公开(公告)号：US20240030378A1

公开(公告)日：2024-01-25

申请号：US18478941

申请日：2023-09-29

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi OKAHISA ,  Shintaro NOMA

IPC: H01L33/08 ,  H01L33/58 ,  H01L33/50

CPC classification number: H01L33/08 ,  H01L33/58 ,  H01L33/507 ,  H01L33/387

Abstract: A light source device includes a substrate, a light source, a liquid crystal shutter, and a lens. The light source is supported by the substrate. The light source includes a plurality of light emission units two-dimensionally arranged. The liquid crystal shutter is disposed on the light source. The lens is disposed on the liquid crystal shutter. The liquid crystal shutter is configured to perform independent ON/OFF control in two or more regions corresponding to at least one of the light emission units.

公开(公告)号：US20240030379A1

公开(公告)日：2024-01-25

申请号：US18479061

申请日：2023-09-30

Applicant: NICHIA CORPORATION

Inventor： Shintaro NOMA ,  Tsuyoshi OKAHISA

IPC: H01L33/08 ,  H01L33/52 ,  H01L33/50

CPC classification number: H01L33/08 ,  H01L33/52 ,  H01L33/507 ,  H01L2933/0033

Abstract: A light source device includes a substrate and a light source. The light source includes a first light emission unit, a plurality of second light emission units, and a plurality of third light emission units arranged two-dimensionally on the substrate. The first light emission unit is arranged at a center among the light emission units, and includes a first light emission element having a first light emission face. The second light emission units surround the first light emission unit, and include a plurality of second light emission elements, respectively, each having a second light emission face. The third light emission units surround the second light emission units, and include a plurality of third light emission elements, respectively, each having a third light emission faces. The first light emission face and the second light emission faces all have the same areas. The third light emission faces have different areas.

公开(公告)号：US20230101483A1

公开(公告)日：2023-03-30

申请号：US17953032

申请日：2022-09-26

Applicant: NICHIA CORPORATION

Inventor： Shintaro NOMA ,  Tsuyoshi OKAHISA

IPC: F21K9/66 ,  F21K9/64

Abstract: A light source includes a plurality of light emitting elements, a light blocking member and a plurality of light-transmissive members. The light blocking member collectively supports the plurality of light emitting elements with the light blocking member being disposed in regions between the plurality of light emitting elements and in an outer periphery region located outwardly of the plurality of light emitting elements in a plan view. An upper surface of each of the plurality of the light emitting elements is exposed from the light blocking member. The plurality of light-transmissive members include a plurality of first light-transmissive members respectively disposed on the plurality of light emitting elements, and a second light-transmissive member disposed on the light blocking member in the outer periphery region.

公开(公告)号：US20250113675A1

公开(公告)日：2025-04-03

申请号：US18829692

申请日：2024-09-10

Applicant: NICHIA CORPORATION

Inventor： Yuta OKA ,  Shintaro NOMA

IPC: H01L33/50

Abstract: A light emitting device includes: an inner light emitting part including an inner light emitting element, and an inner wavelength conversion member disposed on the inner light emitting element, and a plurality of outer light emitting parts disposed around the inner light emitting part and connected in parallel to one another, each outer light emitting part including an outer light emitting element, and an outer wavelength conversion member disposed on the outer light emitting element. The outer light emitting parts include a first light emitting part that includes a first light emitting element and a first wavelength conversion member, and a second light emitting part that includes a second light emitting element and a second wavelength conversion member.

公开(公告)号：US20240035632A1

公开(公告)日：2024-02-01

申请号：US18481913

申请日：2023-10-05

Applicant: NICHIA CORPORATION

Inventor： Shintaro NOMA ,  Tsuyoshi OKAHISA

IPC: F21K9/66 ,  F21K9/64

CPC classification number: F21K9/66 ,  F21K9/64 ,  F21Y2115/10

Abstract: A light source includes a plurality of light emitting elements, a light blocking member, and a plurality of light-transmissive members. The light emitting elements are arranged in a matrix to form a rectangular shape as a whole in a plan view. The light blocking member covers lateral surfaces of the light emitting elements with an upper surface of each of the light emitting elements being exposed from the light blocking member. The light-transmissive members arranged in a matrix to form a rectangular shape as a whole in the plan view. The light-transmissive members include a plurality of first light-transmissive members respectively disposed on the light emitting elements, and a plurality of second light-transmissive members disposed on the light blocking member in an outer periphery region located outwardly of the light emitting elements in the plan view.

公开(公告)号：US20240318794A1

公开(公告)日：2024-09-26

申请号：US18735265

申请日：2024-06-06

Applicant: NICHIA CORPORATION

Inventor： Shintaro NOMA ,  Tsuyoshi OKAHISA

IPC: F21K9/66 ,  F21K9/64 ,  F21Y115/10

CPC classification number: F21K9/66 ,  F21K9/64 ,  F21Y2115/10

Abstract: A light source includes a plurality of light-transmissive members and a plurality of light emitting elements. Upper surfaces of the light-transmissive members are flush with each other. The light-transmissive members include a plurality of first light-transmissive members arranged to form a rectangular shape as a whole in a plan view, and a plurality of second light-transmissive members arranged in a rectangular frame shape as a whole surrounding the first light-transmissive members in the plan view. Each of the second light-transmissive members is smaller than each of the first light-transmissive members in the plan view. The light emitting elements are arranged under the first light-transmissive members with none of the light emitting elements being arranged under the second light-transmissive members.

公开(公告)号：US20230006094A1

公开(公告)日：2023-01-05

申请号：US17852338

申请日：2022-06-28

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi OKAHISA ,  Shintaro NOMA

IPC: H01L33/08 ,  H01L33/50 ,  H01L33/58

Abstract: A light source includes a plurality of light emitting elements one-dimensionally or two-dimensionally arranged, a plurality of wavelength conversion members, a plurality of first light diffusing members, a light transmitting member, a second light diffusing member, and a light shielding member. Each of the light emitting elements has a light emission surface and an electrode surface. Each of the wavelength conversion members is disposed on the light emission surface of a respective one of the light emitting elements. Each of the first light diffusing members is disposed on a respective one of the wavelength conversion members. The light transmitting member continuously covers the first light diffusing members. The second light diffusing member is disposed on the light transmitting member. The light shielding member covers lateral surfaces of the light emitting elements, lateral surfaces of the wavelength conversion members, and lateral surfaces of the first light diffusing members.

公开(公告)号：US20220173271A1

公开(公告)日：2022-06-02

申请号：US17537467

申请日：2021-11-29

Applicant: NICHIA CORPORATION

Inventor： Shintaro NOMA ,  Tsuyoshi OKAHISA

IPC: H01L33/08 ,  H01L33/50 ,  H01L33/52

Abstract: A light source includes light emission units and a light shielding member. At least one of the light emission units includes a light emitting element, a wavelength conversion member, and a light transmissive member. The light transmissive member includes a first region positioned above the light emitting element and a second region positioned outward from the first region. The second region has a thickness smaller than a thickness of the first region. The wavelength conversion member is larger than the light emission face of the light emitting element in a top view. The light shielding member is continuously disposed between adjacent ones of the light emission units and covers a lateral face of the light emitting element and a lateral face of the wavelength conversion member. A lateral face of the light transmissive member in the light emission unit is at least partially exposed from the light shielding member.