KR101593584B1 - LED Light Apparatus For Rooting Grafted Seedlings - Google Patents

Abstract

The present invention relates to an LED lighting apparatus for rooting grafted seedlings, which includes: a shelf for accommodating a raising seeding tray; and a light source for irradiating a light toward the raising seeding tray accommodated in the shelf. The light source forms a mixed light by assembling a first LED light source irradiating a red light and a second LED source irradiating a white light. Photosynthetic photon flux densities (PPFD) of the first LED light source and the second LED light source have assembly ratios of 1.5~3.6 : 1. The LED lighting apparatus further includes a controller for controlling the photosynthetic photon flux density (PPFD) of the light source. The controller controls the photosynthetic photon flux densities (PPFD) of the first LED light source and the second LED light source, and the LED lighting apparatus uses a white light source as a light source.

Description

{LED Light Apparatus For Rooting Grafted Seedlings}

[0001] The present invention relates to a glued-light activating LED lighting device using an LED light source, and more particularly, to a glued-leaflider lighting device including a red LED, a white LED, and a combination thereof in order to efficiently operate a grafted seedlings.

The demand for vegetable seedlings increases with the increase in the area of horticultural facilities. Among them, demand for grafted seedlings with grafting and hardening is increasing steadily.

Especially, because of preference for good quality and uniform seedlings, seedlings production gradually changes from the way that individual farmers planted seedlings to the method of planting seedlings in specialized nurseries with facilities and technologies.

In order to produce uniform grafted seedlings, grafting and fusing technologies are required along with production of high-quality grafts and trees. In the case of excavation, most of the processes are produced in tunnels in which natural light is blocked in nurseries. Therefore, it is difficult to produce high quality grafted seedlings because the environmental management is difficult and the growth and morphogenesis of the seedlings depends on the external climate.

It is difficult to precisely control the temperature, humidity, and light intensity of the grafted seedlings during the summer when the temperature is high.

To solve these problems, we need an artificial light source to replace natural light, heat insulation, improvement of heating and cooling system, conversion from planar seedlings to stereotypical seedlings, and glued light fixtures capable of precisely controlling temperature, humidity and light quantity Do.

However, in the existing technologies related to the graft-seedling activating apparatus, specific data on the LED wavelength and the grafting rate of the grafted seedlings can not be presented, and specific data on the LED light intensity (PPFD, photosynthetic photon flux density) and graft survival rate have not been found .

Patent Document 001 Korean Patent No. 10-1040580 Patent Document 002 Korean Patent Laid-Open No. 10-2007-0118473 [Patent Document 003] Korean Utility Model Publication No. 20-2009-0000889 Patent document 004 Korean Registered Utility Model No. 20-0404190 Patent Document 005 Korean Registered Utility Model No. 20-0436615 Patent Document 006 Korean Registered Utility Model No. 20-0407016 Patent Literature 007: Japanese Patent Application Laid-Open No. 2010-136625 Patent Document 008: JP-A-2013-099254

A Study on the Improvement of Quality of Major Vegetables and Fruit Crops Using LEDs (National Institute of Horticultural Science, Rural Development Administration)

The present invention for solving the above-mentioned problems is to provide a grafted LED lighting device capable of effectively controlling the grafting of grafted seedlings and controlling the wavelength and light amount of the artificial light source more systematically, thereby realizing the survival rate of grafted seedlings and the healthy development of grafted seedlings The purpose is to provide.

In order to solve the above-described problem, the present invention provides a grafted-seedlingslide illumination device comprising a shelf for accommodating a grapevine tray on which grafted seedlings are mounted, and a light source for irradiating light toward a seedlings tray accommodated in the shelf, And a first LED light source to which red light is irradiated and a second LED light source to which white light is irradiated are combined to form mixed light, wherein a photosynthetic photon flux density (PPFD) of the first LED light source and the second LED light source is 1.5 Further comprising a controller for controlling the photosynthetic photon flux density (PPFD) of the light source, the photosynthetic photon flux density (PPFD) of the first LED light source being 12 to 18 mu m / s and the photosynthetic photon flux density (PPFD) of the second LED light source is controlled to 5 to 8 mu mol / m < 2 > to control the photosynthetic photon flux density PPFD) is 17 ~ 26 μmol / ㎡ s.

The first LED light source is red light irradiated in a wavelength band range of 640 to 670 nm and the second LED light source is a white light irradiated by applying a yellow phosphor to a blue chip having a wavelength band range of 430 to 460 nm, There is one feature on the device.

And a light source for irradiating light toward a seedling tray accommodated in the shelf, wherein the light source includes a first LED light source for emitting red light and a white light source for emitting red light, The first LED light source and the second LED light source are combined to form mixed light, and the photosynthetic photon flux density (PPFD) of the first LED light source and the second LED light source is in a combination ratio of 8/13 to 12/9: 1 Further comprising a controller for controlling the photosynthetic photon flux density (PPFD) of the light source, wherein the controller controls the photosynthetic photon flux density (PPFD) of the first LED light source to 8 to 12 占 퐉 mol / , The photosynthetic photometric material density (PPFD) of the second LED light source is controlled to 9 to 13 mu mol / m < 2 > and the photosynthetic photometric density (PPFD) of the mixed light formed by combining the light sources is adjusted to 17 to 25 mu mol / s grape seedlings There is another aspect to the lighting device.

The first LED light source is red light irradiated in a wavelength band range of 640 to 670 nm and the second LED light source is a white light irradiated by applying a yellow phosphor to a blue chip having a wavelength band range of 430 to 460 nm, There are other day features on the device.

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As described above, the grafted seedling LED lighting apparatus according to the present invention can cultivate the seedlings with only the red and white light sources. Therefore, the grafting rate and the growth The uniformity can be improved and healthy seedlings can be produced.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a glued-seedlings activated light illumination device according to the present invention; Fig.
Fig. 2 is a front view of the glued-seedlings activated light illumination device according to the present invention. Fig.
Fig. 3 is a side view of the gypsum-activating LED lighting device according to the present invention. Fig.
4 is a bottom view showing a light source arrangement using an LED light source according to the present invention.
FIG. 5 is a graph showing the photosynthetic photon flux density according to the LED light source arrangement of FIG. 4;
6 is a graph showing a photoreaction absorption spectrum of a plant.
7 is a graph showing the emission spectra of blue and red LEDs.
8 is a graph showing the emission spectrum of a white LED.
9 is a graph showing the emission spectra of white LED and red LED.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, reference numerals are added to the constituent elements of the drawings, and the same numerals are assigned to the same constituent elements even if they are shown in different drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. do.

The gypsum-derived activated-light illumination device of the present invention is a gypsum-derived activated-light illumination device of the present invention, which is disclosed in Japanese Patent Application No. 10-1397193 filed and filed by the applicant of the present invention (date of registration, 2014, 05, 13) and 10-1483523 In order to secure the rights of a white LED light source in an LED light source disclosed through a grafted seedlings using an LED light source of a white color LED light source, And there is a significant effect on the grafting of grafts.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The ginkgoace-activating LED lighting apparatus according to the present invention includes a shelf for accommodating a seedling tray on which grafted seedlings are mounted, and a light source for irradiating light directed toward a seedling tray accommodated in the shelf, wherein the light source is a light source having a wavelength band of 640 to 670 nm A plurality of first LED light sources for emitting light and a plurality of second LED light sources for emitting white light are mutually combined to form mixed light, and the first LED light source and the second LED light source have a combination ratio of 1.5 to 3.6: 1 .

In addition, in the graft-seedlings activating LED lighting apparatus according to the present invention, the light source 200 is configured to irradiate light toward the seedling trail T housed in the shelf 100, and in one embodiment, The first LED light source 210 and the second LED light source 220 may be mutually combined to form mixed light so as to activate activation.

In other words, a plant absorbs carbon dioxide from the air and is associated with water to assimilate carbohydrates. This action is endothermic, and plants use solar energy for this reaction. Chlorophyll Chlorophyll is an effective means of converting light energy. There are two kinds of substances in chlorophyll, chlorophyll a and chlorophyll b. The maximum absorption wavelength of chlorophyll a is 430 nm and 662 nm, and the maximum absorption wavelength of chlorophyll a is 453 nm and 642 nm.

Accordingly, in an embodiment of the present invention, the first LED light source 210 is configured to emit light in a wavelength band of 640 to 670 nm as red light, and the second LED light source 220 is configured to emit white light. The white light is implemented by a method in which the yellow phosphor is applied to the blue chip in the 430 to 460 nm wavelength band.

Also, the energy efficiency of light for plant growth can be improved by balancing the emission ratios of the red light, such as the first LED light source 210, and the white light, such as the second LED light source 220.

The red light such as the first LED light source 210 promotes plant growth, whereas the blue chip configured to emit white light from the second LED light source 220 mainly promotes the generation of buds Stalks the stem firmly to make the leaves.

As such, it is important to control the emission amount of the blue chip. For example, if the blue light is too small, the plant may be laid-off, and if the blue light is too much, the growth may be slowed.

Therefore, in one embodiment of the present invention, the photonics photon flux density (PPFD) of the first LED light source 210 and the second LED light source 220 is set to a combination ratio of 1.5 to 3.6: 1.

In another embodiment of the present invention, the photosynthetic photon flux density (PPFD) of the first LED light source 210 and the second LED light source 220 may be a combination ratio of 0.6 to 1.4: 1.

In addition, in another embodiment of the present invention, the first and second LED light sources may be combined with each other to form mixed light, and the second LED light source alone may be used. In this case, .

In addition, in the embodiment of the present invention, the light sources 200 are arranged in two rows in the width direction along the longitudinal direction on the lower surface of the tray support 110, Is positioned at a distance (x) of 0.15 to 0.25 times the width width (L) of the tray base from one end and the other end in the width direction of the pedestal (110).

That is, the growth uniformity of the plant according to the illuminance distribution on the seedling tray (T) surface due to the arrangement of the light sources 200 is determined by the width width L of the tray support 110, (X) of the light source 200 from the one end in the width direction of the light source 200. When the value of x / L is 0.15 to 0.25, it is confirmed that the plant growth rate has an optimum value there was.

As a result of experiments, it was found that the correlation between the photosynthetic photon flux density PPFD of the mixed light formed by combining the light source 200 and the arrangement and arrangement of the light sources 200 in the tray pedestal 110 4 and 5 illustrate two rows of the light sources 200 in the widthwise direction along the longitudinal direction of the lower surface of the tray pedestal 100. The arrangement of the two rows of the light sources 200, Shows the range of photosynthetic photon flux density (PPFD) according to the width of the associated tray pedestal 110.

Of course, it is also possible to arrange three rows of the light sources 200 in the widthwise direction along the lengthwise direction of the lower surface of the tray support 110, and furthermore, to arrange more columns, Reference is made to Patent No. 10-1397193 (filed on Apr. 2014, May, 13).

The controller 300 controls the photosynthetic photon flux density PPFD of the light source 200. In one embodiment of the present invention, the photosynthetic photon flux density PPFD of the first LED light source 210 is 12 And the second LED light source 220 is controlled to have a photosynthetic photon flux density (PPFD) of 5 to 8 mu mol / m < 2 >, and the photosensitivity of the mixed light formed by combining the light sources The photometric density (PPFD) can be configured to be controlled at 17 to 26 mu mol / m < 2 >

In another embodiment of the present invention, the photosynthetic photon flux density (PPFD) of the first LED light source 210 is controlled to be 8 to 12 mu mol / m < 2 > and the photosynthetic photon flux density The density (PPFD) is controlled to 9 ~ 13 mu mol / m < 2 >, and the photosynthetic photometric material density (PPFD) of the mixed light formed by combining the light sources is controlled to 17-25 mu mol / m < 2 &

In yet another embodiment of the present invention, the photosynthetic photon flux density (PPFD) in which the second LED light source is formed alone is controlled to 10 to 20 mu mol / m < 2 >

Meanwhile, in one embodiment, another embodiment, and another embodiment of the present invention, the light emitted from the first LED light source 210 is red light, is in the range of 640 to 670 nm wavelength band, The light emitted from the LED light source 220 is white light, and the second LED light source 220 emits white light because the yellow phosphor is coated on the blue chip in the range of 430 to 460 nm.

7 to 9, the white light in the LED light source is effective for the photosynthesis of the plant in the embodiments of the present invention, other embodiments, and other embodiments of the present invention.

As shown in FIG. 6, at least two useful peaks in blue and red are present in the photoreactive absorption spectrum of plants. Light in the wavelength band of 630 to 660 nm in red and light in the wavelength band of 430 to 460 nm in blue is used for photosynthesis . In particular, when a LED light source is used for photosynthesis of plants, a red LED light source that emits light in a wavelength band of 630 to 660 nm and a blue LED light source that emits light in a 430 to 460 nm wavelength band are formed in combination.

At this time, the full width at half maximum (FWHM) of the emission spectrum of the blue LED and the red LED used as the mixed light has an emission width in a narrow region centering on the peak wavelength within about 25 nm as shown in FIG. 7 .

Accordingly, the white LED is manufactured by coating a yellow phosphor mixed with silicon on a blue chip. As shown in FIG. 8, the blue LED includes a broad region of the visible light and a blue peak, When light is formed, the two regions of the peak as shown in Fig. 9 are effective for photosynthesis of plants and are inevitably advantageous.

On the other hand, in the case of using mixed light in which the above-described LED light sources are combined, the state of excitation and the rate of survival of branches and branches as seedling species were determined using the ratio of photosynthetic photon flux density (PPFD) , The present invention is assumed to be an experimental group, and Table 2, which is compared with the following Table 1, will be described in detail assuming that the control group is compared with the experimental group of the present invention.

Light source
Types of seedlings Branches Park and An active state Allowance rate An active state Allowance rate R: W = 1.5 to 3.6: 1 Leaf dark green,
Stem / leaf / root development good 99% Leaf dark green,
Stem / leaf / root development good 98% R: W = 0.6 to 1.4: 1 Leaf dark green,
Stem / leaf / root development is good 96% Leaf dark green,
Stem / leaf / root development is good 94% W Leaves light green,
Stem / leaf / root development is good 92% Leaf light green
Stem / leaf / root development is good 91%

Wavelength condition Graft stalks Relative comparison
(Priority) R1: B = 2: 1
R1: B: W = 2: 1: 1 Leaf dark green, stem / leaf / root development Good One R1: W = 1: 2 Leaf dark green, stem / leaf / horn development generally good 2 R1: R2 = 3: 1 Leaf light green, poor growth 5 B Leaves are gentle green, stem development middle,
Early development of rind on the back of the leaf, low root development 4 R1 Leafy green, stem / leaf middle, good root development 3 G Leaf pale green, dysentery, leaf edge burning 6 R2 Leaf overall rash, overall development defective 7 * R 1 = 660 nm, R 2 = 730 nm, B = 450 nm, G = 500 nm Light source in the wavelength band

Comparing Table 1 and Table 2, it can be seen that the combination of the red light source and the white light source, the combination ratio of the red light source and the white light source, and the white light source W shown in Table 1, Leaf color and stem / leaf / root development status, such as the appearance of grafting through the red light source, the blue light source and the white light source (R1: B: W1 order) It can be seen that similar effects are exhibited.

That is, the combination of the blue light sources disclosed in Table 2 need not be required any more, and only the combination of the red and white light sources disclosed in Table 1 and the combination ratio thereof, It is possible to effectively maintain the grafting condition such as the ranking.

Therefore, it is possible not only to grow seedlings with only the red and white light sources disclosed in the present invention, but also to improve the graft survival rate and growth uniformity of the plants without being influenced by the external environment such as high temperature and seasons, .

T: Seedling tray
100: shelf 110: tray base
120: support base 130: moving wheel
200: Light source
210: first LED light source 220: second LED light source
300: controller

Claims (3)

There is provided a grafted seedlings LED lighting device comprising a shelf for accommodating a seedling tray on which grafted seedlings are mounted, and a light source for irradiating light toward a seedling tray accommodated in the shelf,
Wherein the first light source for emitting red light and the second light source for emitting white light are combined to form mixed light,
Wherein the photosynthetic photon flux density (PPFD) of the first LED light source and the second LED light source is in a combination ratio of 1.5 to 3.6: 1,
Further comprising a controller for controlling the photosynthetic photon flux density (PPFD) of the light source,
Wherein the controller controls the photosynthetic photon flux density (PPFD) of the first LED light source to be 12 to 18 mu mol / m2s and the photosynthetic photon flux density (PPFD) of the second LED light source to 5 to 8 mu mol / M 2 s, the photosynthetic photon flux density (PPFD) of the mixed light formed by combining the first and second LED light sources is controlled to 17 to 26 μmol / m 2 s,
Wherein the first LED light source is a red light irradiated in a wavelength band of 640 to 670 nm and the second LED light source is a white light irradiated by applying a yellow phosphor to a blue chip having a wavelength band range of 430 to 460 nm Gypsum cultivated LED lighting device. There is provided a grafted seedlings LED lighting device comprising a shelf for accommodating a seedling tray on which grafted seedlings are mounted, and a light source for irradiating light toward a seedling tray accommodated in the shelf,
Wherein the first light source for emitting red light and the second light source for emitting white light are combined to form mixed light,
Wherein the photosynthetic photon flux density (PPFD) of the first LED light source and the second LED light source is in a combination ratio of 8/13 to 12/9: 1,
Further comprising a controller for controlling the photosynthetic photon flux density (PPFD) of the light source,
Wherein the controller controls the photosynthetic photon flux density (PPFD) of the first LED light source to 8 to 12 mu mol / m2s and the photosynthetic photon flux density (PPFD) of the second LED light source to 9 to 13 mu mol / M 2 s, and the photosynthetic photon flux density (PPFD) of the mixed light formed by combining the first and second LED light sources is controlled to 17 to 25 μmol / m 2 s,
Wherein the first LED light source is a red light irradiated in a wavelength band of 640 to 670 nm and the second LED light source is a white light irradiated by applying a yellow phosphor to a blue chip having a wavelength band range of 430 to 460 nm Gypsum cultivated LED lighting device. delete

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