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    High intensity light source with high CRI
    2.
    发明授权
    High intensity light source with high CRI 有权

    公开(公告)号：US11841136B2

    公开(公告)日：2023-12-12

    申请号：US17636091

    申请日：2020-08-18

    Applicant: SIGNIFY HOLDING B.V.

    Inventor： Rifat Ata Mustafa Hikmet ,  Martinus Petrus Joseph Peeters ,  Ties Van Bommel ,  Olexandr Valentynovych Vdovin ,  Robert Van Asselt

    IPC: F21V9/38 ,  F21Y115/30 ,  F21Y113/13

    CPC classification number: F21V9/38 ,  F21Y2113/13 ,  F21Y2115/30

    Abstract: The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises a first light source (110), a first luminescent material (210), a second source (120) of second light (121), and a third light source (130), wherein: the first light source (110) is configured to generate blue first light source light (111) having a first peak wavelength λ1 selected from the spectral wavelength range of 440-475 nm, wherein the first light source (110) is a first laser light source (10); the first luminescent material (210) is configured to convert at least part of the first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the
    first luminescent material (210) comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, and In, wherein A comprises at least Y, and wherein B comprises at least Al; the second source (120) of second light (121) is configured to provide the second light (121) having an emission band having a dominant wavelength or peak wavelength in the spectral wavelength range of 580-610 nm; the third light source (130) is configured to generate red third light source light (131) having a third peak wavelength λ3 selected from the spectral wavelength range of 630-670 nm, wherein the third light source (130) is a third laser light source (30); the light generating device (1000) is configured to provide in a first operational mode white device light (1001) comprising the first light source light (111), the first luminescent material light (211), the second light (121), and the third light source light (131), with a correlated color temperature selected from the range of 2000-5000 K and a color rendering index (CRI) of at least 80.

    Lighting device comprising a light-transmissive enclosure
    3.
    发明授权
    Lighting device comprising a light-transmissive enclosure 有权

    公开(公告)号：US12013108B2

    公开(公告)日：2024-06-18

    申请号：US18024632

    申请日：2021-09-16

    Applicant: SIGNIFY HOLDING B.V.

    Inventor： Johannes Petrus Maria Ansems ,  Stephan Certain ,  Michel Cornelis Josephus Maria Vissenberg ,  Olexandr Valentynovych Vdovin ,  Joris Jan Vrehen

    IPC: F21V3/02 ,  F21V3/10 ,  F21W131/103

    CPC classification number: F21V3/02 ,  F21V3/10 ,  F21W2131/103

    Abstract: A lighting device (1) is provided. The lighting device (1) comprises a light-transmissive enclosure (10) and alight source (30). The light-transmissive enclosure (10) has an outer surface (11) and an inner surface (12) opposite to the outer surface (11). The inner surface (12) at least in part forming a cavity (20). The light-transmissive enclosure (10) has an opening (15) lying in a transverse plane (P1). The light source (30) is arranged on the transverse plane (P1), or on a side of the transverse plane (P1) opposite of the light-transmissive enclosure (10), and configured to emit light into the cavity (20). The light-transmissive enclosure (10) is arranged around a longitudinal axis (L), the longitudinal axis (L) lying in a longitudinal plane that is perpendicular to the transverse plane (P1). The light-transmissive enclosure (10) has a first part (101) and a second part (102) separated from each other by the longitudinal plane (P2). The first part (101) is shaped as a first parabolic segment or a first elliptical segment having a first focal point (13) that is located on the transverse plane (P1). The second part (102) is shaped as a second parabolic segment or a second elliptical segment having a second focal point (14) that is located on the transverse plane (P1). The light source (30) is arranged between the first focal point (13) and the second focal point (14).

    Light guide and a lighting device comprising a light guide
    4.
    发明授权
    Light guide and a lighting device comprising a light guide 有权

    公开(公告)号：US11966070B2

    公开(公告)日：2024-04-23

    申请号：US17608186

    申请日：2020-05-04

    Applicant: SIGNIFY HOLDING B.V.

    Inventor： Barry Mos ,  Michel Cornelis Josephus Marie Vissenberg ,  Olexandr Valentynovych Vdovin ,  Johannes Petrus Maria Ansems ,  Hugo Johan Cornelissen

    IPC: F21V8/00

    CPC classification number: G02B6/0036

    Abstract: A light guide (1) for a lighting device (8) is provided. The light guide (1) comprises an incoupling element (2) configured for receiving light and coupling the received light into the light guide (1). The light guide (1) is configured to convey the received light within the light guide (1). The light guide (1) comprises at least a first group and a second group of conically shaped outcoupling surface structures (3) distributed on, and recessed into or protruding from, a side (4) of the light guide (1). Each conically shaped outcoupling surface structure (3) is configured for coupling of light out of the light guide (1). Further, each conically shaped outcoupling surface structure (3) of the first group is geometrically characterized by a shape in accordance with a first cone or conical frustum (5) and each conically shaped outcoupling surface structure (3) of the second group is geometrically characterized by a shape in accordance with a second cone or conical frustum (6). The first cone or conical frustum (5) has (i) a height (1) different from a height (h2) of the second cone or conical frustum (6), and (ii) a base diameter (bd1) different from a base diameter (bd2) of the second cone or conical frustum (6). The first cone or conical frustum (5) has a height (h1) to base diameter (bd1) ratio in a range of 0.4 to 0.7. The second cone or conical frustum (6) has a height (h2) to base diameter (bd2) ratio in a range of 0.7 to 1.4.

    Lighting system
    5.
    发明授权
    Lighting system 有权

    公开(公告)号：US12222097B2

    公开(公告)日：2025-02-11

    申请号：US18691230

    申请日：2022-09-12

    Applicant: SIGNIFY HOLDING B.V.

    Inventor： Ludovicus Johannes Lambertus Haenen ,  Olexandr Valentynovych Vdovin ,  Hugo Johan Cornelissen ,  Martinus Petrus Joseph Peeters

    IPC: F21V5/00 ,  F21Y105/12 ,  F21Y115/10 ,  F21Y115/30

    Abstract: The invention provides a lighting system (1000), wherein the lighting system (1000) comprises np system sections (100), wherein nF≥2, wherein each system section (100) comprises a light source array section (110), a collimator section (120), and a Koehler integrator section (130), wherein: for each of the system sections (100) applies: the light source array section (110) comprises a plurality of section light sources (10) configured to provide light source light (11); the Koehler integrator section (120) comprises a section entrance face (131) and a section exit face (136), wherein the section entrance face comprises a plurality of section entrance lenslets (132) shaped according to an section entrance surface pattern (31), and wherein the section exit face (136) comprises a plurality of section exit lenslets (137) shaped according to a section exit surface pattern (36), and wherein the section entrance face (131) is configured in a light receiving relationship with the plurality of section light sources (10) via the collimator section (120); each of the plurality of section light sources (10) have a light emitting surface (15), wherein the light emitting surface (15) has a first axis of elongation A1 and an aspect ratio RS, wherein RS>1; each first axis of elongation A1 has an angle αA1 to an averaged first direction of the axes of elongation A1, wherein α1≤5°; the section entrance surface pattern (31) comprises a section entrance tessellation (33) of an entrance lenslet shape, wherein the entrance lenslet shape has a rotational symmetry of order nA, wherein nA≥2, wherein the entrance lenslet shape has an entrance aspect ratio R1 and wherein R1≤RS; the section exit surface pattern (36) comprises a section exit tessellation (37) of an exit lenslet shape, wherein the exit lenslet shape approximates the light emitting surface (15), wherein the exit lenslet shape has an exit aspect ratio R2, wherein R2 is selected from the range of 0.8*RS−1.2*RS; and at least two system sections (100) of the system sections (100) are rotated relative to another for 360°/nA/k+(360/nA)*nI, wherein m is anon-negative integer, and wherein k is selected from the range of 2-12.

    High intensity light source with high CRI and R9
    9.
    发明授权
    High intensity light source with high CRI and R9 有权

    公开(公告)号：US11767966B2

    公开(公告)日：2023-09-26

    申请号：US17770566

    申请日：2020-10-20

    Applicant: SIGNIFY HOLDING B.V.

    Inventor： Hugo Johan Cornelissen ,  Rifat Ata Mustafa Hikmet ,  Olexandr Valentynovych Vdovin ,  Rene Theodorus Wegh ,  Ties Van Bommel ,  Christoph Gerard August Hoelen ,  Robert Van Asselt

    IPC: F21V9/30 ,  F21V7/06 ,  F21Y115/30 ,  F21Y113/13

    CPC classification number: F21V9/30 ,  F21V7/06 ,  F21Y2113/13 ,  F21Y2115/30

    Abstract: The invention provides a light generating device (1000) configured to generate device light (1001), wherein the light generating device (1000) comprises a first light source (110), a first luminescent material (210), a second light source (120) of second light source light (121), and a second light source (130), wherein: the first light source (110) is configured to generate blue first light source light (111) having a first peak wavelength λ1 selected from the spectral wavelength range of 437-472 nm, wherein the first light source (110) is a first laser light source (10); the first luminescent material (210) is configured to convert at least part of the first light source light (111) into first luminescent material light (211) having an emission band having wavelengths in one or more of (a) the green spectral wavelength range and (b) the yellow spectral wavelength range, wherein the first luminescent material (210) comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, La, Gd, Tb and Lu, especially (at least) one or more of Y, Gd, Tb and Lu, and wherein B comprises one or more of Al, Ga, In and Sc; the second light source (120) of second light source light (121) is configured to provide the second light source light (121) having an emission band having a dominant wavelength or peak wavelength in the spectral wavelength range of 580-610 nm; the second light source (130) is configured to generate red second light source light (131) having a second peak wavelength λ3 selected from the spectral wavelength range of 630-670 nm, wherein the second light source (130) is a second laser light source (30); the light generating device (1000) is configured to provide in a first operational mode white device light (1001) comprising the first light source light (111), the first luminescent material light (211), the second light source light (121), and the second light source light (131), with a correlated color temperature selected from the range of 2000-3150 K and a color rendering index (CRI) of at least 80.

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