HLD MODULE WITH CAVITY FOR IMPROVED LIGHT COUPLING

    公开(公告)号:US20220342136A1

    公开(公告)日:2022-10-27

    申请号:US17620764

    申请日:2020-06-17

    Abstract: The invention provides a light generating system (1000), comprising a plurality of light sources (10), an elongated luminescent body (100), and a body holder structure (2000), wherein: —the plurality of light sources (10) are configured to provide light source light (11), wherein the light sources (10) are solid state light sources, wherein the plurality of light sources (10) are configured in a light source array (15); —the elongated luminescent body (100) has a length (L) and a width (W), wherein the elongated luminescent body (100) comprises luminescent material (120) configured to convert at least part of light source light (11) into luminescent material light (8), wherein the elongated luminescent body (100) and the light source array (15) are configured parallel; —the body holder structure (2000) comprises an elongated slit (205) for hosting the elongated luminescent body (100), wherein the elongated slit (205) has a cavity wall (1205) defining the elongated slit (205) and a slit opening (1206), wherein the slit opening (1206) has a slit opening width (WS1), wherein the cavity wall (1205) and the elongated luminescent body (100) have first shortest distances (d11) that vary over the cavity wall (1205), wherein at least part of the cavity wall (1205) is reflective for light source light (11); —the light sources (10) are configured at second shortest distances (d21) from the elongated luminescent body (100), wherein the second shortest distance (d21) is selected from the range of 40-1000 μm, and wherein one or more of the plurality of light sources (10) are configured to irradiate with the light source light (11) the elongated luminescent body (100) both (i) directly and (ii) indirectly via the cavity wall (1205).

    LUMINAIRE COMPRISING A SURFACE TILE AND A LIGHTING DEVICE

    公开(公告)号:US20200348460A1

    公开(公告)日:2020-11-05

    申请号:US16957351

    申请日:2018-12-18

    Inventor: BARRY MOS

    Abstract: A luminaire (1) is disclosed that comprises a surface tile (5) and a lighting device (10), wherein the lighting device (10) is arranged proximal to an edge of the surface tile (5). The lighting device (10) comprises a light guide (100) having an elongate surface arrangement (110) extending between opposing end surfaces (120, 120′), and a light source (20) at one of the end surfaces (120, 120′) of the light guide (100) and arranged to emit its luminous output into the light guide (100) through said end surface (120, 120′). The elongate surface arrangement comprises a first surface portion (111) and an opposing second surface portion (113). The first surface portion (111) comprises a first light outcoupling structure (130) dimensioned to generate a first illumination profile (135) from the second surface portion (113) that has a first angular distribution, and a second light outcoupling structure (130′) spatially separated from the first outcoupling structure (130) and dimensioned to generate a second illumination profile (135′) from the second surface portion (113) that is spatially distinct to the first illumination profile (135) and has a second angular distribution. The first illumination profile (135) and the second illumination profile (135′) illuminate different regions of the surface tile (5) and in combination provide a uniform illumination of the surface tile (5).

    Lighting arrangement with light guide element

    公开(公告)号:US20240210613A1

    公开(公告)日:2024-06-27

    申请号:US18564383

    申请日:2022-05-17

    CPC classification number: G02B6/0091 G02B6/0088

    Abstract: A lighting arrangement (100), comprising: LEDs (110), a PCB (120) arranged to support the LEDs, a light guide element (130) configured to guide light emitted from the LEDs, wherein the light guide element is plate-shaped and arranged in a plane, P, and wherein the LEDs are arranged at an edge (140) of the light guide element, a support structure (150) fastened to the PCB and arranged at at least a first edge portion (155) of the light guide element, wherein the support structure comprises a groove (190), wherein the lighting arrangement further comprises a cover plate (200) comprising flanges (210) matingly and biasedly arranged in the groove, whereby the support structure, via first (160) and second portions (170) thereof, clamp the at least a first edge portion of the light guide element for positioning of the LEDs at the edge of the light guide element.

    A LIGHT GUIDE AND A LIGHTING DEVICE COMPRISING A LIGHT GUIDE

    公开(公告)号:US20220214490A1

    公开(公告)日:2022-07-07

    申请号:US17608186

    申请日:2020-05-04

    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 WITH CONSTANT ILLUMINANCE DIMMING

    公开(公告)号:US20220110194A1

    公开(公告)日:2022-04-07

    申请号:US17426330

    申请日:2020-02-10

    Abstract: The invention provides a lighting system (100) comprising a first light source (10), a second light source (20), and a control system (30), wherein: —the first light source (10) is configured to generate first light source light (11) with a controllable first radiant flux, wherein the first radiant flux is dimmable over a first dimming range; wherein the first light source light (11) has a first angular distribution relative to the lighting system (100); —the second light source (20) is configured to generate second light source light (21) with a controllable second radiant flux, wherein the second radiant flux is dimmable over a second dimming range; wherein the second light source light (21) has a second angular distribution relative to the lighting system (100), different from the first angular distribution; —the control system (30) is configured to control the first light source (10) and the second light source (20), wherein, in a controlling mode of the control system (30), the control system (30) is configured to control a value of one of the first radiant flux and the second radiant flux with a negative proportional dependence of a change in a value of the other of the first radiant flux and the second radiant flux over at least a respective part of the respective dimming range.

    ASSEMBLY FOR A SEMICONDUCTOR PHOTONIC COMPONENT

    公开(公告)号:US20230275162A1

    公开(公告)日:2023-08-31

    申请号:US18018133

    申请日:2021-07-15

    CPC classification number: H01L31/0203 H01L25/167 H01L33/483

    Abstract: The invention relates to an assembly (10) for a semiconductor photonic component (31, 32), wherein the semiconductor photonic component (31, 32) is accommodated in an assembly housing (11) being shielded from the environment. Furthermore, the invention relates to an assembly housing (11) for use with such assembly for a semiconductor photonic component (31, 32). Accordingly, the assembly (10) at least comprising a substrate (30); at least one semiconductor photonic component (31, 32) mounted to the substrate (30), said at least one semiconductor photonic component (31, 32) including a photonic active surface element (31A, 32A); an assembly housing (11) for shielding the substrate (30) and the at least one semiconductor photonic component (31, 32) from the environment; the assembly housing (11) comprises a housing wall part (20, 20) provided with at least one photonic window element (21) facing the photonic active surface element (31A, 32A) of the at least one semiconductor photonic component (31), said at least one photonic window element (21) forming a monolithic part with the housing wall part (20, 20′) and having a transmissivity being larger than the transmissivity of the housing wall part (20, 20′).

    LUMINAIRE AND LIGHTING SYSTEM
    9.
    发明公开

    公开(公告)号:US20230236354A1

    公开(公告)日:2023-07-27

    申请号:US17923596

    申请日:2021-05-06

    CPC classification number: G02B6/0076 G02B6/0036 G02B6/0068 G02B6/0073

    Abstract: The invention relates to a luminaire comprising a stack of parallel light transmissive transparent plates comprising a light guide plate and an optical plate. The light guide plate comprises a first and a second major light guide surface and a circumferential edge-wall and is edge-lit by LEDs. At least one of the major light guide surfaces is provided with a light outcoupling structure comprising outcoupling elements arranged at a first pitch P1. The optical plate comprises a first and a second major optical surface, the first major optical surface facing towards the second major light guide surface and only one of the first and second major optical surfaces being provided with an optical structure comprising optical elements arranged at a second pitch P2. The second major light guide surface and the first major optical surface are spaced apart in a direction perpendicular to the major light guide surface by a spacing S, with S being in the range of 0-12 mm. P1 and P2 are in the range of 1-7 mm and a ratio between P1 and P2 is in the range of 0.5-2.

    A LIGHT EMITTING DEVICE
    10.
    发明申请

    公开(公告)号:US20220214489A1

    公开(公告)日:2022-07-07

    申请号:US17605223

    申请日:2020-04-22

    Abstract: A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting light, the at least one light source (2) comprising a light emitting surface (21), and a light guide (3) comprising a top surface (31), a bottom surface (32) and a light incoupling edge (33) extending between the top surface (31) and the bottom surface (32), where a plane (4) is defined as extending in parallel with at least one of the top surface (31) and the bottom surface (32) of the light guide (3), where the at least one light source (2) and the light guide (3) is arranged in such a way with respect to each other that the light emitting surface (21) of the at least one light source (2) and the light incoupling edge (33) of the light guide (3) face each other, that the light incoupling edge (33) of the light guide (3) extends in a first angle (α) with respect to said plane (4), and that the light emitting surface (21) of the at least one light source (2) extends in a second angle (β) with respect to said plane (4), and that at least one of the first angle (α) and the second angle (β) is less than 90°, and where the light emitting device (1) further comprises a linear refractive and/or reflective optical element (6) arranged and adapted for shaping the fraction of the light emitted by the light source (2) which is not coupled into the light guide (3) and/or which leaks out of the top surface (31) of the light guide (3) into a focused light beam propagating above the top surface (31) of the light guide (3) in an acute angle with said plane (4).

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