HORTICULTURE LIGHTING SYSTEM AND HORTICULTURE PRODUCTION FACILITY USING SUCH HORTICULTURE LIGHTING SYSTEM

摘要

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 μmol/sec/m2 over 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.

主权项

1. A lighting system comprising:
a lighting device comprising a plurality of light sources for application in a horticulture production facility comprising said lighting device, wherein the light sources are configured to illuminate with horticulture light crops within said horticulture production facility, wherein the lighting system further comprises a control unit which is configured to control the light intensity of local light at a location within the horticulture production facility, wherein the local light is the sum of the horticulture light and optional 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 of the local light at the location within the horticulture production facility of, on average, more than 50 μmol/sec/m2 over 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, wherein the photosynthetic photon flux density of the local light is determined as a total number of photons within a wavelength range of 400-800 nm per second per unit area of a local light receiving area.