Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Philips Lighting Holding B.v.

Cornelis Jojakim Jalink

Hans Nikol

Peter Deixler

Thomas Juestel

Paul Stravers

Geert Willem Van Der Veen

Cornelis Reinder Ronda

Hans-Helmut Bechtel

Julian Charles Nolan

Nicola Bettina Pfeffer

Erik Paul Boonekamp

Martinus Petrus Joseph Peeters

Christoph Gerard August Hoelen

Wolfgang Busselt

Teunis Willem Tukker

Egbert Lenderink

Peter Alexander Duine

Alexander Henricus Waltherus Van Eeuwijk

Aldegonda Lucia Weijers

Thomas J&uuml;stel

Martijn Henri Richard Lankhorst

Stefan Marcus Verbrugh

Lingli Wang

Hans-Peter Stormberg

Marco Van As

Melanie Jane Windridge

Maurice Alexander Hugo Donners

Jelle Hilbrand Schuurmans

Oscar Arturo Chao Pujol

Dick Van Der Voort

Vincent Fischer

Gerardus Arnoldus Rita Van Dijk

Hans Van Sprang

Klemens Brunner

Jean Paul Jacobs

Guido Henri Maria Van Tartwijk

Method and apparatus for granting control of a shared-access system. The method comprises: obtaining () an identity of a user; obtaining () a priority rating associated with the user, wherein the priority rating is updated in response to one or more observed activities of the user, the one or more observed activities being linked to the shared-access system (); comparing the priority rating with a threshold; and granting () control of at least a part of the shared-access system () to the user if the priority rating is above the threshold. For example, each user may have a respective 'strength of association' with the shared-access system or part thereof; the shared-access system may comprise one or more lighting units arranged to illuminate an environment, and a user who is present most often in the environment may be deemed to have the 'strongest association' with the shared-access system.

Granting control of a shared system

Disclosed is a light source having a plurality of light elements and a control system for controlling the light elements. The control system includes a plurality of light element controllers, each connected to a respective light element, and arranged to obtain light element data; and a bus interface, which is connected to the light element controllers via a light source bus. The bus interface provides the light element controllers with a general command, and the light element controllers generate light element drive signals on basis of the general command and the light element data.

Light source luminaire system light element control

Light source having a plurality of light elements () and a control system for controlling the light elements. The control system comprises a plurality of light element controllers (), each connected to a respective light element (), and arranged to obtain light element data; and a bus interface (), which is connected to the light element controllers () via a light source bus (). The bus interface () provides the light element controllers () with a general command, and the light element controllers generate light element drive signals on basis of the general command and the light element data.

Light source luminaire system light element control by symbol tag interpreter

A light source having a plurality of light elements and a control system for controlling the light elements. The control system comprises a plurality of light element controllers, each connected to a respective light element, and arranged to obtain light element data; and a bus interface, which is connected to the light element controllers via a light source bus. The bus interface provides the light element controllers with a general command, and the light element controllers generate light element drive signals on basis of the general command and the light element data.

Controllable light source having a plurality of light elements

The invention relates to a light source for generating light having a spectral emittance in at least a part of the range of 380 nm to 780 nm, the light having a spectral power distribution E(&#x3bb;) as a function of the wavelength &#x3bb;, and a general color-rendering index Ra, wherein the ratio of the integral spectral power distribution over a first range of 575 nm&#x2266;&#x3bb;&#x2266;650 nm to that of a second range of 380 nm&#x2266;&#x3bb;&#x2266;780 nm is given by the relation: and wherein B, &#x2266;0.15 and Ra&#x2267;20. The light generated by the light source has a relatively small disturbing effect on migrating birds, while it still allows acceptable visibility for human beings.

Light source and method for operating a lighting system

A display device () comprising a plurality of lighting units (), each lighting unit comprising at least one light emitting diode () being provided with a fluorescent element () arranged to absorb at least part of the light emitted by said light emitting diode and emit light of a wavelength range different from that of the absorbed light is provided. The fluorescent element () comprises at least one phosphor being an europium(II)-activated halogeno-oxonitridosilicate of the general formula EaSiN:EuOX.

Display device with solid state fluorescent material

An illumination system, preferably for illumination in a car, comprising at least one plain or slightly curved, solid light guide () made of transparent material, said light guide receiving light from a light () source and being provided with means () for extracting light from said light guide, the means for extracting light from said light guide have. Reflecting surfaces () the slopes of which are varied as a function of the position of the extracting means in the light guide as well as the position of a reading plane, so as to direct the light flux to a desired reading plane position. Preferably the illumination system a laminated structure of light guide layers, said layers being formed of a light guide layer for diffuse homogeneous illumination () and at least one light guide layer () for spot illumination of a reading plane.

Illumination system combining diffuse homogeneous lighting with direct spot illumination

A rare-gas low-pressure discharge lamp for generating ultraviolet light, in particular for cosmetic or therapeutic purposes, has a discharge vessel which is filled with rare gas and is at least partly transparent to UV light and which is at least partly coated with a phosphor which radiates UV light upon excitation by an excitation radiation produced in the discharge vessel so as to utilize a desired spectral range.

Rare-gas low-pressure discharge lamp, method of manufacturing a rare-gas low-pressure discharge lamp, and application of a gas discharge lamp

A gas discharge lamp has two electrodes and a gastight, transparent lamp envelope including a filling gas containing mercury and a phosphor coating. The phosphor coating contains a perylene pigment.

Soft-tone fluorescent lamp

A lamp vessel is made from a material which absorbs short-wave UV radiation. In addition, the luminescent screen comprises cerium-activated lunthanum phosphate and a luminescent substance having an emission band whose maximum is situated in the wavelength range from 340 nm and whose half-value ranges between 35 nm and 80 nm. The emission spectrum of the lamp for wavelengths below 400 nm corresponds closely to the solar spectrum while the lamp also has a high erythema L light output.

Low-pressure mercury discharge lamp for tanning

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Eindhoven, Netherlands

Cornelis Jojakim Jalink