JPS5878304A - Multi-lamp lighting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-lamp luminaire using a straight tube fluorescent lamp, and a multi-lamp illumination apparatus equipped with a reflector and a diffuser light plate.

The area within the range of approximately 30° relative to the line of sight of the human eye has the characteristic of causing special glare.Flare cut processing to deal with this point is usually・−
, the lower edge of the reflector that surrounds the outside of J″
This is done by using VC to prevent it from entering the P-lisi.
When the lighting equipment is a multi-lamp 41"A type, a 41"+lfl ring is installed between each run.An example of this is shown in Figure 1.
1? The main body has a circular shape, 121 has a diameter of 131, (71 is the ceiling surface, and there are two walls, 7j +: 1
+ lights are arranged in parallel. Reference numeral 141 denotes a reflector, which is an inter-lamp reflector 1f arranged in one of the runs 1131.
It is provided integrally with this reflecting plate 14).

The edge and ridge of the reflector +41.

The F edge of the reflector plate 61 is located on the F side of the isune moshizu 13+, and is treated with agate treatment (r? ”r
This is what has become. By the way, such a multi-scorching light 1
When the top opening of the lunar instrument is covered with a flat diffuser plate 111+1 like a prism cover as shown in Fig. 2,
Depending on the optotype direction, the brightness differs between the surface of the diffuser light plate II (11) and the lower part of the inter-lamp reflector 151, causing a sense of discomfort.
This phenomenon is caused by the presence of , and is particularly noticeable when the run reflection plate 151 has a V-shaped cross section.

The present invention has been developed in view of these points, and even though there is a reflector between the bows and the lower edge of which is located in the F direction rather than the run, the F-plane aperture? To provide a multi-lamp IJA device in which the brightness of a diffused light plate is uniform over the entire surface and does not give a sense of incongruity.

To explain the present invention below, the present invention comprises at least two
The straight tube lamps of the light are arranged in parallel, and reflectors are provided on the outer side of the group Y and on the F side, and reflectors are provided between the lamps parallel to the lamps, and on the outer side of the reflector. In a lighting fixture in which the lower edge of the run reflector and the lower edge of the run reflector are located below the lamp, the lower edge and the lower edge of the run reflector are located in the F direction relative to the run reflector. The lamp is characterized in that the covering diffuser plate is bent just below the lower edge of the lamp reflecting plate, and this configuration achieves the above object.

Next, based on the illustrated embodiment, the following will be explained in detail:
・In Figures 3 and below, the turtle 11 is the main unit that houses the anti-exposure device 161, and has two pairs of sockets 1- and 2+i on the F side, and a straight fluorescent lamp 1 that is attached to the socket 21.
31 are arranged in parallel. The anti-I/Nfnl surrounds the F side and the outer side of these 'J''j131131, and is housed on the lower surface of the main building 111.L of the reflector plate 14)
The lower edge of the lljl piece - 1h in the F direction from Uyzu 131
are doing. Ranzu (Ranzumon 41 Afi 1fil i, Ra-J ′j+
The cross section at a curve perpendicular to the axial direction of 31 is V-shaped, and the lower edge thereof is lower than the run 131 and is arranged parallel to the run 131.

Then, a diffuser light device (10
1 is the locking edge of both i11+1 edges/Il1 reflection plate 1
41] It is hung by being locked by the locking fitting 121, and is bent into a substantially V shape so that the bent mt131 is located at right F of the edge of the reflective plate 151 between the runs. has been done. For this reason, even when this lighting fixture is viewed from the diagonal direction F, the diffuser light plate 1101 is not the same as the run reflection plate 1.
Lower part 1 of 51, that is, folding line tta+t? The average brightness of the surfaces of the left and right halves in the figure, which are the boundaries, is equal, and the diffused light g
The entire surface of II(H) appears uniform.

As described above, the entire surface of the VC of the present invention, and therefore the diffuser light plate, has uniform brightness despite the presence of the lamp reflection plate, and does not cause any discomfort. be.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the conventional example, Fig. 2 is a partial sectional view of the same E,
FIG. 3 is a fracture pressure surface diagram of an embodiment of the present invention, and FIG. 4 is a partial cross-sectional view in direction E, where 131 is a lamp, 141 is a reflector,
16) indicates a lamp reflection plate, and +101 indicates a diffuser light plate. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Claims] , 11 At least two straight pipe lamps or illuminators arranged in parallel, with reflective plates arranged outside and above the stiff group. The F edges of the reflectors are positioned below the lamps, and between each lamp there is a run reflector whose lower edge is located below the run parallel to the lamps. A multi-light luminaire characterized in that a diffuser plate located below the reflector plate and having a bottom surface is bent under the plane of the lower edge of the reflector plate.