Signify Holding B.v.

Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Herman Johannes Gertrudis Gielen

Peter Hubertus Franciscus Deurenberg

Vincent Stefan David Gielen

Martinus Petrus Joseph Peeters

Jie Fu

Marco Haverlag

Shu Xu

Peter Alexander Duine

Xianhui Zhang

Wouter Oepts

Dirk Jan Van Kaathoven

Shan Shan Wang

Remco Christianus Wilhelmus Leermakers

Junhu Liu

Esther De Beer

Jimmy Peet

Shan Wang

A Light Emitting Diode, LED, based lighting device arranged for emitting a particular emitted light following a Planckian locus in a color space, the LED based lighting device comprises a first LED channel comprising a plurality of LEDs, wherein the first LED channel is tuned to emit light having a first chromaticity in the color space, a second LED channel comprising a plurality of LEDs, wherein the second LED channel is tuned to emit light having a second chromaticity in the color space, a controller for activating the first and the second LED channel such that LED based lighting device emits light having a color in between the first and the second chromaticity in the color space, wherein the LED based lighting device further comprises a third LED channel connected in between the at least two LED channels, wherein the third LED channel comprises one or more LEDs and wherein the third LED channel is tuned to emit light having a third chromaticity in the color space, wherein the third LED channel effectuates that at least one LED of the second LED channel is activated when the first channel is actuated, thereby ensuring that the emitted light follows the Planckian locus in the color space in between the first and the second chromaticity in the color space.

Light emitting diode, LED, based lighting device arranged for emitting a particular emitted light following a Planckian locus in a color space

The invention provides an improved lighting module, the lighting module comprising an elongated carrier and a flexible circuit. The flexible circuit comprises a first section accommodating a plurality of LED light sources, a second section, and a connector for receiving power to power said plurality of LED light sources; wherein the connector is accommodated in the second section for receiving power to power said plurality of LED light sources and extends at least partly in the first section. The elongated carrier comprises first end-face and a second end-face, and extending there between comprises a first elongated main surface and a second elongated main surface, the second elongated main surface being opposite to said first elongated main surface; wherein the first section of the flexible circuit is connected to said first elongated main surface, and wherein the second section of the flexible circuit is connected to said second elongated main surface.

Lighting module

The invention provides a luminaire () comprising a hollow light transmissive body (), an LED assembly () comprised by the hollow light transmissive body (), and a first end cap () closing the hollow light transmissive body () at a first end () of the hollow light transmissive body () and functionally coupled to the hollow light transmissive body (); wherein (i) the LED assembly () is functionally coupled to a connector part (); (ii) the first end cap () is functionally coupled to a complementary connector part (), complementary to the connector part (); and (iii) the LED assembly () and the first end cap () are associated with each other through the connector parts (), while allowing a translational movement of the LED assembly () along a longitudinal axis () relative to the hollow light transmissive body ().

Luminaire closing construction based on LED assembly tightening

A lighting unit has an input connector which has a first terminal arrangement which connects to a protection circuit to engage a lighting driver in an initial connection of the lighting unit () and the lighting driver (), and a second terminal arrangement which connects to a light source. The second terminal arrangement is adapted to engage the lighting driver later than an engagement of the first terminal arrangement to the light driver. The protection circuit () is adapted to operate earlier than an engagement of the light source () to the lighting driver (). The protection circuit prevents current surges from being delivered by the lighting driver at the time of connection of the lighting unit. The protection circuit is only applied temporarily, before direct connection is made between the light source and the lighting driver.

Lighting unit with a protection circuit and method of connecting a lighting unit and a protection circuit

A light emitting module (), adapted to produce white output light having an emission peak in the wavelength range from 400 to 440 nm, comprises: &#x22c5;&#x2014;at least one first light emitting element () adapted to emit light having an emission peak in a first wavelength range from 440 to 460 nm; &#x22c5;&#x2014;at least one wavelength converting material () arranged to receive light emitted by said first light emitting element, and being capable of emitting light having an emission peak in the green to red wavelength range; and &#x22c5;&#x2014;at least one second light emitting element () adapted to emit light having an emission peak in a second wavelength range from 400 to 440 nm. The module according to the invention provides white light of acceptable color rendering with a 'crisp white' effect.

White light emitting module

A lighting controller and method has light sources which are activated for a respective lighting duration in a repeating non-overlapping sequence. The end of the lighting duration for one light source is detected for triggering the switching on of the next light source in the sequence. This provides non-overlapping control of the light sources and provides an efficient and easy to implement the required controller.

Method of controlling a lighting arrangement, a lighting controller and a lighting system

The present invention relates to a lighting module (), a modular lighting system () and a method of manufacturing such a lighting module. The lighting module comprises a board () having a central portion () and a peripheral edge () adapted to be coupled to the peripheral edge of the board of another lighting module, and a plurality of light sources () arranged at the board such that the pitch in proximity to the peripheral edge is larger than the pitch in proximity to the central portion. The present invention is advantageous in that it enables the realization of a modular lighting system whose luminance distribution is perceived as more homogenous. The pitch between the light sources of the board can be reduced while reducing the perception of any dark areas between neighboring lighting modules as illuminance interruptions (or discontinuities).

Lighting module for a modular lighting system

Low-pressure mercury vapor discharge lamp has a discharge vessel () enclosing, in a gastight manner, a discharge space () provided with a filling of mercury and an inert gas in a gastight manner. The discharge vessel comprising electrodes () arranged in the discharge space for maintaining a discharge in the discharge space. According to the invention, the probability of failure of the low-pressure mercury vapor discharge lamp being substantially determined by one of the electrodes. As upon igniting the low-pressure mercury vapor discharge lamp the ignition-related events influence the electrodes, preferably, the ignition-related events substantially are prevented affecting the one electrode.

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Valkenswaard, Netherlands

Herman Johannes Gertrudis Gielen