral surface, in which the first extending portion faces the second extending portion.