公开(公告)号：US20250129930A1

公开(公告)日：2025-04-24

申请号：US18917233

申请日：2024-10-16

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi OKAHISA ,  Norimasa YOSHIDA

IPC: F21V33/00 ,  F21V3/06 ,  F21V5/04 ,  F21V17/06

Abstract: A light-emitting module includes: a substrate; a light source disposed on the substrate; an electronic component disposed on the substrate and separated from the light source; and a first light-transmissive member including a first lens and a first support, and covering the light source and the electronic component, the first support supporting the first lens and including a light diffusing substance. A light diffusivity of the first support is higher than a light diffusivity of the first lens. The first lens overlaps the light source and the first support overlaps the electronic component in a top view.

公开(公告)号：US20250035287A1

公开(公告)日：2025-01-30

申请号：US18710729

申请日：2022-11-30

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA ,  Saiki YAMAMOTO

IPC: F21V14/02 ,  F21V5/00 ,  F21V5/04 ,  F21V19/00 ,  F21Y113/13

Abstract: A light emitting module includes: a substrate; a plurality of light sources fixed on the substrate and generating individually controllable outputs; a light shielding member disposed between the light sources; a first lens that is disposed above the light sources and on which the light emitted from each of the light sources becomes incident; and a drive unit capable of rotating the substrate. The light sources include a first light source and a second light source. The angle formed by the axis of rotation of the substrate and the optical axis of first light emitted by the first light source and exiting the first lens differs from the angle formed by the axis of rotation and the optical axis of second light emitted by the second light source and exiting the first lens. The second light can irradiate a first circular track having the axis of rotation as its center.

公开(公告)号：US20240401772A1

公开(公告)日：2024-12-05

申请号：US18675820

申请日：2024-05-28

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: F21V5/00 ,  F21V5/04 ,  F21Y105/16 ,  F21Y113/00

Abstract: An optical member includes: a plurality of light controllers, each including: a first surface, a convex surface that is located opposite to the first surface and is curved in a direction away from the first surface, and a concave surface that opens at the first surface and is curved from the first surface toward the convex surface. A radius of curvature of the concave surface is less than a radius of curvature of the convex surface. In a plan view, a center of the concave surface coincides with a center of the convex surface. A first distance from the first surface to a topmost portion of the convex surface is 4.5 times or more a second distance from the first surface to a deepest portion of the concave surface.

公开(公告)号：US20240044473A1

公开(公告)日：2024-02-08

申请号：US18490549

申请日：2023-10-19

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

IPC: F21V5/04 ,  F21V5/00

CPC classification number: F21V5/045 ,  F21V5/008

Abstract: A light source device includes: a plurality of independently operable light emitting devices; a first lens having a lower face that faces the light emitting devices, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting devices enters, and a light guide part located outward of the entrance part and configured to guide the light entering the entrance part. The upper face of the first lens comprises a plurality of annular protruding portions.

公开(公告)号：US20230400169A1

公开(公告)日：2023-12-14

申请号：US18452687

申请日：2023-08-21

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

IPC: F21V13/04 ,  F21V5/04 ,  G02B27/30

CPC classification number: F21V13/04 ,  F21V5/045 ,  G02B27/30 ,  F21V2200/00

Abstract: A light source device includes: a light emitting device having an upper face including a light emission face; and a first lens having a lower face that faces the light emitting device, and an upper face opposite the lower face. The lower face of the first lens includes: an entrance part located in a center of the lower face where light from the light emitting device enters, and a light guide part located outward of the entrance part and configured to guide the light entering the entrance part. The upper face of the first lens includes a plurality of annular protruding portions.

公开(公告)号：US20220328739A1

公开(公告)日：2022-10-13

申请号：US17706092

申请日：2022-03-28

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: H01L33/58 ,  H01L33/50

Abstract: A light emitting device includes: a light emitting unit; an optical member configured to transmit or pass light emitted by the light emitting unit, the optical member including: a first region configured to transmit or pass light having a first chromaticity; and a second region configured to transmit or pass light having a second chromaticity different from the first chromaticity; and a movable member configured to move to change a distance between the light emitting unit and the optical member along an optical axis of the light emitting unit.

公开(公告)号：US20220316683A1

公开(公告)日：2022-10-06

申请号：US17713727

申请日：2022-04-05

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Shinya MATSUOKA ,  Yuta OKA

IPC: F21V5/04 ,  F21V5/00 ,  F21V9/30

Abstract: A light source device includes: a combined body including light emitting portions including: a first light emitting portion including a first light emitting element, and a second light emitting portion provided separately from and along an outer periphery of the first light emitting portion in a plan view, the second light emitting portion including a plurality of second light emitting elements; and a lens disposed above the combined body. The first light emitting element and the plurality of second light emitting elements are arrayed in first and second directions that are perpendicular to each other. The first light emitting element and the plurality of second light emitting elements are controllable to be lit independently.

公开(公告)号：US20210231291A1

公开(公告)日：2021-07-29

申请号：US17153646

申请日：2021-01-20

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

IPC: F21V5/00 ,  H04N5/225 ,  F21V5/04 ,  F21V5/08 ,  F21V33/00 ,  G02B3/02

Abstract: A light source device includes a plurality of light emitting parts, a first lens, and an optical lens. Each light emitting part is configured to emit light from the light emitting surface at a first full-width half-maximum and is configured to be individually turned on. The optical lens has a first surface including incident regions and a second surface including emission regions. A minimum distance between the first surface of the optical lens and the first lens is 0.1 mm or more and 1.0 mm or less. A light emitted from each of the light emitting parts enters the optical lens through the first lens, the light being emitted from the first lens at a second full-width half-maximum smaller than the first full-width half-maximum, such that lights emitted from two or more of the light emitting parts are irradiated to two or more corresponding irradiation regions.

公开(公告)号：US20240328600A1

公开(公告)日：2024-10-03

申请号：US18740900

申请日：2024-06-12

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

IPC: F21V14/02 ,  F21V14/00 ,  F21Y115/10 ,  G03B7/17 ,  G03B15/05

CPC classification number: F21V14/02 ,  F21V14/006 ,  G03B7/17 ,  G03B15/05 ,  F21Y2115/10 ,  G03B2215/0567

Abstract: A light source device includes: a plurality of light-emitting units, each including a light-emitting surface; an optical member configured to allow light emitted from the light-emitting units to be transmitted or passed therethrough, the optical member including: one or a plurality of first regions from which light of a first chromaticity is extracted upon operation of the light-emitting units, and one or a plurality of second regions from which light of a second chromaticity different from the first chromaticity is extracted upon operation of the light-emitting units; a first movement assembly configured to cause a relative movement between the plurality of light-emitting units and the optical member so that the light-emitting surface and the optical member face one another; and a control unit configured to: control light emission of each of the plurality of light-emitting units, and control operation of the first movement assembly.

公开(公告)号：US20240200754A1

公开(公告)日：2024-06-20

申请号：US18592666

申请日：2024-03-01

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Shinya MATSUOKA ,  Yuta OKA

IPC: F21V5/04 ,  F21V5/00

CPC classification number: F21V5/045 ,  F21V5/007

Abstract: A light source device includes: a combined body comprising light emitting portions including: a first light emitting portion comprising a first light emitting element, and a second light emitting portion provided separately from and along an outer periphery of the first light emitting portion in a plan view, the second light emitting portion comprising a plurality of second light emitting elements; and a lens disposed above the combined body. The first light emitting element and the plurality of second light emitting elements are arrayed in first and second directions that are perpendicular to each other. The first light emitting element and the plurality of second light emitting elements are controllable to be lit independently.