CPC A01G 7/045 (2013.01) [F21V 21/30 (2013.01); F21Y 2115/10 (2016.08)] | 17 Claims |
1. A lighting system for providing photosynthetically stimulating artificial light to a specified target area where such artificial light is needed, said lighting system comprising at least one luminaire with a light source, wherein the luminaire emits photosynthetically stimulating light at a narrow beam angle of less than and including 20° (FWHM), the lighting system further comprising means for positioning the at least one luminaire at a distance of minimum 20 m from the specified target area measured in a light beam direction, and wherein the luminaire is adapted to illuminate the specified target area with a minimum photosynthetic photon flux density of 140 μmol/s/m2.
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