LED lighting module for plant factory and LED lighting device for plant factory having same mounted thereon
First Claim
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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
RGY-phosphor, which being blending of yellow-series phosphor, green-series phosphor and red-series 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 625 nm-700 nm wavelength band and a second local maximum in 430 nm-470 nm wavelength band and maintains higher in 550 nm-660 nm wavelength band than the second local maximum, wherein the first local maximum is the largest intensity value and wherein the second local maximum is smaller than the first local maximum.
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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
16 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 RGY-phosphor, which being blending of yellow-series phosphor, green-series phosphor and red-series 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 625 nm-700 nm wavelength band and a second local maximum in 430 nm-470 nm wavelength band and maintains higher in 550 nm-660 nm wavelength band than the second local maximum, wherein the first local maximum is the largest intensity value and wherein the second local maximum is smaller than the first local maximum. - View Dependent Claims (5, 6, 7)
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2. 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 including red-series R-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 430 nm-470 nm wavelength band and a second local maximum in 600 nm-730 nm wavelength band, wherein both of minimum light intensities in 430 nm-470 nm and 600 nm-730 nm wavelength bands maintain higher than maximum light intensity in 490 nm-560 nm wavelength band. - View Dependent Claims (8, 9, 10)
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3. 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 green-series RG-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 430 nm-470 nm wavelength band, a second local maximum in 600 nm-730 nm wavelength band, and a third local maximum in 490 nm-560 nm wavelength band, wherein the third local maximum is smaller than both of the first and the second local maximums. - View Dependent Claims (11, 12, 13)
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4. 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 430 nm-470 nm wavelength band and a second local maximum in 550 nm-730 nm wavelength band, wherein both of minimum light intensities in 430 nm-470 nm and 550 nm-730 nm wavelength bands maintain higher than maximum light intensity in 490 nm-530 nm wavelength band. - View Dependent Claims (14, 15, 16)
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Specification
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Current AssigneeFuture Light Co., Ltd.
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Original AssigneeFuturegreen Agricultural Co. Ltd.
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InventorsCHO, Sung-Bin
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current1/1
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CPC Class CodesA01G 7/045 with electric lightingF21K 9/64 using wavelength conversion...F21V 19/0035 the fastening means being c...F21Y 2103/10 comprising a linear array o...F21Y 2115/10 Light-emitting diodes [LED]Y02P 60/14 Measures for saving energy,...
