JPH0647032B2 - Golf course green with light supplement - Google Patents

Description

The present invention relates to a green with a light supplement device for promoting the growth of turfgrass.

(Prior art and its problems) Short winter days and periods when the sunshine hours are shortened due to the decrease of the sun altitude, and areas where sunshine hours are short on the terrain, or trees cannot be felled due to nature conservation. In the golf course green, which is shaded due to lack of sunlight, it is not possible to grow high quality turfgrass, so not only can you not play comfortably, but also increase the number of fertilizer applications to keep the green in good condition. It requires unnecessary labor.

Conventionally, by cutting trees around the green, cutting down the branches, or by unwilling modeling that impairs the aesthetics and strategicity of the modeling, I tried to make it possible to receive sunlight on the green surface as much as possible, or in the shade. Although measures such as planting turfgrass that can withstand have been taken, the actual situation is that none of them have produced good results.

(Means and Actions for Solving the Present Invention) The present invention is suitable for a case where a golf green has to be formed on a terrain where the trees are shaded or where the sunshine duration is short. It is characterized in that it is equipped with a supplementary device including an illuminating lamp and a reflector having a luminous intensity suitable for growth.

The illuminating lamp used in the present invention is one that can emit a light intensity suitable for the growth of turfgrass, but various kinds of turfgrass may be mixed, and turfgrass grows only with a single light. Therefore, it is not necessary to use a single lamp as an illuminating lamp, and it is preferable to use lamps having various illuminances. The illumination light may be turned off on the green if necessary. As a reflector, it is basically used to reflect sunlight, but it is also used to reflect light from the illuminating lamp. The reflector is not particularly limited, but it is advantageous if, for example, only the light of sunlight suitable for the growth of turf grass is reflected, because the player is not dazzled by the reflected light. Advantageously, the reflector is turned in time so that the sunlight is always reflected by the green.

Since the supplementary device in the present invention is normally used during the day,
The illumination lamp and the reflector can be used in combination.
As a combination method, an illumination lamp and a reflector may be separately set up on the green, or the illumination lamp may be incorporated in the reflector.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view in which a light supplement device according to the present invention is installed. In the figure, 1 is green, 2 is an illuminating lamp, 3 is a reflector, and the illuminating lamp 2 and the reflector 3 are poles 21 and 31 respectively.
Is mounted on.

The light compensation point of turfgrass, especially bentgrass, is 900 to 1000 lux, and the light quality is effective at wavelengths of 600 to 680 nm.

Examples of light sources that meet these requirements include a positive lamp (metal hydrate lamp), a BOC lamp (metal hydrate lamp), a fluorescent lamp, and a fluorescent mercury lamp. These light bulbs, such as sunlight lamp (400W) + BOC lamp (400
W) + fluorescent mercury lamp (1000W) input power ratio 3: 1:
It is suitable to use the lamp so that the number of lamps is 12, 12 and 4, respectively, so as to have the light source arrangement shown in FIG. In FIG. 2, 4 is a positive lamp, 5 is a BOC lamp, and 6 is a fluorescent mercury lamp.

These projectors (beam angle 60-73 °, beam efficiency 43-50)
%), Which does not hinder play, for example, set a pole of 10m to 15m at an appropriate position 10m away from the green edge, and set it so that the direction of the shade part is more oriented.

As a result, for a green with a diameter of 30m, if the height of the pole is 10m, the center of the green is 1550 lux, the orthogonal green edge of the pole is 2570 lux and the parallel green edge is 13 lux.
An illuminance of 00 lux was obtained.

On the other hand, when a reflector is used, a flat or convex reflector having a durable glossy surface such as a stainless steel plate, which replaces these projectors, is attached to reflect with the heat rays to supplement the light.

(Effects of the Invention) As described above, the present invention is one in which a light supplement device is installed on a golf course green constructed at a point where it cannot receive direct sunlight or has a short light receiving time, There is a great advantage in developing golf course greens that satisfy players in the construction of golf courses where tree cutting has been significantly restricted as it is today. In addition, since it is possible to avoid unnecessarily large amounts of fertilization and spraying of pesticides during the maintenance of the green, there are various excellent effects such as no pollution problem.

[Brief description of drawings]

 FIG. 1 is a sketch for explaining an embodiment of the present invention, and FIG. 2 is a front view showing an example of the arrangement of illumination lamps. In the figure 1 …… Golf course green 2 …… Lighting lamp 3 …… Reflector 4, 5, 6 …… Lighting lamp

Claims (1)

[Claims] 1. A light supplement device characterized in that an illuminating lamp and / or a reflector having a luminous intensity suitable for growing turf grass is installed near a golf course green in an area where the sunshine duration or sunshine amount is insufficient. Golf course green.