JP2009283167A - Indirect lighting device - Google Patents

Indirect lighting device Download PDF

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Publication number
JP2009283167A
JP2009283167A JP2008131597A JP2008131597A JP2009283167A JP 2009283167 A JP2009283167 A JP 2009283167A JP 2008131597 A JP2008131597 A JP 2008131597A JP 2008131597 A JP2008131597 A JP 2008131597A JP 2009283167 A JP2009283167 A JP 2009283167A
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Prior art keywords
side wall
wall portion
light
led lamp
lighting device
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Masato Tamaki
真人 田牧
Hisashi Seto
壽司 瀬戸
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Toyoda Gosei Co Ltd
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Toyoda Gosei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an indirect lighting device having a high heat radiation effect in the indirect lighting device for a curtain or a wall as an article to be irradiated. <P>SOLUTION: The indirect lighting device includes: a plurality of LED lamps; a lens; and a metal retaining member, and is used for a curtain or a wall as an article to be irradiated, wherein the retaining member includes: a first sidewall which extends in the width direction of the article to be irradiated; a second sidewall which is located in a position closer to the article to be irradiated than to the first sidewall and extends in the width direction; a bottom wall which joins the first sidewall to the second sidewall and in which the plurality of LED lamps are linearly disposed along the width direction; a reflection portion which is disposed contiguous to the first sidewall on a light emitting side of the plurality of LED lamps; and a radiator which is disposed to be contiguous to the bottom wall on the back side of the surface with the LED lamps in the bottom wall. The lens is disposed between the first sidewall and the second sidewall so as to cover the light emitting side of the plurality of LED lamps. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明はLEDランプを使用する間接照明装置の改良に関する。   The present invention relates to an improvement of an indirect lighting device using an LED lamp.

カーテン又は壁が被照射物となる間接照明装置において、その光源として蛍光灯が広く使用されている(例えば、特許文献1)。また、光源としてLEDランプを使用する照明装置が特許文献2に開示されている。   Fluorescent lamps are widely used as light sources in indirect lighting devices in which curtains or walls are irradiated objects (for example, Patent Document 1). Also, Patent Document 2 discloses an illumination device that uses an LED lamp as a light source.

実開昭62−53522号公報Japanese Utility Model Publication No. 62-53522 特開2005−177149号公報JP 2005-177149 A

特許文献1の照明装置では光源として蛍光灯を使用するため、装置が大型化している。特許文献2の照明装置のように、光源としてLEDランプを使用すれば装置を小型化できる。
ところで、室内で使用する間接照明装置は、通常の室内照明(直接照明)装置と併用されることがあるが、間接照明装置の輝度が低いと、通常の室内照明の光によって、間接照明の光が視認されなくなり間接照明の効果がほとんど得られない。そこで間接照明装置においても高輝度化が求められる。高輝度化の一つの方法として、大電流で駆動するLEDランプ(大電流駆動型LEDランプ)を使用することが考えられる。しかし、特許文献2の照明装置に大電流駆動型LEDランプを使用すれば、LEDランプのための特別な放熱構造を有していないため、装置が過熱し信頼性が低下する。即ち、十分な信頼性を確保した上で高輝度化することは困難である。
一方、特許文献2の照明装置では、LEDランプ用に特別の光学制御機構を備えていない。そのためカーテン等の被照射物は均一に照明されず、輝度ムラが生じる。この問題に対処するために、点光源であるLEDランプの光を線状光に変換することが考えられる。例えば、LEDランプの光を導光棒の端面から導入して、その側面から放射させて線状光を生成することができる。この構成を間接照明装置に採用すると、輝度ムラは解消されるものの、LEDランプが導光棒の端面側にのみ設けられるため、光量が不足する。特に導光棒が長尺になるほど光量が不足することから、カーテン等の長尺のものを照明する場合には適さない。
そこで本発明は、カーテン又は壁が被照射物となる間接照明装置において、放熱効果が高い間接照明装置を提供することを目的の一つとする。さらに高輝度な発光態様を呈する間接照明装置を提供することを目的の一つとする。また、輝度ムラの少ない間接照明光を生成する間接照明装置を提供することを目的の一つとする。
In the illumination device of Patent Document 1, since a fluorescent lamp is used as a light source, the size of the device is increased. If an LED lamp is used as a light source as in the illumination device of Patent Document 2, the device can be miniaturized.
By the way, an indirect lighting device used indoors may be used in combination with a normal indoor lighting (direct lighting) device. However, if the luminance of the indirect lighting device is low, the light of the indirect lighting is generated by the light of the normal indoor lighting. Is not visible, and the indirect lighting effect is hardly obtained. Therefore, high brightness is also required for indirect lighting devices. As one method for increasing the brightness, it is conceivable to use an LED lamp driven with a large current (a large current driving type LED lamp). However, if a large current drive type LED lamp is used in the illumination device of Patent Document 2, the device does not have a special heat dissipation structure for the LED lamp. That is, it is difficult to increase the luminance while ensuring sufficient reliability.
On the other hand, the illumination device of Patent Document 2 does not include a special optical control mechanism for the LED lamp. For this reason, an object to be irradiated such as a curtain is not illuminated uniformly, resulting in uneven brightness. In order to cope with this problem, it is conceivable to convert the light from the LED lamp, which is a point light source, into linear light. For example, the light from the LED lamp can be introduced from the end face of the light guide bar and emitted from the side face to generate linear light. When this configuration is adopted in the indirect lighting device, the luminance unevenness is eliminated, but the amount of light is insufficient because the LED lamp is provided only on the end face side of the light guide bar. In particular, the longer the light guide bar is, the less the amount of light is. Therefore, it is not suitable for illuminating a long object such as a curtain.
Accordingly, an object of the present invention is to provide an indirect lighting device having a high heat dissipation effect in an indirect lighting device in which a curtain or a wall is an object to be irradiated. Furthermore, it is an object to provide an indirect lighting device that exhibits a light emission mode with higher luminance. Another object is to provide an indirect illumination device that generates indirect illumination light with less luminance unevenness.

上記課題を解決するため、本発明は次の構成からなる。即ち、
複数のLEDランプと、レンズと、及び金属製の保持部材とを備え、カーテン又は壁が被照射物となる間接照明装置であって、
前記保持部材は、
前記被照射物の幅方向に延在する第1側壁部と、
前記第1側壁部よりも前記被照射物側に位置し、前記幅方向に延在する第2側壁部と、
前記第1側壁部と前記第2側壁部とを連結し、前記複数のLEDランプが前記幅方向に沿って線状に配置される底壁部と、
前記複数のLEDランプの光放出側に、前記第1側壁部に連続して設けられる反射部と、及び
前記底壁部の前記LEDランプが配置される面の裏面側に、前記底壁部に連続して設けられる放熱部と、
を有し、
前記レンズは前記複数のLEDランプの光放出側を覆うように、前記第1側壁部と前記第2側壁部との間に設けられる、
間接照明装置である。
In order to solve the above problems, the present invention has the following configuration. That is,
An indirect illumination device comprising a plurality of LED lamps, a lens, and a metal holding member, wherein a curtain or a wall is an irradiated object,
The holding member is
A first sidewall extending in the width direction of the irradiated object;
A second side wall portion that is located closer to the irradiated object than the first side wall portion and extends in the width direction;
A bottom wall portion connecting the first side wall portion and the second side wall portion, wherein the plurality of LED lamps are linearly arranged along the width direction;
On the light emission side of the plurality of LED lamps, on the bottom wall portion, on the back side of the surface on which the LED lamps of the bottom wall portion are arranged, and on the bottom wall portion A heat dissipating part provided continuously;
Have
The lens is provided between the first side wall and the second side wall so as to cover a light emission side of the plurality of LED lamps.
Indirect lighting device.

本発明の間接照明装置では、放熱部が保持部と一体的に、且つ、LEDランプが配置される面の裏面側というLEDランプの近傍領域に設けられる。これにより、LEDランプの熱が効率的に放熱部へ伝播して、放熱効果が向上する。保持部材は金属製であるため、LEDランプの熱が効率的に伝播されて放熱効果がさらに向上する。このように放熱効果が向上することにより、装置の信頼性が高まる。一方、保持部材は反射部、放熱部を一体的に備えるため、これらを別体で設ける場合に比べてコンパクトな構成となる。その結果、部品点数が削減して、製造コストが低下するとともに、組み付け作業の効率が向上する。さらに、レンズがLEDランプの光放出側を覆っているため、防塵効果を奏する。   In the indirect lighting device of the present invention, the heat dissipating part is provided integrally with the holding part and in the vicinity of the LED lamp, that is, the back side of the surface on which the LED lamp is disposed. Thereby, the heat | fever of an LED lamp propagates efficiently to a thermal radiation part, and the thermal radiation effect improves. Since the holding member is made of metal, the heat of the LED lamp is efficiently propagated and the heat dissipation effect is further improved. By improving the heat dissipation effect in this way, the reliability of the device is increased. On the other hand, since the holding member is integrally provided with the reflecting portion and the heat radiating portion, the holding member has a compact configuration as compared with the case where these are provided separately. As a result, the number of parts is reduced, the manufacturing cost is reduced, and the efficiency of the assembly work is improved. Furthermore, since the lens covers the light emitting side of the LED lamp, a dustproof effect is achieved.

(LEDランプ)
本発明の間接照明装置では光源としてLEDランプを使用する。LEDランプは小型であること、駆動電力が小さいこと、発熱量が少ないこと、長寿命であることなど様々な利点を有する。LEDランプの種類は特に限定されず、表面実装(SMD)タイプ、砲弾タイプ(レンズタイプ)、チップオンボード(COB)タイプ等、種々のタイプのLEDランプを採用できる。SMDタイプを採用することが好ましい。SMDタイプは小型であるため、装置の小型化に寄与するからである。LEDランプは大電流で駆動して高輝度の光を放出する、いわゆる大電流駆動型のLEDランプであることが好ましい。間接照明装置の放出光が高輝度化するからである。例えば、LEDランプに搭載されるLEDチップあたり約100mA〜約1Aの電流で駆動するLEDランプを使用することができる。LEDランプの発光色は任意に選択できる。例えば、白色、アンバー、赤、緑、青等の可視領域の発光波長を有するLEDランプを採用できる。LEDチップの光の一部を蛍光体で波長変換し、LEDチップの光と蛍光とが混合した光を放射するLEDランプを使用することもできる。蛍光体は例えばLEDランプの封止樹脂に含有させることができる。封止樹脂の表面に蛍光体を含む層を設けてもよい。
(LED lamp)
In the indirect illumination device of the present invention, an LED lamp is used as a light source. The LED lamp has various advantages such as small size, low driving power, low calorific value, and long life. The type of the LED lamp is not particularly limited, and various types of LED lamps such as a surface mount (SMD) type, a shell type (lens type), and a chip on board (COB) type can be adopted. It is preferable to adopt the SMD type. This is because the SMD type is small and contributes to downsizing of the apparatus. The LED lamp is preferably a so-called large current drive type LED lamp that emits high-luminance light when driven with a large current. This is because the light emitted from the indirect lighting device increases in luminance. For example, an LED lamp that is driven at a current of about 100 mA to about 1 A per LED chip mounted on the LED lamp can be used. The emission color of the LED lamp can be arbitrarily selected. For example, an LED lamp having an emission wavelength in the visible region such as white, amber, red, green, and blue can be employed. It is also possible to use an LED lamp that converts part of the light of the LED chip with a phosphor and emits light in which the light of the LED chip and fluorescence are mixed. The phosphor can be contained in, for example, a sealing resin for LED lamps. A layer containing a phosphor may be provided on the surface of the sealing resin.

同種又は異種のLEDチップが複数個内蔵されたLEDランプを光源として使用することもできる。例えば、赤、緑、青の各色のLEDチップを一つの基板上にマウントしたLEDランプ(3in1LEDランプ)を用い、各LEDチップの発光態様を制御すれば、所望の色を発光させることができる。これにより、所望の発光色で発光する間接照明装置を構成することができる。例えば、電球色で発光する間接照明装置とすることができる。   An LED lamp in which a plurality of LED chips of the same type or different types are incorporated can also be used as a light source. For example, a desired color can be emitted by using an LED lamp (3-in-1 LED lamp) in which LED chips of red, green, and blue are mounted on a single substrate and controlling the light emission mode of each LED chip. Thereby, the indirect illumination device which emits light with a desired emission color can be configured. For example, an indirect lighting device that emits light of a light bulb color can be used.

(保持部材)
保持部材はアルミ、銅等の金属製である。保持部材は押出成形などの公知の方法で成形することができる。保持部材は、第1側壁部、第2側壁部、底壁部、反射部、及び放熱部を一体的に有する。第1側壁部は被照射物であるカーテン又は壁(以下、本明細書では「カーテン等」ともいう)の幅方向に延在する。第2側壁部は第1側壁部よりもカーテン等側に位置し、カーテン等の幅方向に延在する。底壁部は第1側壁部と第2側壁部とを連結する。底壁部には複数のLEDランプがカーテン等の幅方向に沿って線状に配置される。例えば、第1側壁部、第2側壁部及び底壁部によってコの字状に形成して、底壁部の内側面(第1側壁部側及び第2側壁部側に向く面)に複数のLEDランプをカーテン等の幅方向に沿って線状に配置することができる。なお、LEDランプを配置する間隔は特に限定されず、所定の間隔で配置することができる。第1側壁部と第2側壁部は、通常、底壁部に垂直であるがこれに限定されず、LEDランプの光の放出を妨げない範囲で壁側又は室内側に傾斜していてもよい。なお、ここでいう「室内側」とは本発明の間接照明装置に対して、被照射物であるカーテン等の反対側を示す。第1側壁部と第2側壁部は通常平面であるがこれに限定されず、LEDランプの光の放出を妨げない範囲で壁側又は室内側に緩やかに湾曲する曲面であってもよい。第1側壁部及び第2側壁部の形状はカーテン等の幅方向に一様であってもよいし、第1側壁部又は第2側壁部の一部が既述のように傾斜又は湾曲していてもよい。
(Holding member)
The holding member is made of a metal such as aluminum or copper. The holding member can be formed by a known method such as extrusion. A holding member has a 1st side wall part, a 2nd side wall part, a bottom wall part, a reflection part, and a thermal radiation part integrally. The first side wall extends in the width direction of a curtain or wall (hereinafter also referred to as “curtain etc.” in this specification), which is an object to be irradiated. The second side wall portion is located closer to the curtain or the like than the first side wall portion, and extends in the width direction of the curtain or the like. The bottom wall portion connects the first side wall portion and the second side wall portion. A plurality of LED lamps are linearly arranged on the bottom wall portion in the width direction of the curtain or the like. For example, the first side wall part, the second side wall part, and the bottom wall part are formed in a U shape, and a plurality of inner side surfaces (surfaces facing the first side wall part side and the second side wall part side) of the bottom wall part are formed. The LED lamps can be arranged linearly along the width direction of the curtain or the like. In addition, the space | interval which arrange | positions an LED lamp is not specifically limited, It can arrange | position at a predetermined space | interval. The first side wall portion and the second side wall portion are usually perpendicular to the bottom wall portion, but are not limited to this, and may be inclined to the wall side or the indoor side as long as they do not hinder the emission of light from the LED lamp. . The “indoor side” as used herein refers to the opposite side of the indirect illumination device of the present invention, such as a curtain that is an object to be irradiated. The first side wall and the second side wall are usually flat surfaces, but are not limited to this, and may be curved surfaces that gently curve toward the wall side or the room side as long as they do not hinder the emission of light from the LED lamp. The shape of the first side wall and the second side wall may be uniform in the width direction of the curtain or the like, and a part of the first side wall or the second side wall is inclined or curved as described above. May be.

反射部は複数のLEDランプの光放出側に、前記第1側壁部に連続して設けられる。反射部の形状は例えば、次の形状とすることができる。即ち、幅方向に垂直な断面において、保持部材の第1側壁部のLEDランプの光放出側の先端が、第2側壁部のLEDランプの光放出側の先端よりもLEDランプから遠位に位置するように延長させて、当該延長した部分を反射部とすることができる。このような反射部により、LEDランプの放出光の内、室内側に進行する光の一部がカーテン等に反射される。その結果、カーテン等側に進行する光量が増して、間接照明光の輝度が向上する。反射部の形状はLEDランプの光をカーテン等側へ反射する形状であればよい。例えば、第1側壁部と平行な平面形状であってもよいし、反射部の一部がカーテン等側に傾斜又は湾曲した形状であってもよい。   The reflection part is continuously provided on the light emission side of the plurality of LED lamps on the first side wall part. The shape of the reflecting portion can be, for example, the following shape. That is, in the cross section perpendicular to the width direction, the tip of the light emission side of the LED lamp of the first side wall portion of the holding member is located farther from the LED lamp than the tip of the LED lamp of the second side wall portion on the light emission side. Thus, the extended portion can be used as a reflection portion. By such a reflection part, a part of the light that travels indoors among the light emitted from the LED lamp is reflected by the curtain or the like. As a result, the amount of light traveling toward the curtain or the like increases and the brightness of the indirect illumination light is improved. The shape of the reflecting portion may be a shape that reflects the light of the LED lamp toward the curtain or the like. For example, a planar shape parallel to the first side wall may be used, or a part of the reflecting part may be inclined or curved toward the curtain or the like.

放熱部はLEDランプが配置される面の裏面に、底壁部に連続して設けられる。放熱部の形状は特に限定されない。例えば、フィンやピンを複数備える形状とすることができる。このような形状とすれば表面積が増加して放熱効果が向上する。一実施態様では放熱部の形状は、底壁部に平行なフィンが等間隔で複数枚積層された形状とすることができる。   The heat radiating portion is continuously provided on the bottom wall portion on the back surface of the surface on which the LED lamp is disposed. The shape of the heat dissipation part is not particularly limited. For example, it can be made into the shape provided with two or more fins and pins. With such a shape, the surface area is increased and the heat dissipation effect is improved. In one embodiment, the shape of the heat radiating portion may be a shape in which a plurality of fins parallel to the bottom wall portion are laminated at equal intervals.

(レンズ)
LEDランプの光放出側にはレンズが設けられる。レンズの材質は透明性を有する材質であれば特に限定されない。例えば、アクリル樹脂、シリコン樹脂、ガラス等を例示できる。中でも、アクリル樹脂製とすることが好ましい。アクリル樹脂は光透過率が高く、成形が容易で強度に優れるため、取り扱い易いからである。レンズの外側表面に光拡散処理を施すことが好ましい。光拡散処理は例えば、シボ加工、ブラスト処理などの表面加工や、光反射性インクの塗布又は印刷、光反射性のテープ又はフィルムの貼付など、公知の方法を採用することができる。なお、レンズは無色透明の他、有色透明であってもよい。また、レンズに光拡散材を含有させて、レンズ内で積極的に光を拡散させても良い。光拡散材は、例えば所定の粒径を有するガラス、アルミなどの金属、レンズの材質と光の屈折率の異なる樹脂などを採用することができる。拡散材はレンズに均一に分布させることが好ましい。拡散作用が均一となり輝度ムラの発生を一層防止できるからである。
一方、レンズに色変換材を含有させることができる。レンズに使用される色変換材は、LEDランプの発光色を考慮して、特定の波長域の光を吸収する吸収材や、特定の波長域の光で励起されて蛍光を発する蛍光材などを採用することができる。例えば、光源として白色LEDランプを使用し、色変換材として約400nm〜約800nmの波長の光(赤色系以外の光)を吸収する吸収材を使用することにより、白色LEDランプの光を電球色に近い色の光に変換することができる。なお、レンズは型成形、切削等の公知の方法で成型することができる。
以下、実施例に基づき本発明をより詳細に説明する。
(lens)
A lens is provided on the light emission side of the LED lamp. The material of the lens is not particularly limited as long as it is a transparent material. For example, an acrylic resin, a silicon resin, glass, etc. can be illustrated. Among these, it is preferable to use an acrylic resin. This is because acrylic resin has high light transmittance, is easy to mold and has excellent strength, and is easy to handle. It is preferable to apply a light diffusion treatment to the outer surface of the lens. For the light diffusion treatment, for example, known methods such as surface treatment such as embossing and blasting, application or printing of light reflecting ink, and application of light reflecting tape or film can be adopted. The lens may be colored and transparent as well as colorless and transparent. In addition, a light diffusing material may be included in the lens so that light is actively diffused in the lens. As the light diffusing material, for example, glass having a predetermined particle size, metal such as aluminum, resin having a different refractive index of light from the material of the lens, and the like can be employed. The diffusing material is preferably distributed uniformly on the lens. This is because the diffusing action becomes uniform and the occurrence of uneven brightness can be further prevented.
On the other hand, a color conversion material can be contained in the lens. The color conversion material used for the lens includes an absorbing material that absorbs light in a specific wavelength range, a fluorescent material that emits fluorescence when excited by light in a specific wavelength range, taking into consideration the emission color of the LED lamp. Can be adopted. For example, by using a white LED lamp as a light source and using an absorbing material that absorbs light having a wavelength of about 400 nm to about 800 nm (light other than red) as a color conversion material, the light of the white LED lamp is changed to a light bulb color. Can be converted to light of a color close to. The lens can be molded by a known method such as molding or cutting.
Hereinafter, based on an Example, this invention is demonstrated in detail.

本発明の実施例である間接照明装置1の斜視図を図1に示し、図1におけるA−A線断面図を図2に示す。間接照明装置1は、カーテン2に光を照射して室内を間接的に照明する間接照明装置である。図1に示すように、室内の壁3にカーテンレールボックス4が設けられる。カーテンレールボックス4は、カーテンレール41と左右2個の間接照明装置1を備える。図2に示すように、カーテンレール41はカーテンレールボックス4内側の底部に取り付けられ、フック42を介してカーテン2を懸架している。間接照明装置1はカーテンレールボックス4内側の室内側壁面に取り付けられる。図2から間接照明装置1を抜き出した拡大図を図3に示す。図3に示すように、間接照明装置1は保持部材10、LEDランプ11、基板12、レンズ13を備える。保持部材10はアルミ製で押出成形により形成される。保持部材10の概略形状は、カーテンレールボックス4の長手方向(即ち、カーテン2の幅方向)に沿う略棒状であって、その幅方向の長さは約900mmである。図3に示すように、保持部材10は、第1側壁部10a、第2側壁部10b、底壁部10c、反射部14、及び放熱部15を備える。第1側壁部10aと第2側壁部10bは底壁部10cによって連結されている。第1側壁部10aは壁3に平行であって、底壁部10cに対して室内側に位置する。第2側壁部10bも壁3に平行であって、第2側壁部10bは底壁部10cに対してカーテン2側に位置する。底壁部10cは壁3に垂直である。第1側壁部10a、第2側壁部10b及び底壁部10cは長手方向に一様に形成されている。図3に示す縦断面において、第1側壁部10a、第2側壁部10b及び底壁部10cはコの字状を形成している。底壁部10cの内側面(第1側壁部10a及び第2側壁部10b側の面)には、LEDランプ11が幅方向に線状に約40mmの間隔で基板12を介して、20個配置されている。LEDランプ11は電球色発光の表面実装型LEDランプであって、LEDランプ11に搭載されるLEDチップあたり約100mA〜約1Aの電流で駆動して高輝度の光を放出する、いわゆる大電流駆動型のLEDランプである。その光軸11aが壁3に平行でかつ地面に対して鉛直となっている。即ち、第1側壁部10a、第2側壁部10b及び底壁部10cにより形成されるコの字の開口側(図3において紙面下方側)に向くように配置される。   FIG. 1 shows a perspective view of an indirect lighting device 1 according to an embodiment of the present invention, and FIG. 2 shows a cross-sectional view taken along line AA in FIG. The indirect lighting device 1 is an indirect lighting device that illuminates a room indirectly by irradiating the curtain 2 with light. As shown in FIG. 1, a curtain rail box 4 is provided on a wall 3 in the room. The curtain rail box 4 includes a curtain rail 41 and two left and right indirect lighting devices 1. As shown in FIG. 2, the curtain rail 41 is attached to the bottom inside the curtain rail box 4 and suspends the curtain 2 via a hook 42. The indirect lighting device 1 is attached to the indoor side wall surface inside the curtain rail box 4. FIG. 3 shows an enlarged view of the indirect lighting device 1 extracted from FIG. As shown in FIG. 3, the indirect lighting device 1 includes a holding member 10, an LED lamp 11, a substrate 12, and a lens 13. The holding member 10 is made of aluminum and is formed by extrusion. The general shape of the holding member 10 is a substantially bar shape along the longitudinal direction of the curtain rail box 4 (that is, the width direction of the curtain 2), and the length in the width direction is about 900 mm. As shown in FIG. 3, the holding member 10 includes a first side wall part 10 a, a second side wall part 10 b, a bottom wall part 10 c, a reflection part 14, and a heat dissipation part 15. The first side wall portion 10a and the second side wall portion 10b are connected by a bottom wall portion 10c. The first side wall portion 10a is parallel to the wall 3 and is located on the indoor side with respect to the bottom wall portion 10c. The second side wall portion 10b is also parallel to the wall 3, and the second side wall portion 10b is located on the curtain 2 side with respect to the bottom wall portion 10c. The bottom wall portion 10 c is perpendicular to the wall 3. The 1st side wall part 10a, the 2nd side wall part 10b, and the bottom wall part 10c are uniformly formed in the longitudinal direction. In the vertical cross section shown in FIG. 3, the first side wall 10a, the second side wall 10b, and the bottom wall 10c form a U-shape. Twenty LED lamps 11 are arranged on the inner side surface of the bottom wall portion 10c (the surfaces on the first side wall portion 10a and the second side wall portion 10b side) through the substrate 12 at intervals of about 40 mm in the width direction. Has been. The LED lamp 11 is a surface-mount type LED lamp that emits light bulbs, and is a so-called large current drive that emits high-luminance light when driven by a current of about 100 mA to about 1 A per LED chip mounted on the LED lamp 11. Type LED lamp. The optical axis 11a is parallel to the wall 3 and perpendicular to the ground. That is, it is arranged so as to face the U-shaped opening side (the lower side in the drawing in FIG. 3) formed by the first side wall portion 10a, the second side wall portion 10b, and the bottom wall portion 10c.

LEDランプ11の光放出側にはレンズ13が設けられる。第2側壁部10bのLEDランプ11の光放出方向(図3において紙面下方)の先端近傍に凹部16が設けられており、第1側壁部10aには凹部16に対向する位置に凹部17が設けられている。レンズ13は凹部16、17に係合するように第1側壁部10aと第2側壁部10bの間に固定されている。これにより、レンズ13がLEDランプ11の光放出側の略全域を覆っている。レンズ13はアクリル製の平板であって、レンズ13の外側面の略全面にシボ加工が施されている。
反射部14は第1側壁部10aに連続して形成されている。反射部14は第1側壁部10aを延長して形成されており、第1側壁部10aと平行である。反射部14の内側面(カーテン2側の面)は鏡面加工が施されている。
A lens 13 is provided on the light emission side of the LED lamp 11. A recess 16 is provided in the vicinity of the tip of the second side wall 10b in the light emission direction of the LED lamp 11 (downward in FIG. 3), and a recess 17 is provided in the first side wall 10a at a position facing the recess 16. It has been. The lens 13 is fixed between the first side wall portion 10a and the second side wall portion 10b so as to engage with the concave portions 16 and 17. Thereby, the lens 13 covers substantially the entire area of the LED lamp 11 on the light emission side. The lens 13 is a flat plate made of acrylic, and a texture is applied to substantially the entire outer surface of the lens 13.
The reflection portion 14 is formed continuously with the first side wall portion 10a. The reflection part 14 is formed by extending the first side wall part 10a, and is parallel to the first side wall part 10a. The inner surface (surface on the curtain 2 side) of the reflecting portion 14 is mirror-finished.

保持部材10の底壁部10cの外側(LEDランプ11が配置される面の裏面側)には放熱部15が設けられている。放熱部15の材質は、保持部材10と同一の材質のアルミであって、保持部材10と連続して形成されている。放熱部15は、保持部材10の第1側壁部10aを上方に延長して形成された放熱部基部15aと、放熱部基部15aに垂直でかつ底壁部10cに平行に形成された4個の放熱フィン15bとを備える。4個の放熱フィン15bは所定間隔の空隙をもって積層され、放熱部基部15aで固定されている。   A heat radiating portion 15 is provided outside the bottom wall portion 10c of the holding member 10 (on the back side of the surface on which the LED lamp 11 is disposed). The material of the heat radiating portion 15 is aluminum of the same material as the holding member 10 and is formed continuously with the holding member 10. The heat radiating portion 15 includes a heat radiating portion base portion 15a formed by extending the first side wall portion 10a of the holding member 10 upward, and four pieces formed perpendicular to the heat radiating portion base portion 15a and parallel to the bottom wall portion 10c. And radiating fins 15b. The four radiating fins 15b are stacked with a gap of a predetermined interval, and are fixed by a radiating portion base 15a.

次に間接照明装置1の照明態様を説明する。LEDランプ11の光は、まずレンズ13を透過して保持部材10内から外部へ放出される。放出光の一部はカーテン2側に進行してカーテン2に直接照射する(図2のa及びbで示す光)。放出光の他の一部は一旦、カーテン2と反対側(即ち室内中央側)に進行して反射部14に照射する。反射部14は受光した光をカーテン2側へ反射する(図2のcで示す光)。以上のように、LEDランプ11の光は直接カーテン2を照明するとともに、反射部14を介してカーテン2を照明する。このようにカーテン2を照明することによって室内を間接的に照明する。この例では、LEDランプ11の点灯制御は、室内に設けられる室内照明装置(直接照明装置。図示せず)の点灯制御と連動して行う。なお、間接照明装置1用の点灯制御スイッチを新たに設けて間接照明装置1と室内照明装置を別個に点灯制御することとしてもよい。
保持部材10の底壁部10cの外側には放熱部15が設けられている。放熱部15は保持部材10と同一の材料で保持部材10と一体的に形成されているため、効率的にLEDランプ11の熱を放射する。このLEDランプ11は大電流駆動型であり、20個使用されるため、一般的なLEDランプを使用する場合よりも装置の全体の発熱量が多い。しかし、放熱部15により効率的に放熱されるため、装置の過熱が防止でき、装置の信頼性が向上する。また、放熱部15の放熱フィン15aは底壁部10cに平行に形成されているため、塵埃等が放熱フィン15aの間に堆積しにくい。これにより、防塵効果に優れる。一方、レンズ13の外側面にはシボ加工が施されている。これにより、レンズ13を透過して外部に放出された光は拡散する。その結果、放出光の輝度ムラが軽減される。
Next, the illumination aspect of the indirect illumination device 1 will be described. The light from the LED lamp 11 first passes through the lens 13 and is emitted from the holding member 10 to the outside. Part of the emitted light travels to the curtain 2 side and directly irradiates the curtain 2 (light indicated by a and b in FIG. 2). The other part of the emitted light once travels to the side opposite to the curtain 2 (that is, the center side of the room) and irradiates the reflecting portion 14. The reflector 14 reflects the received light toward the curtain 2 (light indicated by c in FIG. 2). As described above, the light from the LED lamp 11 directly illuminates the curtain 2 and also illuminates the curtain 2 via the reflecting portion 14. By illuminating the curtain 2 in this way, the room is indirectly illuminated. In this example, the lighting control of the LED lamp 11 is performed in conjunction with the lighting control of an indoor lighting device (direct lighting device, not shown) provided in the room. Note that a lighting control switch for the indirect lighting device 1 may be newly provided to control lighting of the indirect lighting device 1 and the indoor lighting device separately.
A heat radiating portion 15 is provided outside the bottom wall portion 10 c of the holding member 10. Since the heat radiation part 15 is formed integrally with the holding member 10 with the same material as the holding member 10, it efficiently radiates the heat of the LED lamp 11. Since this LED lamp 11 is of a large current drive type and 20 pieces are used, the total amount of heat generated by the apparatus is larger than when a general LED lamp is used. However, since heat is efficiently radiated by the heat radiating section 15, the apparatus can be prevented from overheating, and the reliability of the apparatus is improved. Moreover, since the radiation fin 15a of the radiation part 15 is formed in parallel with the bottom wall part 10c, dust etc. are hard to accumulate between the radiation fins 15a. Thereby, it is excellent in a dustproof effect. On the other hand, the outer surface of the lens 13 is textured. Thereby, the light transmitted through the lens 13 and emitted to the outside diffuses. As a result, uneven brightness of emitted light is reduced.

本実施例では、間接照明装置1をカーテンレースボックス4内に設置して、カーテン2に光を上方から照射したがこれに限定されず、本発明の間接照明装置を室内の床近傍に設けて下方からカーテンを照射することにしてもよい。また、間接照明装置1ではカーテン2に光を照射して間接的に室内を照明したが、照明態様はこれに限定されず、室内の壁面に光を照射して間接的に室内を照明することにしてもよい。この場合もカーテンを照明する場合と同様に上方からの照明、下方からの照明のいずれの照明態様を採用してもよい。   In this embodiment, the indirect lighting device 1 is installed in the curtain lace box 4 and the curtain 2 is irradiated with light from above. However, the present invention is not limited to this, and the indirect lighting device of the present invention is provided near the indoor floor. The curtain may be irradiated from below. Moreover, in the indirect lighting device 1, the curtain 2 is irradiated with light to illuminate the room indirectly, but the lighting mode is not limited to this, and the indoor wall surface is irradiated with light to illuminate the room indirectly. It may be. In this case, as in the case of illuminating the curtain, any illumination mode from above or from below may be adopted.

本発明の間接照明装置は居室内や自動車室内などの様々な場所での間接照明装置として使用することができる。   The indirect lighting device of the present invention can be used as an indirect lighting device in various places such as a living room or an automobile room.

この発明は、上記発明の実施の形態及び実施例の説明に何ら限定されるものではない。特許請求の範囲の記載を逸脱せず、当業者が容易に想到できる範囲で種々の変形態様もこの発明に含まれる。 本明細書の中で明示した論文、公開特許公報、及び特許公報などの内容は、その全ての内容を援用によって引用することとする。   The present invention is not limited to the description of the embodiments and examples of the invention described above. Various modifications may be included in the present invention as long as those skilled in the art can easily conceive without departing from the description of the scope of claims. The contents of papers, published patent gazettes, patent gazettes, and the like specified in this specification are incorporated by reference in their entirety.

図1は本発明の実施例である間接照明装置1の斜視図である。FIG. 1 is a perspective view of an indirect lighting device 1 according to an embodiment of the present invention. 図1におけるA−A線断面図である。It is the sectional view on the AA line in FIG. 図2の一部拡大図である。FIG. 3 is a partially enlarged view of FIG. 2.

符号の説明Explanation of symbols

1 間接照明装置
2 カーテン
3 壁面
4 カーテンレールボックス
41 カーテンレール
42 フック
10 保持部材
10a 第1側壁部
10b 第2側壁部
10c 底壁部
11 LEDランプ
11a 光軸
12 基板
13 レンズ
15 放熱部
15a 放熱部基部
15b 放熱フィン
DESCRIPTION OF SYMBOLS 1 Indirect lighting apparatus 2 Curtain 3 Wall surface 4 Curtain rail box 41 Curtain rail 42 Hook 10 Holding member 10a 1st side wall part 10b 2nd side wall part 10c Bottom wall part 11 LED lamp 11a Optical axis 12 Board | substrate 13 Lens 15 Heat radiation part 15a Heat radiation part Base 15b Heat dissipation fin

Claims (4)

複数のLEDランプと、レンズと、及び金属製の保持部材とを備え、カーテン又は壁が被照射物となる間接照明装置であって、
前記保持部材は、
前記被照射物の幅方向に延在する第1側壁部と、
前記第1側壁部よりも前記被照射物側に位置し、前記幅方向に延在する第2側壁部と、
前記第1側壁部と前記第2側壁部とを連結し、前記複数のLEDランプが前記幅方向に沿って線状に配置される底壁部と、
前記複数のLEDランプの光放出側に、前記第1側壁部に連続して設けられる反射部と、及び
前記底壁部の前記LEDランプが配置される面の裏面側に、前記底壁部に連続して設けられる放熱部と、
を有し、
前記レンズは前記複数のLEDランプの光放出側を覆うように、前記第1側壁部と前記第2側壁部との間に設けられる、
間接照明装置。
An indirect illumination device comprising a plurality of LED lamps, a lens, and a metal holding member, wherein a curtain or a wall is an irradiated object,
The holding member is
A first sidewall extending in the width direction of the irradiated object;
A second side wall portion that is located closer to the irradiated object than the first side wall portion and extends in the width direction;
A bottom wall portion connecting the first side wall portion and the second side wall portion, wherein the plurality of LED lamps are linearly arranged along the width direction;
On the light emission side of the plurality of LED lamps, on the bottom wall portion, on the back side of the surface on which the LED lamps of the bottom wall portion are arranged, and on the bottom wall portion A heat dissipating part provided continuously;
Have
The lens is provided between the first side wall and the second side wall so as to cover a light emission side of the plurality of LED lamps.
Indirect lighting device.
前記LEDランプは、それに搭載されるLEDチップあたり100mA〜1Aの電流で駆動することを特徴とする、請求項1に記載の間接照明装置。   The indirect lighting device according to claim 1, wherein the LED lamp is driven at a current of 100 mA to 1 A per LED chip mounted on the LED lamp. 前記レンズに光拡散処理が施されていることを特徴とする、請求項1又は2に記載の間接照明装置。   The indirect illumination device according to claim 1, wherein the lens is subjected to a light diffusion process. 前記放熱部が前記幅方向に平行な複数のフィンを有することを特徴とする、請求項1〜3のいずれか一項に記載の間接照明装置。   The indirect lighting device according to claim 1, wherein the heat dissipating unit includes a plurality of fins parallel to the width direction.
JP2008131597A 2008-05-20 2008-05-20 Indirect lighting device Pending JP2009283167A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

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JP2008131597A JP2009283167A (en) 2008-05-20 2008-05-20 Indirect lighting device

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Publication Number Publication Date
JP2009283167A true JP2009283167A (en) 2009-12-03

Family

ID=41453433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008131597A Pending JP2009283167A (en) 2008-05-20 2008-05-20 Indirect lighting device

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Country Link
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