JP7020982B2 - Lighting equipment - Google Patents

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JP7020982B2
JP7020982B2 JP2018068677A JP2018068677A JP7020982B2 JP 7020982 B2 JP7020982 B2 JP 7020982B2 JP 2018068677 A JP2018068677 A JP 2018068677A JP 2018068677 A JP2018068677 A JP 2018068677A JP 7020982 B2 JP7020982 B2 JP 7020982B2
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light source
light
end side
translucent
reflecting
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JP2019179681A (en
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剛 今泉
貴稔 北川
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Lixil Corp
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Lixil Corp
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本発明は、照明装置に関する。 The present invention relates to a lighting device.

従来、照明装置の省エネルギー化を実現するため、照明装置の電球として、白熱電球に代わってＬＥＤ電球が普及しつつある。白熱電球は、発光部のフィラメントをガラス製グローブで覆った形状をしており、ＬＥＤ電球は、発光部をＬＥＤに置き換えることで形成される。また、ＬＥＤ電球では、光が点のような狭い領域から光が照射されるので、白熱電球のように拡散した配光特性を得るためには、光を拡散させる構造体を設ける必要がある。 Conventionally, in order to realize energy saving of a lighting device, an LED light bulb is becoming widespread as a light bulb of the lighting device in place of an incandescent light bulb. The incandescent light bulb has a shape in which the filament of the light emitting portion is covered with a glass glove, and the LED light bulb is formed by replacing the light emitting portion with an LED. Further, in an LED light bulb, light is emitted from a narrow region such as a point, so in order to obtain a diffused light distribution characteristic like an incandescent light bulb, it is necessary to provide a structure for diffusing the light.

白熱電球に代替するＬＥＤ電球として、グローブ内に配置される発光部を、細長い基台の上にＬＥＤチップを配置し、ＬＥＤチップの周囲を、波長変換材を含んだ樹脂で覆うことで構成することが提案されている（例えば、特許文献１参照）。 As an LED bulb to replace the incandescent bulb, the light emitting part arranged in the glove is configured by arranging the LED chip on an elongated base and covering the periphery of the LED chip with a resin containing a wavelength conversion material. Has been proposed (see, for example, Patent Document 1).

特開２０１３－０１２５０２号公報Japanese Unexamined Patent Publication No. 2013-012502

電球を、発光部をガラスで覆う二層構造とすると、ガラスの内部に空気層があるので、特に寒暖差の大きい屋外環境においては内部結露が発生やすい。このため、屋外用品で用いることが難しかった。また、ＬＥＤの光を拡散させる構造を含む発光部を、ガラスで覆う二層構造にすると、部品点数が多くなり、生産工程が複雑になる。さらに、ガラス内部のＬＥＤが外側から見える設計の場合には、意匠性が悪くなるという問題があった。 If the light bulb has a two-layer structure in which the light emitting portion is covered with glass, internal dew condensation is likely to occur especially in an outdoor environment where the temperature difference is large because there is an air layer inside the glass. Therefore, it was difficult to use it in outdoor products. Further, if the light emitting portion including the structure for diffusing the light of the LED is covered with glass to have a two-layer structure, the number of parts is increased and the production process is complicated. Further, in the case of the design in which the LED inside the glass can be seen from the outside, there is a problem that the design is deteriorated.

本発明は、白熱電球と類似した配光特性を有し、屋外環境でも使用しやすい照明装置を提供することを目的とする。 An object of the present invention is to provide a lighting device which has light distribution characteristics similar to those of an incandescent light bulb and is easy to use even in an outdoor environment.

本発明は、光源（例えば、後述の光源２）と、前記光源から照射される光を透過し、前記光源側に位置する基端と対向する先端側が先細り形状の無垢ガラスにより形成された中実の透光部（例えば、後述の透光部３）と、前記先端側に形成されて前記基端側に窪む凹部により構成され、前記光源から照射させる光を拡散及び／又は反射させる第１反射部（例えば、後述の第１反射部３１）と、を有する照明装置に関する。 In the present invention, a light source (for example, a light source 2 described later) and a solid glass having a tapered shape at the tip side facing the base end located on the light source side and transmitting light emitted from the light source are formed. A first that is composed of a translucent portion (for example, a translucent portion 3 described later) and a recess formed on the tip side and recessed on the base end side, and diffuses and / or reflects light emitted from the light source. The present invention relates to a lighting device having a light source (for example, a first light source 31 described later).

前記第１反射部は、前記凹部の表面をケシ加工又は塗装加工して形成されることが好ましい。 The first reflective portion is preferably formed by popping or painting the surface of the concave portion.

前記第１反射部は、前記凹部の底部及び前記凹部の外周縁が、縦断面視で湾曲して形成されていることが好ましい。 The first reflective portion is preferably formed so that the bottom portion of the recess and the outer peripheral edge of the recess are curved in a vertical cross-sectional view.

前記透光部の前記基端側の入射部に形成される第２反射部をさらに有することが好ましい。 It is preferable to further have a second reflecting portion formed on the incident portion on the proximal end side of the translucent portion.

本発明によれば、白熱電球と類似した配光特性を有し、屋外環境でも使用しやすい照明装置を提供することができる。 According to the present invention, it is possible to provide a lighting device which has a light distribution characteristic similar to that of an incandescent light bulb and is easy to use even in an outdoor environment.

本実施形態の照明装置を示す正面図である。It is a front view which shows the lighting apparatus of this embodiment. 図１のＡ－Ａ線断面図である。FIG. 3 is a cross-sectional view taken along the line AA of FIG. 本実施形態の透光部の斜視図である。It is a perspective view of the translucent part of this embodiment. 本実施形態の凹部の模式図である。It is a schematic diagram of the recess of this embodiment.

以下、本発明の実施形態について、図面を参照しながら詳細に説明する。
図１は、本実施形態の屋外用の照明装置１を示す正面図である。図２は、図１のＡ－Ａ線断面図である。図１及び図２に示すように、照明装置１は、台座部１００の上にカバー２００が被せられて構成される。また、照明装置１は、台座部１００に設けられる光源２と、ソケット部４を介して台座部１００に取り付けられる透光部３、第１反射部３１及び第２反射部３２とを有する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing the outdoor lighting device 1 of the present embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. As shown in FIGS. 1 and 2, the lighting device 1 is configured by covering the pedestal portion 100 with the cover 200. Further, the lighting device 1 has a light source 2 provided on the pedestal portion 100, a translucent portion 3, a first reflecting portion 31 and a second reflecting portion 32 attached to the pedestal portion 100 via the socket portion 4.

図２に示すように、台座部１００は、基台部１０１と、電源部（図示せず）と、光源収容部１０２と、支持部１０３と、を有する。以下に説明する基台部１０１、光源収容部１０２及び支持部１０３は、径の異なる円柱又は円筒体が、下から上へ順に径が小さくなるように同心で重なって形成されている。 As shown in FIG. 2, the pedestal portion 100 includes a base portion 101, a power supply portion (not shown), a light source accommodating portion 102, and a support portion 103. The base portion 101, the light source accommodating portion 102, and the support portion 103 described below are formed by concentrically overlapping cylinders or cylinders having different diameters so that the diameters decrease in order from bottom to top.

基台部１０１は、内部に空間が形成された高さの低い円柱形のケースであり、基台部１０１の設置面に設置可能な平坦な底面を有する。基台部の外側面には、後述するカバー２００が螺合されるネジが形成される。 The base portion 101 is a low-height cylindrical case having a space formed inside, and has a flat bottom surface that can be installed on the installation surface of the base portion 101. On the outer surface of the base portion, a screw into which the cover 200 described later is screwed is formed.

電源部は、ＬＥＤを点灯させるための駆動電源と後述する光源２に電流を供給する配線を含む。電源部は、基台部１０１内に収容される。 The power supply unit includes a drive power supply for lighting the LED and wiring for supplying a current to the light source 2 described later. The power supply unit is housed in the base unit 101.

光源収容部１０２は、基台部１０１の中央上部から上方に向かって突出するように形成され、内部に空間を有する円柱形状を有する。光源収容部１０２は、内部に光源２が収容され、光源２が収容された空間から上方は開口している。 The light source accommodating portion 102 is formed so as to project upward from the upper center of the base portion 101, and has a cylindrical shape having a space inside. The light source accommodating portion 102 accommodates the light source 2 inside, and is open above the space in which the light source 2 is accommodated.

支持部１０３は、光源収容部１０２の中央上部から上方に向かって突出するように形成される円筒形状の部分である。支持部１０３は、後述する透光部３を支持可能な内径を有する。支持部１０３の中心の空洞は、光源収容部１０２の開口に連通しており、支持部１０３の空洞と光源収容部１０２の開口によって支持凹部１０３ａが形成されている。 The support portion 103 is a cylindrical portion formed so as to project upward from the upper center of the light source accommodating portion 102. The support portion 103 has an inner diameter capable of supporting the translucent portion 3 described later. The central cavity of the support portion 103 communicates with the opening of the light source accommodating portion 102, and the support recess 103a is formed by the cavity of the support portion 103 and the opening of the light source accommodating portion 102.

光源２は、発光ダイオード（ＬＥＤ）２１及びＬＥＤ２１を搭載する基板２２を含む。光源２は、支持部１０３内に配置され、支持凹部１０３ａの中心の直下にＬＥＤ２１が位置する。 The light source 2 includes a light emitting diode (LED) 21 and a substrate 22 on which the LED 21 is mounted. The light source 2 is arranged in the support portion 103, and the LED 21 is located directly below the center of the support recess 103a.

図３は、透光部３の斜視図である。透光部３は、光源２から照射される光を透過する透明で中実の無垢ガラスにより形成される。図３に示すように、透光部は、本体部３０と、第１反射部３１と、取付部３３と、第２反射部３２と、を有する。 FIG. 3 is a perspective view of the translucent portion 3. The translucent portion 3 is formed of transparent and solid solid glass that transmits the light emitted from the light source 2. As shown in FIG. 3, the translucent portion includes a main body portion 30, a first reflecting portion 31, a mounting portion 33, and a second reflecting portion 32.

本体部３０は、光源２側を基端として、基端と対向する位置にある先端側に延びる縦長の形状を有する。本体部３０は、長手方向の中央部が最も拡径し、基端側及び先端側に向かうにしたがって縮径する先細り形状に形成される。本体部３０の先端側は、図２に示すように側面視では平坦になっている。本体部３０は、レンズの役割をして、光源２から照射される光を拡散する。 The main body portion 30 has a vertically long shape extending from the light source 2 side to the tip end side at a position facing the base end. The main body portion 30 is formed in a tapered shape in which the central portion in the longitudinal direction has the largest diameter and the diameter decreases toward the proximal end side and the distal end side. As shown in FIG. 2, the tip end side of the main body 30 is flat when viewed from the side. The main body 30 acts as a lens and diffuses the light emitted from the light source 2.

図４は、第１反射部３１の模式図である。
第１反射部３１は、本体部３０の先端側に形成され、基端側に窪む凹部により構成される。第１反射部３１は、光源２から照射される光を拡散及び／又は反射させる。拡散及び／又は反射とは、具体的には拡散反射か、鏡面反射（全反射）のいずれか又は両方を意味する。 FIG. 4 is a schematic diagram of the first reflection unit 31.
The first reflective portion 31 is formed on the distal end side of the main body portion 30 and is composed of recesses recessed on the proximal end side. The first reflecting unit 31 diffuses and / or reflects the light emitted from the light source 2. Diffuse and / or reflection specifically means either diffuse reflection, specular reflection (total reflection), or both.

第１反射部３１は、平面視略円形で、外周縁から中心に向かって、基端側に最も深く窪んでいる。図４に示すように、第１反射部３１を構成する凹部の底部及び凹部の外周縁は、縦断面視で湾曲して形成されており、第１反射部３１は、すり鉢状のＲを帯びた浅い窪みである。凹部の直径Ｄは、凹部の中心Ｃから外周縁の上端までの高さ方向の寸法Ｈよりも大きい。また、中心Ｃに、中心Ｃから凹部の内周面に接して外周縁側に延ばした仮想線及び外周縁の上端を結ぶ水平線が交差する点Ｐと、この点Ｐと直径方向に対向する点Ｐと、を結んで形成される角度θは、鈍角となっている。 The first reflecting portion 31 has a substantially circular shape in a plan view, and is recessed deepest toward the proximal end side from the outer peripheral edge toward the center. As shown in FIG. 4, the bottom of the recess and the outer peripheral edge of the recess constituting the first reflection portion 31 are formed to be curved in a vertical cross-sectional view, and the first reflection portion 31 has a mortar-shaped R. It is a shallow depression. The diameter D of the recess is larger than the height dimension H from the center C of the recess to the upper end of the outer peripheral edge. Further, a point P at which a virtual line extending from the center C to the inner peripheral surface of the concave portion and extending toward the outer peripheral edge and a horizontal line connecting the upper ends of the outer peripheral edge intersect with the center C and a point P facing this point P in the radial direction. The angle θ formed by connecting and is an obtuse angle.

第１反射部３１は、凹部の表面をケシ加工として、サンドブラスト加工形成され、表面に粗い微小な凹凸を有する。具体的には、第１反射部３１には、サンドブラスト加工がなされ、凹部の表面に研磨剤が吹き付けられて形成される。 The first reflective portion 31 is formed by sandblasting the surface of the concave portion as a poppy process, and has coarse and minute irregularities on the surface. Specifically, the first reflective portion 31 is sandblasted and formed by spraying an abrasive on the surface of the recess.

取付部３３は、本体部３０の基端側に形成され、縮径した本体部３０の下端部よりも大きな外径を有する円柱体の形状を有する。取付部３３は、本体部３０と一体の無垢ガラスにより構成され、平坦な下端面を有する。取付部３３は、後述するソケット部４に挿入され、ソケット部４とともに台座部１００の支持凹部１０３ａ内に挿入される。取付部３３は、支持部１０３の円筒状の側壁により支持されて、透光部３を台座部１００に取り付ける部分である。また取付部３３の下端面は、支持部１０３に取り付けられた状態で光源２から光を受ける光の入射部となる。 The mounting portion 33 has the shape of a cylindrical body formed on the base end side of the main body portion 30 and having an outer diameter larger than that of the lower end portion of the reduced diameter main body portion 30. The mounting portion 33 is made of solid glass integrated with the main body portion 30 and has a flat lower end surface. The mounting portion 33 is inserted into the socket portion 4 described later, and is inserted into the support recess 103a of the pedestal portion 100 together with the socket portion 4. The mounting portion 33 is a portion supported by the cylindrical side wall of the supporting portion 103 to mount the translucent portion 3 to the pedestal portion 100. Further, the lower end surface of the mounting portion 33 is an incident portion of light that receives light from the light source 2 while being mounted on the support portion 103.

第２反射部３２は、図３に示すように、透光部３の基端側に位置する入射部に形成される。より具体的には、取付部３３の下端面及び側面の下端側が、サンドブラスト加工することにより形成される。第２反射部３２は、第１反射部３１と同様に、サンドブラスト加工される。第２反射部３２は、支持凹部１０３ａ内で、光源収容部１０２内に配置された光源２のＬＥＤ２１と対面する。 As shown in FIG. 3, the second reflecting portion 32 is formed in the incident portion located on the proximal end side of the translucent portion 3. More specifically, the lower end surface and the lower end side of the side surface of the mounting portion 33 are formed by sandblasting. The second reflecting portion 32 is sandblasted in the same manner as the first reflecting portion 31. The second reflecting portion 32 faces the LED 21 of the light source 2 arranged in the light source accommodating portion 102 in the support recess 103a.

図２に示すように、ソケット部４は、取付部３３の周囲を覆うシリコン製のカバーである。ソケット部４は、半透明で内側に取付部３３を配置可能な円筒形状を有し、中心は上下方向に空洞となっている。ソケット部４の外側面は、支持部１０３の形状に適合する。ソケット部４は、上側に取付部３３を挿入した状態で、取付部３３の下端面にある第２反射部３２が光源２に向き合うように、透光部３と支持部１０３とを接続する。 As shown in FIG. 2, the socket portion 4 is a silicon cover that covers the periphery of the mounting portion 33. The socket portion 4 is translucent and has a cylindrical shape in which the mounting portion 33 can be arranged, and the center is hollow in the vertical direction. The outer surface of the socket portion 4 conforms to the shape of the support portion 103. The socket portion 4 connects the translucent portion 3 and the support portion 103 so that the second reflecting portion 32 on the lower end surface of the mounting portion 33 faces the light source 2 with the mounting portion 33 inserted on the upper side.

カバー２００は、台座部１００に係止され、透光部３及び台座部１００を覆う。カバー２００はカバー本体２０１及びフレーム２０２を有する。
カバー本体２０１は、略円筒形で上下方向に延び、下方が開口するとともに上端部が半球状に塞がれる。カバー本体２０１の直径は、台座部１００の直径より小さく、支持部１０３の直径よりも大きい。カバー本体２０１は、ガラスや樹脂等で透光性を有するように形成される。 The cover 200 is locked to the pedestal portion 100 and covers the translucent portion 3 and the pedestal portion 100. The cover 200 has a cover body 201 and a frame 202.
The cover body 201 has a substantially cylindrical shape and extends in the vertical direction, and the lower end thereof is opened and the upper end portion is closed in a hemispherical shape. The diameter of the cover body 201 is smaller than the diameter of the pedestal portion 100 and larger than the diameter of the support portion 103. The cover body 201 is made of glass, resin, or the like so as to have translucency.

フレーム２０２は、カバー本体２０１の周囲に配置される。図１に示すように、フレーム２０２は、台座カバー２０２ａと、横方向フレーム２０２ｂと、縦方向フレーム２０２ｃとを有する。
台座カバー２０２ａは、基台部１０１の外周に配置される。台座カバー２０２ａの内側面にはネジ溝が形成されており、基台部１０１の外周側のネジと螺合される。台座カバー２０２ａには、カバー本体２０１の下端部が接合されている。
横方向フレーム２０２ｂは、カバー本体２０１の下方と上方で、外周に沿って配置される。
縦方向フレーム２０２ｃは、横方向フレーム２０２ｂを上下方向に接続するように縦方向に延びる。縦方向フレーム２０２ｃは、２本の略Ｕ字形の縦方向フレーム２０２ｃが平面視で十字に組み合わされており、下端部が台座カバー２０２ａに接続されている。 The frame 202 is arranged around the cover body 201. As shown in FIG. 1, the frame 202 has a pedestal cover 202a, a horizontal frame 202b, and a vertical frame 202c.
The pedestal cover 202a is arranged on the outer periphery of the base portion 101. A screw groove is formed on the inner surface of the pedestal cover 202a, and is screwed with the screw on the outer peripheral side of the base portion 101. The lower end of the cover body 201 is joined to the pedestal cover 202a.
The lateral frame 202b is arranged below and above the cover body 201 along the outer circumference.
The vertical frame 202c extends in the vertical direction so as to connect the horizontal frame 202b in the vertical direction. In the vertical frame 202c, two substantially U-shaped vertical frames 202c are combined in a cross shape in a plan view, and the lower end thereof is connected to the pedestal cover 202a.

次に、照明装置１の光り方について説明する。
透光部３は、ソケット部４を介して台座部１００の支持部１０３に接続され、透光部３の基端側の入射部は光源収容部１０２内の光源２と向き合っている。この状態で、電源部から光源２に電流を流し、光源２を発光させる。 Next, how the lighting device 1 shines will be described.
The translucent portion 3 is connected to the support portion 103 of the pedestal portion 100 via the socket portion 4, and the incident portion on the proximal end side of the translucent portion 3 faces the light source 2 in the light source accommodating portion 102. In this state, a current is passed from the power supply unit to the light source 2 to cause the light source 2 to emit light.

ＬＥＤ２１の光は、点のような狭い領域から上方に直進するが、まず、入射部に第２反射部３２が形成されているので、光の一部は、第２反射部３２の粗い面を通過する際に側方へ拡散する。また、長手方向の中央部が膨出したレンズとなる透光部３を上方へ直進するので、膨出した部分において光が拡散するように見える。また、光の一部は、透光部３の上部で浅くなだらかに窪む第１反射部３１の傾斜によって直進性が妨げられ、側方に拡散する。さらに、第１反射部３１が形成されていることから光は周囲に拡散し、白熱電球と似た態様で周囲を照らす。 The light of the LED 21 travels straight upward from a narrow region such as a point, but first, since the second reflecting portion 32 is formed in the incident portion, a part of the light passes through the rough surface of the second reflecting portion 32. Spreads laterally as it passes. Further, since the translucent portion 3 in which the central portion in the longitudinal direction is a bulging lens travels straight upward, it seems that the light is diffused in the bulging portion. Further, a part of the light is diffused laterally because the straightness is hindered by the inclination of the first reflecting portion 31 which is shallowly and gently recessed in the upper part of the translucent portion 3. Further, since the first reflecting portion 31 is formed, the light diffuses to the surroundings and illuminates the surroundings in a manner similar to that of an incandescent light bulb.

本実施形態によれば、以下の効果が奏される。
本実施形態では、照明装置１を、光源２と、光源２から照射される光を透過し、光源２側に位置する基端と対向する先端側が先細り形状の無垢ガラスにより形成された中実の透光部３と、先端側に形成されて基端側に窪む凹部により構成され、光源２から照射される光を拡散及び／又は反射させる第１反射部３１と、を含んで構成した。
透光部３を無垢ガラスにより形成したので、ガラスの内側に発光部を設ける必要がなくなる。このため、発光部をガラスにより覆う二層構造と違って内部の空気層が形成されないので、内部結露が発生しにくく、屋外環境で使用しやすい照明装置１を製造することができる。また、二層構造でないため、部品点数を低減でき、生産工程を簡略化することができる。さらに、ガラスの内部に発光部を設けないことで、透明でありながら光の屈折により光源が外部から視認されず、意匠性も向上する。また、透光部に凹部により構成される第１反射部３１によって、効率的に光源２から照射される光を拡散させることができ、照明装置１の周囲全体を照らすことができる。 According to this embodiment, the following effects are achieved.
In the present embodiment, the lighting device 1 is made of a light source 2 and a solid glass having a tapered shape at the tip side facing the base end located on the light source 2 side and transmitting the light emitted from the light source 2. It is composed of a translucent portion 3 and a first reflecting portion 31 which is formed on the distal end side and is recessed on the proximal end side and diffuses and / or reflects the light emitted from the light source 2.
Since the translucent portion 3 is made of solid glass, it is not necessary to provide a light emitting portion inside the glass. Therefore, unlike the two-layer structure in which the light emitting portion is covered with glass, the internal air layer is not formed, so that internal dew condensation is unlikely to occur, and the lighting device 1 that is easy to use in an outdoor environment can be manufactured. Further, since it is not a two-layer structure, the number of parts can be reduced and the production process can be simplified. Further, by not providing the light emitting portion inside the glass, the light source is not visible from the outside due to the refraction of light while being transparent, and the design is improved. Further, the light emitted from the light source 2 can be efficiently diffused by the first reflecting portion 31 having the concave portion formed in the translucent portion, and the entire surroundings of the lighting device 1 can be illuminated.

本実施形態では、第１反射部３１を、凹部の表面をケシ加工して形成した。凹部をサンドブラスト加工することにより、光源としてＬＥＤを用いた場合でも光が拡散し、より白熱電球に類似した光の配向特性が得られる。また、無垢ガラスをサンドブラスト加工することで係る配光特性を実現できるので、製造しやすい。 In the present embodiment, the first reflective portion 31 is formed by popping the surface of the concave portion. By sandblasting the recesses, light is diffused even when an LED is used as a light source, and light orientation characteristics more similar to those of an incandescent light bulb can be obtained. Further, since the light distribution characteristics can be realized by sandblasting the solid glass, it is easy to manufacture.

本実施形態では、第１反射部３１を、凹部の底部及び凹部の外周縁が、縦断面視で湾曲するように形成した。凹部の底部及び凹部の外周縁が縦断面視で湾曲するようになだらかで浅い形状にすることで、光をより側方に反射させやすくなり、直進する方向に交差する方向に拡散させやすい。よって、凹部の面積が小さくても、屋外用の照明装置１により照らすことのできる面積を比較的広くすることができる。 In the present embodiment, the first reflective portion 31 is formed so that the bottom portion of the recess and the outer peripheral edge of the recess are curved in a vertical cross-sectional view. By making the bottom of the recess and the outer peripheral edge of the recess curved in a vertical cross-sectional view, the shape is gentle and shallow, so that the light can be more easily reflected laterally and diffused in the direction of crossing in the straight direction. Therefore, even if the area of the recess is small, the area that can be illuminated by the outdoor lighting device 1 can be relatively widened.

本実施形態では、透光部３の基端側の入射部に形成される第２反射部３２をさらに含んで構成した。光源２から光が入射する透光部の基端側の入射部に第２反射部３２を含んで構成することで、透光部３の基端側でも入射した光が横方向に拡散する。透光部の基端側と先端側の両方に光を拡散する第１反射部３１及び第２反射部３２を設けることで、より光が拡散しやすくなり、柔らかな光で照らすことができる。 In the present embodiment, the second reflecting portion 32 formed on the incident portion on the proximal end side of the translucent portion 3 is further included. By including the second reflecting portion 32 in the incident portion on the proximal end side of the translucent portion where the light is incident from the light source 2, the incident light is diffused laterally also on the proximal end side of the translucent portion 3. By providing the first reflecting portion 31 and the second reflecting portion 32 that diffuse the light on both the base end side and the tip end side of the light transmitting portion, the light can be more easily diffused and can be illuminated with soft light.

以上、本発明の好ましい実施形態について説明したが、本発明は、上述の実施形態に制限されるものではなく、適宜変更が可能である。
例えば、本実施形態では、第１反射部３１及び第２反射部３２は、サンドブラスト加工により形成されているが、これに限られない。第１反射部３１及び第２反射部３２は、表面を粗くしてつやを消し、不透明にするケシ加工として、薬品によるブラスト加工、研磨加工をしてもよく、又は白色や半透明の塗装加工を施してもよく、その他の加工方法で半透明の曇りガラス状に形成してもよい。 Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment and can be appropriately modified.
For example, in the present embodiment, the first reflecting portion 31 and the second reflecting portion 32 are formed by sandblasting, but the present invention is not limited to this. The first reflective unit 31 and the second reflective unit 32 may be blasted with a chemical agent, polished, or painted in white or translucent as a poppy process that roughens the surface to make the surface matte and opaque. It may be applied, or it may be formed into a translucent frosted glass by another processing method.

また、上記実施形態では、透光部３は、ラグビーボールのような縦長で、先端及び基端側に向かうにしたがって縮む形状を例に説明しているが、これに限られない。少なくとも先端側、例えば透光部の全長の少なくとも１／２～１／３よりも先端側で徐々に縮んでいれば、透光部の胴体部分が同じ直径で、側面が直線状であってもよい。 Further, in the above embodiment, the translucent portion 3 is described by taking as an example a vertically long shape such as a rugby ball and shrinking toward the tip end side and the base end side, but the present invention is not limited to this. If it gradually shrinks at least on the tip side, for example, at least 1/2 to 1/3 of the total length of the translucent portion, even if the body portion of the translucent portion has the same diameter and the side surface is linear. good.

また、上記実施形態では、第１反射部３１及び第２反射部３２は、光をサンドブラスト加工により、主に拡散反射させて拡散するように構成したがこれに限られない。例えば、第１反射部及び／又は第２反射部に銀色の反射材を設け、光を鏡面（全）反射させるように構成してもよい。 Further, in the above embodiment, the first reflecting unit 31 and the second reflecting unit 32 are configured to mainly diffuse and reflect light by sandblasting, but the present invention is not limited to this. For example, a silver reflective material may be provided on the first reflecting portion and / or the second reflecting portion so as to reflect light on a mirror surface (total).

さらに、透光部３の寸法は、自在に変更することができる。照明装置１は、台座部１００に光源２が設けられ、透光部３を台座部１００の支持部１０３に接続するように構成されている。透光部の長手方向の寸法を変更し、光源から先端までの距離を変更することで、光源２や台座部１００は同一品でありながら、透光部を変えることで明るさを変更することができる。さらに、第１反射部を構成する凹部の形状を変えることによっても、明るさや光が拡散する範囲を変更することができる。 Further, the dimensions of the translucent portion 3 can be freely changed. The lighting device 1 is configured such that a light source 2 is provided on the pedestal portion 100 and the translucent portion 3 is connected to the support portion 103 of the pedestal portion 100. By changing the dimensions in the longitudinal direction of the translucent part and changing the distance from the light source to the tip, the light source 2 and the pedestal part 100 are the same product, but the brightness is changed by changing the translucent part. Can be done. Further, the brightness and the range in which the light is diffused can be changed by changing the shape of the concave portion constituting the first reflecting portion.

１ 照明装置
２ 光源
３ 透光部
３１ 第１反射部
３２ 第２反射部
1 Lighting device 2 Light source 3 Translucent part 31 First reflecting part 32 Second reflecting part

Claims (4)

設置面に設置可能な平坦な底面を有する台座部と、
前記台座部に設けられる光源と、
前記光源から照射される光を透過し、前記光源側に位置する基端と対向する先端側が先細り形状の本体部と、前記本体部と一体で前記本体部の前記基端側に形成される取付部と、を有し、無垢ガラスにより形成された中実の透光部と、
前記先端側に形成されて前記基端側に窪む凹部により構成され、前記光源から照射させる光を拡散及び／又は反射させる第１反射部と、
前記取付部の周囲を覆い、前記台座部に挿入されるシリコン製のソケット部と、を有する照明装置。 A pedestal with a flat bottom that can be installed on the installation surface,
The light source provided on the pedestal and
An attachment that transmits the light emitted from the light source and has a tapered main body portion on the tip side facing the proximal end located on the light source side, and an attachment formed on the proximal end side of the main body portion integrally with the main body portion. A solid translucent part , which has a part and is formed of solid glass,
A first reflective portion formed on the distal end side and recessed on the proximal end side to diffuse and / or reflect light emitted from the light source.
A lighting device having a silicon socket portion that covers the periphery of the mounting portion and is inserted into the pedestal portion . 前記第１反射部は、前記凹部の表面をケシ加工又は塗装加工して形成される、請求項１に記載の照明装置。 The lighting device according to claim 1, wherein the first reflecting portion is formed by popping or painting the surface of the recess. 前記第１反射部は、前記凹部の底部及び前記凹部の外周縁が、縦断面視で湾曲して形成されている請求項１又は２に記載の照明装置。 The lighting device according to claim 1 or 2, wherein the first reflecting portion is formed by bending the bottom portion of the recess and the outer peripheral edge of the recess in a vertical cross-sectional view. 前記透光部の前記基端側の入射部に形成される第２反射部をさらに有する、請求項１～３のいずれか１項に記載の照明装置。 The illuminating device according to any one of claims 1 to 3, further comprising a second reflecting portion formed on the incident portion on the proximal end side of the translucent portion.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013138031A (en) 2010-05-03 2013-07-11 Young Lighting Technology Inc Lighting device
WO2016052025A1 (en) 2014-09-30 2016-04-07 株式会社 東芝 Led module and lighting apparatus
WO2017104195A1 (en) 2015-12-18 2017-06-22 株式会社 東芝 Optical element and led lighting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013138031A (en) 2010-05-03 2013-07-11 Young Lighting Technology Inc Lighting device
WO2016052025A1 (en) 2014-09-30 2016-04-07 株式会社 東芝 Led module and lighting apparatus
WO2017104195A1 (en) 2015-12-18 2017-06-22 株式会社 東芝 Optical element and led lighting device

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