Patent ID: 11910762
Assignee: SEOUL VIOSYS CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A  H | IPC A  H

Claim 0:
1. A light source module for plant cultivation, comprising:
at least two light emitting devices supplying light to a plant, each light emitting device comprising:
a first semiconductor layer doped with a first conductivity type dopant;
a second semiconductor layer disposed on the first semiconductor layer and doped with a second conductivity type dopant different from the first conductivity type dopant; and
an active layer interposed between the first semiconductor layer and the second semiconductor layer;

wherein the light emitting devices comprise:
a first light emitting device emitting a first type of light having a first peak wavelength in one of: the UVB spectrum or in a wavelength range of about 280 nm to about 300 nm; and
a second light emitting device emitting a second type of light having a second peak wavelength in a wavelength range of about 310 nm to about 390 nm; and

a controller configured to operate the light emitting devices to emit light towards the plant under one of a plurality of different conditions, each different condition comprising a different wavelength, a different radiation intensity, and/or a different emission timing, configured to control a type and a content of a phytochemical in the plant,
wherein the controller selects one of the plurality of different conditions for operation of the light emitting devices based on data indicating a type of the plant, a desired size of the plant, and a growth stage of the plant, and
wherein the operation is varied such that the first light emitting device emits the first type of light in a first different condition that is selected to increase the content of the phytochemical in the plant without encouraging additional plant growth, and the second light emitting device emits the second type of light in a second different condition that is selected to increase the content of the phytochemical in the plant and encourage additional plant growth.