JP2014135118A - Lighting device - Google Patents
Lighting device Download PDFInfo
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- JP2014135118A JP2014135118A JP2011100475A JP2011100475A JP2014135118A JP 2014135118 A JP2014135118 A JP 2014135118A JP 2011100475 A JP2011100475 A JP 2011100475A JP 2011100475 A JP2011100475 A JP 2011100475A JP 2014135118 A JP2014135118 A JP 2014135118A
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- light source
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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
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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- 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
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
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- 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
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
- F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
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- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/89—Metals
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- 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)
Abstract
Description
本発明は、照明装置に関するものである。 The present invention relates to a lighting device.
近年、照明装置には横断面形状が円形状のものを始め、矩形状、八角形状など様々な形状のものが提案されており、照明装置のデザインが重視されている。加えて、照明装置の形状に合わせて、照度の均一性が求められている。ここで横断面形状とは、照明装置の照射方向に対して垂直な平面での断面形状を示す。 In recent years, lighting devices having various shapes such as a rectangular shape and an octagonal shape have been proposed, including a circular cross-sectional shape, and the design of the lighting device is emphasized. In addition, uniformity of illuminance is required in accordance with the shape of the lighting device. Here, the cross-sectional shape refers to a cross-sectional shape in a plane perpendicular to the irradiation direction of the illumination device.
また、照明装置の省電力化が求められており、光源として発光ダイオード（以下、ＬＥＤとする。）を採用した照明装置が提案されている。ＬＥＤは点光源であり、横断面形状が多角形の照明装置に比べて円形状の照明装置の方が、より簡単に照度を均一にすることができるため、横断面形状が円形状である照明装置が数多く提案されている。 Further, there is a demand for power saving of the lighting device, and a lighting device that employs a light emitting diode (hereinafter referred to as LED) as a light source has been proposed. The LED is a point light source, and the illumination device having a circular cross-sectional shape can make the illuminance uniform more easily than the illumination device having a polygonal cross-sectional shape. Many devices have been proposed.
横断面形状が矩形状であり、光源をＬＥＤとする照明装置の一例としては、特許文献１のような液晶表示装置のバックライトがある。特許文献１では、矩形状の照明装置の側面にＬＥＤを備えた光源基板を配置し、底面に配置した反射面にＬＥＤの光が照射され、その反射光により照度の均一化を実現している。 As an example of an illuminating device having a rectangular cross-sectional shape and an LED as a light source, there is a backlight of a liquid crystal display device as in Patent Document 1. In Patent Document 1, a light source substrate including LEDs is arranged on the side surface of a rectangular lighting device, and the light from the LEDs is irradiated to the reflecting surface arranged on the bottom surface, and the illuminance is uniformed by the reflected light. .
また、特許文献２では、導光板を用いることにより、ＬＥＤを備えた光源基板の近傍に配置した導光板内にＬＥＤの光を導光させることにより、横断面形状が矩形状であっても照度の均一化を実現している。 Further, in Patent Document 2, by using a light guide plate, the light of the LED is guided into the light guide plate arranged in the vicinity of the light source substrate provided with the LEDs, so that the illuminance is obtained even if the cross-sectional shape is rectangular. Has been realized.
しかしながら、特許文献１の照明装置では、照明装置の発光面の前方を均一に照らすことは可能であるが、発光面の外周まで照らすことができない。特に、特許文献１の構成では、照明装置の側面部にＬＥＤを備えた光源基板を配置しているため、ＬＥＤの後背部である発光面の外周を照らすことは困難である。 However, in the illumination device of Patent Document 1, it is possible to uniformly illuminate the front of the light emitting surface of the illumination device, but it is not possible to illuminate the outer periphery of the light emitting surface. In particular, in the configuration of Patent Document 1, since the light source substrate including the LEDs is arranged on the side surface portion of the lighting device, it is difficult to illuminate the outer periphery of the light emitting surface that is the rear portion of the LEDs.
また、特許文献２の照明装置では、導光板の発光面の前方を均一に照らすことは可能であるが、発光面の外周まで照らすことは考慮されていない。 Moreover, in the illuminating device of patent document 2, although it is possible to illuminate the front of the light emission surface of a light-guide plate uniformly, it does not consider illuminating to the outer periphery of a light emission surface.
特に照明装置では、デザインが重視されており様々な横断面形状に対応した照明装置が要求されている。さらに、照明装置の発光面の前方を均一に照らすだけでなく、その外周まで照らし、広い空間を照らすことが要求されている。特に天井に設けられる照明装置では、発光面の外周で、天井を照らすことで、より広い空間を印象付けることが重要視されている。特許文献１および特許文献２では、そうした発光面の外周まで照らすことが考慮されておらず、さらに天井に設けた場合に天井を照らすことまで考慮されていない。 Particularly in the lighting device, design is emphasized, and lighting devices corresponding to various cross-sectional shapes are required. Furthermore, it is required not only to uniformly illuminate the front of the light emitting surface of the illuminating device, but also to illuminate the outer periphery of the illuminating device to illuminate a wide space. In particular, in an illuminating device provided on the ceiling, it is important to impress a wider space by illuminating the ceiling on the outer periphery of the light emitting surface. In Patent Document 1 and Patent Document 2, it is not considered to illuminate the outer periphery of such a light emitting surface, and further, it is not considered to illuminate the ceiling when it is provided on the ceiling.
本発明は、上記の課題を鑑みてなされたものであり、その目的は、光源として発光素子を用いた照明装置において、横断面形状に関係なく、発光面の前方を照らすことに加え、外周のある領域も照らすことのできる照明装置を提供することにある。 The present invention has been made in view of the above-described problems, and the object of the present invention is to illuminate the front of the light emitting surface in an illuminating device using a light emitting element as a light source, regardless of the cross-sectional shape. An object of the present invention is to provide an illumination device that can also illuminate a certain area.
本発明に係る照明装置は、複数の光源モジュールと、前記光源モジュールに対向し、かつ前記光源モジュールからの光を異なる方向へ変換する制御部材を備えて一定領域を照明する照明装置であって、光源モジュールは、複数の光源と、前記光源に対向し、かつ前記光源の光を透過する光学部材を含み、光路変換部が、隣接する前記光源モジュールの含む前記光源に対向して前記光学部材に設けられている。 An illuminating device according to the present invention is an illuminating device that illuminates a certain region with a plurality of light source modules and a control member that faces the light source modules and converts light from the light source modules in different directions, The light source module includes a plurality of light sources and an optical member that faces the light sources and transmits light from the light sources, and an optical path conversion unit faces the light sources included in the adjacent light source modules to the optical members. Is provided.
上記の構成によれば、発光素子を用いた照明装置で、光路変換部によって、発光面の前方を照らすとともに、外周のある領域も照らす照明装置とすることができる。 According to said structure, it can be set as the illuminating device which illuminates the area | region with an outer periphery while illuminating the front of a light emission surface with an optical path conversion part with the illuminating device using a light emitting element.
また、本発明に係る照明装置は、前記光源モジュールは、前記光源が同一直線状に配置され、前記光路変換部は２つ以上有しており、前記光路変換部は、前記光源モジュールの中心を通り、前期光源の配置方向に垂直な面に対して対称な位置で、かつ対称な形状で形成されている。 In the illumination device according to the present invention, the light source module includes the light sources arranged in a straight line, and has two or more optical path conversion units, and the optical path conversion unit has a center of the light source module. As described above, the first light source is formed in a symmetrical shape with respect to a plane perpendicular to the light source arrangement direction and in a symmetrical shape.
上記の構成によれば、発光素子を用いた照明装置で、光源モジュールで対称な位置に光路変換部を設けることによって、発光面の前方を照らすとともに、外周のある領域も照らす照明装置とすることができる。 According to said structure, it is set as the illuminating device which illuminates the area | region with an outer periphery while illuminating the front of a light emission surface by providing an optical path change part in the symmetrical position with a light source module by the illuminating device using a light emitting element. Can do.
また、本発明に係る照明装置は、前記光路変換部は、前記光源に対向し、かつ光学部材の切り欠きにより設けられている。 In the illuminating device according to the present invention, the optical path changing unit is provided by facing the light source and by a notch of the optical member.
上記の構成によれば、発光素子を用いた照明装置で、光源モジュールで対称な位置に切り欠きにより光路変換部を設けることによって、安価で、コンパクトな光路変換部とすることができ、発光面の前方を照らすとともに、外周のある領域も照らす照明装置とすることができる。 According to the above configuration, in the illumination device using the light emitting element, by providing the light path conversion unit by notching at a symmetrical position in the light source module, an inexpensive and compact light path conversion unit can be obtained. It can be set as the illuminating device which illuminates the area | region with an outer periphery while illuminating the front.
また、本発明に係る照明装置は、前記複数の光源に対向し、かつ前記光学部材の切り欠きにより設けた光路変換部と、光源の一部と重なる領域を有する切り欠きをさらに設けている。 Moreover, the illumination device according to the present invention further includes an optical path conversion unit that faces the plurality of light sources and is provided by the notch of the optical member, and a notch having a region that overlaps a part of the light source.
上記の構成によれば、発光素子を用いた照明装置で、光源モジュールで対称な位置に切り欠きにより光路変換部を設けることによって、安価で、コンパクトな光路変換部とすることができ、さらに光学モジュールの厚みを薄くすることができ、発光面の前方を照らすとともに、外周のある領域も照らす照明装置とすることができる。 According to the above configuration, in the illumination device using the light emitting element, by providing the optical path conversion unit by notching at a symmetrical position in the light source module, an inexpensive and compact optical path conversion unit can be obtained. The thickness of the module can be reduced, and a lighting device that illuminates the front of the light emitting surface and also illuminates a region with an outer periphery can be provided.
また、本発明に係る照明装置は、少なくとも３つの光源モジュールが隣接して配置され、光源モジュールに対向して制御部材を備え、前記光路変換部は、隣接する光源モジュールの光の方向が重なるように、光の方向を変換している。 In the illumination device according to the present invention, at least three light source modules are arranged adjacent to each other, and a control member is provided to face the light source modules, so that the light path conversion unit overlaps the light directions of the adjacent light source modules. The direction of light is changed.
上記の構成によれば、発光素子を用いた照明装置で、光源モジュールで対称な位置に切り欠きにより光路変換部を設けることによって、安価で、コンパクトな光路変換部とすることができ、さらに光学モジュールの厚みを薄くすることができる。さらに光源モジュールの隣接する光源からの光が重なるように光の方向を変換することにより、発光面の前方を照らすとともに、外周のある領域も照らす照明装置とすることができる。 According to the above configuration, in the illumination device using the light emitting element, by providing the optical path conversion unit by notching at a symmetrical position in the light source module, an inexpensive and compact optical path conversion unit can be obtained. The thickness of the module can be reduced. Furthermore, by changing the direction of light so that light from adjacent light sources of the light source module overlaps, it is possible to illuminate the front of the light emitting surface and illuminate a region with an outer periphery.
本発明によれば、光源としてＬＥＤを用いた照明装置において、横断面形状に関係なく、発光面の前方を均一に照らすことに加え、外周のある領域も照らすことのできる照明装置を提供することができる。 According to the present invention, in an illuminating device using an LED as a light source, it is possible to provide an illuminating device capable of illuminating an area with an outer periphery in addition to uniformly illuminating the front of the light emitting surface regardless of the cross sectional shape. Can do.
〔実施の形態１〕
以下、本発明の照明装置における実施の形態１について、図１から図３を用いて説明する。図１は、実施の形態１における照明装置の下から見た下面図（ａ）および断面図（ｂ）を示している。また、図２は、実施の形態１における照明装置を構成する光源モジュールの概略図を示している。
[Embodiment 1]
Hereinafter, Embodiment 1 in the illuminating device of this invention is demonstrated using FIGS. 1-3. FIG. 1 shows a bottom view (a) and a cross-sectional view (b) as viewed from the bottom of the lighting device in the first embodiment. FIG. 2 is a schematic diagram of a light source module that constitutes the illumination device according to the first embodiment.
図１の照明装置１は、光源モジュール２と、その周囲を囲むように設けた外部材３に制御部材４を備えた構成となっており、光源モジュール２の点灯制御により、光源モジュール２の光が制御部材４を経て、照明装置１を設ける空間領域を照明する構成となっている。 The illuminating device 1 in FIG. 1 has a configuration in which a control member 4 is provided on a light source module 2 and an outer member 3 provided so as to surround the periphery of the light source module 2. Is configured to illuminate a space area where the illumination device 1 is provided via the control member 4.
外部材３は、横断面形状が矩形である制御部材４を有しており、光源モジュール２の光は、制御部材４の側面方向に向かって照射されるように、外部材３の中央にある光源モジュールの保持部３ａに、光が横方向に出射して制御部材４に照射されるように配置する。 The external member 3 has a control member 4 having a rectangular cross-sectional shape, and the light from the light source module 2 is at the center of the outer member 3 so that the light is emitted toward the side surface of the control member 4. It arrange | positions so that light may radiate | emit to the holding | maintenance part 3a of a light source module, and may be irradiated to the control member 4.
外部材３に設けた制御部材４としては、反射機能を有しており、例えばアルミ板の上に白色の塗料を全面に塗ったものとしている。制御部材４の材料はアルミ板に限定されるものでなく、薄く強度の強い材料であればよい。また制御部材４は、アルミ板に白色の塗料を塗ることに限定されるものでなく、表面が白色であれば、白色の材料を用いても良い。制御部材４の表面は、白色の塗料を用いる場合、８５％以上の高い反射率を有し、散乱特性の高い塗料が好ましい。 The control member 4 provided on the external member 3 has a reflection function, and for example, a white paint is applied on the entire surface of an aluminum plate. The material of the control member 4 is not limited to the aluminum plate, and may be a thin and strong material. The control member 4 is not limited to applying a white paint on the aluminum plate, and a white material may be used as long as the surface is white. When a white paint is used on the surface of the control member 4, a paint having a high reflectance of 85% or more and a high scattering property is preferable.
光源モジュール２を取り付ける保持部３ａは、光源モジュール２で生じる熱を放熱する機能を高めるため、アルミ板など良い熱伝導性を持つ材料を使用することが好ましい。光源モジュール２は、外部材３の中央にある保持部３ａの四つの辺に対して略平行に四対配置された構成としている。 The holding part 3a to which the light source module 2 is attached is preferably made of a material having good thermal conductivity such as an aluminum plate in order to enhance the function of radiating heat generated in the light source module 2. The light source module 2 has a configuration in which four pairs are arranged substantially parallel to the four sides of the holding portion 3a at the center of the outer member 3.
光源モジュール２は、図２に示すように光源５と、光源５の出射光を制御する光学部材６から構成されている。 As shown in FIG. 2, the light source module 2 includes a light source 5 and an optical member 6 that controls light emitted from the light source 5.
光源５は、発光素子５ａと発光素子を配置した光源基板５ｂとからなっている。発光素子５ａとしては、例えば、発光ダイオード（以下、ＬＥＤとする。）や有機ＥＬ素子を用いる。また、光源基板５ｂは、複数の発光素子５ａを直線状に配置している。 The light source 5 includes a light emitting element 5a and a light source substrate 5b on which the light emitting elements are arranged. As the light emitting element 5a, for example, a light emitting diode (hereinafter referred to as LED) or an organic EL element is used. The light source substrate 5b has a plurality of light emitting elements 5a arranged in a straight line.
光学部材６は、光源５に対向して配置されており、光源５であるＬＥＤの全ての出射光が光学部材６に入射し、制御されるように配置する。また、光学部材６は、発光素子５ａに対向する位置に光路変換部７を設けて、光源基板５ｂに固定されている。 The optical member 6 is disposed so as to face the light source 5 and is disposed so that all the emitted light of the LED that is the light source 5 enters the optical member 6 and is controlled. The optical member 6 is fixed to the light source substrate 5b by providing an optical path conversion unit 7 at a position facing the light emitting element 5a.
光路変換部７は、それぞれの発光素子５ａの中心を通り、発光素子５ａの配置列方向に垂直且つ光源基板５ｂの面に垂直な面において非対称な三角凹面形状としている。また、光路変換部７の三角凹面形状の角部にあたるところは、角をなくすことにより、角部で起因するＬＥＤ配置列方向による照度むらを低減することが好ましい。また、角部の曲面としてはＲ１以上の緩やかな曲面にすることがより好ましい。 The optical path conversion unit 7 has a triangular concave shape that is asymmetrical in a plane that passes through the center of each light emitting element 5a and is perpendicular to the arrangement row direction of the light emitting elements 5a and perpendicular to the surface of the light source substrate 5b. Moreover, it is preferable to reduce the illuminance unevenness due to the LED arrangement row direction caused by the corners by eliminating the corners at the corners of the triangular concave surface of the optical path conversion unit 7. Further, it is more preferable that the curved surface of the corner is a gentle curved surface of R1 or more.
発光素子５ａの出射光は、光路変換部７の点線に示した面を透過し、図２の矢印に示す外向きに屈折する。発光素子５ａに対し、光路変換部７を有するような光学部材６を個別に配置した構成としても良いが、照明装置１に対する光学素子５ａの配置の簡便化のため、図２のように発光素子５ａの光源５の列に対して一対の光学部材６を備える方が好ましい。発光素子５ａの配置列方向には、光源基板５ｂの中心と光学部材６の中心とが略一致するよう配置しており、光路変換部７は、光学部材６の中心に対して対称な形状としている。対称な形状とすることで、光源５の出射光が、中心に対して外向き、且つ対称に屈折することができる。 The light emitted from the light emitting element 5a passes through the surface indicated by the dotted line of the optical path changing unit 7 and is refracted outward as indicated by the arrow in FIG. The optical member 6 having the optical path conversion unit 7 may be individually arranged with respect to the light emitting element 5a. However, in order to simplify the arrangement of the optical element 5a with respect to the illumination device 1, the light emitting element as shown in FIG. It is preferable to provide a pair of optical members 6 for the row of light sources 5 of 5a. In the arrangement row direction of the light emitting elements 5a, the center of the light source substrate 5b and the center of the optical member 6 are arranged to substantially coincide with each other, and the optical path conversion unit 7 has a symmetrical shape with respect to the center of the optical member 6. Yes. With the symmetrical shape, the light emitted from the light source 5 can be refracted outward and symmetrically with respect to the center.
光学部材６の材料としては、透明なアクリルを使用する。光学部材は、アクリルに限定されず、透過率の高い材料であれば、ポリカーボネイトなどを使用してもよい。 As the material of the optical member 6, transparent acrylic is used. The optical member is not limited to acrylic, and polycarbonate or the like may be used as long as the material has high transmittance.
光学部材６の効果について、図３を用いて説明する。図３は、実施の形態１の照明装置における光源モジュールに設けた光学部材の効果を示しており、（ａ）は光学部材がない場合、（ｂ）は光学部材がある場合を示している。 The effect of the optical member 6 will be described with reference to FIG. 3A and 3B show the effect of the optical member provided in the light source module in the lighting apparatus of the first embodiment. FIG. 3A shows the case where there is no optical member, and FIG. 3B shows the case where there is an optical member.
光学部材がない（ａ）では、光源５の正面を中心とした照度分布はグラフに示す通り、正面に位置する照度が高く、正面より外側に向かって照度が低下する照度分布となっている。 In (a) without an optical member, as shown in the graph, the illuminance distribution centered on the front surface of the light source 5 is an illuminance distribution in which the illuminance located at the front is high and the illuminance decreases from the front toward the outside.
一方、光学部材がある（ｂ）では、光学部材６を用いることにより光源５の正面より外側の位置においても照度を均一にすることができる。また光源基板５ｂより幅の広い領域においても、ＬＥＤ配置列方向の照度を均一にすることができる。 On the other hand, in (b) with an optical member, the illuminance can be made uniform even at a position outside the front surface of the light source 5 by using the optical member 6. Moreover, the illuminance in the LED arrangement row direction can be made uniform even in a region wider than the light source substrate 5b.
次に、本発明における照明装置１の照度分布について、図４および図５を用いて説明する。図４では、照明装置１において、光学部材６の効果を示している。図４（ａ）は、照明装置の光線進行方向を点線で示し、図４（ｂ）は、照度測定ラインＡにおける発光面下の照度分布をそれぞれ示している。 Next, the illuminance distribution of the lighting device 1 according to the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 shows the effect of the optical member 6 in the illumination device 1. 4A shows the light beam traveling direction of the illuminating device with a dotted line, and FIG. 4B shows the illuminance distribution under the light emitting surface in the illuminance measurement line A, respectively.
図４（ｂ）より、照明装置１の発光面下の照度分布は、矩形状の照明装置における四つ角部の照度が向上し、照明装置の横断面形状に合わせて照度の均一化ができていることが分かる。 As shown in FIG. 4B, the illuminance distribution under the light emitting surface of the illuminating device 1 improves the illuminance at the four corners of the rectangular illuminating device and makes the illuminance uniform according to the cross-sectional shape of the illuminating device. I understand that.
さらに図５では、本発明の照明装置１において天井の照度分布を示している。光線進行方向を点線で示し、照度測定ラインＡにおける照度分布を示している。本発明の照明装置１は全ての光源モジュール２を照明装置１の側面方向に向けて配置しているため、図５に示すように一部の光は天井の照明にも寄与させることができる。つまり、本発明の照明装置のように横断面形状が矩形形状である照明装置１において、発光面下の照度を均一化としつつ、さらにその外側である天井も照らすことができる。 Furthermore, in FIG. 5, the illumination distribution of the ceiling is shown in the illuminating device 1 of this invention. The light traveling direction is indicated by a dotted line, and the illuminance distribution in the illuminance measurement line A is indicated. Since all the light source modules 2 are arranged in the direction of the side surface of the lighting device 1 in the lighting device 1 of the present invention, a part of the light can contribute to the lighting of the ceiling as shown in FIG. That is, in the illuminating device 1 having a rectangular cross-sectional shape as in the illuminating device of the present invention, the illuminance below the light emitting surface can be made uniform and the outside ceiling can be illuminated.
本発明は以上に述べた実施の形態１に限定されない。実施の形態１では、３個のＬＥＤを備えた光源基板５ｂとしたが、１つの光源基板にＬＥＤを２個、あるいは４個以上備えていてもよく、また光学部材６に設けた光路変換部７も１つ以上であればよい。光源基板上５ｂのＬＥＤの数が多いほど、ＬＥＤ配置列方向の照度をより均一にすることが可能である。 The present invention is not limited to the first embodiment described above. In the first embodiment, the light source substrate 5b including three LEDs is used. However, the light source substrate 5b may include two or four or more LEDs on one light source substrate. 7 may be one or more. As the number of LEDs on the light source substrate 5b increases, the illuminance in the LED arrangement row direction can be made more uniform.
また、複数のＬＥＤを同一光源基板上に配置したが、複数の基板にまたがって、ＬＥＤが同一直線上に配置してもよい。その際、同一直線上に並んだ全てのＬＥＤの光が入射するよう、一対の光学部材６を配置することが、同様に照明装置１への光学部材６の配置の簡便化の都合好ましい。 Further, although the plurality of LEDs are arranged on the same light source substrate, the LEDs may be arranged on the same straight line across the plurality of substrates. At that time, it is preferable to arrange the pair of optical members 6 so that the lights of all the LEDs arranged on the same straight line are incident on the lighting device 1.
また、外部材３に設けた制御部材４の横断面形状が矩形形状だけでなく八角形状など多角形状であっても良い。例えば横断面形状が多角形状の場合、形状の辺の数に応じて、光源モジュール２の光源基板５ｂ、および光学部材６を一対ずつ備えることが好ましい。 Moreover, the cross-sectional shape of the control member 4 provided on the outer member 3 may be not only a rectangular shape but also a polygonal shape such as an octagonal shape. For example, when the cross-sectional shape is polygonal, it is preferable to provide a pair of the light source substrate 5b and the optical member 6 of the light source module 2 according to the number of sides of the shape.
さらに本発明の照明装置１は、室内用照明装置に限定されず、また、設置も天井のみに限定されない。光源５ａを有する光源基板５ｂ、光学部材６からなる光源モジュール２、外部材３に設けた制御部材４を拡散部材で覆った構成、光学部材６から制御部材４までの領域に内部を光が伝搬する導光部材を配置した構成としても、同様の効果や作用が生じる限りで、本発明に準ずるものである。
〔実施の形態２〕
本発明の照明装置の実施の形態２について、図６、図７および図８を用いて説明する。図６は本発明の照明装置における実施の形態１から派生した光学部材の斜視図、図７は、本発明の照明装置における実施の形態１とは異なる光学部材の上面図であり、図８は、本発明の照明装置における実施の形態１とは異なる光学部材のさらに別の構成についての上面図である。
図６は、実施の形態１の光学部材６の光路変換部７を設けた後背側の面に、ＬＥＤ配置列方向に対して垂直に、光の放射角度を狭くする構造を新たに設けている。その他の構成については、実施の形態１と同等としている。光学部材６は、光路変換部７を設けた後背側の面において、凸面の円柱レンズ形状８、およびテーパ部９を備えている。円柱レンズの高さ方向は、ＬＥＤ配置列方向に対して略平行に設ける。
Furthermore, the illuminating device 1 of this invention is not limited to an indoor illuminating device, and installation is not limited only to a ceiling. A light source substrate 5b having a light source 5a, a light source module 2 comprising an optical member 6, a control member 4 provided on the outer member 3 is covered with a diffusing member, and light propagates in the region from the optical member 6 to the control member 4. Even if the light guide member to be arranged is provided, the same effects and functions as those of the present invention are applied as long as the same effects and operations are produced.
[Embodiment 2]
Embodiment 2 of the lighting device according to the present invention will be described with reference to FIGS. 6, 7, and 8. FIG. 6 is a perspective view of an optical member derived from the first embodiment in the illumination device of the present invention, FIG. 7 is a top view of an optical member different from the first embodiment in the illumination device of the present invention, and FIG. FIG. 10 is a top view of still another configuration of the optical member different from Embodiment 1 in the illumination device of the present invention.
In FIG. 6, a structure for narrowing the light emission angle is newly provided on the back surface of the optical member 6 of the first embodiment where the optical path conversion unit 7 is provided, perpendicular to the LED arrangement row direction. . Other configurations are the same as those in the first embodiment. The optical member 6 is provided with a convex cylindrical lens shape 8 and a tapered portion 9 on the back surface on which the optical path changing portion 7 is provided. The height direction of the cylindrical lens is provided substantially parallel to the LED arrangement row direction.
上記のような構成とすることにより、光学部材６を透過するＬＥＤである発光素子５ａの出射光における、光学基板に対して垂直な配光は、ランバート分布に比べて狭い配光分布とすることができる。つまり、凸面の円柱レンズ形状、およびテーパ部を設けることにより、高さ方向の厚みが、薄い制御部材である照明装置であっても効率よく制御部材に設けた反射部材に照射でき、空間領域を照明することができる。 With the above configuration, the light distribution perpendicular to the optical substrate in the light emitted from the light emitting element 5a that is an LED that passes through the optical member 6 has a narrow light distribution compared to the Lambert distribution. Can do. In other words, by providing a convex cylindrical lens shape and a tapered portion, even a lighting device that is a control member with a thin thickness in the height direction can efficiently irradiate the reflecting member provided on the control member, and the spatial region Can be illuminated.
光学部材６は、光源基板５ｂの発光素子５ａを配置した面と同一方向を向く面上における、発光素子５ａの略正面位置に光路変換部７を備えている。光学部材６は、光路変換部７の備える位置を除く構成について、実施の形態１と同等のものである。発光素子５ａの出射光は、光路変換部７の点線に示した面を透過することで、実施の形態１の光学部材６と同様、矢印に示す外向きに光を屈折する。 The optical member 6 includes an optical path conversion unit 7 at a substantially front position of the light emitting element 5a on a surface facing the same direction as the surface on which the light emitting element 5a of the light source substrate 5b is disposed. The optical member 6 is the same as that of the first embodiment with respect to the configuration excluding the position provided in the optical path conversion unit 7. The light emitted from the light emitting element 5a is transmitted through the surface indicated by the dotted line of the optical path conversion unit 7, and refracts the light outwardly as indicated by the arrow as in the optical member 6 of the first embodiment.
ただし、点光源であるＬＥＤの出射光を、光源基板５ｂに垂直な方向に対して、より外向きに屈折させる上で、実施の形態２に比べて実施の形態１のように光学部材６の光源基板５ｂに対向する面上に光路変換部７を形成する方が、プリズム作用を成すためより好ましい。 However, the light emitted from the LED, which is a point light source, is refracted more outward in the direction perpendicular to the light source substrate 5b, so that the optical member 6 can be refracted as in the first embodiment compared to the second embodiment. It is more preferable to form the optical path conversion unit 7 on the surface facing the light source substrate 5b because the prism function is achieved.
また、さらに構成の異なる光学部材について図８を用いて説明する。図８は、本発明の照明装置における実施の形態２とは異なる光学部材の別の構成についての上面図である。図８は、図２や図７において、光源５に対向する位置に光路変換部７を新たに設けたものであり、その他の構成については実施の形態１と同等のものである。全てのＬＥＤに対して光路変換部７を設けることで、光源基板５ｂと光学部材６との距離をより小さくし、光源５と光学部材６の光源モジュール２をさらに薄型化することができる。 Further, optical members having different configurations will be described with reference to FIG. FIG. 8 is a top view of another configuration of the optical member different from the second embodiment in the illumination device of the present invention. FIG. 8 shows a configuration in which an optical path conversion unit 7 is newly provided at a position facing the light source 5 in FIGS. 2 and 7, and other configurations are the same as those in the first embodiment. By providing the optical path conversion unit 7 for all the LEDs, the distance between the light source substrate 5b and the optical member 6 can be further reduced, and the light source module 2 of the light source 5 and the optical member 6 can be further reduced in thickness.
図８に示すように特に光源５の大きさに合わせて、光変換部７へ光源５が包含されるようにすることで、光源モジュール２の薄型化を図ることができる。光源モジュール２が薄型化されることにより、光源モジュール２から制御部材４までに間隔ができるため、外部材２の大きさを小さくしたり、制御部材４の領域を増やしたりすることができる。 As shown in FIG. 8, the light source module 2 can be thinned by including the light source 5 in the light conversion unit 7 particularly in accordance with the size of the light source 5. Since the light source module 2 is thinned, a space can be formed from the light source module 2 to the control member 4, so that the size of the outer member 2 can be reduced or the area of the control member 4 can be increased.
また、光路変換部７の形状は、発光素子５ａ配置方向の照度均一化を図るため、光学部材６の中心に対して対称にすることが好ましい。ただし、発光素子５ａが光源基板５ｂの中心に位置しない場合には、光路変換部７の形状は光学部材６の中心に対して対称にしなくとも良い。 The shape of the optical path conversion unit 7 is preferably symmetric with respect to the center of the optical member 6 in order to make the illuminance uniform in the light emitting element 5a arrangement direction. However, when the light emitting element 5a is not located at the center of the light source substrate 5b, the shape of the optical path conversion unit 7 may not be symmetric with respect to the center of the optical member 6.
ここでは実施の形態１の光学部材について説明したが、他の切り欠き形状を有する光学部材であっても、光路変換部を有する側の後背部に同様な凸面円柱レンズ形状、およびテーパ部を設けても良い。 Although the optical member of Embodiment 1 has been described here, a similar convex cylindrical lens shape and a tapered portion are provided on the back portion on the side having the optical path conversion portion even if the optical member has another notch shape. May be.
本発明は上述した各実施の形態に限定されるものではない。すなわち、請求項に示した範囲において種々の変更が可能であり、異なる実施の形態において開示された技術的手段を適宜組み合わせて得られる実施の形態についても本発明の技術的範囲に含まれる。 The present invention is not limited to the embodiments described above. That is, various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention.
本発明は、ＬＥＤ等の光源を用い、横断形状に関係なく、発光面の前方を均一に照らすことに加え、外周のある領域も均一に照らすことができる照明装置である。そのため、室内の空間領域を照らすために天井に配置した構成はもちろんのこと、それ以外に外部や広い空間に設け、ある空間領域を照らすなど幅広く利用することができる。 The present invention is an illuminating device that uses a light source such as an LED and can uniformly illuminate a region with an outer periphery in addition to uniformly illuminating the front of the light emitting surface regardless of the cross-sectional shape. For this reason, it can be used for a wide range of purposes, such as illuminating a certain space area, as well as the configuration arranged on the ceiling to illuminate the space area in the room.
１ 照明装置
２ 光源モジュール
３ 外部材
３ａ 保持部
４ 制御部材
５ 光源
５ａ 発光素子
５ｂ 光源基板
６ 光学部材
７ 光路変換部
DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Light source module 3 External material 3a Holding part 4 Control member 5 Light source 5a Light emitting element 5b Light source board 6 Optical member 7 Optical path conversion part
Claims (5)
光源モジュールは、複数の光源と、前記光源に対向し、かつ前記光源の光を透過する光学部材を含み、光路変換部が、隣接する前記光源モジュールの含む前記光源に対向して前記光学部材に設けられていることを特徴とする照明装置。 A lighting device that illuminates a certain area with a plurality of light source modules and a control member that faces the light source modules and converts light from the light source modules in different directions,
The light source module includes a plurality of light sources and an optical member that faces the light sources and transmits light from the light sources, and an optical path conversion unit faces the light sources included in the adjacent light source modules to the optical members. A lighting device characterized by being provided.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011100475A JP2014135118A (en) | 2011-04-28 | 2011-04-28 | Lighting device |
| PCT/JP2012/061449 WO2012147946A1 (en) | 2011-04-28 | 2012-04-27 | Illuminating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011100475A JP2014135118A (en) | 2011-04-28 | 2011-04-28 | Lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2014135118A true JP2014135118A (en) | 2014-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011100475A Withdrawn JP2014135118A (en) | 2011-04-28 | 2011-04-28 | Lighting device |
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|---|---|
| JP (1) | JP2014135118A (en) |
| WO (1) | WO2012147946A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018186022A (en) * | 2017-04-27 | 2018-11-22 | 株式会社日本設計 | Indoor illumination structure and indoor illumination method |
| TWI792044B (en) * | 2020-08-19 | 2023-02-11 | 楊永賢 | Light source device for auxiliary optical detection device and optical inspection device composed of the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4720077B2 (en) * | 2002-10-04 | 2011-07-13 | 日亜化学工業株式会社 | Surface emitting device |
| US8348489B2 (en) * | 2008-01-30 | 2013-01-08 | Qualcomm Mems Technologies, Inc. | Thin illumination system |
| JP2009289709A (en) * | 2008-06-02 | 2009-12-10 | Toshiba Lighting & Technology Corp | Ceiling direct attachment type illumination device and illumination device |
| US8449138B2 (en) * | 2009-08-19 | 2013-05-28 | Lg Innotek Co., Ltd. | Lighting device |
-
2011
- 2011-04-28 JP JP2011100475A patent/JP2014135118A/en not_active Withdrawn
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018186022A (en) * | 2017-04-27 | 2018-11-22 | 株式会社日本設計 | Indoor illumination structure and indoor illumination method |
| TWI792044B (en) * | 2020-08-19 | 2023-02-11 | 楊永賢 | Light source device for auxiliary optical detection device and optical inspection device composed of the same |
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| WO2012147946A1 (en) | 2012-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20140805 |