JPH06290615A - Luminaire - Google Patents

Abstract

(57) [Summary] [Purpose] To make the shade of the lighting fixtures evenly bright and improve the product's marketability. [Structure] The lamp sockets 16 are attached to the lower surface of the chassis 15 near both ends, and a straight tube type fluorescent lamp 18 is mounted between the lamp sockets 16. A shade 20 having a larger planar shape than the chassis 15 is attached to the lower side of the chassis 15. The shade 20 is composed of a substantially box-shaped translucent body 21, and reflection side plates 31 attached to both ends of an opening 27 on the upper side of the translucent body 21. The reflection side plate 31 is arranged outside and above the fluorescent lamp 18, and the lower surface 32a is white-painted with high reflectance. A light beam emitted from the vicinity of the end portion of the fluorescent lamp 18 toward the upper side is reflected by the lower surface portion 32a of the reflection side plate 31 and is applied to the peripheral portions 23 at both end portions of the translucent body 21. [Effect] Sade 20 located near the end of fluorescent lamp 18
The brightness of the peripheral portion 23 of can be supplemented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a luminaire provided with a shade having a plane shape larger than that of a light source.

[0002]

2. Description of the Related Art Conventionally, for example, a lighting fixture 1 shown in FIG. 5 is known. The lighting fixture 1 has a substantially plate-shaped chassis 3 attached to a ceiling surface 2, and a straight tube type fluorescent lamp 5 is attached to a lamp socket 4 attached to a lower side portion of the chassis 3. . Furthermore, this chassis 3
A shade 6 made of synthetic resin having translucency such as acrylic is detachably attached to the.

The shade 6 is formed in a substantially box shape having a plane shape larger than that of the chassis 3, covers the front side of the fluorescent lamp 5, and surrounds the area where the fluorescent lamp 5 is not located from the front side to the back side. It is designed to cover the sides.

[0004]

SUMMARY OF THE INVENTION In the above conventional configuration,
It is difficult for the light rays emitted from the fluorescent lamp 5 to directly reach the peripheral portion 7 of the shade 6 located near the end of the fluorescent lamp 5 and outside the fluorescent lamp 5, and
The light beam emitted toward the back side of the peripheral portion 7 of the shade 6 passes through the shade 6 toward the ceiling surface 2. Therefore, there is a problem that the peripheral portion 7 of the shade 6 becomes dim and light and dark are generated between the peripheral portion 7 and the portion having the chassis 3, and the commercial property of the lighting fixture 1 is deteriorated. Further, when the peripheral portion 7 of the shade 6 is dim, there is a problem that the user may feel distrust of whether the fluorescent lamp 5 is out of order.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a luminaire having a high commercial value and capable of uniformly brightening a shade.

[0006]

A lighting fixture of the present invention is a lighting fixture comprising a fixture main body to which a light source is mounted, and a shade for covering the front side of the light source and the periphery where the light source is not located. Further, there is provided a reflecting means which is located on the back side of the periphery where the light source is not located and which reflects the light beam emitted from the light source toward the front side of the light source.

[0007]

In the luminaire of the present invention, the light beam emitted from the light source to the back side of the periphery is directed toward the front side of the light source by the reflecting means provided on the shade located on the back side of the periphery where the light source is not located. It is reflected and radiated to the shade that covers the surroundings where the light source is not located.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the lighting equipment of the present invention will be described below with reference to the drawings.

In FIG. 1 to FIG. 3, reference numeral 11 denotes a lighting fixture, and this lighting fixture 11 constitutes a ceiling-mounted lighting fixture 11 used in, for example, a general home or a store.

The lighting fixture 11 has a fixture main body 14 directly attached to the ceiling surface 12, and the fixture main body 14 is
The chassis 15 has a substantially rectangular plate shape, and a lamp socket 16 and a lighting device 17 attached to the lower surface of the chassis 15 and the like.

The chassis 15 has a flange portion 15a formed by bending the peripheral portion downward. Further, a plurality of lamp sockets 16 are located near both ends of the chassis 15 in the longitudinal direction, and a plurality of lamp sockets 16 are installed facing each other, and a straight tube fluorescent lamp 18 as a light source is mounted between the lamp sockets 16. ing. Furthermore, the lighting device 17
Is composed of a ballast and the like, and is attached near the center of the chassis 15.

On the lower side of the chassis 15, the instrument body 14
A substantially box-shaped shade 20 is attached so as to cover the.

As shown in FIGS. 1 to 4, the shade 20 has a translucent light-transmitting body 21 formed in a substantially box-like shape with a synthetic resin such as milky white acrylic or styrene. , The planar shape of this translucent body 21 is the chassis 15
Is formed to be larger than the planar shape of. The translucent body 21 is located below the fluorescent lamp 18 and
Has a front face portion 22 that covers the front face side, and a peripheral portion 23 that covers the front face side around the fluorescent lamp 18 extends from the peripheral portion of the front face portion 22 in a state of being inclined upward.

A substantially horizontal upper surface portion 25 located above the fluorescent lamp 18 is extended from the upper edge of the peripheral portion 23 through a smoothly curved curved surface portion 24, and the upper surface portion 25 is formed.
A rectangular opening 27 is formed in the chassis 15, and the chassis 15 is extended from both end edges along the longitudinal direction of the opening 27.
A pair of flanges 28 on both sides, which fit inside, are erected upward.

On the surface side of the peripheral portion 23 of the translucent body 21,
The decorative groove 23a is formed in an annular shape.

Further, as shown in FIGS. 1, 2 and 4, reflecting side plates 31 as reflecting means are attached to both ends in the longitudinal direction of the opening 27 of the light transmitting body 21, respectively. These reflection side plates 31 and a horizontal reflection plate portion 32 formed in a substantially half-moon shape according to the shape of the end of the opening 27,
It has a vertical support plate portion 33 which is erected from the inner end of the reflection plate portion 32. Further, in these reflection side plates 31, a plurality of portions of the reflection plate portion 32 are provided at the upper surface portion 25 of the translucent body 21.
And the bent portions 33a at both ends of the support plate 33 are respectively screwed to the flange 28.
It is fixed at 35 and fixed to the translucent body 21.

The lower surface portion 32a of each reflection plate portion 32 is arranged above the fluorescent lamp 18 and opposite to both ends of the peripheral portion 23 of the translucent body 21, and is arranged to emit light. A white coating that does not pass through and has a high reflectance is provided, and a light beam emitted from the vicinity of the end of the fluorescent lamp 18 is reflected toward the peripheral portion 23 of the translucent body 21.

Further, at a plurality of positions of the translucent body 21, fittings 38 made of so-called V springs are engaged and mounted, and these fittings 38 are respectively attached to holding portions (not shown) provided on the chassis 15. By being locked, the shade 20 is detachably attached to the chassis 15.

According to the lighting equipment 11 of this embodiment,
The light rays emitted from each fluorescent lamp 18 to the front side are shaded.
The front part 22 and a part of the peripheral part 23 of the translucent body 21 of 20 are directly irradiated, and the interior of the room is illuminated in a state of being diffused by the translucent body 21.

A light beam emitted from the vicinity of the end of the fluorescent lamp 18 toward the upper side is located on the upper side of the fluorescent lamp 18 and is provided on the shade 20 so as to face the peripheral portion 23 of the translucent body 21. The reflected light is reflected by the lower surface portion 32a of the reflecting plate portion 32 and delivered to the peripheral portion 23 of the translucent body 21.

Therefore, the reflected light compensates for the brightness of the peripheral portion 23, which tends to be darker than the front portion 22 of the translucent body 21, and which is deviated toward both ends in the longitudinal direction of each fluorescent lamp 18. Therefore, the shade portion of the shade 20 is eliminated, and the brightness of the shade 20 can be made uniform, so that the merchandises of the lighting fixture 11 can be improved.

Further, since the reflection side plate 31 constitutes the shade 20 while being integrally attached to the translucent body 21, by attaching the shade 20 to the instrument main body 14, the reflection side plate 31 is formed. Can be easily placed in an appropriate position with good workability.

The shade 20 of this embodiment is constructed by assembling the translucent body 21 and the reflecting side plate 31, and the reflecting means is painted white on the lower surface 32a of the reflecting plate portion 32 of the reflecting side plate 31. However, the reflecting means is formed by forming a white coating having a high reflectance on the translucent body 21.
21 can be integrally molded, or reflective side plate 31
It can also be formed of a material having a high reflectance such as a white color steel plate.

[0024]

According to the luminaire of the present invention, the light emitted from the light source to the back side is reflected by the reflection means provided on the shade located on the back side of the periphery where the light source is not located, and the front side of the light source. It is reflected in the direction and irradiates the shade that covers the surroundings where the light source is not located. Therefore, it is possible to compensate for the brightness of the shade that covers the surroundings, which tends to be darker than the part that covers the front side of the light source, and to make the brightness of the shade uniform and improve the commercialability of the lighting fixture. it can.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a partially cutaway perspective view showing a disassembled state of the above lighting fixture.

FIG. 3 is an exploded perspective view of a part of the same shade.

FIG. 4 is a perspective view of the same lighting fixture.

FIG. 5 is a partially cutaway perspective view showing a conventional lighting fixture.

[Explanation of symbols]

 11 Lighting fixture 14 Fixture body 18 Fluorescent lamp as a light source 20 Sed 31 Reflective side plate as a reflection means

Claims (1)

[Claims] 1. A lighting fixture comprising: a main body of a fixture to which a light source is attached; and a shade covering the front side of the light source and the periphery where the light source is not located, wherein the shade has a back side around the periphery where the light source is not located. A lighting device, characterized in that a reflecting means for reflecting a light beam emitted from the light source toward a front side of the light source is provided at the position.