JP2008171591A - Illumination fixture for passage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination fixture for a passage capable of visually recognizing a face of a pedestrian clearly. <P>SOLUTION: In the illumination fixture 1A for the passage in which by emitting light from a light-emitting part 3 supported by the pole main body 2, a walking surface 8a of the passage 8 is illuminated, the height L<SB>2</SB>from the walking surface 8a to the center of the light-emitting part 3 is set to be within a range of 1.5 to 2.0 m. By this, the face of the pedestrian walking in the passage 8 is illuminated from the horizontal direction, and since a shadow is hard to be formed on the face of the pedestrian, the face of the pedestrian becomes possible to be visually recognized clearly. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a passage lighting apparatus.

  2. Description of the Related Art Conventionally, as a passage lighting fixture, one that emits light from a light emitting portion supported by a pole body and illuminates a walking surface of the passage is known (see, for example, Patent Document 1).

In such a passage lighting apparatus, generally, the height from the walking surface to the center of the light emitting portion is set as high as 3 to 6 m or as low as about 1 m.
JP 2000-228105 A

  However, as described above, when the height of the center of the light emitting part is set to be high or low, the face of the pedestrian walking along the passage is illuminated from above or below, so that the face of the pedestrian is tight. Shadows can be made. For this reason, a pedestrian may feel uneasy.

  In view of such circumstances, an object of the present invention is to provide an aisle lighting device that allows a pedestrian's face to be clearly recognized.

  The invention of claim 1 is a passage illuminator that emits light from the light emitting portion supported by the pole body to illuminate the walking surface of the passage, and the height from the walking surface to the center of the light emitting portion. Is set in a range of 1.5 to 2.0 m.

  According to a second aspect of the present invention, in the illumination device for a passage according to the first aspect, the light emitting portion is disposed above or below a light shielding portion that surrounds the light source from the lateral direction, and the light emitting portion is disposed inside the light emitting portion. Is characterized in that a reflection plate is provided that reflects the light emitted from the light source at least in the lateral direction with the amount of light flux reduced.

  According to a third aspect of the present invention, in the passage lighting apparatus according to the second aspect, a substantially hemispherical concave portion for reflecting light emitted from a light source toward the light emitting portion side is provided inside the light shielding portion. The reflective member which has is arrange | positioned.

  A fourth aspect of the present invention is the passage lighting apparatus according to any one of the first to third aspects, wherein the pole body is provided with a light emitting portion in the vicinity of the walking surface. Is.

  According to invention of Claim 1, since the height from the walk surface of a passage to the center of a light emission part was set in the range of 1.5-2.0 m, the face of the pedestrian who walks a passage from a horizontal direction Since it becomes illuminated and it becomes difficult to make a shadow on the face of the pedestrian, the face of the pedestrian can be clearly seen.

  According to the invention of claim 2, since the light source is surrounded by the light shielding portion from the lateral direction, the light from the light source does not directly enter the eyes of the pedestrian. In addition, the light emitting part is disposed above or below the light shielding part, and the reflector is disposed inside the light emitting part in a state where the light emitted from the light source is directed at least in the lateral direction and the amount of light flux is reduced. Therefore, since the light that is reflected by the reflector and reduces the amount of light flux enters the eyes of the pedestrian, it is possible to prevent the pedestrian from feeling dazzled.

  According to invention of Claim 3, the light radiated | emitted from the light source can be efficiently reflected toward the light-projection part side with the reflection member which has a substantially hemispherical recessed part.

  According to the invention of claim 4, the base of the pole body can be recognized by the light emitting portion.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  1 and 2 show a passage lighting apparatus 1A according to a first embodiment of the present invention. This passage lighting fixture 1A is installed, for example, on the side of the passage 8 or the like, and is provided with a pole body 2, a light emitting portion 3 disposed above the pole body 2 and supported by the pole body 2, and a light emission. And a head 4 disposed above the portion 3. The passage lighting apparatus 1 </ b> A emits light from the light emitting unit 3 to illuminate the walking surface 8 a of the passage 8.

  The pole body 2 has a circular cylindrical shape extending in the vertical direction, and a lower portion thereof is embedded in the underground 8b. Further, a hole 21 for inserting a cable is provided in a portion embedded in the ground 8b of the pole body 2, and a cable (not shown) is drawn into the inside from the hole 21, and an incandescent lamp 5A described later is provided. The power is supplied to the.

  At the upper end portion of the pole body 2, a top circular cylindrical cover body (glove) 31 whose upper opening is blocked is attached. The cover body 31 is made of milky white glass and can transmit light while diffusing. Further, the outer diameter of the cover body 31 is set to be approximately the same as the outer diameter of the pole body 2, and the outer peripheral surface of the cover body 31 and the outer peripheral surface of the pole body 2 are substantially flush with each other. Further, the upper end portion of the cover body 31 is covered with a circular container-like lid body 41 that opens downward, and the entire upper surface of the cover body 31 and the upper end portion of the outer peripheral surface are covered with the lid body 41. .

  And the said light emission part 3 is comprised by the part which is not covered with the cover body 41 among the cover bodies 31, in other words, the part which an outer peripheral surface exposes, and the said head 4 consists of the cover body 41 and a cover. The upper end portion of the body 31 is configured.

  Inside the light emitting part 3, a socket 6 supported by the pole body 2 and an incandescent lamp 5A as a light source attached to the socket 6 are disposed. The incandescent lamp 5 </ b> A is located approximately at the center inside the light emitting unit 3.

The height L _{1 of} the light emitting part 3, that is, the height L ₁ from the lower end to the upper end of the light emitting part 3 is, for example, 160 mm.

The height L ₂ to the center (bisecting position the height L ₁ in the vertical direction) of the light emitting portion 3 from the walking surface 8a is set to be within a range of 1.5~2.0m Yes.

In this manner passageway luminaire 1A of the first embodiment, to the center of the light emitting portion 3 a height L ₂ from the set in the range of 1.5~2.0m from the walking surface 8a, the passage 8 Since the face of the walking pedestrian is illuminated from the side, it becomes difficult to make a shadow on the pedestrian's face, so the pedestrian's face can be clearly seen.

  Moreover, since the position of a pedestrian's eyes becomes bright, a pedestrian becomes easy to walk and it becomes excellent in inductivity.

  Furthermore, since the height of the center of the light emitting part 3 is suppressed to about the height of a person, the light emitted from the light emitting part 3 to the walking surface is less likely to be blocked by the branches and leaves of the roadside trees.

  Here, a verification experiment conducted in order to confirm the effect will be described.

  First, a verification experiment was conducted to determine whether the pedestrian's face looks different depending on the height of the light source. Using an incandescent lamp as a light source, as shown in FIG. 3A, the incandescent lamp was disposed at a position 1 m apart in the horizontal direction, and the subject was irradiated with light from the incandescent lamp while changing its height. The subject's viewpoint was 1.5 m from the ground. Evaluation was made on a 5-point scale with respect to how the pedestrian's face can be seen in a pedestrian's walking space at night. The evaluation was performed by five people other than the subjects. The result is shown in FIG.

  As a result, in the light-up from the bottom of the face, the shading of the unevenness of the face extended upward, and the eerie feeling was strong, and the evaluation was low. It was evaluated that the shadows can be relieved without much difference from the daytime when the light is irradiated from the same height as the face or higher.

  Next, as shown in FIG. 4A, an experiment was performed in which the incandescent lamp was separated from the subject by about 10 cm and the subject was irradiated with light from the incandescent lamp. The result is shown in FIG. In addition, since the light source is too close to be evaluated at a height of 1.5 m, which is the viewpoint of the subject, the experiment was performed with the incandescent lamp 1 m away from the subject. Even if the distance is increased, the angle of the light source direction with respect to the face does not change.

  As a result, it was found that when the light source is in the vicinity of the subject, the shadow of the face is too tight and the evaluation is low unless the face is a little above the face (height is about 2 m). This is a phenomenon that can occur more prominently as the light source position is higher.

  From the above two experiments, it can be said that the shadow of the face is the most natural and the sense of security is high if the height of the light emitting part 3 of the passage lighting apparatus 1A is about 1.5 to 2.0 m.

Next, FIG. 5 and FIG. 6 show a passage lighting apparatus 1B according to a second embodiment of the present invention. In the passage luminaire 1B, similarly to the first embodiment, but from the walking surface 8a height L ₂ to the center of the light emitting portion 3 is set in the range of 1.5～2.0M ( the height L ₂ configuration, also in the third and fourth embodiments described below), with the size of the head 4 is larger in the vertical direction, the interior of the head 4, compact as a light source Fluorescent lamp 5B is provided. That is, the head 4 is a light shielding portion that surrounds the fluorescent lamp 5B from the lateral direction. An inverter lighting type lighting device 7 is disposed inside the pole body 2.

  In addition, a reflection member 42 having a substantially hemispherical recess that opens downward toward the fluorescent lamp 5B is disposed inside the head (light-shielding portion) 4. The upper end portion of the fluorescent lamp 5B slightly enters the space surrounded by the reflecting member 42. For this reason, the light emitted upward from the fluorescent lamp 5B is reflected downward by the reflecting member 42 on the light emitting part 3 side.

  Further, a socket 6 is disposed inside the light emitting portion 3 so that an upper end portion enters the inside of the head 4. Below the socket 6, a lower end portion of the socket 6 and the pole body 2 are disposed. A truncated conical (cone-shaped) reflecting plate 33 is provided extending downward while expanding the diameter so as to connect the upper end portion linearly.

  The reflection plate 33 is surface-treated so as to reflect the light incident on the surface while diffusing it. For this reason, when the light radiated downward from the fluorescent lamp 5B and the light radiated upward from the fluorescent lamp 5B and reflected downward by the reflective member 42 are incident on the reflective plate 33, the reflective plate 33 itself is It has a moderately attenuated brightness. In other words, the light emitted from the fluorescent lamp 5B is reflected with the amount of light flux reduced at least in the lateral direction while being diffused by the reflecting plate 33 (see arrow b in the figure). The reflecting plate 33 may be any plate that reflects the light emitted from the fluorescent lamp 5B at least in the horizontal direction and reduces the amount of light flux. For example, the angle of the light is somewhat relaxed to a certain extent. You may comprise what was surface-treated so that it might absorb.

  Moreover, in 3rd Embodiment, the cover body 31 is comprised with the transparent circular cylindrical acrylic pipe.

  In the passage lighting fixture 1B configured in this way, in the drawing, of the light emitted downward from the fluorescent lamp 5B and the light emitted downward from the fluorescent lamp 5B and reflected downward by the reflecting member 42 As shown by the arrow a, the light incident on the cover body 31 passes through the cover body 31 as it is and is directly irradiated onto the walking surface 8a. For this reason, the walking surface 8a can be illuminated with sufficient illuminance.

  In the second embodiment, the fluorescent lamp 5B is disposed in the head 4 so that the fluorescent lamp 5B is surrounded by the head 4 from the lateral direction. There is no direct entry. In addition, a reflecting plate 33 that reflects the light emitted from the fluorescent lamp 5B while diffusing the light emitted from the fluorescent lamp 5B and reducing the amount of light flux at least in the lateral direction is disposed inside the light emitting unit 3 disposed below the head 4. Since it is disposed, diffused light reflected by the reflecting plate 33 and reduced in the amount of light flux enters the pedestrian's eyes, so that it is possible to prevent the pedestrian from feeling dazzled.

  Such a weak light is preferable as a mark when the low-sighted person walks because the low-sighted person whose brightness is a mark can walk while facing the front.

  Furthermore, in the second embodiment, the light emitted upward from the fluorescent lamp 5B can be efficiently reflected downward by the reflecting member 42 having a substantially hemispherical recess.

  In addition, the effect about the center height of the light emission part 3 is the same as 1st Embodiment. The same applies to third and fourth embodiments described later.

  Next, FIG. 7 shows a passage lighting apparatus 1C according to a third embodiment of the present invention. In this passage lighting fixture 1C, a fluorescent lamp 5B is disposed inside the upper end portion of the pole body 2 located below the light emitting portion 3, contrary to the second embodiment. That is, the upper end portion of the pole body 2 serves as a light shielding portion that surrounds the fluorescent lamp 5B from the lateral direction.

  In the third embodiment, the reflection plate 33 disposed inside the light emitting unit 3 reflects the light emitted upward from the fluorescent lamp 5B while diffusing mainly from the lower side to the horizontal direction. In addition, it has a conical shape that extends upward while expanding.

  In this way, not only can the pedestrian not feel dazzling as in the second embodiment, but also the size of the head 4 can be reduced compared to the second embodiment. The design is excellent and the overall height of the lighting fixture can be reduced.

  Also in the third embodiment, the reflecting member 42 shown in the second embodiment is provided in the opposite direction below the fluorescent lamp 5B, and the light emitted downward from the fluorescent lamp 5B by the reflecting member 42 is emitted. You may make it reflect toward the upper part which is the part 3 side.

  Next, FIG. 8 shows a passage lighting apparatus 1D according to a fourth embodiment of the present invention. This passage lighting fixture 1D is provided with a light emitting portion 22 in the vicinity of the walking surface 8a of the pole body 2 in the passage lighting fixture 1B of the second embodiment. The light emitting unit 22 is a light emitting diode (LED) covered with a milky white diffusion panel, so that the light emitting state can be viewed from a wide angle.

  In 1st-3rd embodiment, the base vicinity of the pole main body 2 will become dark. On the other hand, if the light emitting part 22 is provided in the vicinity of the light emitting surface 8a of the pole body 2 as in the fourth embodiment, the base of the pole body 2 can be recognized by the light emitting part 22. For example, as shown in FIG. 9, when the passage lighting apparatus 1D is provided at the boundary between the sidewalk and the roadway, the pedestrian recognizes the base of the pole 2 to determine how far the sidewalk is, that is, the width of the sidewalk. Will be able to grasp.

  In addition, the light emission part 22 can also be provided in the pole main body 2 in the lighting fixtures 1A and 1C for passage shown in the first embodiment and the third embodiment.

It is a front view of the lighting fixture for passages concerning a 1st embodiment of the present invention. It is a partial cross section front view showing the upper part of the lighting fixture for passages of a 1st embodiment. (A) is a model figure of verification experiment, (b) is a figure which shows a verification result. (A) is a model figure of verification experiment, (b) is a figure which shows a verification result. It is a front view of the lighting fixture for passages concerning a 2nd embodiment of the present invention. It is a partial cross section front view which shows the upper part of the lighting fixture for channel | paths of 2nd Embodiment. It is a front view of the lighting fixture for passages concerning a 3rd embodiment of the present invention. It is a front view of the lighting fixture for passages concerning a 4th embodiment of the present invention. It is the layout which provided the lighting fixture for passage of 4th Embodiment in the boundary part of a sidewalk and a roadway.

Explanation of symbols

1A to 1D Lighting fixture for passage 2 Pole body 22 Light emitting part 3 Light emitting part 31 Cover body 33 Reflector 4 Head (light shielding part)
42 Reflective member 5A Incandescent lamp (light source)
5B Fluorescent lamp (light source)
8 passage 8a walking surface

Claims (4)

A lighting device for a passage that emits light from a light emitting portion supported by a pole body and illuminates the walking surface of the passage,
The passage lighting apparatus, wherein a height from the walking surface to the center of the light emitting portion is set in a range of 1.5 to 2.0 m.   The light emitting unit is disposed above or below a light shielding unit that surrounds the light source from the lateral direction. Inside the light emitting unit, the light emitted from the light source is directed at least in the lateral direction to reduce the amount of light flux. 2. The passage lighting apparatus according to claim 1, further comprising a reflecting plate that reflects in a reduced state.   The reflection member having a substantially hemispherical concave portion that reflects light emitted from a light source toward the light emitting portion side is disposed inside the light shielding portion. Luminaires for the aisle.   The lighting device for passage according to any one of claims 1 to 3, wherein said pole body is provided with a light emitting part in the vicinity of said walking surface.

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