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US 2024/0180085 A1Published application
Light source for plant cultivation
AssigneeSeoul Viosys Co., Ltd.
InventorsSe Ryung KIM, Sang Min KO, Jin Won KIM, Hyun Su SONG
Life of this patent
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Abstract
A light source includes a controller configured to turn on or off a plurality of light sources depending on a light period. The controller can be configured to turn on the light sources during each of a plurality of light periods such that the light sources emit a light having a spectrum with a plurality of peaks toward the plant. At least one light period can include a first period and a second period and the first period preceding or following the second period. The controller can adjust the spectrum of the light between the first period and the second period and/or during different light periods.
Claims20
A light device, comprising:
- a light source module configured to emit light, the light source module including:
- a controller operable to turn on the light source module;
- 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,
- wherein the controller is configured to operate at least one of the first, second, or third 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 is configured to operate at least one of the first, second, or third 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 is configured to independently control an emission intensity or an emission time of light emitted from at least one of the first, second, or third light emitters.
8 more elements
A light device, comprising:
- a first light emitter having a first energy band gap of a first active layer;
- a second light emitter having a second energy band gap of a second active layer;
- a third light emitter having a third energy band gap of a third active layer;
- and
- a controller operable to turn on one or more of the first, second, or third light emitters during each of a plurality of light periods,
- wherein the first energy band gap has longer peak wavelength than the second energy band gap,
- wherein the first energy band gap has longer peak wavelength than the third energy band gap,
- wherein the plurality of light periods comprises a first light period and a second light period, and
- wherein the controller is configured to independently control an emission intensity or an emission time of light emitted from at least one of the first, second, or third light emitters.
6 more elements
A lighting apparatus comprising:
- a housing having an inner space;
- a light source disposed on the inner space and configured to emit light;
- and
- a controller configured to turn on one or more emitters in the light source during a light period,
- wherein the one or more emitters includes:
- 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 to the second peak wavelength,
- wherein the controller is configured to operate the light source to provide light having a first spectral pattern,
- wherein the first spectral pattern includes the first peak wavelength having a relatively high intensity and the third peak wavelength having a lower intensity than the first peak wavelength, and
- wherein the controller is configured to independently turn off at least one of the first, second, or third light emitters during the light period.
8 more elements
Dependencies are inferred from the claim text.