Abstract: A LED filament lamp (1) providing, in operation, LED filament lamp light and comprising a LED filament (21-24) emitting, in operation, LED filament light and comprising LEDs (3-6) emitting, in operation, LED light and arranged on an elongated carrier (7-10), an elongated encapsulant (11-14) covering the plurality of LEDs (3-6) and at least part of the elongated carrier (7-10), the elongated encapsulant (11-14) comprising a first luminescent material (38) configured to convert at least a part of the LED light into converted light and/or a light scattering material (39) configured to scatter at least a part of the LED light into scattered light, a base (17) configured to, electrically and mechanically, connect the LED filament lamp (1) to a socket (51) of a luminaire (50), a translucent envelope (15) at least partly enclosing said LED filament (21-24) and mounted to the base (17), and the translucent envelope (15 ) comprising a second luminescent material (37) which comprises one or more of an organic phosphor

Abstract: The invention provides a light generating system (1000) comprising (a) a plurality of sets (150) of light generating devices (100) and (b) a luminescent material (200), wherein: the light generating devices (100) are configured in an array (40); the light generating devices (100) are configured to generate device light (101); wherein the light generating devices (100) comprise solid state light sources; the plurality of sets (150) of light generating devices (100) comprises at least three sets (50) of light generating devices (100), wherein the light generating devices (100) of different sets mutually differ in peak wavelengths (?p) of the device light (101), wherein at least one set (50) of light generating devices (100) is configured to generate device light (111) having a peak wavelength (?pb) in the blue wavelength range, wherein at least two different sets (50) of light generating devices (100) are configured to generate device light (101) comprising UV radiation with at least two different peak waveleng

Abstract: A LED filament arrangement (100), comprising a first LED filament(s) (110), comprising (a) first array(s) (125) of first LEDs (130) emitting first LED light (13 5). The first LED filament(s) further comprises (a) first encapsulant(s) (140) enclosing the first array(s) of first LEDs. The first encapsulant(s) comprises a first luminescent material (145) configured to convert the emitted first LED light into first converted light (150). The LED filament arrangement further comprises a second LED filament(s) (155), comprising (a) second array(s) (170) of second LEDs (175) emitting second LED light (180), wherein the emitted second LED light is cyan light. Any of the first LED filament(s) is arranged at at least a distance, D, from any of the second LED filament(s). The LED filament arrangement further comprises a controller (185) coupled to, and configured to individually control, the first array(s) 0f the first LEDs and the second array(s) of second LEDs.

Abstract: A light emitting diode, LED, filament arrangement (1) comprising at least one first filament (3) configured to, in operation, emit first light having a first correlated color temperature, CCT1, at least one second filament (4) configured to, in operation, emit second light having a second correlated color temperature, CCT2, where CCT2>CCT1, and at least one third filament (5) configured to, in operation, emit third light having a third color temperature, CCT3, where CCT3>CCT2, where each of the at least one first, second and third filament (3; 4; 5) comprises a carrier (31; 41; 51) of elongated shape, where a plurality of light emitting diodes (32; 42; 52) is arranged on the carrier (31; 41; 51), and a control unit (6) configured to control a first luminous flux, L1, of the first light, a second luminous flux, L2, of the second light and a third luminous flux, L3, of the third light according to at least one predetermined setting in order to control the total correlated color temperature, CCTtot, of the

Abstract: A lighting control method includes receiving sweat data from a sensor that is in proximity of a person in an area. The sensor is configured to sense sweat produced by the person. The method further includes processing the sweat data to determine one or more parameters related to one or more sweat components of the sweat and adjusting a spectral distribution of an illumination light at least based on the one or more parameters, where the illumination light is provided by one or more lighting devices that are in the area.

Abstract: A LED filament lamp (1) adapted for, in operation, emitting LED filament lamp light, the LED filament lamp (1) comprising at least two rigid electrically conducting wires (2, 3), one or more LED filaments (41-43), a controller (6), a radio (25) and at least one antenna (5), where the one or more LED filaments (41-43) are mechanically and electrically connected to the at least two rigid electrically conducting wires (2, 3) and the rigid electrically conducting wires (2, 3) are electrically connected to the controller (6), where the at least one antenna (5) is mechanically connected to but electrically isolated from the at least two rigid electrically conducting wires (2, 3), where the controller (6) is functionally coupled to the radio (25), where the at least one antenna (5) is electrically coupled to the controller (6), and where the antenna (5) is spaced apart from each of the one or more LED filaments (41-43) by a distance D.

Abstract: The invention provides a light generating system (1000) comprising a first light generating device (110), a second light generating device (120), a third light generating device (130), a luminescent material (200), and a control system (300), wherein: —the first light generating device (110) is configured to generate first device light (111) having a first dominant wavelength (?1) selected from the wavelength range of 380-430 nm; the second light generating device (120) is configured to generate second device light (121) having a second dominant wavelength (?2) selected from the wavelength range of 430-470 mn; the third light generating device (130) is configured to generate third device light (131) having a third dominant wavelength (?3) selected from the wavelength range of 470-520 nm; wherein ?1<?2<?3; —the luminescent material (200) is configured to convert (a) at least part of the first device light (111) received by the luminescent material (200) into luminescent material light (201), (b) at least

Abstract: The present invention relates to an LED filament (10) comprising: an at least partially light-transmissive elongated carrier (14); first LEDs (20) configured to emit first LED light (22) and distributed along the carrier on a first surface thereof; a first elongated translucent layer (26) comprising a first luminescent material arranged to at least partly convert said first LED light into first converted light (28); an elongated reflective layer (30) arranged to at least partially cover said first elongated translucent layer, such that at least part of said first converted light is transmitted through said at least partially light-transmissive elongated carrier; and second LEDs (32a-c) configured to emit second LED light (34) and distributed along the carrier on a second surface thereof, wherein the second LEDs comprise blue LEDs (32a), green LEDs (32b), and red LEDs (32c); wherein said second surface of the carrier is free from an encapsulant or comprises an encapsulant (38) being free from a luminescent mat

Abstract: The field of the present invention is a LED filament lamp (7) for illumination wherein at least one LED filament lamp (7) is configured to emit a polarized light. The LED filament lamp (7) comprises at least one LED filament (1) and an encapsulated volume (V) having an envelope (10) comprising a light exit window, inside of which the LED filament (1) is arranged. The LED filament (1) or LED filaments (11,12) comprises a plurality of LEDs (3) arranged on a filament carrier (2). At least one polarizer (5) is arranged relative to the LED filament (1). The polarizer (5) is configured to provide a polarization direction of light. The polarizer (5) encloses or partially encloses the at least one LED filament (1), such that the light or part of the light emitted from the LED filament lamp (7) may be polarized light or non-polarized.

Abstract: The invention provides a light generating system (1000) comprising a light generating device (100), a lightguide (400), and a light collimating reflector (200), wherein the light generating device (100) is configured to generate device light (101); wherein the light generating device (100) comprises a solid state light source; wherein the lightguide (400) comprises a first lightguide face (410), a second lightguide face (420), and a side face (430) bridging the first lightguide face (410) and the second lightguide face (420); wherein the lightguide (400) comprises light outcoupling elements (600) (comprised by one or more of lightguide faces (410,420) and/or arranged in the lightguide (400)); wherein the first lightguide face (410) comprises a surface area A1; the first lightguide face (410) comprises (a) an inner surface part (455), having an inner surface area A11, and (b) an outer surface part (465), surrounding the inner surface part (455), (the outer surface part (465)) having an outer surface area A12;

Abstract: The invention provides a light generating system (1000) comprising a first light generating arrangement (110), a second light generating arrangement (120), a luminescent element (210), a diffuser element (410), a beam direction control system (500), and a control system (300), wherein: (A) the first light generating arrangement (110) is configured to generate a first beam (B1) of first device light, wherein the first light generating arrangement (110) comprises a first solid state laser light source (10); (B) the second light generating arrangement (120) is configured to generate a second beam (B2) of second device light (121), wherein the second light generating arrangement (120) comprises a second solid state laser light source (20); (C) the luminescent element (210) comprises a luminescent material (200), wherein the luminescent material (200) is able to convert the first device light and/or the second device light (121) received by the luminescent material (200) into luminescent material light (201); (D)

Abstract: A light engine (100) comprises a first and a second laser arrangement (10, 11) emitting blue laser light. A first mirror arrangement (12) partly reflects the blue laser light (51) emitted by the second laser arrangement (11) into a first part of second blue laser light (53) and a phosphor element (13) receives the blue laser light (50) emitted by the first laser device (10) and receives the first part of second blue laser light (53), and converts at least part of the blue laser light (50) emitted by the first laser device (10) and the first part of second blue laser light (53) into (green-yellow and/or red) converted light (55). The (green-yellow and/or red) converted light (55) is collimated and combined with a second part of second blue laser light (52) emitted by the second laser arrangement (11) not reflected by the first mirror arrangement (12) to generate white engine light (58).

Abstract: There is provided a light emitting diode, LED, filament, configured to emit LED filament light. The LED filament comprises a carrier, and an array of a plurality of light emitting diodes, LEDs, arranged on the carrier. The LED filament comprises an encapsulant at least partially enclosing the array and at least partially enclosing the carrier. Each LED of the plurality of LEDs is arranged to emit LED light comprising at least one of violet light, blue light, cyan light, and red light. The encapsulant comprises a near-infrared, NIR, phosphor configured to convert at least part of the LED light emitted from the plurality of LEDs into NIR converted light having a NIR dominant peak wavelength, ?5, in a wavelength range of 700 to 1400 nm, wherein the LED filament light comprises the NIR converted light.

Abstract: The invention provides light generating system (1000) comprising (i) one or more light generating devices (100), (ii) a luminescence conversion arrangement (2000), and (iii) a diffuser arrangement (4000), wherein: the one or more light generating devices (100) are configured to generate device light (101); wherein the one or more light generating devices (100) comprises a solid state light source (10), wherein the solid state light source (10) comprises one or more of a laser diode and a superluminescent diode; wherein the light generating system (1000) is configured such that, in an operational mode of the light generating system (1000), (a) at least part of the device light (101) propagates to the luminescence conversion arrangement (2000), and (b) at least part of the device light (101) propagates to the diffuser arrangement (4000); wherein the at least part of the device light (101) propagating to the diffuser arrangement (4000) is polarized light comprising one of a first linear polarization and a second

Abstract: The invention relates to a laser-phosphor based light generation system (1) for electrical correlated color temperature tunability. The light generation system (1) comprises a wavelength conversion unit (6), a diffuser, a beam-combiner, at least one transmitting and/or reflecting unit and a beam-splitting-beam-combiner (5). A first and a second laser light source (31, 32) are provided, wherein each of the laser light sources (31, 32) emits a blue light beam (15,16) with polarization different from each other. The beam-splitting-beam-combiner (5) comprises a reflective polarizer and a specular semi-reflective layer.

Abstract: The invention provides a light generating system (1000) comprising a lighting arrangement (100) of a triangular light guide panel (130) and a light source arrangement (110), wherein: the triangular light guide panel (130) comprises a first triangular face (136) and a second triangular face (139), wherein the triangular light guide panel (130) further comprises a first side face (131), a second side face (132), and a third side face (133), 5 bridging a distance (d1) between the first triangular face (136) and the second triangular face (139), wherein the first side face has a first length (L1); the light source arrangement (110) comprises a plurality of light sources (10) configured in an array (115) aligned with the first side face (131), wherein the light sources (10) are configured to provide light source light (11) having a luminous flux, wherein the light sources (10) comprise solid state light sources; 10 the triangular light guide panel (130) comprises light outcoupling elements (120), wherein the light

Abstract: A streetlighting system (100) comprising a plurality of streetlights for establishing line-of-sight communication links between any two adjacent streetlights.

Abstract: The invention provides a light generating system (1000) comprising a solid state light source (100), a luminescent material element (210), a sensor element (400), and an electrical circuit (500), wherein: (a) the solid state light source (100) is configured to generate light source light (101), wherein the solid state light source (100) is functionally coupled to the electrical circuit (500); (b) the luminescent material element (210) comprises a luminescent material (200), wherein the luminescent material element (210) is configured in a light receiving relationship with the solid state light source (100), and wherein the luminescent material (200) is configured to convert at least part of the light source light (101) into luminescent material light (201); and (c) the sensor element (400) comprises a sensor component (410), wherein the sensor element (400) is comprised by the electrical circuit (500), wherein the sensor component (410) comprises a photo-resistor, wherein the photo-resistor has a variable res

Abstract: A track lighting system, comprising a power supply connectable to an Alternating Current, AC, mains voltage, said power supply being arranged for converting said AC mains voltage into a safety voltage being lower than said AC mains voltage; a lighting track electrically connectable to said power supply and arranged for receiving lighting fixtures and for distributing said safety voltage to received lighting fixtures; a lighting fixture, comprising an adapter for mechanically and electrically connecting said lighting fixture to said lighting track; a lamp socket arranged for receiving an AC mains powered lamp; an upconverter arranged for upconverting said safety voltage, received from said lighting track, into an upconverted voltage being higher than said safety voltage, for providing said upconverted voltage to electrical contacts in said lamp socket.

Abstract: A photoreactor assembly (1000) is disclosed comprising a light generating system (700) and a photoreactor (200). The light generating system comprises a first light generating device (10) configured to generate first device light (11) comprising one or more of ultraviolet light, visible light, and infrared light. The photoreactor comprises a reactor chamber (210) configured to host a fluid (5) to be treated with the first device light (11). The first light generating device (10) is controllable at least with respect to the wavelength of the first device light (11), and is configured to generate the first device light (11) such that it changes between at least two centroid wavelengths (?1c, 1, ?1c,2) having a wavelength difference of at least 10 nm.