JP4041556B2 - Firefly protection light - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a firefly protection lamp that does not adversely affect fireflies.
[0002]
[Prior art and problems to be solved by the invention]
In recent years, “fireflies” protection campaigns have been carried out in various places with the cooperation of local governments as a measure for revitalizing towns and villages. In particular, Genji fireflies and Heike fireflies are said to live only in the clear stream, so the conservation movement has an aspect that greatly contributes not only to the improvement of the image of towns and villages but also to environmental conservation. However, this approach contains various problems in environmental conservation and securing of a living base. One example is reported that artificial lighting (mainly security lights) has an effect on firefly habitat. Firefly luminescence is indispensable for communication between fireflies, and the powerful external light that disturbs and confused the luminescence directly affects the survival of fireflies . There have been cases where fireflies have disappeared in the vicinity after the installation of security lights in the firefly habitat. Artificial lighting, on the other hand, provides a safe and comfortable living environment for humans.
[0003]
Its in our child to experimentally investigate the relationship between the flying light-emitting intensity and the light color and the fireflies of the illumination light, to give one of the data in considering the coexistence of artificial illumination light and the firefly as life light. Based on the results of this survey, a model lamp was produced.
[0004]
The present invention has been made to solve the above-described conventional problems, and provides an illuminating device that can sufficiently secure artificial lighting as living light and that does not adversely affect fireflies.
[0005]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0006]
Firefly protection, characterized in that the sodium lamp 1 whose light color is orange is provided with an illumination adjustment mechanism 4 capable of adjusting the illumination, and is irradiated with light of 0.3 to 1 lux. It relates to the light.
[0007]
Further, in the firefly protection lamp according to claim 1, illumination cover 2 formed with openings 3 which can be irradiated with light and a predetermined direction to cover said sodium lamp 1 is provided in the sodium lamp 1, the illumination The cover 2 is provided with the illumination intensity adjusting mechanism 4 and relates to a firefly protection lamp.
[0008]
Further, in the firefly protection lamp according to claim 2, the illumination intensity adjusting mechanism 4 is configured to adjust the illumination intensity by combining a plurality of translucent acrylic plates having different thicknesses and colors. It relates to firefly protection lights .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The form status of the present invention considered to be preferred, will be described briefly shows the effects thereof with reference to the drawings.
[0010]
According to the present invention, the sodium lamp 1 whose light color is orange is provided with the illumination intensity adjustment mechanism 4 that can adjust the illumination intensity so that light of 0.3 to 1 lux is irradiated. sodium lamp 1 for emitting light color of less orange of preventing emission of barrel, can be adjusted more illumination of proof saturation adjustment mechanism 4 so as not to interfere with the generation of fireflies, the result, firefly as in the natural environment without illumination, what can also emit light without hinder, communication firefly each other is performed freely, fireflies free flight to can Rukoto, copulation also performed freely As a result, fireflies are actively breeding to ensure that the fireflies live.
[0011]
According to another aspect of the invention, lighting cover 2 formed with openings 3 which can Rukoto be irradiated with light in a predetermined direction and covers the sodium lamp 1 is provided in the sodium lamp 1, the illumination cover 2 Since the illumination intensity adjusting mechanism 4 is provided, the light emitted from the sodium lamp 1 is reliably irradiated from the opening 3 of the illumination cover 2 to the place where the illumination is required at the illumination intensity required for the road or the like. , it is possible to perform the illumination to fully satisfy the JIS road lighting standards, for habitat of fireflies, can by illuminating the cover 2 as the illumination light is not directly irradiated, further illumination lighting degree can brightness adjusted since providing the degrees clause mechanism 4, in the illumination level that satisfies the JIS road lighting standards, and to contrast adjusting the illumination level at the lighting degree adjusting mechanism 4 so that the lighting be no orange-based color that prevents emission of firefly It can be.
[0012]
Therefore, since the lighting cover 2 is provided on the sodium lamp 1 so that the firefly habitat is not irradiated with light so as not to disturb the light emission of the firefly, and the illumination intensity adjusting mechanism 4 is provided on the lighting cover 2, the generation of fireflies The illumination intensity can be adjusted by the illumination intensity adjusting mechanism 4 so as not to interfere with the light. As a result, the fireflies can emit light without any interference as in a natural environment without illumination. of communication is carried out freely, fireflies can you to freely flying, copulation is also done freely, breeding of fireflies been actively carried out, so that the habitat of fireflies is reliably guaranteed.
[0013]
【Example】
A firefly protection lamp according to an embodiment of the present invention will be described below with reference to the drawings.
[0014]
In this embodiment, as shown in FIGS. 1 and 2, as an illumination lamp 1 such as a crime prevention lamp provided in an urban area or a general illumination lamp installed in a park, a lower end portion is placed above a support column 5 embedded in the ground. A sodium lamp 1 of a high-pressure sodium lamp (for example, high power factor type 40 W) that emits an orange color is provided, and an opening 3 that surrounds the upper and outer periphery of the sodium lamp 1 and can be illuminated in a desired direction. the light cover 2 provided provided above part of the strut 5, and the provided illumination degree adjusting mechanism 4 capable of adjusting the light color is possible brightness adjust illumination level to the lower part of the sodium lamp 1 in this lighting unit cover 2.
[0015]
As the illumination intensity adjusting mechanism 4, a desired color (an orange system color has no adverse effect on fireflies has been confirmed by an experimental result described later). In this case, the orange system color is semi-transparent. A bright acrylic plate is appropriately mounted and fixed in the lighting cover 2.
[0016]
The lighting degree adjusting mechanism 4, for the desired adjustment of the illumination level to illuminate with light color and light color adjusting in the desired illumination level to the outside by the illumination level and light color of the lamp 1, semipermeable Ming The thickness, material, or color of the acrylic plate is selected, but in some cases, a plurality of acrylic plates having different thicknesses and colors may be used in combination.
[0017]
The reason for using a sodium lamp as the light source is that the light color is orange, and it is also highly efficient and has a long life.
[0018]
The role of the illumination intensity adjustment mechanism 4 is to prevent glare (glare) perception even when the light source is directly looked at by providing the light source surface with diffusibility in addition to adjusting the light color and illumination intensity. have.
[0019]
Next, the results of various experimental studies in developing the firefly protection lamp of this example will be described.
[0020]
In order to experimentally investigate the influence of the brightness of the irradiation light source (or the illuminance on the horizontal surface of the illuminated surface) and the light color on the firefly flight emission, an experimental booth was installed in a corner of the firefly habitat. Then, under conditions close to the natural environment, at least 50 or more Heike fireflies were released into the booth, and the flight emission state of the fireflies in the booth when the brightness (or illumination level ) and color of the irradiated light were changed was investigated. The experiment booth has a cubic shape, and the upper part of the booth is covered with plates to install a light source. In the center of the upper part, there is an incident window of diffusion glass having a size of 17 cm × 30 cm square. The lower part is in contact with natural vegetation, and the surrounding area is covered with a fine black mesh sheet so that the light emission status of the fireflies can be observed from outside. The luminance value (or illuminated surface illuminance value) of the light source irradiated into the booth is variably set using a dimmer with two three-wavelength fluorescent lamps (for daylight color) in the light source booth. The light color of the irradiation light was created by superimposing a translucent colored acrylic plate or a translucent kraft sheet on the entrance window.
[0021]
The experimental results are shown in FIG. FIG. 3 shows the relationship between the horizontal illuminance on the bottom of the booth just below the light source and the number of fireflies emitted. The number of fireflies emitted exponentially decreases as the illuminated surface illuminance increases. The degree of decrease can be broadly divided into two groups: orange (red, orange) and other (white, green, blue). When the illuminance on the illuminated surface is about 1 lux, the orange color is reduced by about 25% compared to the non-lighted state, whereas in other color systems, it is drastically reduced by more than 70%.
[0022]
Fireflies also inhabit areas around the city where there are relatively few people. The lighting in this area is mainly a crime prevention light for the purpose of public safety at night. Security lights are mainly fluorescent and mercury lamps as light sources. According to the JIS road lighting standard, when the traffic volume is small and the lighting environment around the road is dark from the viewpoint of the driver, the recommended value of the average road surface brightness of the road is 0.5 [cd / m ² ]. From the viewpoint of pedestrians, the horizontal illuminance on the road surface is recommended to be 0.3 to 3 [lx] for the purpose of easily recognizing the road surface condition, ensuring the safety of walking and preventing crime.
[0023]
When the actual horizontal illuminance was measured at the place where the security light was installed near the firefly habitat, it was about 1.5 [lx] just below the security light, and a point along the semicircle with a radius of 2 [m], about 1.0 [ lx] sufficiently satisfied the recommended lighting . The road surface brightness of asphalt was 1 [cd / m ² ] or less.
[0024]
The empirical fact that firefly flight emission decreases even at night of full moon ( lighting level of about 0.2 lux), and the results of the investigation of the relationship between the brightness (or horizontal illuminance), the light color and the number of firefly flight emission, and road lighting According to the standards, street lights including security lights in firefly habitats are considered as follows in terms of light color and brightness.
[0025]
The horizontal illuminance on the road surface is about 0.3 to 1 lux, and the light color of the light source is preferably orange.
[0026]
Even a slight brightness affects the firefly flight emission, so a luminaire that takes into account the light distribution is desired so that light does not leak outside the road that is the target of illumination.
[0027]
【The invention's effect】
Since the present invention is configured to illuminate 0.3 to 1 lux light by providing an illumination intensity adjustment mechanism capable of adjusting the illumination intensity to a sodium lamp whose light color is orange , light emission of fireflies This is a sodium lamp that emits an orange-colored light that does not disturb the light.The light intensity can be adjusted by the light intensity adjustment mechanism so as not to prevent the occurrence of fireflies. as in, what can also be a light-emitting rather than hinder, carried out free to communicate the firefly each other, fireflies can you to freely flying, copulation is also done freely, actively breeding of firefly This ensures that firefly habitat is guaranteed.
[0028]
In the invention of claim 2, the sodium lamp is provided with an illumination cover that covers the sodium lamp and has an opening that can irradiate light in a desired direction, and the illumination cover is provided with an illumination intensity adjusting mechanism. Therefore, the light radiated from the sodium lamp is surely radiated from the opening of the lighting cover to the place where the illumination is necessary at the illumination degree required for the road etc., and the illumination that sufficiently satisfies the JIS road illumination standard is performed. it is possible, for the habitat of fireflies, can such that light illuminated by the light cover is not directly irradiated, further, since providing the illumination level adjusting mechanism lighting degree can brightness adjusted, satisfying the JIS road lighting standards lighting degree of the illumination level can be dark adjusted and the illumination level adjusting mechanism so as to be free orange-based color illumination that prevents emission of firefly.
[0029]
Therefore, in order not to interfere with the firefly emission, a light cover is provided on the sodium lamp so that the firefly's habitat is not irradiated with light , and the light intensity adjustment mechanism is provided on this light cover, so that it does not interfere with the occurrence of fireflies. The lighting level can be adjusted by the lighting level adjustment mechanism. As a result, the fireflies can emit light without any hindrance as in a natural environment without lighting, and communication between fireflies is free. Yes, fireflies can fly freely, mating is also free, fireflies are actively breeding, and firefly habitat is guaranteed reliably.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a facility situation of a firefly protection lamp according to an embodiment of the present invention.
FIG. 2 is an enlarged explanatory view of a main part of FIG. 1 according to the present invention.
FIG. 3 is a graph showing experimental results of the present invention.
[Explanation of symbols]
1 Sodium lamp 2 Lighting cover 3 Opening 4 Light intensity adjustment mechanism

Claims (3)

A firefly protection lamp , wherein a sodium lamp whose light color is orange is provided with an illumination adjustment mechanism capable of adjusting illumination, and is irradiated with light of 0.3 to 1 lux . In firefly protection lamp according to claim 1, illumination cover forming an opening capable of irradiating light to and a predetermined direction to cover said sodium lamp is provided in the sodium lamp, the lighting degree in the illumination cover A firefly protection light characterized by an adjustment mechanism . The firefly protection lamp according to claim 2, wherein the illumination intensity adjusting mechanism is configured to adjust the illumination intensity by combining a plurality of translucent acrylic plates having different thicknesses and colors. light.

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