JP2014112556A

JP2014112556A - Illumination apparatus

Info

Publication number: JP2014112556A
Application number: JP2014038417A
Authority: JP
Inventors: Takuo Murai; 卓生村井; Takanori Sone; 孝典曽根; Hideki Fukuda; 秀樹福田; Takanori Hikima; 孝典引間; Takeshi Nakamachi; 剛中町; Hidefumi Arai; 秀文荒井; Shinichi Kato; 伸一加藤
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2014-06-19

Abstract

PROBLEM TO BE SOLVED: To provide an illumination apparatus including a main light source and sub light sources, having illumination performance effects concerned with a spatially open feeling, a depth feeding, a bright feeling, etc., capable of achieving desired illuminance distribution, excellent in design, and having good luminous efficiency.SOLUTION: An illumination apparatus 1100 includes: a cylindrical housing 110 including a first light-emitting part 100 (a main light-emitting part); and a second light-emitting part 200 (a sub light-emitting part) supported by several support shafts 300 extended from a side face of the cylindrical housing 110 on positions of respective support shaft tip housings 210 and capable of emitting light with a light distribution characteristic different from that of the first light-emitting part 100. The second light-emitting part 200 has an annular shape supported on the tips of the support shafts 300. The second light-emitting part 200 uses LEDs as second light source parts and includes a light guide body 230. The light guide body 230, while propagating light from second light source parts arranged on the tips of the plurality of support shafts 300, applies the light to a space.

Description

本発明は、発光ダイオード（ＬＥＤ；Ｌｉｇｈｔ・Ｅｍｉｔｔｉｎｇ・Ｄｉｏｄｅ）や有機ＥＬ光源などの固体光源を用いた照明器具に関する。 The present invention relates to a luminaire using a solid light source such as a light emitting diode (LED; Light Emitting Diode) or an organic EL light source.

これまで照明空間の演出などを目的とし、主光源と副光源との２種光源を備え持つ構成の照明装置（照明器具）の提案が幾つかなされている。そのうち光源に小型、長寿命といった特徴を持つＬＥＤを用いた先行技術例が、例えば特許文献１に示されている。 Some proposals have been made for lighting devices (lighting fixtures) having two types of light sources, a main light source and a sub-light source, for the purpose of producing an illumination space. Among them, for example, Patent Document 1 discloses a prior art example in which an LED having characteristics such as small size and long life is used as a light source.

特許文献１は、第一光源（ＬＥＤ）を収納する広面積の筐体の周縁部に第二光源（ＬＥＤを用いたライトガイド）を設けた構成とし、発光素子固有の特質を活かしたデザインを備えた、優れた照明器具を提供するとしている。また、従来の照明器具と比較して、照明器具の外周縁（ライトガイド）が線状に光りＬＥＤ発光素子の特質を活かした斬新な見栄えが提供されるとしている。 Patent Document 1 has a configuration in which a second light source (light guide using an LED) is provided at the periphery of a large-area housing that houses the first light source (LED), and a design that takes advantage of the unique characteristics of the light emitting element. It is said that it will provide an excellent lighting fixture. In addition, as compared with conventional lighting fixtures, the outer peripheral edge (light guide) of the lighting fixtures shine linearly, and a novel appearance utilizing the characteristics of LED light emitting elements is provided.

特開２００８−２９３７６９号公報JP 2008-293769 A 特開２００５−１５８４９６号公報Japanese Patent Laid-Open No. 2005-15896 特開２００８−２５８０８０号公報JP 2008-258080 A 特開２００９−０２１２００号公報JP 2009-021200 A 特開２００６−２３６７８２号公報JP 2006-236782 A 特開２０１０−２０５４３９号公報JP 2010-205439 A 登録実用新案第３１６１４２５号公報Registered Utility Model No. 3161425

（１）前述の特許文献１では、装置自体が扁平であり、広い面積を有する第一光源収納筐体に対し、周縁部のライトガイド発光部の面積はごく限られる。このため、本器具の下方から見込んだ際には、光量面、光の広がり面、光色面などを考慮しても、ライトガイド自体の有する演出効果が大きいとは言いがたい。
（２）また同文献で示される、例えば、吊り下げ使用するような場合には、器具全体が大型化（大面積化）する傾向があるため、空間的な圧迫感や、さらに広い面積の主光源部分に眩しさを強く感じられる懸念がある。 (1) In the above-mentioned Patent Document 1, the area of the light guide light emitting portion at the peripheral portion is extremely limited with respect to the first light source housing housing having a flat area and the device itself being flat. For this reason, it is difficult to say that the light guide itself has a great effect when taking into consideration the light amount surface, the light spreading surface, the light color surface, and the like when viewed from below the appliance.
(2) In addition, as shown in the same document, for example, when used in a suspended manner, the entire instrument tends to become larger (larger area). There is a concern that the light source part is strongly dazzled.

（３）とくに本文献のライトガイド部は、ＬＥＤ光をライトガイド表面凹部から入光させ、さらに小ＬＥＤ数でガイド全体に光を導光し側面発光させようとする構成である。そのため、ライトガイド入光面でのＬＥＤ反射光比率が多く入光効率が悪いという課題がある。
（４）また、このライトガイド自体は、長いだけではなく相当に薄いため、湾曲して光の導光効率の低下を招くという課題がある。
（５）さらに、ライトガイド片側側面の光のみを利用するため、本器具を側方から見込んだ場合にも、とくにライトガイド部は全体的に暗く、しかも光むら（輝度むら）を生じやすい構成である。この点から見ても、望む照明演出効果が得られにくいという課題がある。 (3) Especially the light guide part of this literature is the structure which makes LED light enter from a light guide surface recessed part, and also guides light to the whole guide and light-emits a side surface by the small LED number. Therefore, there is a problem that the LED reflected light ratio on the light guide incident surface is large and the light incident efficiency is poor.
(4) Further, since the light guide itself is not only long but is considerably thin, there is a problem that the light guide is curved and causes a reduction in light guiding efficiency.
(5) Furthermore, since only the light on one side of the light guide is used, the light guide part is particularly dark overall and is likely to cause uneven light (brightness unevenness) even when the device is viewed from the side. It is. Even if it sees from this point, there exists a subject that it is difficult to obtain the desired lighting production effect.

本発明は、主光源と副光源とを有する照明装置において、空間的開放感、奥行き感、明るさ感などに係わる照明演出効果を備えた照明装置の提供を目的とする。 An object of the present invention is to provide a lighting device having a lighting effect related to a feeling of spatial openness, a feeling of depth, a feeling of brightness, etc. in a lighting device having a main light source and a sub-light source.

この発明の照明装置は、
空間に光を照射する照明装置において、
第一筐体と、前記第一筐体に配置されて光を発する第一光源部と、前記第一筐体に配置され、前記第一光源部の発する光を所定の配光特性に変換し、前記空間に照射する第一照射部とを有し、前記第一筐体の底面から前記配光特性の光を前記第一照射部によって前記空間に照射する第一発光部と、
一方の端部が前記第一筐体の側面に取り付けられ、他方の端部が前記空間に伸びる複数の軸であって前記複数の軸の各軸は、前記一方の端部が、前記第一筐体の前記側面の周方向に沿って取り付けられる複数の軸と、
前記複数の軸の各他方の端部に接続することで前記複数の軸によって支持されると共に、前記第一照射部の前記配光特性と異なる配光特性の光を前記空間に照射し、かつ、前記第一筐体の側面の周囲を一周する連続形状である第二発光部であって、光を発する第二光源部と、前記第二光源部の光を入射して表面発光することにより、前記第一照射部の前記配光特性と異なる配光特性の光を前記空間に照射する透明性の導光体とを有する第二発光部と
を備え、
前記照明装置は、
側方から見た場合に、前記導光体が前記第一筐体の底面に相当する領域を隠すと共に、
前記第二発光部は、
前記導光体の周囲に、前記導光体から照射された光を反射する反射部材を持たないことを特徴とする。 The lighting device of the present invention is
In a lighting device that irradiates light in space,
A first housing, a first light source unit disposed in the first housing and emitting light, and a light disposed in the first housing and converting the light emitted from the first light source unit into a predetermined light distribution characteristic. A first light emitting unit that irradiates the space with light having the light distribution characteristic from the bottom surface of the first housing;
One end is attached to the side surface of the first housing, and the other end is a plurality of shafts extending into the space. Each shaft of the plurality of shafts has the one end portion of the first housing. A plurality of shafts attached along the circumferential direction of the side surface of the housing;
The space is irradiated with light having a light distribution characteristic different from the light distribution characteristic of the first irradiation unit while being supported by the plurality of axes by connecting to each other end of the plurality of axes, and A second light-emitting part having a continuous shape that goes around the side surface of the first casing, and a surface that emits light from the second light source part that emits light and light from the second light source part. A second light emitting unit having a transparent light guide that irradiates the space with light having a light distribution characteristic different from the light distribution characteristic of the first irradiation unit,
The lighting device includes:
When viewed from the side, the light guide hides an area corresponding to the bottom surface of the first housing, and
The second light emitting unit is
There is no reflective member that reflects light emitted from the light guide around the light guide.

本発明の照明装置により、主光源と副光源とを有する照明装置において、空間的開放感、奥行き感、明るさ感などに係わる照明演出効果を備えた照明装置を提供できる。 With the illumination device of the present invention, an illumination device having a main light source and a sub-light source can be provided that has illumination effects related to a sense of spatial openness, depth, brightness, and the like.

実施の形態１の照明装置１１００を下方斜め方向から見込んだ斜視図。The perspective view which looked at the illuminating device 1100 of Embodiment 1 from the downward diagonal direction. 実施の形態１の照明装置１１００を上方斜め方向から見込んだ斜視図。The perspective view which looked at the illuminating device 1100 of Embodiment 1 from the upper diagonal direction. 実施の形態１の照明装置１１００の側面図。2 is a side view of lighting device 1100 according to Embodiment 1. FIG. 実施の形態１の照明装置１１００を下方から見込んだ図。The figure which anticipated the illuminating device 1100 of Embodiment 1 from the downward direction. 実施の形態１における図４のＡ−Ａ断面図。FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4 in the first embodiment. 実施の形態１における図３のＢ−Ｂ断面図。FIG. 4 is a BB cross-sectional view of FIG. 3 in the first embodiment. 実施の形態１における図３のＢ−Ｂ断面図。FIG. 4 is a BB cross-sectional view of FIG. 3 in the first embodiment. 実施の形態１の第一光源部１２０、第一照射部１３０の構成例を示す断面図。Sectional drawing which shows the structural example of the 1st light source part 120 of Embodiment 1, and the 1st irradiation part 130. FIG. 実施の形態１の第一ＬＥＤ実装基板１２１を示す図。FIG. 3 shows a first LED mounting board 121 according to the first embodiment. 実施の形態１における照明装置１１００の別の構成例を示す斜視図。FIG. 11 is a perspective view illustrating another configuration example of lighting device 1100 according to Embodiment 1. 実施の形態１における照明装置１１００の別の構成例を示す斜視図。FIG. 11 is a perspective view illustrating another configuration example of lighting device 1100 according to Embodiment 1. 実施の形態１における照明装置１１００の別の構成例を示す斜視図。FIG. 11 is a perspective view illustrating another configuration example of lighting device 1100 according to Embodiment 1. 実施の形態２の照明装置１２００を上方斜め方向から見込んだ斜視図。The perspective view which looked at the illuminating device 1200 of Embodiment 2 from the diagonally upward direction. 実施の形態２の照明装置１２００を上方から見込んだ平面図。The top view which looked at the illuminating device 1200 of Embodiment 2 from upper direction. 実施の形態２の照明装置１２００を側方から見込んだ側面図。The side view which looked at the illuminating device 1200 of Embodiment 2 from the side. 実施の形態２における図１４のＣ−Ｃ断面図。CC sectional drawing of Embodiment 14 in Embodiment 2. FIG. 実施の形態３の照明装置１３００の側面図。FIG. 10 is a side view of lighting device 1300 according to Embodiment 3. 実施の形態３の照明装置１３００を上方から見込んだ平面図。The top view which looked at the illuminating device 1300 of Embodiment 3 from upper direction.

実施の形態１．
図１〜図１２を参照して実施の形態１における照明装置１１００を説明する。
図１は、照明装置１１００を下方斜め方向から見込んだ斜視図である。
図２は、照明装置１１００を上方斜め方向から見込んだ斜視図である。
図３は、照明装置１１００の側面図である。
図４は、照明装置１１００を下方から見込んだ図である。
図５は、図４のＡ−Ａ断面図である。
図６は、図３のＢ−Ｂ断面図である。
図７は、図３のＢ−Ｂ断面図である。
図８は、第一光源部１２０、第一照射部１３０の構成例を示す断面図である。
図９は、第一ＬＥＤ実装基板１２１を示す図である。
図１０は、照明装置１１００の別の構成例を示す斜視図である。
図１１は、照明装置１１００の別の構成例を示す斜視図である。
図１２は、照明装置１１００の別の構成例を示す斜視図である。 Embodiment 1 FIG.
With reference to FIGS. 1-12, the illuminating device 1100 in Embodiment 1 is demonstrated.
FIG. 1 is a perspective view of the lighting device 1100 viewed from an obliquely downward direction.
FIG. 2 is a perspective view of the lighting device 1100 as viewed from the upper oblique direction.
FIG. 3 is a side view of the lighting device 1100.
FIG. 4 is a view of the illumination device 1100 viewed from below.
5 is a cross-sectional view taken along the line AA in FIG.
6 is a cross-sectional view taken along line BB in FIG.
7 is a cross-sectional view taken along line BB in FIG.
FIG. 8 is a cross-sectional view illustrating a configuration example of the first light source unit 120 and the first irradiation unit 130.
FIG. 9 is a view showing the first LED mounting substrate 121.
FIG. 10 is a perspective view illustrating another configuration example of the lighting device 1100.
FIG. 11 is a perspective view illustrating another configuration example of the lighting device 1100.
FIG. 12 is a perspective view illustrating another configuration example of the lighting device 1100.

（全体構成）
図２には、各部品の構成関係を符号で記載した。以下、図面を参照して、空間に光を照射する照明装置１１００の構成概要を説明する。 (overall structure)
In FIG. 2, the structural relationship of each component is described with reference numerals. Hereinafter, an outline of the configuration of the illumination device 1100 that irradiates light to a space will be described with reference to the drawings.

実施の形態１の照明装置１１００は、大きく、光を発する第一発光部１００（主発光部）と、第一発光部１００の円筒筐体１１０の側面から伸びる３本の支軸３００と、３本の支軸３００によって支持され、第一発光部１００と配光特性の異なる第二発光部２００（副発光部）とを備えている。また、図２に示すように、照明装置１１００は、電源供給線４００及び電源部５００（これらは第一発光部１００の円筒筐体１１０内部に収納される）を備える。 The illumination device 1100 according to Embodiment 1 is large and has a first light emitting unit 100 (main light emitting unit) that emits light, three support shafts 300 extending from the side surface of the cylindrical housing 110 of the first light emitting unit 100, and 3 The first light emitting unit 100 and a second light emitting unit 200 (sub light emitting unit) having different light distribution characteristics are supported by the spindle 300 of the book. In addition, as illustrated in FIG. 2, the lighting device 1100 includes a power supply line 400 and a power supply unit 500 (which are housed in the cylindrical housing 110 of the first light emitting unit 100).

（第一発光部１００等）
図２に示すように、第一発光部１００は、円筒筐体１１０（第一筐体）、第一光源部１２０、第一光源部１２０の発する光を所定の配光特性に変換し、空間に照射する第一照射部１３０とを備える。後述するが、第一光源部１２０、第一照射部１３０は円筒筐体１１０内部に収納される。支軸３００は、一方の端部３００ａが円筒筐体１１０の側面に取り付けられ、他方の端部３００ｂが空間に伸びる形状である。図２に示すように、第一光源部１２０は、第一ＬＥＤ実装基板１２１、反射板１３１、第一光源用ケース１２２を備えている。第一光源部１２０の具体的な構成は、図８で後述する。 (First light emitting unit 100 etc.)
As shown in FIG. 2, the first light emitting unit 100 converts light emitted from the cylindrical housing 110 (first housing), the first light source unit 120, and the first light source unit 120 into predetermined light distribution characteristics, so that the space And a first irradiating unit 130 for irradiating the light. As will be described later, the first light source unit 120 and the first irradiation unit 130 are accommodated in the cylindrical housing 110. The support shaft 300 has a shape in which one end portion 300a is attached to the side surface of the cylindrical casing 110 and the other end portion 300b extends into the space. As shown in FIG. 2, the first light source unit 120 includes a first LED mounting substrate 121, a reflector 131, and a first light source case 122. A specific configuration of the first light source unit 120 will be described later with reference to FIG.

（第二発光部２００）
図２に示すように、第二発光部２００は、円筒筐体１１０の側面の周囲を一周する連続形状である。第二発光部２００は、第一発光部１００（第一照射部１３０）の配光特性と異なる配光特性の光を空間に照射する。第二発光部２００は、支軸先端筐体２１０、光を発する第二光源部２２０、導光体２３０を備えている。また後述のように第二発光部２００は、導光体２３０の周辺に拡散性透光部材２４０、光反射シート２５０を備えてもよい。また後述するが、導光体２３０は、導光部材２３１と、光拡散パタン２３２とから構成される。導光体２３０は、第二光源部２２０の発する光を入射して発光することにより、第一発光部１００の配光特性と異なる配光特性の光を空間に照射する。
第二発光部２００は、三本の支軸３００のそれぞれの他方の端部３００ｂに接続することで三本のそれぞれの支軸３００によって支持される。図２に示すように、三本の支軸３００は、一方の端部３００ａが、円筒筐体１１０の側面の周方向（Ｙ方向）に沿って取り付けられている。支軸先端筐体２１０、第二光源部２２０、導光体２３０からなる第二発光部２００は、三本の支軸３００の各他方の端部３００ｂに接続することで支持される。 (Second light emitting unit 200)
As shown in FIG. 2, the second light emitting unit 200 has a continuous shape that goes around the side surface of the cylindrical housing 110. The 2nd light emission part 200 irradiates light of the light distribution characteristic different from the light distribution characteristic of the 1st light emission part 100 (1st irradiation part 130) to space. The second light emitting unit 200 includes a spindle tip casing 210, a second light source unit 220 that emits light, and a light guide 230. Further, as will be described later, the second light emitting unit 200 may include a diffusible translucent member 240 and a light reflecting sheet 250 around the light guide 230. As will be described later, the light guide 230 includes a light guide member 231 and a light diffusion pattern 232. The light guide 230 irradiates light with light distribution characteristics different from the light distribution characteristics of the first light emitting unit 100 by emitting light emitted from the second light source unit 220.
The second light emitting unit 200 is supported by the three support shafts 300 by connecting to the other end 300b of each of the three support shafts 300. As shown in FIG. 2, one end portion 300 a of the three support shafts 300 is attached along the circumferential direction (Y direction) of the side surface of the cylindrical housing 110. The second light emitting unit 200 including the support tip housing 210, the second light source unit 220, and the light guide 230 is supported by being connected to the other end 300b of the three support shafts 300.

図２、図４に示すように、第二発光部２００は、導光体２３０が、他方の端部３００ｂの位置に第二光源部２２０が配置された支軸３００である第二光源部配置軸（例えば図２、４で符号３００が付された支軸とする）の他方の端部３００ｂと、第二光源部配置軸に周方向（Ｙ方向）で前方に隣接する支軸の他方の端部３００ｂとを連結すると共に、第二光源部配置軸の他方の端部３００ｂと、第二光源部配置軸に周方向で後方に隣接する支軸の他方の端部３００ｂとを連結する。 As shown in FIGS. 2 and 4, the second light emitting unit 200 includes a second light source unit arrangement in which the light guide 230 is a support shaft 300 in which the second light source unit 220 is arranged at the position of the other end 300 b. The other end 300b of the shaft (for example, a support shaft denoted by reference numeral 300 in FIGS. 2 and 4) and the other end of the support shaft adjacent to the front in the circumferential direction (Y direction) to the second light source unit arrangement shaft The other end portion 300b of the second light source unit arrangement axis and the other end portion 300b of the support shaft that is adjacent to the second light source unit arrangement axis in the circumferential direction are connected to each other.

なお第二発光部２００は、導光体２３０が、第二光源部配置軸の他方の端部３００ｂと、第二光源部配置軸に周方向で隣接する少なくとも一方の前記軸の前記他方の端部とを、連結する構成でもよい。例えば第二光源部配置軸の他方の端部３００ｂと、周方向（Ｙ方向）で前方に隣接する支軸の他方の端部３００ｂとを導光体２３０で連結し、周方向（Ｙ方向）で後方に隣接する支軸の他方の端部３００ｂとは連結部をもたいないか（導光体の部分が無い形状）、あるいは、後述の実施の形態３に示す第二光源部間支軸３００−１で連結（導光体２３０に第二光源部間支軸３００−１を代替）してもよい。 In the second light emitting unit 200, the light guide 230 has the other end 300b of the second light source unit arrangement axis and the other end of at least one of the axes adjacent to the second light source unit arrangement axis in the circumferential direction. The structure which connects a part may be sufficient. For example, the other end portion 300b of the second light source unit arrangement shaft and the other end portion 300b of the support shaft adjacent to the front in the circumferential direction (Y direction) are connected by the light guide 230, and the circumferential direction (Y direction). And the other end portion 300b of the support shaft adjacent to the rear side does not have a connecting portion (a shape without a light guide portion), or a support shaft between second light source portions shown in a third embodiment described later. 300-1 may be connected (the light guide 230 is replaced with the second light source support shaft 300-1).

（第一光源部１２０）
図５、図８に示すように、第一発光部１００は、第一光源部１２０、第一照射部１３０を金属あるいは樹脂の円筒筐体１１０の内部に備えている。第一光源部１２０は、図２の部品構成に示すように、ＬＥＤなどの発光素子を実装した第一ＬＥＤ実装基板１２１、第一光源用ケース１２２からなる。 (First light source 120)
As shown in FIGS. 5 and 8, the first light emitting unit 100 includes a first light source unit 120 and a first irradiation unit 130 inside a cylindrical housing 110 made of metal or resin. As shown in the component configuration of FIG. 2, the first light source unit 120 includes a first LED mounting board 121 on which a light emitting element such as an LED is mounted, and a first light source case 122.

（第二光源部２２０）
図２の部品構成に示すように第二光源部２２０は、ＬＥＤ実装基板２２１、放熱性支持体２２２、リード線２２３を備える。また図４、図５等に示すように、支軸３００の先端には、ＬＥＤ発光素子（第一光源部１２０のＬＥＤと同じであっても異なるものでもよい）を有する第二光源部２２０が配置されている。第二光源部２２０は、複数の支軸３００のうちの少なくともいずれかの支軸の他方の端部３００ｂの位置に配置されている。図４の例では、第二光源部２２０は、三本の支軸３００の各端部３００ｂの位置に夫々配置されているが、少なくともいずれかの支軸３００の他方の端部３００ｂに配置されても構わない。 (Second light source unit 220)
As shown in the component configuration of FIG. 2, the second light source unit 220 includes an LED mounting substrate 221, a heat dissipation support 222, and lead wires 223. As shown in FIGS. 4 and 5 and the like, a second light source unit 220 having an LED light emitting element (which may be the same as or different from the LED of the first light source unit 120) is provided at the tip of the support shaft 300. Has been placed. The second light source unit 220 is disposed at the position of the other end portion 300 b of at least one of the plurality of support shafts 300. In the example of FIG. 4, the second light source unit 220 is disposed at the position of each end 300 b of the three support shafts 300, but is disposed at the other end 300 b of at least one of the support shafts 300. It doesn't matter.

（電源部５００）
図５に示すように、第一発光部１００および第二発光部２００の光源に電源を供給する電源部５００が、円筒筐体１１０の内部に収められる。なお図１のように、電源部５００には、照明装置１１００の設置面（例えば天井面）から電源供給線４００（または、電源供給線を備えた器具取付け部）を介し電源供給される。 (Power supply unit 500)
As shown in FIG. 5, a power supply unit 500 that supplies power to the light sources of the first light emitting unit 100 and the second light emitting unit 200 is housed inside the cylindrical housing 110. As shown in FIG. 1, power is supplied to the power supply unit 500 from the installation surface (for example, the ceiling surface) of the lighting device 1100 via the power supply line 400 (or an appliance mounting unit including the power supply line).

（第一光源部１２０）
以下、図８、図９を用いて、第一光源部１２０をさらに説明する。第一光源部１２０は、図１のように、主に直下方向の明るさを確保する光源部である。第一光源部１２０は、例えばＬＥＤパッケージ１０を用いて構成される。図８は、第一光源部１２０の縦断面構造例を示す。図９は、図８の第一光源部１２０をＸ方向から見た図である。第一光源部１２０は、図２の部品構成に示すように、ＬＥＤパッケージ１０を実装した第一ＬＥＤ実装基板１２１と、第一光源用ケース１２２とで構成される。また、第一光源部１２０には、第一ＬＥＤ実装基板１２１の周囲に設けられた反射板１３１、及び配光特性を調整するための「レンズ系、拡散シート、表面カバー」などからなる光学系部材１３２が取り付けられる。反射板１３１と光学系部材１３２とは、第一光源部１２０のＬＥＤパッケージ１０の発する光を所定の配光特性に変換し、空間に照射する第一照射部１３０を構成する。図８に示すように、第一光源用ケース１２２は、第一ＬＥＤ実装基板１２１、反射板１３１、光学系部材１３２を内部に収容する。図８に示す反射板１３１は、全部のＬＥＤパッケージ１０を囲むように設けているが、個々のＬＥＤパッケージ１０を囲む形状の反射板であってもよい。図８に示すような第一光源部１２０及び第一照射部１３０の構成により、主に直下方向の配光特性（ビーム角度など）が調整可能となり所望の光の広がりを実現できる。 (First light source 120)
Hereinafter, the first light source unit 120 will be further described with reference to FIGS. 8 and 9. As shown in FIG. 1, the first light source unit 120 is a light source unit that mainly ensures brightness in a direct downward direction. The first light source unit 120 is configured using, for example, the LED package 10. FIG. 8 shows an example of a longitudinal sectional structure of the first light source unit 120. FIG. 9 is a view of the first light source unit 120 of FIG. 8 as viewed from the X direction. As shown in the component configuration of FIG. 2, the first light source unit 120 includes a first LED mounting board 121 on which the LED package 10 is mounted, and a first light source case 122. The first light source unit 120 includes an optical system including a reflecting plate 131 provided around the first LED mounting substrate 121 and a “lens system, a diffusion sheet, a surface cover” for adjusting light distribution characteristics, and the like. A member 132 is attached. The reflecting plate 131 and the optical system member 132 constitute a first irradiation unit 130 that converts light emitted from the LED package 10 of the first light source unit 120 into a predetermined light distribution characteristic and irradiates the space. As shown in FIG. 8, the first light source case 122 accommodates the first LED mounting substrate 121, the reflector 131, and the optical system member 132 therein. The reflector 131 shown in FIG. 8 is provided so as to surround all the LED packages 10, but may be a reflector having a shape surrounding each LED package 10. With the configuration of the first light source unit 120 and the first irradiating unit 130 as shown in FIG. 8, the light distribution characteristics (such as the beam angle) in the direct downward direction can be mainly adjusted, and a desired light spread can be realized.

図８、図９では第一光源部１２０にＬＥＤパッケージ１０を用いる例を説明したが、ＬＥＤパッケージ１０の代わりに、例えばハロゲン電球、白熱球、電球型蛍光ランプ、メタルハライドランプといった光源を用いてもよい。 8 and 9, the example in which the LED package 10 is used for the first light source unit 120 has been described. However, instead of the LED package 10, a light source such as a halogen bulb, an incandescent bulb, a bulb-type fluorescent lamp, or a metal halide lamp may be used. Good.

（第二発光部２００）
次に第二発光部２００について説明する。第二発光部２００は、図４、図５等に示すように、支軸３００の先端（他方の端部）に配置された支軸先端筐体２１０の内部に第二光源部２２０を収納する。そして、図１、図２、図４等に示すように、支軸先端筐体２１０の間は，第二光源部２２０を光源として表面発光する導光体２３０を連結している。 (Second light emitting unit 200)
Next, the second light emitting unit 200 will be described. As shown in FIGS. 4, 5, etc., the second light emitting unit 200 houses the second light source unit 220 inside the support shaft tip housing 210 disposed at the tip (the other end) of the support shaft 300. . As shown in FIGS. 1, 2, 4, and the like, a light guide 230 that emits surface light is connected between the spindle end cases 210 using the second light source 220 as a light source.

図６、図７は、図３のＢ−Ｂ断面に相当する、支軸先端筐体２１０の内部構造を示す断面図である。図７は、第二発光部２００が、図６にたいして、さらに、拡散性透光部材２４０と光反射シート２５０とを備えた構成である。図６、図７は、第二光源部２２０と導光体２３０との接続部付近の横断面の構成を示している。照明装置１１００の導光体２３０は、図４に示すように、照明装置１１００の中心周りに約１２０度おきに配置された３本の支軸３００の間に配置された構成である。それぞれの導光体２３０は、照明装置１１００の中心１５まわりに高さの低い中空円筒を３分割したような円弧状の形態としている。照明装置１１００は、最外面となる第二発光部２００（３つの導光体２３０）が全面発光して「円形の帯状」となる。このため、図１のように取り付けられた場合、「円形の帯状」に発光するので、照明装置１１００は、見込む方向性によらずほぼ同じ外観が得られる。すなわち、「円形の帯状」に発光するので、どの方向から照明装置１１００を見上げても、発光状態の外観に極端な違いはなく、均一感がある。よって、任意照明空間に設置した場合でも形状による違和感が少なく、意匠性を高めることができる。 6 and 7 are cross-sectional views showing the internal structure of the support shaft tip housing 210 corresponding to the BB cross section of FIG. FIG. 7 shows a configuration in which the second light emitting unit 200 further includes a diffusible translucent member 240 and a light reflecting sheet 250 with respect to FIG. 6. 6 and 7 show a cross-sectional configuration in the vicinity of the connection portion between the second light source unit 220 and the light guide 230. As shown in FIG. 4, the light guide 230 of the illuminating device 1100 has a configuration in which the light guide 230 is disposed between the three support shafts 300 that are disposed about every 120 degrees around the center of the illuminating device 1100. Each light guide 230 has a circular arc shape in which a hollow cylinder with a low height is divided into three around the center 15 of the lighting device 1100. In the illuminating device 1100, the second light emitting unit 200 (three light guides 230) which is the outermost surface emits light on the entire surface to form a “circular band”. For this reason, when it is attached as shown in FIG. 1, it emits light in a “circular band shape”, so that the illumination device 1100 can obtain substantially the same appearance regardless of the directionality to be expected. That is, since the light is emitted in a “circular band shape”, there is no extreme difference in the appearance of the light emission state regardless of the direction from which the illumination device 1100 is looked up, and there is a uniform feeling. Therefore, even when installed in an arbitrary illumination space, there is little discomfort due to the shape, and the design can be improved.

（第二光源部２２０の高効率）
横断面である図６の構成では、ＬＥＤ光源（ＬＥＤパッケージ１０）を実装した２つのＬＥＤ実装基板２２１を放熱性支持体２２２（放熱性部材））に背中合わせに配置し、これを第二光源部２２０としている。すなわち図６に示すように、２つのＬＥＤ実装基板２２１は、実装面に対して裏面となる背面が、放熱性支持体２２２を挟み、かつ、放熱性支持体２２２に密着している。また、一方のＬＥＤ実装基板２２１（図６で導光体２３０を描いている側）は、各ＬＥＤ発光面１１が、第二光源部配置軸の他方の端部３００ｂと、第二光源部配置軸に周方向で前方に隣接する支軸３００の他方の端部３００ｂとを連結する導光体２３０の端部の入光端面２３０ａに対向して配設されている。他方のＬＥＤ実装基板２２１（図６で導光体２３０を省略している側）は、各ＬＥＤ発光面１１が、第二光源部配置軸の他方の端部３００ｂと、第二光源部配置軸に周方向で後方に隣接する支軸３００の他方の端部３００ｂとを連結する導光体２３０（図６では省略）の端部の端面に対向して配設されている。ここでＬＥＤ点灯時、自己発熱による周囲温度上昇が顕著になると、一般にはＬＥＤの発光効率が低下する。そこで、それを抑制するためＬＥＤ実装基板２２１には例えば金属系やセラミックス系の放熱性基板を用い、さらに、放熱性支持体２２２も熱伝導率のよい金属等を用いる。また、支軸先端筐体２１０も、例えばアルミなどの放熱性材料で構成する。そして、放熱性支持体２２２の表面と支軸先端筐体２１０の内表面とが、広い面積で接触（破線で示す範囲１４）するように組み込む。この際、効率よく熱を支軸３００に伝えるため、放熱性支持体２２２と支軸３００の内表面の間に熱伝導性シート材料を挟む構成としてもよい。また、放熱性向上の面から、支軸先端筐体２１０に繋がっている支軸３００自体も、アルミなどの放熱性材料で構成してもよい。 (High efficiency of the second light source unit 220)
In the configuration of FIG. 6 which is a cross-sectional view, two LED mounting boards 221 mounted with LED light sources (LED package 10) are arranged back to back on a heat radiating support 222 (heat radiating member), and this is the second light source section. 220. That is, as shown in FIG. 6, the back surfaces of the two LED mounting substrates 221 that are the back surfaces of the mounting surfaces sandwich the heat dissipation support 222 and are in close contact with the heat dissipation support 222. Further, one LED mounting substrate 221 (the side on which the light guide body 230 is drawn in FIG. 6) is arranged such that each LED light emitting surface 11 has the other end 300b of the second light source unit arrangement axis and the second light source unit arrangement. The light guide 230 is disposed so as to face the light incident end face 230a that connects the other end 300b of the support shaft 300 that is adjacent to the shaft in the circumferential direction on the front side. On the other LED mounting substrate 221 (the side where the light guide 230 is omitted in FIG. 6), each LED light-emitting surface 11 has the other end portion 300b of the second light source unit arrangement axis and the second light source unit arrangement axis. The light guide 230 (not shown in FIG. 6) that connects the other end 300b of the support shaft 300 that is adjacent to the rear in the circumferential direction is disposed to face the end surface of the end. Here, when the ambient temperature rises due to self-heating when the LED is turned on, the light emission efficiency of the LED generally decreases. In order to suppress this, for example, a metal-based or ceramic-based heat radiating substrate is used for the LED mounting substrate 221, and a metal having a good thermal conductivity is also used for the heat radiating support 222. Further, the spindle end case 210 is also made of a heat dissipating material such as aluminum. And it incorporates so that the surface of the heat-radiating support body 222 and the inner surface of the support shaft tip housing 210 may come into contact with each other over a wide area (range 14 indicated by a broken line). At this time, in order to efficiently transmit heat to the support shaft 300, a heat conductive sheet material may be sandwiched between the heat dissipating support 222 and the inner surface of the support shaft 300. In addition, from the viewpoint of improving heat dissipation, the support shaft 300 itself connected to the support shaft tip casing 210 may be made of a heat dissipation material such as aluminum.

（リード線）
ここで図５のように，第二光源部２２０の電源供給線（リード線２２３）は、支軸３００の内部を通して第一発光部１００内の電源部５００に繋がる構成としている。第二光源部２２０は、高周波点灯インバータが不可欠な蛍光ランプ管とは異なるＬＥＤを使用するため、リード線長が長くなっても安定駆動が得られる。よって、図４のように、複数位置（各支軸３００の先端位置）に光源を分散配置できる。
さらにＬＥＤ自体が小さい光源であるため、本例のような省スペース領域にも十分な発光量を備えたＬＥＤ光源を収納することができる。 (Lead)
Here, as shown in FIG. 5, the power supply line (lead wire 223) of the second light source unit 220 is configured to be connected to the power supply unit 500 in the first light emitting unit 100 through the inside of the support shaft 300. Since the second light source unit 220 uses an LED different from the fluorescent lamp tube in which a high-frequency lighting inverter is indispensable, stable driving can be obtained even if the lead wire length becomes long. Therefore, as shown in FIG. 4, the light sources can be dispersedly arranged at a plurality of positions (tip positions of the respective support shafts 300).
Furthermore, since the LED itself is a small light source, an LED light source having a sufficient amount of light emission can be accommodated in a space-saving area as in this example.

（導光体２３０）
第二光源部２２０は、図６に示すように、ＬＥＤパッケージ１０のＬＥＤ発光面１１が、導光体２３０の端部（ＬＥＤの光が入光する入光端面２３０ａ）に対向するようにＬＥＤ実装基板２２１を配置する。
（１）導光体２３０は、例えばアクリルやポリカーボなどの透光性樹脂材料である導光部材２３１と、側面に細かい光拡散パタン２３２（シルク白色印刷、凹凸パタン形成など）とから構成される。図７の説明で後述するが、第二発光部２００は、導光体２３０に加えて、拡散性透光部材２４０や光反射シート２５０を備えてもよい。ＬＥＤ光１１ａは導光体２３０の入光端面２３０ａから導光体内に入射し、一部が導光体２３０の屈折率に従った正反射等により導光体内部を伝搬し、さらに一部の光は光拡散パタン２３２で反射し、光の方向性が変えられ導光体表面より発光する。光拡散パタン２３２の配置密度は、光源側の近くで疎、光源から遠い部分で密となるように構成する。この構成により、導光体上の輝度均斉度を高めることができる。
（２）また、導光体２３０の他の構成として、導光部材２３１を、内部に光拡散材を含んだ光拡散性の樹脂材料としてもよい。
（３）また、導光体２３０の入光端面２３０ａは入光効率を高めるため表面を磨いた状態とする。また、導光体２３０とＬＥＤパッケージ１０の接続付近は支軸先端筐体２１０で覆うように構成し、それら繋ぎ目での乱反射する光が照明装置１１００の外部へ漏れ出すことを防ぐ。
（４）本構成では、ＬＥＤパッケージ１０の発光面に対する導光体２３０の入光部厚みＨ（図２の寸法Ｈ）を厚くとれる（後述する図１１の円筒状の導光体の場合には導光体幅Ｂ２（図１１）も広くできる）。したがって、入光効率を高めることができ、第二発光部２００の発光効率を高めることができる。よって、第二発光部２００の奏でる照明演出効果を高めることができる。
（５）ここで図６に示すＬＥＤ実装基板２２１の表面２２１−１や支軸先端筐体２１０の裏側２１０ａを高反射面とすることで、光の利用効率を高めることができる。
（６）また支軸先端筐体２１０のＬＥＤ光源部を覆う幅Ｂ１（図２，図６に示す寸法Ｂ１）によって、支軸先端筐体２１０を斜め下方向から見込んだ際の光源イメージに強弱が得られる。すなわち、導光体２３０の導光部材２３１は透光性材料であるのでＬＥＤ実装基板２２１は外観において透けて見えるが、図６において、他の構造をそのままとして寸法Ｂ１を長く、あるいは短くすることで外観におけるＬＥＤ実装基板２２１の見え方が変わる。「支軸先端筐体２１０を斜め下方向から見込んだ際の光源イメージに強弱」とは、この意味である。意匠性を重視する場合には、意匠性に好都合な幅Ｂ１で外観的な調整をすればよく、また照明効率を重視する場合には例えば十分にＬＥＤを覆うように幅Ｈで調整を行えばよい。 (Light guide 230)
As shown in FIG. 6, the second light source unit 220 is configured so that the LED light emitting surface 11 of the LED package 10 faces the end of the light guide 230 (the light incident end surface 230 a on which the LED light enters). A mounting substrate 221 is disposed.
(1) The light guide 230 is composed of a light guide member 231 that is a translucent resin material such as acrylic or polycarbonate, and a fine light diffusion pattern 232 (silk white printing, uneven pattern formation, etc.) on the side surface. . As will be described later with reference to FIG. 7, the second light emitting unit 200 may include a diffusible light transmitting member 240 and a light reflecting sheet 250 in addition to the light guide 230. The LED light 11a enters the light guide through the light incident end face 230a of the light guide 230, a part of which propagates through the light guide by specular reflection according to the refractive index of the light guide 230, and a part of the light. The light is reflected by the light diffusion pattern 232, the directionality of the light is changed, and light is emitted from the surface of the light guide. The arrangement density of the light diffusion patterns 232 is configured to be sparse near the light source side and dense at a portion far from the light source. With this configuration, the luminance uniformity on the light guide can be increased.
(2) As another configuration of the light guide 230, the light guide member 231 may be a light diffusing resin material including a light diffusing material therein.
(3) Further, the light incident end face 230a of the light guide 230 is polished to improve the light incident efficiency. In addition, the vicinity of the connection between the light guide 230 and the LED package 10 is configured to be covered with the spindle end case 210 to prevent the light that is irregularly reflected at these joints from leaking out of the lighting device 1100.
(4) In this configuration, the light incident portion thickness H (dimension H in FIG. 2) of the light guide 230 with respect to the light emitting surface of the LED package 10 can be increased (in the case of a cylindrical light guide in FIG. 11 described later). The light guide width B2 (FIG. 11) can also be increased). Therefore, the light incident efficiency can be increased, and the light emission efficiency of the second light emitting unit 200 can be increased. Therefore, the lighting effect produced by the second light emitting unit 200 can be enhanced.
(5) Here, by using the surface 221-1 of the LED mounting substrate 221 and the back side 210a of the spindle tip housing 210 shown in FIG.
(6) The width B1 (dimension B1 shown in FIGS. 2 and 6) that covers the LED light source portion of the spindle tip housing 210 is strong and weak in the light source image when the spindle tip housing 210 is viewed obliquely from below. Is obtained. That is, since the light guide member 231 of the light guide 230 is made of a translucent material, the LED mounting substrate 221 can be seen through in appearance, but in FIG. Thus, the appearance of the LED mounting substrate 221 in the appearance changes. This means that “the strength of the light source image when the spindle tip housing 210 is viewed obliquely from below”. When emphasizing the design, it is only necessary to adjust the appearance with the width B1 that is convenient for the design, and when emphasizing the illumination efficiency, for example, the adjustment with the width H so as to sufficiently cover the LED. Good.

図６の構成では、導光体２３０の外側表面に光学部材を設けていない。図６のように導光体２３０の外周側に何も光学部材を設けなければ、光拡散パタン２３２で反射する光が導光体外側表面、あるいは導光体内側で発光する。したがって、導光体２３０は、透明導光体でありながら消灯時は光拡散パタン２３２がうっすらと見えるような意匠効果を有しつつ、点灯時には照明装置１１００の内表面（円筒筐体１１０や支軸３００の表面など）や天井面方向を明るく照らすことができる。さらに、点消灯状態によらず導光体２３０は透光性であるので透けて見えるため、照明装置１１００の中心部や、支軸３００、導光体２３０の反対側の空間も視界に入れることができる。よって、開放感や奥行き感を備える、意匠性に優れた照明装置を提供できる。また消灯時には、導光体２３０の備える光拡散パタン２３２が陰影として浮かび上がる。これも照明装置１１００に高い意匠性を与える要素であり、光拡散パタン２３２に点在する微小拡散パタン自体を、規則的な模様や意味のある形状（例えば花柄など）に形成してもよい。 In the configuration of FIG. 6, no optical member is provided on the outer surface of the light guide 230. If no optical member is provided on the outer peripheral side of the light guide 230 as shown in FIG. 6, light reflected by the light diffusion pattern 232 is emitted on the outer surface of the light guide or on the inner side of the light guide. Therefore, the light guide 230 is a transparent light guide, and has a design effect such that the light diffusion pattern 232 can be seen slightly when the light is turned off, while the inner surface of the lighting device 1100 (the cylindrical housing 110 and the support) when turned on. The surface of the shaft 300 and the direction of the ceiling surface can be brightly illuminated. Further, since the light guide 230 is transparent regardless of the light-off state, the light guide 230 can be seen through. Therefore, the central portion of the lighting device 1100, the support shaft 300, and the space on the opposite side of the light guide 230 are also included in the field of view. Can do. Therefore, it is possible to provide an illuminating device having a sense of openness and a feeling of depth and having excellent design. When the light is turned off, the light diffusion pattern 232 included in the light guide 230 appears as a shadow. This is also an element that imparts high designability to the lighting device 1100, and the minute diffusion patterns themselves scattered in the light diffusion pattern 232 may be formed into a regular pattern or a meaningful shape (for example, a floral pattern). .

（１）以上のように構成した照明装置１１００においては、照明装置１１００を見込む際、図１に示すように、支軸３００の間から天井面を視界に入れることができる（構成次第では本装置の照明光により照明された天井面を見ることができる）。よって、照明装置１１００を吊り下げて使用するような場合でも、空間開放感や空間明るさ感を十分に与えることが可能である。なお、照明装置１１００は必ずしも吊り下げる形で使用する必要はなく、第一発光部１００を天井直下付けや埋め込み可能な構成としてもよい。
（２）さらに外観的には、照明装置１１００は図１に示すように帯状の導光体２３０を備える構成であるため、装置中心部（第一発光部１００、支軸３００など）を照明する効果や、装置側面側への広配光効果を有する。
（３）また、照明装置１１００では、透光性の導光体２３０の表面から発する光は周囲に柔らかい光を与える。よって、異なる配光特性の第一発光部１００の光との配光バランス（調和）を考慮しながら、被照面の中心や、周辺の照度分布調整が可能となる。
（４）また、導光体２３０の周囲に拡散カバー（拡散性透光部材）や反射材料を設けない構成とすれば、透光性の導光体２３０から離れた位置にある円筒筐体１１０や、天井面などを、導光体２３０の発光によって照明された状態で観察できる。
（５）また、照明装置１１００を点灯しない場合でも、導光体２３０が透明性を有するため、やはり空間の開放感を与える効果を有する。
（６）よって、照明装置１１００によれば、以上のような従来にない照明演出効果を有する照明器具を提供できる。 (1) In the illuminating device 1100 configured as described above, when looking into the illuminating device 1100, as shown in FIG. 1, the ceiling surface can be put into view from between the support shafts 300 (this device depends on the configuration). You can see the ceiling illuminated by the light of Therefore, even when the lighting device 1100 is used while being suspended, it is possible to provide a feeling of space opening and a feeling of space brightness. Note that the lighting device 1100 is not necessarily used in a suspended form, and the first light emitting unit 100 may be configured to be directly attached to the ceiling or embedded.
(2) Further, in terms of appearance, the illumination device 1100 is configured to include a strip-shaped light guide 230 as shown in FIG. 1, and therefore illuminates the central portion of the device (the first light emitting unit 100, the support shaft 300, etc.). Effect and a wide light distribution effect on the side surface of the apparatus.
(3) In the lighting device 1100, the light emitted from the surface of the translucent light guide 230 gives soft light to the surroundings. Therefore, it is possible to adjust the illuminance distribution in the center of the illuminated surface and in the periphery while considering the light distribution balance (harmonicity) with the light of the first light emitting unit 100 having different light distribution characteristics.
(4) In addition, if a diffusion cover (diffusible light-transmitting member) or a reflective material is not provided around the light guide 230, the cylindrical housing 110 located at a position away from the light-transmitting light guide 230. In addition, the ceiling surface or the like can be observed in a state illuminated by light emitted from the light guide 230.
(5) Even when the lighting device 1100 is not turned on, the light guide 230 has transparency, so that it also has an effect of giving a sense of openness to the space.
(6) Therefore, according to the illuminating device 1100, the illuminating device which has the illumination effect which is not in the past as mentioned above can be provided.

（拡散性透光部材２４０、光反射シート２５０）
図７は、第二発光部２００が、導光体２３０の周囲近傍に、拡散性透光部材２４０、光反射シート２５０を有する構成である。すなわち図７のように、第二発光部２００は、導光体２３０の外表面側に拡散性透光部材２４０と、内表面側（円筒筐体側に面する導光体２３０の内側）に光反射シート２５０（反射部材）との何れか、あるいは両者を備える構成としてもよい。光反射シート２５０を配置することによって、導光体２３０の内側発光機能を無くすかわりに表面側へ効率よく光照射を行うことができる。また、導光体２３０の外表面側に拡散性透光部材２４０を配置することによって、表面の見た目の発光強度を均斉化させる効果を得ることができる。 (Diffusible translucent member 240, light reflecting sheet 250)
FIG. 7 shows a configuration in which the second light emitting unit 200 includes a diffusible translucent member 240 and a light reflecting sheet 250 in the vicinity of the periphery of the light guide 230. That is, as shown in FIG. 7, the second light emitting unit 200 includes a diffusible translucent member 240 on the outer surface side of the light guide 230 and light on the inner surface side (inside the light guide 230 facing the cylindrical housing side). It is good also as a structure provided with either the reflection sheet 250 (reflection member) or both. By disposing the light reflecting sheet 250, it is possible to efficiently irradiate the surface side with light instead of eliminating the inner light emitting function of the light guide 230. Further, by disposing the diffusible light transmitting member 240 on the outer surface side of the light guide 230, an effect of equalizing the apparent light emission intensity on the surface can be obtained.

また、導光体２３０は、図２に示す上側端面２３０ｂ、下側端面２３０ｃにはとくに反射部材を設けず、表面にやや凹凸がある状態で光が抜けるような構成としている。この場合、上側端面２３０ｂにおいて上方向に発光する光は天井面を柔らかく照明する効果を有し、装置周辺の空間の明るさ感を向上させる。また下側端面２３０ｃから出る光は中央の第一発光部１００（円筒筐体１１０の底面）からの光と共に発光面となるので、装置の明るさ感が向上するとともに、従来にない空間演出を行うことがきできる。反対に、上下端面を高反射材で塞ぐと、逆に導光体２３０の側面への発光効率の良好な照明装置を提供できる。 In addition, the light guide 230 is configured such that light does not pass through the upper end face 230b and the lower end face 230c shown in FIG. In this case, the light emitted upward in the upper end surface 230b has an effect of softly illuminating the ceiling surface, and improves the feeling of brightness in the space around the device. Further, the light emitted from the lower end face 230c becomes a light emitting surface together with the light from the central first light emitting unit 100 (the bottom surface of the cylindrical housing 110), so that the brightness of the device is improved and an unprecedented space effect is achieved. Can be done. On the other hand, when the upper and lower end surfaces are closed with a highly reflective material, it is possible to provide an illuminating device with good luminous efficiency on the side surface of the light guide 230.

（第二発光部形状のバリエーション）
照明装置１１００は支軸３００が３本の構成を示したが、支軸３００の数は３本に限らない。図１０に示すように、例えば４本とし、第二発光部２００の外観も四角形とするように構成してもよい。さらに、照明装置１１００は、図１、図２に示すように、外観的には高さ方向（Ｈ方向）に広い帯状の円環導光体を用いたが、図１１に示すような、逆に幅方向（寸法Ｂ２方向）に広い円環導光体を用いてもよい。あるいは図１２に示すように、チューブ状（断面が円、楕円、多角形）の円環導光体を用いてもよい。これら、図１０〜図１２に示す形状の導光体を使用しても、照明装置１１００と同様の効果を得ることができる。 (Variation of second light emitting part shape)
Although the lighting device 1100 has a configuration with three support shafts 300, the number of support shafts 300 is not limited to three. As shown in FIG. 10, for example, the number may be four, and the second light emitting unit 200 may be configured to have a rectangular appearance. Further, as shown in FIGS. 1 and 2, the illumination device 1100 uses a belt-shaped annular light guide that is wide in the height direction (H direction) as shown in FIGS. Alternatively, an annular light guide that is wide in the width direction (dimension B2 direction) may be used. Or as shown in FIG. 12, you may use the annular light guide of a tube shape (a cross section is a circle | round | yen, an ellipse, and a polygon). Even if the light guides having the shapes shown in FIGS. 10 to 12 are used, the same effect as that of the lighting device 1100 can be obtained.

（側面形状）
また、図３のように、照明装置１１００を側面から見込んだ際に、第二発光部２００の発光面の内部（導光体の領域内部）に、第一発光部１００の発光面１１０ａ（円筒筐体１１０の底面）が含まれるように構成する。それにより側面方向から見て、直接、発光面１１０ａから照射される光（第二光源部２２０と異なる配光の光）が視野に入ることを防ぐことができる。さらに、第二発光部２００（導光体）の発する光で円筒筐体１１０や支軸３００を柔らかく照明することができ、意匠的に優れた照明装置を提供できる。すなわち第一発光部１００は、円筒筐体１１０の発光面１１０ａから所定の配光特性の光を第一照射部１３０によって空間に照射する。そして照明装置１１００は、側方から見た場合に、導光体２３０が円筒筐体１１０の発光面１１０ａ（底面に相当する領域）を隠す。また、第一発光部１００に対する第二光源部２２０の相対位置を、調整可能な構成としてもよい。すなわち、図３において支軸先端筐体２１０、第二光源部２２０及び導光体２３０からなる第二発光部２００を円筒筐体１１０に対して上下に調整可能な構成とする。第一発光部１００に対して第二発光部２００の相対位置を調整することで、装置配光や装置中心部（円筒筐体１１０や支軸３００）の照明状態を変えることができるので、空間に応じた照明環境を提供できる。 (Side shape)
3, when the illumination device 1100 is viewed from the side, the light emitting surface 110a (cylindrical) of the first light emitting unit 100 is disposed inside the light emitting surface of the second light emitting unit 200 (inside the region of the light guide). The bottom surface of the housing 110 is included. Thereby, it can prevent that the light (light of light distribution different from the 2nd light source part 220) irradiated from the light emission surface 110a directly enters into a visual field seeing from the side direction. Furthermore, the cylindrical housing 110 and the support shaft 300 can be softly illuminated with the light emitted from the second light emitting unit 200 (light guide), and an illumination device with excellent design can be provided. That is, the first light emitting unit 100 irradiates the space with light having a predetermined light distribution characteristic from the light emitting surface 110 a of the cylindrical housing 110 by the first irradiation unit 130. In the illumination device 1100, the light guide 230 hides the light emitting surface 110 a (region corresponding to the bottom surface) of the cylindrical housing 110 when viewed from the side. Moreover, it is good also as a structure which can adjust the relative position of the 2nd light source part 220 with respect to the 1st light emission part 100. FIG. That is, in FIG. 3, the second light emitting unit 200 composed of the spindle end case 210, the second light source unit 220, and the light guide 230 is configured to be adjustable up and down with respect to the cylindrical case 110. By adjusting the relative position of the second light emitting unit 200 with respect to the first light emitting unit 100, it is possible to change the device light distribution and the illumination state of the device center (the cylindrical housing 110 and the support shaft 300). Can provide lighting environment according to

（光源の光色）
また、照明装置１１００の第一光源部１２０と第二光源部２２０とは、光源の光色が異なるように構成してもよい。例えば、ＪＩＳ照明色の光色を適用する例として、第一光源部１２０のＬＥＤ光色を温白色とし、第二光源部２２０のＬＥＤを電球色として構成する。照明装置１１００の適用空間に応じ、異なる光色バランスを与えることで多様な照明演出効果を与えることができる。また各光源に高演色性の光源を用いることで、例えばダイニング設置用途に使用する場合にも、被照明体の演色効果（色再現性）を高めることができ、照明装置１１００の演色効果をさらに向上できる。 (Light color of light source)
Moreover, you may comprise the 1st light source part 120 and the 2nd light source part 220 of the illuminating device 1100 so that the light color of a light source may differ. For example, as an example of applying a light color of JIS illumination color, the LED light color of the first light source unit 120 is warm white, and the LED of the second light source unit 220 is configured as a light bulb color. Various lighting effects can be provided by providing different light color balances according to the application space of the lighting device 1100. In addition, by using a high color rendering light source for each light source, for example, when used for a dining installation, the color rendering effect (color reproducibility) of the object to be illuminated can be enhanced, and the color rendering effect of the lighting device 1100 can be further increased. Can be improved.

（個別調光）
また、第一光源部１２０と第二光源部２２０とを個別に調光可能な構成としてもよい。例えば第一光源部１２０と第二光源部２２０とに調光可能な点灯装置を個別に設ける。照明装置１１００の設置シーンに応じて装置中心下方を主に明るくしたり（第一光源部１２０を明るく、第二光源部２２０の明るさを抑えて使用するなど）、逆に装置中心下方を暗くしたり（第一光源部１２０を暗くし、第二光源部２２０をやや明るめに調整するなど）することも可能である。本構成により、２つの光源を異なる強度バランスで発光させることができるため、多様な照明演出効果を与えることができる。これは両者光源の光色が異なる場合でも、やはり照明空間演出の幅を広げることができる。また、照明装置１１００内にタイマや演算装置を設けることで、例えば生活シーン、天候、時刻に合わせたような自動調光／調色にも対応可能でき、装置外部にスライドスイッチ等を設けるような構成とすれば手動調光／調色も可能である。 (Individual dimming)
Moreover, it is good also as a structure which can light-control the 1st light source part 120 and the 2nd light source part 220 separately. For example, lighting devices capable of dimming are individually provided in the first light source unit 120 and the second light source unit 220. Depending on the installation scene of the illuminating device 1100, the lower part of the center of the apparatus is mainly brightened (the first light source unit 120 is brightened and the brightness of the second light source unit 220 is used, for example). (The first light source unit 120 is darkened and the second light source unit 220 is adjusted slightly brighter). With this configuration, since the two light sources can emit light with different intensity balances, various lighting effects can be provided. Even if the light colors of the two light sources are different from each other, the width of the illumination space effect can be widened. In addition, by providing a timer or an arithmetic unit in the lighting device 1100, for example, it is possible to cope with automatic dimming / color matching according to a living scene, weather, and time, and a slide switch or the like is provided outside the device. If it is configured, manual light control / color control is also possible.

実施の形態２．
図１３〜図１６は、実施の形態２の照明装置１２００を示す。照明装置１２００は照明装置１１００と第二発光部２００の構成が異なる。
図１３は、照明装置１２００を上方斜め方向から見込んだ斜視図である。
図１４は、照明装置１２００を上方から見込んだ平面図である。
図１５は、照明装置１２００を側方から見込んだ側面図である。
図１６は、図１４のＣ−Ｃ断面図である。 Embodiment 2. FIG.
13 to 16 show a lighting apparatus 1200 according to the second embodiment. The illumination device 1200 is different from the illumination device 1100 in the configuration of the second light emitting unit 200.
FIG. 13 is a perspective view of the illuminating device 1200 viewed from an obliquely upward direction.
FIG. 14 is a plan view of the lighting device 1200 as viewed from above.
FIG. 15 is a side view of the lighting device 1200 viewed from the side.
16 is a cross-sectional view taken along the line CC of FIG.

照明装置１２００は、図１３に示すように、支軸３００に支持されたリング形状（円環形状）のリング形状筐体２１０−１と、リング形状筐体２１０−１（導光体支持部）と同様のリング形状の導光体２３０−１とを備えている。また、図１６に示すように、光源となるＬＥＤパッケージ１０がリング形状筐体２１０−１と導光体２３０−１との間に挟まれて配置される。照明装置１２００は、第二発光部２００の光源にＬＥＤパッケージ１０を使用すると共に、そのＬＥＤパッケージ１０が導光体２３０の上部に、複数配置される。例えば、第二発光部２００の支軸３００の先端の位置（図１３の破線で示す範囲１６〜１８）に、ＬＥＤパッケージ１０が複数個ずつ配置される。図１４に示すＬＥＤパッケージ１０を実装したＬＥＤ実装基板２２１−１は、リング形状筐体２１０−１と同様のリング形状である。 As shown in FIG. 13, the illumination device 1200 includes a ring-shaped (annular) ring-shaped casing 210-1 supported by the support shaft 300, and a ring-shaped casing 210-1 (light guide support portion). And a ring-shaped light guide 230-1 similar to the above. Further, as shown in FIG. 16, the LED package 10 serving as the light source is disposed between the ring-shaped casing 210-1 and the light guide 230-1. The lighting device 1200 uses the LED package 10 as a light source of the second light emitting unit 200, and a plurality of the LED packages 10 are disposed on the light guide 230. For example, a plurality of LED packages 10 are arranged at the position of the tip end of the support shaft 300 of the second light emitting unit 200 (ranges 16 to 18 indicated by broken lines in FIG. 13). The LED mounting substrate 221-1 on which the LED package 10 shown in FIG. 14 is mounted has a ring shape similar to that of the ring-shaped housing 210-1.

このように第二発光部２００は、導光体２３０−１と、リング形状筐体２１０−１と、第二光源部２２０を備えている。導光体２３０−１は、円筒筐体１１０の側面の周囲を一周する連続形状であり、第二光源部２２０の光を入射して発光することにより、第一照射部１３０の配光特性と異なる配光特性の光を空間に照射する。リング形状筐体２１０−１は、複数の支軸３００によって支持されると共に、導光体２３０−１の連続形状に対応した形状をなし、導光体２３０−１を下面で支持する。第二光源部２２０は、図１６に示すように、リング形状筐体２１０−１の下面と導光体２３０−１とによって上下方向から挟まれ、かつ、リング形状筐体２１０−１の周方向に沿って複数配置され、発光面が導光体２３０−１に対向する複数のＬＥＤパッケージ１０を有する。 As described above, the second light emitting unit 200 includes the light guide 230-1, the ring-shaped casing 210-1, and the second light source unit 220. The light guide 230-1 has a continuous shape that goes around the side surface of the cylindrical housing 110, and emits light from the second light source unit 220. Irradiate light with different light distribution characteristics. The ring-shaped housing 210-1 is supported by the plurality of support shafts 300, has a shape corresponding to the continuous shape of the light guide 230-1, and supports the light guide 230-1 on the lower surface. As shown in FIG. 16, the second light source unit 220 is sandwiched between the lower surface of the ring-shaped housing 210-1 and the light guide 230-1 from the top and bottom, and the circumferential direction of the ring-shaped housing 210-1. A plurality of LED packages 10 are disposed along the light emitting surface and the light emitting surface faces the light guide 230-1.

ＬＥＤ実装基板２２１−１は必ずしも導光体２３０−１の横断面と同じ円環形状でなくてもよく、短い長方基板にＬＥＤを数個実装し、それを複数連結されるように構成したものでもよい。この構成において、導光体２３０−１は、前述のとおり、少なくとも片側（内周側）の広い側面に光拡散パタン２３２を有する、例えば円筒状の透光性導光体である。 The LED mounting substrate 221-1 does not necessarily have the same annular shape as the cross section of the light guide 230-1, and a plurality of LEDs are mounted on a short rectangular substrate and a plurality of LEDs are connected. It may be a thing. In this configuration, as described above, the light guide 230-1 is, for example, a cylindrical light-transmitting light guide having the light diffusion pattern 232 on at least one side (inner peripheral side).

本構成においては、ＬＥＤパッケージ１０から発する光は、円筒の導光体２３０−１を下方に向けて進む。したがって、円筒の導光体２３０−１の下部に反射部材を設けなければ、導光体２３０の下部も発光部として、やや強めの光を発する発光部となる。一方で、下方に放射される光を抑え、導光体２３０−１の側面からの照射光を強めたい場合には、導光体２３０−１の下側端面２３０ｃに反射部材を配置し、その反射光を導光体内で再利用する構成とする。 In this configuration, the light emitted from the LED package 10 travels down the cylindrical light guide 230-1. Therefore, if a reflecting member is not provided below the cylindrical light guide 230-1, the lower part of the light guide 230 also serves as a light emitting unit that emits slightly stronger light. On the other hand, when it is desired to suppress the light radiated downward and increase the irradiation light from the side surface of the light guide 230-1, a reflecting member is disposed on the lower end surface 230c of the light guide 230-1, The reflected light is reused in the light guide.

以上のように実施の形態２の照明装置１２００でも、実施の形態１の照明装置１１００と同様に、多様な照明演出効果を有する照明装置を提供できる。また、第二光源部２２０のＬＥＤパッケージ１０の配置が、ＬＥＤ実装基板２２１−１を上側に配置する構成となる。このため、ＬＥＤ実装基板２２１−１とリング形状筐体２１０−１とを放熱性材料で構成し、ＬＥＤ実装基板２２１−１の熱をリング形状筐体２１０−１に放熱させる構造とする。この構造によりＬＥＤパッケージ１０の温度上昇を避けることができるので、発光効率のよい照明装置を提供できる。 As described above, the lighting device 1200 according to the second embodiment can provide lighting devices having various lighting effects as in the lighting device 1100 according to the first embodiment. Moreover, arrangement | positioning of the LED package 10 of the 2nd light source part 220 becomes a structure which arrange | positions the LED mounting board 221-1 on the upper side. For this reason, the LED mounting board 221-1 and the ring-shaped casing 210-1 are made of a heat dissipating material, and the heat of the LED mounting board 221-1 is radiated to the ring-shaped casing 210-1. With this structure, the temperature rise of the LED package 10 can be avoided, so that a lighting device with good luminous efficiency can be provided.

またリング形状筐体２１０−１の上面のところどころに光を通す穴を設ける構成とする。この構成であれば、穴からの漏れ光を第二発光部２００上面から天井に向けて照射することができるので、趣の異なる演出効果を有する照明装置を提供できる。このように、リング形状筐体２１０−１は、導光体２３０−１から照射された光を通過させる複数の穴が形成されている。 Further, a hole through which light passes is provided at various locations on the upper surface of the ring-shaped casing 210-1. If it is this structure, since the leakage light from a hole can be irradiated toward a ceiling from the 2nd light emission part 200 upper surface, the illuminating device which has the effect effect from which an atmosphere differs can be provided. As described above, the ring-shaped housing 210-1 has a plurality of holes through which the light emitted from the light guide 230-1 passes.

実施の形態３．
図１７、図１８を参照して、実施の形態３の照明装置１３００を説明する。照明装置１３００は照明装置１１００と第二発光部２００の構成が異なる。照明装置１３００は、第二発光部に、第一発光部を小型にした形状の発光部を用い、各発光部を支軸先端筐体２１０−２で連結する構成である。外観は、図１に近似するが、図１７、図１８に示すように、支軸３００のセンタに円筒筐体１１０を小型にしたような発光部を有する。 Embodiment 3 FIG.
With reference to FIG. 17, FIG. 18, the illuminating device 1300 of Embodiment 3 is demonstrated. The illumination device 1300 is different from the illumination device 1100 in the configuration of the second light emitting unit 200. The illuminating device 1300 has a configuration in which a light-emitting part having a reduced size of the first light-emitting part is used as the second light-emitting part, and each light-emitting part is connected by a spindle end case 210-2. The appearance is similar to that of FIG. 1, but as shown in FIGS. 17 and 18, the center of the support shaft 300 has a light emitting portion that is a compact cylindrical casing 110.

図１７は、照明装置１３００の側面図である。
図１８は、照明装置１３００の上面図（天井側から見た図）である。
照明装置１３００は、第一発光部１００に図８の構成を用い、第二光源部２２０にはスポット的あるいはやや拡散気味に発光するＬＥＤ光源として用い、複数の支軸３００の先端部に設ける。すなわち、第二光源部２２０は第一発光部１００の小型版である。図１７、図１８のように、照明装置１３００は、図８の構成の第一発光部１００と、３本の支軸３００と、第二発光部２００とからなる。 FIG. 17 is a side view of the lighting device 1300.
FIG. 18 is a top view of the lighting device 1300 (viewed from the ceiling side).
The illuminating device 1300 uses the configuration of FIG. 8 for the first light emitting unit 100, and is used as the LED light source that emits light in a spot-like or slightly diffused manner for the second light source unit 220, and is provided at the distal ends of the plurality of support shafts 300. That is, the second light source unit 220 is a small version of the first light emitting unit 100. As illustrated in FIGS. 17 and 18, the lighting device 1300 includes the first light emitting unit 100 having the configuration illustrated in FIG. 8, the three support shafts 300, and the second light emitting unit 200.

第二発光部２００は、円筒形状の支軸先端筐体２１０−２と、第二光源部２２０と、第二光源部２２０（反射板及び光学系部材も含む）が収容された支軸先端筐体２１０−２どうしを連結する第二光源部間支軸３００−１とから構成される。第二光源部間支軸３００−１は発光機能を持たない。第二光源の収納された支軸先端筐体２１０−２は、円筒筐体１１０と同様に、先端部領域内（底面）が装置下向きに光を照射する。 The second light emitting unit 200 includes a support shaft tip housing 210-2 in which a cylindrical support shaft tip housing 210-2, a second light source unit 220, and a second light source unit 220 (including a reflector and an optical system member) are accommodated. It is comprised from the support shaft 300-1 between the 2nd light source parts which connects the body 210-2. The second light source inter-support shaft 300-1 does not have a light emitting function. In the same manner as the cylindrical housing 110, the spindle front end housing 210-2 in which the second light source is housed irradiates light in the front end region (bottom surface) downward.

なお、支軸先端筐体２１０−２については、側面全体を発光させる構成でもよい。例えば、支軸先端筐体２１０−２の上部にＬＥＤを配置し、外周に薄板の導光体を二重円筒のように配置するようにしてもよいし、後述するフレキシブルな有機ＥＬを支軸先端筐体２１０−２の外周に配置してもよい。 In addition, about the spindle tip housing | casing 210-2, the structure which light-emits the whole side surface may be sufficient. For example, an LED may be disposed on the upper end of the support shaft tip housing 210-2, and a thin light guide may be disposed on the outer periphery like a double cylinder, or a flexible organic EL described later may be used as a support shaft. You may arrange | position to the outer periphery of the front-end | tip housing | casing 210-2.

照明装置１３００の構成であれば、第一発光部１００と第二発光部２００との配光特性の違いを利用した照明演出効果の高い照明装置を提供できる。なお、照明装置１３００の構成において、第二発光部２００内のＬＥＤ光源部はその固定角度調整を可能にするなどして、配光調整可能としてもよい。その場合にも所定領域の照度調整が可能になるため、固定角度調整のない場合とは異なる演出効果を有する。 If it is the structure of the illuminating device 1300, the illuminating device with a high illumination effect using the difference in the light distribution characteristic of the 1st light emission part 100 and the 2nd light emission part 200 can be provided. In the configuration of the lighting device 1300, the LED light source unit in the second light emitting unit 200 may be capable of adjusting the light distribution, for example, by enabling the fixed angle adjustment thereof. Even in such a case, the illuminance adjustment of the predetermined area becomes possible, and thus there is an effect different from the case where there is no fixed angle adjustment.

実施の形態４．
以上の実施の形態１〜３の照明装置では、第一発光部１００及び第二発光部２００の光源を両者ともＬＥＤで構成した例を示したが、少なくとも何れかの光源を有機ＥＬ（有機ＬＥＤ）としてもよい。有機ＬＥＤはＬＥＤと同様に直流駆動が可能であり、さらに薄型面光源の利点を活用できる。例えば、第一光源部１２０に有機ＥＬを用いることでかなり薄型発光部とすることができる。とくに円筒筐体１１０を、円筒形状に限らず（円筒形状の場合も含めて）コンパクトな形状にできるので、意匠性に優れた装置を提供できる。 Embodiment 4 FIG.
In the illumination devices of Embodiments 1 to 3 described above, the light sources of the first light emitting unit 100 and the second light emitting unit 200 are both configured by LEDs. However, at least one of the light sources is an organic EL (organic LED). ). The organic LED can be driven by a direct current like the LED, and can further utilize the advantages of a thin surface light source. For example, by using an organic EL for the first light source unit 120, a considerably thin light emitting unit can be obtained. In particular, since the cylindrical housing 110 is not limited to a cylindrical shape (including a cylindrical shape), it can be formed into a compact shape, so that an apparatus with excellent design can be provided.

さらに、実施の形態１〜３の照明装置において以下のように有機ＥＬを用いることができる。
（１）第二発光部２００の光源にフレキシブルな有機ＥＬを用い、円筒状に固定して使用してもよい。
（２）また、片側発光の有機ＥＬを外側方向にのみ外側発光タイプとして使用し、または、内側にも用いることで背中合わせで用い、両面発光タイプとして適用してもよい。
（３）あるいは、透光性の両面発光タイプの有機ＥＬを用いて両面発光タイプとして適用することもできる。その場合に、装置には上述した円筒導光体を用いたような装置と類似する外観や照明効果を持たせることができるとともに、面状の発光体であるため比較的容易に作ることが可能である。
（４）さらに第二発光部２００に適用の場合には導光体を利用するよりも、かなり薄い発光面を得られるため、高い意匠性、演出効果を有する照明装置を提供できる。 Furthermore, organic EL can be used as follows in the illuminating devices of Embodiments 1-3.
(1) A flexible organic EL may be used as the light source of the second light emitting unit 200, and the second light emitting unit 200 may be fixed in a cylindrical shape.
(2) Further, the organic EL that emits light on one side may be used as an outer light emitting type only in the outer direction, or may be used back-to-back by being used also on the inner side, and may be applied as a double-sided light emitting type.
(3) Alternatively, it can be applied as a double-sided light emission type using a translucent double-sided light emission type organic EL. In that case, the device can have an appearance and illumination effect similar to those of the device using the cylindrical light guide described above, and can be made relatively easily because it is a planar light emitter. It is.
(4) Furthermore, when applied to the second light emitting unit 200, a considerably thin light emitting surface can be obtained rather than using a light guide, so that it is possible to provide an illuminating device having high design properties and production effects.

１０ＬＥＤパッケージ、１１ＬＥＤ発光面、１４範囲、１５中心、１６，１７，１８範囲、１１００，１２００，１３００照明装置、１００第一発光部、１１０円筒筐体、１１０ａ発光面、１２０第一光源部、１２１第一ＬＥＤ実装基板、１２２第一光源用ケース、１３０第一照射部、１３１反射板、１３２光学系部材、２００第二発光部、２１０支軸先端筐体、２１０ａ裏側、２１０−１リング形状筐体、２１０−２支軸先端筐体、２２０第二光源部、２２１ＬＥＤ実装基板、２２２放熱性支持体、２２３リード線、２３０導光体、２３０ａ入光端面、２３０ｂ上側端面、２３０ｃ下側端面、２３０−１導光体、２３１導光部材、２３２光拡散パタン、２４０拡散性透光部材、２５０光反射シート、３００支軸、３００ａ，３００ｂ端部、３００−１第二光源部間支軸、４００電源供給線、５００電源部。 DESCRIPTION OF SYMBOLS 10 LED package, 11 LED light emission surface, 14 range, 15 center, 16, 17, 18 range, 1100, 1200, 1300 Illumination device, 100 1st light emission part, 110 cylindrical housing | casing, 110a light emission surface, 120 1st light source part , 121 1st LED mounting substrate, 122 1st light source case, 130 1st irradiation part, 131 reflector, 132 optical system member, 200 2nd light emission part, 210 spindle tip housing | casing, 210a back side, 210-1 ring Shaped case, 210-2 Spindle tip case, 220 Second light source part, 221 LED mounting board, 222 Heat dissipation support, 223 Lead wire, 230 Light guide, 230a Light incident end face, 230b Upper end face, 230c Bottom Side end face, 230-1 Light guide, 231 Light guide member, 232 Light diffusion pattern, 240 Diffusible light transmissive member, 250 Light reflection Over DOO, 300 shaft, 300a, 300b ends, 300-1 second light source unit between the support shaft, 400 power supply line, 500 power supply portion.

Claims

In a lighting device that irradiates light in space,
A first housing, a first light source unit disposed in the first housing and emitting light, and a light disposed in the first housing and converting the light emitted from the first light source unit into a predetermined light distribution characteristic. A first light emitting unit that irradiates the space with light having the light distribution characteristic from the bottom surface of the first housing;
One end is attached to the side surface of the first housing, and the other end is a plurality of shafts extending into the space. Each shaft of the plurality of shafts has the one end portion of the first housing. A plurality of shafts attached along the circumferential direction of the side surface of the housing;
The space is irradiated with light having a light distribution characteristic different from the light distribution characteristic of the first irradiation unit while being supported by the plurality of axes by connecting to each other end of the plurality of axes, and A second light-emitting part having a continuous shape that goes around the side surface of the first casing, and a surface that emits light from the second light source part that emits light and light from the second light source part. A second light emitting unit having a transparent light guide that irradiates the space with light having a light distribution characteristic different from the light distribution characteristic of the first irradiation unit,
The lighting device includes:
When viewed from the side, the light guide body hides a region corresponding to the bottom surface of the first housing, and the second light emitting unit is
An illuminating device characterized by having no reflecting member that reflects light emitted from the light guide around the light guide.

The light guide body of the second light emitting unit is:
The lighting device according to claim 1, wherein the lighting device has a strip shape.

The second light emitting unit is
The lighting device according to claim 1, wherein a position with respect to the first housing can be adjusted.

The second light source unit is
The lighting device according to claim 1, wherein the lighting device is disposed at a position of the other end of at least one of the plurality of shafts.

The lighting device includes:
3 or more of the shafts,
The second light emitting unit is
The second light source unit arrangement axis is the second light source unit arrangement axis, and the second light source unit arrangement axis is the second light source unit arrangement axis. The lighting device according to claim 4, wherein the other end portion of at least one of the shafts adjacent in the circumferential direction is connected.

The second light emitting unit is
The light guide body connects the other end of the second light source unit arrangement axis and the other end of the axis adjacent to the second light source unit arrangement axis in the circumferential direction forward. The other end portion of the second light source portion arrangement axis is connected to the other end portion of the axis adjacent to the second light source portion arrangement axis rearward in the circumferential direction. Item 6. The lighting device according to Item 5.

The second light emitting unit further includes
A heat dissipating member;
As the second light source unit, comprising two LED mounting substrates in which a plurality of LEDs are mounted on a mounting surface which is one surface,
The two LED mounting boards are:
The back surface which is the back surface with respect to the mounting surface sandwiches the heat dissipating member, and is in close contact with the heat dissipating member,
One LED mounting board
The light emitting surface of each LED couples the other end of the second light source unit arrangement axis and the other end of the axis adjacent to the second light source unit arrangement axis in the circumferential direction forward. Arranged to face the end face of the end of the light guide,
The other LED mounting board is
The light emitting surface of each LED connects the other end of the second light source unit arrangement axis and the other end of the axis adjacent to the second light source unit arrangement axis rearward in the circumferential direction. The lighting device according to claim 6, wherein the lighting device is disposed to face an end face of an end portion of the light guide.

The first light source unit and the second light source unit are
The lighting device according to claim 1, wherein the light colors are different.

The first light source unit and the second light source unit are
The lighting device according to claim 1, wherein dimming is individually possible.

At least one of the first light source unit and the second light source unit is
The lighting device according to claim 1, wherein an organic EL is used.

The second light emitting unit is
A continuous light guide that goes around the side of the first housing;
A light guide support portion that is supported by the plurality of shafts and has a shape corresponding to a continuous shape of the light guide, and supports the light guide;
As the second light source unit, a plurality of light source surfaces are sandwiched between the lower surface of the light guide support part and the light guide member from above and below, and are arranged along the circumferential direction of the light guide support part. A plurality of LEDs facing the light guide,
The light guide is
The light of the light distribution characteristic different from the said light distribution characteristic of said 1st irradiation part is irradiated to the said space by injecting and emitting the light of said 2nd light source part, The Claim 1-10 characterized by the above-mentioned. The lighting apparatus in any one.

The light guide support part is:
The lighting device according to claim 11, wherein a plurality of holes through which light irradiated from the light guide is passed are formed.