公开(公告)号：US20230243483A1

公开(公告)日：2023-08-03

申请号：US18295007

申请日：2023-04-03

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

IPC: F21V5/00 ,  F21V5/04 ,  F21V33/00 ,  G02B3/02 ,  F21V5/08 ,  H04N23/56

CPC classification number: F21V5/007 ,  F21V5/045 ,  F21V33/0052 ,  G02B3/02 ,  F21V5/08 ,  H04N23/56 ,  F21Y2105/10

Abstract: A light source device includes: light emitting parts arranged in a matrix, each having an upper surface that includes a light emitting surface, each of the light emitting parts being configured to emit light from the light emitting surfaces and at least one of the light emitting parts being configured to be individually turned on, wherein each of the light emitting parts includes a light emitting element, a wavelength conversion member covering the upper surface of the light emitting element, and a light-reflective member covering lateral surfaces of the light emitting element and lateral surfaces of the wavelength conversion member, and wherein the light-reflective members of the light-emitting parts are directly adjacent to each other; and an optical lens located above the light emitting surfaces of the light emitting parts. Sizes of the light emitting surfaces of at least some of the light emitting parts are different from each other.

公开(公告)号：US20220350074A1

公开(公告)日：2022-11-03

申请号：US17725991

申请日：2022-04-21

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: F21V8/00

Abstract: A light-emitting device includes: a light-emitting unit having a light-emitting surface; a light guide member configured to guide incident light from the light-emitting unit, the light guide member including: a total reflection portion configured to reflect the incident light from the light-emitting unit, and a Fresnel lens portion where light reflected by the total reflection portion is incident; and a movement mechanism configured to move the light guide member relative to the light-emitting unit in a direction that intersects a center axis of the light-emitting surface.

公开(公告)号：US20240213420A1

公开(公告)日：2024-06-27

申请号：US18540104

申请日：2023-12-14

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: H01L33/58 ,  H01L25/075 ,  H01L33/50

CPC classification number: H01L33/58 ,  H01L25/0753 ,  H01L33/507

Abstract: A light emitting unit includes: a substrate; a light source disposed on the substrate and having a light emitting surface; and a lens unit including: a lens disposed above the light source, and an optical member fixed to the lens and disposed between the light source and the lens, the optical member including: a first region facing the light emitting surface, and a second region provided around the first region. A light transmittance of the first region is higher than a light transmittance of the second region. The lens unit is not fixed to the substrate.

公开(公告)号：US20220416134A1

公开(公告)日：2022-12-29

申请号：US17902649

申请日：2022-09-02

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi OKAHISA ,  Norimasa YOSHIDA

IPC: H01L33/58 ,  F21S41/663 ,  G03B15/02 ,  H01L27/15 ,  H01L33/50 ,  G03B15/05

Abstract: A light source device includes: a mounting board; a plurality of light-emitting parts disposed on the mounting board, each of the plurality of light-emitting parts being configured to be individually turned on; a light-shielding member defining an opening; and a light-guide member supported by the light-shielding member, the light-guide member comprising a Fresnel lens portion, wherein, in a top view, the Fresnel lens portion is located within an area of the opening of the light-shielding member. In the top view, irradiation areas of the respective light-emitting parts are at least partially separated from each other.

公开(公告)号：US20220252241A1

公开(公告)日：2022-08-11

申请号：US17731991

申请日：2022-04-28

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA ,  Tsuyoshi OKAHISA

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

Abstract: A light source device includes: a light emitting device having an upper face comprising a light emission face; a first lens facing the light emitting device; and a second lens facing the first lens. A lower face of the first lens facing the light emitting device includes an entrance part provided in a center of the lower face where light from the light emitting device enters, and a light guide part provided on an outside of the entrance part to guide the light entering the entrance part. A lower face of the second lens facing the first lens includes a Fresnel lens face composed of a plurality of annular protruding portions.

公开(公告)号：US20250020318A1

公开(公告)日：2025-01-16

申请号：US18903082

申请日：2024-10-01

Applicant: NICHIA CORPORATION

Inventor： Tsuyoshi OKAHISA ,  Norimasa YOSHIDA

IPC: F21V33/00 ,  F21K9/69 ,  F21Y105/10 ,  G02B3/02 ,  H04N23/56

Abstract: A light source device includes: a plurality of light emitting parts, each having an upper surface that includes a light emitting surface; an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having: a first surface including a first incident region, and a second surface including a second incident region; and a light converging member located between the light emitting parts and the optical lens, the light converging member including: a plurality of light entering portions, each corresponding to a respective one of a plurality of light emitting parts and covering the light emitting surface of the respective one of the light emitting parts, and a plurality of light emission portions, each corresponding to a respective one of the plurality of light entering portions.

公开(公告)号：US20240339573A1

公开(公告)日：2024-10-10

申请号：US18745364

申请日：2024-06-17

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: H01L33/58 ,  H01L25/075 ,  H01L25/16 ,  H01L27/15

CPC classification number: H01L33/58 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156

Abstract: A light-emitting device includes: an array light source comprising a plurality of light-emitting units arranged in an array pattern, each light-emitting unit including a light-emitting surface, wherein the light-emitting surfaces of adjacent ones of the light-emitting units are located at a first light-emitting surface interval; a first lens configured to cause light emitted by the array light source to irradiate a region to be irradiated; a movement mechanism configured to cause the first lens and the array light source to move relative to each other along a direction intersecting an optical axis of the first lens; and a control unit comprising one or more electrical circuits or one or more central processing units, the control unit configured to: control light emission of each of the plurality of light-emitting units in a predetermined period, and control operation of the movement mechanism.

公开(公告)号：US20230408754A1

公开(公告)日：2023-12-21

申请号：US18458275

申请日：2023-08-30

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: F21V8/00

CPC classification number: G02B6/0088 ,  G02B6/0021 ,  G02B6/0038

Abstract: A light-emitting device includes: a light-emitting unit having a light-emitting surface; a light guide member configured to guide light from the light-emitting unit, the light guide member having a first surface that includes an incident portion on which light from the light-emitting unit is incident, and a second surface from which the light exits, the second surface including a plurality of concentric protrusions; and a movement mechanism configured to move the light guide member such that the incident portion and the plurality of concentric protrusions move together relative to the light-emitting unit in a first direction that intersects a center axis of the light-emitting surface.

公开(公告)号：US20230290915A1

公开(公告)日：2023-09-14

申请号：US18318944

申请日：2023-05-17

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: H01L33/58 ,  H01L25/075 ,  F21V5/04 ,  F21V14/06

CPC classification number: H01L33/58 ,  H01L25/0753 ,  F21V5/045 ,  F21V14/06

Abstract: A light-emitting module includes: a first light source unit including: a first light source, and a first lens on which light emitted from the first light source is incident; a driver configured to rotate the first lens; and a controller configured to, conjunctively with the driver, control an output of the first light source. A central axis of light emitted from the first lens is oblique to a rotation axis of the first lens. The controller is configured to control the output of the first light source according to a position along a trajectory of the central axis of the light emitted from the first lens.

公开(公告)号：US20220333751A1

公开(公告)日：2022-10-20

申请号：US17710158

申请日：2022-03-31

Applicant: NICHIA CORPORATION

Inventor： Norimasa YOSHIDA

IPC: F21S10/02 ,  F21V9/30 ,  F21V5/00 ,  F21V5/04 ,  F21V7/00

Abstract: A light emitting module includes: a first light source comprising a first light emitting element configured to emit first light, and a first wavelength conversion member configured to convert a wavelength of a portion of the first light and to emit second light, such that the first light source is configured to output light that includes the first light and the second light; a first lens on which the light output from the first light source is incident; a drive unit configured to change a distance between the first lens and the first light source so as to change an amount of outgoing second light from the first lens; a second light source configured to output light having a chromaticity that is different from that of the light output from the first light source; and a second lens on which the light output from the second light source is incident.