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公开(公告)号：US20240356652A1
公开(公告)日：2024-10-24
申请号：US18683572
申请日：2022-08-12
Applicant: SIGNIFY HOLDING B.V.
Inventor： CHRISTOPH GERARD AUGUST HOELEN
IPC: H04B10/516 , H04B10/50
CPC classification number: H04B10/516 , H04B10/502 , H04B10/504
Abstract: This invention relates to a transmitter and transmission system for optical communication that comprises multiplexing of light sources with serial emission of data and protocol negotiation signals to enable binary pulse modulation with miniaturized components. Mounting two different light sources (e.g., VCSELs) antiparallel enables multiplexing functionality while requiring only a two-electrodes package without further inclusion of Zener diodes, resulting in miniaturization and cost reduction.
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公开(公告)号：US20220066109A1
公开(公告)日：2022-03-03
申请号：US17299094
申请日：2019-11-25
Applicant: SIGNIFY HOLDING B.V.
Inventor： SIMON EME KADIJK , DIRK KORNELIS GERHARDUS DE BOER , LUDOVICUS JOHANNES LAMBERTUS HAENEN , ABRAHAM VAMATTATHIL SCARIA , JOHANNES MARTINUS JANSEN , JIANG HONG YU , DANIEL ANTON BENOY , CHRISTOPH GERARD AUGUST HOELEN
Abstract: The invention provides an elongated luminescent body (100) comprising an elongated support (170) and a coating layer (180), wherein the elongated luminescent body (100) further comprises a body axis (BA), and a length parameter P of a body dimension perpendicular to the body axis (BA), wherein the length parameter P is selected from height (H), width (W) and diameter (D), wherein:—the elongated support (170) comprises a support material (171), a support material index of refraction n1, wherein the support material index of refraction n1 is at least 1.4, a support surface (172), and a support length (L1);—the coating layer (180) is configured on at least part of the support surface (172) over at least part of the support length (L1), wherein the coating layer (180) comprises a coating layer material (181), a coating layer index of refraction n2, wherein coating layer index of refraction n2 is at least 1.4, and a coating layer thickness (d1), wherein the coating layer material (181) has a composition different from the support material (171), wherein the coating layer material (181) comprises a luminescent material (120) configured to absorb one or more of UV radiation and visible light, and to convert into luminescent material light (8) having one or more wavelengths in one or more of the visible and the infrared; and—the support material (171) is transmissive for the luminescent material light (8), and (i) −0.2≤n1−n2≤0.2 and (ii) d1/P≤0.25 apply.
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公开(公告)号：US20200218001A1
公开(公告)日：2020-07-09
申请号：US16628388
申请日：2018-07-05
Applicant: SIGNIFY HOLDING B.V.
Inventor： CHRISTOPH GERARD AUGUST HOELEN , SIMON EME KADIJK , LUDOVICUS JOHANNES LAMBERTUS HAENEN , YUN LI
Abstract: The invention provides a lighting device (1) comprising a light source configured to provide light source light and a luminescent element (5) comprising an elongated light transmissive body (100), the elongated light transmissive body (100) comprising a side face (140), wherein the elongated light transmissive body (100) comprises a luminescent material (120) configured to convert at least part of the light source light (11) selected from one or more of the UV, visible light, and IR received by the elongated light transmissive body (100) into luminescent material radiation (8). The side face comprises the radiation input face (111), and the body further comprises a first face (141) and a second face (142) defining a length of the body, wherein the second face comprises a first radiation exit window (112). The side face comprises a curvature with a radius r, and the concentration of the luminescent material is chosen such that at least 80% of the source light is absorbed within a first length x from the side face, wherein x/r
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公开(公告)号：US20220342136A1
公开(公告)日：2022-10-27
申请号：US17620764
申请日：2020-06-17
Applicant: SIGNIFY HOLDING B.V.
Inventor： PETRUS HENDRIKUS ANTONIS , LUDOVICUS JOHANNES LAMBERTUS HAENEN , PETER VANPOUCKE , BARRY MOS , CHRISTOPH GERARD AUGUST HOELEN , DOMINIQUE MARIA BRULS , SIMON EME KADIJK , LI YUN
IPC: F21V8/00
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).
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公开(公告)号：US20220290840A1
公开(公告)日：2022-09-15
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
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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Patent Agency Ranking
公开(公告)号：US20220074553A1
公开(公告)日：2022-03-10
申请号：US17431620
申请日：2020-02-18
Applicant: SIGNIFY HOLDING B.V.
Inventor： CHRISTOPH GERARD AUGUST HOELEN , TIES VAN BOMMEL , RIFAT ATA MUSTAFA HIKMET , JOHANNES PETRUS MARIA ANSEMS , ROBERT JACOB PET
Abstract: The invention provides a lighting device (10) comprising (i) a plurality of elongated filaments (100) and (ii) an optical element (200), wherein: —each elongated filament (100) comprises a support (105) and a plurality of solid state light sources (110), wherein the elongated filament (100) has a first axis of elongation (120) having a first length (L1), wherein the elongated filament (100) is configured to generate filament light (101) over at least part of the first length (L1); and —the optical element (200) comprises a plurality of facets (210), wherein the optical element (200) has a second axis of elongation (220) having a second length (L2), wherein the optical element (200) has a non-circular cross-section perpendicular to the second axis of elongation (220), wherein the optical element (200) is configured between at least two of the plurality of elongated filaments (100), and wherein the optical element (200) is configured to redirect at least part of the filament light (101).
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公开(公告)号：US20240267132A1
公开(公告)日：2024-08-08
申请号：US18567949
申请日：2022-06-03
Applicant: SIGNIFY HOLDING B.V.
CPC classification number: H04B10/806 , H04B10/40
Abstract: An optical front end, OFE, module (200) for use in an optical wirelesscommunication, OWC, system (100), the OFE module (200) comprising: an optical transmitter (210) comprising a light source (211) for transmitting optical signals; an optical receiver (220) comprising a light sensor (221) for receiving optical signals;a control circuit (230) configured to: connect to a USB On-The-Go, OTG, interface (231) comprising a differential data path (232) and an ID signal (233); route signals received on the differential data path (232) to an input of the optical transmitter (210) and signals received on an output of the optical receiver (220) to the differential Q data path (232); control a power-up sequence of the OFE module (200), which defines that the OFE module (200) is initialized by powering up the optical receiver (220) first for detecting an optical test signal within an ID detection period; set the ID signal (233) to GND and latch the ID signal (233) when the optical test signal is received within the ID detection period; set the ID signal (233) to Float and latch the ID signal (233) when no optical test signal is received within the ID detection period.
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公开(公告)号：US20240187109A1
公开(公告)日：2024-06-06
申请号：US18284944
申请日：2022-04-05
Applicant: SIGNIFY HOLDING B.V.
IPC: H04B10/69 , G02B3/08 , G02B13/14 , H04B10/116
CPC classification number: H04B10/691 , G02B3/08 , G02B13/14 , H04B10/116
Abstract: This invention relates to an optical detector (100) that has enhanced sensitivity for detecting optical signals originating from larger incidence angles. The optical detector (100) may also be used for determining optical signals originating direction. The optical detector (100) comprises a photodetector (101) and a lens (103). The photodetector (101) has a center axis (102) that is lying in a center plane (001) perpendicular to a photodetector plane (002). The lens has a first lens segment (131) and a second lens segment (132) separated by the centerplane (001). The first lens segment (131) comprises a first light receiving surface (133) and a first light exit surface (135), and the first light exit surface (135) is facing the photodetector (101). The second lens segment (132) comprises a second light receiving surface (134) and a second light exit surface (136), and the second light exit surface (134) is facing the photodetector (101). The first light receiving surface (133) comprises a first convex surface with non-constant curvature, the first convex surface having a first minimum radius of curvature (051) at a first surface point. The second light receiving surface (134) comprises a second convex surface with non-constant curvature, the second convex surface having a second minimum radius of curvature (052) at a second surface point. The first angle (053) enclosed by the center axis (102) and a first line (055) is greater than zero degrees, where the first line (055) is normal to the first convex surface at the first surface point and extending up to the center axis (102). And a second angle (054) enclosed by the center axis (102) and a second line (056) is greater than zero degrees, where the second line (056) is normal to the second convex surface at the second surface point and extending up to the center axis (102).
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公开(公告)号：US20240137120A1
公开(公告)日：2024-04-25
申请号：US18286784
申请日：2022-04-11
Applicant: SIGNIFY HOLDING B.V.
Inventor： HUGO JOHAN CORNELISSEN , CHRISTOPH GERARD AUGUST HOELEN , JOHAN PAUL MARIE GERARD LINNARTZ
Abstract: The invention concerns an optical detector (100) with a low-cost and efficient solution for the imaging lens in the receiver that is configured to better receive optical signals originating from wide viewing angles. The optical detector (100) comprises a ball lens (101), a photodetector (120), and a plurality of lightguides (103). The ball lens (101) comprising a first spherical surface (010) for receiving incoming light and a second spherical surface (020) for exiting incoming light. Each of the plurality of lightguides (103) has a light entry surface (104) and a light exit surface (105). The plurality of light entry surfaces (104) are facing the second spherical surface (020) of the ball lens (101) and the plurality of light exit surfaces (105) are facing the photodetector (120). The photodetector (120) and the plurality of lightguides (103) are arranged around an optical axis (001) of the ball lens (101).
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公开(公告)号：US20230090913A1
公开(公告)日：2023-03-23
申请号：US17802882
申请日：2021-02-22
Applicant: SIGNIFY HOLDING B.V.
Inventor： CHRISTOPH GERARD AUGUST HOELEN , DIRK KORNELIS GERHARDUS DE BOER , LUDOVICUS JOHANNES LAMBERTUS HAENEN , JOHANNES MARTINUS JANSEN
Abstract: A light generating system (1000) comprising a plurality of light sources (10) configured to provide light source light (11), an elongated luminescent body (100) having a first face (141) and a second face (142) defining a length (L) of the elongated luminescent body (100), the elongated luminescent body comprising one or more side faces (140), the elongated luminescent body (100) comprising a radiation input face (111) and the second face (142) comprising a first radiation exit window (112), wherein the radiation input face (111) is configured in a light receiving relationship with the plurality of light sources (10), wherein the elongated lumines-cent body (100) comprises luminescent material (120) configured to convert at least part of the light source light (11) into luminescent material light (8), and a beam shaping optical element (224).
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