Koninklijke Philips Corporation N.v.

Signify Holding B.v.

Philips Lighting Holding B.v.

Gabriel-Eugen Onac

Marcellinus Petrus Carolus Michael Krijn

Cristina Tanase

Marc Andre Peters

Berent Willem Meerbeek

Bart Andre Salters

Evert Jan Van Loenen

Céline Catherine Sarah Nicole

Esther Maria Van Echtelt

Hangfeng Ji

Michel Cornelis Josephus Marie Vissenberg

Jochen Renaat Van Gheluwe

Fetze Pijlman

Ramon Antoine Wiro Clout

Theodorus Johannes Petrus Van Den Biggelaar

Paulus Albertus Van Hal

Rob Franciscus Maria Van Elmpt

Henricus Marie Peeters

Jacobus Dingenis Machiel Van Boven

Petrus Johannes Hendrikus Seuntiens

Stefan Henricus Swinkels

Alexander Jacobus Mariette Van Neer

The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 nmol/sec/mover a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.

Horticulture lighting system and horticulture production facility using such horticulture lighting system

The present invention generally relates to systems and methods of illuminating plants, in particular, to providing supplemental lighting in addition to natural light to plants, and improving the crop yield when using such supplemental lighting. The invention is well suited for use in horticulture, for instance, in greenhouses.

Systems and methods of illuminating plants

A horticultural lighting apparatus for illuminating a plant comprises a lighting module with multiple lighting elements. The lighting module is restricted to operating in a plurality of discrete modes which emit light with different discrete spectral compositions, by emitting light from the lighting elements in different predetermined combinations. These modes comprise a growth mode configured with a spectrum that promotes growth of the plant, and at least one steering mode configured with a spectrum that steers another biological process of the plant, wherein at least one of the lighting elements is arranged to emit in both the growth and steering modes. The apparatus further comprises a controller arranged to switch the lighting module between the plurality of discrete modes.

Horticultural lighting apparatus

The invention provides a lighting system comprising (i) a lighting device comprising a plurality of light sources for application in a horticulture production facility, wherein the light sources are configured to illuminate with horticulture light crops, wherein the lighting system further comprises (ii) a control unit configured to control the light intensity of local light at a location, wherein the local light is the sum of the horticulture light and light at the location originating from an optional other light source, and wherein the control unit is configured to prevent a change in the photosynthetic photon flux density (PPFD) of the local light at the location of on average more than 50 &#x3bc;mol/sec/mover a predetermined period of time selected from the range of equal to or smaller than 5 minutes by controlling the contribution of the horticulture light to the local light.

The present application relates to a method of controlling an artificial light plant growing system (). The method includes receiving information indicative of a production demand for a plant type to be grown in the artificial light plant growing system () and information indicative of an energy supply for a light source () of the artificial light plant growing system (), and controlling operation of the light source () of a plant growing environment of the artificial light plant growing system () in dependence on the received information so that the production rate of a plant () of said plant type grown in the system () versus the production demand and energy supply is optimised. The present application also relates to a computer program comprising instructions which, when executed by at least one processor, cause the method of to be performed, a controller () for controlling an artificial light plant growing system (), and an artificial light plant growing system ().

Method of controlling an artificial light plant growing system

The invention provides a method for enhancing the nutritional value in a first plant part () of a crop (), wherein the first plant part () comprises an edible plant part, wherein the crop () in addition to the first plant part () comprises one or more other plant parts (), wherein the method comprises illuminating during a nutritional enhancement lighting period a target part () of said first plant part () with horticulture light () that is selected to enhance formation of a nutrient in said first plant part () while allowing one or more other plant parts () to be subjected to different light conditions, wherein the nutritional enhancement lighting period is started within two weeks from harvest of the first plant part ().

Method for enhancing the nutritional value in an edible plant part by light, and lighting device therefore

The invention provides a method for providing horticulture light () to a crop (), the method comprising sideways illuminating the crop () with the horticulture light () of a lighting device (), the lighting device () comprising a grid () comprising a plurality of light emitting diodes (LEDs) () and a plurality of through holes (), wherein one or more of the plurality of LEDs () are configured to provide said horticulture light ().

Method for providing horticulture light to a crop and lighting device for horticulture lighting

An optical element for use in front of a light source for obtaining a skylight appearance, and a luminaire are provided. The optical element comprising a plurality of light transmitting cells in a raster structure, a diffuser and an edge wall. A light source emits light towards the raster structure. The raster structure collimates a part of the light and transmits a further part of the light in a predetermined spectral range. White light and colored light that is transmitted by the raster structure may impinge upon the side wall of the optical element. One face of the side wall is a region of specular reflectivity and will reflect the light that impinges upon it back into the chamber that is formed by the cooperation of the raster structure, the diffuser and the edge wall. Light exits the optical element through the diffuser.

Optical element for obtaining a skylight appearance and a luminaire

A lighting element, a lighting system and a luminaire are provided. The lighting elementis used for obtaining a skylight appearance and has a white light emitting meansfor emitting white light, a blue light emitting meansfor emitting blue light and a Fresnel lens. The Fresnel lensis arranged to receive light from the white light emitting meansand from the blue light emitting means. The white light emitting meansis arranged in a first relative position with respect to the Fresnel lensto collimate at least a part of the light emitted by the white light emitting meansto obtain a collimated directed light beam in a specific direction. The blue light emitting meansis arranged in a second relative position with respect to the Fresnel lensto obtain a blue light emission at least outside the collimated directed light beam.

Lighting element, a lighting system and a luminaire providing a skylight appearance

An optical element, a lighting system and a luminaire is provided. The optical element comprises a plateand a plurality of collimating means. The optical element is to be used in front of a light source comprising a light emitting surface, and the optical element is configured to obtain a skylight appearance. The plateis to be arranged parallel to the light emitting surface. The plateis opaque and comprises a plurality of holes. The platefurther comprises a reflective surfacewhich is to be arranged parallel to the light emitting surface. The reflective surfaceis light reflective in a predetermined spectral range to obtain a blue light emission. The plurality of collimating means collimate a part of the light received from the light source to obtain a collimated light beamin a specific direction. Each one of the collimating means comprises one of the plurality of holes of the plate

Optical element, a lighting system and a luminaire for providing a skylight appearance

The present invention relates to alight-emitting panel () comprising: a first panel sheet (), the first panel sheet being optically transparent; a second panel sheet (); and a cellular support panel () sandwiched between the first panel sheet and the second panel sheet. The cellular support panel comprises optically transparent cell walls () defining a plurality of tubular channels () extending from the first panel sheet towards the second panel sheet. The light-emitting panel () further comprises a two-dimensional light-source array () comprising a plurality of light-sources (-;-) each being arranged to emit light into at least one of the tubular channels of the cellular support panel. Various embodiments of the present invention provide a cost-efficient light-emitting panel with advantageous light-emission and mechanical properties.

Light-emitting panel with transparent cellular support panel

The invention provides an interface () for converting a desired physiological plant response into control instructions for at least one lighting system () which has an adjustable lighting property, said interface () comprising: a receiver for receiving a desired physiological plant response; a processor functionally coupled to said receiver for converting said desired physiological plant response into said control instructions, and a transmitter (), functionally coupled to said processor for transmitting said control instructions to said at least one lighting system () wherein said desired physiological plant response is defined as a set point in a multi-dimensional horticulture action space.

Horticulture lighting interface for interfacing at least one lighting system

There is provided a lighting device () comprising at least one light source for providing light, a envelope encompassing said light source, a base to which said envelope is engaged, and a control means for adjusting the lighting settings of said lighting device. The control means are arranged for detecting a position in relation to the base of a point of reference being movably arranged on the lighting device. The lighting settings are adjusted in response to the detected position.

Retrofit lighting device

An optical element for use in front of a light source for obtaining a skylight appearance, a lighting system and a luminaire are provided. The optical element comprises a light transmitting cell which comprises a light transmitting channel, a light input window, a light exit window and a wall. The light transmitting channel collimates a part of light emitted by the light source. The light exit window emits light with the skylight appearance. At least a part of the light exit window is arranged at a second side of the light transmitting channel opposite to the first side. The wall is interposed between the light input window and the part of the light exit window. The wall encloses the light transmitting channel. At least a part of the wall is reflective and/or transmissive in a predefined spectral range to obtain a blue light emission at relatively large light emission angles with respect to a normal to the part of the light exit window.

Optical element for obtaining a daylight appearance, a lighting system and a luminaire

A lighting system for providing a daylight appearance and a luminaire are provided. The lighting system comprises a plurality of light emitters and a plurality of optical elements. Said plurality of light emitters emit a wide light beam. Each optical element of at least a subset of the plurality of optical elements is related to a light emitter of the plurality of light emitters, thereby forming a pair. For each pair it applies that if a light emitter of a pair is arranged in a first relative position with respect to the optical element of said pair, the light emitter and the optical element are configured to emit the wide light beam, and if the light emitter of the pair is arranged in a second relative position with respect to the optical element of said pair, the optical element is configured to collimate a portion of the wide light beam to obtain a collimated light beam, and the optical element is configured to absorb another portion of light of the wide light beam in a predefined spectral range to obtain a blue light emission at light emission angles at least outside the collimated light beam.

Growing community of inventors

Veldhoven, Netherlands

Gabriel-Eugen Onac