JPH034403A - Embedded type fluorescent lighting apparatus - Google Patents

Abstract

PURPOSE:To easily obtain desired light distribution without visible darkness in a specific portion of an illuminated area and eliminate glare by disposing a side cover having in the inside a fluorescent lamp in an elongated-shaped apparatus body with a light source located outside the opening of a ceiling surface supporting the lighting apparatus. CONSTITUTION:A side cover 13 supported with a slide piece 14 is disposed on a lateral support member 12 disposed at an apparatus body 11. A fluorescent lamp 16 is disposed in the side cover 13. A stabilizer 15 is secured to the outer end inside of the apparatus body 11. The light source 16 is located outside the opening of the ceiling surface supporting the lighting apparatus 11. Illuminatiion light from the fluorescent lamp 16 is directed to a reflection plate 17, reflected with it, and directed to a surface to be illuminated. This provides a large opening for the light passage, and easily attains required light distribution. Because the fluorescent lamp 16 is not covered with a shade, no darkness is visible in a specific portion of the surface to be illuminated and glare is eliminated.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in recessed volume light luminaires.

[Conventional technology]

Conventionally, fluorescent lighting fixtures that are embedded and supported in the ceiling of an office, etc., have a lighting fixture main body 1 embedded in the inner surface of the ceiling, and are stably mounted above the end of the lighting fixture main body 1, as shown in FIG. 3, for example. The fixture 2 is fixed, and a reflector 3 having a curved surface is attached inside the lighting fixture main body 1.

In addition, a fluorescent lamp socket 4 is arranged at one end of the reflector 3,
The fluorescent lamp socket 4 is equipped with a fluorescent lamp. Further, in some offices where office automation equipment is installed, the lower surface of the fluorescent lamp is covered with a light shielding plate 5 in order to prevent glare.

[Problem to be Solved by the Invention 3] According to the recessed quantity light lighting device having the above-described structure, a light shielding plate 5 is provided at one end of the reflector 3 attached to the lighting device body 1 to cover the fluorescent lamp. Therefore, there is a drawback that the light shielding plate 5 is darkly visible.

Furthermore, since the fluorescent lamp and the light shielding plate 5 are located inside the lighting fixture main body 1, there is a drawback that the opening through which light passes is narrow.

Furthermore, if the opening of the lighting fixture body 1 through which the light passes is narrow, it becomes difficult to illuminate the irradiated surface with the desired light distribution, and in order to illuminate with the desired light distribution, the entire lighting fixture must be made larger. There is.

[Purpose of the invention]

The present invention has been devised in view of the above points, and has a relatively simple structure with a large opening through which light passes, can obtain a desired light distribution, and is capable of preventing the lower surface of a lighting device from being visually perceived as dark. The purpose of the present invention is to provide a recessed volume light lighting fixture that does not cause any damage.

[Means to accomplish the task]

The present invention has the following configuration in order to solve the above problems. Lateral supports are provided at predetermined intervals on a long instrument body.

Further, the support body is provided with a side cover supported by a slide fitting.

Furthermore, a stabilizer is fixed inside the outer end of the device body.

A fluorescent lamp is installed inside the side cover, and the light source is located outside the opening in the ceiling that supports the lighting equipment.

[Function] According to the recessed volume light lighting fixture having the structure described above, a side cover with a fluorescent lamp inside is provided for the elongated fixture body, and the light source is located on the ceiling surface that supports the lighting fixture. Since the fluorescent lamp is located outside the opening, the opening through which the light passes is large, making it easy to obtain the desired light distribution.Furthermore, since the fluorescent lamp is not covered with a light shielding plate, it can be used in specific areas. will not be seen in the dark and can further reduce glare.

〔Example〕

The invention will now be explained with reference to FIGS. 1 and 2. 1st
In the figure, 11 is a long instrument body.

Reference numeral 12 denotes horizontal supports fixed to the instrument body 11 at a predetermined interval, and when the length of the instrument body 11 is 125 am, two lateral supports are provided as shown in FIG. 1. . 1
3 is a side cover configured to be able to move forward and backward with respect to the horizontal support 12; 14 is a slide fitting for moving the side cover 13 along the horizontal support 12; 15 is the instrument main body 1;
1 is a stabilizer fixed to the bottom surface of 1, 16 is a side cover 1
This is a straight tube type fluorescent lamp which is mounted inside the ceiling and is located outside of the opening in the ceiling surface that supports the lighting equipment. Reference numeral 17 represents a reflector, and reference numeral 18 represents a frame that is combined with the instrument main body 11.

According to the recessed quantity light lighting fixture having the same structure, the irradiated light from the fluorescent lamp is projected onto the reflecting plate, and is projected from the reflecting surface onto the irradiated surface. In this case, the fluorescent lamp is located outside the opening.

The opening through which the light passes is large, making it easy to obtain the desired light distribution, and since the fluorescent lamp is not covered with a light-shielding plate, specific areas will not be seen as dark, and there will be no glare. be cut.

〔Effect of the invention〕

As described above, in the present invention, a side cover supported by a slide fitting is provided for the horizontal support provided on the instrument body, a fluorescent lamp is attached to the inside of the side cover, and a ballast is mounted on the instrument body. The outside end is fixed inside, and the light source is located outside the opening in the ceiling that supports the lighting fixture.

The opening of the lighting fixture can be configured to be large, the efficiency of the fixture is increased, glare is cut, and since the fluorescent lamp is not covered with a light-shielding plate, it has the unique effect that certain parts are not seen as dark.

[Brief explanation of drawings]

FIG. 1 is a side view of a recessed quantity light luminaire according to the present invention;
FIG. 2 is a partially exploded perspective view of a recessed quantity light luminaire according to the present invention, and FIG. 3 is a side view of a conventional recessed quantity light luminaire. 11... Instrument body 12... Lateral support 13... Side cover 15... Stabilizer 16... Fluorescent lamp 17... Reflector plate Fig. 2 3 Doo

Claims (1)

[Claims] 1. A long instrument main body is provided with lateral supports at predetermined intervals, and a side cover supported by a slide fitting is provided for the lateral supports, and the inside of the outer end of the instrument main body is A fluorescent lighting fixture, characterized in that a ballast is fixed to the side cover, a fluorescent lamp is mounted inside a side cover, and the fluorescent lamp is located outside an opening in a ceiling surface that supports the lighting fixture.