JP2021072171A

JP2021072171A - Lighting device

Info

Publication number: JP2021072171A
Application number: JP2019196426A
Authority: JP
Inventors: 智弥関; Tomoya Seki; 毅江原; Takeshi Ebara
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2021-05-06

Abstract

To provide a lighting device that easily provides beautiful and clear illumination light.SOLUTION: A lighting device 1 comprises: a flat lamp 40 that has a power supply that converts input power to generate output power, and a light emission unit 80 that emits light from a light emitting unit and has a substantially circular light emission end surface 71, wherein a diameter of the light emission end surface 71 is longer than a height dimension; and a shade 30 in which the flat lamp 40 is housed so as to cover the side surface of the flat lamp 40 over the entire circumference, and the light emission side of the flat lamp 40 is opened. The shade 30 has a transparent cylindrical part 38 at least on the opening side in the light emission direction.SELECTED DRAWING: Figure 1

Description

本開示は、照明装置に関する。 The present disclosure relates to a lighting device.

従来、照明装置としては、特許文献１に記載されているスポットライトがある。このスポットライトは、セード（フード）と、ＬＥＤ（light emitting diode）電球を備える。セードは、ＬＥＤ電球収容スペースを画定する筒状部を有し、筒状部は、光出射側が開口している。このスポットライトでは、ＬＥＤ電球がフードに適切に固定された状態で、ＬＥＤ電球の光出射面がフードよりも光出射側に突出している。 Conventionally, as a lighting device, there is a spotlight described in Patent Document 1. The spotlight comprises a shade (hood) and an LED (light emitting diode) bulb. The shade has a tubular portion that defines a space for accommodating the LED bulb, and the tubular portion has an opening on the light emitting side. In this spotlight, the light emitting surface of the LED bulb projects toward the light emitting side of the hood in a state where the LED bulb is properly fixed to the hood.

特開２０１２−１１９２５７号公報Japanese Unexamined Patent Publication No. 2012-119257

しかし、特許文献１のようにＬＥＤ電球を突出してしまうと、フレネルレンズ加工した凹凸部位やレンズ機能を有するカバーの側壁部などから起因する迷光が発生し、狭角制御ができても設置した灯具近傍の壁面に輝線や照度ムラが生じてしまい、照明光が美しくて綺麗な光になりにくい。 However, if the LED bulb is projected as in Patent Document 1, stray light is generated from the uneven portion processed by the Fresnel lens and the side wall portion of the cover having the lens function, and the lamp is installed even if the narrow angle control is possible. Bright lines and uneven illuminance occur on the wall surface in the vicinity, and it is difficult for the illumination light to be beautiful and beautiful.

そこで、本開示の目的は、照明光を美しくて綺麗な光にし易い照明装置を提供することにある。 Therefore, an object of the present disclosure is to provide an illuminating device that makes it easy to make the illuminating light beautiful and beautiful.

上記課題を解決するため、本開示に係る照明装置は、入力電力を変換して出力電力を生成する電源装置、及び発光部からの光を出射すると共に光出射端面が略円形である光出射部を有し、光出射端面の直径が高さ方向の寸法よりも長いフラットランプと、フラットランプの側面を全周に亘って覆うようにフラットランプを内部に収容し、フラットランプの光出射側が開口するセードと、を備え、セードは、少なくとも高さ方向の開口側に透明材質で構成される透明筒状部を有する。 In order to solve the above problems, the lighting device according to the present disclosure includes a power supply device that converts input power to generate output power, and a light emitting unit that emits light from a light emitting unit and has a substantially circular light emitting end face. The flat lamp has a light emitting end face whose diameter is longer than the dimension in the height direction, and the flat lamp is housed so as to cover the side surface of the flat lamp over the entire circumference, and the light emitting side of the flat lamp is opened. The shade has a transparent tubular portion made of a transparent material at least on the opening side in the height direction.

なお、上記高さ方向に関して、光出射部における光出射部側の端の位置が、セードの開口の位置よりも光出射側と反対側に位置する場合、セードがフラットランプを内部に収容するという要件を満たすものとする。そして、上記高さ方向に関して、光出射部における光出射部側の端の位置が、セードの開口の位置と同一である場合、セードがフラットランプを内部に収容するという要件を満たさないものとする。 In the above height direction, when the position of the end of the light emitting portion on the light emitting portion side is located on the side opposite to the light emitting side from the position of the opening of the shade, the shade accommodates the flat lamp inside. Shall meet the requirements. Then, in the above-mentioned height direction, when the position of the end of the light emitting portion on the light emitting portion side is the same as the position of the opening of the shade, the requirement that the shade accommodates the flat lamp inside is not satisfied. ..

本開示に係る照明装置によれば、照明光を美しくて綺麗な光にし易い。 According to the lighting device according to the present disclosure, it is easy to make the lighting light beautiful and beautiful.

本開示の第１実施形態に係る照明装置の斜視図である。It is a perspective view of the lighting apparatus which concerns on 1st Embodiment of this disclosure. 上記照明装置の主要部の分解斜視図である。It is an exploded perspective view of the main part of the said lighting apparatus. 上記主要部を別の方向から見たときの分解斜視図である。It is an exploded perspective view when the said main part is seen from another direction. 上記照明装置において本体が旋回可能な範囲を説明する図である。It is a figure explaining the range which the main body can turn in the said lighting apparatus. 上記照明装置を図１とは別の方向から見たときの斜視図である。It is a perspective view when the said lighting apparatus is seen from the direction different from FIG. 上記照明装置のフラットランプを光出射側から見たときの斜視図である。It is a perspective view when the flat lamp of the said lighting apparatus is seen from the light emitting side. 上記フラットランプを反光出射側から見たときの斜視図である。It is a perspective view when the flat lamp is seen from the reflection side. セード及びフラットランプを取り外した状態の上記照明装置を示す斜視図である。It is a perspective view which shows the said lighting apparatus in the state which the shade and the flat lamp are removed. セードの筒状部の中心軸が柱部の中心軸に対して略９０度傾斜している状態の照明装置を、光出射側から見たときの正面図である。It is a front view of the illuminating device in a state where the central axis of the tubular portion of the shade is inclined by about 90 degrees with respect to the central axis of the pillar portion, when viewed from the light emitting side. 電源装置における不透明材質で構成されたケースの影が、セードの透明筒状部に生じている状態を説明する模式図である。It is a schematic diagram explaining the state which the shadow of the case made of an opaque material in a power supply device is generated in the transparent tubular part of a shade. 第２実施形態の照明装置の斜視図である。It is a perspective view of the lighting apparatus of 2nd Embodiment. 第２実施形態の照明装置の取付板以外の部分を示す斜視図である。It is a perspective view which shows the part other than the mounting plate of the lighting apparatus of 2nd Embodiment. 第２実施形態の照明装置においてセードの図示を省略したときの斜視図である。It is a perspective view when the illustration of the shade is omitted in the lighting apparatus of 2nd Embodiment. 第２実施形態の照明装置の連結部材（ガイド部材）の斜視図である。It is a perspective view of the connecting member (guide member) of the lighting apparatus of 2nd Embodiment. ばね部材によるヒンジ部の締付力を調整する機構を説明する第２実施形態の照明装置の一部の斜視図である。It is a perspective view of a part of the lighting apparatus of 2nd Embodiment explaining the mechanism which adjusts the tightening force of the hinge part by a spring member. 図１３に示す状態よりもばね部材によるヒンジ部の付勢力が大きくなっている状態を示す第２実施形態の照明装置の一部の斜視図である。FIG. 3 is a perspective view of a part of the lighting device of the second embodiment showing a state in which the urging force of the hinge portion by the spring member is larger than the state shown in FIG.

以下に、本開示に係る実施の形態について添付図面を参照しながら詳細に説明する。なお、以下において複数の実施形態や変形例などが含まれる場合、それらの特徴部分を適宜に組み合わせて新たな実施形態を構築することは当初から想定されている。また、以下の実施例では、図面において同一構成に同一符号を付し、重複する説明を省略する。また、異なる図間において、各部材における、縦、横、高さ等の寸法比は、必ずしも一致しない。また、以下の説明において、径方向は、以下に説明するフラットランプ４０の略円形の光出射端面７１の径方向であり、周方向は、その光出射端面７１の周方向である。また、光出射方向は、その光出射端面７１の中心軸の延在方向であり、以下に説明するセード（フード）３０の高さ方向（セード３０の中心軸の方向）に一致する。 Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. When a plurality of embodiments and modifications are included in the following, it is assumed from the beginning that a new embodiment is constructed by appropriately combining the characteristic portions thereof. Further, in the following examples, the same components are designated by the same reference numerals in the drawings, and duplicate description will be omitted. In addition, the dimensional ratios such as length, width, and height of each member do not always match between different drawings. Further, in the following description, the radial direction is the radial direction of the substantially circular light emitting end face 71 of the flat lamp 40 described below, and the circumferential direction is the circumferential direction of the light emitting end face 71. The light emitting direction is the extending direction of the central axis of the light emitting end face 71, and coincides with the height direction of the shade (hood) 30 described below (the direction of the central axis of the shade 30).

また、以下の説明で、光出射側とは、光出射方向における光出射側を指し、反光出射側とは、光出射方向における光出射側とは反対側を指す。また、Ｘ方向は、以下に説明する土台（取付部）５の厚さ方向（高さ方向）を指し、以下に説明する柱部１５の高さ方向に一致する。また、以下で説明される構成要素のうち、最上位概念を示す独立請求項に記載されていない構成要素については、任意の構成要素であり、必須の構成要素ではない。また、本明細書で、「略」という文言を用いた場合、「大雑把に言って」という文言と同じ意味合いで用いており、「略〜」という要件は、人がだいたい〜のように見えれば満たされる。例を挙げれば、略円形という要件は、人がだいたい円形に見えれば満たされる。 Further, in the following description, the light emitting side refers to the light emitting side in the light emitting direction, and the antilight emitting side refers to the side opposite to the light emitting side in the light emitting direction. Further, the X direction refers to the thickness direction (height direction) of the base (mounting portion) 5 described below, and coincides with the height direction of the pillar portion 15 described below. Further, among the components described below, the components not described in the independent claims indicating the highest level concept are arbitrary components and are not essential components. In addition, when the word "abbreviation" is used in this specification, it is used in the same meaning as the word "roughly speaking", and the requirement "abbreviation" is used if the person looks like "abbreviation". It is filled. For example, the requirement of a substantially circular shape is met if a person looks roughly circular.

（第１実施形態）
図１は、本開示の第１実施形態に係る照明装置１の斜視図であり、図２は、照明装置１の主要部１０の分解斜視図である。図１に示すように、照明装置は、スポットライトであり、土台５、柱部１５、本体２０、及びフラットランプ４０を備え、フラットランプ４０は、本体２０に着脱可能になっている。本体２０は、セード３０を有し、セード３０は、フラットランプ４０の光出射側が開口する筒状部３０ａを有する。フラットランプ４０が、本体２０の所定位置に取り付けられている状態において、筒状部３０ａは、フラットランプ４０の側面を全周に亘って覆い、フラットランプ４０は、筒状部３０ａの内部に収容される。 (First Embodiment)
FIG. 1 is a perspective view of the lighting device 1 according to the first embodiment of the present disclosure, and FIG. 2 is an exploded perspective view of a main portion 10 of the lighting device 1. As shown in FIG. 1, the lighting device is a spotlight, includes a base 5, a pillar portion 15, a main body 20, and a flat lamp 40, and the flat lamp 40 is removable from the main body 20. The main body 20 has a shade 30, and the shade 30 has a tubular portion 30a through which the light emitting side of the flat lamp 40 opens. In a state where the flat lamp 40 is attached to a predetermined position of the main body 20, the tubular portion 30a covers the side surface of the flat lamp 40 over the entire circumference, and the flat lamp 40 is housed inside the tubular portion 30a. Will be done.

図２に示すように、土台５は、取付板２と、柱取付部３を有し、取付板２は、平板部２ａを含む。平板部２ａには、複数の貫通孔２ｂ〜２ｅが設けられる。複数の貫通孔２ｂ〜２ｅには、商用電源からの電力を供給するためのケーブルを通過させるための配線挿通孔２ｃ,２ｄが含まれる。また、複数の貫通孔２ｂ〜２ｅには、平板部２ａを、所定位置、例えば、天井の下面、側壁の鉛直方向延在面、又は水平面の上面等に取り付けるための取付用貫通孔２ｂ,２ｅが含まれる。 As shown in FIG. 2, the base 5 has a mounting plate 2 and a pillar mounting portion 3, and the mounting plate 2 includes a flat plate portion 2a. The flat plate portion 2a is provided with a plurality of through holes 2b to 2e. The plurality of through holes 2b to 2e include wiring insertion holes 2c and 2d for passing a cable for supplying electric power from a commercial power source. Further, in the plurality of through holes 2b to 2e, mounting through holes 2b, 2e for attaching the flat plate portion 2a to a predetermined position, for example, the lower surface of the ceiling, the vertically extending surface of the side wall, the upper surface of the horizontal plane, or the like. Is included.

取付板２は、平板部２ａからその法線方向に延在する１以上の固定用軸部２ｆを有する。他方、柱取付部３は、筒状部３ａと、筒状部３ａと一体成型される蓋部３ｂを含む。筒状部３ａは、軸方向の一方側のみが開口し、蓋部３ｂは、筒状部３ａの軸方向の他方側を塞いでいる。蓋部３ｂは、中央部に柱部１５を取り付けるために貫通孔を有する。また、柱取付部３は、蓋部３ｂから軸方向に延在する１以上の筒状係止部３ｃを有する。筒状係止部３ｃの数は、固定用軸部２ｆの数と一致する。 The mounting plate 2 has one or more fixing shaft portions 2f extending from the flat plate portion 2a in the normal direction thereof. On the other hand, the pillar mounting portion 3 includes a tubular portion 3a and a lid portion 3b integrally molded with the tubular portion 3a. The tubular portion 3a is open only on one side in the axial direction, and the lid portion 3b closes the other side in the axial direction of the tubular portion 3a. The lid portion 3b has a through hole in the central portion for attaching the pillar portion 15. Further, the pillar mounting portion 3 has one or more tubular locking portions 3c extending in the axial direction from the lid portion 3b. The number of tubular locking portions 3c coincides with the number of fixing shaft portions 2f.

柱部１５は、一方側端部の外周面に雄ねじを有する筒構造を有する。土台５、及び柱部１５は、例えば、次の順序で天井や水平面等の所定位置に固定される。詳しくは、先ず、ねじ等を用いて、取付板２を所定位置に固定する。また、柱部１５の一方側端部を、蓋部３ｂの貫通孔に挿通し、一方側端部を、柱取付部３の筒状部３ａ内に収容する。その後、ナット７を一方側端部の雄ねじに螺合して、蓋部３ｂ側に締め付けることで、柱部１５を蓋部３ｂに固定する。 The pillar portion 15 has a tubular structure having a male screw on the outer peripheral surface of one end portion. The base 5 and the pillar portion 15 are fixed at predetermined positions such as the ceiling and the horizontal plane in the following order, for example. Specifically, first, the mounting plate 2 is fixed at a predetermined position using screws or the like. Further, one side end of the pillar portion 15 is inserted into the through hole of the lid portion 3b, and the one side end portion is housed in the tubular portion 3a of the pillar mounting portion 3. After that, the nut 7 is screwed into the male screw at one end and tightened to the lid 3b side to fix the pillar 15 to the lid 3b.

続いて、柱取付部３の筒状係止部３ｃを、取付板２の固定用軸部２ｆを内部に収容するように固定用軸部２ｆに最後まで嵌合させる。この嵌合により、固定用軸部２ｆの先端側の端部が、蓋部３ｂから筒状部３ａ側とは反対側にＸ方向に突出する。この突出部の外周面には雄ねじが設けられている。その雄ねじにナット８（図１参照）の雌ねじを螺合して、そのナット８を蓋部３ｂ側に締め付けることで、柱取付部３が、所定位置に固定されている取付板２に取り付けられ、土台５及び柱部１５が一体化されると共に、所定位置に固定される。貫通孔商用電源からのケーブルは、取付板２の配線挿通孔２ｃ又は２ｄを介して筒状部３ａ内に引き込まれる。柱部１５は、筒構造を有するが、その貫通孔には、ケーブルの一部が収容され、後述する電源装置に接続される。なお、土台は、如何なる構造で所定位置に固定されてもよい。例えば、土台は、天井等に設置されている引っ掛けシーリングに固定可能な構造を有してもよく、照明装置は、引っ掛けシーリングを介して商用電源から交流電力が供給可能な構成を有してもよい。 Subsequently, the tubular locking portion 3c of the pillar mounting portion 3 is fitted to the fixing shaft portion 2f to the end so as to accommodate the fixing shaft portion 2f of the mounting plate 2 inside. By this fitting, the end portion on the tip end side of the fixing shaft portion 2f projects from the lid portion 3b to the side opposite to the tubular portion 3a side in the X direction. A male screw is provided on the outer peripheral surface of this protruding portion. By screwing the female screw of the nut 8 (see FIG. 1) into the male screw and tightening the nut 8 to the lid portion 3b side, the pillar mounting portion 3 is attached to the mounting plate 2 fixed at a predetermined position. , The base 5 and the pillar portion 15 are integrated and fixed at a predetermined position. Through hole The cable from the commercial power supply is drawn into the tubular portion 3a through the wiring insertion hole 2c or 2d of the mounting plate 2. The pillar portion 15 has a tubular structure, and a part of the cable is accommodated in the through hole thereof, and is connected to a power supply device described later. The base may be fixed at a predetermined position with any structure. For example, the base may have a structure that can be fixed to a hook ceiling installed on the ceiling or the like, and the lighting device may have a configuration in which AC power can be supplied from a commercial power source via the hook ceiling. Good.

照明装置１では、柱部１５に対する本体２０の傾斜角度を調整可能になっている。次にそれを可能にする構造について説明する。図２に示すように、本体２０は、連結部材２５、セード３０、ランプ取付体３５、ばね部材３７を有する。連結部材２５、セード３０、及びランプ取付体３５は、図示しない締結手段等の固定手段を用いて一体に統合される。 In the lighting device 1, the inclination angle of the main body 20 with respect to the pillar portion 15 can be adjusted. Next, the structure that makes it possible will be described. As shown in FIG. 2, the main body 20 has a connecting member 25, a shade 30, a lamp mounting body 35, and a spring member 37. The connecting member 25, the shade 30, and the lamp mounting body 35 are integrally integrated by using a fixing means such as a fastening means (not shown).

また、柱部１５は、連結部材２５、及びばね部材３７を用いて連結部材２５に旋回可能に固定される。詳しくは、柱部１５は、略Ｔ字構造を有し、柱部１５の土台５側とは反対側の端部にヒンジ部１９を有する。ヒンジ部１９は、円柱形状を有し、Ｘ方向に直交する方向に延在する。図３は、照明装置１の主要部１０を別の方向から見たときの分解斜視図である。 Further, the pillar portion 15 is rotatably fixed to the connecting member 25 by using the connecting member 25 and the spring member 37. Specifically, the pillar portion 15 has a substantially T-shaped structure, and has a hinge portion 19 at an end portion of the pillar portion 15 opposite to the base 5 side. The hinge portion 19 has a cylindrical shape and extends in a direction orthogonal to the X direction. FIG. 3 is an exploded perspective view of the main portion 10 of the lighting device 1 when viewed from another direction.

図３に示すように、ばね部材３７は、ヒンジ部１９の外周面における周方向の一部に対応する形状の湾曲面３７ａを有し、連結部材２５も、ヒンジ部１９の外周面における周方向の一部に対応する形状の湾曲面２５ａを有する。また、ばね部材３７は、湾曲面３７ａの周方向の一方側端部に繋がる一方側平坦部３７ｂと、湾曲面３７ａの周方向の他方側端部に繋がる他方側平坦部３７ｃを有し、連結部材２５も、湾曲面２５ａの周方向の一方側端部に繋がる一方側平坦部２５ｂと、湾曲面２５ａの周方向の他方側端部に繋がる他方側平坦部２５ｃを有する。 As shown in FIG. 3, the spring member 37 has a curved surface 37a having a shape corresponding to a part of the peripheral surface of the hinge portion 19 in the circumferential direction, and the connecting member 25 also has a circumferential direction on the outer peripheral surface of the hinge portion 19. It has a curved surface 25a having a shape corresponding to a part of the above. Further, the spring member 37 has a one-side flat portion 37b connected to one side end portion in the circumferential direction of the curved surface 37a and a other-side flat portion 37c connected to the other side end portion in the circumferential direction of the curved surface 37a, and is connected. The member 25 also has a one-sided flat portion 25b connected to one side end in the circumferential direction of the curved surface 25a and a other-side flat portion 25c connected to the other side end in the circumferential direction of the curved surface 25a.

ばね部材３７の湾曲面３７ａと、連結部材２５の湾曲面２５ａとで、円柱状のヒンジ部１９の外周面を略全周に亘って取り囲むように挟持した状態で、ねじ１６ａ,１６ｂを用いて一方側平坦部３７ｂ及び他方側平坦部３７ｃを、一方側平坦部２５ｂ及び他方側平坦部２５ｃに固定する。この固定により、ヒンジ部１９は、ばね部材３７の湾曲面３７ａに対する静止摩擦力によりばね部材３７に対して静止し、ひいては、連結部材２５に対して静止する。 Screws 16a and 16b are used in a state where the curved surface 37a of the spring member 37 and the curved surface 25a of the connecting member 25 are sandwiched so as to surround the outer peripheral surface of the columnar hinge portion 19 over substantially the entire circumference. The one-side flat portion 37b and the other-side flat portion 37c are fixed to the one-side flat portion 25b and the other-side flat portion 25c. By this fixing, the hinge portion 19 is stationary with respect to the spring member 37 due to the static frictional force with respect to the curved surface 37a of the spring member 37, and thus is stationary with respect to the connecting member 25.

上述のように、連結部材２５は、セード３０に一体化されている。このため、人がセード３０に対して力を付与することで、上記静止摩擦力以上の力が、ばね部材３７の湾曲面３７ａにかかると、本体２０がヒンジ部１９に対してヒンジ部１９の周方向に旋回する。このことから、柱部１５に対する本体２０の傾斜角度を調整可能になっている。図４は、照明装置１において本体２０が旋回可能な範囲を説明する図である。図４に示すように、照明装置１を側方から見たときに、セード３０の筒状部３０ａの中心軸Ｃ１は、柱部１５の中心軸Ｃ２に対して、９２度以上旋回可能になっており、例えば、０度から９５度まで旋回可能になっている。 As described above, the connecting member 25 is integrated with the shade 30. Therefore, when a person applies a force to the shade 30 and a force equal to or greater than the static friction force is applied to the curved surface 37a of the spring member 37, the main body 20 of the hinge portion 19 with respect to the hinge portion 19 Turn in the circumferential direction. From this, the inclination angle of the main body 20 with respect to the pillar portion 15 can be adjusted. FIG. 4 is a diagram illustrating a range in which the main body 20 can turn in the lighting device 1. As shown in FIG. 4, when the lighting device 1 is viewed from the side, the central axis C1 of the tubular portion 30a of the shade 30 can rotate 92 degrees or more with respect to the central axis C2 of the pillar portion 15. For example, it is possible to turn from 0 degrees to 95 degrees.

詳述しないが、柱部１５の先端側における連結部材２５の湾曲面２５ａに干渉しない部分に１以上の係止部（例えば、突出部等）を設けてもよい。また、いずれかの係止部に係止することで、本体２０の周方向の一方側の旋回を規制する第１ストッパ（例えば、突出部や、凹部又は貫通孔の内面における旋回方向の一方側壁部等で構成）を、連結部材２５の柱部１５側に設けてもよい。また、いずれかの係止部に係止することで、本体２０の周方向の他方側の旋回を規制する第２ストッパ（例えば、突出部や、凹部又は貫通孔の内面における旋回方向の他方側壁部等で構成）を、連結部材２５の柱部１５側に設けてもよい。このようにして、柱部１５に対する本体２０の旋回角度を規定してもよい。なお、この場合でも、セード３０の筒状部３０ａの中心軸Ｃ１が、柱部１５の中心軸Ｃ２に対して、９２度以上旋回可能にすると好ましい。 Although not described in detail, one or more locking portions (for example, protruding portions) may be provided on the tip end side of the pillar portion 15 so as not to interfere with the curved surface 25a of the connecting member 25. Further, a first stopper (for example, one side wall in the turning direction on the inner surface of the protruding portion, the recess or the through hole) that regulates the turning of the main body 20 on one side in the circumferential direction by locking to any of the locking portions. (Consists of parts and the like) may be provided on the pillar portion 15 side of the connecting member 25. Further, a second stopper (for example, the other side wall in the turning direction on the inner surface of the protruding portion, the recess or the through hole) that regulates the turning of the main body 20 on the other side in the circumferential direction by locking to any of the locking portions. (Consists of parts and the like) may be provided on the pillar portion 15 side of the connecting member 25. In this way, the turning angle of the main body 20 with respect to the pillar portion 15 may be defined. Even in this case, it is preferable that the central axis C1 of the tubular portion 30a of the shade 30 can be swiveled by 92 degrees or more with respect to the central axis C2 of the pillar portion 15.

図５は、照明装置１を図１とは別の方向から見たときの斜視図である。図５に示すように、セード３０は、下側に貫通孔３３を有する。この貫通孔３３は、図示しないドライバでねじ１６ｂ（図３参照）を締め付け可能にするために設けられる。ドライバでねじ１６ｂの締付力を調整することで、ばね部材３７がヒンジ部１９を押圧する力を調整できるようになっており、ひいては、人が本体２０を旋回させるのに要する力を調整できるようになっている。 FIG. 5 is a perspective view of the lighting device 1 when viewed from a direction different from that of FIG. As shown in FIG. 5, the shade 30 has a through hole 33 on the lower side. The through hole 33 is provided so that the screw 16b (see FIG. 3) can be tightened with a screwdriver (not shown). By adjusting the tightening force of the screw 16b with a screwdriver, the force with which the spring member 37 presses the hinge portion 19 can be adjusted, and by extension, the force required for a person to turn the main body 20 can be adjusted. It has become like.

次に、フラットランプ４０の構造について説明する。図２に示すように、フラットランプ４０は、光源モジュール５０、電源装置６０、光反射部材６５、及び光拡散レンズ７０を有する。電源装置６０は、複数の電子部品、例えば、コンデンサやコイル等を有し、商用電源から供給された交流電力を、直流電力に変換すると共に適切な電圧に降圧する。電源装置６０は、円板状の凹部６３を画定するケース６８を有し、ケース６８は、不透明材料で構成され、一体に成形される円板状の底板８７と筒状部８８を含む。 Next, the structure of the flat lamp 40 will be described. As shown in FIG. 2, the flat lamp 40 includes a light source module 50, a power supply device 60, a light reflecting member 65, and a light diffusing lens 70. The power supply device 60 has a plurality of electronic components such as a capacitor and a coil, and converts AC power supplied from a commercial power source into DC power and lowers the voltage to an appropriate voltage. The power supply device 60 has a case 68 that defines a disc-shaped recess 63, and the case 68 includes a disc-shaped bottom plate 87 and a tubular portion 88 that are made of an opaque material and are integrally formed.

光源モジュール５０は、円板状の凹部６３に収容された状態で電源装置６０に固定される。詳しくは、光源モジュール５０は、基板５１と、基板５１に固定された光源５５を有し、基板５１は、底板８７に締結手段等で固定される。基板５１は、平面視が略矩形の平板形状を有する。また、光源５５は、円板状の形状を有し、基板５１の下面（実装面）の略中央に配設される。光源モジュール５０は、例えば、ＣＯＢ（Chip On Board）構造を有し、光源５５は、基板５１に実装された複数のＬＥＤと、複数のＬＥＤを封止する封止部材を含む。複数のＬＥＤは、発光部の一例である。 The light source module 50 is fixed to the power supply device 60 in a state of being housed in the disk-shaped recess 63. Specifically, the light source module 50 has a substrate 51 and a light source 55 fixed to the substrate 51, and the substrate 51 is fixed to the bottom plate 87 by fastening means or the like. The substrate 51 has a flat plate shape having a substantially rectangular plan view. Further, the light source 55 has a disk-like shape and is arranged substantially in the center of the lower surface (mounting surface) of the substrate 51. The light source module 50 has, for example, a COB (Chip On Board) structure, and the light source 55 includes a plurality of LEDs mounted on a substrate 51 and a sealing member for sealing the plurality of LEDs. The plurality of LEDs is an example of a light emitting unit.

基板５１は、例えば、セラミックス基板、樹脂基板、又はメタルベース基板等で構成される。詳述しないが、基板５１には、一対の電極端子と、所定パターンの金属配線が形成される。一対の電極端子は、ＬＥＤを発光させるための直流電力を外部から受電するために設けられる。また、所定パターンの金属配線は、ＬＥＤ同士を電気的に接続するために設けられる。 The substrate 51 is composed of, for example, a ceramic substrate, a resin substrate, a metal base substrate, or the like. Although not described in detail, a pair of electrode terminals and a predetermined pattern of metal wiring are formed on the substrate 51. The pair of electrode terminals are provided to receive DC power for causing the LED to emit light from the outside. Further, the metal wiring of a predetermined pattern is provided to electrically connect the LEDs to each other.

ＬＥＤは、例えば、単色の可視光を発するベアチップで構成され、通電されれば青色光を発する青色ＬＥＤチップで構成される。複数のＬＥＤは、例えば基板５１にマトリクス状に実装される。なお、ＬＥＤは、基板に１つのみ実装されてもよい。封止部材は、例えば、透光性樹脂で構成され、蛍光体を含む。蛍光体は、ＬＥＤからの光を波長変換する役割を果たす。封止部材は、例えば、シリコーン樹脂に蛍光体粒子を分散させた蛍光体含有樹脂で構成される。光源モジュール５０が白色光を出射し、ＬＥＤが青色光を発光する青色ＬＥＤチップである場合、蛍光体粒子は、例えばＹＡＧ系の黄色蛍光体で構成される。 The LED is composed of, for example, a bare chip that emits a single color of visible light, and is composed of a blue LED chip that emits blue light when energized. The plurality of LEDs are mounted on the substrate 51 in a matrix, for example. Only one LED may be mounted on the substrate. The sealing member is made of, for example, a translucent resin and contains a phosphor. The phosphor plays a role in wavelength-converting the light from the LED. The sealing member is composed of, for example, a phosphor-containing resin in which phosphor particles are dispersed in a silicone resin. When the light source module 50 is a blue LED chip that emits white light and the LED emits blue light, the phosphor particles are composed of, for example, a YAG-based yellow phosphor.

なお、封止部材は、全てのＬＥＤを一括封止してもよく、複数のＬＥＤを列ごとにライン状に封止してもよく、各ＬＥＤを１つずつ個別に封止してもよい。また、発光部は、ＬＥＤ以外の発光素子でもよく、半導体レーザ素子や、有機ＥＬ（Electro Luminescence）素子若しくは無機ＥＬ素子等の固体発光素子等でもよい。又は、発光部は、白熱灯や蛍光灯等で構成されてもよい。 As the sealing member, all the LEDs may be sealed at once, a plurality of LEDs may be sealed in a line for each row, or each LED may be individually sealed one by one. .. Further, the light emitting unit may be a light emitting element other than the LED, or may be a semiconductor laser element, a solid light emitting element such as an organic EL (Electro Luminescence) element or an inorganic EL element, or the like. Alternatively, the light emitting unit may be composed of an incandescent lamp, a fluorescent lamp, or the like.

光反射部材６５は、ケース６８の円板状の凹部６３を封鎖するようにケース６８に固定される。光反射部材６５は、環状部材であり、光源５５からの光が通過する貫通孔６５ａを有する。光反射部材６５が、ケース６８に固定された状態で、光源５５は、全周に亘って光反射部材６５に取り囲まれる。光反射部材６５は、更に、反射面６５ｂを有する。反射面６５ｂは、光出射側に行くにしたがって拡径する環状のテーパ形状を有する。光反射部材６５は、光源５５から出射された光の光束の拡径度合を反射面６５ｂで制御することで光を効率的に光拡散レンズ７０に入射させる役割を果たす。 The light reflecting member 65 is fixed to the case 68 so as to block the disc-shaped recess 63 of the case 68. The light reflecting member 65 is an annular member and has a through hole 65a through which light from the light source 55 passes. With the light reflecting member 65 fixed to the case 68, the light source 55 is surrounded by the light reflecting member 65 over the entire circumference. The light reflecting member 65 further has a reflecting surface 65b. The reflecting surface 65b has an annular tapered shape whose diameter increases toward the light emitting side. The light reflecting member 65 plays a role of efficiently incident light on the light diffusing lens 70 by controlling the degree of enlargement of the light flux emitted from the light source 55 by the reflecting surface 65b.

光拡散レンズ７０は、円板形状を有する。光拡散レンズ７０は、反射面６５ｂの光出射側の開口を塞ぐように光反射部材６５に固定される。光拡散レンズ７０は、光を拡散する性質を有する材質、例えば、乳白色のポリカーボネート等で構成される。光拡散レンズ７０は、光反射部材６５から投光された光を拡散整形して、照明ムラを解消し、出射光を均質度が高い光にする。 The light diffusing lens 70 has a disk shape. The light diffusing lens 70 is fixed to the light reflecting member 65 so as to close the opening on the light emitting side of the reflecting surface 65b. The light diffusing lens 70 is made of a material having a property of diffusing light, for example, milky white polycarbonate or the like. The light diffusing lens 70 diffuses and shapes the light projected from the light reflecting member 65 to eliminate uneven illumination and make the emitted light highly homogeneous.

図６は、フラットランプ４０を光出射側から見たときの斜視図であり、図７は、フラットランプ４０を、反光出射側から見たときの斜視図である。図６に示すように、フラットランプ４０は、反光出射側から見たとき、略円板形状を有し、光拡散レンズ７０は、略円形の光出射端面７１を有する。また、フラットランプ４０は、円筒外周面４０ａを有し、円筒外周面４０ａの外径が、フラットランプ４０の最大外径になっている。フラットランプ４０は、その光拡散レンズ７０において外部に露出している箇所、すなわち、光拡散レンズ７０の光出射端面７１及び光拡散レンズ７０の光出射外周面７２から光を出射する。光出射端面７１及び光出射外周面７２は、光出射部８０を構成する。 FIG. 6 is a perspective view of the flat lamp 40 when viewed from the light emitting side, and FIG. 7 is a perspective view of the flat lamp 40 when viewed from the anti-light emitting side. As shown in FIG. 6, the flat lamp 40 has a substantially disk shape when viewed from the anti-light emitting side, and the light diffusing lens 70 has a substantially circular light emitting end face 71. Further, the flat lamp 40 has a cylindrical outer peripheral surface 40a, and the outer diameter of the cylindrical outer peripheral surface 40a is the maximum outer diameter of the flat lamp 40. The flat lamp 40 emits light from a portion of the light diffusing lens 70 that is exposed to the outside, that is, a light emitting end surface 71 of the light diffusing lens 70 and a light emitting outer peripheral surface 72 of the light diffusing lens 70. The light emitting end surface 71 and the light emitting outer peripheral surface 72 form a light emitting portion 80.

図７に示すように、電源装置６０のケース６８は、大径円筒外周面６１と、小径円筒外周面６２を有する。小径円筒外周面６２は、径方向と周方向を含む平面に広がる環状の端面部６７を介して大径円筒外周面６１に繋がり、大径円筒外周面６１よりも反光出射側に位置する。電源装置６０は、端面部６７に設けられた貫通孔６７ａ,６７ｂを通過して外部に突出する端子６４ａ,６４ｂを有する。また、小径円筒外周面６２には、径方向外方から見たときの平面視において略Ｌ字形状を有する1以上の取付溝６９が設けられ、好ましくは、図７に示すように、周方向に互いに間隔をおいて複数の取付溝６９が設けられる。取付溝６９は、光出射方向に延在して、光出射方向の反光出射側に開口する着脱溝６９ａと、着脱溝６９ａの光出射側の端部から周方向一方側に周方向に延在する係止溝６９ｂを有する。 As shown in FIG. 7, the case 68 of the power supply device 60 has a large-diameter cylindrical outer peripheral surface 61 and a small-diameter cylindrical outer peripheral surface 62. The small-diameter cylinder outer peripheral surface 62 is connected to the large-diameter cylinder outer peripheral surface 61 via an annular end surface portion 67 extending in a plane including the radial direction and the circumferential direction, and is located on the anti-light emitting side with respect to the large-diameter cylinder outer peripheral surface 61. The power supply device 60 has terminals 64a, 64b that pass through the through holes 67a, 67b provided in the end face portion 67 and project to the outside. Further, the outer peripheral surface 62 of the small-diameter cylinder is provided with one or more mounting grooves 69 having a substantially L-shape in a plan view when viewed from the outside in the radial direction, and preferably, as shown in FIG. 7, in the circumferential direction. A plurality of mounting grooves 69 are provided at intervals from each other. The mounting groove 69 extends in the light emitting direction and extends in the circumferential direction from the attachment / detachment groove 69a that opens to the anti-light emitting side in the light emitting direction and the end portion of the attachment / detachment groove 69a on the light emitting side in the circumferential direction. It has a locking groove 69b to be used.

図８は、セード３０及びフラットランプ４０を取り外した状態の照明装置１を示す斜視図である。図８に示すように、本体２０は、筒状部２９を有し、筒状部２９の端面２９ａから光出射側に突出する端子５７ａ,５７ｂを含む。また、本体２０は、筒状部２９の内周面２９ｂから径方向内方に突出する１以上の係止部２３を有し、好ましくは、図８に示すように、周方向に互いに間隔をおいて複数の係止部２３を有する。係止部２３の周方向の寸法は、着脱溝６９ａの周方向の寸法より僅かに小さくなっており、係止部２３の光出射方向の寸法は、係止溝６９ｂの光出射方向の寸法より僅かに小さくなっている。 FIG. 8 is a perspective view showing the lighting device 1 in a state where the shade 30 and the flat lamp 40 are removed. As shown in FIG. 8, the main body 20 has a tubular portion 29, and includes terminals 57a and 57b protruding from the end surface 29a of the tubular portion 29 to the light emitting side. Further, the main body 20 has one or more locking portions 23 protruding inward in the radial direction from the inner peripheral surface 29b of the tubular portion 29, and preferably, as shown in FIG. 8, the main body 20 is spaced apart from each other in the circumferential direction. It has a plurality of locking portions 23. The circumferential dimension of the locking portion 23 is slightly smaller than the circumferential dimension of the attachment / detachment groove 69a, and the light emitting direction dimension of the locking portion 23 is smaller than the light emitting direction dimension of the locking groove 69b. It is slightly smaller.

ランプ取り付け部３５は、図示しないバネ等の付勢部材により、フラットランプ４０に電力供給が可能なように固定する。詳細には、バネは径方向に伸縮可能で、フラットランプ４０の端子６４ａおよび６４ｂに設けられた溝に係り受けしてフラットランプ４０を固定する。 The lamp mounting portion 35 is fixed to the flat lamp 40 by an urging member such as a spring (not shown) so that electric power can be supplied. Specifically, the spring can be expanded and contracted in the radial direction, and the flat lamp 40 is fixed by engaging with the grooves provided in the terminals 64a and 64b of the flat lamp 40.

フラットランプ４０が、本体２０に取り付けられた状態で、ピン状の接触部５８ａ,５８ｂが端子６４ａ,６４ｂの円形の端面の中心に位置する。また、その状態で、接触部５８ａ,５８ｂ及び端子６４ａ,６４ｂのうちの少なくとも一方が付勢部材で他方に押圧された状態になる。よって、接触部５８ａ,５８ｂを端子６４ａ,６４ｂに確実に電気的に接続でき、商用電源からの電力が電源装置６０に確実に供給される。 With the flat lamp 40 attached to the main body 20, the pin-shaped contact portions 58a and 58b are located at the center of the circular end faces of the terminals 64a and 64b. Further, in that state, at least one of the contact portions 58a and 58b and the terminals 64a and 64b is pressed against the other by the urging member. Therefore, the contact portions 58a and 58b can be reliably electrically connected to the terminals 64a and 64b, and the power from the commercial power source is reliably supplied to the power supply device 60.

図９は、セード３０の筒状部３０ａの中心軸Ｃ１が柱部１５の中心軸Ｃ２に対して略９０度傾斜している状態の照明装置１を、光出射側から見たときの正面図である。図９に示すように、フラットランプ４０が、本体２０の所定の固定位置に適切に固定された状態で、フラットランプ４０の円筒外周面４０ａは、セード３０の内周面３０ｂに対して径方向に間隔をおいて対向している。この径方向の隙間は、如何なる寸法でもよいが、１ｍｍ以上であって、４ｍｍ以下であると好ましい。 FIG. 9 is a front view of the lighting device 1 in a state where the central axis C1 of the tubular portion 30a of the shade 30 is inclined by approximately 90 degrees with respect to the central axis C2 of the pillar portion 15 when viewed from the light emitting side. Is. As shown in FIG. 9, in a state where the flat lamp 40 is appropriately fixed at a predetermined fixed position of the main body 20, the cylindrical outer peripheral surface 40a of the flat lamp 40 is in the radial direction with respect to the inner peripheral surface 30b of the shade 30. Are facing each other at intervals. The radial gap may have any size, but is preferably 1 mm or more and 4 mm or less.

再度、図１を参照して、セード３０は、透明の材質、例えば、乳白色の透明材質で構成される透明筒状部３８と、不透明の材質で構成される不透明筒状部３９を有する。透明筒状部３８は、不透明筒状部３９よりも光出射側に位置している。透明筒状部３８と不透明筒状部３９は、光出射方向の略同じ位置に存在する環状の境界３６を介して繋がっている。セード３０は、樹脂材料で構成されると好ましく、透明筒状部３８と不透明筒状部３９は、二色成形で一体に形成されると好ましい。また、不透明筒状部３９は、光が透過できない不透明材質で構成されてもよく、光の一部が透過する不透明材質で構成されてもよい。 Again, referring to FIG. 1, the shade 30 has a transparent tubular portion 38 made of a transparent material, for example, a milky white transparent material, and an opaque tubular portion 39 made of an opaque material. The transparent tubular portion 38 is located on the light emitting side with respect to the opaque tubular portion 39. The transparent tubular portion 38 and the opaque tubular portion 39 are connected to each other via an annular boundary 36 existing at substantially the same position in the light emitting direction. The shade 30 is preferably made of a resin material, and the transparent tubular portion 38 and the opaque tubular portion 39 are preferably integrally formed by two-color molding. Further, the opaque tubular portion 39 may be made of an opaque material that does not allow light to pass through, or may be made of an opaque material that allows a part of light to pass through.

フラットランプ４０が本体２０の所定の固定位置に適切に固定された状態で、光出射方向に関して、光出射部８０において最も光出射側とは反対側に位置する反出射側位置４５（図６参照）が、光出射方向に関して境界３６（図１参照）を中心として±２ｍｍの範囲に位置していると好ましい。また、フラットランプ４０が、本体２０の所定の固定位置に適切に固定された状態で、セード３０において最も光出射側に位置する箇所と、光出射部８０において最も光出射側に位置する箇所との光出射方向の距離は、如何なる長さでもよい。 With the flat lamp 40 properly fixed at a predetermined fixed position of the main body 20, the counter-emission side position 45 (see FIG. 6), which is located on the side opposite to the light-emission side in the light-emission unit 80 in the light-emission direction ) Is preferably located within a range of ± 2 mm about the boundary 36 (see FIG. 1) with respect to the light emission direction. Further, in a state where the flat lamp 40 is appropriately fixed at a predetermined fixed position of the main body 20, a portion located on the light emitting side most in the shade 30 and a portion located on the light emitting side most in the light emitting portion 80. The distance in the light emitting direction of is of any length.

以上、照明装置１は、入力電力を変換して出力電力を生成する電源装置６０、及び発光部からの光を出射すると共に光出射端面７１が略円形である光出射部を有し、光出射端面７１の直径が高さ方向の寸法よりも長いフラットランプ４０を備える。また、照明装置１は、フラットランプ４０の側面を全周に亘って覆うようにフラットランプ４０を内部に収容し、フラットランプ４０の光出射側が開口するセード３０を備える。また、セード３０は、少なくとも光出射方向の開口側に透明筒状部３８を有する。 As described above, the lighting device 1 has a power supply device 60 that converts input power to generate output power, and a light emitting unit that emits light from the light emitting unit and has a light emitting end face 71 that is substantially circular. A flat lamp 40 having an end face 71 having a diameter longer than the height dimension is provided. Further, the lighting device 1 includes a shade 30 in which the flat lamp 40 is housed so as to cover the side surface of the flat lamp 40 over the entire circumference, and the light emitting side of the flat lamp 40 is opened. Further, the shade 30 has a transparent tubular portion 38 at least on the opening side in the light emitting direction.

本開示によれば、照明装置１が、光出射端面７１が略円形である光出射部８０を有する。したがって、光出射部８０から出射する光を光出射端面７１の法線方向（光出射方向）に制御し易くなる。更には、フラットランプ４０がセード３０の内部に収容され、セード３０が、フラットランプ４０の側面全てを覆っている。よって、セード３０によって光出射部８０から径方向に進行する光を抑制でき、光出射部８０から径方向に進行した光で輝度むらや輝線が生じることを抑制できる。よって、照射光が、綺麗で薄くしい光になり易い。更には径方向に進行する光を抑えられるため、より狭角な制御を実現しやすくなる。 According to the present disclosure, the lighting device 1 has a light emitting portion 80 having a light emitting end face 71 having a substantially circular shape. Therefore, it becomes easy to control the light emitted from the light emitting unit 80 in the normal direction (light emitting direction) of the light emitting end face 71. Further, the flat lamp 40 is housed inside the shade 30, and the shade 30 covers all the side surfaces of the flat lamp 40. Therefore, the shade 30 can suppress the light traveling in the radial direction from the light emitting unit 80, and can suppress the occurrence of luminance unevenness and bright lines due to the light traveling in the radial direction from the light emitting unit 80. Therefore, the irradiation light tends to be a clean and faint light. Furthermore, since the light traveling in the radial direction can be suppressed, it becomes easier to realize narrower angle control.

また、セード３０が、透明筒状部３８よりも光出射方向の開口側とは反対側に位置して不透明の材料で構成される不透明筒状部３９を有してもよい。また、透明筒状部３８と不透明筒状部３９とが光出射方向の略同じ位置に存在する環状の境界３６を介して繋がっていてもよい。そして、光出射方向に関して光出射部８０において最も光出射側とは反対側に位置する反出射側位置４５が、光出射方向に関して境界３６を中心として±２ｍｍの範囲に位置してもよい。 Further, the shade 30 may have an opaque tubular portion 39 made of an opaque material located on the side opposite to the opening side in the light emitting direction with respect to the transparent tubular portion 38. Further, the transparent tubular portion 38 and the opaque tubular portion 39 may be connected via an annular boundary 36 existing at substantially the same position in the light emitting direction. Then, the counter-emission side position 45, which is located on the side opposite to the light emission side in the light emission unit 80 in the light emission direction, may be located in a range of ± 2 mm about the boundary 36 in the light emission direction.

本願発明者は、次の現象を見出した。詳しくは、図１０を参照して、反出射側位置４５と境界３６との距離ａが２ｍｍより大きくて、更に、反出射側位置４５が境界３６よりも光出射側に位置する場合、図１０に示すように、電源装置６０における不透明材質で構成されたケース６８の影８４が、セード３０の透明筒状部３８に生じ易くて、明るい箇所８５と暗い箇所８６も生じ易く、発光ムラが発生し易かった。他方、図示しないが、反出射側位置４５と境界３６との距離ａが２ｍｍより大きくて、更に、反出射側位置４５が境界３６よりも反光出射側に位置する場合、発光ムラは抑制できるが、光取り出し効率が低くなり易かった。 The inventor of the present application has found the following phenomenon. For details, refer to FIG. 10, when the distance a between the counter-emission side position 45 and the boundary 36 is larger than 2 mm, and the counter-emission side position 45 is located on the light emission side of the boundary 36, FIG. As shown in the above, the shadow 84 of the case 68 made of the opaque material in the power supply device 60 is likely to occur in the transparent tubular portion 38 of the shade 30, and the bright portion 85 and the dark portion 86 are likely to occur, causing uneven light emission. It was easy. On the other hand, although not shown, when the distance a between the reflection side position 45 and the boundary 36 is larger than 2 mm and the reflection side position 45 is located on the reflection side of the boundary 36, uneven light emission can be suppressed. , The light extraction efficiency was easy to decrease.

これに対し、本構成のように、反出射側位置４５が、光出射方向に関して境界３６を中心として±２ｍｍの範囲に位置すると、発光ムラを抑制できるだけでなく、光取り出し効率も高くできた。なお、反出射側位置４５が、光出射方向に関して境界３６を中心として±１.５ｍｍの範囲に位置すると、発光ムラを更に抑制できると共に、光取り出し効率を更に高くでき、より好ましい。また、反出射側位置４５が、光出射方向に関して境界３６を中心として±１.０ｍｍの範囲に位置すると、発光ムラを略防止できると共に、光取り出し効率を最も高くでき、最も好ましい。 On the other hand, when the counter-emission side position 45 is located within a range of ± 2 mm about the boundary 36 with respect to the light emission direction as in this configuration, not only the light emission unevenness can be suppressed but also the light extraction efficiency can be improved. When the counter-emission side position 45 is located within a range of ± 1.5 mm about the boundary 36 with respect to the light emission direction, it is more preferable that the light emission unevenness can be further suppressed and the light extraction efficiency can be further increased. Further, when the counter-emission side position 45 is located within a range of ± 1.0 mm about the boundary 36 with respect to the light emission direction, uneven light emission can be substantially prevented and the light extraction efficiency can be maximized, which is most preferable.

また、照明装置１は、固定面に載置又は固定する土台５と、土台５からＸ方向（土台５の厚さ方向）に延在する柱部１５と、を備えてもよい。また、セード３０は、柱部１５の先端側に直接又は接続部（連結部材２５及びばね部材３７等）を介して間接的に固定されてもよい。また、セード３０が、筒状部３０ａを有し、筒状部３０ａの中心軸Ｃ１が、その中心軸上に位置する回転中心Ｐ（図４参照）に対して旋回可能になっていて、中心軸Ｃ１が回転中心Ｐを中心としてＸ方向に略一致する方向から９２度以上旋回可能でもよい。 Further, the lighting device 1 may include a base 5 that is placed or fixed on a fixed surface, and a pillar portion 15 that extends from the base 5 in the X direction (thickness direction of the base 5). Further, the shade 30 may be fixed directly to the tip end side of the pillar portion 15 or indirectly via a connecting portion (connecting member 25, spring member 37, etc.). Further, the shade 30 has a tubular portion 30a, and the central axis C1 of the tubular portion 30a is rotatable with respect to a rotation center P (see FIG. 4) located on the central axis thereof. The axis C1 may be able to turn 92 degrees or more from a direction that substantially coincides with the X direction with the rotation center P as the center.

本開示の照明装置１とは構成が異なり、電源装置６０が光出射部８０と統合されていない照明装置では、電源装置が土台の周辺に設置されていることが多い。しがって、傾斜角度を９０度以上とすると、照射光を電源装置に照射可能になるため、電源装置の熱劣化等を招く虞があり、傾斜角度を９０度以上とする構成は、採用されることがなかった。しかし、本開示の照明装置１では、電源装置６０が光出射部８０と統合されているので、そのような構成を採用しても、電源装置６０が熱劣化することがない。 In a lighting device having a configuration different from that of the lighting device 1 of the present disclosure and in which the power supply device 60 is not integrated with the light emitting unit 80, the power supply device is often installed around the base. Therefore, if the tilt angle is 90 degrees or more, the power supply device can be irradiated with the irradiation light, which may cause thermal deterioration of the power supply device. Therefore, a configuration in which the tilt angle is 90 degrees or more is adopted. It was never done. However, in the lighting device 1 of the present disclosure, since the power supply device 60 is integrated with the light emitting unit 80, the power supply device 60 does not undergo thermal deterioration even if such a configuration is adopted.

更には、本構成によれば、中心軸Ｃ１が回転中心Ｐを中心としてＸ方向に略一致する方向から９２度以上旋回可能であるので、土台５を水平面に設置したとしても、図４に示すように、セード３０の筒状部３０ａの中心軸Ｃ１を、光出射側に行くにしたがって水平面に対して下側に傾斜させることができる。したがって、フラットランプ４０を周方向に回転させて、係止部２３（図８参照）の周方向位置を着脱溝６９ａ（図７参照）の周方向位置に一致させるだけで、フラットランプ４０の自重で係止部２３を取付溝６９から着脱溝６９ａを介して容易に離脱させることができ、フラットランプ４０をその自重でセード３０から自動的に取り外すことができる。よって、土台５を水平面に設置することができるので、筒状部３０ａの中心軸Ｃ１を柱部１５の中心軸Ｃ２に一致させた状態で、照明装置１から照射光を上方に照射でき、照明装置１を、アッパーライトとして建物の上側等を照射する間接照明等の用途で使用することができる。その結果、照明装置１の使用用途の自由度を各段に高くできる。 Further, according to this configuration, since the central axis C1 can be swiveled by 92 degrees or more from a direction substantially matching the X direction with the rotation center P as the center, even if the base 5 is installed on a horizontal plane, it is shown in FIG. As described above, the central axis C1 of the tubular portion 30a of the shade 30 can be inclined downward with respect to the horizontal plane toward the light emitting side. Therefore, the flat lamp 40 is simply rotated in the circumferential direction to match the circumferential position of the locking portion 23 (see FIG. 8) with the circumferential position of the attachment / detachment groove 69a (see FIG. 7), and the weight of the flat lamp 40 itself. The locking portion 23 can be easily disengaged from the mounting groove 69 via the attachment / detachment groove 69a, and the flat lamp 40 can be automatically removed from the shade 30 by its own weight. Therefore, since the base 5 can be installed on a horizontal surface, the irradiation light can be irradiated upward from the illuminating device 1 in a state where the central axis C1 of the tubular portion 30a is aligned with the central axis C2 of the pillar portion 15 to illuminate. The device 1 can be used as an upper light for applications such as indirect lighting that illuminates the upper side of a building or the like. As a result, the degree of freedom in the usage of the lighting device 1 can be further increased.

また、筒状部３０ａの内周面とフラットランプ４０の側面との径方向の最小の隙間が、１ｍｍ以上であって、４ｍｍ以下でもよい。 Further, the minimum radial gap between the inner peripheral surface of the tubular portion 30a and the side surface of the flat lamp 40 may be 1 mm or more and 4 mm or less.

筒状部３０ａの内周面とフラットランプ４０の側面との径方向の最小の隙間が１ｍｍ未満であると、フラットランプ４０が筒状部３０ａに干渉し易くなって、フラットランプ４０での自重での取り外しを円滑に実行しにくくなる。他方、筒状部３０ａの内周面とフラットランプ４０の側面との径方向の最小の隙間が４ｍｍより大きくなると、セード３０の筒状部３０ａの内周面に対する反射角度が大きくなって、狭角制御の精度が低下し易い。 If the minimum radial gap between the inner peripheral surface of the tubular portion 30a and the side surface of the flat lamp 40 is less than 1 mm, the flat lamp 40 easily interferes with the tubular portion 30a, and the weight of the flat lamp 40 itself. It becomes difficult to carry out the removal smoothly. On the other hand, when the minimum radial gap between the inner peripheral surface of the tubular portion 30a and the side surface of the flat lamp 40 is larger than 4 mm, the reflection angle of the shade 30 with respect to the inner peripheral surface of the tubular portion 30a becomes large and narrow. The accuracy of angle control tends to decrease.

これに対して、本構成によれば、筒状部３０ａの内周面とフラットランプ４０の側面との径方向の最小の隙間が、１ｍｍ以上であって、４ｍｍ以下であるので、フラットランプ４０での自重での取り外しを円滑に実行でき、優れた狭角制御も実現し易い。 On the other hand, according to this configuration, the minimum radial gap between the inner peripheral surface of the tubular portion 30a and the side surface of the flat lamp 40 is 1 mm or more and 4 mm or less, so that the flat lamp 40 It can be removed smoothly by its own weight, and it is easy to realize excellent narrow angle control.

更には、本構成のように、筒状部３０ａの内周面とフラットランプ４０の側面との径方向の最小の隙間が、４ｍｍ以下であると、フラットランプ４０と筒状部３０ａの内周面との間に人の指を挿入できなくなる。したがって、土台５を水平面に設置した場合、中心軸Ｃ１が回転中心を中心としてＸ方向に略一致する方向から９２度以上旋回可能でないと、フラットランプ４０を本体２０から取り出すことが不可能になる。よって、中心軸Ｃ１が回転中心を中心としてＸ方向に略一致する方向から９２度以上旋回可能であるという構成の作用効果を顕著で格別なものにできる。 Further, as in this configuration, when the minimum radial gap between the inner peripheral surface of the tubular portion 30a and the side surface of the flat lamp 40 is 4 mm or less, the inner circumference of the flat lamp 40 and the tubular portion 30a It becomes impossible to insert a human finger between the face. Therefore, when the base 5 is installed on a horizontal surface, the flat lamp 40 cannot be taken out from the main body 20 unless the central axis C1 can be swiveled by 92 degrees or more from a direction substantially matching the X direction with the center of rotation as the center. .. Therefore, the effect of the configuration in which the central axis C1 can be swiveled by 92 degrees or more from the direction substantially coincident with the X direction about the center of rotation can be made remarkable and exceptional.

なお、第１実施形態では、フラットランプ４０が、光拡散レンズ７０を備える場合について説明した。しかし、フラットランプが、光拡散レンズ７０の代わりに集光レンズを備えるようにしてもよい。また、光出射部８０が、光出射端面７１と、光出射外周面７２とで構成される場合について説明したが、光出射部が、光出射端面のみで構成され、光出射外周面を有さなくてもよい。 In the first embodiment, the case where the flat lamp 40 includes the light diffusing lens 70 has been described. However, the flat lamp may include a condenser lens instead of the light diffusing lens 70. Further, the case where the light emitting portion 80 is composed of the light emitting end surface 71 and the light emitting outer peripheral surface 72 has been described, but the light emitting portion is composed of only the light emitting end surface and has the light emitting outer peripheral surface. It does not have to be.

（第２実施形態）
第１実施形態では、ドライバでねじ１６ｂ（図３参照）の締付力を調整することで、ばね部材３７がヒンジ部１９を押圧する力を調整する場合について説明した。しかし、この場合、締付力の変動によりねじ１６ｂの位置も変動し、締付力を大きくした場合、ねじ１６ｂがドライバの挿通孔の奥深くに移動し、人がねじ１６ｂの位置を確認しにくくなり、人がねじ１６ｂを回しにくい。第２実施形態では、そのような問題点がなく、締付力を変動させるねじの締め込みの調整を容易に実行でき、操作性を格段に向上できる照明装置１０１について説明する。 (Second Embodiment)
In the first embodiment, a case where the force of the spring member 37 pressing the hinge portion 19 is adjusted by adjusting the tightening force of the screw 16b (see FIG. 3) with a screwdriver has been described. However, in this case, the position of the screw 16b also fluctuates due to the fluctuation of the tightening force, and when the tightening force is increased, the screw 16b moves deep into the insertion hole of the driver, making it difficult for a person to confirm the position of the screw 16b. Therefore, it is difficult for a person to turn the screw 16b. In the second embodiment, the lighting device 101 which does not have such a problem, can easily adjust the tightening of the screw which fluctuates the tightening force, and can remarkably improve the operability will be described.

図１１は、第２実施形態の照明装置１０１の斜視図であり、図１２は、照明装置１０１の取付板以外の部分を示す斜視図である。図１１及び図１２に示すように、第２実施形態でも、照明装置１０１は、スポットライトであり、柱部１５の中心軸に対するセード１３０の筒状部１３０ａの中心軸の傾斜角度を調整できるようになっている。 FIG. 11 is a perspective view of the lighting device 101 of the second embodiment, and FIG. 12 is a perspective view showing a portion of the lighting device 101 other than the mounting plate. As shown in FIGS. 11 and 12, also in the second embodiment, the lighting device 101 is a spotlight, and the inclination angle of the central axis of the tubular portion 130a of the shade 130 with respect to the central axis of the pillar portion 15 can be adjusted. It has become.

図１３は、照明装置１０１においてセード１３０の図示を省略したときの斜視図であり、図１４は、照明装置１０１の連結部材１２５の斜視図である。図１３に示すように、照明装置１０１の連結部材１２５は、平板部１２６と、筒状部１２７を有し、平板部１２６は、筒状部１２７の反光出射側の端面１２７ａからその法線方向（光出射方向）の反光出射側に延在している。 FIG. 13 is a perspective view of the lighting device 101 when the shade 130 is not shown, and FIG. 14 is a perspective view of the connecting member 125 of the lighting device 101. As shown in FIG. 13, the connecting member 125 of the lighting device 101 has a flat plate portion 126 and a tubular portion 127, and the flat plate portion 126 is in the normal direction from the end surface 127a on the anti-light emitting side of the tubular portion 127. It extends to the anti-light emitting side in the (light emitting direction).

照明装置１０１では、ばね部材１３７がＸ方向の土台５側とは反対側に凹の湾曲面１３７ａ,１３７ｂを有し、図１４に示すように、平板部１２６が、Ｘ方向の土台５側に凹の湾曲面１２６ａ,１２６ｂを有する。柱部１５の円柱形状のヒンジ部１９を、湾曲面１３７ａ,１３７ｂと、湾曲面１２６ａ,１２６ｂとでＸ方向に挟持した状態で、ばね部材１３７における湾曲面１３７ａ,１３７ｂの周方向一方側に位置する平板部１３７ｃ,１３７ｄを、ねじ１３９で平板部１２６におけるＸ方向の土台５側とは反対側の端面に固定することで、平板部１２６をヒンジ部１９に対して旋回可能にしている。 In the lighting device 101, the spring member 137 has concave curved surfaces 137a and 137b on the side opposite to the base 5 side in the X direction, and as shown in FIG. 14, the flat plate portion 126 is on the base 5 side in the X direction. It has concave curved surfaces 126a and 126b. The columnar hinge portion 19 of the pillar portion 15 is sandwiched between the curved surfaces 137a and 137b and the curved surfaces 126a and 126b in the X direction, and is located on one side of the curved surfaces 137a and 137b of the spring member 137 in the circumferential direction. By fixing the flat plate portions 137c and 137d to the end surface of the flat plate portion 126 on the side opposite to the base 5 side in the X direction with screws 139, the flat plate portion 126 can be swiveled with respect to the hinge portion 19.

図１３に示すように、連結部材１２５は、筒状部１２７の端面１２７ａから略光出射方向の反光出射側に延在する二つの平板状のナット挟持部１７７ａ,１７７ｂを有する。各ナット挟持部１７７ａ,１７７ｂは、略平板部１２６の厚さ方向に延在している。二つの平板状のナット挟持部１７７ａ,１７７ｂの間には、ナット１５５がその軸方向に移動可能で周方向に回転不可能に挟持されている。連結部材１２５は、ガイド部材の一例であり、ナット挟持部１７７ａ,１７７ｂは、ガイド部の一例である。 As shown in FIG. 13, the connecting member 125 has two flat plate-shaped nut holding portions 177a and 177b extending from the end surface 127a of the tubular portion 127 to the counterlight emitting side in the substantially light emitting direction. The nut holding portions 177a and 177b extend in the thickness direction of the substantially flat plate portion 126. A nut 155 is sandwiched between two flat plate-shaped nut sandwiching portions 177a and 177b so as to be movable in the axial direction and non-rotatable in the circumferential direction. The connecting member 125 is an example of a guide member, and the nut holding portions 177a and 177b are examples of a guide portion.

ナット１５５のＸ方向の土台５側の端面１５５ａは、ばね部材１３７の湾曲面１３７ａ,１３７ｂの周方向他方側に位置する平板部１３７ｅをＸ方向の土台５側に歪ませるように付勢している。図１５は、照明装置１０１におけるばね部材１３７によるヒンジ部１９の締付力を調整する機構を説明する照明装置１０１の一部の斜視図である。 The end surface 155a of the nut 155 on the base 5 side in the X direction urges the flat plate portion 137e located on the other side of the curved surfaces 137a and 137b of the spring member 137 in the circumferential direction so as to distort the base 5 side in the X direction. There is. FIG. 15 is a perspective view of a part of the lighting device 101 for explaining a mechanism for adjusting the tightening force of the hinge portion 19 by the spring member 137 in the lighting device 101.

図１５に示すように、照明装置１０１は、ドライバを係止する係止部を有する頭部１９５ａが外部に露出しているねじ１９５を有し、このねじ１９５は、セード１３０に対して回転以外の相対移動が略できない状態になっている。また、このねじ１９５の軸部の雄ねじは、平板部１３７ｅに設けられた貫通孔を通過してナット１５５の雌ねじに螺合している。 As shown in FIG. 15, the lighting device 101 has a screw 195 in which the head 195a having a locking portion for locking the driver is exposed to the outside, and the screw 195 is not rotated with respect to the shade 130. Relative movement of is in a state where it cannot be abbreviated. Further, the male screw of the shaft portion of the screw 195 passes through the through hole provided in the flat plate portion 137e and is screwed into the female screw of the nut 155.

その結果、ねじ１９５を回転させると、ねじ１９５がセード１３０に対して回転以外の相対移動が略できない状態になっているため、ナット１５５がその軸方向に移動し、ナット１５５がばね部材１３７の平板部１３７ｅを押圧する力を変えることができるようになっている。このため、例えば、図１６に示すように、図１３に対するナット１５５の位置との比較でナット１５５がナット挟持部１７７ａ,１７７ｂにおける土台５側で挟持された状態にすると、ばね部材１３７がヒンジ部１９を締め付ける力を大きくでき、人がセード１３０を旋回させるのに要する力が大きくなるように調整できるようになっている。また、逆に、図１３に対するナット１５５の位置との比較でナット１５５がナット挟持部１７７ａ,１７７ｂにおける土台５側とは反対側で挟持された状態にすると、ばね部材１３７がヒンジ部１９を締め付ける力を小さくでき、人がセード１３０を旋回させるのに要する力が小さくなるように調整できるようになっている。 As a result, when the screw 195 is rotated, the screw 195 is in a state in which relative movement other than rotation cannot be performed with respect to the shade 130. Therefore, the nut 155 moves in the axial direction thereof, and the nut 155 moves the spring member 137. The force for pressing the flat plate portion 137e can be changed. Therefore, for example, as shown in FIG. 16, when the nut 155 is sandwiched by the base 5 side of the nut sandwiching portions 177a and 177b in comparison with the position of the nut 155 with respect to FIG. 13, the spring member 137 is hinged. The force for tightening the 19 can be increased, and the force required for a person to turn the shade 130 can be adjusted to be large. On the contrary, when the nut 155 is sandwiched between the nut sandwiching portions 177a and 177b on the side opposite to the base 5 side in comparison with the position of the nut 155 with respect to FIG. 13, the spring member 137 tightens the hinge portion 19. The force can be reduced and adjusted so that the force required for a person to turn the shade 130 is reduced.

以上、照明装置１０１は、セード１３０内に配置されるナット１５５と、ナット１５５をそのナット１５５が軸方向に移動可能で周方向に回転不可能にガイドするナット挟持部（ガイド部）１７７ａ,１７７ｂを有すると共に、セード１３０に対して静止する連結部材（ガイド部材）１２５を備える。また、照明装置１０１は、ナット１５５に螺合していると共に、頭部１９５ａの端面が外部に露出しているねじ１９５と、セード１３０内に配置され、ナット１５５を頭部１９５ａ側とは反対側に付勢するばね部材１３７を備える。そして、ナット１５５がばね部材１３７を押圧する押圧力によってセード１３０の旋回を可能にするヒンジ部１９を押圧するばね部材１３７の付勢力を調整するようになっている。 As described above, the lighting device 101 guides the nut 155 arranged in the shade 130 and the nut holding portions (guide portions) 177a, 177b for guiding the nut 155 so that the nut 155 can move in the axial direction and cannot rotate in the circumferential direction. And also includes a connecting member (guide member) 125 that is stationary with respect to the shade 130. Further, the lighting device 101 is screwed into the nut 155 and is arranged in the shade 130 with the screw 195 whose end face of the head 195a is exposed to the outside, and the nut 155 is opposite to the head 195a side. A spring member 137 for urging the side is provided. Then, the pressing force of the nut 155 pressing the spring member 137 adjusts the urging force of the spring member 137 that presses the hinge portion 19 that enables the shade 130 to rotate.

本構成によれば、ドライバでねじ１９５を旋回させて、人がセード１３０を旋回させるのに要する力と調整しても、ねじ１９５がその軸方向に進退移動することがない。よって、図１１に示すように、人がねじ１９５の位置を常時容易に確認でき、人が締付力を変動させるねじ１９５の締め込みの調整を容易に実行でき、その締め込みの操作性を格段に向上できる。 According to this configuration, even if the screw 195 is swiveled by a screwdriver and adjusted with the force required for a person to swivel the shade 130, the screw 195 does not move forward or backward in the axial direction thereof. Therefore, as shown in FIG. 11, a person can easily confirm the position of the screw 195 at all times, and a person can easily adjust the tightening of the screw 195 that fluctuates the tightening force, and the operability of the tightening can be improved. It can be significantly improved.

１,１０１照明装置、５土台、１５柱部、１９ヒンジ部、３０,１３０セード、３０ａ,１３０ａセードの筒状部、３６境界、３７,１３７ばね部材、３８透明筒状部、３９不透明筒状部、４０フラットランプ、４５反出射側位置、６０電源装置、７１光出射端面、８０光出射部、１５５ａナットの端面、１７７ａナット挟持部、１９５ねじ、１９５ａねじの頭部、Ｃ１セードの筒状部の中心軸、Ｃ２柱部の中心軸、Ｐ回転中心。 1,101 Lighting device, 5 base, 15 pillars, 19 hinges, 30,130 shades, 30a, 130a shade tubulars, 36 boundaries, 37,137 spring members, 38 transparent tubulars, 39 opaque tubulars Part, 40 flat lamp, 45 counter-emission side position, 60 power supply, 71 light emission end face, 80 light emission part, 155a nut end face, 177a nut holding part, 195 screw, 195a screw head, C1 shade tubular Central axis of part, central axis of C2 pillar, P rotation center.

Claims

It has a power supply device that converts input power to generate output power, and a light emitting portion that emits light from a light emitting portion and has a substantially circular light emitting end face, and the diameter of the light emitting end face is in the height direction. Flat lamps longer than the dimensions and
A shade in which the flat lamp is housed so as to cover the side surface of the flat lamp over the entire circumference and the light emitting side of the flat lamp is opened.
With
The shade is a lighting device having a transparent tubular portion made of a transparent material at least on the opening side in the height direction.

It has an opaque tubular portion made of an opaque material located on the side opposite to the opening side in the height direction of the transparent tubular portion.
The opaque tubular portion and the transparent tubular portion are connected via an annular boundary existing at substantially the same position in the height direction.
Claim 1 in which the counter-emission side position of the light emitting portion, which is located on the side opposite to the light emitting side in the height direction, is located in a range of ± 2 mm with respect to the boundary in the height direction. The lighting device described in.

A base that is placed or fixed on a fixed surface,
A pillar portion extending from the base in the thickness direction of the base is provided.
The shade is fixed directly to the tip end side of the pillar portion or indirectly via a connecting portion.
The shade has a tubular portion and has a tubular portion.
The central axis of the tubular portion is rotatable with respect to a rotation center located on the central axis, and is 92 degrees from a direction in which the central axis substantially coincides with the thickness direction about the rotation center. The lighting device according to claim 1 or 2, which is rotatable as described above.

The lighting device according to claim 3, wherein the minimum radial gap between the inner peripheral surface of the tubular portion and the side surface of the flat lamp is 1 mm or more and 4 mm or less.

The nut placed in the shade and
A guide member that has a guide portion that guides the nut so that the nut can move in the axial direction and cannot rotate in the circumferential direction, and also has a guide member that is stationary with respect to the shade.
A screw that is screwed into the nut and whose head end face is exposed to the outside,
A spring member arranged in the shade and urging the nut on the side opposite to the head side.
With
The lighting device according to any one of claims 1 to 4, wherein the pressing force of the nut pressing the spring member adjusts the urging force of the spring member that presses the hinge portion that enables the shade to rotate. ..