US 11,917,958 B2
Light source for plant cultivation
Se Ryung Kim, Gyeonggi-do (KR); Sang Min Ko, Gyeonggi-do (KR); Jin Won Kim, Gyeonggi-do (KR); and Hyun Su Song, Gyeonggi-do (KR)
Assigned to Seoul Viosys Co., Ltd., Gyeonggi-do (KR)
Filed by SEOUL VIOSYS CO., LTD., Gyeonggi-do (KR)
Filed on May 1, 2023, as Appl. No. 18/141,500.
Application 18/141,500 is a continuation of application No. 17/897,925, filed on Aug. 29, 2022, granted, now 11,638,400.
Application 17/897,925 is a continuation of application No. 17/022,531, filed on Sep. 16, 2020, granted, now 11,432,473, issued on Sep. 6, 2022.
Application 17/022,531 is a continuation of application No. 16/548,337, filed on Aug. 22, 2019, granted, now 10,820,532, issued on Nov. 3, 2020.
Claims priority of provisional application 62/870,905, filed on Jul. 5, 2019.
Claims priority of provisional application 62/722,389, filed on Aug. 24, 2018.
Prior Publication US 2023/0263103 A1, Aug. 24, 2023
Int. Cl. A01G 7/04 (2006.01); A01G 9/20 (2006.01); H05B 45/20 (2020.01); H05B 47/16 (2020.01); A01G 31/02 (2006.01); H01L 25/075 (2006.01); H01L 33/32 (2010.01); H01L 33/38 (2010.01); H01L 33/40 (2010.01)
CPC A01G 7/045 (2013.01) [A01G 9/20 (2013.01); H05B 45/20 (2020.01); H05B 47/16 (2020.01); A01G 31/02 (2013.01); H01L 25/0753 (2013.01); H01L 33/325 (2013.01); H01L 33/38 (2013.01); H01L 33/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A light source, comprising:
a light source module configured to emit light toward a plant, the light source module including:
a controller operable to turn on the light module during a light period, and
a plurality of light emitters, the plurality of light emitters including:
a first light emitter having a first active layer emitting light having a first peak wavelength within a first color wavelength band range,
a second light emitter having a second active layer emitting light having a second peak wavelength within a second wavelength band range, and
a third light emitter having a third active layer emitting light having a third peak wavelength different from the second peak wavelength,
wherein the light source module produces a plurality of types of light having different spectral patterns each other,
wherein the controller operates at least one of the plurality of light emitters to provide a first type of light having a first spectral pattern including a relatively high intensity of the first peak wavelength,
wherein the controller operates at least one of the plurality of light emitters to provide a second type of light having a second spectral pattern including a lower intensity of the first peak wavelength, and
wherein the controller selects one of the first and second spectral patterns for at least one growth mode of the plant during the light period.