Plant growth lighting device and method
First Claim
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1. A system for plant growth comprising:
- a first LED device configured to emit light of a first color, wherein the first LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees and at least 50% of the light emitted by the first LED device is in the controlled beam half angle of the first LED device; and
a second LED device configured to emit light of a second color, wherein the second LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees; and
wherein the system is configured to generate an emission spectrum having a first emission peak below 600 nm and a second emission peak above 600 nm.
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Abstract
Embodiments described herein provide systems and methods for promoting plant growth that combine beam angle control with spectral control. In one embodiment, an optical device can be configured to emit multiple colors of light at particular wavelengths. The optical device may also be configured to generate an emission spectrum with multiple peaks. The spectrum can be selected based on stimulating biological processes of a plant.
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Citations
19 Claims
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1. A system for plant growth comprising:
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a first LED device configured to emit light of a first color, wherein the first LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees and at least 50% of the light emitted by the first LED device is in the controlled beam half angle of the first LED device; and a second LED device configured to emit light of a second color, wherein the second LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees; and wherein the system is configured to generate an emission spectrum having a first emission peak below 600 nm and a second emission peak above 600 nm. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of illuminating plants comprising:
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providing a first LED device configured to emit light of a first color, wherein the first LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees and at least 50% of the light emitted by the first LED device is in the controlled beam half angle of the first LED device; and providing a second LED device configured to emit light of a second color, wherein the second LED device is configured to emit light with a controlled beam half angle of less than or equal to 60 degrees; and illuminating plants using the system to generate an emission spectrum having a first emission peak below 600 nm and a second emission peak above 600 nm. - View Dependent Claims (8, 9, 18, 19)
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10. A system for plant growth comprising:
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a light bar defining a light source holding area; one or more packaged LEDs arranged in the light source holding area, wherein the set of packaged light sources include a packaged LED configured to emit light of a first color, wherein the packaged LED is configured to emit light of the first color with a controlled beam half angle of less than or equal to 60 degrees and at least 50% of the light of the first color emitted by the packaged LED is in the controlled beam half angle of the packaged LED, and configured to emit light of a second color with a controlled beam half angle of less than or equal to 60 degrees, and wherein the packaged LED is configured to generate an emission spectrum having a first emission peak below 600 nm and a second emission peak above 600 nm. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification