Abstract: The invention provides a lighting system comprising one or more solid state light sources, wherein the lighting system is configured to provide lighting system light having a correlated color temperature of at least 1700 K and having a S* value of at least 33 in a first setting of the lighting system, wherein the S* value is defined as S*=100*(2*A*+B*)/WS with A* being the spectral power in the wavelength range of 380-440 nm, B* being the spectral power in the wavelength range of 660-780 nm, and Ws being the total spectral power in the wavelength range of 380-780 nm of the lighting system light.

Abstract: Lighting systems, devices, methods and apparatus for simulating a candle flame are disclosed. The systems and methods employ spatially distributed, disjointed sets of light-emitting elements that are independently controlled with randomized control signals to simulate a candle flame by forming spatially and temporally varying lighting effects. Further, the disjointed sets are controlled such that the total light intensity is essentially maintained. In addition, systems and methods employ a transition probability model to adjust intensities of light-emitting elements in a way that accurately mimics a candle flame.

Abstract: The present invention relates to a SSL lamp (100) comprising: three or more elongated light emitting structures (102, 104, 106, 108). A respective first end (102a, 104a, 106a, 108a) of each of the three or more elongated light emitting structures (102, 104, 106, 108) are arranged such that they define a first polygon (150). A portion of each of the three or more elongated light emitting structures (102, 104, 106, 108) are arranged in vicinity of each other such that the three or more elongated light emitting structures (102, 104, 106, 108) crosses each other at a smallest angle (?, ??) of at least 30 degrees, thereby forming a common neck (120).

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 lighting device comprising a housing with a light emission window and, opposite thereto, a reflector. A planar light transmissive carrier arranged in between the light emission window and the reflector and comprising, at least on a side facing towards the reflector, a grid of a plurality of light sources. The plurality of light sources comprise a first group of first light sources and a second group of second light sources. Each first light source has a respective first emission orientation in a respective first direction away from the reflector and each second light source has a respective second emission orientation to issue light towards the reflector, which light, after reflection, is redirected into a respective first direction. The lighting device is able to provide accent lighting and/or diffuse lighting issued by light sources arranged on one planar carrier.

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: Lighting systems, devices, methods and apparatus for simulating a candle flame are disclosed. The systems and methods can employ spatially distributed, disjointed sets of light-emitting elements that are independently controlled (526) with randomized control signals to simulate a candle flame by forming spatially and temporally varying lighting effects. Further, the disjointed sets can be controlled (526) such that the total light intensity is essentially maintained. In addition, systems and methods can employ a transition probability model (508) to adjust intensities of light-emitting elements in a way that accurately mimics a candle flame.

Abstract: The present invention relates to a lighting device for illuminating a target object with the objective to draw a person's attention to this target object. It alternatingly provides a relatively fast dynamic light output component and a relatively slow dynamic light output component, the former being predominantly for triggering a person's attention towards a target object, while the latter is mainly for enhancing the visual appearance of the target object, thereby keeping someone's attention for that object. For this purpose, the lighting device is arranged to provide a primary light output alternatingly comprising a first light output component and a second light output component. The lighting device comprises a switching controller for switching between the first light output component and the second light output component after a time interval. The primary light output has a perceived light intensity that remains constant over time within a margin of 10%.

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 for illuminating a target object with the objective to draw a person's attention to this target object. It alternatingly provides a relatively fast dynamic light output component and a relatively slow dynamic light output component, the former being predominantly for triggering a person's attention towards a target object, while the latter is mainly for enhancing the visual appearance of the target object, thereby keeping someone's attention for that object. For this purpose, the lighting device is arranged to provide a primary light output alternatingly comprising a first light output component and a second light output component. The lighting device comprises a switching controller for switching between the first light output component and the second light output component after a time interval. The primary light output has a perceived light intensity that remains constant over time within a margin of 10%.

Abstract: The invention relates to an arrangement (100) comprising a lighting system (110) and a target object (120), wherein the lighting system (110) is arranged to illuminate a target surface of the target object (120) with a primary light output (111) and with a secondary light output (112). Each of these light outputs has an illumination spectrum representing a color. The two illumination spectra are different, but the two colors are substantially the same. The target surface has a first target surface area and a second target surface area. When the first and second target surface areas are illuminated with the primary light output (111), they have a contrast that is lower than when they are illuminated with the secondary light output (112). The arrangement of the invention can be used for atmosphere creation or for attracting attention to the target object (120).

Abstract: A lighting device comprising a housing with a light emission window and, opposite thereto, a reflector. A planar light transmissive carrier arranged in between the light emission window and the reflector and comprising, at least on a side facing towards the reflector, a grid of a plurality of light sources. The plurality of light sources comprise a first group of first light sources and a second group of second light sources. Each first light source has a respective first emission orientation in a respective first direction away from the reflector and each second light source has a respective second emission orientation to issue light towards the reflector, which light, after reflection, is redirected into a respective first direction. The lighting device is able to provide accent lighting and/or diffuse lighting issued by light sources arranged on one planar carrier.

Abstract: A lighting device (1) comprising a housing (3) with a light emission window (5) and, opposite thereto, a reflector (7). A planar light transmissive carrier (9) arranged in between the light emission window and the reflector and comprising, at least on a side (11) facing towards the reflector, a grid (13) of a plurality of light sources (15,17). The plurality of light sources comprise a first group (19) of first light sources (15) and a second group (21) of second light sources (19). Each first light source has a respective first emission orientation (23) in a respective first direction (25) away from the reflector and each second light source has a respective second emission orientation (31) to issue light towards the reflector, which light, after reflection, is redirected into a respective first direction (25a). The lighting device is able to provide accent lighting and/or diffuse lighting issued by light sources arranged on one planar carrier.

Abstract: Proposed is a light module (110) comprising at least two primary light sources (111,112,113) capable of emitting a primary color light. This allows the light module to emit light having intensity (Y) and color coordinates (x,y) through additive color mixing of the constituent primary colors. The light module further comprises an modulator (115) capable of modulating the primary light sources enabling embedment of data in the light emitted. The modulator (115) is arranged to modulate the color coordinates of the light emitted for embedding the data. This is especially advantageous as the sensitivity of the human eye to changes in color is lower than to changes in intensity. The invention thus advantageously allows embedding the data into the light emitted from the light modules (110) of an illumination system (100) without reducing the performance of its primary function as an aid to human vision.

Abstract: Light-based systems for communicating information associated with service orders and/or the identification of personal objects are disclosed. A personal mobile electronic communication device is used in conjunction with a communication network and a lighting controller to communicate service orders by lighting with one or more individually controllable luminaries in a lighting network. A personal mobile electronic communication device is, alternatively or additionally, used in conjunction with a communication network, a memory, and a lighting controller controlling to indicate by lighting whether there is an association between the personal mobile electronic communication device and a personal item.

Abstract: A lighting system (10) is provided that enhances the perceived surface lighting effects on specular and refractive objects (14). Light sources (12) are arranged in spatial distribution to one another above, below, or in at least partially surrounding relation to the specular and/or refractive object to be illuminated. A controller (16) is configured, programmed and/or structured to drive each light source with a temporal variation in a lighting parameter (18), such as the intensity, color, or spectral content of each light source, while maintaining a uniform level of illuminance at the object's surface. The geometric arrangement of the light sources coupled with the controller produces a visually perceptible sparkle at the surface of the object.

Abstract: Light-based systems for communicating information associated with service orders and/or the identification of personal objects are disclosed. A personal mobile electronic communication device is used in conjunction with a communication network and a lighting controller to communicate service orders by lighting with one or more individually controllable luminaires in a lighting network. A personal mobile electronic communication device is, alternatively or additionally, used in conjunction with a communication network, and a lighting controller controlling an illumination proximate to the personal mobile electronic communication device such that the illumination proximate to the personal mobile electronic communication device visually indicates the service order.

Abstract: The invention relates to an arrangement (100) comprising a lighting system (110) and a target object (120), wherein the lighting system (110) is arranged to illuminate a target surface of the target object (120) with a primary light output (111) and with a secondary light output (112). Each of these light outputs has an illumination spectrum representing a color. The two illumination spectra are different, but the two colors are substantially the same. The target surface has a first target surface area and a second target surface area. When the first and second target surface areas are illuminated with the primary light output (111), they have a contrast that is lower than when they are illuminated with the secondary light output (112). The arrangement of the invention can be used for atmosphere creation or for attracting attention to the target object (120).

Abstract: A lighting device (1) comprising a housing (3) with a light emission window (5) and, opposite thereto, a reflector (7). A planar light transmissive carrier (9) arranged in between the light emission window and the reflector and comprising, at least on a side (11) facing towards the reflector, a grid (13) of a plurality of light sources (15,17). The plurality of light sources comprise a first group (19) of first light sources (15) and a second group (21) of second light sources (19). Each first light source has a respective first emission orientation (23) in a respective first direction (25) away from the reflector and each second light source has a respective second emission orientation (31) to issue light towards the reflector, which light, after reflection, is redirected into a respective first direction (25a). The lighting device is able to provide accent lighting and/or diffuse lighting issued by light sources arranged on one planar carrier.

Abstract: Light-based systems for communicating information associated with service orders and/or the identification of personal objects are disclosed. A personal mobile electronic communication device is used in conjunction with a communication network and a lighting controller to communicate service orders by lighting with one or more individually controllable luminaires in a lighting network. A personal mobile electronic communication device is, alternatively or additionally, used in conjunction with a communication network, and a lighting controller controlling an illumination proximate to the personal mobile electronic communication device such that the illumination proximate to the personal mobile electronic communication device visually indicates the service order.