JP2008210943A - Light emitting device - Google Patents

Light emitting device Download PDF

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JP2008210943A
JP2008210943A JP2007045395A JP2007045395A JP2008210943A JP 2008210943 A JP2008210943 A JP 2008210943A JP 2007045395 A JP2007045395 A JP 2007045395A JP 2007045395 A JP2007045395 A JP 2007045395A JP 2008210943 A JP2008210943 A JP 2008210943A
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light
emitting device
lens
light emitting
base
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JP5050562B2 (en
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Shigeji Hirofuji
茂治 廣藤
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Nichia Chemical Industries Ltd
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Nichia Chemical Industries Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light emitting device capable of exhibiting a function as a lighting fixture to the utmost by simple structure and easy handling, and capable of continuously and evenly lighting with no interruption of light even if a plurality of light emitting devices are connected to one another as a line light source, for achieving indoor and outdoor lighting fixtures with no unevenness in color, excellent in color mixture, smaller in size, reduced in weight, and high in decorativeness. <P>SOLUTION: The light emitting device comprises a base, a substrate on which a plurality of light emitting elements are mounted in a length direction, and a lens which is longer than the base and the substrate in the length direction and covers them are stacked in this order. The lens comprises, at a pair of both ends, facing each other in length direction, notches which constitute fixing parts for fixing the lens outside and flanges formed on inner peripheries of the notches. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、発光装置に関し、より詳細には、ライン状に複数の発光素子が搭載された発光装置に関する。   The present invention relates to a light emitting device, and more particularly to a light emitting device in which a plurality of light emitting elements are mounted in a line shape.

近年、発光ダイオード（ＬＥＤ）等の発光素子を用いた発光装置が提案されている（例えば、特許文献１〜３等）。
このような発光装置のうち、ＬＥＤが複数個、ライン状に並べられて構成された発光装置が、間接照明等の照明装置として用いられている。この発光装置は、通常、金属基板と、この基板上に搭載された複数のＬＥＤチップと、これらＬＥＤチップを覆うように形成されたシリンドリカルレンズとから構成されている（例えば、特許文献４）。
特開２００６−３３１８１７号公報 ＷＯ２００２−０６７０５１号公報 特開２００６−１７２８９３号公報 特開２００２−２９９６９７号公報 In recent years, light-emitting devices using light-emitting elements such as light-emitting diodes (LEDs) have been proposed (for example, Patent Documents 1 to 3).
Among such light emitting devices, a light emitting device in which a plurality of LEDs are arranged in a line is used as an illumination device such as indirect illumination. This light-emitting device is usually composed of a metal substrate, a plurality of LED chips mounted on the substrate, and a cylindrical lens formed so as to cover these LED chips (for example, Patent Document 4).
JP 2006-331817 A WO2002-067051 JP 2006-172893 A JP 2002-299697 A

このような発光装置は、色むらがなく、混色性に優れ、より小型・軽量化されたデザイン性に富む屋内用の照明器具、さらには屋外用の照明装置として開発が進められている。従って、構造的にシンプルで、取り扱いが容易で、照明器具等としての機能を最大限に発揮することができる発光装置の開発が望まれており、特に、ライン光源として、複数の発光装置を連結させて用いる場合においても、光が途切れず、連続的に均一に照明することができる発光装置が必要とされている。   Such a light-emitting device is being developed as an indoor lighting device having excellent color mixing, excellent color mixing, and being more compact and lighter, and also as an outdoor lighting device. Therefore, it is desired to develop a light emitting device that is structurally simple, easy to handle, and capable of maximizing the function as a lighting fixture, and in particular, connecting a plurality of light emitting devices as a line light source. There is a need for a light emitting device that can continuously and uniformly illuminate light even when used.

本発明の発光装置は、ベースと、長手方向に複数の発光素子が搭載された基板と、長手方向において前記ベース及び基板よりも長尺で、かつ前記ベース及び基板を被覆するレンズとがこの順に積層されて構成される発光装置であって、
前記レンズは、長手方向に対向する一対の両端部に、前記レンズを外部に固定するための固定部を構成する切欠部を備えることを特徴とする。 The light emitting device of the present invention includes a base, a substrate on which a plurality of light emitting elements are mounted in the longitudinal direction, and a lens that is longer than the base and the substrate in the longitudinal direction and covers the base and the substrate in this order. A light-emitting device configured by stacking;
The lens includes a notch portion that constitutes a fixing portion for fixing the lens to the outside at a pair of opposite end portions in the longitudinal direction.

このような発光装置では、前記切欠部は、該切欠部の内周に鍔部を備えることが好ましい。
また、前記固定部は、レンズと同じ材料によって一体的に形成されていることが好ましい。
前記ベースと基板との間に熱伝導性シートをさらに備えることが好ましい。 In such a light emitting device, it is preferable that the notch includes a flange on the inner periphery of the notch.
Moreover, it is preferable that the said fixing | fixed part is integrally formed with the same material as a lens.
It is preferable that a heat conductive sheet is further provided between the base and the substrate.

前記切欠部は、貫通孔を半割した形状であることが好ましい。
さらに、前記ベース及び基板は、長手方向の両端部がレンズの両端部における固定部の内側に配置し、前記切欠部は、（１）光観測面から背面に向かって貫通するか、（２）光観測面に対して交差する方向に向かって貫通することが好ましい。 It is preferable that the said notch part is a shape which halved the through-hole.
Further, the base and the substrate are arranged such that both ends in the longitudinal direction are inside the fixed portion at both ends of the lens, and the notch penetrates from the light observation surface toward the back surface, or (2) It is preferable to penetrate in the direction intersecting the light observation surface.

また、前記基板に連結し、該基板に搭載された発光素子に電源を供給するためのコネクタが、光観測面に対する背面側に配置されてなることが好ましい。
さらに、前記レンズは、光観測面の内側から背面側に延設された位置合わせ用の突部を備え、前記基板及びベースの対応する位置に、前記位置合わせ用突部を通す穴を有するか、光観測面に対する両側面に、少なくともベースと着脱可能に噛み合って結合する取付部を備え、該取付部は、内側に起曲した鉤部を備え、かつ前記ベースは、レンズの鉤部に対応する位置に、鉤部を係止するための係止部が配置されてなるか、シリンドリカルレンズ形状又は平面形状であるか、光観測面に拡散部を備えることが好ましい。 In addition, it is preferable that a connector connected to the substrate and supplying power to the light emitting element mounted on the substrate is disposed on the back side with respect to the light observation surface.
Further, the lens includes a protrusion for alignment extending from the inner side to the back side of the light observation surface, and has a hole through which the protrusion for alignment is passed at a corresponding position on the substrate and the base. , Provided on both side surfaces with respect to the light observation surface, at least mounting portions that detachably engage with the base, and the mounting portions include flange portions bent inward, and the base corresponds to the lens flange portion. It is preferable that a locking portion for locking the collar portion is disposed at a position where the light is observed, a cylindrical lens shape or a planar shape, or a diffusion portion on the light observation surface.

本発明によれば、色むらがなく、混色性に優れ、より小型・軽量化されたデザイン性に富む屋内用及び屋外用の照明装置を実現することができる。これにより、構造的にシンプルで、取り扱いが容易で、照明器具等としての機能を最大限に発揮することができる。
また、ライン光源として、複数の発光装置を連結させて用いる場合においても、光が途切れず、連続的に均一に照明することができる。 According to the present invention, it is possible to realize indoor and outdoor lighting devices that have no color unevenness, excellent color mixing, and are more compact and lighter in design. Thereby, it is structurally simple, is easy to handle, and can exhibit its functions as a lighting fixture to the maximum.
Further, even when a plurality of light emitting devices are connected and used as a line light source, the light is not interrupted and can be continuously and uniformly illuminated.

本発明の発光装置の実施の形態を以下に詳細に説明する。
実施の形態１
図１の分解斜視図ならびに図２（ａ）の側面図、図２（ｂ）の背面図、図２（ｃ）の端面図及び図２（ｄ）の下側からの斜視図に示すように、この実施の形態の発光装置１０は、主として、ベース１１、任意に熱伝導性シート１５、発光素子１３が搭載された基板１２、レンズ１４がこの順に組み合わせられて構成されている。 Embodiments of the light emitting device of the present invention will be described in detail below.
Embodiment 1
As shown in the exploded perspective view of FIG. 1, the side view of FIG. 2 (a), the rear view of FIG. 2 (b), the end view of FIG. 2 (c), and the perspective view from the lower side of FIG. The light-emitting device 10 of this embodiment is mainly configured by combining a base 11, optionally a heat conductive sheet 15, a substrate 12 on which a light-emitting element 13 is mounted, and a lens 14 in this order.

ベース１１は、通常、熱伝導性が良好な材料、例えば、板状のアルミニウム又はアルミニウム合金等によって、長手方向に延長した形状に形成されている。このベース１１は、平坦な板のままであってもよいし、例えば、板をコの字状に屈曲加工等した形状であってもよい。コの字状等の形状により、ベース１１と外気との接触面積を確保し、発光装置の放熱性を向上させることができるとともに、ベース１１の厚みが非常に薄く形成される場合においても、ベース１１自体の強度を確保することができる。ただし、ベース１１の形状は、特に限定されるものではなく、光観測面に対する側面がテーパ及び逆テーパ状に形成されていてもよいし、側面１１ｂが一方のみしか存在しないか、全く存在しない形状等であってもよい。   The base 11 is usually formed in a shape extending in the longitudinal direction from a material having good thermal conductivity, for example, plate-like aluminum or aluminum alloy. The base 11 may be a flat plate or may have a shape obtained by bending a plate into a U-shape, for example. The U-shaped or the like can secure the contact area between the base 11 and the outside air, improve the heat dissipation of the light emitting device, and the base 11 can be formed even when the base 11 is very thin. 11 itself can be secured. However, the shape of the base 11 is not particularly limited, and the side surface with respect to the light observation surface may be formed in a tapered shape and an inversely tapered shape, or only one side surface 11b exists or does not exist at all. Etc.

また、ベース１１には、後述する基板１２に連結するコネクタ１２ｂ、１２ｃを、ベース１１の背面（光観測面に対する裏面側）に取り出すことができるように、それぞれのコネクタ１２ｂ、１２ｃに対応する位置に窓１１ｃが形成されている。これにより、配線等の発光装置の電源供給手段を背面に設置することができ、光観測面側から見た発光装置をより細型構造とすることができる。   Further, in the base 11, connectors 12b and 12c connected to a substrate 12 to be described later are positions corresponding to the connectors 12b and 12c so that the back surface of the base 11 (the back side with respect to the light observation surface) can be taken out. A window 11c is formed in the window. Thereby, the power supply means of the light-emitting device such as wiring can be installed on the back surface, and the light-emitting device viewed from the light observation surface side can have a more narrow structure.

さらに、ベース１１には、後述するレンズ１４に形成された取付部１４ｅに対応する位置に、この取付部１４ｅを係止するための係止部１１ｄが形成されている。この係止部１１ｄの形状は、取付部１４ｅの形状によって任意の形状とすることができ、例えば、上述したコネクタ１２ｂ、１２ｃを取り出すための窓１１ｃの縁部を係止部１１ｄとして用いてもよいし、さらに、そのような縁部に、取付部１４ｅの形状に対応した突起等を形成してもよい。取付部１４ｅとそれに対応する係止部１１ｄを形成することにより、発光装置の組立てにおいて螺子等の固定部材を別途用いることなく、簡便かつ容易に発光装置を組み立てることができる。
また、ベース１１には、後述するレンズ１４に形成された位置合わせ用の突部１４ｄに対応する位置に、穴１１ａ、つまり貫通孔又は凹部が形成されていることが好ましい。この穴の数は特に限定されるものではなく、１以上、通常２、３箇所に形成されていればよい。 Further, the base 11 is formed with a locking portion 11d for locking the mounting portion 14e at a position corresponding to a mounting portion 14e formed on the lens 14 described later. The shape of the locking portion 11d can be any shape depending on the shape of the mounting portion 14e. For example, the edge portion of the window 11c for taking out the connectors 12b and 12c described above may be used as the locking portion 11d. Further, a protrusion or the like corresponding to the shape of the attachment portion 14e may be formed on such an edge portion. By forming the attachment portion 14e and the corresponding locking portion 11d, the light emitting device can be easily and easily assembled without using a fixing member such as a screw in the assembly of the light emitting device.
The base 11 is preferably formed with a hole 11a, that is, a through hole or a recess, at a position corresponding to an alignment protrusion 14d formed on the lens 14 described later. The number of holes is not particularly limited, and may be one or more, usually two or three.

基板１２は、長手方向に延長した形状に形成されていることが好ましく、長手方向に複数の発光素子１３を、好ましくはライン状に載置している。基板１２は、発光素子１３を搭載し、その表面及び／又は背面に、発光素子１３を発光させるための配線、配線パターン、異なる素子の搭載等、当該分野で公知の手段が施されている。   The substrate 12 is preferably formed in a shape extending in the longitudinal direction, and a plurality of light emitting elements 13 are preferably placed in a line shape in the longitudinal direction. The substrate 12 has the light emitting element 13 mounted thereon, and on the front surface and / or back surface thereof, means known in the field such as wiring for causing the light emitting element 13 to emit light, a wiring pattern, and mounting of different elements are applied.

この基板１２には、その背面であって、基板１２の中央に連結され、基板１２に搭載された発光素子１３に電源を供給するための電源用コネクタ１２ｃと、基板１２の両端に連結され、この基板１２に搭載された発光素子に信号を送るための信号用コネクタ１２ｂとが配置されている。各コネクタ１２ｂ、１２ｃは、当該分野で通常知られている形状及び機能を有しているものであれば特に限定されるものではない。   The substrate 12 is connected to the center of the substrate 12 on the back surface thereof, to a power connector 12c for supplying power to the light emitting element 13 mounted on the substrate 12, and to both ends of the substrate 12, A signal connector 12b for sending a signal to the light emitting element mounted on the substrate 12 is disposed. Each connector 12b, 12c is not particularly limited as long as it has a shape and function normally known in the art.

また、図５に示すように、発光装置を、ライン光源として複数連結させて外部へ実装する場合、各コネクタ１２ｂ、１２ｃが干渉しないように孔が設けられたアルミなどからなる金属板１７を用いることが好ましい。これにより、ベース１１からの熱をベース１１全体から金属板１７を介して外部へ放熱することができる。図６は、図５の平面側斜視図を示す。隣り合う信号用コネクタ１２ｂは、信号線わたりケーブル１８にて接続され、各電源用コネクタ１２ｃは、分岐コネクタ２１を介して電源本線ライン２０に接続される。本発明の発光装置では、各コネクタ１２ｂ、１２ｃが背面側に取り付けられていることから、すべてのケーブルを背面側に配置し、体裁がよく、取り扱いが容易となる。   Also, as shown in FIG. 5, when a plurality of light emitting devices are connected as line light sources and mounted outside, a metal plate 17 made of aluminum or the like provided with holes so that the connectors 12b and 12c do not interfere with each other is used. It is preferable. Thereby, the heat from the base 11 can be radiated to the outside through the metal plate 17 from the entire base 11. FIG. 6 shows a plan side perspective view of FIG. Adjacent signal connectors 12 b are connected by signal line crossover cables 18, and each power supply connector 12 c is connected to the main power supply line 20 via the branch connector 21. In the light emitting device of the present invention, since the connectors 12b and 12c are attached to the back side, all the cables are arranged on the back side, the appearance is good, and the handling is easy.

基板１２には、ベース１１と同様に、後述するレンズ１４に形成された位置合わせ用の突部１４ｄに対応する位置に、貫通孔１２ａが形成されていることが好ましい。
基板１２に搭載される発光素子１３は、いわゆる発光ダイオードと呼ばれる半導体素子であれば特に限定されるものではなく、当該分野で使用されているもののいずれをも使用することができる。また、発光素子自体（パッケージ、被覆部材等）に波長変換部材（例えば、蛍光体等）、拡散剤等が含有されていてもよい。また、発光素子として、２in１、３in１等、複数のチップが搭載されたパッケージを用いてもよい。特に、ＲＢＧに対応したフルカラーのパッケージを用いることにより、単色の発光素子を用いる場合よりも、混色性を向上させることができる。 Similarly to the base 11, the substrate 12 is preferably formed with a through hole 12 a at a position corresponding to an alignment protrusion 14 d formed on a lens 14 described later.
The light emitting element 13 mounted on the substrate 12 is not particularly limited as long as it is a semiconductor element called a so-called light emitting diode, and any of those used in the field can be used. In addition, the light emitting element itself (package, covering member, etc.) may contain a wavelength conversion member (for example, a phosphor, etc.), a diffusing agent, and the like. Further, a package in which a plurality of chips such as 2 in 1 and 3 in 1 are mounted may be used as the light emitting element. In particular, by using a full-color package corresponding to RBG, the color mixing property can be improved as compared with the case of using a single color light emitting element.

発光素子１３は、基板１２上に、複数個、等間隔で配置されていることが好ましい。これにより、均一な光の分布を実現することができる。さらに、発光装置の両端に位置する発光素子は、レンズ１４の端面までの距離が、その隣接する発光素子までの距離の略１／２であることが好ましい。これにより、発光装置をライン状に複数連結する場合に、隣接する発光装置同士は、２つの発光装置の切欠部１４ｂ及び鍔部１４ｃを連結することにより、１つの固定部材１４ａで隙間なく配置されるために、ライン全長にわたって発光素子１３が等間隔で配置されることとなり、光の途切れを防止することができる。   A plurality of light emitting elements 13 are preferably arranged on the substrate 12 at equal intervals. Thereby, a uniform light distribution can be realized. Furthermore, it is preferable that the light emitting elements located at both ends of the light emitting device have a distance to the end face of the lens 14 that is approximately ½ of the distance to the adjacent light emitting elements. Accordingly, when a plurality of light emitting devices are connected in a line shape, adjacent light emitting devices are arranged without gaps by one fixing member 14a by connecting the notch portion 14b and the flange portion 14c of the two light emitting devices. Therefore, the light emitting elements 13 are arranged at equal intervals over the entire length of the line, and light interruption can be prevented.

レンズ１４は、長手方向においてベース１１及び基板１２よりも長尺で、ベース１１及び基板１２を被覆するように形成されている。
レンズ１４は、長手方向の両端部に固定部１４ａを有している。固定部１４ａは、レンズ１４を外部に固定するために利用される部位であるが、この固定部１４ａ自体がレンズ機能を有しているか、レンズ１４に対して悪影響を与えない構成であることが好ましい。 The lens 14 is longer than the base 11 and the substrate 12 in the longitudinal direction, and is formed so as to cover the base 11 and the substrate 12.
The lens 14 has fixed portions 14a at both ends in the longitudinal direction. The fixing portion 14a is a part used for fixing the lens 14 to the outside. However, the fixing portion 14a itself has a lens function or a configuration that does not adversely affect the lens 14. preferable.

固定部１４ａは、レンズ１４と同じ材料によって、レンズ１４と一体的に形成されていることが好ましい。部品数を低減させ、安価でかつ組立てを容易とするためである。
固定部１４ａは、少なくとも切欠部１４ｂを備えている。切欠部１４ｂは、レンズ１４を外部（例えば、壁、天井等）に固定するための固定部材（例えば、螺子、釘等）（図示せず）を挿入することができるような形状を有している。例えば、貫通孔の一部（例えば、貫通孔の縦半割の一方等）を構成する。つまり、切欠部１４ｂは、２つの発光装置の固定部を隣接させた場合に、略完全な貫通孔を構成できるような形状を切り欠いた部位であることが好ましい。ここでの貫通孔は、円形が好ましいが、楕円、多角形、これらに近似する形状であってもよい。また、切欠部及び貫通孔の大きさは特に限定されず、発光装置の大きさ、重量等によって、発光装置を固定させるために十分な力を確保することができる固定部材を挿入することができる大きさに対応するものであることが好ましい。 The fixing portion 14 a is preferably formed integrally with the lens 14 using the same material as the lens 14. This is because the number of parts is reduced, and it is inexpensive and easy to assemble.
The fixing portion 14a includes at least a notch portion 14b. The notch 14b has a shape that allows a fixing member (for example, a screw, a nail, etc.) (not shown) for fixing the lens 14 to the outside (for example, a wall, a ceiling, etc.) to be inserted. Yes. For example, a part of the through hole (for example, one of the longitudinal halves of the through hole) is formed. That is, it is preferable that the notch portion 14b is a portion where a shape that can form a substantially complete through hole is formed when the fixing portions of the two light emitting devices are adjacent to each other. The through hole here is preferably circular, but may be an ellipse, a polygon, or a shape similar to these. The size of the notch and the through hole is not particularly limited, and a fixing member that can secure a sufficient force for fixing the light emitting device can be inserted depending on the size, weight, etc. of the light emitting device. It is preferable that the size corresponds to the size.

また、切欠部１４ｂは、その内周に鍔部１４ｃが形成されていることが好ましい。鍔部１４ｃは、固定部材の一部（例えば、頭等）に係合して、レンズ１４を外部に強固に押し付ける機能を有する。したがって、この鍔部１４ｃも、切欠部１４ｂと同様に、環状、例えば、ドーナツ状の鍔が半割された形状である。鍔部１４ｃの幅及び厚みは、上述したように、固定部材によって発光装置を強固に押し付けることができる力を確保することができるものとするものが好ましい。   Moreover, it is preferable that the collar part 14c is formed in the inner periphery of the notch part 14b. The collar portion 14c has a function of firmly engaging the lens 14 to the outside by engaging with a part (for example, the head) of the fixing member. Therefore, like the notch portion 14b, the flange portion 14c has a shape in which an annular, for example, donut-shaped flange is divided in half. As described above, it is preferable that the width and thickness of the flange portion 14c can secure a force capable of firmly pressing the light emitting device with the fixing member.

このように、レンズ１４が、固定部１４ａとして、切欠部１４ｂ、任意に鍔部１４ｃを備えることにより、レンズ１４自体を外部に直接固定することができる。これにより、発光装置１０の最も外側から、発光装置１０を構成する各部材を確実かつ安定に固定することができる。加えて、近年におけるベースの薄膜化に対応して、ベースからレンズに固定部を変更することで、発光装置自体の小型化及び簡素化を実現することができる。また、切欠部１４ｂ、任意に鍔部１４ｃが、貫通孔（及びその鍔部）を半割した形状とすることにより、この発光装置をライン状に２つ連結する場合に、一方の発光装置の一端の切欠部（及び鍔部）と、他方の発光装置の他端の切欠部（及び鍔部）とで、略完全な貫通孔（及び鍔部）を形成することになる。その結果、隣接する発光装置のレンズが隙間なく配置されることになり、光の途切れを防止することができるとともに、隣接する２つの発光装置を、同時に１つの固定部材で固定することができる（図５中、１６参照）。さらに、貫通孔でなく切欠部とすることにより、発光装置を外部（例えば、壁）に固定する際に、発光装置自体を壁の所定の箇所に配置し、位置合わせし、固定部材（例えば、螺子）で固定するという取付け工程を、まず、螺子等をある程度まで壁に配置／挿入して、位置合わせをし、その後に壁に固定した螺子に切欠部を挿入し、発光装置が壁に固定されるまで螺子を締める工程に変更することができ、簡便かつ容易に、位置合わせ精度が良好に、発光装置を壁等に取り付けることが可能となる。   As described above, the lens 14 includes the notch portion 14b and optionally the flange portion 14c as the fixing portion 14a, so that the lens 14 itself can be directly fixed to the outside. Thereby, each member which comprises the light-emitting device 10 can be reliably and stably fixed from the outermost side of the light-emitting device 10. In addition, corresponding to the recent thinning of the base, the light emitting device itself can be reduced in size and simplified by changing the fixing portion from the base to the lens. In addition, when the cutout portion 14b, and optionally the flange portion 14c, have a shape in which the through hole (and its flange portion) is halved, when two light emitting devices are connected in a line, one of the light emitting devices A substantially complete through-hole (and collar) is formed by the notch (and collar) at one end and the notch (and collar) at the other end of the other light emitting device. As a result, the lenses of the adjacent light emitting devices are arranged without a gap, so that the light can be prevented from being interrupted, and the two adjacent light emitting devices can be simultaneously fixed by one fixing member ( (See 16 in FIG. 5). Furthermore, when the light emitting device is fixed to the outside (for example, a wall) by using a notch portion instead of a through hole, the light emitting device itself is arranged at a predetermined position on the wall, aligned, First, the screw is fixed to the wall by placing / inserting the screw, etc., to some extent, aligning, and then inserting the notch into the screw fixed to the wall. The process can be changed to the process of fastening the screw until it is done, and the light emitting device can be attached to the wall or the like simply and easily with good alignment accuracy.

また、レンズ１４の固定部１４ａ、つまり、切欠部１４ｂ、任意に鍔部１４ｃは、ベース１１及び基板１２の長手方向に対向する一対の両端部のそれぞれよりも外側に配置していることが好ましい。これにより、ベース１１及び基板１２の位置に拘わらず、簡便にレンズ１４を外部に取り付けることができる。   Further, it is preferable that the fixing portion 14 a of the lens 14, that is, the notch portion 14 b, and optionally the flange portion 14 c are arranged outside the pair of both end portions facing in the longitudinal direction of the base 11 and the substrate 12. . Accordingly, the lens 14 can be easily attached to the outside regardless of the positions of the base 11 and the substrate 12.

例えば、本発明の発光装置１０を、光観測面の背面において壁又は天井等に固定する場合には、レンズ１４の切欠部１４は、光観測面から背面に向かって貫通していることが好ましい。さらに、切欠部１４ｂ内の鍔部１４ｃが、光観測面に対する背面側において、切欠部１４ｂ以外の固定部１４ａ、さらに好ましくはベースとも、略面一になるように形成されていることが好ましい（図２（ｄ）参照）。これにより、壁又は天井等の設置面に、発光装置１０の一面が隙間なく接触することとなり、強固に取り付けた場合においても、発光装置１０が変形又は破損すること防止することができる。特に、鍔部１４ｃが、固定部１４ａの背面側において固定部１４ａと、ベース１１の背面と、略面一とすることで、強固にレンズ１４、ひいては発光装置１０を壁等に取り付けることが可能となる。   For example, when the light emitting device 10 of the present invention is fixed to a wall or ceiling on the back surface of the light observation surface, it is preferable that the notch portion 14 of the lens 14 penetrates from the light observation surface toward the back surface. . Further, it is preferable that the flange portion 14c in the notch portion 14b is formed so as to be substantially flush with the fixing portion 14a other than the notch portion 14b, more preferably the base, on the back side with respect to the light observation surface ( (Refer FIG.2 (d)). Thereby, one surface of the light emitting device 10 comes into contact with an installation surface such as a wall or a ceiling without any gap, and even when the light emitting device 10 is firmly attached, the light emitting device 10 can be prevented from being deformed or damaged. In particular, since the collar portion 14c is substantially flush with the fixing portion 14a and the back surface of the base 11 on the back side of the fixing portion 14a, the lens 14 and thus the light emitting device 10 can be firmly attached to a wall or the like. It becomes.

また、レンズ１４は、光観測面の内側から背面側に延設された位置合わせ用の突部１４ｄを備えることが好ましい。これにより、基板１２及びベース１１等を適所に配置するように、簡便位置合わせしながら組み立てることができる。突部１４ｄの形状、長さ、大きさ、数等は特に限定されるものではなく、例えば、円柱状又は多角形柱状が適当であり、レンズ機能に悪影響を与えないような大きさであることが適している。また、ベース１１に届く長さであればよく、必ずしもベース１１を貫通する長さでなくてもよい。突部１４ｄは少なくとも１つあればよく、レンズ機能に悪影響を与えない程度に、２つ以上であってもよい。   Moreover, it is preferable that the lens 14 is provided with the protrusion 14d for alignment extended from the inner side of the light observation surface to the back side. As a result, the substrate 12 and the base 11 can be assembled while being simply positioned so as to be arranged in place. The shape, length, size, number, etc. of the protrusions 14d are not particularly limited. For example, a cylindrical shape or a polygonal columnar shape is appropriate, and the size does not adversely affect the lens function. Is suitable. Further, it may be a length that reaches the base 11, and may not necessarily be a length that penetrates the base 11. There may be at least one protrusion 14d, and there may be two or more so long as the lens function is not adversely affected.

さらに、レンズ１４は、光観測面に対する両側面に、上述したように、少なくともベース１１と着脱可能に噛み合って結合する取付部１４ｅを備えていることが好ましい。これにより、螺子などの別個の部材を用いずに、発光装置１０の組立てを実現することができる。また、本発明の発光装置では、ベース１１及び基板１２は、基本的に、外部に固定用の固定部材と係合又は接触するような部位を有していないため、これらがレンズ１４に連結する機構が形成されていることにより、発光装置１０の組立て及び固定をより確実に行うことができる。   Furthermore, it is preferable that the lens 14 includes attachment portions 14e that are engaged with and coupled to at least the base 11 on both sides of the light observation surface as described above. Thereby, the assembly of the light emitting device 10 can be realized without using a separate member such as a screw. Further, in the light emitting device of the present invention, the base 11 and the substrate 12 basically have no external part that engages or contacts with a fixing member for fixing, and therefore these are connected to the lens 14. By forming the mechanism, the light emitting device 10 can be more reliably assembled and fixed.

取付部１４ｅは、外側に向かって起曲した鉤部１４ｆを少なくとも１つ備えていることが好ましい。鉤部１４ｆの形状は、公知の同様の機能を有するもののすべてを利用することができる。この場合、上述したように、レンズ１４が、少なくともベース１１に、任意に後述する熱伝導性シート１５にも、係合することができるように、レンズ１４の鉤部１４ｆに対応する位置に、鉤部１４ｆを係止するための係止部１１ｄが配置されていることが好ましい。なお、係止部１１ｄは、必ずしも鉤部１４ｆと掛合する形状（例えば、鉤部と掛合する突起等）が形成されていなくてもよく、鉤部１４ｆが留まる凹部又は貫通孔等の形状であってもよい。   The mounting portion 14e preferably includes at least one flange portion 14f that bends outward. The shape of the collar part 14f can utilize all of what has the same known function. In this case, as described above, at a position corresponding to the flange portion 14f of the lens 14 so that the lens 14 can be engaged with at least the base 11 and optionally a heat conductive sheet 15 described later. It is preferable that a locking portion 11d for locking the flange portion 14f is disposed. The engaging portion 11d does not necessarily have a shape that engages with the flange portion 14f (for example, a protrusion that engages with the flange portion), and has a shape such as a recess or a through hole in which the flange portion 14f stays. May be.

レンズ１４は、光観測面側に光を導出することができる形状であれば、特にその形状は限定されない。例えば、光観測面側において、シリンドリカルレンズ形状又は９０°程度、好ましくは６０°程度の配光が実現する形状が好ましい。このような集光レンズを用いた場合には、光観測面正面の明るさを向上させることができる。なお、このような形状の場合には、ベース１１の高さ（図２（ａ）中、Ｈｂ）とレンズ１４の凸部の高さ（図２（ａ）中、Ｈｌ、ベース１１より上に突出した部位）とが、Ｈｂ＞Ｈｌの関係となるようにすることが好ましい。意図しない部分に影がでることを防止するためである。   The shape of the lens 14 is not particularly limited as long as it is a shape capable of deriving light to the light observation surface side. For example, on the light observation surface side, a cylindrical lens shape or a shape that realizes light distribution of about 90 °, preferably about 60 ° is preferable. When such a condensing lens is used, the brightness in front of the light observation surface can be improved. In the case of such a shape, the height of the base 11 (Hb in FIG. 2 (a)) and the height of the convex portion of the lens 14 (Hl in FIG. 2 (a), above the base 11). It is preferable that the protruding portion) has a relationship of Hb> Hl. This is to prevent shadows from appearing on unintended parts.

レンズ１４は、光透過性を有していればよい。ここでの光透過性は、１００％であることが好ましいが、混色、色むら等を考慮して、半透明及び不透明（例えば、光透過性が５０％程度以上、乳白色のもの等）のものであってもよい。   The lens 14 only needs to have optical transparency. The light transmission here is preferably 100%, but it is semi-transparent and opaque (for example, light transmission is about 50% or more, milky white, etc.) in consideration of color mixing, color unevenness, etc. It may be.

レンズ１４は、当該分野で公知の材料によって形成することができるが、例えば、軽量で、強度の強いプラスチックを用いることが好ましい。
また、レンズ１４は、光観測面に拡散部を備えていてもよい。ここで、拡散部とは、発光素子１３からの光を拡散し得る部分を意味し、レンズ１４と一体的に構成されていてもよいし、レンズ１４に他の部材を組み合わせて構成されていてもよい。例えば、レンズ１４の表面及び／又は背面（内側）に拡散シート（例えば、半透明及び乳白色樹脂製の厚さの薄いシート）を貼り付けてもよいし、レンズ１４の表面及び／又は背面にサンドブラスト、研磨等の粗面処理を施してもよい。さらに、レンズ１４を形成する材料自体に拡散剤（例えば、酸化シリコン等のフィラー等）を混入してもよい。これにより、混色性を特に向上させることができる。 The lens 14 can be formed of a material known in the art. For example, it is preferable to use a lightweight and strong plastic.
Further, the lens 14 may include a diffusing portion on the light observation surface. Here, the diffusion part means a part capable of diffusing light from the light emitting element 13, and may be configured integrally with the lens 14, or may be configured by combining the lens 14 with another member. Also good. For example, a diffusion sheet (for example, a thin sheet made of translucent and milky white resin) may be pasted on the surface and / or back surface (inside) of the lens 14, and sandblasting may be performed on the surface and / or back surface of the lens 14. A rough surface treatment such as polishing may be performed. Furthermore, a diffusing agent (for example, a filler such as silicon oxide) may be mixed in the material forming the lens 14 itself. Thereby, the color mixing property can be particularly improved.

さらに、本発明の発光装置は、ベース１１と基板１２との間に、熱伝導性シート１５を備えていることが好ましい。これにより、ベース１１自体が薄膜化、表面積低減化された場合においても、発光素子１３からの熱を、基板１２を介してこの熱伝導性シート１５に効率的に伝達し、外部に放出することができる。   Furthermore, the light emitting device of the present invention preferably includes a heat conductive sheet 15 between the base 11 and the substrate 12. Thereby, even when the base 11 itself is thinned and the surface area is reduced, the heat from the light emitting element 13 is efficiently transferred to the heat conductive sheet 15 through the substrate 12 and released to the outside. Can do.

熱伝導性シート１５は、例えば、１Ｗ／（ｍ・Ｋ）程度以上の熱伝導率を有し、かつ、絶縁性のものが好ましい。これにより、基板１２とベース１１との導通を防止し、発光素子１３間にてショートすることなく発光素子１３から発生する熱を効率的に逃がすことができる。具体的には、シリコーンゴム等により形成することができる。その厚み、形状及び大きさ等は、得ようとする発光装置の大きさ、形状等を考慮して適宜調整することができるが、基板１２と略同じ形状、同じ大きさであることが好ましい。   The heat conductive sheet 15 preferably has, for example, a thermal conductivity of about 1 W / (m · K) or more and is insulative. Thereby, the conduction between the substrate 12 and the base 11 can be prevented, and the heat generated from the light emitting element 13 can be efficiently released without causing a short circuit between the light emitting elements 13. Specifically, it can be formed of silicone rubber or the like. The thickness, shape, size, and the like can be appropriately adjusted in consideration of the size, shape, and the like of the light-emitting device to be obtained, but are preferably substantially the same shape and size as the substrate 12.

また、基板１２のコネクタ１２ｂに対応した位置に、窓１５ｂ、１５ｃが形成されていることが好ましい。また、レンズ１４の取付部１４ｅの鉤部１４ｆが接触しないように切欠部１５ｄが形成されていることが好ましい。   Moreover, it is preferable that the windows 15b and 15c are formed in the position corresponding to the connector 12b of the board | substrate 12. FIG. Moreover, it is preferable that the notch part 15d is formed so that the collar part 14f of the attaching part 14e of the lens 14 may not contact.

実施の形態２
この実施の形態２の発光装置２０は、図３（ａ）〜（ｄ）に示したように、レンズ２４が、光観測面において、平面形状であるか又はフラット配光が実現する形状に形成されている以外、実質的に実施の形態１と同様の構成である。
このようなレンズ形状の場合には、発光装置の側面において、レンズ２４が露出しない、つまり、ベース１１の側面１１ｂの上端面から突出しないことが好ましい。意図しない部分に影がでる等をなくして、良好な配光を確保するためである。 Embodiment 2
In the light emitting device 20 according to the second embodiment, as shown in FIGS. 3A to 3D, the lens 24 is formed in a planar shape or a shape that realizes a flat light distribution on the light observation surface. Except for this, the configuration is substantially the same as in the first embodiment.
In the case of such a lens shape, it is preferable that the lens 24 is not exposed on the side surface of the light emitting device, that is, does not protrude from the upper end surface of the side surface 11 b of the base 11. This is to ensure good light distribution by eliminating shadows from unintended parts.

実施の形態３
この実施の形態３の発光装置３０は、図４（ａ）〜（ｄ）に示したように、レンズ３４における固定部３４ａの向きが変更されている以外、実質的に実施の形態１と同様の構成である。
この発光装置３０では、固定部３４ａにおける切欠部３４ｂは、光観測面に対して交差する方向、例えば、直交する方向に向かって貫通している。さらに、切欠部３４ｂ内の鍔部３４ｃが、光観測面に対する側面側において、発光装置側面、例えば、切欠部３４ｂ以外の固定部３４ａ及び／又はベース１１の側面１１ｂと略面一に形成されている。 Embodiment 3
The light emitting device 30 of the third embodiment is substantially the same as the first embodiment except that the orientation of the fixing portion 34a in the lens 34 is changed as shown in FIGS. 4 (a) to 4 (d). It is the composition.
In the light emitting device 30, the notch 34 b in the fixed portion 34 a penetrates in a direction intersecting the light observation surface, for example, a direction orthogonal to the light observation surface. Further, the flange 34c in the notch 34b is formed substantially flush with the light emitting device side, for example, the fixing part 34a other than the notch 34b and / or the side 11b of the base 11 on the side of the light observation surface. Yes.

この発光装置３０を、光観測面の側面において壁又は天井等に固定する場合には、壁又は天井等の設置面に、発光装置の一面が隙間なく接触することにより、強固に取り付けた場合においても、発光装置が変形又は破損すること防止することができる。   In the case where the light emitting device 30 is fixed to a wall or ceiling on the side of the light observation surface, when one surface of the light emitting device is in contact with the installation surface such as the wall or ceiling without gaps, In addition, the light emitting device can be prevented from being deformed or damaged.

本発明は、照明装置のみならず、発光素子を用いた装置、特に、ライン状に発光素子を並列させて用いる光源として、種々の用途に用いることができる。   INDUSTRIAL APPLICABILITY The present invention can be used not only for lighting devices but also for various applications as a device using light emitting elements, particularly as a light source using light emitting elements arranged in a line.

本発明の発光装置の分解斜視図である。It is a disassembled perspective view of the light-emitting device of this invention. 本発明の発光装置の（ａ）側面図、（ｂ）背面図、（ｃ）端面図及び（ｄ）斜視図である。It is (a) side view, (b) rear view, (c) end view, and (d) perspective view of the light emitting device of the present invention. 本発明の別の発光装置の（ａ）側面図、（ｂ）背面図、（ｃ）端面図及び（ｄ）斜視図である。It is (a) side view, (b) rear view, (c) end view, and (d) perspective view of another light emitting device of the present invention. 本発明のさらに別の発光装置の（ａ）側面図、（ｂ）背面図、（ｃ）端面図及び（ｄ）斜視図である。It is (a) side view, (b) rear view, (c) end view, and (d) perspective view of still another light emitting device of the present invention. 本発明の発光装置をライン光源として実装する際の平面側模式的斜視図である。It is a plane side typical perspective view at the time of mounting the light-emitting device of the present invention as a line light source. 本発明の発光装置をライン光源として実装した際の背面側模式的斜視図である。It is a back side typical perspective view at the time of mounting the light-emitting device of the present invention as a line light source.

符号の説明Explanation of symbols

１０、２０、３０ 発光装置
１１ ベース
１１ａ 穴
１１ｂ 側面
１１ｃ、１５ｂ、１５ｃ 窓
１１ｄ、１５ｄ 係止部
１２ 基板
１２ａ、１５ａ 貫通孔
１２ｂ 信号用コネクタ
１２ｃ 電源用コネクタ
１３ 発光素子
１４、２４、３４ レンズ
１４ａ、２４ａ、３４ａ 固定部
１４ｂ、２４ｂ、３４ｂ 切欠部
１４ｃ、２４ｃ、３４ｃ 鍔部
１４ｄ 突起
１４ｅ 取付部
１４ｆ、２４ｆ、３４ｆ 鉤部
１５ 熱伝導性シート
１６ 取付ネジ
１７ 金属板
１８ 信号線わたりケーブル
１９ 入力信号ケーブル
２０ 電源本線ライン
２１ 分岐コネクタ 10, 20, 30 Light emitting device 11 Base 11a Hole 11b Side surface 11c, 15b, 15c Window 11d, 15d Locking portion 12 Substrate 12a, 15a Through hole 12b Signal connector 12c Power supply connector 13 Light emitting element 14, 24, 34 Lens 14a , 24a, 34a Fixing portion 14b, 24b, 34b Notch portion 14c, 24c, 34c Hook portion 14d Projection 14e Mounting portion 14f, 24f, 34f Hook portion 15 Thermal conductive sheet 16 Mounting screw 17 Metal plate 18 Signal line crossing cable 19 Input Signal cable 20 Main power line 21 Branch connector

Claims (12)

ベースと、長手方向に複数の発光素子が搭載された基板と、長手方向において前記ベース及び基板よりも長尺で、かつ前記ベース及び基板を被覆するレンズとがこの順に積層されて構成される発光装置であって、
前記レンズは、長手方向に対向する一対の両端部に、前記レンズを外部に固定するための固定部を構成する切欠部を備えることを特徴とする発光装置。 A light emission composed of a base, a substrate on which a plurality of light emitting elements are mounted in the longitudinal direction, and a lens that is longer than the base and the substrate in the longitudinal direction and that covers the base and the substrate are stacked in this order. A device,
The light emitting device according to claim 1, wherein the lens includes a notch portion constituting a fixing portion for fixing the lens to the outside at a pair of both end portions facing in the longitudinal direction. 前記切欠部は、該切欠部の内周に鍔部を備える請求項１に記載の発光装置。   The light emitting device according to claim 1, wherein the notch includes a flange on an inner periphery of the notch. 前記固定部は、レンズと同じ材料によって一体的に形成されてなる請求項１又は２に記載の発光装置。   The light emitting device according to claim 1, wherein the fixing portion is integrally formed of the same material as the lens. 前記切欠部は、貫通孔を半割した形状である請求項１〜３のいずれか１つに記載の発光装置。   The light-emitting device according to claim 1, wherein the notch has a shape in which a through hole is divided in half. さらに、前記ベースと基板との間に熱伝導性シートを備える請求項１〜４のいずれか１つに記載の発光装置。   Furthermore, the light-emitting device as described in any one of Claims 1-4 provided with a heat conductive sheet between the said base and a board | substrate. 前記ベース及び基板は、長手方向の両端部がレンズの両端部における固定部の内側に配置し、前記切欠部は、光観測面から背面に向かって貫通してなる請求項１〜５のいずれか１つに記載の発光装置。   The base and the substrate are arranged at both ends in the longitudinal direction inside the fixed portion at both ends of the lens, and the cutout portion penetrates from the light observation surface toward the back surface. The light emitting device according to one. 前記ベース及び基板は、長手方向の両端部がレンズの両端部における固定部の内側に配置し、前記切欠部は、光観測面に対して交差する方向に向かって貫通してなる請求項１〜６のいずれか１つに記載の発光装置。   The base and the substrate are arranged such that both ends in the longitudinal direction are disposed inside the fixed portion at both ends of the lens, and the notch penetrates in a direction intersecting the light observation surface. 6. The light emitting device according to any one of 6. 前記基板に連結し、該基板に搭載された発光素子に電源を供給するためのコネクタが、光観測面に対する背面側に配置されてなる請求項１〜７のいずれか１つに記載の発光装置。   The light-emitting device according to claim 1, wherein a connector that is connected to the substrate and supplies power to a light-emitting element mounted on the substrate is disposed on the back side of the light observation surface. . 前記レンズは、光観測面の内側から背面側に延設された位置合わせ用の突部を備え、前記基板及びベースの対応する位置に、前記位置合わせ用突部を通す穴を有する請求項１〜８のいずれか１つに記載の発光装置。   The lens includes an alignment projection extending from the inner side of the light observation surface to the rear side, and has a hole through which the alignment projection passes at a corresponding position of the substrate and the base. The light-emitting device as described in any one of -8. 前記レンズは、光観測面に対する両側面に、少なくともベースと着脱可能に噛み合って結合する取付部を備え、該取付部は、内側に起曲した鉤部を備え、かつ前記ベースは、レンズの鉤部に対応する位置に、鉤部を係止するための係止部が配置されてなる請求項１〜９のいずれか１つに記載の発光装置。   The lens includes attachment portions that are detachably engaged with and coupled to the base on both side surfaces of the light observation surface, the attachment portion includes a flange portion bent inward, and the base includes a lens flange. The light-emitting device according to claim 1, wherein a locking portion for locking the collar portion is disposed at a position corresponding to the portion. 前記レンズは、シリンドリカルレンズ形状又は平面形状である請求項１〜１０のいずれか１つに記載の発光装置。   The light emitting device according to claim 1, wherein the lens has a cylindrical lens shape or a planar shape. 前記レンズは、光観測面に拡散部を備える請求項１〜１１のいずれか１つに記載の発光装置。   The light emitting device according to claim 1, wherein the lens includes a diffusing portion on a light observation surface.
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