Abstract: A light emitting diode, LED, filament (1) configured to, in operation, emit LED filament light (22), the LED filament (1) comprising an array of light emitting diodes (2), LEDs, comprising a plurality of LEDs (20) configured to, in operation, emit LED light (23), an electrical circuitry (19) coupled to the plurality of LEDs (20), a elongated carrier (3), the plurality of LEDs (20) being arranged on a first major surface (31) of the elongated carrier (3), an encapsulant (5) comprising a translucent material, the encapsulant (5) at least partially enclosing the plurality of LEDs (20) and the elongated carrier (3), and an at least partially reflective layer (4) being configured to being perceived by a viewer as being golden in color, being configured to one or more of at least partially transmit and at least partially reflect the LED light (23), and being at least arranged on the same side of the elongated carrier (3) as the plurality of LEDs (20).

Abstract: The present invention relates to an optical component (100) for beam shaping comprising a conical reflector (101) having an inner surface being diffusely reflective, a transparent refractive hollow dome-shaped member (102), wherein said transparent refractive hollow dome-shaped member (102) has a proximal end (103) arranged in contact with said conical reflector (101), and a top (104) arranged at a distance from said conical reflector (101), wherein said top (104) has an opening (105) and that said transparent refractive hollow dome-shaped member (102) is manufactured by means of fused deposition modeling (FDM) using a transparent thermoplastic polymer material as printing material. The present invention also relates to a luminaire (10) and a method (200) for manufacturing such an optical component (100).

Abstract: A light-emitting diode, LED, tubular lighting device (1) is disclosed, comprising an elongated hollow tubular member (2) and a plurality of LEDs. The plurality of LEDs comprise at least a plurality of first LEDs (10), wherein each of the first LEDs (10) is configured to emit violet light, and a plurality of second LEDs (11, 12, 13), wherein each of the second LEDs (11, 12, 13) is configured to emit ultraviolet light. The LED tubular lighting device (1) comprises an elongated carrier (8) arranged within the elongated hollow tubular member (2). The plurality of LEDs are arranged in at least one succession on the elongated carrier (8), wherein the plurality of LEDs are arranged in the at least one succession such that the distance between consecutive LEDs in the at least one succession varies over the at least one succession while the distance between consecutive first LEDs (10) in the at least one succession is constant over the at least one succession.

Abstract: A lighting arrangement including a light emitting diode (LED) light source, a reflector, and a rod-shaped light guide element arrangement between the LED light source and the reflector. The side surface of the light guide element includes a prismatic structure with a cross section perpendicular to the longitudinal axis of the light guide element defining a circumferential saw-tooth profile with at least ten vertices extending in a radial direction of the light guide element.

Abstract: The invention provides a light generating system (1000) comprising a first light generating arrangement (2100), a luminescent body (210), a reflective polarizer (500), and a control system (300); wherein the first light generating arrangement (2100) is configured to generate pump light (2101) having a controllable polarization, wherein the polarization is controllable between a first polarization and a second polarization; wherein the first light generating arrangement (2100) comprises a first solid state light source (10) selected from the group comprising a superluminescent diode and a laser diode; wherein the luminescent body (210) comprises a luminescent material (200); wherein the luminescent body (210) is configured to (a) transmit at least part of the pump light (2101) (comprising the first polarization and/or the second polarization) and (b) convert at least part of the pump light (2101) (comprising the first polarization and/or the second polarization) into luminescent material light (201); wherein t

Abstract: The invention provides a track lighting system comprising an elongated system track, a first connector element, and a LED luminaire configured to be connected to said elongated system track; wherein the elongated system track extends along an axis of elongation; wherein the first connector element is configured to mechanically and electrically connect said LED luminaire with said elongated system track, wherein the first connector element comprises a first luminaire connector and a first track connector; wherein the LED luminaire comprises a back panel facing the elongated system track when the LED luminaire is connected to said elongated system track, and a first luminaire track arranged in or on the back panel of the LED luminaire; wherein the first luminaire connector is mechanically and electrically connected to the first luminaire track and is movable along the first luminaire track; wherein the first track connector is mechanically and electrically connected to the elongated system track and is movable

Abstract: A LED luminaire module is provided, including a track connector, a plurality of LED light sources, and a light exit window. The track connector electrically and mechanically couples the LED luminaire module to a track and is arranged at a center region of the LED luminaire module. The plurality of LED light sources generates LED light. The light exit window exits the LED light generated by the plurality of LEDs from the LED luminaire module as module light. The light exit window is and may be S-shaped, reverse-S-shaped, Z-shaped, or reverse-Z-shaped. The LED luminaire may further include a module connector arranged at an end of the LED luminaire module and mechanically and/or electrically couples the LED luminaire module to a second LED module or a bridge LED luminaire module.

Abstract: The invention provides a light generating system (1000) comprising a first light generating device (110), a luminescent body (1200), a thermally conductive element (500), and an axicon-like optical element (400); wherein: (A) the first light generating device (110) is configured to generate first device light (111); the first light generating device (110) comprises one or more of a superluminescent diode and a solid state laser; (B) the luminescent body (1200) comprises a luminescent material (200) configured to convert at least part of the first device light (111) into luminescent material light (201); the luminescent body (1200) has an annular shape; (C) the thermally conductive element (500) (a) is configured in thermal contact with at least part of the luminescent body (1200), and (b) is reflective for one or more of the first device light (111) and the luminescent material light (201); (D) the axicon-like optical element (400) comprises a first part (410) and a second part (420), and has an optical eleme

Abstract: A lighting circuit comprises a first light source arrangement and a second light source arrangement, of different types, in series. A driver delivers a controllable current to the light source circuit, with an adjustable DC component and an adjustable modulated component, for example an adjustable duty cycle of a superposed pulse width modulated component. This enables control of the contributions to the overall light output flux from the different types of light source.

Abstract: The invention provides a light generating system (1000), configured to generate system light (1001), wherein the light generating system (1000) comprises a light source (10), a first luminescent material (210), and a control system (300), wherein: —the light source (10) is configured to generate light source light (11) having a tunable spectral power distribution within a first wavelength range (?x1); wherein the light source (10) comprises a superluminescent diode; —the first luminescent material (210) is configured to convert at least part of the light source light (11) into first luminescent material light (211) having one or more wavelengths in a first luminescent material light wavelength range (?m1); —the first luminescent material (210) is configured such that in an operational mode the system light (1001) comprises the first luminescent material light (211); —a spectral power distribution of the system light (1001) is controllable in dependence of the spectral power distribution of the light source li

Abstract: The invention provides a luminaire configured to be connected to a track of a track lighting system that is mounted to a mounting surface, wherein the luminaire comprises: a back surface facing the track when the luminaire is connected to said track; a planar light exit window arranged opposite to the back surface; a connector connected to the back surface and protruding a connector length away from the back surface, wherein the connector is configured to connect the luminaire mechanically and electrically to said track; at least one spacer element connected to the back surface and protruding a spacer length away from the back surface, wherein the at least one spacer element is configured to contact the mounting surface when the luminaire is connected to said track.

Abstract: A method for producing a 3D item (1) by means of fused deposition modelling of 3D printed material (202) on a receiver item (550), wherein the 3D item (1) comprises a plurality of layers (322) of 3D printed material (202); wherein: (a) the printable material (201) comprises a semi-crystalline polymer; (b) the 3D printable material (201) has (i) a melting temperature range, ranging from a first melting temperature TM1 to a second melting temperature TM2, wherein TM2>TM1, and (ii) a crystallization temperature range, ranging from a second crystallization temperature Tc2 to a first crystallization temperature Tci, wherein TC2>TC1; (c) the 3D printing stage comprises guiding the 3D printable material (201) through a printer nozzle (502) at a nozzle temperature TN; wherein TN>TM2; (d) the method comprises during a first sub-stage of the 3D printing stage: depositing 3D printable material (201) on the receiver item (550) having a first receiver item temperature TB1, to provide n1 first layers (1322) on the

Abstract: The invention provides a light generating system comprising a first light generating device, a second light generating device, a first luminescent material, and a control system, wherein: (A) the first light generating device comprises a first laser light source and is configured to generate first device light (111) having a first device light peak wavelength (?1) and having a first spectral power distribution; wherein the first device light peak wavelength (?1) is selected from the wavelength range of 425-465 nm; (B) the second light generating device comprises a second laser light source and is configured to generate second device light (121) having a second device light peak wavelength (?2) and having a second spectral power distribution, different from the first spectral power distribution; wherein the second device light peak wavelength (?2) is selected from the range of 470-490 nm; (C) the first luminescent material is configured in a light receiving relationship with the first light generating device a

Abstract: The invention provides a method for producing a 3D item by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer-wise depositing 3D printable material, to provide the 3D item comprising 3D printed material, wherein the 3D item comprises layers of 3D printed material, wherein the 3D printable material comprises thermoplastic material, wherein during at least part of the 3D printing stage the 3D printable material further comprises porous inorganic particles embedded in the thermoplastic material, wherein the porosity of the inorganic particles is in the range 5-60 vol. %, and wherein the inorganic particles (410) have an open porosity. The invention also comprises the product resulting from above method.

Abstract: A device including a first solid-state light source configured to emit white light; a second solid-state light source configured to emit violet light having a dominant peak wavelength in a wavelength range from 380 to 420 nm; a collimator configured to collimate the white light along the main optical axis into a white light beam having a first spatial light distribution with a first Full Width Half Maximum (FWHM1); and a batwing optic configured to shape the violet light along the main optical axis into a batwing shaped light distribution with a maximum intensity at an angle ? with respect to the main optical axis, such that the angle ? is outside the first FWHM1.

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: (A) the first light generating device (110) comprises a first laser light source and is configured to generate first device light (111) having a first device peak wavelength (?1) and having a first spectral power distribution; wherein the first device peak wavelength (?1) is selected from the wavelength range of 445-475 nm; (B) the second light generating device (120) comprises a second laser light source and is configured to generate second device light (121) having a second device peak wavelength (?2) and having a second spectral power distribution, different from the first spectral power distribution; wherein the second device peak wavelength (?2) is selected from the range of 420-450 nm or from the range of 470-490 nm; (C) the luminescent material (200) is e

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: The invention provides a disinfection lighting device configured to provide device light along a main optical axis, said disinfection lighting device comprising: a first solid-state light source configured to emit white light: a second solid-state light source configured to emit violet light having a dominant peak wavelength in a wavelength range from 380 to 420 nm: a collimator configured to collimate said white light along the main optical axis into a white light beam having a first spatial light distribution having a first Full Width Half Maximum (FWHM1): a batwing optic configured to shape said violet light along the main optical axis into a batwing shaped light distribution, wherein the batwing shaped light distribution has a maximum intensity at an angle (?) with respect to said main optical axis: wherein said angle (?) of a maximum intensity of the batwing shaped light distribution is outside said first Full Width Half Maximum (FWHM1) of the first spatial light distribution of the white light beam.

Abstract: The invention provides a radiation generating system comprising a radiation unit, wherein the radiation unit comprises a light source, a first collimator, and an optical arrangement, wherein: (a) the light source is configured to generate light source radiation having a first spectral power distribution having an intensity I1,1 at a first wavelength ?1 and an intensity I1,2 at a second wavelength ?2; (b) the first collimator is configured in a light receiving relationship with the light source, wherein the first collimator is configured to collimate the light source radiation into collimated light source radiation; (c) the optical arrangement is configured downstream of the first collimator and is configured to convert the collimated light source radiation into arrangement radiation; wherein the arrangement radiation is collimated relative to the collimated light source radiation; wherein the optical arrangement comprises a second collimator and an optical filter, wherein: (i) the second collimator is configu

Abstract: A light emitting system (1) for disinfecting a target area (5), the light emitting system (1) comprising a first light emitting device (2) comprising a first light source (21) configured to, in operation, emit a first UV light beam (22) towards the target area (5), and a second light emitting device (3) comprising a second light source (31) configured to, in operation, emit a second UV light beam (32) towards the target area (5), the first light emitting device (2) and the second light emitting device (3) being arranged spaced apart from one another in a direction perpendicular to vertical, and the first light source (21) and the second light source (31) being arranged such that, in operation, the first UV light beam (22) and the second UV light beam (32) are emitted in such respective directions that the first UV light beam and the second UV light beam form an exposure overlap at the target area.