JP5239586B2 - Upper light - Google Patents

Description

  The present invention relates to an upper light that emits light upward from a light source arranged near the ground to illuminate various buildings and trees.

  In order to enhance the effect of nighttime lighting, conventionally, an upper light that emits light upward from a light source disposed near the surface of the earth to illuminate various buildings and trees has been used.

  As described above, since the conventional upper light mainly focuses on illuminating various buildings and trees upward, the cover itself covering the light source of the upper light does not emit light.

  Therefore, when multiple conventional upper lights are installed along the shoulder of a sidewalk, for example, the upper light cover itself does not emit light, so there is still an inadequate aspect for enhancing the effect in night illumination. Can not be illuminated at the same time, the road surface near the place where the upper light is installed becomes darker, which may hinder walking.

In order to brighten the road surface in the vicinity of the place where the upper light is installed, for example, as described in Patent Document 1, it is conceivable to provide a light source dedicated to road illumination separately from the upper light.
JP 2002-324411 A

  However, providing a light source dedicated to road illumination in the vicinity of the installation location, separately from the upper light, requires extra labor and increases costs.

  The present invention has been made in order to solve the above-described problems, and can suppress the increase in cost as much as possible, can further enhance the effect of nighttime illumination, and can simultaneously illuminate the road surface and the like. The purpose is to provide upper light.

In order to achieve the above object, an upper light according to a first aspect of the present invention has an instrument main body held near the ground surface, and the instrument main body is a light source for upward illumination disposed in a case. When the peripheral side portion of the case so that the first cover member for transmitting light disposed in the upper portion, the light reflected by at least said first cover member is irradiated facing the upper surface of the light source and a second cover member for transmitting light disposed in the light transmittance of the first cover member, and being smaller than the light transmittance of the second cover member.

  According to a second aspect of the present invention, in the upper light according to the first aspect, the light reflectance of the first cover member is greater than the light reflectance of the second cover member. It is characterized by.

  According to the first aspect of the present invention, the light transmittance of the first cover member for light transmission is smaller than the light transmittance of the second cover member, but the light irradiated upward from the light source is The light passes through the first cover member and is emitted to the outside, so that the original function of illuminating various buildings and trees can be sufficiently exhibited. At the same time, part of the light from the light source is reflected by the first cover member and the inner wall of the case, and then passes through a second cover member that is provided on the peripheral side of the case and does not face the light source to be emitted to the outside. Therefore, the second cover member itself also emits light. For this reason, it is possible to enhance the effect of night illumination, and to simultaneously illuminate the road surface and the like. In addition, since one light source can be used for both the upper illumination and the road illumination, it is not necessary to provide a light source dedicated to the road illumination separately from the upper light, and it is possible to realize it while suppressing an increase in cost as much as possible.

  According to the second aspect of the present invention, since the light reflectance of the first cover member is larger than the light reflectance of the second cover member, a part of the light from the light source is the first cover member. Therefore, the second cover member can emit light effectively.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a side sectional view of an upper light according to an embodiment of the present invention, FIG. 2 is a partial plan view showing a part of the upper light, and FIG. 3 is a part showing a part of the upper light. It is a front view.

  The upper light of this embodiment includes an instrument main body 1 that is held near the ground surface. The instrument main body 1 is provided with a support column 3 that is erected from the ground 2 and a mounting support bar 4 that is suspended from the support column 3. Is fixed. In this case, the instrument main body 1 is installed, for example, at a height of 1 m or less from the ground surface, and emits light upward from a light source 6 to be described later to illuminate various buildings and trees.

  Here, the appliance body 1 includes a substantially box-shaped case 5 in which a light source 6 for upward illumination is disposed. The light source 6 includes a substantially bowl-shaped hood member 9, and a lamp 10 such as a high-intensity discharge lamp is provided in the hood member 9. One end of the hood member 9 is attached to the mounting support rod 3. The screw 12 is attached so as to be swingable. The curved inner surface of the hood member 9 is formed as a reflecting mirror, and a transparent plate 11 made of glass or the like is attached to the upper surface opening side of the hood member 9.

  On the other hand, the case 5 is made of, for example, a resin molded product or an aluminum die-cast product, and a first cover member 15 for transmitting light is attached to the upper portion facing the upper surface of the light source 6 by a fixture 16, Each of the four surfaces of the peripheral side portion of the case 5 is provided with a second cover member 17 for transmitting light. In this case, the first and second cover members 15 and 17 are both flat plates made of, for example, a transparent acrylic resin having a thickness of about 3 mm. The light transmittance of the first cover member 15 is made smaller than the light transmittance of the second cover member 17. However, each material is selected so that the light transmittance of the material itself of the first cover member 15 is larger than the light transmittance of the second cover member 17.

  Moreover, the light reflectance of the first cover member 15 is set to be larger than the light reflectance of the second cover member 17. In this case, the second cover member 17 is not subjected to special processing for adjusting the light reflectance, and the first cover member 15 is, for example, a fine dot pattern (for example, made of a reflective white paint on the surface). (Not shown) is formed by printing or the like, and the light reflectance is adjusted by appropriately setting the arrangement density of the dot pattern at that time. Instead of forming a dot pattern, for example, the light reflectance can be adjusted by changing the mixing ratio of silica powder with respect to the transparent acrylic resin.

  Thus, in the upper light of this embodiment, the light transmittance of the first cover member 15 for light transmission and the material itself is larger than the light transmittance of the second cover member 17. The light emitted upward is transmitted through the first cover member 15 and is emitted to the outside, so that the original function of illuminating various buildings and trees upwards can be sufficiently exhibited. it can. At the same time, since the light transmittance of the first cover member is smaller than the light transmittance of the second cover member, a part of the light from the light source 6 is reflected by the first cover member 15 and the inner surface of the case 5. Then, the light passes through the second cover member 17 and is emitted to the outside, and the second cover member 17 itself also emits light. Therefore, it is possible to enhance the effect of night illumination and to illuminate the road surface at the same time. In addition, since the single light source 6 can be used for both the upper illumination and the road illumination, it is not necessary to provide a light source dedicated to the road illumination separately from the upper light, and it can be realized while suppressing the cost increase as much as possible.

  Further, since the light reflectance of the first cover member 15 is larger than the light reflectance of the second cover member 17, part of the light from the light source 6 is efficiently reflected by the first cover member 15. As a result, the second cover member 17 can emit light effectively.

  In this embodiment, the first and second cover members 15 and 17 are made of a plastic flat plate such as an acrylic resin, but may be made of glass. In this embodiment, the bottom plate of the case 5 is opaque. However, the case 5 may be formed of the same material as that of the second cover member 17 so that the entire case 5 emits light.

It is side surface sectional drawing of the upper light in embodiment of this invention. It is a fragmentary top view which notches and shows a part of the same upper light. It is a partial front view which notches and shows a part of same upper light.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument main body 5 Case 6 Light source 15 1st cover member 17 2nd cover member

Claims (2)

It has an instrument body that is held near the ground surface,
The instrument body has a light source for upward illumination disposed within the casing,
A first cover member for transmitting light disposed in the upper portion facing the upper surface of the light source,
A light-transmitting second cover member disposed on the peripheral side portion of the case so that at least the light reflected by the first cover member is irradiated ,
The upper lights light transmittance of the first cover member may be smaller than the light transmittance of the second cover member. The upper light according to claim 1, wherein the light reflectance of the first cover member is larger than the light reflectance of the second cover member.

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