JPH065008U - lighting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lighting device capable of illuminating a specific region with high illuminance and further obtaining a well-balanced lighting effect. [Structure] An instrument in which a plurality of straight tube type light sources are arranged is provided with two kinds of reflecting shades for collecting light and for scattering. In this structure, the condensing reflector 3 can illuminate a specific area with high illuminance, and the diffuse reflector 4 eliminates the deterioration of the overall uniformity of the illumination due to the converging. Can be achieved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention relates to a lighting device for factories and indoor equipment, and is used for lighting in, for example, a painting line.

[0002]

[Prior art]

 In many lighting fixtures using a fluorescent lamp as a light source, a reflective shade is arranged on the back side of the lamp, and a white flat plate is generally used as the reflective shade. In addition, there is a structure that illuminates a specific area with high illuminance by using a reflective shade having a high reflectance to enhance the light-collecting property.

[0003]

[Problems to be solved by the device]

 By the way, in the coating line, the current situation is that part of the manual coating work remains. Therefore, in such a place, a method of arranging a lighting device having a light condensing property to illuminate the irradiation target, which is the work target, with high illuminance is used. The lighting of the space other than the body becomes dark, and the environment is not good as a whole, and workability in places other than the irradiated body is poor.

As a countermeasure, a lighting fixture for total lighting may be separately installed, but a new problem arises in terms of the equipment and initial cost such as installation work cost and running cost.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to illuminate a specific area with high illuminance and to obtain an evenly balanced lighting effect. The purpose is to provide a lighting device that can.

[0006]

[Means for Solving the Problems]

 A structure for achieving the above object will be described with reference to FIG. 1 corresponding to an embodiment. The present invention has a structure in which a plurality of straight tube type light sources 2a ... 2e are arranged in parallel with each other. , A lighting device mounted on a wall or a ceiling and used to direct light from a predetermined number of light sources 2a, 2b, 2c out of a group of straight tube type light sources 2a. A condensing reflection shade 3 for reflecting light toward the light source is disposed, and a diffusion reflection shade 4 for reflecting light from each of the light sources 2d and 2e in various directions is provided on the back side of the light sources 2d and 2e. Is characterized by being provided.

[0007]

[Action]

 The condensing reflector 3 can illuminate a specific area with high illuminance, and the reduction in the overall uniformity of the illumination due to the converging is eliminated by the diffusing reflector 4.

[0008]

【Example】

 FIG. 1 is a view showing the structure of an embodiment of the present invention, in which (a) and (b) are a longitudinal sectional view and an external perspective view, respectively.

A mounting flange 11 is provided on the front side of the instrument body 1 for attaching the entire instrument to a wall or ceiling. A front cover 12 made of transparent glass and having a structure that can be opened and closed is attached to the front side of the instrument body 11.

The instrument main body 1 has a structure in which five straight tube fluorescent lamps 2a, 2e are mounted, and the lower three fluorescent lamps 2a, 2b and 2c are mounted at the mounting positions. The condensing reflection shade 3 is arranged on the rear side of the corresponding portion, and the diffusion reflection shade 4 is arranged on the rear side of the portion corresponding to the mounting positions of the remaining fluorescent lamps 2d and 2e.

The light-collecting reflector 3 is a light-reflecting reflector having a wavy vertical cross-section and reflects light from the three fluorescent lamps 2a, 2b, and 2c, respectively, in a diagonally forward and downward direction. To do. The reflectance of the light-collecting reflective shade 3 is increased to about 90% by, for example, attaching a silver vapor deposition sheet.

On the other hand, the diffusing reflection shade 4 is a white flat plate similar to that generally used for lighting equipment such as offices, and directs light from the two fluorescent lamps 2d and 2e in various directions. Diffuse reflection. The reflectance is about 60 to 65%.

In the embodiment of the present invention having the above structure, for example, as shown in FIG. 2, it is fitted into a recess 21 provided in a wall 20 such as a painting line, and is fixed to the wall 20 by a flange 11. In this mounted state, the radiated light from the three fluorescent lamps 2a, 2b, 2c on the lower side of the instrument body 1 is condensed obliquely downward and forward by the condensing reflection shade 3, so these fluorescent lamps 2a , 2b, 2c illuminate the area A1 shown in the figure with high illuminance. Therefore, the area around the irradiated object W that is the work target becomes brighter, and the workability is improved. Further, the lights from the upper two fluorescent lamps 2d and 2e are scattered in various directions by the diffusing reflection shade 4, so that the above three fluorescent lamps 2a, 2b and 2c cannot illuminate them. Area A2 can also be illuminated, which improves the overall environmental quality.

Although not described in the above embodiments, if explosion-proof specifications, etc. are obligatory at the equipment installation site such as a painting line, it is of course possible to adopt a structure conforming to those specifications. is there.

Further, in the above embodiment, an example in which the number of fluorescent lamps of the lighting fixture is set to 5 has been described, but the number of lamps is not limited to this, and the number of the lamps depends on the lighting condition of the fixture installation place. It may be appropriately selected in consideration of the above.

Further, as the condensing reflector, other than the shape shown in FIG. 1, for example, a concavity or an ellipsoidal shape may be used. In short, the shape and structure of this reflecting shade is not particularly limited as long as it has a light collecting property.

Furthermore, it goes without saying that the lighting equipment of the present invention can be applied to various lightings such as a general factory facility or an exhibition hall, in addition to a painting line.

[0018]

[Effect of device]

 As described above, according to the present invention, since two types of reflectors for collecting light and for scattering are provided in a device in which a plurality of straight-tube type light sources are arranged, a specific area can be illuminated with high illuminance. In addition to being able to illuminate, it is possible to ensure the uniformity of overall illumination. This improves the environment and workability of the space to be illuminated. Moreover, in order to obtain such a lighting effect, in the past, it was dealt with by increasing the number of lighting fixtures installed, but as a result of eliminating the need, it is possible to reduce the initial cost and running cost of the lighting equipment. You can

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, in which (a) and (b) are a longitudinal sectional view and an external perspective view, respectively.

FIG. 2 is a diagram showing a usage state of the embodiment of the present invention.

[Explanation of symbols]

 1 ... ・ Apparatus body 11 ・ ・ ・ ・ Mounting flange 12 ・ ・ ・ ・ ・ ・ Front cover 2a ・ ・ 2e ・ ・ ・ ・ Straight tube type fluorescent lamp 3 ・ ・ ・ ・ ・ ・ Reflecting shade 4 ... Diffuse reflective shade

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location G02B 5/02 B 9224-2K

Claims (1)

[Scope of utility model registration request] 1. A luminaire having a structure in which a plurality of straight tube type light sources are arranged in parallel to each other and used by being mounted on a wall or a ceiling, wherein a predetermined number of light sources of the straight tube type light source group are included. On the back side, a condensing reflection shade for reflecting the light from the light sources in a certain direction is arranged, and on the back side of the light sources other than those, various light from the light sources are arranged. A luminaire, characterized in that a diffusive reflector for reflecting in a direction is provided.