JPS6379535A - Light culture tank - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a plant cultivation tank, and particularly to a photocultivation tank that can effectively cultivate plants by supplying sufficient nutrients and light necessary for photosynthesis to the plants. Regarding tanks.

FIG. 1 is a perspective view for explaining one embodiment of a photocultivation tank according to the present invention. In the figure, 10 indicates a darkroom section in which the roots of plants are accommodated, and the darkroom section 10 includes, for example, Water and a medium having sufficient nutrients for plant growth are supplied in a well-known manner.

In Fig. 1, the lid is shown removed, but
The darkroom section 10 is actually closed by a lid (not shown) so that no light can enter into the darkroom section 10 . A base 11 is disposed in the darkroom section 10 as shown in the figure, and columnar bodies 20 are erected in holes provided in the base 11. This columnar body 20 is fixed in places by supporting bodies 21 to constitute a support body that supports the stems and leaves of the plant p, and the upper part is fixed by, for example, a cover body 22 made of an opaque body, as shown in FIG. , and is occluded. As shown in the third @, the columnar body 2o is composed of a transparent hollow body, and a transparent columnar body 23 having a triangular cross section is inserted inside the columnar body 2o. An optical fiber 41 is inserted in contact with the optical fiber 41, and light transmitted through the optical conductor cable 40 is introduced into the optical fiber 41. A solar light concentrating device or an artificial light concentrating device is provided at an end (not shown) of the light conductor cable 40, and the light focused by these is selectively or simultaneously introduced into the light conductor cable 40, and the light is The light introduced into the conductor cable is introduced into the optical fiber 41, and is emitted from the optical fiber 41 to irradiate the plant P. At that time, optical fiber 4
1, a light diffusing substance is attached to the surface of the optical fiber as variously proposed by the present applicant, and the light propagated within the optical fiber through the light diffusing substance is radiated to the outside of the optical fiber. Alternatively, as shown in the figure, the optical fiber 41 may be inserted through the transparent columnar body 23 having a triangular cross section, touching the side of the columnar body 23. In this way, the optical fiber 41 can be introduced into the columnar body 23. The light propagates toward the opposite apex angle while being reflected by the two adjacent sides of the triangle, and during that time, the angle of incidence with respect to the two sides gradually increases, making it easier to be emitted from the columnar body 23, and the light inside the optical fiber increases. can be effectively supplied to plants.

In this way, in the present invention, sufficient nutrients and light are supplied to the plant P to effectively cultivate the plant P. However, in order to more effectively promote photosynthesis of the plant P, It is necessary to supply carbon dioxide gas to the plant P.

Reference numeral 30 denotes a cover member provided for supplying carbon dioxide gas to the stems and leaves of the plant P. The cover member 30 is made of a transparent member, as shown in FIG. is the first
(A cross-sectional view taken along the line IV-rV in the figure is shown), for example, it is configured to be removable by adhering two members airtightly with bolts or the like, and the cover member accommodates the plant p. A lid member 31 made of, for example, an opaque body is provided above the cover member 30 and the lid member 23 to form a sealed chamber in cooperation with the cover member. Therefore, sufficient nutrients, sufficient light, and sufficient carbon dioxide gas can be supplied to the plants P, and the plants P can be cultivated more effectively. Plants are required to perform photosynthesis while their stomata are open, but once their stomata are closed, they do not need light. At the same time, the light supply is cut off,
Photosynthesis can be promoted more effectively by blocking extraneous light, such as by covering the entire cultivation tank with a curtain. Reference numeral 32 designates a curtain that was installed based on such a request. When the stomata of the plant close, the supply of light from the optical fiber is cut off, and the curtain 32 is lowered to completely cut off the supply of light to the plant P. During this period of darkness, the plant p transfers photosynthetic substances toward the fruit.In other words, if the curtain is lowered for the time period during which photosynthetic substances are transferred toward the fruit, it will be even more effective. Plants can be cultivated.

As is clear from the above description, according to the present invention, plants can be effectively cultivated with a simple configuration that does not require much space.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view for explaining one embodiment of the present invention, and FIGS. 2 to 4 are sectional views of essential parts of the present invention. 10...Darkroom part, 20...Transparent hollow columnar body, 30
...Cover member, 40...Light conductor cable, 41.
...Optical fiber. 1st figure 4n 2nd figure 3rd figure 4th figure

Claims (2)

[Claims] (1) Consists of a dark room that accommodates the roots of plants, a plurality of transparent hollow columnar bodies erected above the darkroom, and a transparent container that covers the entire plurality of columnar bodies. , in a cultivation tank in which nutrients are supplied to the plant in the dark room section, and the columnar body constitutes a support section that supports the stems and leaves of the plant, an optical fiber is inserted into the columnar body of the transparent hollow body. A light cultivation tank characterized in that the light emitted from the optical fiber is irradiated onto the stems and leaves of the plant, and the transparent container is covered with a curtain. (2) The optical cultivation tank according to claim (1), wherein the container is a closed container, and carbon dioxide gas can be supplied into the closed container.