Abstract: The invention provides a light emitting diode (LED) lighting system (1) comprising a string (ST) including a number of light emitting diode (LED) elements (10) functionally connected with an AC voltage source (20) configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S1, S2, S3, . . . ), with each segment (S1, S2, S3, . . .

Abstract: The invention provides a lighting device (100) configured to provide lighting device light (101), the lighting device (100) comprising a solid state light source (10) configured to provide blue light (11) having a peak wavelength (?PWL) selected from the range of 430-455 nm, a first luminescent material (210) configured to convert part of the blue light (11) into first luminescent material light (211) and a second luminescent material (220) configured to convert part of one or more of the blue light (11) and the first luminescent material light (211) into second luminescent material light (221), wherein the solid state light source (10), the first luminescent material (210), and the second luminescent material (220) are selected to provide at a first setting of the lighting device (100) white lighting device light (101) having a CRI of at least 90, a R9 value of at least 70, and a R50 value of at maximum 465 nm, wherein the R50 value is defined as a first wavelength (?50) in a spectral distribution of the whi

Abstract: The invention provides a light emitting diode (LED) lighting system (1) comprising a string (ST) including a number of light emitting diode (LED) elements (10) functionally connected with an AC voltage source (20) configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S1, S2, S3, . . . ), with each segment (S1, S2, S3, . . .

Abstract: The invention provides a three-channel lighting apparatus with the option to support the human circadian rhythm. By choosing especially the blue LED and green phosphor, the range of biological activity that can be changed is optimized. By adjustment of the LED spectra a bigger range in melanopsin effectiveness factor, at the same CCT range (from daylight like CCT down to dimmed halogen), can be obtained.

Abstract: The present invention relates to a lighting device (100) to stimulate plant growth and bio-rhythm of a plant. The lighting device (100) comprising a solid state light source (102) arranged to emit direct red light having a wavelength of 600 to 680 nm, preferably 640 to 680 nm, and a wavelength converting member (106) arranged to receive at least part of said direct red light emitted from said solid state light source (102) and to convert said received direct red light to far-red light having a maximum emission wavelength of 700 to 760 nm, preferably 720 to 760 nm.

Abstract: A lighting module (100) is disclosed, comprising a light-transmissive, elongated member (110) with a light-guiding region (114) within the elongated member (110). The elongated member (110) may be configured such that the light-guiding region (114) permits passage of fluid through the elongated member (110), possibly between a first end (116) and a second end (118) thereof. A plurality of light-emitting elements (170) are coupled to the elongated member (110) within the elongated member (110) and such that the optical axis of at least one light-emitting element is non-perpendicular with respect to a longitudinal axis (LA) of the lighting module (100). A lighting device (200) comprising the lighting module (100) is also disclosed.

Abstract: The invention provides a lighting device (100) comprising a) a light source (10) configured to provide blue light source light (11), b) a first luminescent material (210) configured to convert at least part of the light source light (11) into first luminescent material light (211) with light intensity in one or more of the green spectral region and yellow spectral region, c) a second luminescent material (220) configured to convert (i) at least part of the light source light (11), or (ii) at least part of the light light (11) and at least part of the first luminescent material light (221) with light intensity in the red spectral region, and d) a light exit face (110), wherein the lighting device (100) is configured to provide lighting device light (101) downstream from said light exit face (110), wherein the lighting device light (101) comprises one or more of said light source light (11), said first luminescent material light (211), and said second luminescent material light (221), and wherein the second lum

Abstract: The present invention relates to a frame (100) for supporting a light guide panel (120). The frame (100) being provided with: a solid state light source (102) connected to and arranged on a circuit board (104), the circuit board (104) comprising an electrically insulating outer perimeter portion (104a); an insulation layer (106) being electrically insulating, the insulation layer (106) having a surface area larger than a surface area of the circuit board (104); wherein the insulation layer (106) is arranged on the frame (100); the circuit board (104) is arranged on the insulation layer (106) such that an insulating outer perimeter portion (106a) of the insulation layer (106) is formed outside of the circuit board (106); thereby providing a double insulation of the solid state light source (102) in relation to the frame (100). The invention also relates to a luminaire (130) comprising the frame (100).

Abstract: There is provided a carrier (6) for solid-state lighting devices (2). The carrier (6) is intended to be arranged in a light bulb and is formed from one single flat and formable substrate (1), which has been bent to a generally tube-shaped form. The carrier (6) includes: an annular mounting portion (4) for mounting the carrier (6) inside the light bulb; and two or more strips (5) extending generally parallel to each other from the annular mounting portion (4) and being separated from each other in a tangential direction of the annular mounting portion (4). Each strip (5) has one or more electrically conducting paths (3) and a solid-state lighting device (2) mounted thereon. There is also provided a method for producing a tube-shaped carrier (6).

Abstract: A luminescent product 100, a lamp and a light source are provided for converting light of a first color into light of a second color. The luminescent product 100 comprises a matrix polymer 108 and another material 106. The matrix polymer 108 comprises a luminescent material which converts light of a first color into light of a second color. The another material 106 is light transmitting. The luminescent product 100 is at least partially light transmitting and the matrix polymer has a three dimensional structure which has multiple surfaces being an interface between the matrix polymer and the another material to allow, in use, a light beam 104, which impinges on a side 102 of the luminescent product 100, to pass at least four times an interface between the matrix polymer 108 and the another material 106 before at least a part of the light beam 104 leaves the luminescent product 100 at another side 110 of the luminescent product 100.

Abstract: The invention provides a three-channel lighting apparatus with the option to support the human circadian rhythm. By choosing especially the blue LED and green phosphor, the range of biological activity that can be changed is optimized. By adjustment of the LED spectra a bigger range in melanopsin effectiveness factor, at the same CCT range (from daylight like CCT down to dimmed halogen), can be obtained.

Abstract: A wavelength converting element (101, 102, 103, 110) comprising a polymeric carrier material comprising a first wavelength converting material adapted to convert light of a first wavelength to light of a second wavelength, wherein the oxygen diffusion coefficient (D) of the polymeric carrier material is 8×10?13 cm2/s or less at 25° C. A prolonged lifetime of the wavelength converting material is achieved by selecting a polymeric carrier material with an oxygen diffusion coefficient (D) at 8×10?13 cm2/s or less at 25° C.

Abstract: A lighting module (100) is disclosed, comprising a light-transmissive, elongated member (110) with a light-guiding region (114) within the elongated member (110). The elongated member (110) may be configured such that the light-guiding region (114) permits passage of fluid through the elongated member (110), possibly between a first end (116) and a second end (118) thereof. A plurality of light-emitting elements (170) are coupled to the elongated member (110) within the elongated member (110) and such that the optical axis of at least one light-emitting element is non-perpendicular with respect to a longitudinal axis (LA) of the lighting module (100). A lighting device (200) comprising the lighting module (100) is also disclosed.

Abstract: The invention provides a lighting device (100) comprising a first set of light emitting diodes (10) arranged to emit light (14) in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes (11) arranged to emit light (15) in a second wavelength range of 300 nm-490 nm, a first luminescent element (12) radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element (13) radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light (15) of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light (14) emitted by the first set of light emitting diodes (10) and the brightness level of the light (15) emitted by the second set o

Abstract: The invention relates to a luminescent converter (10, 12) for a phosphor-enhanced light source (100, 102, 104). The luminescent converter comprises a first luminescent material (20) configured for absorbing at least a part of excitation light (hv0) emitted by a light emitter (40, 42) of the phosphor-enhanced light source, and for converting at least a part of the absorbed excitation light into first emission light (hv1) comprising a longer wavelength compared to the excitation light. The luminescent converter further comprising a second luminescent material (30) comprising organic luminescent material (30) and configured for absorbing at least a part of the first emission light emitted by the first luminescent material, and for converting at least a part of the absorbed first emission light into second emission light (hv2) having a longer wavelength compared to the first emission light.

Abstract: A stack of layers 100, a lamp, a luminaire and a method of manufacturing a stack of layers is disclosed. The stack of layers 100 comprises a first outer layer 102, a second outer layer 106 and a luminescent layer 104. The first outer layer 102 and the second outer layer 106 are of a light transmitting polymeric material and have an oxygen transmission rate lower than 30 cm3/(m2-day) measured under standard temperature and pressure (STP). The luminescent layer 104 is sandwiched between the first outer layer 102 and the second outer layer 106 and comprises a light transmitting matrix polymer and a luminescent material 108 being configured to absorb light according to an absorption spectrum and convert a portion of the absorbed light towards light of a light emission spectrum.

Abstract: The invention provides a lighting unit having a light source, configured to generate light source light, and a light converter, configured remote of the light source and configured to convert at least part of the light source light into luminescent material light. The light converter includes (a) a yellow light emitting cerium containing garnet luminescent material, (b) a green light emitting luminescent material, (c) a red light emitting organic luminescent material, and (d) a particulate scattering material.

Abstract: A solid state light emitter package (200), a light emitting device, a flexible LED strip and a luminaire are provided. The solid state light emitter package comprising: i) at least three solid state light emitter dies (132, 142, 152) which emit violet/blue light, red light and further light, respectively, ii) a luminescent converter (120) with luminescent material, iii) an optical element (102, 105) for mixing at least portion of the light of the different colors of light and iv) a light exit window (114). The luminescent material at least partially converts the further light towards greenish light having a peak wavelength in the green or cyan spectral range and has a color emission distribution that is wide enough such that the solid state light emitter package is capable of emitting light with a high enough Color Rendering Index. The Color Rendering Index relates to light that has a color point close to the black body line.

Abstract: The invention provides a light-emitting arrangement (100) comprising a light source (105) adapted to emit light of a first wavelength, and a wavelength converting member (106) arranged to receive light of said first wavelength and adapted to convert at least part of the light of said first wavelength to light of a second wavelength, said wavelength converting member comprising i) a carrier polymeric material comprising a polyester backbone comprising an aromatic moiety, and ii) at least one wavelength converting material of a specified general formula. The perylene derived compounds have been found to have excellent stability when incorporated into said matrix material.

Abstract: A fish lighting system has an input interface (10) which receives instructions corresponding to a desired fish behavioral and/or physiological response (12). This is converted into a lighting control signal (RGB, t) for driving a lighting arrangement (18), with the intensity and color of the output from the lighting arrangement selected to obtain the desired fish behavioral and/or physiological response.