JPH06276858A - Device for lighting plant in closed space - Google Patents

Abstract

PURPOSE:To obtain a device for lighting plants in a closed space capable of illuminating for 24 hours, securing safety and human safety and peace and smoothing rotation and flow of plants in a closed space. CONSTITUTION:Plants are illuminated alternately by green light in a range of 500nm to 570nm and white light in a range of 300nm to 80nm or by the green light for a longer time than by the white light.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a nighttime lighting structure for a plant in an enclosed space.

[0002]

2. Description of the Related Art In recent years, windowless buildings such as basements, subways, and underground malls have been increasing. In such a closed space isolated from the external light environment, a lighting device for coexistence of humans and plants has been developed. By the way, it is worried that a psychological or physiological influence is great when working for a long time in an enclosed space. Therefore, introduction and arrangement of plants have been attempted in order to improve the environment of the enclosed space. However, in a closed space, the plants cannot be maintained and grown unless they are illuminated with light that changes day and night.

Conventionally, as a structure for irradiating a plant with artificial light, for example, a structure in which external light is introduced by an optical fiber or a structure in which a lamp having a different light color is changed depending on the season has been tried. There is. In the closed space,
It is assumed that lighting is performed for 24 hours from the viewpoint of safety and security for humans.

[0004]

However, when illumination is performed for 24 hours, day and night cannot be repeated at regular intervals, and the plant moves from one area to another area to transfer the substances constituting the plant. It has the drawback that it cannot flow and cannot maintain and grow plants.

The present invention has been made in view of the above points, and it is possible to ensure the safety and security of human beings by illuminating for 24 hours, and to smoothly carry out the translocation action on plants. An object of the present invention is to provide a plant lighting device in a closed space that can grow.

[0006]

The present invention has the following constitution in order to solve the above problems. That is, the present invention relates to a plant lighting device for a plant in a closed space, which grows by irradiating the plant in the closed space with artificial light. Plants in enclosed spaces with green light in the range of 500nm to 570nm and 300nm to 800nm
Alternately illuminate with white light in the nm range. The green light irradiation time is set shorter than the white light irradiation time. The wavelength range for plant growth is 400 nm to 700 nm, which is mainly effective for photosynthesis, 300 nm to 500 nm, which is a coloring pigment and chlorophyll reaction, and 600 nm to 800 nm, which is a reaction of phytochrome and chlorophyll.
m wavelengths are required.

[0007]

According to the plant illuminating device in the enclosed space having the above-mentioned structure, since the green light and the white light are alternately radiated, a day-night change is constituted, the translocation action of the plant is smoothly performed, and the plant is cultivated. Can be achieved. Also 500 nm to 570
Green light in the range of nm is a low level for plants, so it becomes a night time zone, but for humans having a visual sensitivity of 555 nm, it is bright enough to ensure safety and security. obtain.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. In FIG. 1, 1 is a closed space and 2 is a plant in the closed space, for example, various ornamental plants. Reference numeral 3 is an illumination lamp that is turned on at night. The light source of the illumination lamp 3 is, for example, 50
A metal halide lamp having a main wavelength of 0 nm to 570 nm of green light, a color incandescent lamp, a color fluorescent lamp, or the like is used. Reference numeral 4 is an illumination lamp that lights up in the daytime. The illumination lamp 4 is configured by using, for example, a white light metal halide lamp having a wavelength of 300 nm to 800 nm.

Further, the same illuminating device illuminates with green light in the range of 500 nm to 570 nm for a period of time constituting night, for example, for about 8 hours, as shown in FIG. After that, it is illuminated for about 16 hours with white light in the range of 300 nm to 800 nm that constitutes the daytime. This night and day lighting is repeated alternately. Further, when the amount of green light which is the night light is large, the growth is usually good, but when the irradiation time of the white light which is the light of the day is too long, the growth is poor. In addition, photoperiodicity, flowering, etc. usually separate from short-day and long-day plants at 12 hours, and therefore change depending on symmetrical plants.

In addition, by mounting an incandescent lamp, a fluorescent lamp, a metal halide lamp, an LED, etc. in advance on the lighting equipment and further supporting a filter on the front surface of the lighting equipment, the filter can be mechanically moved or wound up. Green light and white light may be generated and illuminated.

[0011]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, since the green light and the white light are alternately irradiated, it is possible to configure day and night changes, to smoothly carry out the translocation action of plants, and to promote the growth of plants. It has a unique effect. Also 500 nm to 570
Green light in the range of nm is a low level for plants, so it becomes a night time zone, but for humans having a visual sensitivity of 555 nm, it is bright enough to ensure safety and security. Has a unique effect to obtain.

[Brief description of drawings]

FIG. 1 is a photosynthetic action curve diagram according to the present invention.

FIG. 2 is a front view of the embodiment of the present invention.

[Explanation of symbols]

 1 Closed space 2 Plants 3 Lighting

Claims (1)

[Claims] 1. Illuminating a plant in an enclosed space with artificial light,
In a plant for illuminating a growing closed space, the plant is alternately irradiated with green light in the range of 500 nm to 570 nm and white light in the range of 300 nm to 800 nm, and the green light is less than white light for a shorter time. An illumination device for a plant in an enclosed space, characterized in that it is configured to illuminate with.