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公开(公告)号：US12218294B2
公开(公告)日：2025-02-04
申请号：US17902649
申请日：2022-09-02
Applicant: NICHIA CORPORATION
Inventor： Tsuyoshi Okahisa , Norimasa Yoshida
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.
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公开(公告)号：US11946637B2
公开(公告)日：2024-04-02
申请号：US17713727
申请日：2022-04-05
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida , Shinya Matsuoka , Yuta Oka
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.
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公开(公告)号：US11782205B2
公开(公告)日：2023-10-10
申请号：US17725991
申请日：2022-04-21
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 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.
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公开(公告)号：US12222578B2
公开(公告)日：2025-02-11
申请号：US18470379
申请日：2023-09-19
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida
Abstract: A light emitting module includes a light source, a first lens configured to transmit light from the light source and including at least a portion that is elastically deformable, and an actuator configured to move the first lens in a direction along an optical axis of the first lens. The light source includes a contact portion with which the first lens comes into contact. The actuator is configured to move the first lens to change a state of the first lens relative to the contact portion of the light source.
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公开(公告)号：US11828453B2
公开(公告)日：2023-11-28
申请号：US17731945
申请日：2022-04-28
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida , Tsuyoshi Okahisa
Abstract: A light source device includes: a plurality of independently operable light emitting devices; a first lens facing the light emitting devices; and a second lens facing the first lens. A lower face of the first lens facing the light emitting devices includes: an entrance part located in a center where light from the light emitting devices enters, and a light guide part located outward of the entrance part and configured to guide light entering the entrance part. A lower face of the second lens facing the first lens includes a Fresnel lens face including a plurality of annular protruding portions.
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Patent Agency Ranking
公开(公告)号：US12264816B2
公开(公告)日：2025-04-01
申请号：US18592666
申请日：2024-03-01
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida , Shinya Matsuoka , Yuta Oka
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.
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公开(公告)号：US12191429B2
公开(公告)日：2025-01-07
申请号：US17706092
申请日：2022-03-28
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida
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.
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公开(公告)号：US12158256B2
公开(公告)日：2024-12-03
申请号：US18458275
申请日：2023-08-30
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida
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.
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公开(公告)号：US11846412B2
公开(公告)日：2023-12-19
申请号：US18295007
申请日：2023-04-03
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida , Tsuyoshi Okahisa
CPC classification number: F21V5/007 , F21V5/045 , F21V5/08 , F21V33/0052 , G02B3/02 , 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.
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公开(公告)号：US11649945B2
公开(公告)日：2023-05-16
申请号：US17153646
申请日：2021-01-20
Applicant: NICHIA CORPORATION
Inventor： Norimasa Yoshida , Tsuyoshi Okahisa
CPC classification number: F21V5/007 , F21V5/045 , F21V5/08 , F21V33/0052 , G02B3/02 , H04N5/2256 , F21Y2105/10
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.
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