LED lighting module for plant factory and LED lighting device for plant factory having same mounted thereon
First Claim
1. An LED lighting module for being used in an LED lighting apparatus for plant factories, comprising:
- a blue-chip light-source for generating blue-series light under external power supply; and
mixing phosphor, which being blending of red-series and yellow-series RY-phosphor, for being applied onto the blue-chip light-source, whereby the light intensity out of the blue-chip light-source shows a first local maximum in a 430 nm-470 nm wavelength band and a second local maximum in a 550 nm-730 nm wavelength band, wherein both of minimum light intensities in the 430 nm-470 nm wavelength band and the 550 nm-730 nm wavelength band maintain higher than maximum light intensity in a 490 nm-530 nm wavelength band.
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Accused Products
Abstract
The present invention relates to technology to implement a technique of managing light intensity by each wavelength band for a light apparatus at a low price, whereby the light intensity is suitable for plant growth. In the present invention, cheaper LED blue-chips are incorporated instead of more expensive LED red-chips which are conventionally incorporated in plant factories, which let the production cost of lighting apparatus for plant factories reduced. By applying red-series, green-series and yellow-series phosphors onto the LED blue-chips, light intensity by wavelength band of lighting apparatuses may meet target conditions which are favorable to plant growth. Further, work environment may be improved by reducing eyestrain due to red light-source, and growth efficiency of plants may be enhanced by improving wavelength characteristics of lighting apparatuses.
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Citations
4 Claims
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1. An LED lighting module for being used in an LED lighting apparatus for plant factories, comprising:
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a blue-chip light-source for generating blue-series light under external power supply; and mixing phosphor, which being blending of red-series and yellow-series RY-phosphor, for being applied onto the blue-chip light-source, whereby the light intensity out of the blue-chip light-source shows a first local maximum in a 430 nm-470 nm wavelength band and a second local maximum in a 550 nm-730 nm wavelength band, wherein both of minimum light intensities in the 430 nm-470 nm wavelength band and the 550 nm-730 nm wavelength band maintain higher than maximum light intensity in a 490 nm-530 nm wavelength band. - View Dependent Claims (2, 3, 4)
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Specification