JPH06168605A - Indirect lighting device - Google Patents

Abstract

PURPOSE:To aim at the square indirect lighting or the indirect lighting corresponding to a square element by using a luminaire having a square outline and appropriate for the optical arrangement at a 1/4 circular corner. CONSTITUTION:Lower surface covers 110, 120 are arranged in a range of the lower surface outline, and the cover 110 covers a sector near an apex, and the cover 120 covers a part near the apex opposite to the apex covered with the cover 110, and a circular open window 130 is left between the covers 110, 120. A light source 140 of a compact fluorescent lamp having a high luminance is arranged in the top surface side of the cover 110. A reflecting plate 150 is arranged in the top surface side of the cover 110 and the window 131 to guide the light, which is emitted upward from the light source 140, to the window 130. A metal plate is formed integrally with the cover 120 and the reflecting plate 150, and locked with a frame body 160 by a screw 161, and the apex thereof is supported by a fitting 162. The square indirect lighting or the indirect lighting corresponding to a square element can be thereby realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention uses a plurality of single devices,
The present invention relates to an indirect illumination device having a square-shaped arrangement or an arrangement corresponding to the elements.

[0002]

2. Description of the Related Art An illuminating device in which a plurality of single appliances are arranged in a square shape or a square shape is known. Normally, a straight tube type elongated type direct lighting fixture is used. Arrange them in a square shape or a modified square shape with a part of the square shape missing. The four corners of the square-shape should be adjusted by offsetting each side so that there is no omission, or by arranging incandescent lamp system dedicated corner equipment.

[0003]

The above-mentioned conventional type is a so-called direct illumination type. Indirect lighting with a softer atmosphere is sometimes desired, but the square-shaped arrangement is not suitable for it. In particular, I cannot find an indirect lighting fixture suitable for the square-shaped corner arrangement. An object of the present invention is to provide an indirect lighting type single unit device suitable for corner arrangement, and to use it to realize indirect lighting of a square shape or an arrangement corresponding to the element.

[0004]

SUMMARY OF THE INVENTION In the present invention, a basic unitary tool is used which is angularly contoured and optically quarter-circle oriented for corner placement. Specifically, it is a basic unitary instrument having a lower surface contour of a rectangular shape, that is, a right-angled quadrangular shape, and the first lower surface cover and the second lower surface cover are arranged in the range of the lower surface contour. The first lower surface cover has a planar shape that covers the area in the vicinity of any one vertex of the right-angled quadrilateral in a fan shape. The second lower surface cover has a planar shape that covers the vicinity of another apex opposite to the apex and leaves an arc-shaped open window between itself and the first lower surface cover. The light source is arranged on the upper surface side of the first lower surface cover. Further, a reflector for guiding light emitted upward from the light source to the arc-shaped open window is arranged on the first lower surface cover and the upper surface side of the arc-shaped open window. Indirect light is projected into the room through the arc-shaped open window. In the present invention, a plurality of basic single tools for corner arrangement as described above are used. They are arranged on the ceiling so that the arcuate open windows are adjacent to each other. An example of the arrangement is such that only four basic single devices are used and they are adjacent to each other with their phases changed by 90 degrees to each other to obtain an arc-shaped open window having a round donut shape as a whole.

[0005]

The light emitted downward from the light source is blocked by the first lower surface cover and does not reach the floor surface of the room directly. The light emitted upward from the light source strikes the reflection plate and is reflected, and illuminates the room through the arc-shaped open window. This is a well-known form of indirect lighting. Considering the apex on the side of the first lower surface as a reference, the light distribution directivity in the diagonal direction from the reference apex to the opposite apex is shown. The main lighting area of the basic unit is 45 degrees to the left and right around the diagonal line, totaling 90 degrees.
The range of degrees. The direction of this light is a neutral direction in which neither the left or right other single device adjacent to the basic single device is loaded. In relation to the room, the direction is closer to the wall than the center of the room. This direction is compatible with the intent of a square layout. The outline of the basic single device is a right-angled quadrangle, and this is arranged according to the ceiling module unit and arranged in the usual manner. In view of the light distribution, it exhibits a so-called quarter circle characteristic, which is suitable for corner arrangement.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiments will be described below. 10
Reference numeral 0 is a basic single device for corner placement. Reference numeral 200 denotes an auxiliary single device for arranging the side corresponding to the side of the square shape. The basic single device 100 is always used, and the auxiliary single device 200 is used appropriately. First, the basic single device 100 will be described. Its lower surface has a rectangular or right-angled quadrangular shape. The first lower surface cover 110 and the second lower surface cover 120 are arranged in the range of the lower surface contour. The first lower surface cover 110 has a fan shape that covers an area in the vicinity of any one vertex P (see FIG. 3) of the rectangular rectangle. The second lower surface cover 120 has a shape that covers the vicinity of another apex P ′ (see FIG. 3) facing the apex P and leaves an arc-shaped open window 130 with the first lower surface cover 110. First lower surface cover 110
The light source 140 is arranged on the upper surface side of the. First lower surface cover 11
0 and the upper surface side of the arc-shaped opening window 130, the reflector 150 for guiding the light emitted upward from the light source 140 to the arc-shaped opening window 130 is arranged. The basic single device 100 will be supplementarily described. The second lower surface cover 120 and the reflection plate 150 are actually formed by integrally processing a metal plate. Although it is assembled in a rectangular shape in a plane as a whole, it has a strange shape in the height direction and is difficult to handle as it is. Therefore, a frame 160 is prepared separately. The frame 160 is a right-angled quadrangular inverted dish and is strong. Second lower surface cover 120 and reflector 1
The connection between the frame 50 and the frame body 160 is such that the apex P side is stopped by the screw 161 and the apex P ′ side of the reflection is supported by the edge support fitting 162. The light source 140 is a compact high-intensity compact fluorescent lamp. The first lower surface cover 110 is provided with a means not shown.
The device is detachably mounted on the top side. The upper surface of the first lower surface cover 110 is highly reflective. The first lower surface cover 110 is rotatably supported by the reflecting plate 150 by the shafts 111 at the ends of both sides thereof. The light source 140 can be inspected and maintained by removing a latch (not shown) from the apex P and rotating the first lower surface cover 110. Next, the auxiliary single device 200 will be described. The lower surface contour of the auxiliary single device 200 also has a rectangular shape. A band-shaped lower surface cover 210 is arranged in the range of the lower surface contour to cover a region in the vicinity of any one side S (see FIG. 9) of the right-angled quadrangle in a band shape. A strip-shaped open window 230 is formed between the other side S ′ (see FIG. 9) facing the side S and the strip-shaped lower surface cover 210. The light source 240 is arranged on the upper surface side of the strip-shaped lower surface cover 210. A reflection plate 250 that guides upward light emitted from the light source 240 to the strip-shaped open window 230 is disposed on the upper surface side of the strip-shaped lower cover 210 and the strip-shaped open window 230. The belt-shaped lower surface cover 210 of the auxiliary single device 200 is also rotatable appropriately, and is also rotated to inspect and maintain the light source 240. The light source 240 is a compact high-intensity compact fluorescent lamp. Reference numeral 260 denotes a right-angled quadrangular inverted dish-shaped frame body that houses the whole. 3 and 1
The mutual relationship between the dimensions of the respective parts will be described with reference to FIG.
The width L1 of the arcuate opening window 130 in the basic single device 100
And the width L of the belt-shaped opening window 230 in the auxiliary single device 200
4 is equal. Further, the radius L2 of the fan-shaped first lower surface cover 110 in the basic single device 100 and the auxiliary single device 200.
The width L5 of the strip-shaped lower surface cover 210 in is also equal. The basic single device 100 is a square one in a plane, and the side length L3 of the former is also equal to the side length L6 of the latter. 300 is a ceiling support bar. This is an assembly of inverted T-shaped bar elements (T bars) running in the vertical and horizontal directions, and is supported by a hanger 310 that is hung directly from a ceiling foundation or via a foundation bar (not shown). Each square of the ceiling support bar 300 serves as a ceiling module unit. Usually, a ceiling surface material (not shown) is attached here, and a lighting fixture is appropriately attached. Ceiling support bar 3
The size of each square of 00 corresponds to the plane size of the basic single device 100 or the auxiliary single device 200. Therefore,
The basic single device 100 or the auxiliary single device 200 can be arranged in any cell as shown. Ceiling support bar 300
Each square of is a square and therefore the basic unitary device 1
00 or the auxiliary single device 200 also has a square shape, but if the squares are rectangular, the rectangle is modified accordingly. The combination of the pair of basic single-unit devices 100 is arranged so that the respective open windows 130 are adjacent to each other and the first lower surface covers 110 are adjacent to each other. Basic single device 1
00 and the auxiliary single device 200 are arranged so that the respective open windows 130 and 230 are adjacent to each other, and the former first lower surface cover 110 and the latter strip-shaped lower surface cover 210 are adjacent to each other. The arrangement shown in FIG. 11 (a) is one in which four basic unitary instruments 100 are selected so that their mutual arcuate open windows 130 have a donut shape of a substantially perfect circle as a whole. The arrangements of FIGS. 11B and 11C use four basic single devices 100 and at least two auxiliary single devices 200 so that the respective open windows 130 and 230 are adjacent to each other in a ring shape as a whole. It is a choice. For example, in the case of FIG.
The 0 light distribution is directed outward along the diagonal. A pair of auxiliary single devices 20 adjacent to the basic single device 100
It is a neutral light distribution that does not carry 0 or 200.
Therefore, the light distribution characteristic of the entire device becomes a smooth and ring-shaped uniform and natural characteristic. FIG. 12 also has the same arrangement as that of FIG. 11, but in this case, the ring connecting the open windows 130 and 230 is large, and excessive darkness occurs in the ring, so that the down-portion outside the scope of the present invention is located at a key point in the ring. A light 400 is added.
In any of the above cases, it has a ring shape or a square shape, but it may be used as a modified square shape or an incomplete ring element depending on the relationship with the indoor layout.
It is conceivable that the light source 140 in the basic single device 100 is arranged not on the side of the first lower surface cover 110 near the center of the room but on the side of the second lower surface cover 120 near the wall, but in this case, the open windows 130 and 230 are naturally arranged. Satisfying the demand for smooth and continuous natural light distribution,
And it is difficult to meet the request to improve the reflection efficiency,
Further, the shape of the reflection plate 150 becomes complicated. Therefore, in the present invention, the light source 140 is arranged on the first lower surface cover 110 side. FIG. 13 schematically shows the relationship between the lighting device and the room. As shown in FIG. 13A, the general lighting device 9
When 10 is used, a strong light distribution characteristic 930 occurs in the center of the donut-shaped table 920, and darkness occurs near the conference participants 940, which may be inappropriate. FIG. 13 using an indirect lighting device 100, 200 according to the present invention including a basic standalone device 100 and an auxiliary standalone device 200.
In the case of (b), the light distribution characteristics of 950 that brightly and softly illuminate the vicinity of the conference participant 940 with indirect light directed further outward of the ring by the indirect lighting devices 100 and 200 and indirect light with less soft glare. As a result, the above-mentioned harmful effects are eliminated. FIG. 13C is an example corresponding to FIG. 12, and the light distribution characteristic 960 that is too weak at the center is complemented by the light distribution characteristic 970 by the downlight 400 at the center. In the above application example, the conference room is assumed, but the subject of the present invention is not limited to this. For example, it is also suitable for indirect lighting when it is desired to emphasize a large number of paintings on each wall around the room.

[0007]

As described above, according to the present invention, a required basic single instrument for corner arrangement of a polygonal outline and an optically quarter circle is used, and a required auxiliary single instrument is appropriately used. In this way, indirect illumination of a square-shaped arrangement or an arrangement corresponding to the element is realized. According to this, since the indirect lighting emphasizes the room surroundings rather than the room center, it is suitable for lighting in a conference room or the like. In addition, since the basic single unit as well as the auxiliary single unit are standardized in a square shape, they can be easily implemented according to the ceiling module unit.

[Brief description of drawings]

FIG. 1 is a perspective view of a basic single device according to the present invention.

FIG. 2 is a partially cutaway bottom view of the basic single device.

FIG. 3 is a perspective view showing a main part of the basic single device.

FIG. 4 is an exploded perspective view of the basic unitary instrument.

FIG. 5 is a perspective view of a main part for explaining how to inspect a light source of the basic single device.

6 is a cross-sectional view taken along the diagonal line of FIG.

FIG. 7 is a perspective view of an auxiliary single device according to the present invention.

FIG. 8 is a bottom view of the auxiliary single device.

FIG. 9 is a perspective view of a main part of the auxiliary single device.

FIG. 10 is a perspective view of relevant parts for explaining how to inspect a light source of the auxiliary single device.

FIG. 11 is a bottom view for explaining the arrangement of each single device,
(A) shows 4 cases, (b) 12 cases, (c) shows 8 cases.

FIG. 12 is a bottom view illustrating another arrangement example of each single device.

13A and 13B are explanatory diagrams showing a state in a room in which a lighting device is arranged, where FIG. 13A is a general case not according to the present invention, and FIGS. 13B and 13C are examples of the present invention.

[Explanation of symbols]

100: Basic single device 110: First lower surface cover 120: Second lower surface cover 130: Arc-shaped open window 140: Light source 150: Reflector 200: Auxiliary single device 210: Belt-shaped lower surface cover 230: Belt-shaped open window 240: Light source 250: Reflection Board 300: Ceiling support bar

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 2, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

[Fig. 13]

Claims (4)

[Claims] 1. A lower surface contour has a right-angled quadrangular shape, and a first lower surface cover and a second lower surface cover are arranged in the range of the lower surface contour, and the first lower surface cover is an area near any one vertex of the right rectangular shape. A fan-shaped planar shape, the second lower surface cover has a planar shape that covers the vicinity of another vertex opposite to the vertex and leaves an arc-shaped open window between the second lower surface cover and the first lower surface cover, A basic unitary device in which a light source is arranged on the upper surface side of the first lower surface cover, and a reflector for guiding upward light emitted from the light source to the arc-shaped opening window is arranged on the upper surface side of the first lower surface cover and the arc-shaped opening window. An indirect illumination device, comprising: a plurality of the basic single appliances having the same shape and arranged on a ceiling surface such that the arc-shaped open windows are adjacent to each other. 2. A base unit device according to claim 1,
An indirect lighting device characterized in that they are arranged on a ceiling surface so that mutual arc-shaped open windows have a donut shape as a whole. 3. A lower surface contour has a right-angled quadrangular shape, and a strip-shaped lower surface cover is provided in the range of the lower surface contour to cover an area in the vicinity of any one side of the right-angled quadrangle in a strip shape. A strip-shaped strip-shaped open window is formed between a side and the strip-shaped lower surface cover, a light source is arranged on the upper surface side of the strip-shaped lower surface cover, and the light source is arranged upward on the upper surface side of the strip-shaped lower surface cover and the strip-shaped opening window. An auxiliary unitary device having a reflector for guiding the emitted light to the band-shaped opening window is provided, and the basic unitary device according to claim 1 is provided, and the arc-shaped opening window in the basic unitary device and the band-shaped member in the auxiliary unitary device are provided. The opening windows have the same width, the radius of the fan-shaped first lower surface cover of the basic single device and the width of the strip-shaped lower surface cover of the auxiliary single device are equal, and the basic single device and the auxiliary single device are matched with each other. Each open window adjacent and indirect luminaire and wherein the first lower surface cover and latter strip underside cover the former is arranged on the ceiling surface such that adjacent. 4. A base unit including four basic unitary devices and at least two auxiliary unitary devices, wherein the respective opening windows are arranged on the ceiling surface so as to be adjacent to each other in a ring shape as a whole. The indirect lighting device described.