JPS6310567Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement in a lighting device in which a plurality of lighting devices are arranged on the same plane such as a ceiling surface to illuminate a wide area.

[Conventional technology]

Recently, with the introduction of elongated lamps such as HID lamps into general indoor spaces, in order to cope with places with deep ceilings and relatively low ceiling heights, the lamp axis has been made horizontal and wide light distribution has been adopted. Rectangular lighting fixtures that use reflective plates and louvers to improve light distribution are now appearing. In this case, although light distribution control can be performed satisfactorily in the direction perpendicular to the lamp axis, as shown in Figure 4, the light emission length is long in the direction parallel to the lamp axis, and there are restrictions due to the shape of the lamp socket and light source. There are many cases where it is difficult to be free.

On the other hand, when multiple lighting fixtures are usually installed on a ceiling surface, the lighting fixtures are required to be arranged in the same "aligned" manner both vertically and horizontally. Therefore, when arranging multiple rectangular lighting fixtures as described above on a ceiling surface, etc., consider the light distribution, and as shown in FIG. axis
It is conceivable to configure a lighting fixture by arranging the -X's so that they are perpendicular to each other. In addition, 2,3
indicate the horizontal and vertical sides of the lighting fixture, respectively.

[Problem that the invention attempts to solve]

However, the arrangement of rectangular lighting fixtures as described above has the problem of complicating construction work, such as how to assemble the ceiling base. In other words, when a lighting fixture is embedded in a ceiling, etc., a reinforcing material is provided around the opening in the ceiling, but because the long and short sides of adjacent lighting fixtures do not match, it is not possible to reinforce the periphery of each opening through a common reinforcing material. However, problems arise such as the momentum structure becomes complicated and a large amount of material is used.

The present invention was developed to solve these problems with conventional lighting equipment, and provides a lighting device that can supplement light distribution without complicating the structure of the mounting surface such as the ceiling. The purpose is to

[Means for solving problems]

The lighting device according to the present invention has a plurality of lighting fixtures each having a square planar outline shape and having lamp axes arranged parallel to one side at predetermined intervals, and the lamp axes of adjacent lighting fixtures being alternately orthogonal to each other. It is arranged so that

[Effect]

In this invention, since the planar outer shape of the lighting fixture is square, the dimensions of all the cuts in the ceiling etc. can be made the same, and therefore the cut portions (openings)
Since the reinforcing material provided on the periphery can be used through each opening, the ceiling structure does not become complicated. Furthermore, since each lighting fixture acts to compensate for each other's weak points in light distribution, there is no imbalance in lighting effects.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a lighting device whose planar outline shape is a square. If one side is 2 and the other side is 3, the axis X-X' of the lamp 4 is one side. 2 are arranged in parallel. A cross section Y-Y' of the lighting fixture 1 in a direction perpendicular to the lamp axis X-X' is light distribution controlled by a mirror curved reflector 5 whose target is the light emission cross-section circle 41 of the lamp. on the other hand,
In the cross section X-X' in the lamp axis direction, the light emitting part 42 of the lamp is also larger than the light emitting cross section circle 41, and the lamp socket 6 is limited by the external shape of the light source 4. Considering the convenience of construction, the reflector plate 7 is The shape of is kept simple. As a result, the light distribution curve has a shape similar to that shown in FIG. Solid lines indicate a direction perpendicular to the lamp axis, and dotted lines indicate a direction parallel to the lamp axis. As shown in FIG. 1, the lighting fixtures 1 are arranged alternately at equal intervals vertically and horizontally so that the lamp axes X-X' are perpendicular to each other on a plane.

FIG. 5 shows, as another embodiment of the present invention, an illumination device using a multiple fluorescent lamp fixture equipped with three lamps 4. In this embodiment, the same effect as shown in FIG. 1 can be expected, and even if the number of lamps is increased, the outer shape of the lighting fixture 1 can be kept square, and the lamp axis If a lighting fixture that is parallel to one side of the fixture can be obtained, the effects of the present invention can be achieved.

[Effect of idea]

As explained above, the present invention consists of a plurality of lighting fixtures each having a square planar outline and each having a lamp mounted on one side of the lighting fixture so that the lamp axis is parallel to the other lighting fixtures, which are arranged adjacent to each other at a predetermined interval. The lamp axes of the lighting fixtures are arranged so that they are perpendicular to each other, so they appear aligned, and the ceiling structure is not affected by the direction of the lamps, making ceiling construction easy and allowing the lamps to be placed over a wide illuminated surface. This has the effect of preventing uneven lighting effects due to

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
Figures 3 and 3 are cross-sectional views of the main parts of the lighting equipment used in the present invention in a direction perpendicular to the lamp axis and parallel to the lamp axis, respectively, and Fig. 4 is a cross-sectional view of the main parts of the lighting equipment used in the present invention in the direction perpendicular to the lamp axis. FIG. 5 is a plan view of a lighting device showing another embodiment of the present invention, and FIG. 6 is a plan view of a conventional lighting device. In the figure, 2 and 3 are the sides of the lighting fixture, 4 is the lamp, and X-X' is the lamp axis. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A device in which a plurality of lighting fixtures each equipped with one or more lamps each having a longitudinal axis are arranged on the same plane at equal intervals, and the planar outline of the lighting fixtures is square, and each of the lamps is A lighting device characterized in that the axes of the lighting devices are arranged parallel to one side of the lighting device, and the lighting devices are arranged such that the lamps in adjacent lighting devices and the lamp axes are alternately orthogonal to each other.