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

Abstract: The invention relates to a laser element module comprising a first laser module comprising a first laser element and a first capacitor, wherein the first laser element is coupled in series with the first capacitor; a second laser module comprising a second laser element and a second capacitor, wherein the second laser element is coupled in series with the second capacitor, wherein the first laser module is coupled in series with the second laser module; a bias current source adapted to provide a first bias current to the first laser element and a second bias current to the second laser element; a modulation current source adapted to provide an alternating current to the first capacitor, wherein the bias current source and the modulation current source, when active, are arranged to provide a total current to the first laser element and the second laser element which is always larger than a lasing current threshold of the first laser element and a lasing current threshold of the second laser element.

Abstract: The invention provides a light generating system (1000) comprising: (i) a first set (1100) comprising n1 first light generating devices (110), (ii) a first optical element (410), and (iii) a luminescent body (200), wherein:—the n1 first light generating devices (110) are configured to generate first device light (111); wherein the n1 first light generating devices (110) may be selected from the group of lasers and superluminescent diodes;—the first set (1100) comprises k1 first subsets (1115) of each at least one first light generating device (110) of the n1 first light generating devices (110), wherein n1?3.

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

Abstract: A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting light source light, a cavity (3) being diffusely reflective and comprising a light exit plane (6), the at least one light source (2) being arranged in the cavity (3), and at least two lamellae (41, 42) arranged extending from a position level with the light exit plane (6) and away from the cavity (3), the at least two lamellae (41, 42) being spaced apart by a spacing (9), wherein each of the at least two lamellae (41, 42) comprises a first major surface (411, 421) being specular reflective and extending in a direction being parallel with a center axis (A) of a main issue direction of light emitted by the light emitting device (1) and facing the spacing (9), and wherein at least one of the at least two lamellae (41, 42) comprises a first plurality of prismatic elements (51, 52) arranged on the first major surface (411, 421) such that at the first major surface (411, 421) light is reflected by the first plur

Abstract: The present invention generally relates to the field of lighting devices, and in particular to a lighting device that is suitable for providing disinfection of an area and/or surrounding environment. The lighting device (100) according to the present invention comprises a light source (101), a first reflector (102), and a second reflector (103). The light source (101) is configured to provide, in operation a light output (111). The first reflector (102) comprising a first reflective surface (121), and the second reflector (103) comprising a second reflective surface (131). The first reflective surface (121) is configured face the second reflective surface (122). The light source (101) is configured to emit the light output (111) towards the second reflective surface (131).

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 present invention generally relates to the field of lighting devices, and in particular to a lighting device that is suitable for providing disinfection of an area and/or surrounding environment. The lighting device (100) according to the present invention comprises a light source (101), a first reflector (102), and a second reflector (103). The light source (101) is configured to provide, in operation a light output (111). The first reflector (102) comprising a first reflective surface (121), and the second reflector (103) comprising a second reflective surface (131). The first reflective surface (121) is configured to face the second reflective surface (122). The light source (101) is configured to emit the light output (111) towards the second reflective surface (131).

Abstract: The invention provides a luminescent arrangement (2000) comprising an array (2005) of luminescent bodies (2100), and a matrix (2210) at least partly configured between the luminescent bodies (2100), wherein the luminescent bodies (2100) comprise a first luminescent material (2110), wherein the matrix (2210) comprise a light transmissive material (2215), wherein the light transmissive material (2215) comprises a second luminescent material (2220), wherein the first luminescent material (2110) and the light transmissive material (2215) are different materials; and wherein the luminescent bodies (2100) comprise ceramic bodies.

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).

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).

Abstract: A tunable laser based light source for Li-Fi communication comprising a laser (1), a first optical element (3), and a second optical element (4). The first optical element (3) is configured to reflect and/or refract a scanning beam (2) emitted from the laser (1). The second optical element (4) is configured to broaden the scanning beam (2) reflected/refracted by the first optical element (3). The scanning beam (2) is configured to scan a scanning area extending with a first scanning length in a broadening direction (SI) and a second scanning length in a scanning direction (S2). The second optical element (4) is configured to broaden the scanning beam (2) in the broadening direction (S1) to a width larger than the first scanning length, and the laser (1) and the first optical element (3) are configured to cooperate to enable the scanning beam (2) to be swept along the scanning direction (S2).

Abstract: The invention provides a light generating device (1000) comprising (i) n laser light sources (10), (ii) focusing optics (20), and (iii) a luminescent body (200), wherein: (A) the n laser light sources (10) are configured to generate laser light source light (11); wherein the focusing optics (20) are configured to focus the laser light source light (11) into a focused beam (21) of laser light source light (11); wherein n?2; (B) the luminescent body (200) comprises a luminescent material (210), wherein the luminescent body (200) is configured in a light receiving relationship with the n laser light sources (10), wherein the luminescent material (210) is configured to convert at least part of the laser light source light (11) into luminescent material light (211); (C) the n laser light sources (10) and focusing optics (20) are configured to provide in an operational mode light spots (300) of laser light source light (11) on the luminescent body (200); wherein k sets of light spots (300) each have an individually

Abstract: The invention provides a luminescent arrangement (2000) comprising an array (2005) of luminescent bodies (2100), and a matrix (2210) at least partly configured between the luminescent bodies (2100), wherein the luminescent bodies (2100) comprise a first luminescent material (2110), wherein the matrix (2210) comprise a light transmissive material (2215), wherein the light transmissive material (2215) comprises a second luminescent material (2220), wherein the first luminescent material (2110) and the light transmissive material (2215) are different materials; and wherein the luminescent bodies (2100) comprise ceramic bodies.

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: The invention provides a light generating device (1000) comprising (i) a plurality of n light sources (100), and (ii) an optical component (1200) comprising an array (200) of prismatic elements (300), wherein: (a) the plurality of n light sources (100) comprise a first subset of one or more first light sources (110) configured to generate collimated first light source light (111) and a second subset of one or more second light sources (120) configured to generate collimated second light source light (121), wherein n>2; (b) the array (200) of prismatic elements (300) is configured in a light receiving relationship with the n light sources (100), wherein the array of prismatic elements (300) comprises k1 parallel arranged first prismatic faces (201) and k2 parallel arranged second prismatic faces (202), wherein k1>2 and wherein k2>2, wherein the first prismatic faces (201) and the second prismatic faces (202) are not mutually parallel; (c) the first light sources (110) are configured to irradiate the f

Abstract: A method is provided, wherein a lighting device (200, 300, 400, 500) comprising an at least partly light transmitting envelope (110) and a solid state light source (120) is manufactured. The method comprises arranging (710) an at least partly light transmitting plastic material (140) in a mold (130) having a surface structure (132) arranged on an inner surface portion of the mold and blow molding (720) the plastic material so as to form the envelope. During the blow molding, the surface structure is at least partly transferred to the at least partly light transmitting plastic material, thereby forming an optical structure (150) on a portion of an outer surface of the envelope. The envelope is then removed (730) from the mold and arranged (740) to at least partly enclose the solid state light source. The optical structure may be formed to generate a desired optical effect.

Abstract: The invention provides a light generating system (1000) comprising a lighting unit (100), a luminescent element (210), an optical element (400), and a reflective element (510), wherein: (a) the lighting unit (100) is configured to generate a beam (102) of unit light (101); (b) the luminescent element (210) comprises a luminescent material (200) configured to convert at least part of the unit light (101) into luminescent material light (201); wherein the luminescent element (210) comprises a first luminescent element face (211) and a second luminescent element face (212), wherein at least part of the luminescent material (200) is configured between the first luminescent element face (211) and the second luminescent element face (212); (c) the optical element (400) comprises an external surface (410), wherein the optical element (400) is configured between the luminescent element (210) and 10 the reflective element (510), wherein a first part (421) of the external surface (410) is directed to the second lumines

Abstract: The lighting device includes a lens array having a plurality of lenses and a focal surface located at a focal distance from the lens array, a light source array having a plurality of light sources arranged to emit light towards the lens array with a light output distributed around a primary axis, and a cover layer having a light-transmissive surface portion delimiting light exit openings. The cover layer is positioned to substantially coincides with the focal surface. Each light source forms a combination with a closest lens, each combination having, in a plane perpendicular to the primary axis, a displacement length and a displacement direction, such that there are least two different displacement lengths and at least two different displacement directions.

Abstract: The invention provides a light generating device (1000) comprising (i) n laser light sources (10), (ii) focusing optics (20), and (iii) a luminescent body (200), wherein: (A) the n laser light sources (10) are configured to generate laser light source light (11); wherein the focusing optics (20) are configured to focus the laser light source light (11) into a focused beam (21) of laser light source light (11); wherein n?2; (B) the luminescent body (200) comprises a luminescent material (210), wherein the luminescent body (200) is configured in a light receiving relationship with the n laser light sources (10), wherein the luminescent material (210) is configured to convert at least part of the laser light source light (11) into luminescent material light (211); (C) the n laser light sources (10) and focusing optics (20) are configured to provide in an operational mode light spots (300) of laser light source light (11) on the luminescent body (200); wherein k sets of light spots (300) each have an individually