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US 11,716,938 B2Granted
Plant cultivation light source and plant cultivation device
AssigneeSeoul Viosys Co., Ltd.
InventorHyun Su Song
Life of this patent
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Abstract
Disclosed herein are a plant cultivation light source and a plant cultivation apparatus. The plant cultivation light source includes a main light source and an auxiliary light source. The main light source emits light having at least two peak wavelengths. The at least two peak wavelengths fall within a wavelength region absorbed by chlorophyll.
Claims20
A plant cultivation apparatus comprising:
- a housing having a nutrient medium space for supplying a nutrient medium to an emerged seedling of a plant, wherein the emerged seedling of the plant comprises:
- a seedling satisfying at least one of a first condition that the seedling is aged less than a predetermined time, or a second condition that a weight of the seedling is less than or equal to a predetermined weight;
- a cultivation unit disposed above the nutrient medium space and comprising a cultivation plate on which the seedling is cultivated;
- and
- a light source unit disposed above the cultivation plate to illuminate the seedling,
- wherein the light source unit r comprises a main light source and an auxiliary light source, the main light source emitting light having at least two peak wavelengths absorbable by chlorophyll, and
- wherein the main light source and the auxiliary light source emit light during a light period and do not emit light during a dark period, the light period being set to 16 hours per day and the dark period being set to 8 hours per day, and
- wherein the auxiliary light source is configured to emit white light.
5 more elements
A plant cultivation light source comprising:
- a main light source and an auxiliary light source,
- wherein the main light source emits light having at least two peak wavelengths including a first peak wavelength and a second peak wavelength greater than the first peak wavelength, the at least two peak wavelengths falling within a wavelength region absorbable by chlorophyll, and
- the main light source is operable to emit light having first color and second color having a predetermined irradiance ratio;
- wherein the light emitted from the main light source and the auxiliary light source increases content of a phytochemical in a plant, and the phytochemical is ginsenoside;
- and
- wherein light intensity at the first peak wavelength and light intensity at the second peak wavelength are higher than light intensity at wavelengths that are greater than the first peak wavelength and smaller than the second peak wavelength, and
- wherein the light intensity of the first peak wavelength is same as the light intensity of the second peak wavelength.
4 more elements
A plant cultivation light source comprising:
- a main light source and an auxiliary light source,
- wherein the main light source emits light having at least two peak wavelengths including a first peak wavelength and a second peak wavelength greater than the first peak wavelength, the at least two peak wavelengths falling within a wavelength region absorbable by chlorophyll, and
- the main light source is operable to emit light having first color and second color having a predetermined irradiance ratio;
- wherein the light emitted from the main light source and the auxiliary light source increases content of a phytochemical in a plant;
- and
- wherein light intensity at the first peak wavelength and light intensity at the second peak wavelength are higher than light intensity at wavelengths that are greater than the first peak wavelength and smaller than the second peak wavelength, wherein the main light source and the auxiliary light source emit light during a light period and do not emit light during a dark period, the light period being set to 16 hours per day and the dark period being set to 8 hours per day, and
- wherein the auxiliary light source emits white light.
4 more elements
Dependencies are inferred from the claim text.