WO2007032063A1

WO2007032063A1 - Lighting apparatus

Info

Publication number: WO2007032063A1
Application number: PCT/JP2005/016915
Authority: WO
Inventors: Toshitaka Tanaka
Original assignee: Toshitaka Tanaka
Priority date: 2005-09-14
Filing date: 2005-09-14
Publication date: 2007-03-22

Abstract

A reflective type lighting apparatus capable of efficiently providing a plurality of lighting spaces by a single light source. In an indirect lighting type lighting apparatus comprising a hollow cylindrical body having a light source therein and vertically installed so as to radiate a light in a predetermined direction, at least two or more reflecting members disposed on the optical axis of the light radiated from the hollow cylindrical body, and a support member supporting the reflecting members in a predetermined attitude, a light transmitting portion is formed in one of the reflecting members to allow the light to transmit to the other of the reflecting members just above the one of the reflecting members. Each of the reflecting members reflects the light so that it can radiate the light in the predetermined direction.

Description

Specification

Lighting device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a lighting device, and more particularly, to a lighting device having a reflecting member installed at a predetermined distance from a light source, and obtaining a desired irradiation range by reflecting light by the reflecting member.

[0002] Instead of a typical illuminating device in which a light source is disposed above a column and an irradiation space is obtained directly or indirectly, a light source is disposed below the column, and a reflector or reflector is disposed above the column. Thus, an illumination device having a form for obtaining an irradiation space is known. This type of lighting device can be said to be excellent in maintainability because the light source and ballast can be placed downward. For example, Japanese Patent Application Laid-Open No. 8-329706 discloses an illuminating device provided with a convex lens for converging light having a light source power and having a convex reflecting mirror for diffusing the light having the converged light source power. Has been through. Further, this publication proposes that the light source itself can be moved up and down and the angle of the reflecting mirror can be adjusted.

[0003] Also, Japanese Patent Laid-Open No. 5-242706 introduces a variable light distribution type lighting device in which a reflector with a variable angle is arranged above a support column and a lighting fixture is arranged below. In this case, a reflector support is provided in the vicinity of the upper end of the support so that the plurality of reflectors can be supported at variable angles, and lighting fixtures are arranged to correspond to each reflector, so that the light distribution can be freely changed. The configuration that can be done is shown! /

Patent Document 1: Japanese Patent Application Laid-Open No. 8-329706

Patent Document 2: JP-A-5-242706

Disclosure of the invention

Problems to be solved by the invention

However, in the illumination device Z fixture described in each of the publications described above, when attempting to obtain a multidirectional illumination space at the same time, the reflected light is diffused as described in JP-A-8-329706. The structure to be made can be considered. In this method, as described in the publication, a uniform irradiation space is formed. Although it can be obtained, it is not efficient when it is desired to irradiate only in any direction and range. From the viewpoint of efficiency, a configuration in which a plurality of sets of light sources and reflecting mirrors are prepared as disclosed in Japanese Patent Laid-Open No. 5-242706 is also conceivable. With this method, it is possible to obtain as many irradiation ranges as the number of light source / reflector pairs. However, as a result of requiring a plurality of light sources, maintainability is impaired.

[0006] The present invention has been made in consideration of the above-described circumstances, and an object of the present invention is to provide a reflective illumination device capable of efficiently obtaining a plurality of irradiation spaces with a single light source. Is to provide.

Means for solving the problem

[0007] According to a first aspect of the present invention that provides means for solving the above problems, a hollow cylinder having a light source therein and radiating in a predetermined direction, and the hollow Provided is an indirect illumination type illuminating device having two or more reflecting members disposed on an optical axis of light emitted from a cylindrical body, and a support member that supports each of the reflecting members in a predetermined posture. Is done. The reflecting member has a translucent part that transmits the irradiation light from the light source to the reflecting member directly above, and is configured so that an angle can be set for each. As a result, each of the reflecting members reflects light and can irradiate a predetermined direction or region.

The invention's effect

[0008] According to the present invention, it is possible to efficiently obtain a plurality of irradiation spaces with a single light source. In addition, since a configuration in which a single light source is disposed below is adopted, maintenance work is also easy.

Brief Description of Drawings

FIG. 1 is a front view of a lighting device according to an embodiment of the present invention.

FIG. 2 is a front view of a lighting device according to an embodiment of the present invention.

FIG. 3 is a plan view of a reflecting mirror of the illumination device according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of a reflecting mirror support portion of an illumination apparatus according to an embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of the lighting apparatus according to the embodiment of the present invention.

FIG. 6 is a plan view for explaining the operation of the lighting apparatus according to the embodiment of the present invention. Explanation of symbols

[0010] 1 Hollow cylinder

2 Wire rod

3a, 3b, 3c reflector

4 Basics

5 Building

11 Light source

12 Ballast

13 Buried part

31b, 31c circular holes

32c

33c Locking member

BEST MODE FOR CARRYING OUT THE INVENTION

[0011] Next, the best mode of the present invention will be described. In a preferred embodiment, the lighting device according to the present invention includes a hollow cylinder (1 in FIG. 1) that supports the entire lighting device, a wire (2 in FIG. 1) for supporting a plurality of reflecting mirrors, and a wire. (3a and 3b in Fig. 1) supported by (2 in Fig. 1).

[0012] The hollow cylinder (1 in Fig. 1) is erected by inserting and fixing the embedded portion (13 in Fig. 1) into the hole provided in the base (4 in Fig. 1). The hollow cylinder (1 in Fig. 1) has a light source (11 in Fig. 1) and a stabilizer (12 in Fig. 1) inside, and can irradiate light from the upper opening. .

[0013] The wire (2 in FIG. 1) is elastic and has one end fixed to a hollow cylindrical body (1 in FIG. 1) and is a wire that can support the reflecting mirror. In this embodiment, four wires (2 in FIG. 1) having sufficient strength are fixed to the end of the hollow cylindrical body at equal intervals, and the reflecting mirrors (3a and 3b in FIG. ) Slidably provided with a locking member for locking!

[0014] The reflecting mirrors (3a and 3b in FIG. 1) are also made of a substantially circular stainless steel member, and a predetermined number of light sources are provided on the optical axis of light emitted from the hollow cylinder (1 in FIG. 1). They are placed at a distance L1 apart from each other. In the present embodiment, the lower reflecting mirror (3b in FIG. 1) of the upper and lower reflecting mirrors (3a and 3b in FIG. 1) has a circle with a diameter of Φ 1 constituting the translucent portion at the center thereof. Hole (31 in Figure 1) b) is provided and has a donut shape. Each reflector (3a, 3b in Fig. 1) is fixed at a predetermined angle at four points by a locking member slidably mounted on the wire (2 in Fig. 1).

[0015] According to the illuminating device thus configured, a plurality of irradiation spaces can be obtained by directing each reflecting mirror in a predetermined azimuth-angle by the locking member (see FIG. 3). The reason is that the lower reflecting mirror (3b in Fig. 1) causes the light from the light source to pass through the circular hole (31b in Fig. 1) by the mirror surface of the part other than the circular hole (31b in Fig. 1) This is because the light is reflected while diffusing to compensate for the missing part, and light is transmitted through the circular hole (31b in Fig. 1) to the upper reflecting mirror (3a in Fig. 1).

As described above, the preferred embodiments of the present invention have been described. However, as is apparent from the principle of the present invention, a multi-directional 'multiple irradiation space' can be obtained using three or more reflecting mirrors. Is possible. In this case, the arrangement of the translucent part of each reflecting mirror is set according to the convergence state of light from the light source and the distance between the light source and each reflecting mirror.

In the above-described embodiment, the description has been made assuming that a stainless steel material that obtains appropriate reflectivity and diffusivity is used as the material of the reflecting mirror. However, other materials that can form a mirror surface are used. Is also fully applicable. For example, metal may be vapor-deposited on a member such as a glass material or a resin material, or a glass, a resin or a metal member may be coated, or a desired surface treatment may be applied to aluminum or other alloys. You may make a frightening configuration. In addition, the mirror surface of any or all of the reflecting mirrors may be convex so that a wider irradiation space can be obtained.

Further, in the above-described embodiment, the viewpoint power of the maintainability has been described as providing the light-transmitting portion by providing the hole that does not require cleaning or replacement of the light-transmitting surface. It is also possible to adopt a configuration in which fats are fitted. If a sufficient distance L1 between the light source and the reflecting mirror or the reflecting mirror cannot be obtained, a diffusion lens is fitted into the opening or the translucent part of the hollow cylinder (1 in FIG. 1). It is also possible to diffuse light appropriately. In this case, the height of the entire lighting device can be shortened.

[0019] In addition to the circular shape, the translucent portion may be a rectangle, a polygon, or a special shape, and a part of the reflector (half, nth quadrant, etc.) may be appropriately shifted and omitted. It may be. Example [0020] Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 is a front view of a lighting device display support device according to an embodiment of the present invention. Referring to FIG. 1, the illuminating device according to the present embodiment includes a hollow cylinder 1 that largely supports the entire illuminating device, a wire 2 for supporting a plurality of reflecting mirrors, and a reflecting mirror 3a supported by the wire 2 , 3b, 3c.

The hollow cylinder 1 is erected by inserting and fixing the embedded portion 13 in a hole provided in the foundation 4.

A light source 11 that also has a metal halide lamp force and a ballast 12 are mounted inside the hollow cylindrical body 1, and light can be irradiated through an upper opening.

[0022] The wire 2 is a stainless steel wire, one end of which is fixed to the hollow cylindrical body 1, and is inserted into the holes provided in the reflecting mirrors 3a, 3b, 3c, respectively, and is slidable. Reflecting mirrors 3a, 3b, and 3c are supported by the provided locking members.

[0023] The reflecting mirrors 3a, 3b, and 3c are made of a substantially circular stainless steel material, and are separated from each other by a predetermined distance on the optical axis of the light emitted from the hollow cylindrical body 1 by a distance Ll, L2 Are arranged at intervals of FIG. 3 is a plan view showing the lowermost reflecting mirror 3c as an example. Referring to FIG. 3, a circular hole 31c having a diameter Φ 2 is provided at the center of the reflecting mirror 3c, and a small hole 32c is provided around the circular hole 31c for inserting the wire 2.

FIG. 4 is a cross-sectional view taken along the line P—P ′ showing an example of the support configuration of the reflecting mirror illustrated in FIG. 3, for example. Referring to FIG. 4, the reflecting mirror 3c is locked by a locking member 33c that is slidably provided on the wire 2 with the wire 2 inserted in the small holes 32c. The locking member has, for example, a tapered outer peripheral portion and a screw portion at the upper end portion, and the outer peripheral portion on the taper becomes the small hole 32c as it is screwed and is strongly inserted into the small hole 32c. It is configured to sit and lock the reflector 3c in place. When the reflecting mirror 3c is locked at each small hole portion, the posture of the reflecting mirror 3c is locked, and the wire 2 between the hollow cylinder 1 and the reflecting mirror 3c is also substantially fixed.

[0025] Further, in the center of the reflector 3b immediately above the reflector 3c, a diameter smaller than the diameter Φ2 is provided.

A circular hole 31b of Φ 1 is provided. Therefore, the light that has passed through the circular hole 31c of the lowermost reflecting mirror 3c can illuminate the mirror surface portion around the circular hole 31b of the reflecting mirror 3b, and further, the circular hole of the reflecting mirror 3c. The light that has passed through the circular holes 31b of 31c and the reflecting mirror 3b passes through the reflecting mirror 3a. It is possible to illuminate.

FIG. 5 and FIG. 6 are diagrams showing the irradiation range obtained by the illumination device according to the present example.

Referring to FIG. 5, the bottom reflector 3c is set in a horizontal state as it is, the center reflector 3b is tilted so that it can illuminate the right side of the front, and the top reflector 3a faces the back of the front. It is tilted so that it can be illuminated.

Therefore, as shown in FIG. 6, the lowermost reflecting mirror 3c reflects the light from the light source 11 at the mirror surface portion other than the circular hole 31c, and the irradiation space S3c represented by the alternate long and short dash line is formed. In addition to the formation, light is transmitted through the circular holes 31c to the reflecting mirrors 3b and 3a. Then, the reflecting mirror 3b immediately above the reflecting mirror 3c reflects the light from the light source 11 at a mirror surface portion other than the circular hole 31b to form an irradiation space S3b represented by a dotted line, and the circular hole 31b transmits light to the reflecting mirror 3a side. The reflecting mirror 3a reflects the light from the light source 11 at the entire mirror surface portion to form an irradiation space S3a represented by a two-dot chain line.

As described above, according to the present invention, it is possible to obtain a large number of irradiation spaces corresponding to the number of reflecting mirrors with a single light source. In addition, referring to Fig. 5, it is possible to irradiate only the necessary direction as is clear, so it is possible to consider the surrounding environment.

[0028] In addition to the configuration of the above-described embodiment, an optical fiber, a light-transmitting acrylic pipe, or the like is appropriately installed between the light source 11 and the reflecting mirrors 3a, 3b, 3c3. The present invention can also be used as a highly decorative lighting device. Further, if a light-transmitting acrylic board or the like is installed below the hollow cylindrical body 1 so that light can be irradiated downward, a more decorative lighting device can be obtained.

[0029] Further, an arbitrary advertisement graphic or the like can be arranged on the surface of the acrylic pipe, and the present invention can also be used as an advertisement display device.

[0030] Further, instead of the topmost reflecting mirror 3a of the configuration of the above-described embodiment, a light-transmitting acrylic board or the like can be arranged, and an arbitrary advertisement graphic or the like can be placed on the surface thereof. It can also be used as an advertising display device.

[0031] Further, in addition to the configuration of the above-described embodiment, a single optical fiber member is disposed on the optical path having a light source power, and further, a decorative property that can be used for an event or the like in combination with the above-described advertising member. It can also be set as a high illuminating device. [0032] Further, in the above-described embodiment, a configuration in which a reflecting mirror is supported by using a plurality of wire rods is employed, but other configurations, as long as the irradiation from the light source and the reflection of the reflecting mirror are not hindered as much as possible, For example, it is possible to adopt a configuration of a support member that is provided with a gripping member provided with a hinge or the like on one support column and supports the reflector in a tiltable manner.

[0033] In the above-described embodiment, the power described as using a metal halide lamp as the light source, as well as other discharge light emission light sources, temperature radiation light sources such as halogen bulbs and incandescent bulbs, EL (Electro Luminescence), etc. It is also possible to use an electroluminescent light source.

Claims

The scope of the claims

[1] A hollow cylinder that has a light source inside and is erected so as to irradiate a predetermined direction;

The hollow cylindrical body force is an illuminating device including two or more reflecting members disposed on an optical axis of light to be irradiated, and a supporting member that supports the reflecting members in a predetermined posture. And a light-transmitting part that transmits the irradiation light from the light source to the reflecting member directly above,

Each reflecting member is configured to be able to set an angle so that each reflecting member reflects light and can irradiate a predetermined direction or region, respectively.

A lighting device characterized by the above.

[2] The lighting device according to claim 1,

Each translucent part is formed in stages so that the translucent part of the lower reflective member is larger than the translucent part of the reflective member directly above,

A lighting device characterized by the above.

[3] In the lighting device according to claim 1 or 2,

The translucent portion is formed by providing a cutout portion in the reflecting member.

[4] The illumination device according to any one of claims 1 to 3,

The reflective member is

Configured to diffuse irradiation light from the light source so as to compensate for a lack of irradiation range due to the translucent portion;

A lighting device characterized by the above.

[5] The lighting device according to any one of claims 1 to 4,

The support member is composed of at least three or more wires fixed to the upper end of the hollow cylindrical body, and a locking member for each reflection member slidably attached to each wire. Lighting device.

The lighting device according to any one of claims 1 to 5, A lighting device, wherein a base plate having a predetermined light transmittance is disposed below the hollow cylinder, and the base plate can be irradiated by a light source inside the hollow cylinder.

[7] The illumination device according to any one of claims 1 to 6,

A transparent pipe having a predetermined light transmittance is erected above the hollow cylindrical body, and an advertising diagram on the surface of the transparent pipe can be displayed.

A lighting device characterized by the above.

[8] The illumination device according to any one of claims 1 to 7,

An illuminating device comprising a sign member or a decorative member instead of the topmost reflective member of the reflective member, and configured to guide the light emitted from the light source power to the surface of the sign member or decorative member. .