JP2012089280A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of suppressing illumination unevenness when indirect illumination is obtained by connecting a plurality of tubular light sources in series and moreover simplifying a structure of a reflection plate and making easy mounting work of the reflection plate.SOLUTION: The lighting fixture is provided with a plurality of tubular light sources 11 connected in series so that each of the end parts may come close each other, a reflection plate 13 which is formed in a straight line along the plurality of the tubular light sources 11 and reflects light emitted from the tubular light sources 11 and irradiates the light to an irradiated surface for obtaining indirect illumination, and a light shielding plate 15 which is formed in a straight line along the plurality of the tubular light sources 11 and shields a part of light directly emitted from the plurality of the tubular light sources 11 toward the irradiated surface.

Description

  The present invention relates to a lighting fixture.

  There is known a lighting fixture that obtains indirect illumination by reflecting light emitted from a light source by a ceiling surface or a wall surface. Conventionally, as this type of lighting fixture, the light emitted from the end portion of the tubular light source and the portion in the vicinity of the end portion is reflected near the end portion of the tubular light source, and this light is applied to the ceiling surface and the wall surface. A cove-type lighting fixture provided with a mirror is known (see, for example, Patent Document 1).

  In this cove-type luminaire, the indirect illumination by light from the end portion of the tubular light source and the portion near the end portion becomes darker than the indirect illumination by light emitted from the end portion and portions other than the vicinity of the end portion ( Hereinafter, illumination unevenness) can be suppressed.

JP 2003-132706 A (Claim 1, FIG. 1, paragraph 0013)

  However, in the conventional cove-type lighting fixture, when indirect illumination is obtained by connecting a plurality of tubular light sources in series, the configuration of the reflecting mirror is complicated, and there is a possibility that the attaching operation of the reflecting mirror becomes difficult.

  The present invention has been made in order to solve the above-described problems. When indirect illumination is obtained by connecting a plurality of tubular light sources in series, illumination unevenness can be suppressed and the configuration of the reflecting member is simplified. It is another object of the present invention to provide a lighting fixture that can be attached to the reflecting member easily.

  The luminaire of the present invention includes a plurality of tubular light sources connected in series so that the end portions are close to each other, and light that is linearly formed along the plurality of tubular light sources and emitted from the tubular light sources. Reflected to irradiate the surface to be irradiated to obtain indirect illumination, and is formed linearly along the plurality of tubular light sources, and directly radiates from the plurality of tubular light sources toward the surface to be irradiated. A light shielding plate that blocks a part of the emitted light.

  Here, the light shielding plate is provided with a notch through which a part of the light emitted from the connecting portion in the plurality of tubular light sources and a portion in the vicinity of the connecting portion is passed.

  According to the present invention, illumination irregularity of indirect illumination can be achieved simply by arranging a linearly formed reflecting plate and light shielding plate along a plurality of tubular light sources along a plurality of tubular light sources arranged in series. And the configuration of the reflecting plate and the light shielding plate can be simplified, and the attaching operation of the reflecting plate and the light shielding plate can be facilitated.

The figure which shows the lighting fixture of embodiment which concerns on this invention 1 arrow view of FIG. B arrow view of FIG. The figure which shows the indirect lighting apparatus to which the lighting fixture of embodiment which concerns on this invention is applied

Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated with reference to drawings.
FIG. 1 shows a lighting fixture 10 according to an embodiment of the present invention. The luminaire 10 includes a plurality of tubular light sources 11 connected in series so that ends thereof are close to each other, and a linear shape along the plurality of tubular light sources 11, and light emitted from the tubular light sources 11. A plurality of tubular light sources 11 are formed in a straight line along a plurality of tubular light sources 11 and a reflecting plate 13 that irradiates an illuminated surface (for example, a ceiling surface or a wall surface) for obtaining indirect illumination by reflecting the light. And a light shielding plate 15 that blocks part of the light emitted directly from the light toward the irradiated surface.

  Next, each of the above components will be described. As the irradiated surface for obtaining indirect illumination, a ceiling surface, a wall surface, or the like is used. The tubular light source 11 can be a straight tubular discharge lamp or the like. In the present embodiment, the reflecting plate 13 is formed in a linear shape having the same length as the tubular light source 11. The reflecting plate 13 is connected in parallel with each tubular light source 11. Thereby, the plurality of reflecting plates 13 are linearly arranged along the plurality of tubular light sources 11.

  As shown in FIG. 2, each reflecting plate 13 is formed in a substantially inverted J shape so as to reflect the light emitted from the tubular light source 11 and reliably irradiate the irradiated surface. 11 is disposed so as to cover the surface opposite to the irradiated surface and open the irradiated surface side. As the reflecting plate 13, a material having high reflectivity such as a steel plate, stainless steel, and an aluminum plate can be used.

  The light shielding plate 15 has substantially the same length as the reflecting plate 13 and a relatively narrow width. Further, the light shielding plate 15 is connected to the end of the short side of the reverse J-shape of the reflection plate 13 and is bent from the reflection plate 13 toward the tubular light source 11 in a substantially reverse L shape.

  As shown in FIG. 3, the light shielding plate 15 is provided with a connection portion 14 of the plurality of tubular light sources 11 and a notch 16 through which a part of light emitted from a portion near the connection portion 14 passes. The light that has passed through the notch 16 is directly irradiated onto the irradiated surface. In the present embodiment, the notch 16 is formed in an isosceles triangle shape in which the opening area gradually decreases from the end edge 15a of the light shielding plate 15 to the inside.

  In the present embodiment, a part of the light emitted from the tubular light source 11 and directly irradiated in the direction of the irradiated surface is blocked by the light shielding plate 15, but is emitted from the connecting portion 14 of the tubular light source 11 and the vicinity of the connecting portion 14. Then, a part of the light directly irradiated in the direction of the irradiated surface passes through the notch 16 and is directly irradiated on the irradiated surface.

  A socket portion 17 for supplying power to the tubular light source 11 is provided on the opposite side of the reflecting plate 13 from the tubular light source 11.

FIG. 4 shows an indirect lighting device 20 using the lighting fixture 10 according to the embodiment of the present invention. The indirect lighting device 20 is provided with a falling wall 22 that extends downward from a ceiling surface 21 that is an irradiated surface, and the lighting fixture 10, 10 is attached. These lighting fixtures 10 and 10 are arrange | positioned in the right-and-left opposite direction mutually.
In the following description, the left side lighting fixture 10 in FIG. 1 will be mainly described. However, the right side lighting fixture 10 in FIG. 1 is arranged in the opposite direction to the left side lighting fixture 10. Since it is the same structure, the description is abbreviate | omitted.

  The lighting fixture 10 is disposed with the opening in the inverted J shape of the reflector 13 facing the ceiling surface 21 and the wall surface 22A, and the light shielding plate 15 orthogonal to the wall surface 22A. When the tubular light source 11 of the luminaire 10 is turned on, the light emitted from the portion of the tubular light source 11 opposite to the ceiling surface 21 and the wall surface 22A is reflected by the reflecting plate 13, so that the ceiling surface 21 and the wall surface Indirect illumination is obtained by being irradiated on 22A and further reflected by the ceiling surface 21 and the wall surface 22A.

  Further, most of the light emitted from the portion of the tubular light source 11 facing the ceiling surface 21 and the wall surface 22A is directly irradiated to the ceiling surface 21 and the wall surface 22A. However, a part of the light emitted from the portion facing the wall surface 22A in the tubular light source 11 is shielded by the light shielding plate 15 and is not irradiated to the wall surface 22A, but the connecting portions 14 and the connecting portions 14 in the plurality of tubular light sources 11 are not irradiated. Part of the light emitted from the vicinity passes through the notch 16 (see FIG. 3) of the light shielding plate 15 and is directly irradiated onto the wall surface 22A.

  Note that a shielding piece 23 that protrudes to the side is provided at the lower end of the falling wall 22. Each of the lighting fixtures 10 and 10 is shielded by the shielding piece 23 so that it cannot be visually recognized by a person on the floor surface.

  According to the luminaire 10 of the present invention, the amount of light emitted from the tubular light source 11 and directly irradiated onto the wall surface 22 </ b> A close to the luminaire 10 is adjusted by the light shielding plate 15. Illumination unevenness occurs between indirect illumination with light with relatively low luminance emitted from the vicinity of the portion 14 and the connecting portion 14 and indirect illumination with light with relatively high luminance emitted from other portions. Can be suppressed.

  Further, the light shielding plate 15 is provided with a notch 16 that allows a part of light emitted from the connecting portion 14 of the plurality of tubular light sources 11 and a portion near the connecting portion 14 to pass therethrough, so that the notch 16 is passed. Light is directly applied to the wall surface 22A. Thereby, the indirect illumination by the light radiated | emitted from the part near the connection part 14 and the connection part 14 of the tubular light source 11, and the indirect illumination by the light radiated | emitted from parts other than the vicinity of the connection part 14 and the connection part 14 are carried out. In the meantime, the occurrence of uneven illumination can be more reliably suppressed.

  Further, since the reflecting plate 13 and the light shielding plate 15 are formed linearly along the plurality of tubular light sources 11, the configuration of the reflecting plate 13 and the light shielding plate 15 can be simplified. Further, the mounting work can be facilitated by simply mounting the reflecting plate 13 and the light shielding plate 15 along the plurality of tubular light sources 11.

  In the present embodiment, the reflecting plate 13 and the light shielding plate 15 are integrally formed in an inverted J shape, so that only a plurality of tubular light sources 11 are inserted between the reflecting plate 13 and the light shielding plate 15. Since the reflecting plate 13 and the light shielding plate 15 can be attached to the plurality of tubular light sources 11, the attaching operation can be further facilitated.

  Moreover, according to the indirect lighting device 20 according to the present embodiment, the lighting fixtures 10 are provided at the lower ends of the both wall surfaces 22A and 22A of the falling wall 22, so that indirect lighting without uneven illumination over a wide range is possible. Get.

  In addition, the notch 16 of the light shielding plate 15 in the luminaire 10 can have various shapes such as a triangle and a quadrangle.

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Tubular light source 13 Reflector 14 Connection part 15 Light-shielding plate 16 Notch 21 Ceiling surface (irradiation surface)
22A Wall surface (irradiated surface)

Claims (2)

A plurality of tubular light sources arranged in series so that the ends are close to each other;
A reflecting plate that is formed linearly along the plurality of tubular light sources and that irradiates an irradiated surface to obtain indirect illumination by reflecting light emitted from the tubular light sources;
A light fixture comprising: a light shielding plate that is formed linearly along the plurality of tubular light sources and blocks a part of light directly emitted from the plurality of tubular light sources toward the irradiated surface. The lighting fixture according to claim 1,
The lighting device is provided with a notch through which a part of light emitted from a connecting portion of the plurality of tubular light sources and a portion in the vicinity of the connecting portion is passed.

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