JP2000164008A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire capable of preventing electric components from being exposed at the time of light distribution adjustment. SOLUTION: A reflection board 2 in the form of a parabolic curved surface is installed in a luminaire body 1 formed as a rectangular casing having a rectangular opening 1a in the under-part. The reflection board 2 includes a lamp 3 of straight tube type, and at the two ends of this lamp 3, sockets 4 are installed for holding the lamp 3 in electric connections. A stabilizer 5 is installed on the surface opposing to the opening 1a of the luminaire body 1. The reflection board 2 is supported pivotally rotatable around the center of the lamp 3 as a rotary shaft. The reflection board 2, lamp 3, and socket 4 are arranged so that the rotary shaft is positioned inside the luminaire body 1 so that the board 2 does not protrude from the body 1 when the board 2 is rotated. A shield plate 6 is installed inclining from the open edge of the luminaire body 1 upward inside the luminaire body 1 and is positioned as tracing approximately the outside circumference of the turning track of the board 2 in such a way as covering it approximately.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device capable of adjusting light distribution.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open No. 4-351801 discloses a lighting device capable of adjusting light distribution. FIG. 5 is a schematic sectional view showing a lighting device according to a conventional example, and FIG. 6 is a schematic perspective view showing a lighting device according to a conventional example. In this lighting apparatus, a parabolic curved reflecting plate 9 is attached to an apparatus main body 1 having an opening 1a on a lower surface, and the reflecting plate 9 includes a straight tube lamp 3 therein. A reflector receiving portion 10 is provided on one side of the opening end of the instrument body 1, and a holding bracket 11 is provided on the other side, and one side of the reflector 9 is placed on the reflector receiving portion 10.
The other side is detachably held by the holding bracket 11.
In addition, a ballast 5 is mounted inside the instrument body 1.

In this luminaire, the light distribution direction is adjusted by changing the light irradiation direction by rotating the other side with the one side of the reflector 9 located on the reflector receiver 10 as a fulcrum. Do.

[0004]

However, in the lighting fixture having the above-described structure, as shown in FIG. 7, when the reflecting plate 9 is rotated, the distance between the reflecting plate 9 and the fixture body 1 is increased. In such a case, there is a problem that a gap is formed and an electric component is exposed.

[0005] The present invention has been made in view of the above points, and it is an object of the present invention to provide a lighting apparatus capable of preventing exposure of electric components when adjusting light distribution. It is in.

[0006]

According to the first aspect of the present invention,
A fixture body having an opening formed at the lower end, a socket for mounting a straight tube fluorescent lamp, and a reflection surface facing the straight tube fluorescent lamp mounted on the socket, and formed inward from an opening of the fixture body. A reflecting plate arranged downwardly in a groove shape, wherein the reflecting plate is rotatably supported on a shaft, and comprises a shielding plate inclined upward from the opening edge, wherein the shielding plate is configured to reflect the reflection light. It is characterized by substantially surrounding the outer periphery of the plate.

According to a second aspect of the present invention, in the lighting apparatus according to the first aspect, an optical design is applied to the reflector so that the reflected light is collected.

According to a third aspect of the present invention, in the luminaire according to the first or second aspect, the shielding plate is processed so as to eliminate irregular reflection of light.

According to a fourth aspect of the present invention, in the lighting apparatus according to any one of the first to third aspects, a reflecting member that reflects light is used as the shielding plate. .

According to a fifth aspect of the present invention, in the lighting fixture according to any one of the first to fourth aspects, when the reflector is rotated, the reflector does not protrude from the fixture body. It is characterized by having.

According to a sixth aspect of the present invention, in the lighting fixture of the fifth aspect, the reflection plate is configured not to protrude from the fixture main body, and the reflection plate is brought into contact with the shielding plate. It is assumed that.

According to a seventh aspect of the present invention, in the lighting fixture of the fifth aspect, the reflection plate has a function of holding an arbitrary angle as the reflection plate does not protrude from the fixture body. It is a feature.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are schematic cross-sectional views illustrating a lighting device according to an embodiment of the present invention. FIG. 1A is a schematic cross-sectional view illustrating a case where a reflector 2 is at a proper position, and FIG. FIG. 2 is a schematic cross-sectional view showing the position of the reflector 2 when the direction is changed, and FIG. 2 is a schematic perspective view of the lighting fixture according to the present embodiment. The lighting fixture according to the present embodiment has a parabolic reflector plate 2 inside a fixture body 1 formed in a rectangular housing shape having a rectangular opening 1a below.
Is attached.

The reflector 2 includes a lamp 3 of a straight tube type, and sockets 4 for connecting and holding the lamp 3 are provided at both ends of the lamp 3. In addition, the instrument body 1 has an opening 1
The ballast 5 is disposed on the opposing surface of FIG.

Here, the reflecting plate 2 is rotatably supported about the center of the lamp 3 as a rotation axis. Also, the reflection plate 2
The reflector 2, the lamp 3, and the socket 4 are arranged so that the rotation axis is located inside the instrument body 1 so that the reflector 2 does not project from the instrument body 1 when the is rotated. I have.

A shielding plate 6 is provided which is inclined from an opening edge of the instrument body 1 to an upper inside of the instrument body 1.

Here, in the present embodiment, the shielding plate 6 is disposed so as to cover substantially along the outer circumference of the rotation orbit of the reflecting plate 2.

Accordingly, in the present embodiment, the gap formed between the reflector 2 and the instrument body 1 when the reflector 2 is rotated can be closed by the shielding plate 6, and the electric parts Exposure can be prevented.

In the present embodiment, the shielding plate 6
Is provided for the purpose of closing the gap formed between the reflection plate 2 and the instrument body 1, for example, as shown in FIG.
As an alternative, a reflection plate 7 as a reflection member may be provided.

In the case of the luminaire shown in FIG. 1, the light from the lamp 3 may be blocked by the shielding plate 6 depending on the angle at which the reflecting plate 2 is rotated. Here, if the reflecting plate 7 is used as the shielding plate 6, the lamp 3
Light can be reflected, and light can be emitted efficiently.

Further, if the reflector 7 is formed so as to prevent irregular reflection of light, for example, the light reflected by the reflector 7 is constantly reflected downward, it is not necessary to feel unpleasant light. .

If the reflector 2 is designed to have an optical design such as a parabolic shape, light can be more efficiently irradiated.

If the reflecting plate 2 does not protrude from the instrument body 1 when the reflecting plate 2 is rotated, the appearance is not impaired. Here, as a configuration in which the reflection plate 2 does not protrude from the appliance main body 1, for example, the reflection plate 2 may be brought into contact with the shielding plate 6 or the reflection plate 7 before the reflection plate 2 protrudes from the appliance main body 1, 2 can be held at an arbitrary angle, or a projection is provided at the open end of the instrument body 1 and extends toward the center of the opening. There are various configurations such as prevention.

Further, depending on the type of the lamp 3, the size of the appliance body 1 can be reduced, and in that case, it becomes difficult to route the electric wires inside the appliance body 1. Therefore, as shown in FIG. 4, if the wire connecting portion 8 of the terminal is made to be swingable, the wire is not routed.

[0025]

According to the first aspect of the present invention, there is provided an apparatus body having an opening formed at a lower end, a socket for mounting a straight tube fluorescent lamp, and a reflecting surface facing the straight tube fluorescent lamp mounted on the socket. And a reflector having a reflector disposed in a groove shape inward and downward from the opening of the fixture body, wherein the reflector is pivotally supported rotatably and upward from the opening edge. Since a shielding plate that is inclined is provided, and the shielding plate substantially surrounds the outer periphery of the reflection plate, it is possible to provide a lighting device that can prevent exposure of electric components during light distribution adjustment.

According to a second aspect of the present invention, in the lighting fixture according to the first aspect, the reflecting plate is optically designed so that the reflected light is condensed. In addition, light can be efficiently emitted.

According to a third aspect of the present invention, in the lighting fixture of the first or second aspect, the shielding plate is processed so as to eliminate irregular reflection of light. In addition to the effect, you do not feel unpleasant light.

According to a fourth aspect of the present invention, in the lighting apparatus according to any one of the first to third aspects, a reflecting member that reflects light is used as the shielding plate.
In addition to the effects of the invention according to any one of claims 3 to 3,
Further, light can be irradiated more efficiently.

According to a fifth aspect of the present invention, in the lighting apparatus according to any one of the first to fourth aspects, when the reflecting plate is rotated, the reflecting plate is rotated. Is constructed so as not to protrude from the device main body, so that in addition to the effects of the invention according to any one of claims 1 to 4, the appearance is not impaired.

[Brief description of the drawings]

FIGS. 1A and 1B are schematic cross-sectional views illustrating a lighting device according to an embodiment of the present invention, in which FIG. 1A is a schematic cross-sectional view illustrating a case where a reflector is at a regular position, and FIG. FIG. 7 is a schematic cross-sectional view showing the position of the reflector when changing the position.

FIG. 2 is a schematic perspective view of a lighting device according to the present embodiment.

FIG. 3 is a schematic sectional view of a lighting device according to another embodiment of the present invention.

FIG. 4 is a schematic perspective view showing a wire connection portion of a lighting fixture according to another embodiment of the present invention.

FIG. 5 is a schematic sectional view showing a lighting device according to a conventional example.

FIG. 6 is a schematic perspective view showing a lighting apparatus according to a conventional example.

FIG. 7 is a schematic cross-sectional view showing a state where a reflecting plate of a lighting apparatus according to a conventional example is rotated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 1a Opening part 2 Reflecting plate 2a Extension part 3 Lamp 4 Socket 5 Ballast 6 Shielding plate 7 Reflecting plate 8 Electric wire connection part 9 Reflecting plate 10 Reflecting plate receiving part 11 Bracket

Claims (7)

[Claims] An appliance body having an opening formed at a lower end thereof, a socket for mounting a straight tube fluorescent lamp, and a reflection surface facing the straight tube fluorescent lamp mounted on the socket, wherein the opening of the appliance body is formed. A reflector disposed in a groove shape inwardly downward from the portion, wherein the reflector is pivotally supported rotatably, and comprises a shielding plate inclined upward from the opening edge; A lighting device, wherein a shielding plate substantially surrounds an outer periphery of the reflection plate. 2. The lighting apparatus according to claim 1, wherein the reflector is optically designed so that the reflected light is collected. 3. The lighting apparatus according to claim 1, wherein the shielding plate is processed so as to eliminate irregular reflection of light. 4. The lighting apparatus according to claim 1, wherein a reflection member that reflects light is used as the shielding plate. 5. The lighting fixture according to claim 1, wherein the reflector does not protrude from the fixture body when the reflector is rotated. 6. The lighting apparatus according to claim 5, wherein the reflection plate is configured so that the reflection plate does not protrude from the fixture main body, and the reflection plate is brought into contact with the shielding plate. 7. The lighting fixture according to claim 5, wherein the reflector does not protrude from the fixture body, and the reflector has a function of holding an arbitrary angle.