JP7283090B2 - Lighting device and lighting system - Google Patents

Lighting device and lighting system Download PDF

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JP7283090B2
JP7283090B2 JP2019016172A JP2019016172A JP7283090B2 JP 7283090 B2 JP7283090 B2 JP 7283090B2 JP 2019016172 A JP2019016172 A JP 2019016172A JP 2019016172 A JP2019016172 A JP 2019016172A JP 7283090 B2 JP7283090 B2 JP 7283090B2
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light source
ceiling
light
optical axis
illumination
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JP2020123548A (en
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遼 伏江
大介 松原
滋之 永田
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Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
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Mitsubishi Electric Corp
Mitsubishi Electric Lighting Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

この発明は、照明装置及び照明システムに関するものである。 The present invention relates to lighting devices and lighting systems.

照明装置においては、天井面に設置される平面発光モジュールであって、平面基板上に二次元配列される複数の発光素子と、複数の発光素子の全体を覆うように配置され、天井面から下方に延出する側面を有する透明又は半透明のカバーと、発光素子から出射する光をカバーの側面に向けて配光する側面照射レンズと、を備えたものが知られている（例えば、特許文献１参照）。 In the lighting device, a planar light-emitting module installed on the ceiling surface includes a plurality of light-emitting elements arranged two-dimensionally on a planar substrate, and a plurality of light-emitting elements arranged to cover the entirety of the plurality of light-emitting elements. and a side illumination lens for distributing light emitted from the light emitting element toward the side surface of the cover. 1).

特開２０１３－００４１９１号公報JP 2013-004191 A

しかしながら、特許文献１に示されるような照明装置においては、発光素子（光源）から照射された光を側面照射レンズに含まれるレンズ、プリズム等により反射、屈折等させて、天井面に照射している。したがって、レンズ、プリズム等による反射、屈折等の過程で光源から照射された光の損失が生じ、天井面に照射される光量が減少する。このため、空間全体について人が感じる明るさを確保するためには、光源の出力を上げる必要があり、消費電力量の低減効果が限定されてしまう。 However, in the lighting device as shown in Patent Document 1, the light emitted from the light emitting element (light source) is reflected or refracted by a lens, prism, or the like included in the side illumination lens, and is emitted to the ceiling surface. there is Therefore, the light emitted from the light source is lost in the process of reflection, refraction, etc. by the lens, prism, etc., and the amount of light emitted to the ceiling surface is reduced. Therefore, in order to ensure the brightness perceived by people in the entire space, it is necessary to increase the output of the light source, which limits the effect of reducing power consumption.

この発明は、このような課題を解決するためになされたものである。その目的は、天井面を照射するための光の損失を抑制し、効率的に天井面の輝度を上げて空間全体としては明るく感じさせることができ、人が感じる明るさを変えることなく消費電力量の低減を図ることが可能である照明装置及び照明システムを提供することにある。 The present invention has been made to solve such problems. The purpose is to suppress the loss of light for illuminating the ceiling surface, efficiently increase the brightness of the ceiling surface, make the space feel brighter as a whole, and consume power without changing the brightness perceived by people. An object of the present invention is to provide a lighting device and a lighting system capable of reducing the amount of light.

この発明に係る照明装置は、天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーと、を備え、前記第１の光源の光軸は、前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は、９０°以上であり、前記カバーは、前記第１の光源から照射された光が透過する第１の面と、前記第２の光源から照射された光が透過する第２の面と、を有し、前記第１の面は、前記第１の光源の光軸に対して垂直に配置され、前記第２の面は、前記第２の光源の光軸に対して垂直に配置される。
あるいは、この発明に係る照明装置は、天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーと、を備え、前記第１の光源の光軸は、前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は、９０°以上であり、前記第１の光源及び前記第２の光源と前記カバーとの間に設けられ、前記第１の光源及び前記第２の光源から照射された光を拡散させる光拡散手段をさらに備える。 A lighting device according to the present invention includes a base portion attached to a ceiling, a first substrate provided on the base portion on which a first light source is mounted, and a second light source provided on the base portion. a mounted second substrate and a cover integrally covering the first light source and the second light source, wherein the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling and the angle between the optical axis of the first light source and the optical axis of the second light source is 90° or more, and the cover transmits light emitted from the first light source. It has a first surface and a second surface through which the light emitted from the second light source is transmitted, and the first surface is arranged perpendicular to the optical axis of the first light source. and the second plane is arranged perpendicular to the optical axis of the second light source .
Alternatively, the lighting device according to the present invention includes a base portion attached to the ceiling, a first substrate provided on the base portion on which a first light source is mounted, and a second substrate provided on the base portion. a second substrate on which a light source is mounted; and a cover that integrally covers the first light source and the second light source, wherein the optical axis of the first light source is aligned with the ceiling surface of the ceiling. are perpendicular to each other, the angle formed by the optical axis of the first light source and the optical axis of the second light source is 90° or more, and the distance between the first light source, the second light source, and the cover It further comprises a light diffusing means provided between the first light source and the second light source for diffusing the light emitted from the first light source and the second light source.

この発明に係る照明システムは、天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーとを有し、前記第１の光源の光軸は前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は９０°以上である照明装置を複数備え、複数の前記照明装置は、予め設定された配列方向に沿って等しい間隔で並べて配置され、それぞれの前記照明装置の前記第２の光源は、前記配列方向に沿った両方向に光を照射し、それぞれの前記照明装置の前記第２の光源の前記配列方向に沿った光照射距離は、前記間隔の半分以上である。
あるいは、この発明に係る照明システムは、天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーとを有し、前記第１の光源の光軸は前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は９０°以上である照明装置を複数備え、複数の前記照明装置は、予め設定された配列方向に沿って等しい間隔で並べて配置され、それぞれの前記照明装置の前記第２の光源は、前記配列方向に沿った一方向に光を照射し、それぞれの前記照明装置の前記第２の光源の前記配列方向に沿った光照射距離は、前記間隔以上である。
A lighting system according to the present invention includes a base portion attached to a ceiling, a first substrate provided on the base portion and having a first light source mounted thereon, a second light source provided on the base portion, and a second light source. a second substrate mounted thereon; and a cover integrally covering the first light source and the second light source, wherein the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling. a plurality of lighting devices having an angle of 90° or more between the optical axis of the first light source and the optical axis of the second light source, wherein the plurality of lighting devices are arranged along a preset arrangement direction are arranged side by side at equal intervals, the second light sources of the respective lighting devices emit light in both directions along the arrangement direction, and the second light sources of the respective lighting devices emit light in both directions along the arrangement direction. The light irradiation distance along is more than half the distance.
Alternatively, the lighting system according to the present invention includes a base attached to the ceiling, a first substrate provided on the base on which a first light source is mounted, and a second substrate provided on the base. a second board on which a light source is mounted; and a cover that integrally covers the first light source and the second light source, and the optical axis of the first light source is directed to the ceiling surface of the ceiling. A plurality of lighting devices are provided which are perpendicular and the angle formed by the optical axis of the first light source and the optical axis of the second light source is 90° or more, and the plurality of lighting devices are arranged in a preset arrangement direction. and the second light sources of the respective lighting devices emit light in one direction along the arrangement direction, and the second light sources of the respective lighting devices The light irradiation distance along the array direction is equal to or greater than the interval.

この発明に係る照明装置及び照明システムによれば、天井面を照射するための光の損失を抑制し、効率的に天井面の輝度を上げて空間全体としては明るく感じさせることができ、人が感じる明るさを変えることなく消費電力量の低減を図ることが可能であるという効果を奏する。 According to the lighting device and the lighting system according to the present invention, the loss of light for illuminating the ceiling surface can be suppressed, the luminance of the ceiling surface can be efficiently increased, and the entire space can be made to feel brighter. The effect is that it is possible to reduce power consumption without changing perceived brightness.

この発明の実施の形態１に係る照明システムが備える照明装置の斜視図である。1 is a perspective view of a lighting device included in a lighting system according to Embodiment 1 of the present invention; FIG. この発明の実施の形態１に係る照明システムが備える照明装置を下から見た斜視図である。It is the perspective view which looked at the illuminating device with which the illuminating system which concerns on Embodiment 1 of this invention is provided from the bottom. この発明の実施の形態１に係る照明システムが備える照明装置を上から見た断面斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is the cross-sectional perspective view which looked at the illuminating device with which the illuminating system which concerns on Embodiment 1 of this invention is provided from the top. この発明の実施の形態１に係る照明システムが備える照明装置の断面図である。1 is a cross-sectional view of an illumination device included in an illumination system according to Embodiment 1 of the present invention; FIG. この発明の実施の形態１に係る照明システムの全体図である。1 is an overall view of a lighting system according to Embodiment 1 of the present invention; FIG. この発明の実施の形態１に係る照明システムの変形例の全体図である。FIG. 4 is an overall view of a modification of the lighting system according to Embodiment 1 of the present invention; この発明の実施の形態１に係る照明システムが備える照明装置の制御系統の構成を示すブロック図である。1 is a block diagram showing the configuration of a control system of a lighting device included in the lighting system according to Embodiment 1 of the present invention; FIG. この発明の実施の形態１に係る照明システムが備える照明装置の変形例を示す断面図である。FIG. 4 is a cross-sectional view showing a modification of the lighting device included in the lighting system according to Embodiment 1 of the present invention; この発明の実施の形態１に係る照明システムが備える照明装置の変形例を示す断面斜視図である。It is a cross-sectional perspective view which shows the modification of the illuminating device with which the illuminating system which concerns on Embodiment 1 of this invention is provided. この発明の実施の形態２に係る照明システムの全体図である。1 is an overall view of a lighting system according to Embodiment 2 of the present invention; FIG. この発明の実施の形態２に係る照明システムの変形例の全体図である。FIG. 5 is an overall view of a modification of the lighting system according to Embodiment 2 of the present invention;

この発明を実施するための形態について添付の図面を参照しながら説明する。各図において、同一又は相当する部分には同一の符号を付して、重複する説明は適宜に簡略化又は省略する。なお、本発明は以下の実施の形態に限定されることなく、本発明の趣旨を逸脱しない範囲で種々変形することが可能である。 Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals, and overlapping descriptions are appropriately simplified or omitted. The present invention is not limited to the following embodiments, and can be modified in various ways without departing from the scope of the present invention.

実施の形態１．
図１から図９は、この発明の実施の形態１に係るものである。図１は照明システムが備える照明装置の斜視図である。図２は照明システムが備える照明装置を下から見た斜視図である。図３は照明システムが備える照明装置を上から見た断面斜視図である。図４は照明システムが備える照明装置の断面図である。図５は照明システムの全体図である。図６は照明システムの変形例の全体図である。図７は照明システムが備える照明装置の制御系統の構成を示すブロック図である。図８は照明システムが備える照明装置の変形例を示す断面図である。そして、図９は照明システムが備える照明装置の変形例を示す断面斜視図である。 Embodiment 1.
1 to 9 relate to Embodiment 1 of the present invention. FIG. 1 is a perspective view of a lighting device included in the lighting system. FIG. 2 is a bottom perspective view of an illumination device included in the illumination system. FIG. 3 is a cross-sectional perspective view from above of an illumination device provided in the illumination system. FIG. 4 is a cross-sectional view of an illumination device included in the illumination system. FIG. 5 is an overall view of the lighting system. FIG. 6 is a general view of a variant of the lighting system. FIG. 7 is a block diagram showing the configuration of the control system of the lighting device provided in the lighting system. FIG. 8 is a cross-sectional view showing a modification of the lighting device included in the lighting system. FIG. 9 is a cross-sectional perspective view showing a modification of the lighting device provided in the lighting system.

この実施の形態に係る照明システムは、複数の照明装置１を備えている。複数の照明装置１のそれぞれは、図１及び図５に示すように、部屋の天井２に設置される。図１から図４に示すように、照明装置１は、ベース部１０とカバー２０とを備えている。ベース部１０は、天井２に取り付けられている。 A lighting system according to this embodiment includes a plurality of lighting devices 1 . Each of the plurality of lighting devices 1 is installed on the ceiling 2 of the room, as shown in FIGS. As shown in FIGS. 1 to 4, lighting device 1 includes base portion 10 and cover 20 . The base part 10 is attached to the ceiling 2 .

カバー２０は、ベース部１０に取り付けられる。カバー２０は、ベース部１０の下側に配置される。カバー２０は、上面が開放された中空の細長い長方体状を呈する。カバー２０がベース部１０に取り付けられた状態では、カバー２０の開放された上面部をベース部１０が塞ぐように位置する。 The cover 20 is attached to the base portion 10 . The cover 20 is arranged below the base portion 10 . The cover 20 has a hollow elongated rectangular parallelepiped shape with an open upper surface. When the cover 20 is attached to the base portion 10 , the base portion 10 is positioned so as to cover the open upper surface portion of the cover 20 .

特に図４に示すように、ベース部１０は、床面照射用基板取付部１１及び天井面照射用基板取付部１２を備えている。ベース部１０は、例えば、金属製の板を折り曲げ加工することで形成されている。ここで説明する構成例では、ベース部１０は、長手方向に直交する断面において中央部が下に凸なコ字状になるように折り曲げられている。このコ字状の部分のうち、天井２の天井面に平行な部分が床面照射用基板取付部１１である。また、このコ字状の部分のうち、天井２の天井面に垂直な部分が天井面照射用基板取付部１２である。したがって、この構成例では、ベース部１０には、１つの床面照射用基板取付部１１と、２つの天井面照射用基板取付部１２が設けられている。 In particular, as shown in FIG. 4 , the base portion 10 includes a floor illumination substrate attachment portion 11 and a ceiling illumination substrate attachment portion 12 . The base portion 10 is formed, for example, by bending a metal plate. In the configuration example described here, the base portion 10 is bent in a U-shape with a downwardly convex central portion in a cross section perpendicular to the longitudinal direction. Of the U-shaped portion, the portion parallel to the ceiling surface of the ceiling 2 is the floor irradiation board mounting portion 11 . Further, of the U-shaped portion, the portion perpendicular to the ceiling surface of the ceiling 2 is the ceiling surface irradiation board mounting portion 12 . Therefore, in this configuration example, the base portion 10 is provided with one floor illumination substrate attachment portion 11 and two ceiling surface illumination substrate attachment portions 12 .

床面照射用基板取付部１１には、床面照射用基板３１が取り付けられる。床面照射用基板３１には、床面照射用光源４１が実装されている。天井面照射用基板取付部１２には、天井面照射用基板３２が取り付けられる。天井面照射用基板３２には、天井面照射用光源４２が実装されている。床面照射用光源４１及び天井面照射用光源４２は、複数のＬＥＤを配列して構成されている。 A floor illumination substrate 31 is attached to the floor illumination substrate attachment portion 11 . A floor illumination light source 41 is mounted on the floor illumination substrate 31 . A ceiling surface irradiation board 32 is attached to the ceiling surface irradiation board mounting portion 12 . A ceiling surface illumination light source 42 is mounted on the ceiling surface illumination substrate 32 . The floor surface illumination light source 41 and the ceiling surface illumination light source 42 are configured by arranging a plurality of LEDs.

床面照射用光源４１は、第１の光源である。また、天井面照射用光源４２は、第２の光源である。そして、床面照射用基板３１は、第１の光源である床面照射用光源４１が実装された第１の基板である。また、天井面照射用基板３２は、第２の光源である天井面照射用光源４２が実装された第２の基板である。ここで示す構成例では、天井面照射用基板取付部１２が２つあるため、天井面照射用基板３２及び天井面照射用光源４２も２つある。 The floor illumination light source 41 is a first light source. Also, the ceiling surface illumination light source 42 is a second light source. The floor illumination substrate 31 is a first substrate on which a floor illumination light source 41, which is the first light source, is mounted. The ceiling surface illumination substrate 32 is a second substrate on which a ceiling surface illumination light source 42, which is a second light source, is mounted. In the configuration example shown here, since there are two ceiling surface irradiation substrate mounting portions 12 , there are also two ceiling surface irradiation substrates 32 and two ceiling surface irradiation light sources 42 .

図４に示すように、床面照射用光源４１の光軸Ａは、天井２の天井面に対して垂直である。そして、床面照射用光源４１の光軸Ａと天井面照射用光源４２の光軸Ｂとのなす角度θは、９０°以上である。なお、ここで説明する構成例は、光軸Ａと光軸Ｂとのなす角度θを９０°にしたものである。 As shown in FIG. 4 , the optical axis A of the floor illumination light source 41 is perpendicular to the ceiling surface of the ceiling 2 . The angle θ between the optical axis A of the light source 41 for illuminating the floor surface and the optical axis B of the light source 42 for illuminating the ceiling surface is 90° or more. In the configuration example described here, the angle θ between the optical axis A and the optical axis B is set to 90°.

床面照射用基板３１及び天井面照射用基板３２は、１つのカバー２０の内側に配置されている。したがって、カバー２０は、床面照射用光源４１と天井面照射用光源４２とを一体で覆っている。 The floor illumination substrate 31 and the ceiling illumination substrate 32 are arranged inside one cover 20 . Therefore, the cover 20 integrally covers the floor illumination light source 41 and the ceiling illumination light source 42 .

カバー２０は、床面照射光透過面２１と天井面照射光透過面２２と有している。床面照射用光源４１から照射された光は、カバー２０の主に床面照射光透過面２１を透過して部屋の床に向けて照射される。カバー２０の床面照射光透過面２１は、前述した第１の光源から照射された光が透過する第１の面である。天井面照射用光源４２から照射された光は、カバー２０の主に天井面照射光透過面２２を透過して部屋の天井２に向けて照射される。カバー２０の天井面照射光透過面２２は、前述した第２の光源から照射された光が透過する第２の面である。床面照射光透過面２１の特に内面は、床面照射用光源４１の光軸Ａに対して垂直に配置されている。また、天井面照射光透過面２２の特に内面は、天井面照射用光源４２の光軸に対して垂直に配置されている。 The cover 20 has a floor illumination light transmission surface 21 and a ceiling illumination light transmission surface 22 . The light emitted from the floor illumination light source 41 is transmitted mainly through the floor illumination light transmission surface 21 of the cover 20 and is illuminated toward the floor of the room. The floor illumination light transmission surface 21 of the cover 20 is a first surface through which the light emitted from the first light source described above is transmitted. The light emitted from the ceiling surface illumination light source 42 is mainly transmitted through the ceiling surface illumination light transmission surface 22 of the cover 20 and is emitted toward the ceiling 2 of the room. The ceiling surface illumination light transmission surface 22 of the cover 20 is a second surface through which the light emitted from the above-described second light source is transmitted. Particularly, the inner surface of the floor illumination light transmission surface 21 is arranged perpendicular to the optical axis A of the floor illumination light source 41 . In addition, the ceiling surface irradiation light transmission surface 22 , particularly the inner surface, is arranged perpendicular to the optical axis of the ceiling surface irradiation light source 42 .

図３に示すように、照明装置１は、電源装置５１を備えている。電源装置５１は、例えば、ベース部１０の天井面照射用基板取付部１２より上側であって、２つの天井面照射用基板取付部１２の間の空間に収容されている。電源装置５１は、床面照射用光源４１及び天井面照射用光源４２を点灯させる電力を供給する装置である。 As shown in FIG. 3 , the lighting device 1 includes a power supply device 51 . The power supply device 51 is, for example, above the ceiling surface irradiation substrate mounting portion 12 of the base portion 10 and accommodated in the space between the two ceiling surface irradiation substrate mounting portions 12 . The power supply device 51 is a device that supplies electric power for lighting the light source 41 for illuminating the floor surface and the light source 42 for illuminating the ceiling surface.

図５に示すように、この実施の形態の照明システムは、以上のように構成された照明装置１を複数備えている。複数の照明装置１は、予め設定された配列方向に沿って等しい間隔Ｄで並べて配置されている。照明装置１が取り付けられる天井２には、例えば同形状の天井パネル３が複数敷き詰められている。１つの天井パネル３は、例えば６００ｍｍ四方の正方形状である。このような天井パネル３を利用することで、複数の照明装置１を容易に等間隔で整列させることができる。 As shown in FIG. 5, the lighting system of this embodiment includes a plurality of lighting devices 1 configured as described above. A plurality of lighting devices 1 are arranged side by side at equal intervals D along a preset arrangement direction. A plurality of ceiling panels 3 having the same shape, for example, are laid on the ceiling 2 to which the lighting device 1 is attached. One ceiling panel 3 is, for example, a 600 mm square. By using such a ceiling panel 3, it is possible to easily align a plurality of lighting devices 1 at regular intervals.

それぞれの照明装置１は、天井２の天井面と平行な投影面において、天井面照射用光源４２の光軸Ｂが前述した配列方向と平行になるように配置される。そして、それぞれの照明装置１の天井面照射用光源４２は、前述の配列方向に沿った両方向に光を照射する。それぞれの照明装置１の天井面照射用光源４２の天井面における光照射範囲は、図５に示す天井面光照射範囲４のようになる。 Each lighting device 1 is arranged so that the optical axis B of the ceiling surface illumination light source 42 is parallel to the arrangement direction described above on a projection plane parallel to the ceiling surface of the ceiling 2 . Then, the ceiling surface illumination light source 42 of each lighting device 1 irradiates light in both directions along the arrangement direction described above. The light irradiation range on the ceiling surface of the ceiling surface irradiation light source 42 of each lighting device 1 becomes like the ceiling surface light irradiation range 4 shown in FIG.

以上のように構成された照明装置１及び照明システムによれば、１つの照明装置１で床面及び天井面の両方に光を照射できる。このため、床面に照射する光源の出力を減少させても、天井面に照射した光により天井面の輝度を上げることで、空間全体としては明るく感じさせることができる。 According to the lighting device 1 and the lighting system configured as described above, one lighting device 1 can irradiate both the floor surface and the ceiling surface with light. Therefore, even if the output of the light source that illuminates the floor surface is reduced, the brightness of the ceiling surface is increased by the light that illuminates the ceiling surface, thereby making the entire space feel bright.

この際、天井面照射用光源４２から照射された光は、カバー２０の天井面照射光透過面２２を透過する他には、レンズ、プリズム等により反射、屈折等されることがない。このため、天井面照射用光源４２から照射された光の損失を最小限に抑えることが可能である。また、レンズ、プリズム等を用いずに配光制御できるため、天井面の照射範囲についての設計自由度を向上できる。 At this time, the light emitted from the ceiling surface illumination light source 42 is transmitted through the ceiling surface illumination light transmission surface 22 of the cover 20, and is not reflected or refracted by lenses, prisms, or the like. Therefore, it is possible to minimize the loss of the light emitted from the ceiling surface illumination light source 42 . Moreover, since the light distribution can be controlled without using a lens, a prism, or the like, the degree of freedom in designing the irradiation range of the ceiling surface can be improved.

よって、人が感じる明るさを変えることなく、照明装置１の消費電力量を低減させることが可能である。そして、１つのカバー２０で床面照射用光源４１及び天井面照射用光源４２の両方を一体で覆うことにより、照明装置１として一体感のある外観にすることができるとともに、カバー２０を含む照明装置１の製造が容易になる。 Therefore, it is possible to reduce the power consumption of the lighting device 1 without changing the brightness perceived by people. By integrally covering both the floor surface illumination light source 41 and the ceiling surface illumination light source 42 with a single cover 20, the illumination device 1 can have an appearance with a sense of unity, and illumination including the cover 20 can be obtained. Manufacture of the device 1 is facilitated.

ここで、それぞれの照明装置１の天井面照射用光源４２の前述した配列方向に沿った光照射距離をＸとすると、光照射距離Ｘは、天井面光照射範囲４の前述した配列方向における幅である。この光照射距離Ｘと照明装置１同士の間隔Ｄは、次の（１）式の関係を満たすようにするのがよい。 Here, assuming that the light irradiation distance along the above-described array direction of the ceiling surface irradiation light source 42 of each lighting device 1 is X, the light irradiation distance X is the width of the ceiling surface light irradiation range 4 in the above-described array direction. is. The light irradiation distance X and the distance D between the lighting devices 1 should preferably satisfy the relationship of the following formula (1).

Ｘ≧Ｄ／２ ・・・ （１） X≧D/2 (1)

このようにすることで、天井面の輝度を均一化し、視環境の向上を図ることができる。 By doing so, the brightness of the ceiling surface can be made uniform, and the visual environment can be improved.

図６に示すのは、この実施の形態の照明システムの１つの変形例である。この変形例では、照明装置１は、天井面照射用光源４２が前述した配列方向に沿った２方向だけでなく、配列方向に直交する２方向も加えた計４方向の天井面に光を照射する。このようにすることで、天井面のより広い範囲に光を照射することができ、天井面に光が照射されていない部分ができ難くなり、より均一に天井面の輝度を増加させることが可能である。 Shown in FIG. 6 is one variation of the illumination system of this embodiment. In this modification, the illumination device 1 irradiates light onto the ceiling surface in four directions, not only two directions along the above-described arrangement direction of the ceiling surface irradiation light source 42, but also two directions perpendicular to the arrangement direction. do. By doing so, it is possible to irradiate a wider area of the ceiling surface with light, making it difficult for areas where the light is not irradiated on the ceiling surface to increase the brightness of the ceiling surface more uniformly. is.

次に、図７を参照しながら、以上のように構成された照明システムの照明装置１における制御系統の構成例について説明する。照明装置１は、制御装置５２を備えている。制御装置５２は、例えば、マイクロコンピュータを有する電子回路からなる。この場合、制御装置５２は、プロセッサ及びメモリを備えている。制御装置５２は、電源装置５１が床面照射用光源４１及び天井面照射用光源４２へと供給する電力を制御することで、床面照射用光源４１の出力と天井面照射用光源４２の出力とを制御する。なお、ここでいう光源の出力の制御とは、少なくとも光源を点灯／消灯させることを含む。また、点灯／消灯に加えて、調光制御を行うことができるようにしてもよい。 Next, a configuration example of a control system in the lighting device 1 of the lighting system configured as described above will be described with reference to FIG. The lighting device 1 includes a control device 52 . The control device 52 consists, for example, of an electronic circuit with a microcomputer. In this case, controller 52 comprises a processor and memory. The control device 52 controls the power supplied from the power supply device 51 to the floor illumination light source 41 and the ceiling illumination light source 42, thereby controlling the output of the floor illumination light source 41 and the ceiling illumination light source 42. and control. Note that the control of the output of the light source here includes at least turning on/off the light source. Further, in addition to lighting/lighting out, dimming control may be performed.

この実施の形態の制御装置５２は、床面照射用光源４１の出力と天井面照射用光源４２の出力とを独立して制御可能である。すなわち、例えば、床面照射用光源４１及び天井面照射用光源４２の一方を点灯させ他方を消灯させたり、一方のみを減光させたりする等の制御が可能である。 The control device 52 of this embodiment can independently control the output of the light source 41 for illuminating the floor surface and the output of the light source 42 for illuminating the ceiling surface. That is, for example, control is possible such that one of the light source 41 for illuminating the floor surface and the light source 42 for illuminating the ceiling surface is lit and the other is extinguished, or only one of them is dimmed.

この構成例では、照明装置１は、人検出センサ６１及び照度センサ６２を備えている。人検出センサ６１は、照明装置１が設置された天井２を有する部屋内の人を検出する人検出手段の一例である。人検出センサ６１として、具体的に例えば、可視光カメラ、赤外線カメラ、赤外線センサ、超音波センサ等を用いることができる。照度センサ６２は、当該部屋内の照度を検出する照度検出手段の一例である。 In this configuration example, the lighting device 1 includes a human detection sensor 61 and an illuminance sensor 62 . The human detection sensor 61 is an example of human detection means for detecting a person in the room having the ceiling 2 in which the lighting device 1 is installed. As the human detection sensor 61, for example, a visible light camera, an infrared camera, an infrared sensor, an ultrasonic sensor, or the like can be used. The illuminance sensor 62 is an example of illuminance detection means for detecting the illuminance in the room.

制御装置５２は、人検出センサ６１の検出結果と照度センサ６２の検出結果とに応じて床面照射用光源４１の出力と天井面照射用光源４２の出力とを制御する。したがって、制御装置５２は、当該部屋内の人の有無と当該部屋内の照度とに応じて床面照射用光源４１の出力と天井面照射用光源４２の出力とを制御する。 The control device 52 controls the output of the floor surface illumination light source 41 and the ceiling surface illumination light source 42 according to the detection result of the human detection sensor 61 and the detection result of the illuminance sensor 62 . Therefore, the control device 52 controls the output of the floor illumination light source 41 and the ceiling illumination light source 42 according to the presence or absence of a person in the room and the illuminance in the room.

例えば、部屋内に人がいるときには床面照射用光源４１と天井面照射用光源４２の両方を点灯させる。そして、部屋内に人がいないときには床面照射用光源４１を消灯又は減光させ、天井面照射用光源４２のみ点灯させる。このようにすることで、人が感じる明るさを変えることなく、照明装置１の消費電力量のさらなる低減を図ることができる。 For example, when there is a person in the room, both the floor illumination light source 41 and the ceiling illumination light source 42 are turned on. When there is no person in the room, the light source 41 for illuminating the floor surface is turned off or dimmed, and only the light source 42 for illuminating the ceiling surface is turned on. By doing so, it is possible to further reduce the power consumption of the lighting device 1 without changing the brightness that people perceive.

この際、人検出センサ６１は部屋内の人の有無のみならず、部屋内の人の位置を検出できるようにしてもよい。そして、人がいる位置の床面照射用光源４１を点灯させて、人がいない位置の床面照射用光源４１は消灯させてもよい。このようにすることで、明るさが必要なところへの光の照射と、消費電力量の削減とをバランスよく両立できる。 At this time, the human detection sensor 61 may detect not only the presence or absence of a person in the room but also the position of the person in the room. Then, the floor illumination light source 41 at the position where the person is present may be turned on, and the floor illumination light source 41 at the position where the person is not present may be extinguished. By doing so, it is possible to strike a good balance between irradiating light to areas that require brightness and reducing power consumption.

また例えば、部屋内の照度が自然光により十分保たれている場合（部屋内の照度が予め設定された基準値以上の場合）、天井面照射用光源４２を消灯又は減光させ、床面照射用光源４１のみ点灯させる。そして、部屋内の照度が自然光だけでは不足している場合（部屋内の照度が前述の基準値未満の場合）、床面照射用光源４１と天井面照射用光源４２の両方を点灯させる。このようにすることで、人が感じる明るさを変えることなく、照明装置１の消費電力量のさらなる低減を図ることができる。 Further, for example, when the illuminance in the room is sufficiently maintained by natural light (when the illuminance in the room is equal to or higher than a preset reference value), the ceiling surface illumination light source 42 is turned off or dimmed, and the floor surface illumination light source 42 is turned off or dimmed. Only the light source 41 is turned on. When the illuminance in the room is insufficient only with natural light (when the illuminance in the room is less than the above-described reference value), both the floor surface illumination light source 41 and the ceiling surface illumination light source 42 are turned on. By doing so, it is possible to further reduce the power consumption of the lighting device 1 without changing the brightness that people perceive.

図８に示すのは、この実施の形態の照明装置１の１つの変形例である。この変形例は、これまでに説明した図１から図４に示す構成例において、ベース部１０の形状を変えたものである。すなわち、図１から図４に示す構成例では、ベース部１０の断面をコ字状とし、天井面照射用基板取付部１２の下端部の高さに床面照射用基板取付部１１が配置されていた。これに対し、図８に示す変形例では、天井面照射用基板取付部１２の下端を上方に折り返してから床面照射用基板取付部１１を設けることで、天井面照射用基板取付部１２の上端部の高さに床面照射用基板取付部１１が配置されるようにしている。なお、電源装置５１については、カバー２０内の他の箇所、又は、カバー２０の外部等に適宜設けられる。その他の構成については、図１から図４に示す構成例と同様である。このような変形例によれば、床面照射用光源４１からカバー２０の床面照射光透過面２１までの距離がとりやすくなり、照明装置１全体を薄型化しやすい。 FIG. 8 shows a modification of the illumination device 1 of this embodiment. This modification is obtained by changing the shape of the base portion 10 in the configuration examples shown in FIGS. 1 to 4 described above. That is, in the configuration examples shown in FIGS. 1 to 4 , the cross section of the base portion 10 is U-shaped, and the floor irradiation substrate mounting portion 11 is arranged at the height of the lower end portion of the ceiling surface irradiation substrate mounting portion 12 . was On the other hand, in the modified example shown in FIG. The substrate mounting portion 11 for floor irradiation is arranged at the height of the upper end portion. Note that the power supply device 51 is appropriately provided at another location inside the cover 20 or outside the cover 20 or the like. Other configurations are the same as the configuration examples shown in FIGS. According to such a modification, the distance from the floor illumination light source 41 to the floor illumination light transmission surface 21 of the cover 20 can be easily secured, and the lighting device 1 as a whole can be easily thinned.

図９に示すのは、この実施の形態の照明装置１の別の変形例である。この変形例の照明装置１は、光拡散性カバー７０をさらに備えている。光拡散性カバー７０は、カバー２０の内側において、床面照射用光源４１及び天井面照射用光源４２とカバー２０との間に設けられている。光拡散性カバー７０は、床面照射用光源４１及び天井面照射用光源４２から照射される光に対して例えば半透明な素材からなり、照射される光を拡散させる性質を有する。この変形例の光拡散性カバー７０は、床面照射用光源４１及び天井面照射用光源４２から照射された光を拡散させる光拡散手段の一例である。 FIG. 9 shows another modification of the illumination device 1 of this embodiment. The lighting device 1 of this modified example further includes a light diffusion cover 70 . The light diffusion cover 70 is provided inside the cover 20 between the light source 41 for illuminating the floor surface and the light source 42 for illuminating the ceiling surface and the cover 20 . The light diffusing cover 70 is made of, for example, a translucent material with respect to the light emitted from the floor surface illumination light source 41 and the ceiling surface illumination light source 42, and has a property of diffusing the emitted light. The light diffusing cover 70 of this modified example is an example of light diffusing means for diffusing the light emitted from the floor surface illumination light source 41 and the ceiling surface illumination light source 42 .

前述したように、床面照射用光源４１及び天井面照射用光源４２としてＬＥＤを用いた場合、そのままでは個々のＬＥＤの形状が粒状に目立ってしまったり、天井２を見上げた人が眩しさを感じてしまったりすることがある。そこで、このような光拡散手段を備えることで、個々のＬＥＤの形状が目立たないようにして、照射される光の均一性を向上できるとともに、眩しさを抑制できる。 As described above, when LEDs are used as the floor surface illumination light source 41 and the ceiling surface illumination light source 42, the shape of the individual LEDs may stand out as they are, and the person looking up at the ceiling 2 may experience glare. Sometimes I feel relaxed. Therefore, by providing such a light diffusing means, the shape of each LED can be made inconspicuous, and the uniformity of the emitted light can be improved, and glare can be suppressed.

なお、カバー２０の天井面照射光透過面２２を、プリズムにしてもよい。このようにすることで、天井面照射用光源４２から照射された光が天井面照射光透過面２２を透過する際にプリズムにより屈折、反射させ、光の天井面への照射量を増加させて天井面の輝度を向上できる。 Note that the ceiling surface irradiation light transmission surface 22 of the cover 20 may be a prism. By doing so, the light emitted from the ceiling surface illumination light source 42 is refracted and reflected by the prisms when passing through the ceiling surface illumination light transmission surface 22, thereby increasing the irradiation amount of the light to the ceiling surface. The brightness of the ceiling surface can be improved.

実施の形態２．
図１０及び図１１は、この発明の実施の形態２に係るものである。図１０は照明システムの全体図である。そして、図１１は照明システムの変形例の全体図である。 Embodiment 2.
10 and 11 relate to Embodiment 2 of the present invention. FIG. 10 is an overall view of the lighting system. FIG. 11 is an overall view of a modification of the lighting system.

ここで説明する実施の形態２は、前述した実施の形態１の構成において、照明装置の片側だけに天井面照射用光源を設けるようにしたものである。以下、この実施の形態２に係る照明装置及び照明システムについて、実施の形態１との相違点を中心に説明する。説明を省略した構成については実施の形態１と基本的に同様である。 Embodiment 2 described here is obtained by providing a ceiling surface illumination light source only on one side of the lighting device in the configuration of Embodiment 1 described above. The lighting apparatus and lighting system according to the second embodiment will be described below, focusing on differences from the first embodiment. The configuration whose description is omitted is basically the same as that of the first embodiment.

この実施の形態に係る照明システムにおいては、図１０に示すように、それぞれの照明装置１の天井面照射用光源４２は、予め設定された配列方向に沿った一方向に光を照射する。すなわち、照明装置１の片側だけに天井面照射用光源４２が設けられている。そして、前述した配列方向に沿って並ぶ各照明装置１は、天井面照射用光源４２が同じ側になる向きに配置される。 In the lighting system according to this embodiment, as shown in FIG. 10, the ceiling surface illumination light source 42 of each lighting device 1 irradiates light in one direction along a preset arrangement direction. That is, the ceiling surface illumination light source 42 is provided only on one side of the illumination device 1 . The lighting devices 1 arranged along the arrangement direction described above are arranged so that the ceiling surface illumination light sources 42 are on the same side.

この実施の形態では、それぞれの照明装置１の天井面照射用光源４２の前述した配列方向に沿った光照射距離Ｘと照明装置１同士の間隔Ｄは、次の（２）式の関係を満たすようにするのがよい。 In this embodiment, the light irradiation distance X along the arrangement direction of the ceiling surface illumination light source 42 of each lighting device 1 and the interval D between the lighting devices 1 satisfy the following equation (2): It is better to

Ｘ≧Ｄ ・・・ （２） X≧D (2)

このようにすることで、天井面の輝度を均一化し、視環境の向上を図ることができる。 By doing so, the brightness of the ceiling surface can be made uniform, and the visual environment can be improved.

さらに、この実施の形態のように照明装置１の片側だけに天井面照射用光源４２を設ける場合、変形例として図１１に示すように、４つの照明装置１で正方形を形成するように配置してもよい。この場合、それぞれの照明装置１の天井面照射用光源４２のある側が外側に向き、天井面照射用光源４２のない側が内側に向くようにする。このようにすることで、天井面を照射する配光が円形に近い形状となり、より均一に天井面を照射することができる。 Furthermore, when the ceiling surface illumination light source 42 is provided only on one side of the illumination device 1 as in this embodiment, as a modification shown in FIG. 11, four illumination devices 1 are arranged so as to form a square. may In this case, the side with the ceiling surface illumination light source 42 of each lighting device 1 faces outward, and the side without the ceiling surface illumination light source 42 faces inward. By doing so, the light distribution that irradiates the ceiling surface becomes a shape close to a circle, and the ceiling surface can be irradiated more uniformly.

以上のように構成された照明装置及び照明システムにおいても、実施の形態１と同様に、１つの照明装置１で床面及び天井面の両方に光を照射できる。このため、床面に照射する光源の出力を減少させても、天井面に照射した光により天井面の輝度を上げることで、空間全体としては明るく感じさせることができる。 In the lighting device and lighting system configured as described above, as in the first embodiment, one lighting device 1 can irradiate both the floor surface and the ceiling surface with light. Therefore, even if the output of the light source that illuminates the floor surface is reduced, the brightness of the ceiling surface is increased by the light that illuminates the ceiling surface, thereby making the entire space feel bright.

この際、天井面照射用光源４２から照射された光は、カバー２０の天井面照射光透過面２２を透過する他には、レンズ、プリズム等により反射、屈折等されることがない。このため、天井面照射用光源４２から照射された光の損失を最小限に抑えることが可能である。また、レンズ、プリズム等を用いずに配光制御できるため、天井面の照射範囲についての設計自由度を向上できる。 At this time, the light emitted from the ceiling surface illumination light source 42 is transmitted through the ceiling surface illumination light transmission surface 22 of the cover 20, and is not reflected or refracted by lenses, prisms, or the like. Therefore, it is possible to minimize the loss of the light emitted from the ceiling surface illumination light source 42 . Moreover, since the light distribution can be controlled without using a lens, a prism, or the like, the degree of freedom in designing the irradiation range of the ceiling surface can be improved.

よって、人が感じる明るさを変えることなく、照明装置１の消費電力量を低減させることが可能である。そして、１つのカバー２０で床面照射用光源４１及び天井面照射用光源４２の両方を一体で覆うことにより、照明装置１として一体感のある外観にすることができるとともに、カバー２０を含む照明装置１の製造が容易になる。 Therefore, it is possible to reduce the power consumption of the lighting device 1 without changing the brightness perceived by people. By integrally covering both the floor surface illumination light source 41 and the ceiling surface illumination light source 42 with a single cover 20, the illumination device 1 can have an appearance with a sense of unity, and illumination including the cover 20 can be obtained. Manufacture of the device 1 is facilitated.

１ 照明装置
２ 天井
３ 天井パネル
４ 天井面光照射範囲
１０ ベース部
１１ 床面照射用基板取付部
１２ 天井面照射用基板取付部
２０ カバー
２１ 床面照射光透過面
２２ 天井面照射光透過面
３１ 床面照射用基板
３２ 天井面照射用基板
４１ 床面照射用光源
４２ 天井面照射用光源
５１ 電源装置
５２ 制御装置
６１ 人検出センサ
６２ 照度センサ
７０ 光拡散性カバー Reference Signs List 1 illumination device 2 ceiling 3 ceiling panel 4 ceiling surface light irradiation range 10 base portion 11 floor irradiation substrate mounting portion 12 ceiling surface irradiation substrate mounting portion 20 cover 21 floor irradiation light transmission surface 22 ceiling surface irradiation light transmission surface 31 Board for floor illumination 32 Board for ceiling illumination 41 Light source for floor illumination 42 Light source for ceiling illumination 51 Power supply device 52 Control device 61 Human detection sensor 62 Illuminance sensor 70 Light diffusion cover

Claims (7)

天井に取り付けられたベース部と、
前記ベース部に設けられ、第１の光源が実装された第１の基板と、
前記ベース部に設けられ、第２の光源が実装された第２の基板と、
前記第１の光源と前記第２の光源とを一体で覆うカバーと、を備え、
前記第１の光源の光軸は、前記天井の天井面に対して垂直であり、
前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は、９０°以上であり、
前記カバーは、
前記第１の光源から照射された光が透過する第１の面と、
前記第２の光源から照射された光が透過する第２の面と、を有し、
前記第１の面は、前記第１の光源の光軸に対して垂直に配置され、
前記第２の面は、前記第２の光源の光軸に対して垂直に配置される照明装置。 a base attached to the ceiling;
a first substrate provided on the base portion and having a first light source mounted thereon;
a second substrate provided on the base portion and having a second light source mounted thereon;
a cover that integrally covers the first light source and the second light source;
the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling;
The angle formed by the optical axis of the first light source and the optical axis of the second light source is 90° or more,
The cover is
a first surface through which light emitted from the first light source is transmitted;
a second surface through which the light emitted from the second light source is transmitted;
the first surface is arranged perpendicular to the optical axis of the first light source;
The lighting device , wherein the second surface is arranged perpendicular to the optical axis of the second light source . 天井に取り付けられたベース部と、a base attached to the ceiling;
前記ベース部に設けられ、第１の光源が実装された第１の基板と、a first substrate provided on the base portion and having a first light source mounted thereon;
前記ベース部に設けられ、第２の光源が実装された第２の基板と、a second substrate provided on the base portion and having a second light source mounted thereon;
前記第１の光源と前記第２の光源とを一体で覆うカバーと、を備え、a cover that integrally covers the first light source and the second light source;
前記第１の光源の光軸は、前記天井の天井面に対して垂直であり、the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling;
前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は、９０°以上であり、The angle formed by the optical axis of the first light source and the optical axis of the second light source is 90° or more,
前記第１の光源及び前記第２の光源と前記カバーとの間に設けられ、provided between the first light source and the second light source and the cover;
前記第１の光源及び前記第２の光源から照射された光を拡散させる光拡散手段をさらに備えた照明装置。An illumination device further comprising light diffusing means for diffusing the light emitted from the first light source and the second light source. 前記カバーは、
前記第１の光源から照射された光が透過する第１の面と、
前記第２の光源から照射された光が透過する第２の面と、を有し、
前記第１の面は、前記第１の光源の光軸に対して垂直に配置され、
前記第２の面は、前記第２の光源の光軸に対して垂直に配置される請求項２に記載の照明装置。 The cover is
a first surface through which light emitted from the first light source is transmitted;
a second surface through which the light emitted from the second light source is transmitted;
the first surface is arranged perpendicular to the optical axis of the first light source;
3. The lighting device according to claim 2 , wherein said second surface is arranged perpendicular to the optical axis of said second light source. 前記第１の光源の出力と前記第２の光源の出力とを独立して制御可能な制御装置をさらに備えた請求項１から請求項３のいずれか一項に記載の照明装置。 4. The lighting device according to any one of claims 1 to 3, further comprising a control device capable of independently controlling the output of said first light source and the output of said second light source. 前記天井を有する部屋内の人を検出する人検出手段と、
前記部屋内の照度を検出する照度検出手段と、をさらに備え、
前記制御装置は、前記部屋内の人の有無と前記部屋内の照度とに応じて前記第１の光源の出力と前記第２の光源の出力とを制御する請求項４に記載の照明装置。 a person detection means for detecting a person in the room having the ceiling;
illuminance detection means for detecting illuminance in the room,
5. The lighting device according to claim 4, wherein the control device controls the output of the first light source and the output of the second light source according to the presence or absence of people in the room and the illuminance in the room. 天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーとを有し、前記第１の光源の光軸は前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は９０°以上である照明装置を複数備え、
複数の前記照明装置は、予め設定された配列方向に沿って等しい間隔で並べて配置され、
それぞれの前記照明装置の前記第２の光源は、前記配列方向に沿った両方向に光を照射し、
それぞれの前記照明装置の前記第２の光源の前記配列方向に沿った光照射距離は、前記間隔の半分以上である照明システム。 A base portion attached to the ceiling, a first substrate provided on the base portion on which a first light source is mounted, and a second substrate provided on the base portion on which a second light source is mounted. and a cover integrally covering the first light source and the second light source, wherein the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling, and the first light source A plurality of lighting devices having an angle of 90° or more between the optical axis and the optical axis of the second light source ,
The plurality of lighting devices are arranged side by side at equal intervals along a preset arrangement direction,
the second light source of each of the lighting devices emits light in both directions along the arrangement direction;
The illumination system, wherein a light irradiation distance along the arrangement direction of the second light sources of each of the illumination devices is equal to or greater than half of the interval. 天井に取り付けられたベース部と、前記ベース部に設けられ、第１の光源が実装された第１の基板と、前記ベース部に設けられ、第２の光源が実装された第２の基板と、前記第１の光源と前記第２の光源とを一体で覆うカバーとを有し、前記第１の光源の光軸は前記天井の天井面に対して垂直であり、前記第１の光源の光軸と前記第２の光源の光軸とのなす角度は９０°以上である照明装置を複数備え、
複数の前記照明装置は、予め設定された配列方向に沿って等しい間隔で並べて配置され、
それぞれの前記照明装置の前記第２の光源は、前記配列方向に沿った一方向に光を照射し、
それぞれの前記照明装置の前記第２の光源の前記配列方向に沿った光照射距離は、前記間隔以上である照明システム。 A base portion attached to the ceiling, a first substrate provided on the base portion on which a first light source is mounted, and a second substrate provided on the base portion on which a second light source is mounted. and a cover integrally covering the first light source and the second light source, wherein the optical axis of the first light source is perpendicular to the ceiling surface of the ceiling, and the first light source A plurality of lighting devices having an angle of 90° or more between the optical axis and the optical axis of the second light source ,
The plurality of lighting devices are arranged side by side at equal intervals along a preset arrangement direction,
The second light source of each of the lighting devices emits light in one direction along the arrangement direction,
The illumination system, wherein a light irradiation distance along the arrangement direction of the second light sources of each of the illumination devices is equal to or greater than the interval.
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JP2011165577A (en) 2010-02-12 2011-08-25 Panasonic Electric Works Co Ltd Luminaire and lighting system
JP2012123982A (en) 2010-12-07 2012-06-28 Mitsubishi Electric Corp Lighting system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011165577A (en) 2010-02-12 2011-08-25 Panasonic Electric Works Co Ltd Luminaire and lighting system
JP2012123982A (en) 2010-12-07 2012-06-28 Mitsubishi Electric Corp Lighting system

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