Abstract: A method comprises obtaining (101) media content information, e.g. media content, determining (103) a first color value based on a color value extracted from a current frame of the content, determining (105) one or more second color values based on one or more color values extracted from a plurality of previous sequential frames of the content and adjusting (109) a first weight for weighting the first color value in a calculation of an average color, one or more second weights for weighting the one or more second color values in the calculation of the average color, and/or the one or more second values upon detecting (107) a transition in the content. The method further comprises calculating (111) the average color from the first color value and the one or more second color values and determining (113) one or more light effects based on the average color.

Abstract: A method comprises determining (203) whether a person has been and/or will be irradiated with an amount of UV radiation exceeding a threshold and controlling (205), in dependence on the determination, one or more light sources to render light comprising a light component having wavelengths in the range 550 to 900 nm. A spectral power distribution of the light is chosen such that the light has a cytochrome C oxidase efficacy complying with the following conditions: for DNA synthesis: the cytochrome C oxidase efficacy is at least 6.2*v?-2.48 mW/lm if the light’s v? is lower than 0.539 or at least 0.85 mW/lm if the light’s v? is equal to or higher than 0.539; for RNA synthesis: the cytochrome C oxidase efficacy is at least 7.5*v?-2.975 mW/lm if the light’s v? is lower than 0.539 or at least 1.05 mW/lm if the light’s v? is equal to or higher than 0.539.

Abstract: The invention provides a lighting system (1000) configured to provide lighting system light (1001), the lighting system (1000) comprising: —a first light source (10) configured to generate first light source light (11) having an emission band with a peak wavelength selected from the range of 380-420 nm; —a second light source (20) configured to generate second light source light (21), spectrally different from the first light source light (11), having an emission band with a peak wavelength selected from the range of 425-440 nm; —a third light source (30) configured to generate third light source light (31), spectrally different from the first light source light (11) and from the second light source light (21), having an emission band with a peak wavelength selected from the range of 445-465 nm; —a luminescent material (200) configured to convert part of one or more of the first light source light (11), the second light source light (21), the third light source light (31), and optional fourth light source lig

Abstract: The invention provides a lighting system (1000) configured to provide lighting system light (1001), the lighting system (1000) comprising: —a first light source (10) configured to generate first light source light (11) having an emission band with a peak wavelength selected from the range of 380-420 nm; —a second light source (20) configured to generate second light source light (21), spectrally different from the first light source light (11), having an emission band with a peak wavelength selected from the range of 425-440 nm; —a third light source (30) configured to generate third light source light (31), spectrally different from the first light source light (11) and from the second light source light (21), having an emission band with a peak wavelength selected from the range of 445-465 nm; —a luminescent material (200) configured to convert part of one or more of the first light source light (11), the second light source light (21), the third light source light (31), and optional fourth light source lig

Abstract: A system is configured to sequentially turn on each of a plurality of sets (13-15) of one or more light sources and capture an image (53) of a spatial area comprising the plurality of sets of one or more light sources. Each of the images captures a similar or same spatial area and comprises only one (15) of the plurality of sets of one or more light sources in a turned-on state. The system is further configured to combine the images into a combined image. The combined image comprises each of the plurality of sets of one or more light sources in a turned-on state.

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: 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: An auto-stereoscopic display uses a steering backlight to enable individual views to be directed to desired locations corresponding to the position of the eyes of a viewer. However, a single (i.e. monoscopic) image is provided at large angles where the quality of an auto-stereoscopic image may drop below acceptable levels. This is achieved by addressing the light sources in the steering backlight as a function of angle.