JP2013077477A - Lighting fixture - Google Patents

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JP2013077477A
JP2013077477A JP2011217271A JP2011217271A JP2013077477A JP 2013077477 A JP2013077477 A JP 2013077477A JP 2011217271 A JP2011217271 A JP 2011217271A JP 2011217271 A JP2011217271 A JP 2011217271A JP 2013077477 A JP2013077477 A JP 2013077477A
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light
irradiation direction
reflecting surface
light source
lighting fixture
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Hisao Kitagawa
比佐雄 北川
Shiori Ikehata
詩織 池畑
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of illuminating widely and uniformly an installation face of a ceiling or the like by preventing reduction in light power.SOLUTION: Light emitted from a light source 22 is reflected by a pair of reflection portions 24 installed in front in irradiation direction of the light source 22, and is light-distribution-controlled. At this time, the reflection portion 24 has a first reflecting surface 25 and a second reflecting surface 26: which are arranged mutually in opposition in front in the irradiation direction of the light source 22; and which are so arranged that the interval D1, D2 between the first reflecting surface 25 and the second reflecting surface 26 is increased toward the irradiation direction. Thereby, one of the reflecting surface 26 reflects light to the vicinity of irradiation direction and the another reflecting surface 25 reflects light in the direction far from the irradiation direction. Since the reflection parts 24 are provided in a pair, they can illuminate a wide range uniformly in the irradiation direction.

Description

本発明は、天井等の被取付面に取り付けて、被取付面を広く、均一に照明できる照明器具に関するものである。   The present invention relates to a lighting fixture that can be attached to a mounting surface such as a ceiling to illuminate the mounting surface widely and uniformly.

従来より、天井等の被取付面に取り付けて、被取付面を照明できる照明器具が知られている（例えば、特許文献１参照）。
図７に示すように、特許文献１に記載の照明器具１００は、被取付面である天井面１０１に取付けて室内および天井面１０１等を照明する。照明器具１００は、光源である蛍光灯１０２を収容する蛍光灯収容部１０３と、蛍光灯収容部１０３の上側に設けられて点灯装置等の電気器具を収容する器具収容部１０４とを有し、器具収容部１０４が天井面１０１に取付けられる。 2. Description of the Related Art Conventionally, lighting fixtures that can be attached to a mounting surface such as a ceiling to illuminate the mounting surface are known (see, for example, Patent Document 1).
As illustrated in FIG. 7, a lighting fixture 100 described in Patent Document 1 is attached to a ceiling surface 101 that is a surface to be attached, and illuminates the room, the ceiling surface 101, and the like. The luminaire 100 includes a fluorescent lamp housing portion 103 that houses a fluorescent lamp 102 that is a light source, and a fixture housing portion 104 that is provided on the upper side of the fluorescent lamp housing portion 103 and houses an electrical appliance such as a lighting device. The instrument housing portion 104 is attached to the ceiling surface 101.

蛍光灯収容部１０３は下面が開口した全体矩形箱状を呈しており、蛍光灯１０２の長手方向に沿ったプリズム構造を有する側壁１０５を有する。２本の蛍光灯１０２、１０２の間には、下に向かって山型をなす一対の反射面１０６、１０６を有する反射板１０７が設けられている。   The fluorescent lamp housing portion 103 has an overall rectangular box shape with an open bottom surface, and includes a side wall 105 having a prism structure along the longitudinal direction of the fluorescent lamp 102. A reflecting plate 107 having a pair of reflecting surfaces 106 and 106 that form a mountain shape downward is provided between the two fluorescent lamps 102 and 102.

従って、蛍光灯１０２から下方へ照射された光は、直接下方へ照射される。蛍光灯１０２から中央側へ照射された光は、反射板１０７の反射面１０６に当たって、主に下方へ照射される。蛍光灯１０２から外側へ照射された光は、側壁１０５を通って左右両側へ照射される。このとき、光の一部は、側壁１０５のプリズム作用によって乱反射して、天井面１０１を照明する。   Therefore, the light irradiated downward from the fluorescent lamp 102 is directly irradiated downward. The light irradiated from the fluorescent lamp 102 toward the center strikes the reflecting surface 106 of the reflecting plate 107 and is mainly irradiated downward. Light emitted from the fluorescent lamp 102 to the outside passes through the side wall 105 and is emitted to both the left and right sides. At this time, part of the light is diffusely reflected by the prism action of the side wall 105 to illuminate the ceiling surface 101.

特開２０１０−２０５４２２号公報（第１図）Japanese Patent Laying-Open No. 2010-205422 (FIG. 1)

しかしながら、前述した従来の照明器具のように、プリズムやレンズ等の光を透過させることにより光の向きを変えて天井面等を照明する照明器具では、プリズムやレンズを透過する際に減衰して光パワーが落ちるという問題があった。   However, as in the conventional lighting fixture described above, in a lighting fixture that illuminates the ceiling surface etc. by changing the direction of the light by transmitting the light from the prism or lens, the light is attenuated when passing through the prism or lens. There was a problem that the optical power dropped.

本発明は、従来の問題を解決するためになされたもので、光パワーの低下を防止して、天井面等の被取付面を広く均一に照明できる照明器具を提供することを目的とする。   The present invention has been made to solve the conventional problems, and an object of the present invention is to provide a lighting apparatus that can prevent a decrease in optical power and can illuminate a mounted surface such as a ceiling surface widely and uniformly.

本発明の照明器具は、光源と、前記光源の照射を配光制御する一対の反射部と、前記光源および前記反射部を収容する照明ユニットと、を有し、前記反射部は、前記光源の照射方向前方において互いに対向配置された第１の反射面と第２の反射面とを有し、前記第１の反射面と前記第２の反射面との間隔が、照射方向前方に行くにつれて拡がるように配置されたものである。   The luminaire of the present invention includes a light source, a pair of reflection units that control light distribution of the light source, and an illumination unit that houses the light source and the reflection unit. A first reflective surface and a second reflective surface are disposed opposite to each other in the front of the irradiation direction, and a distance between the first reflective surface and the second reflective surface increases as it goes forward in the irradiation direction. It is arranged like this.

また、本発明の照明器具は、前記一対の反射部の間にスリットが設けられているものである。   Moreover, the lighting fixture of this invention is provided with the slit between said pair of reflection parts.

さらに、本発明の照明器具では、前記光源は、隣接する前記第１の反射面の境界および隣接する前記第２の反射面の境界に対向する位置を外して配置されるものである。   Furthermore, in the lighting fixture according to the present invention, the light source is disposed at a position opposite to a boundary between the adjacent first reflection surfaces and a boundary between the adjacent second reflection surfaces.

本発明では、反射部は、光源の照射方向前方において互いに対向配置された第１の反射面と第２の反射面とを有し、第１の反射面と第２の反射面との間隔が、照射方向前方に行くにつれて拡がるように配置された。このため、一方の反射面は光を照射方向近辺に反射し、他方の反射面は光を照射方向に対して遠い方向へ反射する。反射部は光源を挟んで一対設けられているので、照射方向に対して広い範囲を均一に照明することができるという効果を有する照明器具を提供できる。   In the present invention, the reflection unit has a first reflection surface and a second reflection surface that are arranged opposite to each other in front of the irradiation direction of the light source, and an interval between the first reflection surface and the second reflection surface is set. It was arranged to expand as it went forward in the irradiation direction. For this reason, one reflection surface reflects light in the vicinity of the irradiation direction, and the other reflection surface reflects light in a direction far from the irradiation direction. Since a pair of reflectors are provided with a light source in between, it is possible to provide a luminaire having an effect of being able to uniformly illuminate a wide range with respect to the irradiation direction.

本発明に係る実施形態の照明器具の長手方向に沿って上下に切断した断面図Sectional drawing cut | disconnected up and down along the longitudinal direction of the lighting fixture of embodiment which concerns on this invention （Ａ）は本発明に係る実施形態の照明器具の端面図であり、（Ｂ）は図１中ＩＩ−ＩＩ位置の断面図(A) is an end view of the lighting fixture of the embodiment according to the present invention, (B) is a cross-sectional view taken along the II-II position in FIG. 図１中ＩＩＩ−ＩＩＩ位置の拡大断面図1 is an enlarged cross-sectional view at the position III-III in FIG. 照明ユニットの分解斜視図Exploded perspective view of lighting unit 上向きの照明ユニットによる照射光の経路説明図Illustrating route of irradiation light by upward lighting unit 図１中ＶＩ方向から見た平面図Plan view from the VI direction in FIG. （Ａ）は従来の照明器具の側面図であり、（Ｂ）は（Ａ）中Ｂ方向から見た端面図であり、（Ｃ）は（Ａ）中Ｃ方向から見た下面図(A) is the side view of the conventional lighting fixture, (B) is the end view seen from B direction in (A), (C) is the bottom view seen from C direction in (A).

以下、本発明に係る実施形態の照明器具について、図面を用いて説明する。
図１および図２に示すように、本発明に係る実施形態の照明器具１０は、天井１１等の被取付面に取り付けて、天井１１を照明する。照明器具１０は、例えばパイプ１２やワイヤ１３等の吊下部材により、長手方向に複数個（図１においては、例えば４個）の照明ユニット２０を収容した筐体３０を天井１１から吊下げて使用される。 Hereinafter, the lighting fixture of embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIGS. 1 and 2, a lighting fixture 10 according to an embodiment of the present invention is attached to a mounting surface such as a ceiling 11 to illuminate the ceiling 11. The luminaire 10 suspends a casing 30 that houses a plurality of (for example, four in FIG. 1) illumination units 20 from the ceiling 11 in a longitudinal direction by a suspension member such as a pipe 12 or a wire 13. used.

図３に示すように、矩形断面の筐体３０は上面および下面に開口（上部開口３１、下部開口３２）しており、上部開口３１および下部開口３２に対向して一対の照明ユニット２０、２０Ｕが設けられている。
なお、以下においては、主に上向きの照明ユニット２０について説明するが、下向きの照明ユニット２０Ｕは、上向きの照明ユニット２０と全く同様の構成である。 As shown in FIG. 3, the casing 30 having a rectangular cross section has openings (upper opening 31 and lower opening 32) on the upper and lower surfaces, and a pair of lighting units 20 and 20U facing the upper opening 31 and the lower opening 32. Is provided.
Although the upward lighting unit 20 will be mainly described below, the downward lighting unit 20U has the same configuration as that of the upward lighting unit 20.

図３および図４に示すように、上向きの照明ユニット２０は、下方に開口した断面コ字状のフレーム２１の上面に、光源であるＬＥＤ２２を実装したＬＥＤ基板２３が取り付けられている。ＬＥＤ２２は、ＬＥＤ基板２３の長手方向に沿って複数個（ここでは、例えば３個）設けられており、長手方向両端部のＬＥＤ２２は、ＬＥＤ基板２３の端部２３１から一定距離だけ中央側に配置されている。   As shown in FIGS. 3 and 4, the upward lighting unit 20 has an LED substrate 23 on which an LED 22 as a light source is mounted on an upper surface of a U-shaped frame 21 opened downward. A plurality of LEDs 22 (three in this case, for example) are provided along the longitudinal direction of the LED substrate 23, and the LEDs 22 at both ends in the longitudinal direction are arranged on the center side from the end 231 of the LED substrate 23 by a certain distance. Has been.

ＬＥＤ２２の照射方向前方（すなわち、上方）には、ＬＥＤ２２からの光を配光制御する一対の反射部２４を有する。各反射部２４は、ＬＥＤ２２の照射方向前方において互いに対向配置された第１の反射面２５と第２の反射面２６とを有し、第１の反射面２５および第２の反射面２６は両端をエンドプレート２４１に固定されて、枠状を形成している。第１の反射面２５と第２の反射面２６との間は、ＬＥＤ２２からの光が通過可能な空間２７が設けられている。   In front of the irradiation direction of the LED 22 (that is, above), there is a pair of reflecting portions 24 that control light distribution from the LED 22. Each reflecting portion 24 has a first reflecting surface 25 and a second reflecting surface 26 that face each other in front of the irradiation direction of the LED 22, and the first reflecting surface 25 and the second reflecting surface 26 are both ends. Is fixed to the end plate 241 to form a frame shape. A space 27 through which light from the LED 22 can pass is provided between the first reflecting surface 25 and the second reflecting surface 26.

第１の反射面２５および第２の反射面２６は、互いの間隔Ｄ１、Ｄ２が照射方向前方に行くにつれて拡がるように配置する。
すなわち、図３に示すように、ＬＥＤ２２側端部における第１の反射面２５と第２の反射面２６との間隔Ｄ１と、照射方向前側端部における第１の反射面２５と第２の反射面２６との間隔Ｄ２が、Ｄ１＜Ｄ２の関係となるように設定する。 The 1st reflective surface 25 and the 2nd reflective surface 26 are arrange | positioned so that the mutual distance D1 and D2 may spread as it goes to an irradiation direction front.
That is, as shown in FIG. 3, the distance D1 between the first reflecting surface 25 and the second reflecting surface 26 at the LED 22 side end, and the first reflecting surface 25 and the second reflecting at the irradiation direction front end. The distance D2 from the surface 26 is set so as to satisfy the relationship D1 <D2.

一対の反射部２４の間には、スリット２８が設けられている。スリット２８は、ＬＥＤ２２の照射方向前方正面に位置する。
従って、図５に示すように、ＬＥＤ２２から照射された光は、ＬＥＤ２２の正面に位置するスリット２８を通過して真上に照射される（照射光Ｌ１）。第１の反射面２５で反射した光は、側方に照射される（照射光Ｌ２）。また、第２の反射面２６で反射した光は、天井１１側に照射される（照射光Ｌ３）。さらに、第１の反射面２５と第２の反射面２６との間の空間２７を通過した光は、そのまま直進する（照射光Ｌ４）。 A slit 28 is provided between the pair of reflecting portions 24. The slit 28 is located in front of the irradiation direction of the LED 22.
Therefore, as shown in FIG. 5, the light emitted from the LED 22 passes through the slit 28 located in front of the LED 22 and is emitted directly above (irradiated light L <b> 1). The light reflected by the first reflecting surface 25 is irradiated to the side (irradiation light L2). Further, the light reflected by the second reflecting surface 26 is irradiated to the ceiling 11 side (irradiation light L3). Furthermore, the light that has passed through the space 27 between the first reflecting surface 25 and the second reflecting surface 26 travels straight (irradiation light L4).

図６に示すように、筐体３０の内部には、複数個の照明ユニット２０が長手方向に連続して収容されており、隣接する照明ユニット２０のエンドプレート２４１同士が接触している。
前述したように、照明ユニット２０の長手方向両端部のＬＥＤ２２は、エンドプレート２４１から所定距離ＬＥＤ基板２３の中央側に配置されている。このため、ＬＥＤ２２は、隣接する照明ユニット２０の境界に対向する位置（すなわち、エンドプレート２４１位置）には、配置されない。 As shown in FIG. 6, a plurality of lighting units 20 are continuously accommodated in the longitudinal direction inside the housing 30, and end plates 241 of adjacent lighting units 20 are in contact with each other.
As described above, the LEDs 22 at both ends in the longitudinal direction of the illumination unit 20 are arranged on the center side of the LED substrate 23 at a predetermined distance from the end plate 241. For this reason, LED22 is not arrange | positioned in the position (namely, end plate 241 position) which opposes the boundary of the adjacent lighting unit 20. FIG.

以上、説明した本発明に係る実施形態の照明器具１０によれば、ＬＥＤ２２から発せられた光は、ＬＥＤ２２の照射方向前方に設けられている一対の反射部２４により反射されて配光制御される。このとき、反射部２４は、ＬＥＤ２２の照射方向前方において互いに対向配置された第１の反射面２５と第２の反射面２６とを有し、第１の反射面２５と第２の反射面２６との間隔Ｄ１、Ｄ２が、照射方向前方に行くにつれて拡がるように配置された。
このため、一方の反射面は光を照射方向近辺に反射し、他方の反射面は光を照射方向に対して遠い方向へ反射する。反射部２４は、ＬＥＤ２２を挟んで一対設けられているので、照射方向に対して両側に、広い範囲を均一に照明することができる。このとき、レンズ等を用いた場合のように光が減衰しないので、効率よく照明できる。 As mentioned above, according to the lighting fixture 10 of embodiment which concerns on this invention demonstrated, the light emitted from LED22 is reflected by a pair of reflection part 24 provided ahead of the irradiation direction of LED22, and light distribution control is carried out. . At this time, the reflection unit 24 includes a first reflection surface 25 and a second reflection surface 26 that are opposed to each other in front of the irradiation direction of the LED 22, and the first reflection surface 25 and the second reflection surface 26. The distances D1 and D2 are arranged so as to increase toward the front in the irradiation direction.
For this reason, one reflection surface reflects light in the vicinity of the irradiation direction, and the other reflection surface reflects light in a direction far from the irradiation direction. Since a pair of the reflectors 24 are provided with the LED 22 in between, a wide range can be uniformly illuminated on both sides with respect to the irradiation direction. At this time, since the light is not attenuated as in the case of using a lens or the like, illumination can be performed efficiently.

また、一対の反射部２４の間にスリット２８を設けたので、ＬＥＤ２２から発せられた光は、スリット２８を通って、直接照射方向に照射される。   In addition, since the slit 28 is provided between the pair of reflecting portions 24, the light emitted from the LED 22 is directly irradiated in the irradiation direction through the slit 28.

また、隣接する反射部２４の境界となるエンドプレート２４１に対向する位置を外してＬＥＤ２２を配置したので、エンドプレート２４１によって遮られることなく光を照射できる。   Further, since the LED 22 is arranged by removing the position facing the end plate 241 that becomes the boundary between the adjacent reflecting portions 24, light can be irradiated without being blocked by the end plate 241.

なお、本発明の照明器具は、前述した実施形態に限定されるものでなく、適宜な変形，改良等が可能である。
例えば、前述した実施形態に示した照明器具１０おいては、照明ユニット２０、２０Ｕを上下方向に向けて設けた場合を例示したが、上向きの照明ユニット２０のみ、あるいは下向きの照明ユニット２０Ｕのみを設けることも可能である。 In addition, the lighting fixture of this invention is not limited to embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
For example, in the lighting fixture 10 shown in the above-described embodiment, the case where the lighting units 20 and 20U are provided in the vertical direction is illustrated, but only the upward lighting unit 20 or only the downward lighting unit 20U is provided. It is also possible to provide it.

１０ 照明器具
２０、２０Ｕ 照明ユニット
２２ ＬＥＤ（光源）
２４ 反射部
２５ 第１の反射面
２６ 第２の反射面
２８ スリット
Ｄ１、Ｄ２ 間隔 10 Lighting fixture 20, 20U Lighting unit 22 LED (light source)
24 Reflector 25 First Reflective Surface 26 Second Reflective Surface 28 Slit D1, D2 Interval

Claims (3)

光源と、
前記光源の照射を配光制御する一対の反射部と、
前記光源および前記反射部を収容する照明ユニットと、を有し、
前記反射部は、前記光源の照射方向前方において互いに対向配置された第１の反射面と第２の反射面とを有し、
前記第１の反射面と前記第２の反射面との間隔が、照射方向前方に行くにつれて拡がるように配置された照明器具。 A light source;
A pair of reflectors for controlling light distribution of the light source;
An illumination unit that accommodates the light source and the reflective portion;
The reflection unit includes a first reflection surface and a second reflection surface that are disposed to face each other in front of the light source in the irradiation direction;
The lighting fixture arrange | positioned so that the space | interval of a said 1st reflective surface and a said 2nd reflective surface may spread as it goes to an irradiation direction front. 請求項１に記載の照明器具において、
前記一対の反射部の間にスリットが設けられている照明器具。 The lighting fixture according to claim 1,
A lighting fixture in which a slit is provided between the pair of reflecting portions. 請求項１または請求項２に記載の照明器具において、
前記光源は、隣接する前記第１の反射面の境界および隣接する前記第２の反射面の境界に対向する位置を外して配置される照明器具。 The lighting fixture according to claim 1 or 2,
The illuminating device is arranged such that the light source is disposed at a position opposite to a boundary between the adjacent first reflection surfaces and a boundary between the adjacent second reflection surfaces.
JP2011217271A 2011-09-30 2011-09-30 Lighting fixture Pending JP2013077477A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7121690B1 (en) * 2004-02-26 2006-10-17 Advanced Optical Technologies, Llc Constructive occlusion with a transmissive component
US20090316414A1 (en) * 2008-06-18 2009-12-24 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp
JP2010114065A (en) * 2008-10-07 2010-05-20 Opt Design:Kk Light source device and illumination device using the same
WO2010082806A2 (en) * 2009-01-19 2010-07-22 Shin Jeong-Hun Led lighting lamp with antiglare function
DE202010005862U1 (en) * 2010-04-20 2010-08-05 Li, Chia-Mao Extended reflection frame with ultra-high frequency
JP2012243533A (en) * 2011-05-18 2012-12-10 Mitsubishi Electric Corp Led unit and lighting fixture

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7121690B1 (en) * 2004-02-26 2006-10-17 Advanced Optical Technologies, Llc Constructive occlusion with a transmissive component
US20090316414A1 (en) * 2008-06-18 2009-12-24 Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. Led lamp
JP2010114065A (en) * 2008-10-07 2010-05-20 Opt Design:Kk Light source device and illumination device using the same
WO2010082806A2 (en) * 2009-01-19 2010-07-22 Shin Jeong-Hun Led lighting lamp with antiglare function
DE202010005862U1 (en) * 2010-04-20 2010-08-05 Li, Chia-Mao Extended reflection frame with ultra-high frequency
JP2012243533A (en) * 2011-05-18 2012-12-10 Mitsubishi Electric Corp Led unit and lighting fixture

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