Signify Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Oledworks Gmbh

Rémy Cyrille Broersma

Martinus Petrus Joseph Peeters

René Theodorus Wegh

Rene Theodorus Wegh

Dragan Sekulovski

Rene Jan Hendriks

Marcel Rene Bohmer

Jie Fu

Kars-Michiel Hubert Lenssen

Johannes Petrus Wilhelmus Baaijens

Lucas Josef Maria Schlangen

Hendrik Johannes Boudewijn Jagt

Norbertus Antonius Maria Sweegers

Ludovicus Johannes Lambertus Haenen

Shu Xu

Aldegonda Lucia Weijers

Jozef Willebrordus Van Roosmalen

Cristina Tanase

Joris Hubertus Antonius Hagelaar

Marcellus Jacobus Johannes Van Der Lubbe

Henricus Marie Peeters

Rob Franciscus Maria Van Elmpt

Bianca Maria Irma Van Der Zande

Wiebe Wagemans

Ingrid Jozef Maria Snijkers-Hendrickx

Grigory Alexandrovich Onushkin

Johannes Martinus Jansen

Patrick Henricus Johannes Van Stijn

Fritz Helmut Zahn

Malgorzata Perz

René Jan Hendriks

Theodora Antonia Petra Maria Keursten

Susanne Lina Goldbach

Wilhelmus Johannes Hendricus Ansems

Esther De Beer

Olena Ivanova

Yue Jun Sun

Anna Wilhelmina Maria De Best

Rainier Franciscus Xaverius Alphonsus Marie Mols

Martin Herman Weggen

Brankica Jovanovic

Paulina Maria Christina Neilen-Ten Wolde

Ingrid Josef Maria Snijkers-Hendrickx

Martinus Petrus (Martin) Creusen

Ronaldus Johannes Marie Velings

Jiang Hong (Joan) Yu

Jiang Hong Yu

Martinus Petrus Creusen

Ronaldus Johannes Maria Velings

A lighting device comprising a light source being configured to generate source light of a white light emission spectrum having a color correlated temperature (CCT) in a range of 2500-20000K and comprising a control unit being configured to control a lighting element for tuning of the source light with respect to a ratio between a first emission peak in a wavelength range of 460-490 nm and a second emission peak in a wavelength range of 430-460 nm. Thus a lighting device with a tunable/adjustable spectrum is provided that can switch between a first operation state of energy efficiency lighting with a blue peak in the second wavelength range of 430-460 nm, but with blue hazard risk, and a second operation state of less efficient but safe, healthy lighting with a biological stimulant having a blue peak in the first wavelength range of 460-490 nm.

Lighting device, lighting system and use thereof

The invention provides alighting device () comprising a solid state light source () configured to generate light source light () and a converter element () configured to convert at least part of the light source light () into converter element light (), wherein the converter element () comprises a polymeric host matrix element () hosting a particulate first luminescent material () of the type MAXdoped with tetravalent manganese, wherein M comprises an alkaline cation, wherein A comprises a tetravalent cation, and wherein X comprises a monovalent anion, at least comprising fluorine (F), wherein the particulate first luminescent material () is available in the polymeric host matrix element () with an average weight percentage x averaged over the polymeric host matrix element (), wherein the polymeric host matrix element () has a first outer face (), wherein an outer layer volume defined by at least part of the first outer face () and a first distance (d) from said first outer face () hosts the particulate first luminescent material () with a first local weight percentage y averaged over the outer layer volume with a ratio of the first local weight percentage y over the averaged weight percentage x of y/x&#x2264;0.1, and wherein the first distance (d) is at least 10 &#x3bc;m.

LED light source with fluoride phosphor

The invention provides a light generating device () configured to generate in a first control mode device light (), wherein the light generating device () comprises (i) a first source () of first light (), and (ii) a second source () of second light (), different from the first light (), wherein the second light () comprises cyan-like light having a wavelength selected from the range of 470-520 nm, wherein the device light () comprises the first light () and the second light (), and wherein in the first control mode the first light () is white light and the device light () is white light enriched with cyan-like light.

Cyan enriched white light

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

Artificial lighting system for fish and a method of providing fish lighting

A method of emitting light from one or more light emitting elements, the method comprising: emitting a first time period of photopic light, followed by emitting a first time period of scotopic light, followed by emitting a second time period of photopic light, and followed by emitting a second time period of scotopic light; wherein a first transition from the first time period of photopic light to the first time period of scotopic light is different compared to a second transition from the second time period of photopic light to the second time period of scotopic light, and/or wherein a third transition from the first time period of scotopic light to the second time period of photopic light is different compared to a fourth transition from the second time period of scotopic light to the first time period of photopic light or a third time period of photopic light.

Illuminating an environment

An OLED lighting module comprising a support (); an OLED lighting panel () with an emissive side with emissive and non-emissive areas () and an opposite side which comprises an OLED substrate (), an OLED light-generating unit and a circuit board (); an opaque liner with a first section () that covers at least part of the non-emitting areas () over the OLED substrate and a second section () that extend past the edges of the OLED substrate on the emissive side of the OLED panel; and an opaque bezel () in contact with the support (), the opaque bezel () covering at least part of the second section () of the opaque liner but not the first section () of the opaque liner. By covering only that portion of an opaque liner that extends past the edges of the OLED substrate with a bezel and not the OLED substrate itself, the module can be made thin.

Thin OLED lighting module

A lighting device includes at least one first light-emitting element configured to emit a first light of a first wavelength range; and a light guide having axially opposite first and second base surfaces, and a plurality of segments, each with a first light in-coupling surface formed on a lateral surface of the light guide, each of the segments configured to convert at least a part of input light into second light having a selected wavelength range. At least a portion of the first base surface includes a second light in-coupling surface and at least a portion of the second base surface includes a light out-coupling surface. The lighting device is optically coupled to the second light in-coupling surface such that the first light is coupled into the light guide, and the first light emitting element is configured to reflect at least part of the second light thereon having a wavelength within at least one of the selected wavelength ranges back into the light guide.

Spot lighting device having light guide with plurality of light converting segments

The invention provides a light emitting diode (LED) lighting system () comprising a string (ST) including a number of light emitting diode (LED) elements () functionally connected with an AC voltage source () configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S, S, S, . . . ), with each segment (S, S, S, . . . ) comprising at least one or more of said light emitting diode (LED) elements (), wherein the light emitting diode (LED) lighting system () is configured to connect a first segment (S) in the string (ST) between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a first threshold, and to connect the first segment (S) and a second segment (S) in the string between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a second threshold bigger than said first threshold, wherein each LED element () comprises a light emitting diode () configured to generate blue LED radiation (), wherein said first segment (S) comprises a second photoluminescent material comprising LED element (), wherein the second photoluminescent material comprising LED element () comprises (a) light emitting diode () and (b) a second photoluminescent material () configured to convert at least part of said LED radiation () into second conversion radiation () in the visible, and wherein said second photoluminescent material () only has a decay time of the second conversion radiation () smaller than 1 ms, and said second segment (S) comprise first photoluminescent.

AC-LED with hybrid LED channels

Lighting device includes a first concentrator with a first luminescent material, a second concentrator with a second luminescent material having an absorption band overlapping with the emission band of the first luminescent material, and a plurality of light sources arranged to project light into a first input surface of the first concentrator to be converted at least partially into a first converted light by the first luminescent material and outputted from a first output surface of the first luminescent concentrator. The second concentrator arranged parallel to the first concentrator such that light from the light sources that leaks from a side surface of the first concentrator is received by the second concentrator and converted by the second luminescent material and outputted from a second exit surface of the second concentrator. The first and second concentrators having different lengths.

Lighting device with plurality of stacked luminescent concentrators

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.

Bio hue lamp

The invention provides a lighting system (), configured to provide lighting system light (), the lighting system comprising: &#x2014;a light source () configured to provide light source light () with light intensity in the blue spectral region; &#x2014;a first luminescent material () configured to convert at least part of the light source light () into first luminescent material light () with light intensity in the green spectral region and having a full width half maximum (FWHM) of at least 90 nm; &#x2014;a second luminescent material () configured to convert (i) at least part of the light source light (), or (ii) at least part of the light source light () and at least part of the first luminescent material light () into second luminescent material light () with light intensity in the spectral region of 610-680 nm; wherein the lighting system () is configured to provide at a first setting of the lighting system () lighting system light () comprising said light source light (), said first luminescent material light () and said second luminescent material light () having a color point (x; y) with x=0.38&#xb1;0.1 and with y=0.28&#xb1;0.1.

Meat lighting system with improved efficiency and red oversaturation

A solid state light emitter package (), 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 () which emit violet/blue light, red light and further light, respectively, ii) a luminescent converter () with luminescent material, iii) an optical element () for mixing at least portion of the light of the different colors of light and iv) a light exit window (). 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.

Solid state light emitter package, a light emission device, a flexible LED strip and a luminaire

There is provided a light emitting module () having at least one light emitting element () which is arranged to emit light of a primary wavelength, and a wavelength converting element () arranged at a distance from the at least one light emitting element (). The wavelength converting element () is arranged to convert at least part of the light of a primary wavelength into light of a secondary wavelength. Further the module () comprises a first optical component () having surface structures () on a surface facing away from the light emitting element (). Light rays incident on the first optical component () at small angles are reflected and light rays incident on the first optical component () at large angles are transmitted and bent towards a normal of the first optical component (). The invention is advantageous in that it provides a compact and efficient light-directing module.

Beam shaping light emitting module

The electric lamp comprises a lamp vessel ( ) which is transparent to visible light and which accommodates a light source. At least a part of the lamp vessel ( ) is covered with a light-absorbing coating ( ). According to the invention, the light-absorbing coating ( ) comprises a network which can be obtained by conversion of an organically modified silane by a sol-gel process. The organically modified silane is selected from the group formed by compounds of structural formula R&prime;Si(OR&Prime;) , wherein R&prime; is an alkyl or aryl group and R&Prime; is an alkyl group. Preferably, R&prime; is CH or C H and R&Prime; is CH or C H . Nano-sized silica particles having a diameter d&lE;50 nm may be incorporated in the network. The pigment is preferably chosen from the group formed by Fe O , P-doped Fe O , ZnFe O , ZnO.Fe O , CoAl O , Nd O , BiVO and zirconium praseodymium silicate or mixtures thereof. The light-absorbing coating ( ) of the electric lamp according to the invention is optically transparent, substantially free of scattering and stable at temperatures up to 350&deg; C.

Electric lamp

The present invention relates to an improved maintenance, low-pressure mercury vapor discharge lamp having a discharge vessel enclosing a discharge space provided with a filling of mercury and a rare gas in a gastight manner. The discharge vessel is made from a glass of essentially 60-80% by weight SiO and 10-20% by weight Na O. Preferably, the composition of this so-called sodium-rich glass is made of 70-75% by weight SiO , 15-18% by weight Na O and 0.25-2% by weight K O. At least a part of the inner surface of the discharge vessel is provided with a transparent layer having a borate or a phosphate of an alkaline-earth metal and/or of scandium, yttrium or another rare earth metal. Preferably, the alkaline-earth metal is calcium, strontium and/or barium. In a particularly preferred embodiment, the transparent layer is made of yttrium borate and strontium borate. Additionally, the transparent layer preferably has a thickness between 5 and 200 nm and has provided on it a luminescent layer.

Low-pressure mercury vapor discharge lamp and compact fluorescent lamp

Growing community of inventors

Eindhoven, Netherlands

Rémy Cyrille Broersma