Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Philips Lighting Holding B.v.

Lars Christian Casper

Rifat Ata Mustafa Hikmet

Ties Van Bommel

Martinus Petrus Joseph Peeters

René Theodorus Wegh

Felix Godfried Peter Peeters

Cristina Tanase

Edgar Martinus Van Gool

Johannes Maria Thijssen

Marijn Geels

Gerardus Wilhelmus Gerbe Van Dreumel

Esther Maria Van Echtelt

Tim Tielemans

Marjolein Yvonne Jansen

Eyob Atnafu Amra

Christina Tanase

Wilbert Bernard Roger Pennings

Eyob Atanfu Amra

Eric Gerard Marie Van Kempen

According to an aspect, there is provided a personal care device () for performing a light-based hair removal or photo-epilation operation on a body of a subject. The personal care device () comprises a housing () that includes a first window or opening (), a light source configured to generate light to perform the light-based hair removal or photo-epilation operation, wherein the light source is arranged in the housing such that light emitted by the light source illuminates a part of the body, a receiving member in or on the housing () for receiving and retaining a consumer electronic device () in or on the personal care device (), and an optical system () in the housing () for enabling an imaging unit () of a consumer electronic device () retained in the recess () to obtain images of a part of the body via the first window or opening ().

Personal care device configured to perform a light-based hair removal

The invention provides a lighting device () with light emitting diodes () configured to generate light () having a wavelength selected from the range of 400-475 nm, wherein the lighting device () comprises at least two light emitting parts (). The first light emitting part () comprises a first subset () of light emitting diodes (), and is configured to provide a first light () having the first spectral light distribution substantially in the range of 400-475 nm. The second light emitting part () comprises a second subset () of light emitting diodes () and comprising a light conversion element () configured to convert at least part of the light () generated from the second subset () of the plurality of light emitting diodes () into the second light (), with the second spectral light distribution substantially in the range of 625-800 nm. The first subset () of the plurality of light emitting diodes () and the second subset () of the plurality of light emitting diodes () are independently controllable.

Lighting device capable of providing horticulture light and method of illuminating horticulture

Presented is an LED module comprising: a printed circuit board, PCB, with a plurality of LEDs mounted thereon; and first and second optical cover plates each comprising an optically transmissive portion and coupled to the PCB so as to cover a respective subset of the plurality of LEDs. The first and second optical cover plates have complementary geometries so that they are self-aligning in two axes.

LED module

The invention provides a lighting device () comprising a light source () and luminescent materials (). The luminescent materials () comprise a first organic luminescent material () and a second organic luminescent material (), the light source () together with the luminescent materials () being configured to generate white lighting device light () during operation. The first organic luminescent material () degrades with time at a first degradation rate and the second organic luminescent material () degrades with time at a second degradation rate, wherein the first degradation rate is larger than the second degradation rate. The first organic luminescent material is configured in a first layer () and the second organic luminescent material is configured in a second layer (). The first layer and/or the second layer is further configured to at least partly compensate for the difference in the first degradation rate and the second degradation rate in order to maintain the lighting device light () substantially white during operation time of the lighting device ().

Lighting device comprising at least two organic luminescent materials

This invention relates to an optical device () for intercanopy lighting comprising a light input area () for receiving light, a first surface () having a first bezier curve, and a second surface () having a second bezier curve. The first and second bezier curves are independently selected with respect to each other, and arranged such that the optical device is rotational asymmetric with respect to its center axis. Received light which is reflected in the first surface is reflected in a direction towards the center axis, and received light which is reflected in the second surface is reflected in a direction away from the center axis, thereby providing vertical and horizontal homogeneous illumination distribution in a predefined area, which area is illuminated under an angle. Thus, a vertical intensity distribution can be selected to be narrow, while simultaneously the horizontal intensity can be selected to be wide, which is advantageous for providing intercanopy lighting at a desired target zone for plants. Simultaneously, the vertical intensity distribution is asymmetric, which is advantageous for meeting homogeneity criteria for lighting of plants.

Optical device, lighting device and system for intercanopy lighting

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Eindhoven, Netherlands

Lars Christian Casper