JP3778683B2 - Light source for plant growth - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a light source for plant growth as artificial light used for plant breeding, seedling growth, tissue culture, algae culture and the like for the purpose of research and development.
[0002]
[Prior art]
Artificial light for plant growth light sources includes fluorescent lamps and plant growth lamps, both of which are multi-wavelength light. In recent years, some light emitting diodes have been used, but a plurality of light emitting diodes of the same wavelength or a plurality of light emitting diodes having two or more different wavelengths are mounted on one large flat printed circuit board. The light source was a so-called planar light source attached in multiple rows.
[0003]
[Problems to be solved by the invention]
However, in the above-described light source, since the conditions of the light source are fixed, it is impossible to dimming the necessary wavelength light selectively to the experiment target or the plant to be grown. Moreover, the range of light irradiation could not be changed. Furthermore, light emitting diodes are a large unit as a planar light source, so it is difficult to repair when some of them are not lit, and the purchase unit of the user is not flexible, so it is necessary. It is not possible to purchase more light sources or to change the light source.
[0004]
Therefore, the present invention is capable of selectively dimming the necessary wavelength light, changing the range of the light irradiation, repairing is easy, and it is easy to purchase and recombine light sources as needed. The purpose is to provide a light source.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, according to the means of claim 1, the light source for plant growth according to the present invention is provided with a plurality of light emitting diodes of the same wavelength mounted in a row on an elongated printed board and provided with a power connection connector. A plurality of connector holders having a plurality of connection portions of the power supply connector are installed on a frame body in which a plurality of rows of light sources can be attached and detached, and illuminance control is enabled for each connector receiver, and the frame body has different wavelengths. A combination of light sources is attached, and each power connection connector of the same wavelength light source is connected to one connector receptacle . According to a second aspect of the present invention, a plurality of light emitting diodes having the same wavelength are mounted in a row on an elongated printed circuit board, and a light source provided with a power connection connector is attached to a frame that can be attached and detached in a plurality of rows. A connector receiver having a plurality of connecting portions is installed, and each power connection connector is connected to the connecting portion of the connector receiver, and the means of claim 3 emits light of the same wavelength on an elongated printed board. implements diode into a plurality a row, the light source provided with a power connector in a plurality of rows detachable frame, we established a connector receiving with a plurality of connection portions of the connector for the power connection, said frame A light source of a different wavelength is attached to the body in combination, and each power connection connector is connected to the connection portion of the connector receiver.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail based on the embodiments shown in the drawings. The plant growing light source 1 is detachably attached to the frame body 2 by appropriately combining a plurality of light sources 3 having different wavelengths for each row, thereby enabling illuminance control for each light source 3 having the same wavelength.
[0007]
The light source 3 has a plurality of light emitting diodes 5 of the same wavelength mounted in a row on an elongated printed circuit board 4, moisture-proofing is applied to the front and back surfaces, power supply connectors 6 are provided, and frame bodies 2 are provided at both ends of the printed circuit board 4. The one provided with the attachment 7 is a unit.
[0008]
Examples of the light source 3 include a red light source 3a having a wavelength of 650 to 680 nm that is effective for promoting photosynthesis, a blue light source 3b having a wavelength of 400 to 480 nm that is effective for morphogenesis of plants, germination, rooting, stem growth, and flower bud formation. A far-red light source 3c with a wavelength of 700 to 750 nm involved is used.
[0009]
The frame 2 has a plurality of insertion holes 8 through which the light-emitting diodes 5 protrude from the lower surface, a plurality of rows, and mounting holes 10 for S-shaped hooks 9 for suspension at the four corners. A plurality of receptacles 11 are installed.
[0010]
In this embodiment, four connector receivers 11 are provided. Each connector receiver 11a, 11b, 11c, 11d includes a plurality of connection portions of the power supply connector 4, and each connector receiver 11a, 11b, 11c. Illumination control is possible every 11d.
[0011]
The illuminance control is performed by adjusting a voltage by connecting to a separate power source for each connector receiver 11a, 11b, 11c, 11d, or a voltage adjusting device (not shown) for each connector receiver 11a, 11b, 11c, 11d. Connect to the power supply via
[0012]
The plant growing light source 1 configured in this way can constitute a light emitting surface of a desired size by attaching the light sources 3 of different wavelengths to the frame 2 in a desired arrangement in a desired combination, The range of light irradiation can be changed. In addition, since the illuminance can be controlled for each light source 3 having the same wavelength, light having a necessary wavelength can be selectively dimmed, and a light environment under conditions desirable as mixed light can be set.
[0013]
Furthermore, since the moisture-proof treatment is applied to the front and back of the light source 3, pattern corrosion of the printed circuit board 4 and failure of the light-emitting diode 5 can be prevented even in a high-humidity environment for plant growth. Further, even when some of the light emitting diodes 5 are not lit, since one unit of the light source 3 can be attached to and detached from the frame body 2 in a row, it can be easily repaired or replaced. Moreover, it is easy to increase the number of light sources 3 and recombine them as necessary. Furthermore, since the S-shaped hooks 8 for suspension can be attached to the four corners of the frame 2, it is possible to easily attach the plant growing light source 1 to equipment such as the culture shelf 12, environmental test machine, plant growing growth chamber and the like. it can.
[0014]
【The invention's effect】
As described above, the light source for plant growth according to the present invention is the light source provided with a power connection connector by mounting a plurality of light emitting diodes of the same wavelength in a row on an elongated printed board. A plurality of connector holders having a plurality of connection portions of the power connection connectors are installed in a detachable frame body, and illuminance control is enabled for each connector receiver, and light sources of different wavelengths are provided on the frame body. Since each power supply connector of the same wavelength light source is connected to one connector receptacle, light sources of different sizes can be emitted by attaching the light sources of different wavelengths to the frame in the desired arrangement. A surface can be formed, and the range of light irradiation can be changed. In addition, since the illuminance can be controlled for each light source having the same wavelength, light having a necessary wavelength can be selectively dimmed, and an optical environment having desirable conditions as mixed light can be set .
[0015]
Further, according to the first, second, and third means, even when some of the light emitting diodes are not lit, one unit of the light source can be attached to and detached from the frame body in a row, so that repair and replacement can be easily performed. Moreover, it is easy to purchase or recombine light sources as necessary. According to the third aspect of the present invention, a light emitting surface of a desired size can be formed by attaching light sources having different wavelengths to a frame body in a desired arrangement in a desired combination, and the light irradiation range can be changed. It is.
[Brief description of the drawings]
FIG. 1 is a perspective view of a light source for plant growth showing an embodiment of the present invention.
FIG. 2 is a front view of a light source.
FIG. 3 is a schematic diagram of a light source for plant growth.
FIG. 4 is a front view of a culture shelf to which a plant growing light source is attached.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Light source for plant growth, 2 ... Frame body, 3 ... Light source, 4 ... Printed circuit board, 5 ... Light emitting diode, 6 ... Connector for power supply connection, 11 ... Connector receptacle

Claims (3)

A plurality of light emitting diodes of the same wavelength are mounted in a row on an elongated printed circuit board, and a light source provided with a power connection connector is attached to a plurality of rows of detachable frames, and a plurality of connection portions of the power connection connectors are provided. A plurality of connector receptacles were installed, the illuminance control was possible for each connector receptacle, light sources with different wavelengths were attached to the frame body, and each power connection connector of the same wavelength light source was connected to one connector receptacle. Light source for plant growth characterized by A plurality of light emitting diodes of the same wavelength are mounted in a row on an elongated printed circuit board, and a light source provided with a power connection connector is attached to a plurality of rows of detachable frames, and a plurality of connection portions of the power connection connectors are provided. A plant-growing light source characterized in that a connector receptacle is installed and each power connection connector is connected to a connection portion of the connector receptacle . A plurality of light emitting diodes of the same wavelength are mounted in a row on an elongated printed circuit board, and a light source provided with a power connection connector is attached to a plurality of rows of detachable frames, and a plurality of connection portions of the power connection connectors are provided. A plant-growing light source comprising a connector receiver, a light source having a different wavelength attached to the frame body, and each power connection connector connected to a connection portion of the connector receiver.

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