JP2012069485A - Lighting fixture - Google Patents

Abstract

Provided is a lighting apparatus capable of fine light distribution that emits light over a wide range without unevenness.
A plurality of light sources 30 are attached to a shaft member 25 attached to an instrument body 20 so as to be individually rotatable by an attachment member 40, so that the irradiation direction of each light source 30 can be changed. It is possible to distribute light uniformly and uniformly over a wide range. The mounting member 40 includes a substantially cylindrical gripping portion 41 that grips the shaft member 25 so as to be rotatable, and a flat mounting plate 42, and an arbitrary rotational angle is provided via an elastic body such as a rubber plate. Hold and stop.
[Selection] Figure 2

Description

  The present invention relates to a lighting fixture that has a plurality of light sources and can be used as a downlight that is attached to a ceiling or a wall surface to illuminate a lower portion or the like.

2. Description of the Related Art Conventionally, a lighting fixture that illuminates a predetermined direction in a planar shape using a plurality of light sources has been proposed (see, for example, Patent Document 1).
As shown in FIG. 6, in the lighting apparatus 100 described in Patent Document 1, a plurality of modules 102 </ b> A to 102 </ b> D are attached to a box 101. In each of the modules 102A to 102D, a plurality of LEDs 103 are arranged to form an LED light source.
A light distribution control member 104 that controls light distribution from the plurality of LEDs 103 is provided on the front surface of the plurality of LEDs 103. The LED light source combines a plurality of LEDs 103 and emits light in which R (red), G (green), and B (blue) are combined.

  The plurality of modules 102 </ b> A to 102 </ b> D are provided with rotation shafts 105 </ b> A to 105 </ b> D at both ends in the longitudinal direction, and are rotatably supported by the box 101. The modules 102A to 102D rotate around the rotation shafts 105A to 105D, and adjust and fix the light emitting directions of the plurality of LEDs 103 arranged in the modules 102A to 102D.

  Accordingly, the light emitting direction of the LED 103 in each of the modules 102A to 102D is determined by the rotation angle of each module 102A to 102D, and the light from the LED 103 is emitted in the direction determined by the rotation angle of the modules 102A to 102D. .

Japanese Patent Laid-Open No. 2007-80666 (FIG. 1)

  However, in the lighting device 100 described in Patent Document 1 described above, since the plurality of LEDs 103 are fixed to the modules 102A to 102D, the modules 102A to 102D are rotated to rotate the modules 102A to 102D. The attached LED 103 integrally changes the irradiation direction. For this reason, there has been a problem that fine light distribution that irradiates light over a wide range without unevenness cannot be performed.

  The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus capable of fine light distribution that irradiates light over a wide range without unevenness.

  The lighting fixture of the present invention includes a fixture main body that accommodates a plurality of light sources, and a shaft member provided on the fixture main body, and the plurality of light sources are attached to the shaft member in a rotatable manner. It is what was done.

  In the lighting fixture of the present invention, the light source is an LED light source.

  In the present invention, since a plurality of light sources are individually pivotally attached to a shaft member attached to the instrument body, the light source is uniformly and uniformly distributed over a wide area. It is possible to provide a lighting apparatus having an effect that light can be generated.

(A) is sectional drawing of the state which attached the lighting fixture of embodiment which concerns on this invention to the recessed part provided in the corner of a ceiling, (B) is sectional drawing of the state embedded in the corner of a ceiling (A) is sectional drawing of the lighting fixture of embodiment which concerns on this invention, (B) is the top view seen from B direction in (A) Sectional view of position III-III in FIG. The perspective view seen from the IV direction in FIG. (A) is a side view which shows the state which changed the rotation angle of each light source, (B) is a front view. Plan view of conventional lighting equipment

Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1A, the lighting fixture 10 according to the embodiment of the present invention is attached to the inside of the recess 12 provided in the corner of the ceiling 11, or as shown in FIG. It can be used as a downlight that is embedded in the ceiling 11 and illuminates the lower part.

As shown in FIGS. 2A and 2B, the lighting fixture 10 has a rectangular box-like fixture main body 20 that is opened downward (opening 21), and houses a plurality of light sources 30 therein. In addition, a power supply device 24 that is connected to a commercial power source (not shown) and supplies lighting power to the light source 30 is attached to the top surface of the top plate 23 of the instrument body 20.
Note that a translucent cover 22 can be attached to the opening 21 as necessary.

A shaft member 25 having a circular cross section penetrating in the longitudinal direction is fixed and attached inside the instrument body 20.
As shown in FIGS. 3 and 4, a plurality of attachment members 40 are rotatably attached to the shaft member 25 in order to attach a plurality of light sources 30.

The mounting member 40 includes a substantially cylindrical gripping portion 41 that grips the shaft member 25 so as to be rotatable, and a flat mounting plate 42 attached to the gripping portion 41.
An elastic body 43 such as a rubber plate is interposed inside the grip portion 41, and supports the mounting member 40 so as to be rotatable with respect to the shaft member 25, and holds an arbitrary rotation angle. The attachment member 40 is stopped in the state.

  As shown in FIGS. 2 and 3, the light source 30 includes a substrate 31 and an LED chip 32 mounted on the substrate 31. The substrate 31 is attached to the attachment plate 42 of the attachment member 40 and is electrically connected to the power supply device 24.

FIG. 5 shows a state where the irradiation direction of the light source 30 is changed.
As shown in the figure, the attachment members 40 that hold the light sources 30 can be rotated and positioned independently of each other with respect to the shaft member 25. Therefore, for example, the rotation angle can be gradually changed. . Alternatively, the rotation angle can be changed at random.

  As mentioned above, according to the lighting fixture 10 of embodiment described above, since the several light source 30 is attached with respect to the shaft member 25 attached to the instrument main body 20, it can rotate individually and can be stopped, so that each light source The irradiation direction of 30 can be changed, and a light distribution capable of uniformly irradiating a wide range without unevenness can be achieved.

  Moreover, since the lighting fixture 10 of the present invention uses the LED chip 32 as the light source 30, energy saving can be achieved.

In addition, the lighting fixture 10 of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the above-described embodiment, the light source 30, the mounting member 40, and the shaft member 25 are arranged in a line, but a plurality of these may be provided.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 20 Appliance main body 25 Shaft member 30 Light source 30 LED light source (light source)

Claims (2)

An instrument body containing a plurality of light sources;
A shaft member provided in the instrument body,
A lighting fixture in which the plurality of light sources are rotatably attached to the shaft member. The lighting fixture according to claim 1,
A luminaire in which the light source is an LED light source.

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