US 11,812,708 B2
Lighting system and a method for improving growth conditions for plants
Kolbjørn Sæther, Stavanger (NO); and Tore Kolås, Trondheim (NO)
Assigned to Mobile Lighting Rig AS, Stavanger (NO)
Appl. No. 18/010,148
Filed by Mobile Lighting Rig AS, Stavanger (NO)
PCT Filed Jun. 25, 2021, PCT No. PCT/NO2021/050155
§ 371(c)(1), (2) Date Dec. 13, 2022,
PCT Pub. No. WO2021/262010, PCT Pub. Date Dec. 30, 2021.
Claims priority of application No. 20200749 (NO), filed on Jun. 25, 2020.
Prior Publication US 2023/0240196 A1, Aug. 3, 2023
Int. Cl. A01G 7/04 (2006.01); F21V 21/30 (2006.01); F21Y 115/10 (2016.01)
CPC A01G 7/045 (2013.01) [F21V 21/30 (2013.01); F21Y 2115/10 (2016.08)] 17 Claims
OG exemplary drawing
 
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.