Koninklijke Philips Corporation N.V.

U.S. Philips Corporation

Philips Lighting Holding B.v.

Koninklijke Phillips Electronics N.v.

U.S. Philips Cororation

Hans Nikol

Thomas J&uuml;stel

Cornelis Reinder Ronda

Wolfgang Busselt

Thomas Justel

Herbert Friedrich Boerner

Walter Mayr

Thomas Juestel

Helmut Bechtel

Cornelis Jojakim Jalink

Peter Johannes Martinus Bukkems

Antonius Adrianus Maria Marinus

Jacqueline Merikhi

Herbert Friedrich B&ouml;rner

Arie Van Der Padt

Dirk Jan Broer

Hans-Helmut Bechtel

Herfried Karl Wieczorek

Markus Heinrich Klein

Detlef Uwe Wiechert

Carolina Ribbing

Herman Stegehuis

Peter Klaus Bachmann

Robert Van Asselt

Thomas Jüstel

Wolfram Czarnojan

Dick Van Der Voort

Matthijs Adriaansz

Rob Snijkers

Harald Gl&auml;ser

J&uuml;rgen Dirscherl

Gerard Harbers

Johannes T W De Hair

Cees Ronda

Cornelis Rhonda

Han Kroon

Juergen Dirscherl

Herbert F Borner

Cornelis W A Schetters

A lighting device includes a first and second opposed light sources, a first and second electrically insulating heat sink elements having overlapping portions separated by a distance, and a first and second flexible electrically conducting layers arranged in contact with the first and second light sources, respectively. The first and second electrically conducting layers are mounted to the first and second heat sink elements, respectively. The first and second heat sink elements each include a recess having shape of the first and second electrically conducting layers, respectively.

Lighting device with overlapping and offset heat sinks

A lighting device includes at least one light source arranged in contact with an electrically conducting layer, and mechanically secured to an electrically insulating heat sink element.

Lighting device

An imaging apparatus includes a multi-dimensional assembly supporting a plurality of x-ray sources that are individually addressable. The plurality of x-ray sources is further configurable to simultaneously emit x-ray spectra at different mean energies. Furthermore, the multi-dimensional assembly includes a plurality of x-ray detectors that are arranged to detect at least a part of the x-rays that are emitted from at least one of the x-ray sources.

Imaging apparatus using distributed x-ray souces and method thereof

A plasma picture screen provided with a luminescent layer which comprises a blue Eu-activated phosphor and a UV-C light emitting phosphor. The mixing of an UV-C light emitting phosphor with an Eu-activated phosphor or coating of an Eu-activated phosphor with a UV-C light emitting phosphor or coating of a base layer of an Eu-activated phosphor with a covering layer of a UV-C light emitting phosphor clearly reduces the photodegradation of the Eu-activated phosphors in the VUV range.

Plasma picture screen with blue phospor

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 low-pressure mercury discharge lamp comprising an inner bulb, which forms a gas discharge vessel and the wall of which is made of a material which is transparent to electromagnetic radiation and is coated with a phosphor, and comprising an outer bulb surrounding the inner bulb, the wall of which contains an UV-A phosphor, and comprising means for generating and maintaining a low-pressure mercury gas discharge.

Low-pressure mercury discharge lamp comprising an outer bulb

A metal M is chosen from the group formed by yttrium, aluminum and lanthanum, and a watery solution of a complex of M and an organic chelating agent is added to a suspension of luminescent material, which causes a layer of M O to be deposited on the luminescent material, which is them separated, dried and fired.

Method of coating a luminescent material

A liquid crystal display screen comprising a liquid crystal layer and a first and a second transparent substrate flanking said liquid crystal layer, and comprising means for influencing the transmission state of the liquid crystal layer, and a phosphor layer, containing at least one phosphor in the form of phosphor dots, on the second substrate, and comprising a third substrate, which is arranged opposite the second substrate and connected with said second substrate so as to form a gastight gas discharge vessel filled with a filling gas, and comprising means for igniting and maintaining a dielectrically impeded discharge in the gas discharge vessel.

Liquid crystal display screen with backlighting

A liquid crystal color display screen is provided with an electro-optical medium, two parallel transparent substrates by which the electro-optical medium is flanked, a device that influences the transmission state of the electro-optical medium, and a phosphor layer having at least two phosphors on the first substrate. A radiation source emits radiation having a maximum emission at a wavelength &lgr; <360 nm. The radiation source is situated at the side of the second substrate. The screen also includes a UV phosphor that transforms the radiation having a maximum emission at a wavelength &lgr; <360 nm to radiation having a maximum emission at a wavelength &lgr; >360 nm.

Liquid crystal color display screen comprising a phosphor layer

A plasma picture screen fitted with a phosphor layer comprising a red phosphor activated by Eu shows an improved red color point (x&gE;0.64 and y&lE;0.35) and shorter decay times &tgr; as compared with the standard phosphor (Y,Gd)BO . The phosphor according to the invention has a lattice in which the activator Eu occupies a location which has no inversion symmetry.

Plasma picture screen with red phosphor

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

The invention describes a liquid crystal color picture screen with an improved luminous efficacy and an improved viewing angle. The liquid crystal color picture screen comprises a photoluminescent layer ( ) which contains a dichroically absorbing color agent and an isotropically emitting color agent.

Liquid crystal color picture screen

A plasma picture screen, in particular an AC plasma picture screen with a coplanar arrangement having an enhanced luminance. A UV light emitting layer ( ) is provided on the front plate ( ), which comprises a glass plate ( ) on which a dielectric layer ( ) and a protective layer ( ) are provided, or on the carrier plate ( ) with the phosphor ( ). The layer ( ) comprises a VUV phosphor which converts the VUV light of the plasma discharge into UV light with a wavelength between 200 and 350 nm and emits this in the direction of the phosphor layer ( ).

Plasma picture screen with UV light emitting layer

A plasma display screen including a carrier plate, a transparent front plate, a ribbed structure which divides the space between the carrier plate and the front plate into plasma cells, which are filled with a gas, and including one or more electrode arrays for generating corona discharges in the plasma cells, and including a phosphor layer which includes a phosphor for generating red radiation selected from the group formed by rare earth metal borates of the general formula EA M M Eu B O , where EA&equals;Ca, Sr, Ba; M &equals;Gd, La; M &equals;Y, Lu, Sc, In and 0<x&lE;0.5, 0.01&lE;y&lE;0.4, and M Y Eu BO , where M &equals;Sc,, In, Lu and 0.01&lE;r&lE;0.99, 0.01&lE;s&lE;0.15, is characterized by a red point which has shifted in the direction of a higher color saturation. In addition, the color contrast at brighter ambient lighting conditions is increased.

Plasma display screen comprising a red phosphor

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Aachen, Germany

Hans Nikol